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KR20120131608A - Methdod for controlling brake of smart brake booster in vehicle - Google Patents

Methdod for controlling brake of smart brake booster in vehicle Download PDF

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Publication number
KR20120131608A
KR20120131608A KR1020110049895A KR20110049895A KR20120131608A KR 20120131608 A KR20120131608 A KR 20120131608A KR 1020110049895 A KR1020110049895 A KR 1020110049895A KR 20110049895 A KR20110049895 A KR 20110049895A KR 20120131608 A KR20120131608 A KR 20120131608A
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South Korea
Prior art keywords
braking
vehicle
smart booster
key
smart
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KR101904710B1 (en
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김도군
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현대모비스 주식회사
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    • 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
    • B60T8/171—Detecting parameters used in the regulation; Measuring values used in the regulation
    • 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
    • B60T13/00—Transmitting braking action from initiating means to ultimate brake actuator with power assistance or drive; Brake systems incorporating such transmitting means, e.g. air-pressure brake systems
    • B60T13/10—Transmitting braking action from initiating means to ultimate brake actuator with power assistance or drive; Brake systems incorporating such transmitting means, e.g. air-pressure brake systems with fluid assistance, drive, or release
    • B60T13/66—Electrical control in fluid-pressure brake systems
    • B60T13/68—Electrical control in fluid-pressure brake systems by electrically-controlled valves
    • B60T13/683—Electrical control in fluid-pressure brake systems by electrically-controlled valves in pneumatic systems or parts thereof
    • 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
    • B60T13/00—Transmitting braking action from initiating means to ultimate brake actuator with power assistance or drive; Brake systems incorporating such transmitting means, e.g. air-pressure brake systems
    • B60T13/74—Transmitting braking action from initiating means to ultimate brake actuator with power assistance or drive; Brake systems incorporating such transmitting means, e.g. air-pressure brake systems with electrical assistance or drive
    • B60T13/745—Transmitting braking action from initiating means to ultimate brake actuator with power assistance or drive; Brake systems incorporating such transmitting means, e.g. air-pressure brake systems with electrical assistance or drive acting on a hydraulic system, e.g. a master cylinder
    • 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
    • B60T8/34—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 having a fluid pressure regulator responsive to a speed condition
    • B60T8/36—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 having a fluid pressure regulator responsive to a speed condition including a pilot valve responding to an electromagnetic force
    • B60T8/3615—Electromagnetic valves specially adapted for anti-lock brake and traction control systems
    • B60T8/363—Electromagnetic valves specially adapted for anti-lock brake and traction control systems in hydraulic systems
    • 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
    • B60T8/34—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 having a fluid pressure regulator responsive to a speed condition
    • B60T8/40—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 having a fluid pressure regulator responsive to a speed condition comprising an additional fluid circuit including fluid pressurising means for modifying the pressure of the braking fluid, e.g. including wheel driven pumps for detecting a speed condition, or pumps which are controlled by means independent of the braking system
    • B60T8/4072—Systems in which a driver input signal is used as a control signal for the additional fluid circuit which is normally used for braking
    • B60T8/4081—Systems with stroke simulating devices for driver input
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60Y—INDEXING SCHEME RELATING TO ASPECTS CROSS-CUTTING VEHICLE TECHNOLOGY
    • B60Y2400/00—Special features of vehicle units
    • B60Y2400/30—Sensors
    • B60Y2400/306—Pressure sensors

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  • Engineering & Computer Science (AREA)
  • Transportation (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Electromagnetism (AREA)
  • Braking Systems And Boosters (AREA)

Abstract

본 발명은 차량의 키 온(key on) 전에도 전후륜 제동 제어가 가능하게 함으로써 안전성 향상을 기대할 수 있는 차량용 스마트 부스터의 제동 제어 방법에 관한 것으로, 스마트 부스터의 슬립모드(sleep mode)에서 BLS(Brake light signal)신호가 인에이블되면 ECU에 최소전원을 공급하여 웨이크업모드(wake up mode)로 전환하는 단계; 페달 스트로크 센서로부터 입력된 페달변위값이 기준값을 초과하면 키 온(key on) 여부를 판단하는 단계; 및 상기 키 온 여부에 따라 전원제한동작모드로 진입 또는 노멀모드로 진입하여 상기 스마트 부스터의 제동을 제어하는 단계;를 포함하는 것을 특징으로 한다.BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a braking control method of a smart booster for a vehicle, which can expect safety improvement by enabling front and rear wheel braking control even before a key on of a vehicle. switching to a wake up mode by supplying minimal power to the ECU when the signal is enabled; Determining whether a key is on when the pedal displacement value input from the pedal stroke sensor exceeds a reference value; And controlling the braking of the smart booster by entering the power limiting operation mode or the normal mode according to whether the key is on.

