A system and method for preventing false triggering of a kick sensor sensor in a car trunk
A technology of inductive sensors and trunks, which is applied to vehicle parts, anti-theft vehicle accessories, transportation and packaging, etc., can solve problems such as falsely sending trunk opening requests, and achieve the effect of improving security
Active Publication Date: 2022-06-24
FAW CAR CO LTD
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Problems solved by technology
[0003] The technical problem to be solved by the present invention is: in order to overcome the problems of the existing car trunk kick sensor sensor sending the trunk opening request by mistake, so as to provide a method for preventing false triggering of the trunk opening of the car under different environments or working conditions
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Embodiment 1
[0037] from figure 1 It can be seen that the real-time capacitance value is the real capacitance value on the sensing antenna at the moment, the static environment value is the calculation reference value obtained after sampling the real-time capacitance value, and the difference between the static environment value and the real-time capacitance value is
[0038] Difference = real-time capacitance value - static environment value;
[0039] Among them: the conventional environment: the state of vehicle stop, non-rainy and snowy weather, no strong electromagnetic interference, no trees, metal objects, people or animals around the sensing area;
[0040] The complex environment: rain and snow weather, strong electromagnetic interference, the presence of trees, metal objects, people or animals around the sensing area;
[0041] from figure 1 It can be seen that in the conventional environment, the real-time capacitance value changes caused by the kicking action are clear and regul...
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The invention discloses an anti-false triggering system and method of an automobile trunk kick sensor sensor, which belongs to the technical field of automobile safety. By collecting the capacitance value data of two capacitive sensing antennas, the real-time data of the two capacitive sensing antennas are respectively collected. Take the average value of multiple data, and use the average value as the static environment value at different times. The static environment value changes with time. The value of the current sampling point is compared with the static environment value, and the difference is compared with the trigger threshold. , and the difference is greater than the preset threshold, the current antenna channel is a valid trigger. Through the system and method of the present invention, the anti-interference ability under different weather environments, different ground environments, non-human triggering and other working conditions is effectively improved, the false triggering of the trunk is prevented from opening, and the safety and stability of the vehicle are improved.
Description
technical field [0001] The invention belongs to the technical field of automobile safety, and in particular relates to a system and method for preventing false triggering of a kick induction sensor of an automobile trunk. Background technique [0002] At present, the capacitive solution is generally adopted for the induction opening of the trunk of the car, that is, two sensing antennas are arranged in parallel on the inside of the rear bumper of the car. The trunk opening request signal is received, and the relevant actuator completes the opening action after receiving the trunk opening request signal. According to the physical characteristics of capacitive sensors, the induction opening of the trunk is easily affected by different weather conditions such as rain, snow, bushes, grass, soil, stone steps, manhole covers, ground environment, and small animals passing through the sensing area. Misjudgment occurs and the trunk is opened, which reduces the safety and comfort of ...
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IPC IPC(8): B60R25/20
CPCB60R25/2054
Inventor 魏佳勇马良李阳盖沙沙曹晶王健
Owner FAW CAR CO LTD