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WO2025125968A1 - Système de frein et véhicule à selle - Google Patents

Système de frein et véhicule à selle Download PDF

Info

Publication number
WO2025125968A1
WO2025125968A1 PCT/IB2024/061937 IB2024061937W WO2025125968A1 WO 2025125968 A1 WO2025125968 A1 WO 2025125968A1 IB 2024061937 W IB2024061937 W IB 2024061937W WO 2025125968 A1 WO2025125968 A1 WO 2025125968A1
Authority
WO
WIPO (PCT)
Prior art keywords
braking force
rear wheel
brake system
braking
friction
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
PCT/IB2024/061937
Other languages
English (en)
Japanese (ja)
Inventor
エディト マンヘルツ
スベン バンガ
シュテファン マルマン
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Robert Bosch GmbH
Original Assignee
Robert Bosch GmbH
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Robert Bosch GmbH filed Critical Robert Bosch GmbH
Publication of WO2025125968A1 publication Critical patent/WO2025125968A1/fr
Pending legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60T—VEHICLE BRAKE CONTROL SYSTEMS OR PARTS THEREOF; BRAKE CONTROL SYSTEMS OR PARTS THEREOF, IN GENERAL; ARRANGEMENT OF BRAKING ELEMENTS ON VEHICLES IN GENERAL; PORTABLE DEVICES FOR PREVENTING UNWANTED MOVEMENT OF VEHICLES; VEHICLE MODIFICATIONS TO FACILITATE COOLING OF BRAKES
    • B60T8/00—Arrangements for adjusting wheel-braking force to meet varying vehicular or ground-surface conditions, e.g. limiting or varying distribution of braking force
    • B60T8/17—Using electrical or electronic regulation means to control braking
    • B60T8/1701—Braking or traction control means specially adapted for particular types of vehicles
    • B60T8/1706—Braking or traction control means specially adapted for particular types of vehicles for single-track vehicles, e.g. motorcycles
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60T—VEHICLE BRAKE CONTROL SYSTEMS OR PARTS THEREOF; BRAKE CONTROL SYSTEMS OR PARTS THEREOF, IN GENERAL; ARRANGEMENT OF BRAKING ELEMENTS ON VEHICLES IN GENERAL; PORTABLE DEVICES FOR PREVENTING UNWANTED MOVEMENT OF VEHICLES; VEHICLE MODIFICATIONS TO FACILITATE COOLING OF BRAKES
    • B60T1/00—Arrangements of braking elements, i.e. of those parts where braking effect occurs specially for vehicles
    • B60T1/02—Arrangements of braking elements, i.e. of those parts where braking effect occurs specially for vehicles acting by retarding wheels
    • B60T1/10—Arrangements of braking elements, i.e. of those parts where braking effect occurs specially for vehicles acting by retarding wheels by utilising wheel movement for accumulating energy, e.g. driving air compressors
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60T—VEHICLE BRAKE CONTROL SYSTEMS OR PARTS THEREOF; BRAKE CONTROL SYSTEMS OR PARTS THEREOF, IN GENERAL; ARRANGEMENT OF BRAKING ELEMENTS ON VEHICLES IN GENERAL; PORTABLE DEVICES FOR PREVENTING UNWANTED MOVEMENT OF VEHICLES; VEHICLE MODIFICATIONS TO FACILITATE COOLING OF BRAKES
    • B60T8/00—Arrangements for adjusting wheel-braking force to meet varying vehicular or ground-surface conditions, e.g. limiting or varying distribution of braking force
    • B60T8/17—Using electrical or electronic regulation means to control braking
    • B60T8/176—Brake regulation specially adapted to prevent excessive wheel slip during vehicle deceleration, e.g. ABS
    • B60T8/1766—Proportioning of brake forces according to vehicle axle loads, e.g. front to rear of vehicle
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60T—VEHICLE BRAKE CONTROL SYSTEMS OR PARTS THEREOF; BRAKE CONTROL SYSTEMS OR PARTS THEREOF, IN GENERAL; ARRANGEMENT OF BRAKING ELEMENTS ON VEHICLES IN GENERAL; PORTABLE DEVICES FOR PREVENTING UNWANTED MOVEMENT OF VEHICLES; VEHICLE MODIFICATIONS TO FACILITATE COOLING OF BRAKES
    • B60T8/00—Arrangements for adjusting wheel-braking force to meet varying vehicular or ground-surface conditions, e.g. limiting or varying distribution of braking force
    • B60T8/26—Arrangements for adjusting wheel-braking force to meet varying vehicular or ground-surface conditions, e.g. limiting or varying distribution of braking force characterised by producing differential braking between front and rear wheels
    • B60T8/261—Arrangements for adjusting wheel-braking force to meet varying vehicular or ground-surface conditions, e.g. limiting or varying distribution of braking force characterised by producing differential braking between front and rear wheels specially adapted for use in motorcycles
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60T—VEHICLE BRAKE CONTROL SYSTEMS OR PARTS THEREOF; BRAKE CONTROL SYSTEMS OR PARTS THEREOF, IN GENERAL; ARRANGEMENT OF BRAKING ELEMENTS ON VEHICLES IN GENERAL; PORTABLE DEVICES FOR PREVENTING UNWANTED MOVEMENT OF VEHICLES; VEHICLE MODIFICATIONS TO FACILITATE COOLING OF BRAKES
    • B60T8/00—Arrangements for adjusting wheel-braking force to meet varying vehicular or ground-surface conditions, e.g. limiting or varying distribution of braking force
    • B60T8/32—Arrangements for adjusting wheel-braking force to meet varying vehicular or ground-surface conditions, e.g. limiting or varying distribution of braking force responsive to a speed condition, e.g. acceleration or deceleration
    • B60T8/321—Arrangements for adjusting wheel-braking force to meet varying vehicular or ground-surface conditions, e.g. limiting or varying distribution of braking force responsive to a speed condition, e.g. acceleration or deceleration deceleration
    • B60T8/3225—Systems specially adapted for single-track vehicles, e.g. motorcycles
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60T—VEHICLE BRAKE CONTROL SYSTEMS OR PARTS THEREOF; BRAKE CONTROL SYSTEMS OR PARTS THEREOF, IN GENERAL; ARRANGEMENT OF BRAKING ELEMENTS ON VEHICLES IN GENERAL; PORTABLE DEVICES FOR PREVENTING UNWANTED MOVEMENT OF VEHICLES; VEHICLE MODIFICATIONS TO FACILITATE COOLING OF BRAKES
    • B60T2201/00—Particular use of vehicle brake systems; Special systems using also the brakes; Special software modules within the brake system controller
    • B60T2201/06—Hill holder; Start aid systems on inclined road
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60T—VEHICLE BRAKE CONTROL SYSTEMS OR PARTS THEREOF; BRAKE CONTROL SYSTEMS OR PARTS THEREOF, IN GENERAL; ARRANGEMENT OF BRAKING ELEMENTS ON VEHICLES IN GENERAL; PORTABLE DEVICES FOR PREVENTING UNWANTED MOVEMENT OF VEHICLES; VEHICLE MODIFICATIONS TO FACILITATE COOLING OF BRAKES
    • B60T2270/00—Further aspects of brake control systems not otherwise provided for
    • B60T2270/60—Regenerative braking
    • B60T2270/604—Merging friction therewith; Adjusting their repartition
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60T—VEHICLE BRAKE CONTROL SYSTEMS OR PARTS THEREOF; BRAKE CONTROL SYSTEMS OR PARTS THEREOF, IN GENERAL; ARRANGEMENT OF BRAKING ELEMENTS ON VEHICLES IN GENERAL; PORTABLE DEVICES FOR PREVENTING UNWANTED MOVEMENT OF VEHICLES; VEHICLE MODIFICATIONS TO FACILITATE COOLING OF BRAKES
    • B60T2270/00—Further aspects of brake control systems not otherwise provided for
    • B60T2270/60—Regenerative braking
    • B60T2270/608—Electronic brake distribution (EBV/EBD) features related thereto

Definitions

  • the present invention relates to a brake system for a saddle-type vehicle and a saddle-type vehicle equipped with the brake system.
