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Inductive key switch system and control method

A control method and key switch technology, which is applied in the field of electronic switches, can solve the problems of electronic switch errors, poor anti-interference ability, and inability to directly apply car door locks, etc., to achieve the effect of preventing misoperation and overcoming the deformation of shrapnel

Active Publication Date: 2017-05-24
CHINA YOUNG MAN AUTOMOBILE GRP PASSENGER CAR GRP CO LTDA
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Problems solved by technology

[0005] For this reason, what the present invention aims to solve is the technical problem that the existing automotive electronic induction switch has poor anti-interference ability, which leads to errors in the electronic switch and cannot be directly applied to automobile door locks, and provides an inductive sensor with strong anti-interference ability and high reliability Key switch system and control method

Method used

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  • Inductive key switch system and control method
  • Inductive key switch system and control method

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Embodiment

[0029] A specific embodiment of an inductive key switch system according to the present invention is given below, see figure 1 As shown, an inductive key switch system includes an ignition lock 20 arranged at the engine and a key 10 matched therewith, and a locker 4 arranged at the door for locking the door, and the ignition lock 20 is provided with There is an induction device. In this embodiment, the induction device is an induction coil 21 wrapped around the ignition lock 20, which is used to send an excitation signal with a preset frequency of 50KHz; the key 10 is provided with an induction chip 11. It is used to sense the excitation signal sent by the sensing device and send the signal to the outside, where the signal is a sine wave modulation signal; it also includes a controller 3 for receiving the signal sent by the sensing chip 11 and sending the signal to the outside Output control signals with variable states, where the control signals are high-level and low-level s...

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PUM

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Abstract

The invention provides an inductive key switch system which comprises an ignition lock, a key matched with the ignition lock, a fastener, an induction device, an induction chip and a controller. A control method is further provided. The induction chip detects an excitation signal of the induction device and sends the signal to the controller, and the controller sends a control signal to the fastener. By means of the method, elastic plate deformation caused by over fatigue of mechanical key switch metal elastic plates or error signal triggering caused by the fact that contact face distance between the elastic plates is changed to exceed a safety distance is overcome. Only after the induction chip is completely matched with the induction device and a driver pulls out the key and gets off a car, automatic unlocking movement can be achieved, and malfunction caused by other abnormal operation can be prevented.

Description

technical field [0001] The invention relates to the technical field of electronic switches, in particular to an inductive key switch system and a control method. Background technique [0002] With the rapid development of my country's national economy, the automobile consumer market has grown rapidly. With the improvement of the degree of automation of automobiles, the safety of automobiles has attracted much attention. Because the car runs at a high speed, if the door is accidentally opened during the process, it will endanger the lives of the passengers. Therefore, when the vehicle is moving, the four doors will be automatically locked to ensure the safety of the passengers. When the vehicle stops and the driver pulls out the key, the four-door lockers will automatically unlock, making it easier for the passengers to get out of the vehicle. [0003] In the Chinese patent document CN2823469Y, a kind of automobile induction automatic door lock is disclosed. This automobile...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B60R25/01B60R25/04
Inventor 庞青年童云华沈晓青
Owner CHINA YOUNG MAN AUTOMOBILE GRP PASSENGER CAR GRP CO LTDA
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