CN201116074Y - A hybrid vehicle powered by an in-wheel motor front drive engine rear drive - Google Patents

Abstract

The utility model discloses a hybrid electric vehicle which is driven by the front of the engine and the rear of the wheel hub motor. A hub motor is arranged inside the wheel, and the hub motor is connected to a power battery and a motor controller. The utility model adds a rear wheel device directly driven by the hub motor on the basis of the traditional 4×2 automobile, which not only realizes 4×4 full drive, but also realizes hybrid power, which can realize both fuel consumption and exhaust emission. Smaller than a traditional car with 4×2 drive. Since there is only one front drive axle, the layout of the whole vehicle is simple and the structure is simple. It is estimated that the cost increase of the whole vehicle is similar to that of a mechanical 4×4 full drive. The fuel consumption and tail gas emission can be reduced by 20% to 30% compared with the original model, and at the same time, the power loss of the hybrid vehicle coupled with the prime mover can be avoided.

Description

A hybrid vehicle powered by an in-wheel motor front drive engine rear drive

technical field

The utility model belongs to vehicles, in particular to a hybrid electric vehicle driven by an engine at the front and driven by a hub motor at the rear.

Background technique

Existing hybrid vehicles mostly adopt electric drive and engine drive. The power output by the motor and the engine share a set of transmission devices, which increases the requirements for power coupling. The power coupling requirements are high and the structure is relatively complicated.

Contents of the invention

The purpose of the utility model is to provide a hybrid electric vehicle in which the hub motor is driven in front and the engine is driven in the rear.

The technical scheme of the utility model is: a hybrid vehicle driven by the hub motor in the front and the engine behind, which includes a car body, a steering mechanism, a braking device, an engine and a transmission, and the output ends of the engine and the transmission are connected to the rear wheel axle. A hub motor is arranged inside the front wheel, and the hub motor is connected to a power battery and a motor controller.

. This patent adds a set of front wheel devices directly driven by hub motors on the basis of traditional 4×2 vehicles, which not only realizes 4×4 full drive, but also realizes hybrid power, which can achieve fuel consumption and exhaust emissions less than 4×2 drive conventional car. Since there is only one rear drive axle, the layout of the whole vehicle is simple and the structure is simple. It is estimated that the cost increase of the whole vehicle is similar to that of a mechanical 4×4 full drive. Fuel consumption and exhaust emissions can be reduced by 20% to 30% compared with the original model. The utility model patent is composed of a set of traditional power drive device and a set of electric drive device, which are independent of each other in structure and have no mechanical connection. The control information between the engine, motor and power storage battery is transmitted through CAN bus communication. At the same time, the power loss of the driving force coupled hybrid vehicle during coupling is avoided.

Description of drawings

Fig. 1 Side view of hub motor front drive/engine rear drive hybrid vehicle.

Fig. 2 Schematic diagram of a hub motor front drive/engine rear drive hybrid vehicle.

Detailed ways

As shown in Figures 1 and 2, the car body of the hybrid electric vehicle is the same as the existing car body, and has mechanisms such as a steering mechanism and a braking device, and its structure is not repeated here. The output of the engine 1 is connected to the clutch 2, the clutch 2 is connected to the gearbox 3, the output of the gearbox 3 is connected to the transmission shaft 11, the other end of the transmission shaft is connected to the differential drive axle 10, and the output end of the differential drive axle 10 is connected to the rear wheel axle. The rear wheel axle connects the rear wheel 9. The hub motor 8 is connected to the front wheel 4, and the input of the hub motor 8 is connected to the power battery 7 and the motor controller 6. The vehicle controller 5 is used for controlling the vehicle.

The patented technology of the utility model consists of a set of traditional power drive device and a set of electric drive device, which are independent of each other in structure without mechanical connection, and transmit the control information between the engine, motor and power storage battery through CAN bus communication.

It is also possible to manually set the three drive modes of pure engine drive, pure motor drive and motor/engine hybrid drive front and rear wheels, which are realized by the vehicle controller. Therefore, the vehicle drive system has high reliability. When the car is in the hybrid driving mode, it can be manually set that when the vehicle speed is low (for example <10km/h), the car is only driven by the in-wheel motor, and when the vehicle speed is higher than the set value, the engine is controlled by the vehicle controller Ignite and start, and the hybrid drive vehicle accelerates. When the vehicle slows down, slides or brakes, the vehicle controller controls the motor controller, and the hub motor switches from electric to power generation, recovering part of the kinetic energy of the vehicle, and charging the power battery; when the battery When the management system detects that the remaining charge (SOC) of the power battery is too low, the vehicle controller can also switch the motor from electric to power generation, and the vehicle drives the hub motor to generate electricity, and automatically keeps the power battery (SOC) at a minimum. Fluctuates within the range; when the car is parked, the vehicle controller controls the engine to cut off the fuel, so it can save the fuel consumption when the car is parked and the engine is idling.

When the car is driving in the urban center with dense vehicles and population, it can be manually set to the pure electric drive mode, and the emission of the car is zero at this time. If the power battery capacity is appropriately increased, the Plug-In HEV (external charging type) hybrid power mode can be easily realized, and the hybrid power drive mode is only used when driving in the suburbs or long distances. When the electric drive system fails, the pure engine drive mode can be manually set, and at this time, the vehicle controller cuts off the electric drive circuit and the wheel hub motors run idly.

Claims (1)

1, by the hybrid vehicle of wheel hub motor before driving driving engine rear drive, it comprises car body, steering hardware, brake equipment, driving engine and driving device, the mouth of driving engine and driving device connects rear axle, it is characterized in that being provided with in the front-wheel wheel hub motor, wheel hub motor connects electrokinetic cell, electric machine controller.