  • brake systems for saddle-type vehicles include, for example, a configuration that includes a friction brake that applies a frictional braking force to the wheels in response to the operation of a brake lever by the rider, and a regenerative brake that applies a regenerative braking force to the wheels by making a motor that drives the wheels function as a generator (see, for example, Patent Document 1).
  • the regenerative brake is configured to brake the wheel by making the motor function as a generator by the rotation of the wheel, so for example, when the rotation of the wheel is slowed down, the regenerative braking force is reduced, or when the free capacity for storing power in the vehicle battery is insufficient, the motor cannot function as a generator and the regenerative braking force cannot be generated. In such cases, there is a risk that the braking force of the saddle-type vehicle will be insufficient, thereby reducing safety.
  • the brake system can operate the rear wheel side friction imparting device with the actuator united with it to generate friction braking force on the rear wheel, thereby decelerating and stopping the saddle-type vehicle. This can improve the safety of the saddle-type vehicle.
  • a straddle-type vehicle according to the present invention is configured to include the above-mentioned brake system. With such a configuration, the same effects as those of the above-mentioned brake system can be achieved.
  • a saddle-type vehicle according to the present invention is configured to include the above-described brake system.
  • FIG. 1 A diagram for explaining a saddle-type vehicle relating to an embodiment.
  • a saddle-type vehicle means a vehicle in general on which a rider straddles and rides. Examples of saddle-type vehicles include motorcycles, noggins, and bicycles.
  • a motorcycle includes two-wheeled vehicles and three-wheeled vehicles using an engine or an electric motor as a propulsion source, and includes, for example, motorcycles, scooters, and electric scooters.
  • a bicycle means a vehicle in general that can be propelled by the rider's pedaling force applied to the pedals. Examples of bicycles include ordinary bicycles, power-assisted bicycles, and electric bicycles.
  • Fig. 1 is a diagram for explaining a saddle-ride type vehicle according to an embodiment.
  • Fig. 2 is a diagram for explaining a brake system.
  • Fig. 3 is a diagram for explaining a hydraulic control unit.
  • Fig. 4 is a diagram for explaining a rear wheel side friction imparting device and an actuator.
  • Fig. 5 is a diagram for explaining a control device.
  • Fig. 6 is a diagram for explaining a flow of a rear wheel friction imparting control operation executed by the control device.
  • a motorcycle 10 as a saddle-type vehicle includes a body 1, a handlebar 2 rotatably held on the body 1, a front wheel 3 rotatably held on the body 1 together with the handlebar 2, a rear wheel 4 rotatably held on the body 1, an electric motor 5 serving as a drive source for driving the rear wheel 4, a power unit 6 for supplying power to the electric motor 5, and a brake system 100 for braking the front wheel 3 and the rear wheel 4.
  • the electric motor 5 is an electric motor (for example, an AC motor, a brushless DC motor, a synchronous motor, an induction motor, an in-wheel motor, or the like) and can drive the rear wheels 4 by receiving power supply from the power unit 6.
  • the electric motor 5 can also function as a generator and can generate regenerative torque to brake the rear wheels 4, as described later.
  • the power unit 6 includes a power storage device 6a (e.g., a storage battery, a capacitor, etc.) that temporarily stores input power and supplies the stored power to the electric motor 5, and a power control device 6b that controls the power to charge the power storage device 6a and the power supplied from the power storage device 6a to the electric motor 5.
  • a power storage device 6a e.g., a storage battery, a capacitor, etc.
  • a power control device 6b that controls the power to charge the power storage device 6a and the power supplied from the power storage device 6a to the electric motor 5.
  • the brake system 100 includes an operator 11, an operating means 12, a front wheel braking unit 20 that brakes the front wheels 3, a rear wheel braking unit 50 that brakes the rear wheels 4, and a control device 70 that controls the braking of the front wheels 3 and the rear wheels 4.
  • the operator 11 is configured as a brake lever provided on the handlebar 2 and is operated by the rider's hand.
  • the operator 11 is connected to a master cylinder 22 that generates hydraulic pressure of brake fluid according to the movement of the operator 11, and the operator 11 and the front wheel braking unit 20 are hydraulically connected.
  • the operating means 12 is configured as a brake pedal provided on the body 1 and is operated by the rider's foot.
  • the brake system 100 is configured to include an operator 11 operated by the rider's hand, but the brake system may be configured to include an operator operated by the rider's foot or the like other than the rider's hand.
  • the brake system 100 may also be configured to include a plurality of operators, for example, a first operator corresponding to the front wheel braking unit 20 and a second operator corresponding to the rear wheel braking unit 50.
  • the front wheel braking section 20 includes a master cylinder 22, a reservoir 23, a hydraulic passage 24, a hydraulic control unit 30, and a front wheel side friction imparting device 40.
  • the master cylinder 22 is connected to the operator 11, and the movement of the operator 11 is transmitted to the master cylinder 22, which generates brake fluid pressure according to the movement of the operator 11.
  • the master cylinder 22 is also connected to a wheel cylinder 25 built into the front wheel friction imparting device 40 via a fluid path 24 filled with brake fluid, and a fluid pressure control unit 30 is connected to the middle of the fluid path 24.
  • the master cylinder 22 is also connected to a reservoir 23 that stores brake fluid.
  • the reservoir 23 is attached to the master cylinder 22.
  • Fluid path 24 is filled with brake fluid and includes brake fluid pipe 24a connecting master cylinder 22 and hydraulic pressure control unit 30, brake fluid pipe 24b connecting hydraulic pressure control unit 30 and wheel cylinder 25, and internal flow paths 24c to 24e formed inside hydraulic pressure control unit 30.
