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Method and device for determining orientation angle matched with zero setting locking current of motor

A determination method and current technology, applied in the field of determination method and device of orientation angle, can solve the problem of low efficiency of determination of orientation angle, and achieve the effects of fast acquisition, stable measurement accuracy, and low mitigation efficiency

Pending Publication Date: 2022-05-17
SUZHOU BLUE STONE NEW POWER CO LTD
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Problems solved by technology

[0004] The purpose of this application is to provide a method and device for determining the orientation angle of motor zero-adjustment lock current matching, so as to alleviate the technical problem of low efficiency in determining the orientation angle of motor zero-adjustment lock current matching in the prior art

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  • Method and device for determining orientation angle matched with zero setting locking current of motor
  • Method and device for determining orientation angle matched with zero setting locking current of motor
  • Method and device for determining orientation angle matched with zero setting locking current of motor

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Embodiment Construction

[0036] In order to make the purpose, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions of the present application will be clearly and completely described below in conjunction with the accompanying drawings. Obviously, the described embodiments are part of the embodiments of the present application, not all of them. the embodiment. Based on the embodiments in this application, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the scope of protection of this application.

[0037] The terms "including" and "having" mentioned in the embodiments of the present application and any variations thereof are intended to cover non-exclusive inclusion. For example, a process, method, system, product or device comprising a series of steps or units is not limited to the listed steps or units, but optionally also includes other unlisted steps or units, or optionally ...

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Abstract

The invention provides a method and a device for determining an orientation angle matched with zero-setting locking current of a motor, relates to the technical field of motors, and solves the technical problem of relatively low determination efficiency of the orientation angle matched with the zero-setting locking current of the motor in the prior art. The method comprises the following steps: acquiring a test instruction, and testing a to-be-tested motor through the test instruction to obtain rotating speed fluctuation data of the to-be-tested motor; and analyzing the rotating speed fluctuation data, determining a target rotating speed fluctuation point in the rotating speed fluctuation data, and determining a target angle corresponding to the target rotating speed fluctuation point as a directional angle matched with the zero setting locking current of the motor.

Description

technical field [0001] The present application relates to the field of electric motors, in particular to a method and device for determining an orientation angle of a motor zeroing and locking current matching. Background technique [0002] The field oriented vector control of the motor requires accurate rotor position detection. At present, most permanent magnet synchronous motors used in vehicles use position sensors installed on the rotor. After the position sensor is installed, zero calibration is required, often called zero adjustment. When zeroing, it is necessary to measure the orientation angle of the zero position first, for example, measure the orientation angle after locking the rotor with the orientation current, and then perform calibration. [0003] However, there is a technical problem of low determination efficiency in the existing method for determining the orientation angle of the motor zeroing and locking current matching. Contents of the invention [0...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01R31/34G01B21/22
CPCG01R31/346G01B21/22
Inventor 徐亚平陈锋
Owner SUZHOU BLUE STONE NEW POWER CO LTD
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