Anti-trap device for automobile door

Abstract

The invention relates to an anti-pinch device for a car door, comprising a cylinder drive device for driving the door, a detection device connected with the cylinder drive device and detecting the gas exhausted by the drive device, and connected with the detection device to receive the detection A control device for the device signal, the control device receives the signal and judges the running state of the door according to the received signal to control the operation of the driving device. The device of the present invention is equipped with a pressure sensor to detect the pressure discharged by the cylinder, and converts the discharged pressure into a digital signal through the control device, and judges the door pressure according to the internal algorithm of the control device, so as to adapt to the implementation pressure when the door is closed, and has high anti-pinch sensitivity , The anti-pinch pressure of 50N is far lower than the national industry standard of 150N, with high reliability and no wrong action.

Description

technical field [0001] The invention relates to an anti-pinch device, in particular to an anti-pinch device for an automobile door. Background technique [0002] At present, there are three kinds of anti-pinch devices for the normal operation of pneumatic doors on the market: [0003] The first is electronic delay anti-pinch, the working principle of this anti-pinch is to provide several different setting anti-pinch delay times through the external switch according to the closing speed, when the door panel encounters an obstacle, the movement is blocked until the delay time reaches Prevent the door from being pinched open. The advantages of this anti-pinch are: simple and low cost. Disadvantages: The response is not sensitive, resulting in too much force when clamping people, until the delay time is reached, it can basically not be used. [0004] The second is airbag anti-pinch, the working principle of this anti-pinch is to generate an anti-pinch signal by monitoring the...

AI Technical Summary

Problems solved by technology

Disadvantages: The reaction is not sensitive, resulting in too much force when clamping, until the delay time is reached, it is basically unusable

Disadvantages: Due to the movement of the door panel, it is difficult to install and wire the air circuit, and the cost is high. The damage of the rubber strip or the leakage of the seal will cause the anti-pinch failure, and the lower end of the rubber strip will have no anti-pinch function due to the blockage

Disadvantages: Since the monitored exhaust pressure value is fixed, although it can be adjusted, it cannot follow the change of exhaust pressure, resulting in poor sensitivity and low reliability

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