Design And Implement Of A Model-Base Developmented Keyless Entry And Start System

Keyless entry and Passive Entry(Passive Entry and Passive start)system is PEPS system,in the field of automotive electronics,it is a new type of safe entry and anti-theft system,the system to ensure the normal use of the vehicle under the premise of The driver to provide more comfortable and convenient driving experience for the automotive electronics maPKEt has opened up new applications and research and development direction.The driver is carrying the smart key under the prerequisite,into the car door handle when the induction area pull the door handle,the vehicle is unlocked until the driver into the car,just press a key to start the button or turn a key to start The knob will be able to complete the vehicle start operation.PEPS system with its interactive authentication technology,high security and more comfortable and convenient experience in the automotive electronics maPKEt in the popular.This paper starts from the background and development direction of PEPS system.Through the in-depth study of system composition,system component composition,system working principle and system control strategy,the function of the whole system is analyzed and defined modularly.The software is used to model and simulate each functional module,and the calibration of the intelligent key is completed.The design of the paper is tested by Matlab simulation and real environment to verify the value of the design.In terms of security,this paper adopts the dual MCU design,through the PEPS controller and BCM body integrated controller to control the electronic steering column lock;in terms of reliability,this paper uses the backup IMMO startup mode design,through the smart key chip And the anti-theft coil to communicate with each other to complete the authentication of the smart key and start the engine.In the encryption algorithm,this paper proposes an AES algorithm based on the Hash function to realize the real-time and effective updating management of the system initial key and improve the system The process of security performance.