混合动力客车能量管理设计及硬件在环试验验证

Energy management design of hybrid buses and hardware verification in loop test

构建了混合动力客车的仿真模型,利用Cruise的实时仿真模块下载车辆模型至dSAPCE/Simulator作为整车的底层仿真平台。构建了基于stateflow的多模式整车能量管理控制策略,通过算法优化得到各模式最佳工作区域,从而确定多模式之间切换规则;利用自动代码生成技术生成代码并将其下载至TTC200控制器中,进行TTC200控制器与Simulator实时的硬件在环试验。试验结果与离线的仿真结果对比表明:整车控制策略的实时性较好,CAN总线通讯良好,减少了后续的实车调试周期。

A simulation model of electric hybrid buses was proposed, which is downloaded into the DSAPCE/Simulator using the Cruise real-time simulation modules as the simulation platform of the underlying vehicle model. Energy management control strategy based on the stateflow multi mode operation control algorithm was established. The optimized algorithm was used to acquire high efficiency working areas as the control rules among the different modes, which were downloaded into TTC200 controller through automatic code generation technique. Then real-time loop test was carried out between TTC200 controller and Simulator hardware platform. The results show that, compared with offline simulation, the vehicle control strategy has good performance in real-time control and CAN bus communication works well, which reduces the subsequent vehicle debug cycle.