摘要
为了满足电动汽车电液复合制动系统的开发需求,基于SPI总线与CAN总线开发了系统控制器。控制器以双核MC9S12XDT512微处理器为核心,制订了芯片间以数据包为基本单位的数据传输协议。实验室台架试验结果表明数据采集实时性较强,通信频率为2MHz,满足实验要求;执行器驱动测试快速、平稳,可以迅速响应预设逻辑,为后续电液复合制动系统的可靠性分析及防抱死控制策略研究奠定基础。
In order to satisfy development requirements of electro-hydraulic composite braking system on the electric car, system controller is developed based on the SPI bus and CAN bus. According to the requirements of electro-hydraulic braking technology dual-core MC9S12XDT512 microprocessor is taken as the core controller of the system, establishing packets as the basic unit of data transmission protocol between the chips. Laboratory bench test results show that the real-time data acquisition is relatively strong , communication frequency of 2MHz can meet experimental requirements. The testing of actuator can rapidly response the default logic, laying the foundation for subsequent electric hydraulic reliability and anti-lock braking system control strategy research.
出处
《机电一体化》
2013年第7期26-29,92,共5页
Mechatronics
关键词
电液复合制动
架构设计
CAN总线
系统测试
electro-hydraulic composite brake architecture design CAN bus system testing