  • the front wheel side friction applying device 40 applies friction material (not shown) held in the body 1 to the disc rotor 3 a which rotates together with the front wheel 3 in response to an increase in the hydraulic pressure of the brake fluid in the wheel cylinder 25.
  • the front wheel side friction applying device 40 presses against the front wheel 3, thereby applying a frictional force to the front wheel 3, thereby generating or increasing a frictional braking force on the front wheel 3 and braking the front wheel 3.
  • the front wheel side friction applying device 40 may have other structures, and may be configured, for example, to press a friction material of a brake shoe held by the body 1 against a brake drum that rotates together with the front wheel 3, thereby generating a frictional braking force according to the amount of operation of the operating element 11.
  • the hydraulic control unit 30 has a base body 31.
  • the base body 31 is provided with a master cylinder port MP to which a brake fluid pipe 24a is connected, a wheel cylinder port WP to which a brake fluid pipe 24b is connected, a main fluid path 24c which constitutes a part of the fluid path 24 and is an internal fluid path connecting the master cylinder port MP and the wheel cylinder port WP, and a sub fluid path 24d which constitutes a part of the fluid path 24 and is an internal fluid path bypassing the main fluid path 24c.
  • the main fluid path 24c is provided with an inlet valve 32.
  • the sub fluid path 24d connects an area of the main fluid path 24c on the master cylinder port MP side of the inlet valve 32 to an area of the main fluid path 24c on the wheel cylinder port WP side of the inlet valve 32.
  • the side connected to the area of the main fluid path 24c on the wheel cylinder port WP side is defined as the upstream side, and the sub fluid path 24d is provided with, in order from the upstream side, a release valve 33, an accumulator 34, and a pump 35.
  • the base 31 has an internal flow path, a booster fluid path 24e, which connects a region of the main fluid path 24c on the master cylinder port MP side of the junction of the main fluid path 24c and the downstream end of the sub fluid path 24d, to a region of the sub fluid path 24d between the accumulator 34 and the pump 35.
  • a switch valve 38 is provided between the junction of the main fluid path 24c with the booster fluid path 24e and the junction of the downstream end of the sub fluid path 24d, and a booster valve 39 is provided midway along the booster fluid path 24e.
  • the inlet valve 32 and the switching valve 38 are solenoid valves that, for example, when controlled to a non-energized state by the control device 70, are in an open state that allows the flow of brake fluid, and when controlled to an energized state, are in a closed state that blocks the flow of brake fluid.
  • the release valve 33 and the pressure increase valve 39 are solenoid valves that, for example, when controlled to a non-energized state by the control device 70, are in a closed state that blocks the flow of brake fluid, and when controlled to an energized state, are in an open state that allows the flow of brake fluid.
  • the inlet valve 32, the release valve 33, the switching valve 38, and the pressure increase valve 39 are controlled in an energized state and a non-energized state by the control device 70 described later.
  • the accumulator 34 temporarily stores the brake fluid released from the wheel cylinder 25 when the release valve 32 is in an open state.
  • Pump 35 is driven by motor 36 and moves brake fluid stored in accumulator 34 to an area of main fluid path 24c closer to master cylinder port MP than inlet valve 32.
  • brake fluid stored in reservoir 23 can be moved to an area of main fluid path 24c closer to master cylinder port MP than inlet valve 32, thereby increasing the hydraulic pressure in wheel cylinder 25.
  • the drive state of motor 36 is controlled by control device 70.
  • the inlet valve 32, the release valve 33, the accumulator 34, the pump 35, the motor 36, the switching valve 38, and the booster valve 39 are assembled to a base 31.
  • the inlet valve 32, the release valve 33, the accumulator 34, the pump 35, the motor 36, the switching valve 38, and the control device 7 ⁇ are contained inside a housing 37 attached to the base 31.
  • the hydraulic pressure control unit 30 includes a first hydraulic pressure sensor 82 that detects the hydraulic pressure of the brake fluid in the area of the main hydraulic passage 24c on the master cylinder 22 side, and a second hydraulic pressure sensor 83 that detects the hydraulic pressure of the brake fluid in the area of the main hydraulic passage 24c on the wheel cylinder 25 side.
  • the hydraulic pressure control unit 30 may be configured to include a sensor that detects another physical quantity that can be substantially converted into the hydraulic pressure of the brake fluid in the master cylinder 22 and the wheel cylinder 25. Also, the hydraulic pressure control unit 30 may be configured to include only one of the first hydraulic pressure sensor 82 and the second hydraulic pressure sensor 83. In addition, the hydraulic pressure of the brake fluid in the master cylinder 22 or in the area of the main fluid path 24c on the master cylinder 22 side and the hydraulic pressure of the brake fluid in the wheel cylinder 25 or in the area of the main fluid path 24c on the wheel cylinder 25 side may be estimated based on other physical quantities that can be substantially converted into these values.
  • hydraulic control unit 30 includes internal flow paths 24c-24e, inlet valve 32, release valve 33, accumulator 34, pump 35, motor 36, selector valve 38, and pressure increase valve 39.
  • the operation of inlet valve 32, release valve 33, motor 36, selector valve 38, and pressure increase valve 39 is controlled by control device 7 ⁇ , which will be described later, thereby controlling the pressure of brake fluid supplied to wheel cylinder 25.
  • the rear wheel braking unit 50 includes a regenerative braking device 51, a rear wheel side friction imparting device 52, and an actuator 55.
  • the regenerative braking device 51 generates a regenerative braking force on the rear wheels 4 to brake them.
  • the regenerative braking device 51 includes, for example, an electric motor 5 and a power unit 6.
  • the power unit 6 includes a power storage device 6a and a power control device 6b.
  • the power control device 6b causes the electric motor 5 to function as a generator and causes the electric motor 5 to generate a regenerative torque in the opposite direction to the rotation direction of the rear wheels 4.
  • the regenerative torque is then applied to the rear wheels 4 as a regenerative braking force to brake the rear wheels 4.
  • the power control device 6b also controls the amount of charge to the power storage device 6a to control the amount of power generation in the electric motor 5, thereby controlling the regenerative torque generated in the electric motor 5, i.e., the regenerative braking force.
  • the regenerative braking device 51 may be configured to include a dedicated generator that functions as a generator using the rotational force of the rear wheels 4.
  • the rear wheel side friction imparting device 52 is configured as a floating caliper and is unitized with the actuator 55.
  • the rear wheel side friction imparting device 52 includes a pair of friction materials 53a, 53b that sandwich a disc rotor 4a that rotates together with the rear wheel 4, and a spindle 54 that adjusts the distance of the friction materials 53a, 53b to the disc rotor 4a.
  • the actuator 55 includes an electric motor and a mechanism (not shown) that linearly moves the spindle 54 in response to the rotational motion of the electric motor.
