The invention discloses a driving anti-skid control method of an electric automobile and a dual-motor four-wheel-drive electric automobile. The driving anti-skid control method comprises the steps that the driving torque of a hub motor, the rotational inertia of wheels, the slip rate of the wheels, the angular velocity of the wheels and the rolling resistance torque of the wheels are obtained, and the hub motor and a road surface recognition controller are obtained; the wheel angular velocity of the automobile is calculated according to the driving torque of the hub motor, the rotational inertia of the wheel, the rolling resistance moment of the wheel and the radius of the wheel; according to the wheel angular velocity and the wheel radius, the wheel slip rate is calculated; the hub motor is a direct-current brushless permanent magnet motor. In the using process, no sensor needs to be additionally arranged, the wheel slip rate can be better controlled and subjected to follow-up control under the changing road surface attachment condition, the slip control effect on the wheels of the four-wheel electric vehicle is better, and the service life of the four-wheel electric vehicle is prolonged. And the stability of the four-wheel independent drive electric automobile can be kept in the accelerated running process.
本发明公开了一种电动汽车的驱动防滑控制方法及双电机四驱电动汽车,包括获取轮毂电机的驱动转矩、车轮转动惯量、车轮的滑转率、车轮角速度以及车轮滚动阻力矩以及轮毂电机和路面识别控制器;车轮角速度,根据轮毂电机的驱动转矩、车轮转动惯量、车轮滚动阻力矩和车轮半径,计算汽车的车轮角速度;根据车轮角速度、车轮半径,计算得出车轮滑转率;轮毂电机为直流无刷永磁电机。本发明在使用的过程中,不需额外增加传感器,能够在变化的路面附着条件下对车轮滑转率进行较优控制并对滑转率进行跟随控制,对四轮电动汽车车轮的滑转控制效果较佳,有利于四轮独立驱动电动汽车在加速行驶过程中完成稳定性的保持。
Driving anti-skid control method of electric automobile and double-motor four-wheel-drive electric automobile
一种电动汽车的驱动防滑控制方法及双电机四驱电动汽车
2023-01-20
Patent
Elektronische Ressource
Chinesisch
IPC: | B60W CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE OR DIFFERENT FUNCTION , Gemeinsame Steuerung oder Regelung von Fahrzeug-Unteraggregaten verschiedenen Typs oder verschiedener Funktion |
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