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Anti-pinch method of lifting control system and lifting control system

A lifting control and anti-pinch technology, applied in general control systems, control/adjustment systems, program control, etc., can solve the problems of control system impact, tilt of the executed module, hidden safety hazards, etc., and achieve the effect of improving the safety performance.

Inactive Publication Date: 2020-04-24
上海衡鲁汽车科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

During the lifting process of adjusting the height of the control system, it often happens that the control system is hit by the execution module on obstacles placed below or above it, causing the control system to be tilted by the execution module, which has certain potential safety hazards

Method used

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  • Anti-pinch method of lifting control system and lifting control system

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Experimental program
Comparison scheme
Effect test

Embodiment

[0056]There is a certain relationship between the current peak threshold and the current / voltage when the lifting control system is activated. The current is the motor current. The electric energy of the DC power supply enters the armature winding through the brush and the commutator to generate the armature current. The magnetic field generated by the armature current interacts with the main magnetic field to generate an electromagnetic torque, so that the motor rotates to drive the load.

[0057] A data table is set in the motor control unit, the data table is a two-dimensional table, the X-axis coordinates of the two-dimensional table are current values ​​preset at equal intervals, and the Y-axis coordinates are current threshold values, and there is a one-to-one correspondence between the two , showing a linear decreasing relationship. Table 1 gives an example of a two-dimensional data table. As shown in Table 1, the power supply voltage of the motor at this time is 12V, t...

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PUM

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Abstract

The invention discloses an anti-pinch method of a lifting control system and the lifting control system. The anti-pinch method comprises the following steps: acquiring running current of a motor according to a preset sampling period to obtain a current detection value; looking up a data table to obtain a current threshold corresponding to the current detection value at the previous moment; judgingwhether anti-pinch triggering exists or not by judging whether the current detection value at the current moment is larger than or equivalent to the current threshold value or not; and if the currentdetection value is abnormal, starting an anti-pinch action, so that a moving part of the lifting control system stops after running reversely for a certain distance. Thus, the safety anti-pinch function is effectively achieved, and the use safety performance of the lifting control system is improved.

Description

technical field [0001] The invention relates to a lifting control system, in particular to an anti-pinch method of the lifting control system and the lifting control system. Background technique [0002] When the general control system is in use, different users have differences in height and body shape. Therefore, if the height of the control system can be adjusted to an appropriate height, the user can be more comfortable. Some related companies have developed a liftable control system to adjust the height of the control system to suit users of different heights and body shapes. At present, according to the control mode of lifting, it is mainly divided into electric lifting and manual lifting. For the lifting control system of manual lifting, the adjustment speed is slow and requires physical strength of the user, and due to the existence of the mechanical transmission mechanism, the mechanism needs to be maintained more frequently, otherwise it is easy to rust or get st...

Claims

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Application Information

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IPC IPC(8): G05B19/042
CPCG05B19/0423G05B2219/25257
Inventor 何德管陈礼樊人豪
Owner 上海衡鲁汽车科技有限公司