【摘要】 针对发动机控制器(ECU)软件的复用与集成问题,提出了μC/OS-Ⅲ操作系统任务管理机制与调度策略的改进方法。根据汽车开放系统架构(AUTOSAR)设计了新的μC/OS-Ⅲ操作系统实时内核,并移植于MPC5634发动机控制器上。测试结果表明,改进后的μC/OS-Ⅲ符合汽车开放系统架构规范,运行时序精确,能准确实现发动机的喷油正时与脉宽控制,发动机运行平稳。更多还原

【Abstract】 In order to promote the reusability and integration of the Electronic Control Unit( ECU) software, an improved method of task management and scheduling strategy for μC/OS-Ⅲ was proposed. A new Operating System( OS) μC/OS-Ⅲ was designed, which conformed to AUTOmotive Open Systems ARchitecture( AUTOSAR) standards and transplanted to MPC5634. Test results show that the modified μC/OS-Ⅲ agrees well with AUTOSAR OS specification, and the executing sequence is accurate. It can control the injecting time and pulse width accurately. The engine operates smoothly.更多还原