A method, device, vehicle and storage medium for storing the initial position angle of a motor

Abstract

The invention discloses a method, a device, a vehicle and a storage medium for storing the initial position angle of a motor. Wherein, the method for storing the initial position angle of the motor comprises: after the motor controller is powered on, reading the initial position angle data of the internal memory; if the initial position angle data of the internal memory is abnormal, then reading the initial position angle data of the external memory; The initial position angle data of the external memory is successfully read, and the initial position angle data of the external memory is stored in the internal memory when the power is turned off at low voltage. The invention solves the problem that the initial position and angle data stored in the motor are easily lost, realizes the effect of effectively storing and protecting the initial position and angle data, and ensures the correctness of the initial position and angle of the motor in the entire life cycle.

Description

technical field [0001] Embodiments of the present invention relate to a permanent magnet motor control technology, and in particular, to a method, device, vehicle, and storage medium for storing an initial position angle of a motor. Background technique [0002] During the power-on and power-off cycle of the whole vehicle, the data stored in the motor controller can easily become invalid due to various reasons, resulting in data loss. For the permanent magnet synchronous motor controller, once the initial position angle information of the motor is lost, it will cause the motor to run out of control. , the vehicle cannot be driven. [0003] In order to avoid the loss of the initial position angle of the motor, many existing technologies focus on the detection method of the initial position angle, and rarely involve the storage and protection strategy of the initial position angle. The method is inefficient and has a high error rate. SUMMARY OF THE INVENTION [0004] The p...

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Problems solved by technology

[0002] During the power-on and power-off cycle of the whole vehicle, the data stored in the motor controller is easy to fail due to various reasons, resulting in data loss. For the permanent magnet synchronous motor controller, once the initial position angle information of the motor is lost, the motor will be out of control , the vehicle cannot be driven

[0003] In order to avoid the loss of the initial position angle of the motor, many existing technologies focus on the detection method of the initial position angle, rarely involve the storage and protection strategy of the initial position angle, lack a detailed description of the initial position angle storage strategy, and have the initial position angle write The problem of low efficiency and high error rate of the method

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