汽车整车模型，matlab可运行仿真，内包括整车动力性模块以及发动机变数箱选择模块。档位选择方式根据驱动力及速度联合判断加减档-Automobile model, matlab can run the simulation, including the vehicle power module and the engine variable box selection module. Gear selection mode according to the driving force and speed of the joint judgment and addition and subtraction