High-safety hybrid electric automobile electronic lock anti-theft method

Abstract

The invention discloses a high-safety hybrid electric automobile electronic lock anti-theft method. The method comprises the steps that a system anti-theft key is generated by finished vehicle off-assembly line equipment and an anti-theft controller through two-level encryption; when a vehicle starts, the certification conducted by an IMMO and a finished vehicle controller is needed which means that the vehicle is allowed to start only after the certification is approved by the finished vehicle controller and the IMMO, otherwise the vehicle is not allowed to start. According to the high-safety hybrid electric automobile electronic lock anti-theft method, the key meeting the requirements of single direction, uniform probability distribution and strong collision resistance is generated by means of the two-level encryption method, the certification between the anti-theft controller and the finished vehicle controller and the safety access to the anti-theft controller are further accomplished, the possibility that an anti-theft system is decrypted is greatly lowered, and the safety of the anti-theft system is greatly improved.

Description

technical field [0001] The invention relates to an automobile electronic locking anti-theft method, in particular to an electronic locking anti-theft method for a hybrid electric vehicle. Background technique [0002] For the sake of car safety, car anti-theft has become a standard configuration in Europe and the United States, and the assembly rate in China is also increasing at a rate of more than 8% per year. Currently the most widely used anti-theft system is the third-generation anti-theft system—electronic anti-theft, that is, the immobilizer controller (IMMO) verifies the start key inserted into the keyhole. )authenticating. Only after passing these two verifications, the car is allowed to start; otherwise, the car is not allowed to start. [0003] At present, the system key (SK) used in the anti-theft locking method of a large part of vehicle manufacturers is generated by a random function. The definition of this function is provided to the automobile manufacturer ...

AI Technical Summary

Problems solved by technology

[0003] At present, the system key (SK) used in the anti-theft locking method of a large part of vehicle manufacturers is generated by a random function. The definition of this function is provided to the automobile manufacturer by the manufacturer of the anti-theft controller, and its structure is simple. , poor anti-collision performance, incomplete testing and other shortcomings, which have major security risks in key writing, subsequent key management, and key distribution when the car is off the assembly line (for example, two cars may have the same key and cause a The key can open two different vehicles, etc.), which is very bad for the safety of the car

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