四轮独立驱动电动车控制系统FlexRay通信网络的设计与实现

Design and Implementation of FlexRay Communication Network for Four-Wheel Independent Drive Control System

摘要:

四轮独立驱动电动汽车控制系统对通信确定性有更高的要求。基于汽车总线开发V模式流程,从四轮独立驱动控制系统通信需求出发,设计其FlexRay通信网络;采用Network Designer生成网络数据库,导入到CANoe.FlexRay软件对网络进行了全仿真、半实物仿真,验证了所设计的FlexRay通信网络的协议参数的正确性,最后将该网络用于样车中;实验结果表明,所设计的FlexRay通信网络完全可用于四轮独立驱动电动车控制系统,具有较高的可靠性、确定性及实时性,能够满足控制系统的通信需求。

Abstract:

Four-wheel independent drive electric vehicle control system have higher requirements on certainty of communication. The FlexRay communication network was designed based on the vehicle bus development V pattern process and the needs of four-wheel independent drive control system communication. The network database was created by using the Network Designer, then it was imported to CANoe.FlexRay for network simulation and hardware-in-the-loop simulation, so the designed network was verified. Finally, the network was used in a prototype vehicle. Experiments results show that the designed FlexRay communication network can be used in four-wheel independent drive control system, and it has higher reliability and certainty, and it can satisfy the communication requirements of the control system.