摘要
针对高原环境下车辆起步困难的问题,对整车发动机与传动装置的匹配特性进行了分析,得出高原环境下空气稀薄、发动机低速段扭矩降低是造成车辆起步困难的根本原因,并提出了改善起步时发动机扭矩特性的控制策略.通过试验验证,该控制方法切实可行,且具有无需改变车辆机械结构、实施简便的优点.
To solve the starting difficulty of vehicles in plateau,a study on the matching character of engine and transmission was conducted.Analysis showed that the extremely rarefied air in plateau was the essential cause fo the problem,which made the torque of engine decreasing rapidly in a low speed.Based on the analysis,a control method was proposed to improve the torque characteristics in engine starting process. The experiments verified that the control method was feasible and very convenient for implementation.Meanwhile,there was no need to change the vehicle mechanical structure.
出处
《车辆与动力技术》
2015年第1期24-26,共3页
Vehicle & Power Technology
关键词
车辆
起步
动力传动
高原
vehicle
starting
power trainsmission
plateau
