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Clamp proof detection method and apparatus of closed part

A detection method and component technology, which can be applied to wing sash components, electrical components, door/window accessories, etc., can solve problems such as increased hardware costs, and achieve the effect of reducing hardware costs

Active Publication Date: 2017-06-27
BEIJING JINGWEI HIRAIN TECH CO INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] In order to solve the problem of increased hardware cost in the prior art, the present invention provides a method and device for detecting anti-pinch of closing parts

Method used

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  • Clamp proof detection method and apparatus of closed part
  • Clamp proof detection method and apparatus of closed part
  • Clamp proof detection method and apparatus of closed part

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Embodiment Construction

[0057] In order to enable those skilled in the art to better understand the solutions of the present invention, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only It is a part of embodiments of the present invention, but not all embodiments. 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.

[0058] figure 1 The driving structure of the closing part, that is, the motor transmission structure is shown as an example. The motor 10 drives the closing component 50 to move through a worm gear transmission system. The rotation of the motor 10 drives the worm 30 connected with the motor shaft 20 . The worm 30 further drives the gear 40 to ...

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Abstract

The invention discloses a clamp proof detection method of a closed part. The clamp proof detection method of a closed part includes the steps: acquiring the current duty ratio of a PWM (Pulse-Width Modulation) signal which is used for controlling rotation of a motor so as to drive the closed part to take action; according to the current duty ratio and a pre-obtained barrier-free duty ratio, obtaining the current clamp proof force of the closed part; comparing the current clamp proof force with a pre-obtained clamp proof force threshold; and when the current clamp proof force is greater than the clamp proof force threshold, sending a clamp proof signal which is used for controlling the motor to stop or counter-rotate. The clamp proof detection method of a closed part takes the PWM duty ratio signal as a basis for determining resistance change of the closed part, and does not need adding an extra current sampling circuit to determine whether the closed part is obstructed by a barrier, thus reducing the hardware cost.

Description

technical field [0001] The invention relates to the technical field of motor control, in particular to a method and device for detecting anti-clamping of a closing part. Background technique [0002] With the development of automotive electronic systems, the performance and functions of microcontrollers (MCUs) are becoming more and more powerful. The closing parts of vehicles are also driven by human power in the early stage, and gradually developed into using switches to control the start and stop of motors. Thanks to the high integration of sensors and controllers, in order to improve the comfort and convenience of passengers, higher requirements are put forward for the control system, that is, the function of one-button switch, so that the system can run to specified location. However, since the closing part does not require the user to continue to apply commands during the closing process, this puts forward higher requirements for safety performance, requiring the contr...

Claims

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Application Information

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IPC IPC(8): H02P29/00E05F15/42
CPCE05F15/42H02P29/00
Inventor 朱伟豪贾晟刘爽
Owner BEIJING JINGWEI HIRAIN TECH CO INC
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