  • the actuator 55 is controlled by a control device 70, and can adjust the distance of the friction materials 53a, 53b to the disc rotor 4a by driving the electric motor to cause the spindle 54 to move linearly.
  • the rear-wheel friction imparting device 52 applies frictional force to the rear wheel 4 by bringing the friction materials 53a, 53b into contact with the disc rotor 4a, thereby braking the rear wheel 4.
  • the rear wheel side friction imparting device 52 may be configured to apply frictional force to the rear wheel 4 by moving the friction materials 53a, 53b by the operation of the actuator 55 united with the rear wheel side friction imparting device 52, and to brake the rear wheel 4.
  • the mechanism for adjusting the distance to the disc rotor 4a by the spindle 54 may be configured to transmit the linear motion of the spindle 54 to the friction material via an elastic member, or may be configured to transmit the linear motion of the spindle 54 to the friction material via a fluid such as hydraulic fluid.
  • the rear wheel side friction imparting device 52 may have a structure other than a floating type caliper, and may be configured as an opposed type caliper, for example.
  • the actuator 55 may be configured to be attached to the outside of the rear wheel side friction imparting device 52, or may be built into the rear wheel side friction imparting device 52. The configuration may be such that
  • the rear-wheel-side friction imparting device 52 moves the spindle 54 in a first direction by driving the actuator 55 in response to a control signal from the control device 7 ⁇ , and in response to the movement of the spindle 54 in the first direction, moves the friction materials 53a, 53b in a direction pressing them against the disc rotor 4a of the rear wheel 4, thereby pressing the friction materials 53a, 53b against the disc rotor 4a, thereby generating or increasing a frictional braking force that brakes the rear wheel 4.
  • the rear wheel side friction imparting device 52 moves the spindle 54 in a second direction opposite to the first direction by driving the actuator 55 in response to a control signal from the control device 70, and in response to the movement of the spindle 54 in the second direction, the friction materials 53a, 53b pressed against the disc rotor 4a are moved in a direction away from the disc rotor 4a of the rear wheel 4, thereby reducing the frictional braking force that brakes the rear wheel 4. Also, the rear wheel side friction imparting device 52 moves the spindle 54 in the second direction to move the friction materials 53a, 53b away from the disc rotor 4a of the rear wheel 4, thereby preventing the frictional braking force that brakes the rear wheel 4 from being generated.
  • the rear wheel friction imparting device 52 is not hydraulically connected to the operator 11, but is formed as a unit together with the actuator 55 which operates in response to a control signal from the control device 7 ⁇ .
  • the friction materials 53a, 53b are moved to impart a frictional braking force to the rear wheel 4, thereby braking the wheel.
  • the control device 7O includes a first control unit 71 that controls the operation of the inlet valve 32, the release valve 33, the motor 36, the switching valve 38, and the booster valve 39 provided in the hydraulic control unit 30, a second control unit 72 that controls the operation of the regenerative braking device 51, a third control unit 73 that controls the operation of the actuator 55, and an acquisition unit 74 that acquires output signals and the like from various sensors.
  • the control device 70 is unitized with the hydraulic control unit 30 and is disposed in the body 1 of the motorcycle 1O.
  • first control unit 71, the second control unit 72, and the third control unit 73 may be composed of, for example, a microcomputer, a microprocessor unit, etc., and may be composed of updatable software firmware, etc., and may be a program module executed by instructions from a CPU, etc.
  • the control device 70 is electrically connected to various sensors including, for example, a front wheel rotation speed sensor 81, a first hydraulic pressure sensor 82, a second hydraulic pressure sensor 83, a rear wheel rotation speed sensor 91, a battery remaining amount sensor 92, a friction material movement sensor 93, an operation means sensor 94, a road surface gradient sensor 95, and a key switch sensor 96, and the output signals of these sensors are input by wire or wirelessly.
  • the control device 70 can execute various arithmetic processing and various operation controls described later based on the output signals of these sensors.
  • the control device 70 is also electrically connected to the inlet valve 32, the release valve 33, the motor 36, the switching valve 38, the booster valve 39, the power control device 6b, and the actuator 55, and outputs control signals to these devices, etc., via wires or wirelessly, for controlling their operation.
  • the front wheel rotation speed sensor 81 detects the rotation speed of the front wheel 3.
  • the front wheel rotation speed sensor 81 is held by the body 1, for example. Note that the front wheel rotation speed sensor 81 may detect another physical quantity that can be substantially converted into the rotation speed of the front wheel 3.
  • the first hydraulic pressure sensor 82 detects the hydraulic pressure of the brake fluid in the area on the master cylinder 22 side in the main hydraulic path 24c of the hydraulic control unit 30.
  • the first hydraulic pressure sensor 82 is provided in the hydraulic control unit 30 as described above (see FIG. 2).
  • the first hydraulic pressure sensor 82 may be provided in the master cylinder 22 to detect the hydraulic pressure of the brake fluid in the master cylinder 22.
  • the first hydraulic pressure sensor 82 detects the hydraulic pressure of the brake fluid in the master cylinder 22 substantially. It may also be possible to detect other physical quantities that can be converted into physical quantities (for example, the amount of operation of the operator 11, the displacement of the operator 11, the displacement of the piston in the master cylinder 22, etc.).
  • the second hydraulic pressure sensor 83 detects the hydraulic pressure of the brake fluid in the area on the wheel cylinder 25 side in the main hydraulic path 24c of the hydraulic control unit 30.
  • the second hydraulic pressure sensor 83 is provided in the hydraulic control unit 30 as described above (see FIG. 2).
  • the second hydraulic pressure sensor 83 may be provided in the wheel cylinder 25 to detect the hydraulic pressure of the brake fluid in the wheel cylinder 25.
  • the second hydraulic pressure sensor 83 may also detect another physical quantity that can be substantially converted into the hydraulic pressure of the brake fluid in the wheel cylinder 25 (for example, the displacement of the friction material of the front-wheel-side friction imparting device 40).
  • the rear wheel rotation speed sensor 91 detects the rotation speed of the rear wheel 4.
  • the rear wheel rotation speed sensor 91 is held by the body 1, for example.
  • the rear wheel rotation speed sensor 91 may detect another physical quantity that can be substantially converted into the rotation speed of the rear wheel 4.
  • the remaining battery sensor 92 detects the amount of power stored in the power storage device 6a.
  • the remaining battery sensor 92 is provided in the power storage device 6a, for example.
  • the remaining battery sensor 92 may detect other physical quantities that can be substantially converted into the amount of power stored in the power storage device 6a (for example, the voltage value of a storage battery provided in the power storage device 6a, the current value input/output to/from the power storage device 6a, the free capacity in which the power storage device 6a can store power, etc.).
  • the friction material motion sensor 93 detects the motion of the friction materials 53a, 53b of the rear wheel side friction imparting device 52.
  • the friction material motion sensor 93 is held, for example, by the front wheel side friction imparting device 40.
