商用车多源TSC1报文请求的仲裁策略研究

Research on Arbitration Strategy for Multi-source TSC1 Message Requests in Commercial Vehicles

随着商用车智能化水平的逐步提升,整车配备的多种智能控制系统均有控制动力源或缓速器需求。通过研究J1939协议对多源TSC1报文请求的仲裁策略,发现当前发动机在车辆中所具有的动力源和缓速器双重身份对现有J1939协议仲裁策略提出了新的挑战。因此对J1939协议的策略进行改进,开发出了一种新的仲裁控制策略。测试结果表明,新策略实现了正确仲裁,即负扭矩请求优先,为整车TSC1控制系统的顶层设计提供了参考。

With the progressive enhancement of intelligent capabilities in commercial vehicles,the diverse intelligent control systems integrated into the vehicle necessitate the functionality to regulate both the propulsion source and the retarding mechanisms.By examining the arbitration strategy of J1939 protocol for handling multi-source TSC1 message requests,it was discovered that the engine's concurrent roles as power source and retarder in vehicles.This issue poses a new challenge to the arbitration strategy.As a result,the strategy of the J1939 protocol has been refined,leading to the creation of a new arbitration control strategy.The test results indicate that the new strategy achieves correct arbitration,which prioritizes negative torque requests.This study provides a reference for the top-level design of the vehicle TSC1 control system.