拖拉机双离合器自动变速器硬件系统设计  

Design of Hardware System of Tractor DCT Based on TMS320F28335

作　　者：徐立友[1] 游昆云 张俊香[2] 

机构地区：[1]河南科技大学车辆与交通工程学院,河南省洛阳市471003 [2]中国一拖集团有限公司一拖(洛阳)润滑油有限公司,河南省洛阳市471004

出　　处：《农业装备与车辆工程》2015年第4期6-10,共5页Agricultural Equipment & Vehicle Engineering

基　　金：河南省重点科技攻关计划基金项目(142102210424);河南省教育厅重点科技攻关计划基金项目(14B460015)

摘　　要：为实现拖拉机的自动变速功能,设计了拖拉机双离合器自动变速器(DCT)电控单元硬件系统。该控制系统是一种以数字信号处理器(Digital signal processor,简称DSP)TMS320F28335为核心的嵌入式开发系统。能够根据车载传感器监测到的数据来判断驾驶员的意图,经过数据的运算,发出控制命令,驱动换挡执行机构动作,实现自动变速,达到改善燃油经济性和动力性、提高作业效率的目的。对电源模块和信号处理模块进行仿真,结果表明:所设计的硬件电路在信号传输方面功能正常,为验证控制策略和控制程序正确性提供了良好的硬件基础。To implement automatic transmission function of tractors, the hardware system of electric control system of tractor DCT is designed. The control system is the embedded developing system based on Digital Signal Processor TMS320F28335. It can judge the driver＇s intention according to the data from the sensor installed in the tractor, and control the executive mechanism for automatic shift according to inner control program to improve fuel economy, power performance and operation efficiency. The results of the circuit simulation show that the function of the hardware system is normal in the aspects of signal transmission. The hardware system can validate whether it is right of the control strategy and the control program. It also can provide a good hardware foundation for the study in future.

关 键 词：拖拉机 双离合器 自动变速器 TMS320F28335 硬件系统 

分 类 号：S232.3[农业科学—农业机械化工程]