  • the friction material motion sensor 93 may detect other physical quantities (for example, the drive amount of the actuator 55, the current value for driving the actuator 55, the reaction force acting on the spindle 54, the reaction force acting on the friction material, etc.) that can be substantially converted into the friction braking force generated on the rear wheel 4 by the rear wheel side friction imparting device 52.
  • the friction material motion sensor 93 may also detect other physical quantities that can be substantially converted into the drive amount of the actuator 55 or the reaction force acting on the spindle 54.
  • the operation means sensor 94 detects the ON/OFF state of the operation means 12.
  • the operation means sensor 94 is held by the body 1 together with the operation means 12, for example.
  • the road gradient sensor 95 detects the gradient of the road on which the motorcycle 10 is traveling or stopped.
  • the road gradient sensor 95 is held by the body 1, for example.
  • the road gradient sensor 95 may detect another physical quantity that can be substantially converted into the gradient of the road.
  • the key switch sensor 96 detects the ON/OFF state of a key switch (so-called ignition switch) that is operated when the rider starts using the motorcycle 10.
  • the key switch sensor 96 is held by the body 1, for example.
  • the key switch sensor 96 may detect another physical quantity that can substantially detect when the rider starts using the motorcycle 10.
  • the first control unit 71, the second control unit 72, the third control unit 73, and the acquisition unit 74 are housed in the housing 37 of the hydraulic control unit 30 and are unitized with the hydraulic pressure adjustment mechanism (e.g., the inlet valve 32, the release valve 33, the motor 36, the switching valve 38, the booster valve 39, etc.).
  • the hydraulic pressure adjustment mechanism e.g., the inlet valve 32, the release valve 33, the motor 36, the switching valve 38, the booster valve 39, etc.
  • the first control unit 71, the second control unit 72, the third control unit 73, and the acquisition unit 74 are arranged in the control device 70 that is unitized with the hydraulic control unit 30.
  • the first control unit 71, the second control unit 72, the third control unit 73, and the acquisition unit 74 may be unitized with any of the electric motor 5, the power storage device 6a, the power control device 6b, and the actuator 55, or may be divided into a plurality of units and arranged in the motorcycle 10.
  • the first control unit 71 may be unitized with the hydraulic control unit 30, the second control unit 72 may be unitized with the regenerative braking device 51, and the third control unit may be unitized with the actuator 55.
  • the control device 70 can execute a normal brake control operation in which the front wheel-side friction applying device 40 applies a friction braking force to the front wheel 3 in response to the movement of the operating element 11.
  • the first control unit 71 controls the inlet valve 32, the release valve 33, the switching valve 38, and the pressure increase valve 39 to a non-energized state and controls the motor 36 to a non-driven state when the motorcycle 10 is stopped or when the motorcycle 10 is traveling without any slippage exceeding a reference value occurring in the front wheel 3 and the rear wheel 4.
  • control device 70 can execute an interlocking brake control operation in which the braking force requested by the rider based on the movement of the operating element 11 (hereinafter, sometimes referred to as the requested braking force) is shared between the front wheel friction imparting device 40 and the regenerative braking device 51.
  • the acquisition unit 74 first acquires the requested braking force based on the output signal of the first hydraulic pressure sensor 82, acquires driving information (e.g., speed, inclination of the vehicle body, etc.) relating to the driving state of the motorcycle 10 based on the output signals of the front wheel rotation speed sensor 81 and the rear wheel rotation speed sensor 91, etc., and acquires capacity information relating to the free capacity of the storage device 6a based on the output signal of the remaining storage capacity sensor 92.
  • driving information e.g., speed, inclination of the vehicle body, etc.
  • the first control unit 71 calculates the regenerative braking force that can be generated by the regenerative braking device 51 based on the driving information and capacity information acquired by the acquisition unit 74, and compares the regenerative braking force with the required braking force to determine whether the required braking force exceeds the regenerative braking force.
  • the required braking force exceeds the regenerative braking force
  • the first control unit 71 controls the hydraulic control unit 30 so that the front wheel side friction imparting device 40 does not generate a frictional braking force.
  • the first control unit 71 controls the front wheel side friction applying device 40 and the regenerative braking device 51 to generate a regenerative braking force equivalent to the required braking force.
  • the first control unit 71 may be configured to distribute the required braking force between the front wheel side friction applying device 40 and the regenerative braking device 51 in a ratio of the friction braking force at the front wheel 3 and the regenerative braking force at the rear wheel 4 so as to brake the motorcycle 10 while suppressing a decrease in the running stability.
  • the first control unit 71 and the second control unit 72 execute an anti-lock control operation to suppress locking when at least one of the front wheels 3 and the rear wheels 4 is locked or there is a possibility that the wheels will lock.
  • the first control unit 71 determines whether the front wheels 3 are locked or there is a possibility that the wheels will lock, for example, based on the output signals of the front wheel rotation speed sensor 81 and the rear wheel rotation speed sensor 91 acquired by the acquisition unit 74.
  • the first control unit 71 and the second control unit 72 can judge whether the front wheel 3 and the rear wheel 4 of the motorcycle 10 are locked or may be locked by a well-known method using the output signals of the front wheel rotation speed sensor 81 and the rear wheel rotation speed sensor 91, etc.
  • the first control unit 71 and the second control unit 72 execute a slip control operation to suppress slip when at least one of the front wheels 3 and the rear wheels 4 is in a state where slippage exceeding a reference value occurs or there is a possibility of slippage.
  • the first control unit 71 determines whether or not the front wheels 3 are in a state where slippage exceeding a reference value occurs or there is a possibility of slippage, for example, based on the output signals of the front wheel rotation speed sensor 81 and the rear wheel rotation speed sensor 91 acquired by the acquisition unit 74.
  • the first control unit 71 controls the hydraulic control unit 30 to increase or decrease the brake fluid in the wheel cylinder 25, thereby suppressing slippage of the front wheels 3 or reducing the possibility of slippage.
  • the second control unit 72 judges whether the rear wheel 4 is slipping beyond a reference value or is likely to slip based on the output signals of the front wheel rotation speed sensor 81 and the rear wheel rotation speed sensor 91 acquired by the acquisition unit 74.
  • the first control unit 71 and the second control unit 72 may control the hydraulic control unit 30 or the regenerative braking device 51 to apply the braking force of one wheel to the other wheel when the braking force of one wheel is reduced. This makes it possible to compensate for the reduction in the braking force of one wheel with the braking force of the other wheel.
  • the third control unit 73 can execute a rear-wheel friction imparting control operation S a for imparting a friction braking force to the rear wheel 4 by the rear-wheel-side friction imparting device 52.
  • the rear-wheel friction imparting control operation S a will be described with reference to FIG. 6.
