The invention discloses an electric tractor double-motor transmission device and a control strategy thereof, and relates to the technical field of electric tractors, power is transmitted to a PTO output shaft (9-3) and an output shaft gear A (7-1) through a double-planet-row coupling mechanism (6), and a PTO output shaft brake (9-2), a gear ring brake (6-4) and an output shaft brake (7-3) are controlled to be locked and released, so that the double-motor transmission device of the electric tractor is achieved. The front-row planetary gear mechanism and the rear-row planetary gear mechanism can achieve convergence and shunting of power and torque of a PTO drive motor (4) and a power drive motor (5) through a double-planet-row shared gear ring (6-3), a high-low speed switching mechanism (8) achieves high-low speed switching by changing the gear transmission ratio to make up for the defect of motor speed regulation, and meanwhile a neutral position is set. The utilization rate of the motor is improved through confluence and shunt control of the motor, and the adaptability of the tractor is improved.

    一种电动拖拉机双电机传动装置及其控制策略,涉及电动拖拉机技术领域,本发明通过双行星排耦合机构(6)分别把动力传递给PTO输出轴(9‑3)和输出轴齿轮A(7‑1),通过操纵PTO输出轴制动器(9‑2)、齿圈制动器(6‑4)和输出轴制动器(7‑3)的锁止与释放,前排行星齿轮机构、后排行星齿轮机构通过双行星排共用齿圈(6‑3)能够实现PTO驱动电机(4)和动力驱动电机(5)功率和扭矩的汇流与分流,高低速切换机构(8)通过改变齿轮传动比实现高低速切换弥补电机调速的不足,同时设置空档位置;通过电机的汇流与分流控制提高了电机的利用率,增加了拖拉机的适应性。


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    Title :

    Dual-motor transmission device of electric tractor and control strategy of dual-motor transmission device


    Additional title:

    一种电动拖拉机双电机传动装置及其控制策略


    Contributors:
    XU LIYOU (author) / ZHANG YONGGANG (author) / LI TUANFEI (author) / LIU MENGNAN (author) / YAN XIANGHAI (author) / ZHAO SIXIA (author) / ZHAO YIRONG (author) / ZHANG JUNJIANG (author) / ZHANG JINGYUN (author)

    Publication date :

    2022-06-28


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Chinese


    Classification :

    IPC:    B60K Anordnung oder Einbau von Antriebseinheiten oder von Kraft- bzw. Drehmomentübertragungen in Fahrzeugen , ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES / B60L PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES , Antrieb von elektrisch angetriebenen Fahrzeugen



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