The invention discloses a pure electric tractor system, and belongs to the field of agricultural machinery. The power unit comprises a front PTO motor, a rear PTO motor, a driving motor, a hydraulic motor and a steering oil pump motor; the power distribution assembly comprises a battery system assembly A, a battery high-voltage power distribution BDU unit D and a power electronic PEU unit E which are connected in sequence; the power electronic PEU unit E is connected with a front PTO motor through a front PTO motor controller M and is also connected with a hydraulic motor through a hydraulic motor controller K; the vehicle control VCU unit V is in signal connection with the front PTO motor controller M, the gearbox control TCU unit O and the battery high-voltage distribution BDU unit D; the invention further provides a power management strategy of the pure electric tractor system. According to the strategy, the normal operation requirement of the whole vehicle can be met under the condition that the allowable discharge power of the battery is smaller than the use power of all parts, meanwhile, the battery system is protected, and power balance is achieved.

    本发明公开一种纯电动拖拉机系统,属于农用机械领域;该系统包括:动力单元,其包括前PTO电机、后PTO电机、驱动电机、液压电机和转向油泵电机;配电组件,其包括依次连接的电池系统总成A、电池高压配电BDU单元D和电力电子PEU单元E;所述电力电子PEU单元E通过前PTO电机控制器M与前PTO电机连接,还通过液压电机控制器K与液压电机连接;整车控制VCU单元V,其分别与前PTO电机控制器M、变速箱控制TCU单元O和电池高压配电BDU单元D信号连接;本发明还提供一种纯电动拖拉机系统的功率管理策略。本发明所述策略,可以在电池允许放电功率小于各零部件使用功率条件下,满足整车正常作业要求,同时保护电池系统、实现功率平衡。


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    Title :

    Pure electric tractor system and power management strategy


    Additional title:

    一种纯电动拖拉机系统及功率管理策略


    Contributors:
    YANG XIAOKUN (author) / LIU RONGPU (author)

    Publication date :

    2024-03-29


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Chinese


    Classification :

    IPC:    B60L PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES , Antrieb von elektrisch angetriebenen Fahrzeugen / B60K Anordnung oder Einbau von Antriebseinheiten oder von Kraft- bzw. Drehmomentübertragungen in Fahrzeugen , ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES / B60R Fahrzeuge, Fahrzeugausstattung oder Fahrzeugteile, soweit nicht anderweitig vorgesehen , VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR



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