  • the acquisition unit 74 acquires the output signals of the front wheel rotation speed sensor 81, the first hydraulic pressure sensor 82, the second hydraulic pressure sensor 83, the rear wheel rotation speed sensor 91, the road surface gradient sensor 95, and the key switch sensor 96 (SaO1). After that, the third control unit 73 determines whether or not the reference condition is satisfied based on the output signals acquired by the acquisition unit 74 (Sa02).
  • the reference conditions include a first reference condition to a fourth reference condition, and the third control unit 73 determines that the reference conditions are satisfied when any of the first reference condition to the fourth reference condition is satisfied.
  • the first reference condition is that the motorcycle 10 is stopped and a predetermined time has passed since the key switch of the motorcycle 10 was turned on.
  • the second reference condition is that the motorcycle 10 is stopped and the gradient of the road surface on which the motorcycle 10 is stopped exceeds a reference value.
  • the third condition is that the braking force required by the rider exceeds the friction braking force generated by the front wheel friction imparting device 40.
  • the fourth condition is that the braking force required by the rider exceeds the sum of the friction braking force generated by the front wheel friction application device 40 and the regenerative braking force generated by the regenerative braking device 51.
  • the third control unit 73 determines whether the motorcycle 10 is stopped or not based on the output signal of either or both of the front wheel rotation speed sensor 81 and the rear wheel rotation speed sensor 91.
  • the third control unit 73 also obtains the elapsed time from when the key switch was turned ON based on the output signal of the key switch sensor 96, and determines whether or not it is within a predetermined time since the key switch was turned ON.
  • the third control unit 73 also determines whether or not the gradient of the road surface exceeds a reference value based on the output signal of the road surface gradient sensor 95.
  • the third control unit 73 also obtains the required braking force based on the output signal of the first hydraulic pressure sensor 82, obtains the frictional braking force generated by the front wheel friction imparting device 40 based on the output signal of the second hydraulic pressure sensor 83, and determines whether the braking force required by the rider exceeds the frictional braking force generated by the front wheel friction imparting device 40.
  • the third control unit 73 also obtains the required braking force based on the output signal of the first hydraulic pressure sensor 82, obtains the frictional braking force generated by the front wheel friction imparting device 40 based on the output signal of the second hydraulic pressure sensor 83, and obtains information on the regenerative braking force from the power control device 6b, and determines whether the braking force required by the rider exceeds the sum of the frictional braking force generated by the front wheel friction imparting device 40 and the regenerative braking force generated by the regenerative braking device 51.
  • the third control unit 73 may determine the stopped state based on the output signal of either the front wheel rotation speed sensor 81 or the rear wheel rotation speed sensor 91.
  • the third control unit 73 may also determine the stopped state based on the output signal of a sensor other than the front wheel rotation speed sensor 81 and the rear wheel rotation speed sensor 91 (e.g., a vehicle speed sensor, an inertial force sensor, etc.).
  • a sensor other than the front wheel rotation speed sensor 81 and the rear wheel rotation speed sensor 91 e.g., a vehicle speed sensor, an inertial force sensor, etc.
  • the braking force required by the rider may correspond to the braking force allocated by the first control unit 71 to the front wheel friction imparting device 40 and the regenerative braking device 51 when the above-mentioned linked brake control operation is being executed.
  • the third control unit 73 determines in step Sa02 that the reference condition is satisfied, it controls the actuator 55 to move the spindle 54 of the rear wheel side friction imparting device 52 in the first direction and press the friction materials 53a, 53b against the disc rotor 4a of the rear wheel 4 to impart a frictional braking force to the rear wheel 4 to brake the rear wheel 4 (Sa03).
  • the third control unit 73 After the third control unit 73 starts applying frictional braking force by the rear wheel friction applying device 52 in step Sa03, it executes a release standby process to maintain braking control of the rear wheel 4 and wait until the release condition is satisfied (Sa04).
  • the acquisition unit 74 acquires an output signal of the operating means sensor 94. Then, the third control unit 73 judges whether the operating means 12 has been operated based on the output signal of the operating means sensor 94. In addition, when the first reference condition is satisfied, the third control unit 73 judges whether a predetermined time has elapsed since the key switch was turned ON. Then, when it is determined that the operating means 12 has been operated, or when it is determined that a predetermined time has elapsed since the key switch was turned ON, it is determined that the release condition is established (S a 0 5 ).
  • the release standby process continues (S a04), and the rear wheel side friction imparting device 52 is controlled to maintain braking of the rear wheel 4.
  • the actuator 55 is controlled to move the spindle 54 of the rear wheel side friction imparting device 52 in the second direction, and the friction materials 53 a, 53 b of the rear wheel side friction imparting device 52 are moved away from the disc rotor 4 a of the rear wheel 4, thereby ending the application of the friction braking force to the rear wheel 4 (S a06).
  • the third control unit 73 applies a frictional braking force to the rear wheel 4 via the rear wheel friction application device 52. This makes it possible to suppress the movement of the motorcycle 10, for example, during a period when the rider is preparing to board the motorcycle 10.
  • the third control unit 73 applies a frictional braking force to the rear wheel 4 via the rear wheel-side friction application device 52. Therefore, it is possible to prevent the motorcycle 10 from sliding downhill when stopped on a slope or the like.
  • the third control unit 73 applies a frictional braking force to the rear wheel 4 through the rear wheel side friction imparting device 52. Therefore, for example, when an abnormality occurs in the front wheel braking unit 20 and the frictional braking force provided by the front wheel side friction imparting device 40 cannot reach the required braking force, the motorcycle 10 can be decelerated and stopped, thereby improving safety when braking the motorcycle 10.
  • the third control unit 73 applies a frictional braking force to the rear wheel 4 by the rear-wheel-side friction imparting device 52.
  • the third control unit 73 applies a frictional braking force to the rear wheel 4 by the rear-wheel-side friction imparting device 40.
  • the motorcycle 10 can be decelerated and stopped, thereby improving safety when braking the motorcycle 10.
  • the brake system of a saddle-type vehicle has been, for example,
  • the brake system is equipped with a hydraulic brake that applies frictional braking force to the wheels in response to the operation of the brakes, and a regenerative brake that applies regenerative braking force to the wheels by making the motor that drives the wheels function as a generator.
  • the regenerative brake brakes brake the wheels by making the motor function as a generator using the rotational force of the wheels.
  • the braking force of the regenerative brake decreases, or when the battery of the vehicle does not have enough capacity to store power and the motor cannot function as a generator, the regenerative braking force cannot be generated. In such cases, there is a risk that the braking force of the saddle-type vehicle will be insufficient, thereby reducing safety.
  • the present embodiment relates to a brake system 1 for a motorcycle 10 as a saddle-type vehicle.
  • the motorcycle 10 includes a front wheel braking section 20 that brakes a front wheel 3 of the motorcycle 10, and a rear wheel braking section 50 that brakes a rear wheel 4 of the motorcycle 10.
