基于模型开发的EHB系统应用层软件设计  

EHB system application layer software design based on model development

作　　者：李亚轮 黄波 卫玮 陈贺军 舒强 LI Yalun;HUANG Bo;WEI Wei;CHEN Hejun;SHU Qiang(Shanghai University of Engineering Science,Shanghai 201620,China;Shanghai Tongyu Automotive Technology Co.,Ltd.,Shanghai 201806,China)

机构地区：[1]上海工程技术大学,上海201620 [2]上海同驭汽车科技有限公司,上海201806

出　　处：《现代电子技术》2023年第4期119-124,共6页Modern Electronics Technique

基　　金：国家重点研发计划资助项目(2021YFA1500904)。

摘　　要：为提高集成式电子液压制动系统(EHB)中应用层软件设计的清晰度和效率,文中提出以模型开发的方式对集成式电子液压制动系统进行应用层软件设计。首先对EHB系统进行数据预处理和前期系统故障诊断;然后对驾驶员意图进行判别,通过解析驾驶员输入的踏板行程,计算主缸目标液压力。主缸液压力控制采用抗积分饱和PID控制算法,该模块输出目标扭矩,再将目标扭矩输入电机控制模块。永磁同步电机控制模块采用双闭环加最大扭矩电流比控制算法(MTPA),从而实现各模块算法的应用层软件设计。通过Matlab/Simulink中的分立模块与Stateflow模块生成主控芯片可执行的C代码文件嵌入工程中,进行软件集成并烧入控制器。最后搭建电机台架和EHB台架观测电机q轴电流和液压力开环、闭环响应,验证基于模型开发的EHB系统应用层软件设计的可行性。In order to improve the clarity and efficiency of application layer software design in integrated electro-hydraulic braking(EHB)system,an application layer software design of integrated EHB system is conducted in the model development mode. The data preprocessing and early fault diagnosis are carried out for the EHB system. Driver’s intention is judged,and the target hydraulic pressure of the master cylinder is calculated by analyzing the pedal stroke inputted by the driver. The anti-integral saturation PID control algorithm is adopted for the master cylinder hydraulic pressure control. In the permanent magnet synchronous motor control module,the double closed-loop plus maximum torque per ample(MTPA) control algorithm is used to realize the application layer software design of each module algorithm. The C code file that can be executed by the master control chip is generated by the Stateflow module and the discrete module in Matlab/Simulink and embedded into the project to perform the software integration,and then burned into the controller. The motor bench and EHB bench are built to observe the open-loop and closed-loop responses of motor q-axis current and hydraulic pressure,so as to verify the feasibility of the EHB system application layer software design based on model development.

关 键 词：电子液压制动系统 软件设计 模型开发 数据预处理 故障诊断 液压控制 模块设计 

分 类 号：TN876-34[电子电信—信息与通信工程]