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Rotation angle detection method and device

A technology of rotation angle and detection method, applied in the field of measurement and control, can solve problems such as difficulty in bringing accurate control effects

Active Publication Date: 2020-07-07
UBTECH ROBOTICS CORP LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] The traditional angle detection method for the output shaft of the steering gear is usually to directly detect the rotation angle of the output shaft through the angle sensor installed on the output shaft of the steering gear. In this scheme, the error of the angle sensor itself will be directly introduced into the output In the control of the corner, it is difficult to bring precise control effect

Method used

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  • Rotation angle detection method and device
  • Rotation angle detection method and device

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Embodiment Construction

[0046] In order to make the purpose, technical solution and advantages of the present application clearer, the present application will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the present application, and are not intended to limit the present application.

[0047] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the technical field to which this application belongs. The terms used herein in the description of the application are only for the purpose of describing specific embodiments, and are not intended to limit the application. It can be understood that the terms "first", "second", etc. used in this application may be used to describe various elements herein, but these elements are not limited by these terms. These terms are o...

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Abstract

The embodiment of the invention discloses a method and device for detecting a rotation angle of a steering engine. The method comprises the following steps: calculating a rotation angle estimated value of a motor shaft in a rotation process according to a second rotation angle; determining the actual range of the rotation angle of the motor shaft according to the estimated value of the rotation angle in combination with the detection error of the second angle sensor; determining a rotation angle selectable value of the motor shaft based on the relative relationship between the first rotation angle and the rotation angle estimated value; determining the actual rotation angle of the motor shaft based on the value falling into the actual range of the rotation angle of the motor shaft in the rotation angle selectable value, and determining the actual rotation angle of the output shaft according to the actual rotation angle of the motor shaft. Through the method, the measurement precision of the rotation angle of the output shaft of the rotating mechanism can be improved, the influence on the overall error of the system caused by the precision error of the angle sensor is greatly reduced, and the output control of the rotating mechanism is more accurate.

Description

technical field [0001] The invention relates to the technical field of measurement and control, in particular to a method and device for detecting a rotation angle. Background technique [0002] The steering gear is a position (angle) servo drive, suitable for control systems that require constant changes in angle and can be maintained. For the steering gear, one of the main tasks is to be able to accurately control the rotation angle of the output shaft. For the control of the output shaft angle of the steering gear, its accuracy depends on the detection accuracy of the real-time angle of the output shaft, that is to say, the control system can complete the control of the output shaft only on the premise of accurately calculating the real-time angle of the output shaft. Precise control of the angle. [0003] The traditional angle detection method for the output shaft of the steering gear is usually to directly detect the rotation angle of the output shaft through the angl...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01B21/22
CPCG01B21/22
Inventor 白熹范文华王马林熊友军
Owner UBTECH ROBOTICS CORP LTD
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