Description

차량용 스마트 부스터의 제동 제어 방법{METHDOD FOR CONTROLLING BRAKE OF SMART BRAKE BOOSTER IN VEHICLE}Brake control method of vehicle smart booster {METHDOD FOR CONTROLLING BRAKE OF SMART BRAKE BOOSTER IN VEHICLE}

본 발명은 차량용 스마트 부스터의 제동 제어 방법에 관한 것으로, 더 상세하게는 차량의 키 온(key on) 전에도 전후륜 제동 제어가 가능하게 함으로써 안전성 향상을 기대할 수 있는 차량용 스마트 부스터의 제동 제어 방법에 관한 것이다.
The present invention relates to a braking control method of a smart booster for a vehicle, and more particularly, to a braking control method of a smart booster for a vehicle that can be expected to improve safety by enabling front and rear wheel braking control even before a key on of the vehicle. will be.

일반적으로 차량의 제동장치는 주행중의 차량을 감속 또는 정지시킴과 동시에 주차상태를 유지하기 위해 사용되는 장치이다. In general, a vehicle braking device is a device used to maintain a parking state while decelerating or stopping a vehicle while driving.

이러한 차량의 제동장치는 크게 주행중에 차량의 감속 및 정지를 위해 사용되는 주 브레이크와 차량을 주차상태로 유지하기 위한 주차 브레이크로 분류된다.The braking device of such a vehicle is largely classified into a main brake used for decelerating and stopping the vehicle while driving and a parking brake for keeping the vehicle parked.

주 브레이크는 운전자가 페달을 밟을 때 발생하는 답력(踏力)을 각 차륜에 전달하는 기구에 따라, 기계식과 유압식 및 공기식으로 분류되며, 이중 유압식의 브레이크가 제동력이 모든 바퀴에 균등하게 전달되어 마찰손실이 적고 조작력을 적게 할 수 있는 등의 장점으로 인해 가장 널리 쓰이고 있다.The main brake is classified into mechanical, hydraulic and pneumatic according to the mechanism that transmits the pedaling force generated when the driver presses the pedal to each wheel, and the dual hydraulic brake provides friction by equally transmitting the braking force to all the wheels. It is most widely used due to its advantages such as low loss and low operating force.

유압식 브레이크는 이용자가 브레이크페달을 밟을 때 발생하는 답력을 직접 각 바퀴로 전달하는 직접식과, 진공에 의한 부압(負壓) 또는 공기압을 이용해 페달의 답력을 배력(培力)하여 각 바퀴로 전달하는 배력식이 있으며, 이중 배력식의 제동장치는 상대적으로 작은 힘으로써 큰 제동력을 발휘할 수 있어 근래에 들어 그 채용이 보편화되고 있다.
The hydraulic brake is a direct type that directly transmits the pedaling force generated when the user presses the brake pedal to each wheel, and a pedaling force is transmitted to each wheel by using negative pressure or air pressure by vacuum. There is a double-powered type, and the double-powered brake system can exert a large braking force with a relatively small force, and its adoption has become commonplace in recent years.

상기한 기술구성은 본 발명의 이해를 돕기 위한 배경기술로서, 본 발명이 속하는 기술분야에서 널리 알려진 종래기술을 의미하는 것은 아니다.
The technical structure described above is a background technique for assisting the understanding of the present invention, and does not mean the prior art widely known in the technical field to which the present invention belongs.

본 발명은 스마트 부스터 제동 시스템에서 차량의 키 온(key on) 전에도 전,후륜 제동 제어가 가능하게 함으로써 안전성 향상을 기대할 수 있는 차량용 스마트 부스터의 제동 제어 방법을 제공하는데 그 목적이 있다.
An object of the present invention is to provide a braking control method for a smart booster for a vehicle that can be expected to improve safety by enabling front and rear wheel braking control even before a key on of the vehicle is performed in the smart booster braking system.

