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本文根据装有液力机械自动变速器的汽车传动系统的动力传递过程和换档过程,建立相应的数学模型,编制相应的计算机程序,并对红旗CA—770轿车的最佳燃料经济性和动力性换档规律进行了模拟计算,其结果和试验基本相符。计算机模拟能为应用于汽车自动换档的微处理机系统提供最佳换裆模型,并能对最佳换档规律的研究提供可行途径, 另外,换档规律的计算机模拟,不但用于研究发动机和液力变扭器的匹配,而且还可以用来预测传动系参数对汽车性能的影响,以便使传动系匹配最佳化。
According to the power transmission process and shift process of automobile transmission system equipped with hydrodynamic automatic transmission, this paper establishes the corresponding mathematical model, compiles the corresponding computer program, and analyzes the optimal fuel economy and power of the Red Flag CA-770 sedan The shift schedule was simulated and the results were basically in accordance with the test. Computer simulation can provide the best crotch model for the microprocessor system applied to the automatic gear shift of the automobile and can provide a feasible way for the research of the optimal gear shift law. In addition, the computer simulation of the gearshift law can not only be used to study the engine And torque converter matching, but also can be used to predict the impact of powertrain parameters on vehicle performance in order to optimize the drivetrain.