The embodiment of the invention discloses an equivalent motor rotating speed observation method and device, equipment and a medium. The method comprises the steps that the motor torque of a vehicle motor is obtained through a vehicle control unit; inputting the motor torque into a pre-established Luenberger state observer, and determining an observation result of the equivalent motor rotating speed; wherein the state quantity of the Luenberger state observer is determined according to the operation parameters of the motor and the transmission system. According to the technical scheme, the rotation speed of the equivalent motor is observed through the Luenberger state observer, the observation result of the rotation speed of the equivalent motor is obtained, the observation result can reflect the rotation speed of the equivalent motor without phase delay, and the problem that phase delay exists when the rotation speed of the motor is obtained through a filtering mode in the prior art is solved; when torque compensation is carried out on the vehicle according to the equivalent motor rotating speed, the effect of rapidly and accurately restraining vehicle shaking is achieved, and the riding experience is improved.
本申请实施例公开了一种等效电机转速的观测方法、装置、设备及介质。其中,该方法包括:通过整车控制器获取车辆电机的电机扭矩;将电机扭矩输入至预先建立的龙伯格状态观测器,确定等效电机转速的观测结果;其中,所述龙伯格状态观测器的状态量根据电机和传动系统的运转参数确定。本技术方案通过龙伯格状态观测器观测等效电机转速,得到了等效电机转速的观测结果,该观测结果可以反映不存在相位延迟的等效电机转速,解决了现有技术中通过滤波的方式得到电机转速会存在相位迟滞的问题,在根据等效电机转速对车辆进行扭矩补偿时,达到了快速且精准地抑制车辆抖动的效果,提高了乘车体验。
Method, device and equipment for observing rotating speed of equivalent motor and medium
一种等效电机转速的观测方法、装置、设备及介质
2023-06-02
Patent
Electronic Resource
Chinese
IPC: | B60L PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES , Antrieb von elektrisch angetriebenen Fahrzeugen |
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