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Circuit for driving antenna of vehicle keyless entry and starting system

A technology of keyless entry and keyless start, which is applied in the field of vehicle door locks and engine encrypted start control systems, and can solve problems such as the inability to realize keyless entry of vehicles

Active Publication Date: 2015-03-25
SHANGHAI SIIC TRANSPORTATION ELECTRIC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to provide a circuit for driving the antenna of the vehicle keyless entry start system for the existing vehicle start system without a separate antenna driver chip, which cannot realize the purpose of vehicle keyless entry Switching function to realize vehicle keyless entry without driver chip

Method used

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  • Circuit for driving antenna of vehicle keyless entry and starting system

Examples

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Comparison scheme
Effect test

Embodiment 1

[0016] A circuit for driving the antenna of a vehicle keyless entry system, which includes an anti-theft base station 1, a vehicle keyless entry antenna 2 and a vehicle keyless entry antenna 3, the anti-theft base station 1 and the vehicle keyless entry antenna 2 are connected to form a vehicle keyless The start control circuit, the anti-theft base station 1 and the vehicle keyless entry antenna 3 are connected to form the vehicle keyless entry control circuit, which is characterized in that a relay 4 is arranged between the vehicle keyless start control circuit and the vehicle keyless entry control circuit to make it Only one circuit is on.

[0017] The vehicle keyless start antenna 2 and the vehicle keyless entry antenna 3 are connected in parallel to the drive output positive terminal and the drive output negative terminal of the anti-theft base station 1, and a relay 4 is set on the connecting circuit, so that the vehicle keyless start antenna 2 and the vehicle keyless Onl...

Embodiment 2

[0020] If the parameters cannot meet the control requirements during the control process, you can install a start matching resistor 5 on the connection line connecting the vehicle keyless entry antenna 2 to the anti-theft base station 1 and connect the vehicle keyless entry antenna 3 to the anti-theft base station 1 It is enough to enter the matching resistor 6 on the line and adjust the parameters to an appropriate value.

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Abstract

The invention discloses a circuit for driving an antenna of a vehicle keyless entry and starting system. The circuit comprises an antitheft base station (1), a vehicle keyless starting antenna (2) and a vehicle keyless entry antenna (3). The antitheft base station (1) and the vehicle keyless starting antenna (2) are connected with each other to form a vehicle keyless starting control circuit, and the antitheft base station (1) and the vehicle keyless entry antenna (3) are connected with each other to form the vehicle keyless entry control circuit. The circuit is characterized in that a relay (4) is arranged between the vehicle keyless starting control circuit and the vehicle keyless entry control circuit, and only one of the vehicle keyless starting control circuit and the vehicle keyless entry control circuit can be in a closed state at a time by the aid of the relay. The circuit has the advantages vehicle keyless entry and starting effects can be realized by the aid of the driving capacity of the antitheft base station under the switching effect of the relay without individual antenna driving chips, accordingly, the production cost can be reduced, and the purpose of realizing the vehicle keyless entry and starting effects can be achieved.

Description

technical field [0001] The invention relates to a vehicle door lock and an engine encryption start control system, in particular to a circuit for driving an antenna of a keyless entry start system of a vehicle, which can realize keyless entry and start of a vehicle without separately driving an antenna chip. Background technique [0002] With the rapid development of the economy, the automobile industry has developed rapidly, and the operation of automobiles has become more and more user-friendly, especially the door locks and engine encrypted start control parts of automobiles, which have realized keyless entry and start functions. The key entry and start function means that the user can unlock and lock the vehicle or start the engine without operating the key. This vehicle keyless entry and start system includes a central processing unit and a smart key to complete wireless authentication, and then the door is unlocked or started. Engine, the user can directly open the doo...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B60R25/20G07C9/00
CPCB60R25/20G07C9/00
Inventor 朱钢吴敏明
Owner SHANGHAI SIIC TRANSPORTATION ELECTRIC
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