The invention discloses an inter-wheel and inter-axle electronic differential control system and method for an electric drive axle, and the system comprises a driving axle and a driven axle, and the sum of the power of the driving axle and the power of the driven axle is consistent with the power required by a vehicle when the demand of the vehicle is changed; the main driving motor is used for loading a torque control ring and carrying out torque current PI regulation control on the change of power shunting in the control system; the slave driving motor is used for feeding back and correcting the rotating speed control ring, and the rotating speed of the slave driving motor is used for verifying and correcting the rotating speed of the master driving motor; the torque control loop of the master drive motor is coupled with the torque control loop of the slave drive motor. By the adoption of the scheme, the problems of inter-axle differential speed, insufficient power, abnormal tire abrasion and the like of an existing new energy automobile can be solved or at least partially solved or optimized. The method is particularly suitable for inter-wheel and inter-axle electronic differential control of an electric drive axle of a heavy-duty commercial vehicle.
本发明公开电驱动桥的轮间及轴间电子差速控制系统及方法,包括主动桥和从动桥,在车辆改变需求的期间,主动桥和从动桥的功率之和与该车辆所需求的功率保持一致;主驱动电机用于负载转矩控制环,对该控制系统内的功率分流的变化进行转矩电流的PI调节控制;从驱动电机用于转速控制环的反馈及修正,从驱动电机的转速用于验证及修正主驱动电机的转速;主驱动电机的转矩控制环与从驱动电机的转矩控制环耦合。采用本发明所公开的方案,可以解决或至少部分的解决或优化了现有新能源汽车所存在的轴间差速、动力不足、轮胎异常磨损等问题。本发明尤其适用于重型商用车的电驱动桥的轮间及轴间电子差速控制。
Inter-wheel and inter-axle electronic differential control system and method for electric drive axle
电驱动桥的轮间及轴间电子差速控制系统及方法
2024-07-30
Patent
Electronic Resource
Chinese
Inter-axle differential, intermediate axle inter-axle differential assembly and vehicle
European Patent Office | 2022
|Viscous drive is inter-axle differential
Automotive engineering | 1986
|Inter-axle differential and method for operation of said inter-axle differential
European Patent Office | 2021
|INTER-AXLE DIFFERENTIAL AND METHOD FOR OPERATION OF SAID INTER-AXLE DIFFERENTIAL
European Patent Office | 2022
|