Anti-theft locking system of automobile engine and encrypting method thereof

Abstract

The invention discloses an automotive engine anti-theft locking system and an encryption process thereof. The system comprises a remote control key / radio frequency responder, an ignition switch, a radio frequency demodulation transceiver and an SCU controller. Signal sent in each time is data which is encrypted through adopting the technical scheme of the invention, and the encryption process penetrates through the key, a centre control unit and an engine management system. Each key is provided with a transmitting chip, and the chip transfers signals to a transmitting-receiving coil when the key is inserted into the ignition switch, just like transmitting codes, and an anti-theft control will instantly command an engine computer to cut off the oil supply and ignition system if the codes are incorrect, thereby being incapable of starting the engine, and greatly increasing the anti-theft safety of the automobiles.

Description

technical field [0001] The patent of the present invention relates to an automobile electronic anti-theft system (Immobilization), or IMMO for short, and in particular to an automobile electronic anti-theft system that controls engine operation through a remote control key ID. Background technique [0002] With the rapid development of the automobile industry, many auxiliary performances of vehicles have been paid more and more attention by consumers and manufacturers, and the anti-theft of automobiles is one of them. The engine anti-theft locking system IMMO (Immobilization) is developed on the basis of the general-purpose VATS (Vehicle Anti-Theft System). It inherits the idea of ​​VATS in the anti-theft principle, that is, using the password of the chip in the key and the key in the starter switch The password is matched to control the starting of the engine to achieve the purpose of anti-theft. After several generations of improvement, it has become an anti-theft technol...

AI Technical Summary

Problems solved by technology

However, the mainstream IMMO technology currently used in vehicles is limited by cost and control. The random number transmitted between the key and the base station is only the MAC address and has not been encrypted. Such data may be lost in an environment with strong electromagnetic interference. There is an error in extracting the ID seed, which effectively prevents thieves and at the same time brings unnecessary trouble to the owner

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