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Control system and method for vehicle pedal sense feedback based on decoupling brake system

A technology of automobile pedals and braking systems, applied in the direction of brakes, brake transmissions, vehicle components, etc., can solve the problems of rough hydraulic pressure adjustment, difficult service life, insufficient driver feedback, etc., to achieve extended service life, high Safety, effect of reducing extra load

Active Publication Date: 2018-08-28
ZHEJIANG ASIA PACIFIC MECHANICAL & ELECTRONICS
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Most products generally have problems such as rough hydraulic pressure adjustment, difficult service life, and insufficient feedback to drivers for different road conditions.

Method used

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  • Control system and method for vehicle pedal sense feedback based on decoupling brake system
  • Control system and method for vehicle pedal sense feedback based on decoupling brake system
  • Control system and method for vehicle pedal sense feedback based on decoupling brake system

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example

[0076] On low-attachment roads: The wheel cylinder lock-up pressure is generally low. If the driver brakes according to the conventional braking method, the sensor detects that the braking intention and the braking pressure demand are much higher than the actual need. If the driver does not prompt, he finds that The actual braking deceleration is lower than expected, and the pedal will continue to be stepped on deeply to increase the braking force and seek greater braking deceleration; Increase, pressure regulation accuracy decreases. At this time, the motor can be used to push the piston of the pedal simulator to simulate the trembling pedal feeling of ABS pushing the foot to the driver, so as to remind the driver that the vehicle is under the condition of ABS, and there is no need to continue to increase the brake pressure or reduce the brake pressure properly to achieve good performance. braking effect.

[0077] Insufficient braking deceleration: Vehicle intelligence has g...

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Abstract

The invention discloses a control system and method for vehicle pedal sense feedback based on a decoupling brake system. A brake pedal is connected with a brake master cylinder, the brake master cylinder is connected with an oil cup, a pedal simulator and a hydraulic adjustment unit, the hydraulic adjustment unit is connected with the oil cup, the hydraulic adjustment unit is connected to a brakewheel cylinder, the brake pedal is provided with a pedal displacement sensor, a brake control unit is connected with the pedal displacement sensor, a vehicle control unit, the hydraulic adjustment unit and the pedal simulator, and the brake control unit controls the pedal simulator to make a pedal sense feedback action, and controls the hydraulic adjustment unit to work in a conventional decoupling brake mode, an anti-collision decoupling brake mode or an ABS decoupling brake mode. The system performs pedal sense feedback under certain working conditions through interaction of driver foot stepping brake pedal and the pedal simulator, and maximizes recovery of braking energy; when there is a risk of collision, bumping deep pedal stepping feeling is fed back, potential danger is reminded, and the brake pressure is adjusted to avoid the risk of the collision.

Description

technical field [0001] The invention relates to an automobile control method, in particular to a control system and method for feedback of automobile pedal feel based on a decoupling braking system. Background technique [0002] Electric and intelligent cycling have become an important direction for the sustainable development of the automobile industry. With the vigorous development of electric and intelligent vehicles, more and more vehicles use fully decoupled braking systems to achieve energy recovery. , in order to increase the cruising range. [0003] The conventional fully decoupled energy recovery system pays more attention to the efficiency of braking energy recovery, and is not perfect for the service life of the product, the optimization of control methods, and the interaction with the driver. Most products generally have problems such as rough hydraulic pressure adjustment, difficult service life, and insufficient feedback to drivers for different road condition...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B60T13/12B60T13/66B60T7/06
CPCB60T7/06B60T13/12B60T13/66
Inventor 郭昊郑利水陈鹏飞陈园园姚兴娟
Owner ZHEJIANG ASIA PACIFIC MECHANICAL & ELECTRONICS
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