丰田卡罗拉汽车发动机DualVVT—I系统结构及控制功能

Dual VVT—I System and its Control Functions of Toyato Corlla Engine

卡罗拉汽车发动机采用Dual VVT-I系统,通过优化配气正时,使发动机在动力性、燃油经济性和排放等方面得到极大的改善;文章从该系统的主要部件的结构及工作原理入手,分析了该系统所实现的控制功能,为对该系统的检修提供分析与诊断思路。

Corolla engine using the Dual VVT-Ⅰ system, by optimizing the valve timing, the engine power, fuel economy and emissions to be greatly improved. The article analyzes the control functions of the system, from the structure of the main components of the system and working principle. And provide the analysis and diagnostic thinking of how to repair the system.