混合动力汽车发动机辅助控制器接口设计

Interface Design of Engines Auxiliary Control Unit for Hybrid Electric Vehicle

发动机工作区域优化是实现混合动力车节能的重要手段,应用新一代车用嵌入式控制芯片,开发了混合动力车汽油机辅助控制器,设计了硬件接口包括发动机状态参数传感器输入信号处理模块、发动机直接起停及扭矩控制输出驱动模块和基于SAE J1939协议的CAN通讯模块等,为混合动力汽车主控制器和发动机控制之间提供了控制接口．试验结果表明,该控制器具有较高的数据处理能力和可靠性,硬件接口设计合理,响应速度快,满足混合动力总成对发动机控制的要求．

The key way for saving energy is to optimize the working range of the engine of a hybrid electric vehicle. The hardware interface of engine auxiliary control unit developed with advanced embedded control system is introduced. It includes four modules for engine status parameters signal input processing, engine direct start stop, torque controlling output driving and CAN communication, respectively. It offers a control interface between the hybrid electric vehicle main control unit and the SI engine control unit. The experiment results show that the engine auxiliary control unit has high data process performance and high reliability. The transient response is fast-paced. The hardware interface design is reasonable and can meet the requirements of engine control for the hybrid electric vehicle.