基于驾驶员意图识别的电子液压制动助力系统控制策略  

Electronic hydraulic brake power system control strategy based on driver intention recognition

作　　者：王伟达[1,2] 武燕杰 史家磊 李亮[3,4] WANG Wei-da;WU Yan-jie;SHI Jia-lei;LI Liang(School of Mechanical Engineering,Beijing Institute of Technology,Beijing 100081,China;National Key Lab of Vehicular Transmission,Beijing Institute of Technology,Beijing 100081,China;National Key Laboratory of Automotive Safety and Energy,Tsinghua University,Beijing 100084,China;School of Vehicle and Mobile,Tsinghua University,Beijing 100084,China)

机构地区：[1]北京理工大学机械与车辆学院,北京100081 [2]北京理工大学车辆传动国家重点实验室,北京100081 [3]清华大学汽车安全与节能国家重点实验室,北京100084 [4]清华大学车辆与运载学院,北京100084

出　　处：《吉林大学学报（工学版）》2021年第2期406-413,共8页Journal of Jilin University:Engineering and Technology Edition

基　　金：国家自然科学基金项目(51575043,U1564210,U1764257)。

摘　　要：为在保证人车安全性的基础上给驾驶员带来更好的制动体验,根据制动主缸压力及压力变化率采用模糊推理对驾驶员制动意图进行识别,将制动意图分为常规减速和紧急制动,分别设计助力电流控制和主动压力控制两种策略,并进行实车验证。结果表明:压力主动控制模式下,制动主缸压力能迅速跟随目标压力;助力电流控制模式下,助力电流能较好地跟随目标电流;对比普通控制策略和本文控制策略在迅速踩下制动踏板时的压力曲线,后者能更快地完成制动主缸建压过程。In order to give the driver better braking experience on the basis of ensuring safety,the driver’s braking intention is identified according to the pressure of the brake master cylinder and the rate of pressure change. First,the braking intention is divided into conventional deceleration and emergency braking. Then,two control strategies,current closed-loop control and active pressure control,are designed respectively.The two control strategies were verified by real car experiments. The experimental results show that:under active pressure control mode,the brake master cylinder pressure can quickly follow the target pressure. In the current closed-loop control mode,the booster current can follow the target current well.Compared with the ordinary control strategy,the control strategies designed in this paper can complete the process of building the brake master cylinder faster.

关 键 词：车辆工程 电子液压制动 驾驶员制动意图识别 紧急制动 

分 类 号：U463.52[机械工程—车辆工程]