Car key with adjustable remote-control distance

A technology of remote control distance and car key, applied in the field of car keys, can solve the problems of fixed unlocking/locking distance, inability to set, and unlocking by mistake, so as to avoid the risk of unlocking by mistake.

Active Publication Date: 2015-12-02
CHONGQING CHANGAN AUTOMOBILE CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Due to the fixed transmission power of the existing remote control key, the unlocking / blocking distance is fixed and cannot be set
The use of remote control car keys should not only consider convenience, but also safety. The control distance is too long, and there is a risk of unlocking by mistake. The control distance is too short, and sometimes it cannot meet the needs of users to control the car remotely.

Method used

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  • Car key with adjustable remote-control distance
  • Car key with adjustable remote-control distance
  • Car key with adjustable remote-control distance

Examples

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Embodiment Construction

[0011] In order to further explain the technical solution of the present invention, the present invention will be described in detail below in conjunction with the accompanying drawings.

[0012] see figure 1 and image 3 As shown, the car key with adjustable remote control distance includes a first power transmission circuit 2, a crystal oscillator circuit 3, a key circuit 6, a controller unit 5, a second power transmission circuit 1, a power selection circuit 4 and a key for unlocking and unlocking. Three buttons for trunk, lock or remote car search. Both the first power transmitting circuit 2 and the second power transmitting circuit 1 are commonly used transmitting circuits for car keys at present. The second power transmitting circuit 1 makes the control distance of the second power transmitting circuit 1 larger than the control distance of the first power transmitting circuit 2 by matching different component parameters. The crystal oscillator circuit 3 is a circuit t...

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PUM

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Abstract

The invention discloses a car key with an adjustable remote-control distance. The car key comprises a first power emitting circuit, a keying circuit, a controller unit, three press keys for separately shutting, unlocking and unlocking a trunk, a second power emitting circuit and a power selection circuit, wherein the control distance of the second power emitting circuit is longer than that of the first power emitting circuit; the power selection circuit comprises a first triode and a second triode; the controller unit drives and switches on the first triode or the second triode so as to select the first power emitting circuit or the second power emitting circuit. The car key disclosed by the invention can change emitted power according to the demands of a user, so that setting of the remote-control distance to the car key is realized.

Description

technical field [0001] The invention relates to a car remote control key, in particular to a car key with adjustable remote control distance. Background technique [0002] With the rapid development of automotive electronics, the remote unlocking function of car keys has been widely used in various car brands. The car remote control key refers to the wireless remote control function of the central lock. The basic principle of the existing remote control key is: a fixed power radio wave is sent from the car owner, the radio wave signal is received by the car antenna, the signal code is recognized by the electronic controller ECU, and then the actuator of the system executes the opening / closing action. [0003] Due to the fixed transmission power of the existing remote control key, the unlocking / blocking distance is fixed and cannot be set. The use of remote car keys should not only consider convenience, but also safety. The control distance is too long, and there is a risk ...

Claims

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Application Information

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IPC IPC(8): B60R25/24G08C17/02
CPCB60R25/24G08C17/02
Inventor 易纲文滔张鹏陈斌杨森
Owner CHONGQING CHANGAN AUTOMOBILE CO LTD
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