CAN总线在汽车智能换档系统中的应用

The Application of CAN Bus to the Vehicle Intelligent Shift System

汽车智能换档就是使自动变速器具有人的智慧,能够完全自主地根据当前的行驶环境和驾驶员的个性意愿来换档,这是今后自动变速技术发展的方向。介绍CAN总线的特点,分析CAN总线结构在汽车智能换档系统中应用的意义,介绍基于CAN总线的智能换档系统结构和通信原则,分析自动变速器ECU、电喷发动机ECU和制动防抱死ECU中的报文内容以及基于CAN总线结构的汽车智能换档通信系统的数据流动结构。

The vehicle intelligent shift system aims at making the automatic transmission a significant value in terms of driver's feeling and expectation and it will be the developing trend of future automatic transmission.The advantages of CAN bus is discussed.The significance to apply the CAN bus to the vehicle intelligent shift system is analyzed and the structure to apply the CAN bus to the vehicle intelligent shift system is presented.Also,the message structures of the automatic transmission ECU,the engine ECU and the ABS ECU are analyzed in detail and the message structure of the intelligent shift system based on the CAN bus is presented..