Anti-pinch detection method and system
A detection method and detection system technology, applied in the direction of measuring devices, vehicle testing, and measuring electrical variables, etc., can solve problems such as false pinch prevention, speed changes that cannot accurately reflect changes in anti-pinch force, and poor anti-pinch detection results. To achieve the effect of improving accuracy and speed
Active Publication Date: 2019-01-29
BEIJING JINGWEI HIRAIN TECH CO INC
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Problems solved by technology
The current electric backup door has the function of obstacle detection, and usually adopts closed-loop speed control, but the change of speed cannot accurately reflect the change of anti-pinch force, so the effect of anti-pinch detection is not good, and it is easy to have problems such as false anti-pinch
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[0057] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. 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] Such as figure 1 As shown, it is a flow chart of Embodiment 1 of an anti-pinch detection method disclosed by the present invention. The method includes the following steps:
[0059] S101. Obtain the running time of the motor, and judge whether the running time reaches the preset stable time, and if so, go to S102;
[0060]When the backup door starts to open or close, that is, when the motor starts to run, record the running time of the motor from the m...
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The invention discloses a clamp proof detection method comprising the following steps: electric motor operation time is obtained, and whether the operation time reaches a preset stabilization time is determined; when that the operation time reaches the preset stabilization time is determined, an average current value of a current position segment is detected; whether difference between the average current value of the current position segment and an average current value of a previous position segment is greater than a first preset threshold value is determined; if not, an average current value of a next position segment is detected and a predicted current value of the next position segment is calculated; whether difference between the average current value of the next position segment and the predicted current value of the next position segment is greater than a second preset threshold value is determined; if yes, a clamp proof result is output. Via the clamp proof detection method and system, clamp proof detection accuracy can be improved. The invention also discloses a clamp proof detection system.
Description
technical field [0001] The invention relates to the field of anti-pinch technology, in particular to an anti-pinch detection method and system. Background technique [0002] Compared with the transmission rocker type electric back door, the strut type car electric back door system has many advantages due to its unique opening method, such as low noise, small motor current, little influence by temperature, and hovering in the middle position. are increasingly favored by users. The current electric backup door has an obstacle detection function, and usually adopts closed-loop speed control, but the speed change cannot accurately reflect the change of the anti-pinch force, so the anti-pinch detection effect is not good, and it is easy to have problems such as false anti-pinch. Contents of the invention [0003] The invention provides an anti-pinch detection method and system, which can improve the accuracy of anti-pinch detection. [0004] The invention provides an anti-pin...
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IPC IPC(8): G01M17/007G01R19/165
CPCG01M17/007G01R19/165
Inventor 陈铎
Owner BEIJING JINGWEI HIRAIN TECH CO INC