主办：陕西省汽车工程学会
ISSN 1671-7988  CN 61-1394/TH
创刊：1976年
汽车实用技术

汽车实用技术 ›› 2026, Vol. 51 ›› Issue (4): 7-13,68.DOI: 10.16638/j.cnki.1671-7988.2026.004.002

• 电动化与核心系统性能优化 • 上一篇    

基于线控制动失效的整车制动力分配研究

邓德杰，胡卓，陈雯汐，张国正   

  1. 中汽研汽车检验中心（广州）有限公司
  • 发布日期:2026-02-28
  • 通讯作者: 邓德杰
  • 作者简介:邓德杰（1992－），男，硕士，工程师，研究方向为整车测试及开发
  • 基金资助:
    广东省重点领域研发计划项目（2023B0909040002）；公司重点项目课题（GZKY-20253C01006）

Research on Vehicle Braking Force Distribution Based on the Brake-by-Wire Failure

DENG Dejie, HU Zhuo, CHEN Wenxi, ZHANG Guozheng   

  1. CATARC Automotive Research and Inspection Center (Guangzhou) Company Limited
  • Published:2026-02-28
  • Contact: DENG Dejie

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摘要： 线控制动因其响应速度快、可控性好等优点，被广泛应用于新能源汽车。当线控制动 某一处或多处发生失效时，将会降低整车制动强度以及引发车辆跑偏等安全问题。文章通过 基于线控制动系统的特点，研究线控制动失效工况下整车制动力分配及控制方法，从传统制 动力分配出发，分别对线控制动单点和多点失效情况下的整车制动力学进行分析，提出了基 于线控制动系统整车制动力协调控制方法，进而降低制动失效时整车的横摆力矩，确保车辆 安全性和稳定性。

关键词: 线控制动；制动失效；横摆力矩；电动汽车；制动稳定性

Abstract: The brake-by-wire has the advantages of fast response speed and good controllability, and is widely used in new energy vehicles. When one or more of brake-by-wire fails, it will reduce the braking strength of the vehicle and cause the safety problem of the vehicle running off. Based on the characteristics of the brake-by-wire system, this paper studies the braking force distribution and control method of vehicle under the brake-by-wire failure condition. Starting from the traditional braking force distribution, the vehicle braking dynamics under single point and multi-point failure of the brake-by-wire is analyzed respectively, and the vehicle braking force coordination control method based on the brake-by-wire system is proposed to reduce the vehicle yaw moment and ensure the safety and stability of the vehicle when the brake failure occurs.

Key words: brake-by-wire; braking failure; yaw moment; electric vehicle; braking stability