  • the front wheel braking section 20 includes a front wheel side friction applying device 40 that applies a friction braking force corresponding to the hydraulic pressure of brake fluid generated in a master cylinder 22 and supplied to a wheel cylinder 25 in response to the movement of an operating element 11 operated by a rider to the front wheel 3 to apply braking force.
  • the rear wheel braking section 50 includes a regenerative braking device 51 that causes an electric motor 5 to function as a generator by the rotational force of the rear wheel 4 to generate a regenerative braking force on the rear wheel 4 to apply braking force.
  • the rear wheel braking section 50 further includes a friction material 53 a, 53 b that moves to apply the friction braking force to the rear wheel 4.
  • the friction material applying device includes a rear wheel side friction applying device 52 that applies a braking force to the rear wheel side friction applying device 52 and an actuator 55 that is unitized with the rear wheel side friction applying device 52 and moves the friction materials 53 a, 53 b.
  • the front wheel braking unit 20 includes the front wheel side friction imparting device 40
  • the rear wheel braking unit 50 includes the regenerative braking device 51
  • the rear wheel braking unit 50 includes a rear wheel side friction imparting device 52 that moves friction materials 53a, 53b to impart frictional braking force to the rear wheel 4 to brake it, and an actuator 55 that is unitized with the rear wheel side friction imparting device 52 and moves the friction materials 53a, 53b.
  • a braking force can be generated by the front wheel side friction imparting device 40 and the regenerative braking device 51, and when the regenerative braking force by the regenerative braking device 51 decreases (for example, when the motorcycle 10 is running slowly), a braking force can be generated by the front wheel side friction imparting device 40 and the regenerative braking device 51.
  • the actuator 55 which is unitized with the rear wheel side friction applying device 52, is operated to apply a friction braking force to the rear wheel 4, thereby slowing down and/or stopping the motorcycle 10. This improves the safety of the motorcycle 10 during braking.
  • the brake system 1 ⁇ of this embodiment includes a front wheel braking section 2 ⁇ including a front wheel friction imparting device 4 ⁇ , and a rear wheel braking section 50 including a rear wheel friction imparting device 52 unitized with a regenerative braking device 51 and an actuator 55.
  • the brake system 1 ⁇ also includes a control device 7 ⁇ that controls the friction braking force applied by the rear wheel friction imparting device 52.
  • a requested braking force which is the braking force requested by the rider based on the movement of the operating element 11, exceeds the friction braking force applied by the front wheel friction imparting device 40 (Sa02)
  • the control device 7 ⁇ performs control to generate or increase the friction braking force applied by the rear wheel friction imparting device 52.
  • the control device 70 executes a stopping assistance control operation.
  • a stopping assistance control operation For example, when the hydraulic control unit 30 of the front wheel braking section 20 or the front wheel friction imparting device 40 fails and the motorcycle 10 is in a state where the rider's requested braking force cannot be imparted to the front wheel 3, and it is determined that the rider's requested braking force exceeds the friction braking force provided by the front wheel friction imparting device 40, the rear wheel friction imparting device 52 generates or increases the friction braking force, thereby slowing down and stopping the motorcycle 10. This improves safety during braking of the motorcycle 10.
  • the brake system 100 of this embodiment is configured to include a front wheel braking section 20 including a front wheel friction imparting device 40, and a rear wheel braking section 50 including a rear wheel friction imparting device 52 unitized with a regenerative braking device 51 and an actuator 55.
  • the brake system 100 is also configured to include a control device 70 that controls the friction braking force provided by the rear wheel friction imparting device 52.
  • the control device 70 is configured to perform control to generate or increase the friction braking force provided by the rear wheel friction imparting device 52 when it is determined in the stopping assistance control operation that the requested braking force, which is the braking force requested by the rider based on the movement of the operating element 11, exceeds the sum of the friction braking force provided by the front wheel friction imparting device 40 and the regenerative braking force provided by the regenerative braking device 51 (Sa02).
  • the control device 70 executes the stop assistance control operation, for example, when the motorcycle 10 is stopped or traveling at a low speed and the regenerative braking force generated by the regenerative braking device 5! is restricted, or when the hydraulic control unit 30 of the front wheel brake unit 20 or the front wheel side friction imparting device 40 has a malfunction and the motorcycle 10 is in a state in which the rider's requested braking force cannot be applied to the front wheel 3, and it is determined that the rider's requested braking force exceeds the sum of the friction braking force by the front wheel side friction imparting device 40 and the regenerative braking force by the regenerative braking device 5I, the control device 70 can decelerate and stop the motorcycle 10 by generating or increasing the friction braking force by the rear wheel side friction imparting device 52. This can improve the safety of the motorcycle 10 during braking.
  • the brake system 1 ⁇ of this embodiment includes a front wheel braking section 2 ⁇ including a front wheel friction imparting device 4 ⁇ , and a rear wheel braking section 50 including a rear wheel friction imparting device 52 unitized with a regenerative braking device 51 and an actuator 55.
  • the brake system 1 ⁇ also includes a control device 7 ⁇ that controls the friction braking force applied by the rear wheel friction imparting device 52.
  • the control device 7 ⁇ performs control to generate or increase the friction braking force applied by the rear wheel friction imparting device 52.
  • the control device 70 executes the stopping assistance control operation to generate or increase the frictional braking force by the rear wheel side friction imparting device 52 when the motorcycle 10 is stopped, thereby maintaining the motorcycle 10 in a stopped state. Therefore, for example, when the motorcycle 10 is started on an uphill road, it is possible to suppress movement of the motorcycle 10 unintended by the rider, thereby improving the safety of the motorcycle 10.
  • the brake system 1 ⁇ of this embodiment includes a front wheel braking section 2 ⁇ including a front wheel friction imparting device 4 ⁇ , and a rear wheel braking section 50 including a rear wheel friction imparting device 52 unitized with a regenerative braking device 51 and an actuator 55.
  • the brake system 1 ⁇ also includes a control device 7 ⁇ that controls the friction braking force applied by the rear wheel friction imparting device 52.
  • the control device 7 ⁇ is configured to perform control to generate or increase the friction braking force applied by the rear wheel friction imparting device 52 in a stopping assistance control operation.
  • the control device 70 executes the stopping assistance control operation when the motorcycle 10 is stopped and the road gradient exceeds the reference value.
  • the friction braking force is generated or increased by the rear wheel side friction imparting device 52, so that, for example, in a case where the motorcycle 10 is started on an uphill road, in which the motorcycle 10 is more likely to move unintentionally by the rider, the movement of the motorcycle 10 can be suppressed, and the safety of the motorcycle 10 can be improved.
  • the brake system 100 of this embodiment is configured to include a front wheel braking section 20 including a front wheel friction imparting device 40, and a rear wheel braking section 50 including a rear wheel friction imparting device 52 unitized with a regenerative braking device 51 and an actuator 55.
  • the brake system 100 is provided with a brake pedal as an operating means 12 operated by a rider that is different from the operating element 11.
