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Extensible regenerative brake control system

A regenerative braking and control system technology, applied in electric braking systems, electric vehicles, transportation and packaging, etc., to avoid vehicle instability, improve recovery efficiency, and ensure vehicle safety

Inactive Publication Date: 2017-12-22
EASTONE AUTOMOTIVE TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0024] The purpose of the present invention is to provide an expandable regenerative braking control system to solve the problem of regenerative braking energy feedback torque, hydraulic regenerative braking torque, driver regenerative braking pedal feel, vehicle safety, and maximum energy feedback in the prior art. coordinated control problems

Method used

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  • Extensible regenerative brake control system
  • Extensible regenerative brake control system

Examples

Experimental program
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Effect test

Embodiment 1

[0065] Embodiment 1: Electric vehicle with anti-lock braking system + non-decoupling braking system + two-wheel drive system

[0066] The vehicle dynamics state S201 provides the working status bits of the anti-lock braking system and the electronic braking force distribution system. Once the anti-lock braking system or the electronic braking force distribution system is found to be working, the feedback torque will exit (realize the longitudinal force control distribution S207) On the contrary, it enters the process of confirming the magnitude of the feedback torque: first, the vehicle speed and vehicle deceleration are estimated by the control parameter estimation unit S204 according to the wheel speed signal provided by the anti-lock braking system, and the relevant estimation parameters are passed to the braking energy recovery The state observation terminal S101 in the model, then, the safety factor is provided by the state observation terminal and combined with the feedba...

Embodiment 2

[0067] Embodiment 2: An electric vehicle with vehicle body stability control system + decoupling braking system + four-wheel drive system

[0068] The vehicle dynamics status S201 provides working status bits for the body stability control system, anti-lock braking system and electronic brake force distribution system. Once the body stability control system, anti-lock brake system or electronic brake force distribution system is found to be , the feedback torque exits (realized in longitudinal force control distribution S207); otherwise, enters the process of confirming the size of the feedback torque:

[0069] 1. Estimate the vehicle speed through the control parameter estimation unit S204 according to the wheel speed signal provided by the vehicle body stability control system, the airbag module provides S303 vehicle deceleration and the corner signal provided by the electronic steering system, and pass the relevant parameters to the braking energy recovery model The state o...

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Abstract

The invention discloses an extensible regenerative brake control system. The system includes an electric-control regenerative brake module, a hydraulic regenerative brake module, a feedback torque actuator, a regenerative brake energy recovery model and a finished automobile dynamic state part, wherein the regenerative brake energy recovery model comprises a state observation end and a control end, the finished automobile dynamic state part, the state observation end, a longitudinal force control distribution part, the electric-control regenerative brake module and an air bag restraint system are compatible to and have reservation for extensible interfaces, and therefore control is achieved on the premise of ensuring that an original finished automobile framework is maintained to the greatest extent; the extensible regenerative brake control system is applicable to not only two-wheel / four-wheel driving systems but hydraulic pressure torque / feedback torque decoupling and non-decoupling regenerative brake systems; it is ensured that drivers can have a feeling similar to the feeling when using regenerative brake pedals of original vehicles, and therefore the vehicles can be prevented from losing balance to the greatest extent, and the recovery efficiency is increased; by using the longitudinal force control distribution part to feed back torque limiting values safely, the safety of the vehicles can be effectively ensured.

Description

technical field [0001] The invention relates to a braking control system, in particular to an expandable regenerative braking control system. Background technique [0002] Oil and natural gas are non-renewable resources, how to save energy and reduce emissions has become China's national policy. The vigorous development of new energy vehicles is one of the low-carbon technologies. Under the strong advocacy of the state, related industries and technologies are becoming more and more mature. [0003] The regenerative braking control function is a unique technology for new energy vehicles such as electric vehicles and hybrid vehicles. It can convert the kinetic energy of the vehicle during the regenerative braking process of the vehicle into electrical energy and store it in the power battery to further increase the cruising range. Compared with the traditional braking regenerative braking, the regenerative braking control function introduces the feedback torque, and the coord...

Claims

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Application Information

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IPC IPC(8): B60L7/18
CPCB60L7/18
Inventor 马凯张洋
Owner EASTONE AUTOMOTIVE TECH
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