본 발명은 차량용 스마트 부스터의 제동 제어 방법은, 스마트 부스터의 슬립모드(sleep mode)에서 BLS(Brake light signal)신호가 인에이블되면 ECU에 최소전원을 공급하여 웨이크업모드(wake up mode)로 전환하는 단계; 페달 스트로크 센서로부터 입력된 페달변위값이 기준값을 초과하면 키 온(key on) 여부를 판단하는 단계; 및 상기 키 온 여부에 따라 전원제한동작모드로 진입 또는 노멀모드로 진입하여 상기 스마트 부스터의 제동을 제어하는 단계;를 포함하는 것을 특징으로 한다.The braking control method of a smart booster for a vehicle includes switching to a wake-up mode by supplying a minimum power to the ECU when a brake light signal (BLS) signal is enabled in a sleep mode of the smart booster. Making; Determining whether a key is on when the pedal displacement value input from the pedal stroke sensor exceeds a reference value; And controlling the braking of the smart booster by entering the power limiting operation mode or the normal mode according to whether the key is on.

본 발명에서, 상기 스마트 부스터의 제동을 제어하는 단계는 상기 키 온(key on) 상태가 아니면 상기 전원제한동작모드로 진입하는 단계; 상기 전원제한동작모드로 진입하면 밧데리 상태를 확인하는 단계; 및 상기 밧데리 상태가 상기 스마트 부스터 구동을 위한 최소 전원값 이상이면 설정된 전후륜 제동압으로 제동을 제어하는 단계를 포함하는 것을 특징으로 한다.In the present invention, the controlling of the braking of the smart booster may include: entering the power limiting operation mode when the key is on; Checking a battery state when entering the power limit operation mode; And if the battery state is equal to or greater than the minimum power value for driving the smart booster, controlling the braking with the set front and rear wheel braking pressures.

본 발명에서, 상기 설정된 전후륜 제동압으로 제동을 제어하는 단계는 차량정차상태를 확인하는 단계; 및 확인한 상기 차량정차상태에 따라 각각 설정된 전후륜 제동압으로 차량의 제동을 제어하는 단계; 및 경고등을 점등하는 단계;를 포함하는 것을 특징으로 한다.In the present invention, the controlling of the braking by the set front and rear wheel braking pressure includes: checking a vehicle stop state; And controlling braking of the vehicle with the front and rear wheel braking pressures respectively set according to the identified vehicle stop state. And lighting a warning light.

본 발명에서, 상기 키 온 신호가 입력되면 운전자의 요구제동력에 따라 제동을 수행하는 노멀모드로 진입하는 것을 특징으로 한다.In the present invention, when the key on signal is input, it enters the normal mode to perform braking according to the required braking force of the driver.

본 발명에서, 상기 최소전원은 상기 ECU의 마이컴 초기화를 위한 전원인 것을 특징으로 한다.In the present invention, the minimum power is characterized in that the power for the initial microcomputer initialization of the ECU.

본 발명에서, 상기 기준값은 페달 스트로크 센서의 오프셋값과 BLS변위값의 합인 것을 특징으로 한다.
In the present invention, the reference value is characterized in that the sum of the offset value and the BLS displacement value of the pedal stroke sensor.

상술한 바와 같이, 본 발명은 운전자가 차량의 키 온 전에 브레이크 페달을 밟은 후, 핸드 브레이크를 해제한 경우에도 전후륜 제동 동작이 수행되므로 특히 차량이 경사로에 정차되어 있는 경우 안전성 향상시킨다.
As described above, since the front and rear wheel braking operation is performed even when the driver presses the brake pedal before the key-on of the vehicle and releases the hand brake, the present invention improves safety especially when the vehicle is stopped on the slope.

도 1은 스마트 부스터 제동 시스템의 구성을 설명하기 위한 도면이다.
도 2는 본 발명의 일 실시예에 따른 차량용 스마트 부스터의 제동 제어 방법을 설명하기 위한 순서도이다.1 is a view for explaining the configuration of the smart booster braking system.
2 is a flowchart illustrating a braking control method of a smart booster for a vehicle according to an exemplary embodiment of the present invention.