  • the control device 70 controls the frictional braking force applied by the rear wheel friction imparting device 52 to be reduced or not generated.
  • Brake system 100 of this embodiment includes a rear-wheel-side friction imparting device 52 unitized with an actuator 55.
  • Rear-wheel-side friction imparting device 52 is configured to move frictional materials 53a, 53b in response to movement of a spindle 54 moved by an actuator 55 controlled by a control device 70, thereby imparting a frictional braking force to a rear wheel 4.
  • the frictional materials 53a, 53b are moved in a direction pressed against the rear wheel 4 in response to movement of the spindle 54 in a first direction, and when the frictional braking force is to be decreased, the frictional materials 53a, 53b are moved in a direction away from the rear wheel 4 in response to movement of the spindle 54 in a second direction opposite to the first direction.
  • the frictional braking force applied to the rear wheel 4 by the rear wheel side friction application device 52 can be increased and decreased regardless of the movement of the operating element 11.
  • the rear wheel side friction application device 52 is configured to increase and decrease the frictional braking force by controlling the actuator 55 by the control device 70, and is configured to generate frictional braking force only on the rear wheel 4. This makes it possible to narrow the wiring area connecting the control device 70 and the actuator 55, and to control the frictional braking force of the rear wheel 4 without using hydraulic pressure. This improves the mountability of the brake system 100 on the motorcycle 10 and improves safety.
  • the brake system 100 of this embodiment includes a front wheel braking unit 20 including a front wheel friction imparting device 40, a rear wheel braking unit 50 including a rear wheel friction imparting device 52 unitized with a regenerative braking device 51 and an actuator 55, and a single operating element 11 that is common to the front wheel braking unit 20 and the rear wheel braking unit 50.
  • the front wheel braking unit 20 and the rear wheel braking unit 50 generate braking forces by operating the single operating element 11, simplifying the operation by the rider.
  • the brake system 100 of this embodiment is configured to include one operator 11 as an operator operated by a rider. With this configuration, it is possible to improve the operability of the brake system 100 by the rider.
  • the brake system 100 of this embodiment is configured to include an operator 11 operated by a rider's hand. Such a configuration allows the rider to easily fine-tune the operation of the operator 11, thereby improving the operability of the brake system 100.
  • the motorcycle 10 of this embodiment is configured to include the above-mentioned brake system 100. With this configuration, the motorcycle 10 exhibits the same effects as the above-described brake system 10O.
  • the brake system 100 is configured to have one operator 11 common to the front wheel braking unit 20 and the rear wheel braking unit 50, but the brake system 100 may include a first operator as an operator and a second operator different from the first operator as an operator, and the front wheel braking unit 20 may be operated by the first operator, and the rear wheel braking unit 50 may be operated by the second operator.
  • the braking forces of the front wheel braking unit 20 and the rear wheel braking unit 50 can be adjusted based on the operation states of the first operator and the second operator by the rider.
  • the brake system according to the embodiment has been described above, the brake system according to the present invention is not limited to the description of the embodiment. For example, only a part of the embodiment may be implemented.

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  • Engineering & Computer Science (AREA)
  • Transportation (AREA)
  • Mechanical Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Regulating Braking Force (AREA)
  • Electric Propulsion And Braking For Vehicles (AREA)
  • Braking Arrangements (AREA)
  • Braking Systems And Boosters (AREA)

Abstract

Le but de la présente invention est de fournir un système de frein pour un véhicule à selle avec lequel il est possible d'améliorer la sécurité. Un système de frein 100 comprend une unité de freinage de roue avant 20 pour freiner une roue avant 3 et une unité de freinage de roue arrière 50 pour freiner une roue arrière 4. L'unité de freinage de roue avant 20 comprend un dispositif d'application de frottement de roue avant 40 pour appliquer une force de freinage par frottement à la roue avant 3 conformément au déplacement d'un élément d'actionnement 11 pour effectuer un freinage. L'unité de freinage de roue arrière 50 comprend un dispositif de freinage régénératif 51 pour générer une force de freinage régénératif sur la roue arrière 4 pour effectuer un freinage, et comprend en outre un dispositif d'application de frottement de roue arrière 52 pour déplacer des éléments de frottement 53a, 53b afin d'appliquer une force de freinage par frottement à la roue arrière 4 pour effectuer un freinage, et un actionneur 55 qui est intégré en une seule unité avec le dispositif d'application de frottement de roue arrière 52 et qui est destiné à déplacer les éléments de frottement 53a, 53b.
PCT/IB2024/061937 2023-12-14 2024-11-27 Système de frein et véhicule à selle Pending WO2025125968A1 (fr)

Applications Claiming Priority (2)

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JP2023210983 2023-12-14
JP2023-210983 2023-12-14

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Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20100017085A1 (en) * 2006-06-14 2010-01-21 Continental Teves Ag & Co. Ohg Method for regulating the pressure in an electronically controlled brake system, and electronic brake system
DE102009040169A1 (de) * 2009-09-04 2011-03-24 Continental Teves Ag & Co. Ohg Bremssystem für ein Kraftfahrzeug, zugehöriges Betriebsverfahren und Kraftfahrzeug
EP2314473A2 (fr) * 2002-03-11 2011-04-27 Vectrix International Limited Système de freinage par récupération pour véhicule électrique
US20110233994A1 (en) * 2010-03-29 2011-09-29 Electric Vehicle Manufacturing, LLC System And Method To Control Regenerative Braking
US20210046997A1 (en) * 2019-08-15 2021-02-18 Lyft, Inc. Systems and methods for configuring personal mobility vehicle brakes based on location
WO2022144719A1 (fr) * 2020-12-28 2022-07-07 Brembo S.P.A. Système de freinage intégré pour motocyclettes, procédé de commande du système de freinage intégré pour motocyclettes et motocyclette associée

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2314473A2 (fr) * 2002-03-11 2011-04-27 Vectrix International Limited Système de freinage par récupération pour véhicule électrique
US20100017085A1 (en) * 2006-06-14 2010-01-21 Continental Teves Ag & Co. Ohg Method for regulating the pressure in an electronically controlled brake system, and electronic brake system
DE102009040169A1 (de) * 2009-09-04 2011-03-24 Continental Teves Ag & Co. Ohg Bremssystem für ein Kraftfahrzeug, zugehöriges Betriebsverfahren und Kraftfahrzeug
US20110233994A1 (en) * 2010-03-29 2011-09-29 Electric Vehicle Manufacturing, LLC System And Method To Control Regenerative Braking
US20210046997A1 (en) * 2019-08-15 2021-02-18 Lyft, Inc. Systems and methods for configuring personal mobility vehicle brakes based on location
WO2022144719A1 (fr) * 2020-12-28 2022-07-07 Brembo S.P.A. Système de freinage intégré pour motocyclettes, procédé de commande du système de freinage intégré pour motocyclettes et motocyclette associée

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