集成式电子液压制动系统位移压力特性理论研究

doi:10.3901/JME.2022.22.294

机械工程学报 ›› 2022, Vol. 58 ›› Issue (22): 294-303.doi: 10.3901/JME.2022.22.294

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集成式电子液压制动系统位移压力特性理论研究

余卓平^1,2, 史彪飞^1,2, 卓桂荣^1,2, 熊璐^1,2, 舒强³

1. 同济大学汽车学院上海 201804;
2. 同济大学新能源汽车工程中心智能汽车研究所上海 201804;
3. 上海同驭汽车科技有限公司上海 201806

收稿日期:2021-12-05 修回日期:2022-04-28 出版日期:2022-11-20 发布日期:2023-02-07
通讯作者: 舒强(通信作者),男,1990年出生,硕士。主要研究方向为线控底盘系统设计、控制与产业化。E-mail:shuqiang@tongyuauto.com
作者简介:余卓平,男,1960年出生,博士,教授,博士研究生导师。主要研究方向为汽车系统动力学与控制。E-mail:yuzhuoping@tongji.edu.cn
基金资助:
国家重点研发计划(2021YFB2501201);上海市“科技创新行动计划”高新技术领域项目(20511104601)(1734)资助项目

Theoretical Research on Pressure-position Relationship of the Integrated Electronic-hydraulic Brake System

YU Zhuo-ping^1,2, SHI Biao-fei^1,2, ZHUO Gui-rong^1,2, XIONG Lu^1,2, SHU Qiang³

1. School of Automotive Studies, Tongji University, Shanghai 201804;
2. Intelligent Automotive Research Institute, New Clean Energy Automotive Engineering Center, Tongji University, Shanghai 201804;
3. Shanghai Tongyu Automotive Technology Co., Ltd., Shanghai 201806

Received:2021-12-05 Revised:2022-04-28 Online:2022-11-20 Published:2023-02-07

摘要/Abstract

摘要： 集成式电子液压制动系统（Integrated electro-hydraulicbrakesystem,IEHB）的位移压力特性对于现有的IEHB主缸压力控制算法及未来可期的主缸压力估计算法均至关重要，现有研究多以实测和曲线拟合为主，缺乏理论依据。为此，从含气制动液等效体积弹性模量和制动回路变形特性分析入手，首先基于合理假设，提出制动回路简化模型；之后通过由制动回路变形表示的等效体积弹性模量与制动液自身的等效体积弹性模量相等，推导出主缸活塞位移与压力的函数关系，即位移压力模型；最后通过台架试验对位移压力模型进行参数辨识和模型验证，结果表明，在0～10MPa的压力范围内，所提出的位移压力模型与试验数据的误差最大不超过0.255MPa。

关键词: 集成式电子液压制动系统, 位移压力特性, 等效体积弹性模量, 制动回路简化模型

Abstract: The pressure-position relationship of the integrated electro-hydraulic brake system（IEHB） is very important for the existing master cylinder pressure control algorithm and the future master cylinder pressure estimation algorithm of IEHB. Existing studies are mainly based on experiment and curve fitting, thus lack theoretical analysis. To this end, starting with the analysis of the equivalent volume elastic modulus of the air-containing brake fluid and the deformation characteristics of the brake circuit, a simplified model of the brake circuit is proposed firstly based on reasonable assumptions; then let the equivalent volume elastic modulus represented by the deformation of the brake circuit be equal to that of the brake fluid itself, and the functional relationship between the displacement of the master cylinder piston and the pressure is derived（i.e. pressure-position model）. Finally, parameter identification and model verification are carried out through bench test. The results show that in the pressure range of 0-10 MPa, the error between the proposed pressure-position model and the test data does not exceed 0.255 MPa at most.

Key words: integrated electro-hydraulic brake system, pressure-position relationship, equivalent volume elastic modulus, simplified model of the brake circuit

中图分类号:

U461

余卓平, 史彪飞, 卓桂荣, 熊璐, 舒强. 集成式电子液压制动系统位移压力特性理论研究[J]. 机械工程学报, 2022, 58(22): 294-303.

YU Zhuo-ping, SHI Biao-fei, ZHUO Gui-rong, XIONG Lu, SHU Qiang. Theoretical Research on Pressure-position Relationship of the Integrated Electronic-hydraulic Brake System[J]. Journal of Mechanical Engineering, 2022, 58(22): 294-303.

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集成式电子液压制动系统位移压力特性理论研究

Theoretical Research on Pressure-position Relationship of the Integrated Electronic-hydraulic Brake System

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