混合动力车用汽油机的怠速问题

Study of Idling Operation in Gasoline Engine for Hybrid Electric Vehicle

开发混合动力电动汽车,是传统发动机汽车向零排放汽车过渡的有效途径。混合动力汽车在怠速工况下关闭发动机,避开了发动机工作不良的工况,可以降低油耗和减少排放。但是,目前由汽油车改造的混合动力车,若在怠速时关闭发动机将会带来一系列的问题。本文最后介绍了基于电子节气门的怠速控制方法。

Hybrid electric vehicle is an effective transition from traditional vehicle to zero emission vehicle. In idling process, hybrid vehicles shut down engine to avoid engine from poor operating conditions and reduce oil consumption and emissions. However, as to some hybrid electric vehicles transformed from gasoline vehicles, it will bring a range of issues if engine is shut down in idling process. This article introduces the method we used in the development of idle speed control system based on electric throttle.