이하, 실시예를 통하여 본 발명을 더욱 상세히 설명하기로 한다. 이들 실시예는 단지 본 발명을 예시하기 위한 것이며, 본 발명의 권리 보호 범위가 이들 실시예에 의해 제한되는 것은 아니다.Hereinafter, the present invention will be described in more detail with reference to Examples. These embodiments are only for illustrating the present invention, and the scope of rights of the present invention is not limited by these embodiments.

이 과정에서 도면에 도시된 선들의 두께나 구성요소의 크기 등은 설명의 명료성과 편의상 과장되게 도시되어 있을 수 있다. 또한, 후술되는 용어들은 본 발명에서의 기능을 고려하여 정의된 용어들로서 이는 사용자, 운용자의 의도 또는 관례에 따라 달라질 수 있다. 그러므로, 이러한 용어들에 대한 정의는 본 명세서 전반에 걸친 내용을 토대로 내려져야 할 것이다.In this process, the thicknesses of the lines and the sizes of the components shown in the drawings may be exaggerated for clarity and convenience of explanation. In addition, the terms described below are defined in consideration of the functions of the present invention, which may vary depending on the intention or custom of the user, the operator. Therefore, definitions of these terms should be made based on the contents throughout this specification.

도 1은 스마트 부스터 제동 시스템의 구성을 설명하기 위한 도면이다.1 is a view for explaining the configuration of the smart booster braking system.

도 1을 참고하면, 스마트 부스터 제동 시스템은 전후륜 제동압 형성을 위한 모터(1)와 메인 마스터 실린더(2), 운전자의 답력 형성을 위한 서브 마스터 실린더(3)와 페달 시뮬레이터(4), 유로 개폐를 위한 솔레노이드 밸브(5), 페달 스트로크 센서(6), 모터(1) 제어를 위한 ECU(7), 페달 시뮬레이터(8)와 레저버(9)를 포함한다.Referring to FIG. 1, the smart booster braking system includes a motor (1) and a main master cylinder (2) for forming front and rear wheel braking pressures, a sub master cylinder (3), a pedal simulator (4), and a flow path for driver's stepping force formation. And a solenoid valve 5 for opening and closing, a pedal stroke sensor 6, an ECU 7 for controlling the motor 1, a pedal simulator 8, and a reservoir 9.

이러한 스마트 부스터 제동 시스템은 키 온(key on) 신호가 입력되면 스마트 부스터 전원 입력 정상 확인 후 스마트 부스터로 메인전원을 공급하고, 시스템 입출력상태 정상 확인 후 모터(1) 위치를 초기화한 후 운전자의 요구제동력에 따라 동작을 수행한다.When the smart on booster braking system receives a key on signal, the main booster is supplied to the smart booster after the normal input of the smart booster power input. Perform the action according to the braking force.

이러한 스마트 부스터 제동 시스템은 운전자가 페달을 밟으면 페달 스트로크 센서(6)로부터 센싱한 페달변위값과 메인 마스터 실린더(2)와 서브 마스터 실린더(3)에 각각 설치된 압력센서(미도시)로부터 압력값을 입력받고, 입력된 페달변위값과 압력값을 통해 운전자의 요구 제동력을 결정하고, 결정된 운전자의 요구 제동력에 따라 모터(1)를 구동시켜 전후륜 제동을 수행한다.The smart booster braking system uses a pedal displacement value sensed by the pedal stroke sensor 6 and a pressure sensor (not shown) respectively installed at the main master cylinder 2 and the sub master cylinder 3 when the driver presses the pedal. The driver receives the input brake displacement value and the pressure value to determine the required braking force of the driver, and drives the motor 1 according to the determined requested braking force of the driver to perform front and rear wheel braking.

본 발명에서는 스마트 부스터 제동 시스템에서 차량의 키 온(key on) 전에도 전,후륜 제동 제어가 가능하도록 한 차량용 스마트 부스터의 제동 제어 방법을 제공하고자 한다.The present invention provides a braking control method for a smart booster for a vehicle that enables front and rear wheel braking control even before a key on of a vehicle in a smart booster braking system.

이를 위해, 차량의 키 온 전에 BLS(Brake light signal)신호가 인에이블되어 입력되면 ECU(7)에 마이컴 초기화를 위한 최소 전원을 공급하여 슬립모드에서 웨이크업모드로 전환시킨다.To this end, when a brake light signal (BLS) signal is enabled and input before the key-on of the vehicle, the ECU 7 supplies the minimum power for initializing the microcomputer to switch from the sleep mode to the wake-up mode.

