Motor torque control method, system and equipment and storage medium

Abstract

The embodiment of the invention discloses a motor torque control method, system and equipment and a storage medium. The motor torque control method comprises the steps of obtaining a rotation speed ofa motor of a vehicle and a pedal voltage of the vehicle in real time; when the rotation speed is less than or equal to a first rotation speed, adjusting a given torque current of a motor controller in real time according to a preset proportionality coefficient and the pedal voltage; and when the rotation speed is larger than the first rotation speed, adjusting the given torque current of the motor controller in real time according to the pedal voltage so as to improve the sensitivity of the torque control of the motor.

Description

Technical field [0001] The invention relates to the field of motor control, and in particular to a method, system, equipment and storage medium for motor torque control. Background technique [0002] In recent years, the new energy automobile industry has developed rapidly under the strong support of the national government. The main drive motor and its control system of new energy vehicles are the key components of the vehicle powertrain. The torque control performance of the main drive motor directly affects the driving experience, and the torque command current planning in the motor control directly affects the acceleration Experience and manipulation experience. [0003] Under different working conditions of new energy vehicles, such as starting, climbing, high-speed cruise, etc., the main drive motor may run in the constant torque area and constant power area. In conventional control, when the motor is running in the constant torque zone, the pedal depth of the car has a lin...

AI Technical Summary

Problems solved by technology

In conventional control, when the motor is running in the constant torque area, the car pedal depth is linearly related to the motor torque command; when the vehicle running speed increases and reaches the constant power area, due to the limitation of the motor overload capacity, the motor must output torque Limit it so that the heating power of the motor is within a safe range to prevent the motor from burning out; and if the torque is simply limited, the controllable range of the pedal will become smaller during high-speed operation, that is, when the pedal is depressed at a small angle, it has already reached the operation Torque limit output in state

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