应用GT-Power和Simulink软件建立了涡轮增压柴油机的动态模型和联合仿真平台，提出了“自然特性和恒转速”组合方式的测功机加载方式，对高原环境下柴油机瞬态过程进行模拟分析。通过不同的加载条件，分析了柴油机在加速过程中瞬态响应性差的影响因素，研究发现发动机转速和喷油量是影响涡轮增压器响应性的两个重要参数。先快速提升发动机转速，增加进气量，然后恒速加载能够克服增压器滞后现象，快速达到发动机的高负荷状态。应用这种仿真模拟方法，为车辆高原起步过程施加扭矩干预改变发动机运行工况，改善起步响应性提供依据。

The dynamic model and joint simulation platform of turbocharged diesel engine was established by using GT-Power and Simulink software. The dynamometer loading mode of natural characteristics and constant speed combination was proposed to simulate and analyze the transient process of diesel engine in plateau environment. Through different loading conditions, the influencing factors of poor transient response of diesel engine during acceleration were analyzed. It was found that engine speed and fuel injection quantity were two important parameters affecting the response of turbocharger. By rapidly increasing the engine speed, increasing the air intake, and then loading at constant speed, the supercharger hysteresis could be overcome, and the high load state of engine hence can be quickly achieved. Accordingly, the simulation method could provide a reference for changing the engine operating conditions by torque intervention and improving the starting response of vehicle during the plateau starting process.