某车型高原动力性优化策略分析

The analysis of a vehicle power optimizing strategy in plateau

车辆在高原地区运行时发动机性能会明显下降,主要表现为动力性严重不足。为了提高发动机的高原环境适应性,需要对发动机的增压器进行优化匹配,调整供油提前角和最大循环供油量,从而恢复发动机在高原地区的动力。文章通过AVL-Boost软件对某车型发动机进行搭建,仿真分析采取涡轮增压器匹配优化和发动机高原供油策略优化的措施后,发动机高原动力性能够得到明显改善。

When the vehicle drived in the plateau,the engine performance will obviously decline.The main performance is insufficient power.The engine can regain the power in plateau after optimizing matching of turbocharger,adjusting fuel supply advanced angle and maximum cycle fuel feeding,so that the adaptability of engine can be improved.In this paper,AVL-BOOST software is used to build the engine model.It simulates that the power of engine in plateau is significantly improved after optimizing the turbocharger matching and the strategy of cycle fuel feeding.