发动机预热塞控制策略仿真研究

Study on Control Strategy of Preheating Plug Control Unit

在寒冷地区,冷起动是影响发动机性能的重要环节,通过预热塞加热缸内混合气是改善发动机冷起动性能的方法之一。探讨了预热塞加热的工作原理,提出了预热塞加热的控制策略。采用基于模型的软件开发方法设计了预热塞控制器(PCU)的控制算法,并通过测试用例验证了控制逻辑的正确性。经验证,设计的预热塞加热控制算法仿真结果符合设计要求。

In cold areas,cold starting is an important part affecting the performance of engines.Heating the mixture in the cylinder by preheating plugs is one of the methods to improve the performance of cold starting of engines.This paper discusses the operating principle of preheating plugs and puts forward the control strategy of them.The control algorithm of preheating plug control unit(PCU)is developed by the model-based software development method,and the correctness of the control logic is verified by a tested case.It is verified that the simulation results of the PCU algorithm have a good agreement with design requirement.