基于仿真的汽车电子控制器软件开发方法研究

以车身控制系统中的车窗控制器和雨刮控制器为例,研究一种基于仿真及代码自动生成的汽车电子控制器软件的新型开发方法.利用Simulink/Stateflow建立汽车电子控制器算法模型,进行离线仿真验证和快速模型验证,然后通过RTW自动生成可执行的代码,最后可将自动生成的代码直接嵌入到控制器硬件中,实现了汽车电子控制系统的软件开发.通过与Simulink中仿真结果进行对比,验证了该方法的可行性和正确性.经过实践证明该开发模式可以大大缩短控制系统的开发周期,对于汽车电子系统的开发具有一定的实用价值.另外,在软件开发的各个阶段对设计功能进行测试验证,提高设计开发的正确性.

Development of Automotive Electronic Controller Software Based on Simulation Method

Taking the power window system and wiper control of an automobile as examples, a new-typed development method of the automotive electronic controller software was proposed, which incorporates the simulation and code generation techniques. The method employs the Simulink/Stateflow to establish controller algorithm models for offline simulation and fast verification, and generates an executable automotive code by RTW which can be directly embedded in the electric controller unit. The method was tested and verified to be feasible and accurate, by comparing with the simulation results of Simulink. It is proved that the development mode can greatly shorten the development cycle of the control system and has certain practical value for the development of automotive electronic control system. Moreover, the method allows validation testing being conducted in the early stage of development cycle. It greatly increases the correctness of the design and development.