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动力性和经济性是汽车的重要评价指标,而汽车传动系的传动比是决定汽车动力性和经济性的关键,文中以加速时间和六工况循环使用油耗作为衡量动力性和燃油经济性的两个分目标,建立了汽车动力性和经济性双目标函数下的传动系传动比的优化模型,利用Matlab的优化模块对传动系传动比进行优化,使发动机与传动系合理匹配,改善汽车的经济性和动力性。
Power and economy are the important evaluation indexes of the car. The transmission ratio of the car driveline is the key to determine the dynamic and economic performance of the car. In this paper, the fuel consumption of the automobile is measured as the acceleration time and the fuel consumption of the six working conditions as a measure of power and fuel economy Two sub-objectives, the optimal model of the transmission ratio under the dual-objective function of automobile dynamics and economy is established. The optimization module of the transmission system is optimized by using the optimization module of Matlab, so that the engine and transmission are reasonably matched, Economic and dynamic.