Vehicle engine electronic antitheft system and antitheft method thereof

Abstract

The invention discloses a vehicle engine electronic antitheft system and an antitheft method thereof. A key converter is arranged in a vehicle key; a reader coil is mounted on a vehicle ignition key cylinder, and is connected with an antitheft control unit; an antitheft indicator light is connected with the antitheft control unit; the antitheft control unit is connected with a vehicle engine control unit; the key converter and the antitheft control unit mutually transfer signals and energy; the reader coil transfers signals and energy between the antitheft control unit and the key converter; and the antitheft control unit operates, communicates, controls and drives. The system has the following advantages: 1) enciphered data is transmitted through wires; and signals are in wireless transmission; 2) the system only can be cracked by disassembling all engine control units and then recovering; 3) the engine control units only can work by passing through the verification; the antitheft control unit can send signals to the engine control units; and the engine control units can work to crack the system; and 4) the system is safe and reliable, and cannot be cracked and disassembled by mounting persons under the condition of no keys.

Description

technical field [0001] The invention relates to an automobile engine electronic anti-theft system and an anti-theft method thereof, and belongs to the technical field of automobile anti-theft systems. Background technique [0002] The most widely used car anti-theft is generally mechanical anti-theft and electronic anti-theft. [0003] The main principle of mechanical anti-theft is to lock a certain mechanism on the car so that it cannot play its due role, such as transmission gear locks, steering wheel locks, brake pedal locks, etc., the price ranges from tens of yuan to hundreds of yuan. wait. Mechanical anti-theft can prolong the time of theft, but it cannot send an alarm, and there are many means of cracking. [0004] Electronic anti-theft mainly uses wireless signals and chip passwords to lock the ignition or start to achieve the purpose of anti-theft, and has anti-theft and sound alarm functions. This is the most widely used anti-theft method in the market. Such as...

AI Technical Summary

Problems solved by technology

Although the operation is convenient, there are some disadvantages: 1) The signal of the remote control is easy to be interfered, intercepted and cracked; 2) It is easy to make false alarms and disturb the people; 3) It does not have the function of authorized use

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