A motor position angle processing method, device and motor driver

A technology of motor position and processing method, applied in the field of control, can solve problems such as vehicle jitter, motor gear tooth punching, etc., and achieve the effects of reducing mechanical impact, eliminating jitter, and suppressing sudden change in torque.

Active Publication Date: 2020-01-10
GREE ELECTRIC APPLIANCES INC
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Problems solved by technology

[0003] The main purpose of the present invention is to overcome the defects of the above-mentioned prior art, and provide a motor position angle processing method, device and motor driver to solve the problem that the motor of an electric vehicle may have gears beating teeth in the prior art, causing the whole vehicle to vibrate question

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  • A motor position angle processing method, device and motor driver
  • A motor position angle processing method, device and motor driver
  • A motor position angle processing method, device and motor driver

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[0024] In order to make the purpose, technical solution and advantages of the present invention clearer, the technical solution of the present invention will be clearly and completely described below in conjunction with specific embodiments of the present invention and corresponding drawings. Apparently, the described embodiments are only some of the embodiments of the present invention, but not all of them. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

[0025] It should be noted that the terms "first" and "second" in the description and claims of the present invention and the above drawings are used to distinguish similar objects, but not necessarily used to describe a specific sequence or sequence. It is to be understood that the data so used are interchangeable under appropriate circumstances such that the embo...

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Abstract

The invention provides a motor position angle processing method and device and a motor driver. The method comprises the steps of a signal obtaining step used for obtaining a detection angle signal ofa motor position angle which is detected by a position sensor currently and a first estimation angle signal which is obtained by conducting position angle processing last time, a calculation processing step used for conducting preset calculation processing on the obtained detection angle signal and first estimation angle signal to obtain a first processed signal and an angle estimation step used for conducting preset adjustment processing on the obtained first processed signal to obtained a current second estimation angle signal. By means of the technical scheme, abrupt change of the motor position angle can be eliminated, and thus abrupt change of torque is inhibited so that jitters can be eliminated.

Description

technical field [0001] The invention relates to the field of control, in particular to a method and device for processing a motor position angle and a motor driver. Background technique [0002] At present, with the rapid development of electric vehicles and electric buses, the research and development and market of new energy vehicles have become one of the sustainable development directions of the automobile industry. The focus of research on pure electric vehicles is the integrated control of the power system and the development of key components of the power system. When the main motor driver of electric vehicles and electric buses controls the operation of the vehicle, the transmission structure of the motor is basically a rigid connection. Compared with the mass of the vehicle, the rotor inertia of the motor is small, but the electromagnetic torque responds quickly. The phase, reverse phase, and low-speed feed phase will cause the phenomenon of gear toothing, resultin...

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H02P21/18
CPCH02P21/18
Inventor 胡余生牛高产刘敏通郭伟林
Owner GREE ELECTRIC APPLIANCES INC
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