Application of CAN Bus in Low Speed Electrical Apparatus of Car Bodies

A CAN bus control system of low speed electrical apparatus of car bodes was developed in this paper,and their network control had been realized.A P87C591 chip of Philips company was introduced in the paper,and a CAN communication protocol was described,as well as the key point of design that realized the CAN communication by used SAEJ1939 communication protocol of low-speed electrical apparatus of vehicles was given.Meantime,the hardware and software of CAN control system had been constructed.The whole control system reduced the number of wire,to save the wiring space effectively.