그리고, 밧데리의 상태가 스마트 부스터 구동을 위한 최소 전원값 이상이면 차량의 정차상태에 따라 설정된 전후륜 제동압으로 스마트 부스터를 구동시켜 키 온 전에도 제동 동작이 가능하게 한다.If the state of the battery is equal to or greater than the minimum power value for driving the smart booster, the smart booster is driven by the front and rear wheel braking pressures set according to the stopped state of the vehicle to enable the braking operation even before the key-on.

이와 같은 차량용 스마트 부스터의 제동 제어 방법을 보다 구체적으로 설명하면 다음과 같다.The braking control method of the smart booster for the vehicle will be described in more detail as follows.

도 2는 본 발명의 일 실시예에 따른 차량용 스마트 부스터의 제동 제어 방법을 설명하기 위한 순서도이다.2 is a flowchart illustrating a braking control method of a smart booster for a vehicle according to an exemplary embodiment of the present invention.

먼저, 운전자가 차량에 탑승하여 키 온(key on)전에 브레이크를 밟고 핸드 브레이크를 해제하면 ECU(7)에 최소전원을 공급하여 스마트 부스터의 슬립모드를 웨이크업모드로 전환한다.First, when the driver boards the vehicle and brakes before the key on and releases the hand brake, the driver 7 supplies the minimum power to the ECU 7 to switch the sleep mode of the smart booster to the wake-up mode.

보다 상세히 설명하면, 스마트 부스터로 전원이 공급되지 않는 슬립모드(sleep mode)에서(S1) BLS(Brake light signal)신호가 인에이블되어 입력되면(S2,S3) ECU(7)에 최소전원을 공급하여(S4) 웨이크업모드(wake up mode)로 전환한다(S5).In more detail, when a BLS signal is enabled and input in a sleep mode in which power is not supplied to the smart booster (S1) (S1), minimum power is supplied to the ECU 7 (S2, S3). In operation S4, the device enters the wake up mode in operation S5.

여기서, 최소전원은 ECU(7)의 마이컴을 초기화할 수 있는 전원이다.Here, the minimum power source is a power source capable of initializing the microcomputer of the ECU 7.

이어서, 페달 스트로크 센서(6)로부터 페달변위값을 입력받는다(S6).Next, the pedal displacement value is input from the pedal stroke sensor 6 (S6).

이어서, 입력된 페달변위값이 기준값을 비교하여 페달변위값이 기준값을 초과하는지 판단한다(S7).Subsequently, it is determined whether the pedal displacement value exceeds the reference value by comparing the input pedal displacement value with the reference value (S7).

여기서, 기준값은 페달 스트로크 센서(6)의 오프셋값과 BLS변위값을 합한 값이다. Here, the reference value is a value obtained by adding the offset value of the pedal stroke sensor 6 and the BLS displacement value.

페달변위값이 기준값을 초과하면 이그니션 키 스위치(미도시)로부터 입력(S8)되는 신호를 통해 키 온(key on) 여부를 판단한다(S9). When the pedal displacement value exceeds the reference value, it is determined whether the key is on (S9) through a signal input from the ignition key switch (not shown) (S8).

키 온 여부 판단결과, 키 스위치로부터 입력되는 키 신호가 오프 상태이면 전원제한동작모드로 진입한다(S10).As a result of determining whether the key is on, if the key signal input from the key switch is in an off state, the apparatus enters the power limit operation mode (S10).

전원제한동작모드로 진입하면 밧데리 상태 정보를 입력받아(S11) 밧데리 상태를 확인한다(S12).Upon entering the power limit operation mode, the battery state information is input (S11) and the battery state is checked (S12).

밧데리 상태가 스마트 부스터 구동을 위한 최소 전원값 이상이면 차량정차상태를 확인하여 경사로를 판단한다(S13). If the battery state is more than the minimum power value for driving the smart booster to determine the slope by checking the vehicle stop state (S13).

여기서, 밧데리 상태가 최소 전원값 미만이면 경고등을 점등한다.Here, a warning light is turned on when the battery state is less than the minimum power value.

