Abstract

The communication principle of CAN (Controller Area Network) bus is introduced in detail. P87C591 is used as the microprocessor with CAN controller. The hardware and software of the high-speed and low-speed CAN bus networks are designed, in this paper, full active suspension control, engine control, airbag control, ASR/ABS/ESP control, traction control and transmission control are designed as high-speed CAN bus network and air-conditioning control, instrument control, wiper control, lighting control, window control and door control are designed as low-speed CAN bus network. The software of body network control node is designed. Data share is fully realized in network communication of body net work control system.

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