Hybrid power car braking coordinated control system and control method thereof

A coordinated control system and hybrid power technology, which is applied in the direction of electric braking system, hybrid vehicle, braking safety system, etc., can solve the problem that the regenerative braking torque of the motor cannot exit braking as soon as possible, affecting the comfort of the brake pedal, Issues such as poor braking feel consistency

Inactive Publication Date: 2009-09-09
JILIN UNIV
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0009] 1. The precise adjustment of the hydraulic braking torque cannot be achieved through the traditional hydraulic valve, and the consistency of the braking feeling is poor;
[0010] 2. When adjusting the hydraulic braking

Method used

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  • Hybrid power car braking coordinated control system and control method thereof
  • Hybrid power car braking coordinated control system and control method thereof
  • Hybrid power car braking coordinated control system and control method thereof

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Embodiment Construction

[0062] The present invention is described in detail below in conjunction with accompanying drawing:

[0063] refer to figure 1 and Figure 9 , The purpose of the present invention is to solve the problem that the hybrid electric vehicle regenerative braking and hydraulic braking cannot be coordinated and controlled at present, and proposes a hybrid electric vehicle regenerative braking and hydraulic braking coordinated control system. figure 1 Shown in is a front-wheel drive parallel hybrid sedan with regenerative braking on the front axle only. The general technical control scheme proposed by the present invention is braking torque distribution control and anti-lock braking coordinated control. The proportion of the braking energy can be improved to improve the braking energy recovery rate; when the wheel appears to be locked, the proportion of the regenerative braking torque of the motor in the total braking torque can be reduced as quickly as possible to ensure the safety...

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Abstract

The invention discloses a hybrid power car braking coordinated control system and a control method thereof, aiming at overcoming the problem that regenerative braking moment and hydraulic braking moment of a hybrid power car in the prior art can not be controlled in a cooperative way. The system comprises an electronic braking maneuver subsystem, a coordinating controller (29), a hydraulic braking moment regulating subsystem and a regenerative braking moment subsystem; wherein, the coordinating controller (29) is respectively and electrically connected with the electronic braking maneuver subsystem, the hydraulic braking moment regulating subsystem and the regenerative braking moment subsystem. The coordinating controller (29) comprises a power control circuit (63), a memory (64), a coordinating controller slot (65), a sensor input signal processing circuit (67), a CAN signal processing circuit (68) and a central processing unit (CPU) (69) which is connected with all the parts by adopting a circuit connecting line (70). The invention also provides a method for coordinating and controlling the regenerative braking moment and the hydraulic braking moment.

Description

technical field [0001] The invention relates to a control system of a hybrid electric car, more specifically, it relates to a braking coordination control system of a hybrid electric car and a method for controlling regenerative braking and hydraulic braking by using the system. Background technique [0002] The search result of patent information shows that the following five patents are related to the present invention: [0003] 1. Chinese Patent Application No. 200680029974.6, Publication No. CN101242981A, published on August 13, 2008, entitled "Energy Regeneration in Hybrid Electric Vehicles with Hydraulic or Pneumatic Brakes" discloses a Method for regenerating energy during braking of a hybrid electric vehicle, allowing to optimize the utilization of the electric motor, when the braking device comprises at least one pressure reducing valve, with which the braking force applied by the driver is reduced according to the deceleration share of the electric motor dynamic p...

Claims

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Application Information

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IPC IPC(8): B60T13/60B60T7/06B60T13/68B60T13/122B60L7/26B60T17/18B60W10/18B60W10/08B60W20/00B60W30/18B60W10/188B60W10/192B60W30/09
Inventor 初亮张永生欧阳尚明利姚亮晁黎波郭建华房永孙万峰
Owner JILIN UNIV
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