확인한 차량정차상태에 따라 설정된 전후륜 제동압으로 차량의 제동을 제어하고(S14) 경고등을 점등한다(S15). The braking of the vehicle is controlled by the front and rear wheel braking pressures set according to the checked vehicle stop state (S14), and the warning light is turned on (S15).

즉, 경사로별로 각각 설정된 전후륜 제동압으로 제동을 수행하도록 스마트 부스터를 구동시킨다.That is, the smart booster is driven to perform braking with the front and rear wheel braking pressures set for each ramp.

이어서, 키 스위치로부터 키 온 신호가 입력되면 운전자의 요구제동력에 따라 차량의 제동을 수행하는 노멀모드로 진입한다(S16). Subsequently, when the key on signal is input from the key switch, the vehicle enters a normal mode for braking the vehicle according to the required braking force of the driver (S16).

본 발명의 실시예에서는 운전자의 요구제동력에 따라 제동을 수행하는 노멀모드의 시컨스에 대한 상세한 설명은 생략한다.In the embodiment of the present invention, a detailed description of the sequence of the normal mode in which braking is performed according to the driver's required braking force is omitted.

정리하면, 본 발명은 차량의 키 온 전에 BLS신호가 인에이블되어 입력되면 ECU(7)에 마이컴 초기화를 위한 최소 전원을 공급하여 슬립모드에서 웨이크업모드로 전환하고, 밧데리의 상태가 스마트 부스터 구동을 위한 최소 전원값 이상이면 차량의 정차상태에 따라 설정된 전후륜 제동압으로 스마트 부스터를 구동시켜 키 온 전에도 제동 동작이 가능하도록 한다.In summary, when the BLS signal is enabled and input before the key-on of the vehicle, the present invention supplies the ECU 7 the minimum power for initializing the microcomputer, switches from the sleep mode to the wake-up mode, and the state of the battery drives the smart booster. If more than the minimum power value for the smart driving the front and rear wheel braking pressure set according to the stop state of the vehicle to enable the braking operation before the key on.

이와 같이 본 발명은 운전자가 차량의 키 온 전에 브레이크 페달을 밟은 후, 핸드 브레이크를 해제한 경우에도 전후륜 제동 동작이 수행되므로 특히 차량이 경사로에 정차되어 있는 경우 안전성 향상시킨다.
As described above, the present invention improves safety, especially when the vehicle is stopped on a slope because the front and rear wheel braking operation is performed even when the driver presses the brake pedal before the key-on of the vehicle and releases the hand brake.

상술한 바와 같이 본 발명은 도면에 도시된 실시예를 참고로 하여 설명되었으나, 이는 예시적인 것에 불과하며, 당해 기술이 속하는 분야에서 통상의 지식을 가진 자라면 이로부터 다양한 변형 및 균등한 타 실시예가 가능하다는 점을 이해할 것이다. 따라서 본 발명의 진정한 기술적 보호범위는 아래의 특허청구범위에 의해서 정하여져야 할 것이다.
While the present invention has been particularly shown and described with reference to exemplary embodiments thereof, it is to be understood that the invention is not limited to the disclosed embodiments, but, on the contrary, It is understandable. Accordingly, the true scope of the present invention should be determined by the following claims.

1 : 모터 2 : 메인 마스터 실린더
3 : 서브 마스터 실린더 4 : 페달 시뮬레이터
5 : 솔레노이드 밸브 6 : 페달 스트로크 센서
7 : ECU 8 : 페달 시뮬레이터
9 : 레저버1: motor 2: main master cylinder
3: submaster cylinder 4: pedal simulator
5: solenoid valve 6: pedal stroke sensor
7: ECU 8: Pedal Simulator
9: leisure

Claims (6)

