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Control device and control method for vehicle compound braking system

A compound braking and control device technology, applied in electric braking systems, brakes, vehicle components, etc.

Active Publication Date: 2014-05-21
BOSCH AUTOMOTIVE PROD SUZHOU
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Easily blends motor braking torque and pressure braking torque

Method used

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  • Control device and control method for vehicle compound braking system
  • Control device and control method for vehicle compound braking system
  • Control device and control method for vehicle compound braking system

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Embodiment Construction

[0039] Embodiments of the present invention will be described in detail below with reference to the accompanying drawings, but the present invention is not limited to the illustrated and described embodiments.

[0040]The present invention is applicable to various vehicles, but only an electric vehicle is taken as an example. In the actual use of electric vehicles, there are front-wheel brakes and four-wheel brakes. In the present invention, only electric vehicles with four-wheel brakes are used as examples, especially those based on anti-lock braking systems (ABS). The electric vehicle compound braking system is used as an example to describe in detail. But the present invention is not intended to be limited thereto. It can be understood that the present invention is also applicable to electric vehicle composite braking systems based on other braking systems, such as electric vehicle composite braking systems based on ordinary braking systems, electronic stability systems (E...

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Abstract

The invention relates to a control device for a vehicle compound braking system. The control device comprises an electronic control unit, a resistance regulator and a motor controller, wherein the electronic control unit is used for controlling a pressure braking subsystem and a motor regenerative braking subsystem of the compound braking system; the resistance regulator is connected with a wheel hub motor loop of the motor regenerative braking subsystem; the motor controller is used for carrying out real-time control on a wheel hub motor and the resistance regulator; the electronic control unit is used for adjusting parameter values of a motor braking torque and transmitting a regulating command to the motor controller based on the variation of vehicle wheel speed and braking pressure so as to control the wheel hub motor and the resistance regulator, thus stable motor braking torque is kept when the braking pressure is at a first stage so as to realize stable recycle of electrical energy, while the motor braking torque linearly changes along with the braking pressure when the braking pressure is at a second stage, so that the motor regenerative braking subsystem is prevented from causing interference in the pressure braking subsystem. The invention further relates to a control method for the vehicle compound braking system.

Description

technical field [0001] The present invention relates to a vehicle composite braking system, in particular to a control device and a control method for a vehicle composite braking system, which controls pressure braking and motor regenerative braking, and performs stable energy recovery during the entire process of pressure braking , thereby saving energy. Background technique [0002] In the process of traditional car braking, friction braking is usually used to convert kinetic energy into frictional heat. However, with the accelerated development of electric vehicles in recent years, more people have tried to combine motor braking torque with traditional pressure braking such as hydraulic braking. It is combined with dynamic braking, especially anti-lock hydraulic braking (ABS), and recycles the electric energy generated during the braking process of the motor. This compound braking method has received increasing attention due to the partial recovery of energy. However, m...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B60L7/24B60T8/17
Inventor 杨昆赵一铂陆宇舟
Owner BOSCH AUTOMOTIVE PROD SUZHOU
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