机械科学与技术2024，Vol.43Issue(6)：957-961,5.DOI:10.13433/j.cnki.1003-8728.20220301
泵控直驱式线控制动单元的设计与分析
Design and Analysis of Pump-controlled Direct-drive Brake-by-wire Unit
摘要
Abstract
In order to simplify the structure of the traditional automobile braking system and better meet the needs of intelligent networked vehicles for rapid adjustment of braking force,a pump-controlled direct-drive BBW unit is proposed,which adopts pump-controlled direct-drive volumetric servo technology,its motor directly drives the two-way gear pump to realize the control and rapid adjustment of the brake wheel cylinder pressure,eliminates the throttling loss of the valve control system,and effectively improves the system efficiency.Based on the parameter design and mathematical modeling of the pump-controlled direct-drive BBW unit,a prototype of the brake unit and a performance test platform are trial-produced,and the response curve and following characteristics of the wheel cylinder pressure change are analyzed.The simulation and test results prove the feasibility of the pump-controlled direct-drive BBW unit;the 12 MPa pressure step response time is 200 ms and the system has good response speed and stability,it provides a new implementation scheme for the BBW technology.关键词
汽车工程/直驱/电液伺服泵控/线控制动/压力控制Key words
automotive engineering/direct drive/electro-hydraulic servo pump control/brake-by-wire/pressure control分类
信息技术与安全科学引用本文复制引用
孙兆岳,谭草,李波,鲁应涛,徐浩力,于鹏..泵控直驱式线控制动单元的设计与分析[J].机械科学与技术,2024,43(6):957-961,5.基金项目
国家自然科学基金项目(51905319,51975341,51875326)、中国博士后科学基金项目(2021M691984)、山东省中央引导地方科技发展资金项目(YDZX20203700001177)及山东省青年科技人才托举工程项目(SDAST2021qt20) （51905319,51975341,51875326）