스마트 부스터의 슬립모드(sleep mode)에서 BLS(Brake light signal)신호가 인에이블되면 ECU에 최소전원을 공급하여 웨이크업모드(wake up mode)로 전환하는 단계;
페달 스트로크 센서로부터 입력된 페달변위값이 기준값을 초과하면 키 온(key on) 여부를 판단하는 단계; 및
상기 키 온 여부에 따라 전원제한동작모드로 진입 또는 노멀모드로 진입하여 상기 스마트 부스터의 제동을 제어하는 단계;
를 포함하는 것을 특징으로 하는 차량용 스마트 부스터의 제동 제어 방법.
Switching to a wake up mode by supplying minimum power to the ECU when the BLS signal is enabled in the sleep mode of the smart booster;
Determining whether a key is on when the pedal displacement value input from the pedal stroke sensor exceeds a reference value; And
Controlling braking of the smart booster by entering a power limit operation mode or a normal mode according to whether the key is on;
Braking control method of a vehicle smart booster comprising a.
제 1 항에 있어서, 상기 스마트 부스터의 제동을 제어하는 단계는
상기 키 온(key on) 상태가 아니면 상기 전원제한동작모드로 진입하는 단계;
상기 전원제한동작모드로 진입하면 밧데리 상태를 확인하는 단계;
상기 밧데리 상태가 상기 스마트 부스터 구동을 위한 최소 전원값 이상이면 설정된 전후륜 제동압으로 제동을 제어하는 단계를 포함하는 것을 특징으로 하는 차량용 스마트 부스터의 제동 제어 방법.
The method of claim 1, wherein the controlling of the braking of the smart booster is
Entering the power limit operation mode when the key is not in the on state;
Checking a battery state when entering the power limit operation mode;
And controlling the braking with a set front and rear wheel braking pressure when the battery state is equal to or greater than a minimum power value for driving the smart booster.
제 2 항에 있어서, 상기 설정된 전후륜 제동압으로 제동을 제어하는 단계는
차량정차상태를 확인하는 단계;
상기 차량정차상태에 따라 각각 설정된 전후륜 제동압으로 차량의 제동을 제어하는 단계; 및
경고등을 점등하는 단계;를 포함하는 것을 특징으로 하는 차량용 스마트 부스터의 제동 제어 방법.
The method of claim 2, wherein the controlling of the braking by the set front and rear wheel braking pressures
Checking a vehicle stop state;
Controlling braking of the vehicle with front and rear wheel braking pressures respectively set according to the vehicle stopping state; And
Lighting a warning light; braking control method of a smart booster for a vehicle comprising a.
제 3 항에 있어서,
상기 키 온 신호가 입력되면 운전자의 요구제동력에 따라 제동을 수행하는 노멀모드로 진입하는 것을 특징으로 하는 차량용 스마트 부스터의 제동 제어 방법.
The method of claim 3, wherein
When the key on signal is input, the braking control method of the smart booster for a vehicle, characterized in that entering a normal mode to perform braking according to the driver's required braking force.
제 1 항에 있어서, 상기 최소전원은
상기 ECU의 마이컴 초기화를 위한 전원인 것을 특징으로 하는 차량용 스마트 부스터의 제동 제어 방법.
The method of claim 1, wherein the minimum power source
Braking control method of a smart booster for a vehicle, characterized in that the power supply for the initial microcomputer initialization of the ECU.
제 1 항에 있어서, 상기 기준값은
페달 스트로크 센서의 오프셋값과 BLS변위값의 합인 것을 특징으로 하는 차량용 스마트 부스터의 제동 제어 방법.

The method of claim 1, wherein the reference value is
A braking control method for a vehicle smart booster, characterized in that the sum of the offset value of the pedal stroke sensor and the BLS displacement value.

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CN115402237A (en) * 2022-09-20 2022-11-29 安徽江淮汽车集团股份有限公司 Dormancy and awakening control method of electric booster
CN116252726A (en) * 2022-12-19 2023-06-13 联创汽车电子有限公司 Method and device for waking up vehicle body control module

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CN116056963A (en) 2020-09-25 2023-05-02 汉拿万都株式会社 Automobile braking system

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JP3695186B2 (en) * 1998-12-21 2005-09-14 トヨタ自動車株式会社 Brake control device for vehicle
JP2002154414A (en) * 2000-11-20 2002-05-28 Bosch Braking Systems Co Ltd Electric drive brake device
JP4333252B2 (en) * 2003-07-14 2009-09-16 トヨタ自動車株式会社 Braking force control device for vehicle
JP2008009983A (en) * 2007-06-25 2008-01-17 Fujitsu Ten Ltd Electronic control unit and initialization method thereof

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN115402237A (en) * 2022-09-20 2022-11-29 安徽江淮汽车集团股份有限公司 Dormancy and awakening control method of electric booster
CN116252726A (en) * 2022-12-19 2023-06-13 联创汽车电子有限公司 Method and device for waking up vehicle body control module

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