Control method and device of driving motor, storage medium and new energy automobile

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Control method and device of driving motor, storage medium and new energy automobile

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WANG QI / LI SONG / CHEN XIAOFENG / QU DONGREN / XIE PENG / HUANG KAI

The invention provides a control method and device of a driving motor, a storage medium and a new energy automobile. The control method of the driving motor of the new energy automobile comprises the steps that the rotating speed change rate of the driving motor in a sampling period of the driving motor is obtained; comparing the obtained rotating speed change rate with a preset rotating speed change rate maximum threshold value; and when the obtained rotating speed change rate is not smaller than the preset rotating speed change rate maximum threshold value, the driving motor controller limits the current maximum usable torque to a preset torque threshold value, and reverse torque control is applied to the driving motor. According to the control method, the situation that mechanical devices such as the bridge gear in the automobile are impacted due to the abnormal rotating speed of the driving motor can be avoided, normal use of the automobile can be guaranteed, and the quality of the whole automobile can be improved.

本发明提供了一种驱动电机的控制方法、装置及存储介质和新能源汽车，本发明的新能源汽车驱动电机的控制方法包括获取驱动电机采样周期内的驱动电机的转速变化率；将获取的所述转速变化率与预设转速变化率最大阈值进行比较；以及，在获取的所述转速变化率不小于所述预设转速变化率最大阈值时，驱动电机控制器将当前最大可使用转矩限制在预设转矩阈值，并对所述驱动电机施加反向转矩控制。本发明的控制方法能够避免因驱动电机转速异常，对汽车中的电桥齿轮等机械器件造成冲击，能够保证汽车的正常使用，而有利于提升整车品质。