The invention discloses an electric automobile driving system which comprises a first driving mechanism and a second driving mechanism, wherein the first driving mechanism comprises a first driving motor and a gearbox with a fixed gear ratio, the gearbox with the fixed gear ratio is connected with one axle of an automobile, and the second driving mechanism comprises a second driving motor and a driven gear assembly connected with the other axle of the automobile. The electric automobile driving system provided by the invention is simple and reasonable in structure; a dual-motor time-sharing driving mode is adopted; a motor is installed on a front axle of the electric automobile and drives the front axle through the fixed-gear-ratio gearbox; a motor is additionally arranged on a rear axle of the electric automobile; the rear axle motor does not need a gearbox with a fixed gear ratio, and a rear axle motor driving shaft directly drives the rear axle of the automobile, so that the rear axle motor drives the automobile to run at a high speed at the most economical rotating speed when the electric automobile runs at a high speed; the purpose of saving electricity during high-speed running of the electric automobile is achieved; and the high-speed acceleration capacity and top speed of the electric automobile are improved.
本发明公开了一种电动汽车驱动系统,该系统包括第一驱动机构,所述第一驱动机构包括第一驱动电机以及固定齿比变速箱;所述固定齿比变速箱与汽车的其中一车轴相连;第二驱动机构,所述第二驱动机构包括第二驱动电机以及与汽车的另一车轴相连的从动齿轮组件。本申请提供的电动汽车驱动系统,结构简单合理,采用双电机分时驱动方式,在电动汽车前车轴安装电机用固定齿比变速箱驱动前车轴,在电动汽车的后轴加装一台电机,后轴电机不用固定齿比变速箱,后轴电机驱动轴直接驱动汽车后轴,让电动汽车在高速行驶时让后轴电机以最经济转速驱动汽车高速行驶,以达到电动汽车高速行驶省电的目的,提高电动汽车的高速加速能力和极速。
Electric automobile driving system
一种电动汽车驱动系统
2020-10-16
Patent
Electronic Resource
Chinese
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