进气凸轮移相对发动机性能的影响分析

Study of the performance of engine based on intake cam phase shift principle

利用AMESim软件建立了春风152MI小型单缸内燃机模型,基于发动机原始数据对发动机模型参数进行了设置,并验证了模型的正确性;利用VVT凸轮移相原理改变模型中进气凸轮相位,研究其扭矩及功率的变化。结果表明:随转速的升高,进气迟闭角越大扭矩越大,功率也越大。

A small single-cylinder internal combustion engine model is built,by useing AMESim. The parameters are set based on the real engine, and the correctness of the mode is proved. By using the changing intake cam phase of the model based on VVT cam phase shift principle, the performance of torque and power is studied. The results show that, with the speed increasing, the larger intake lag angle makes the torque larger, and the the power is stronger.