| Keyless Entry and a key to start (Passive Entry and Passive Start) system(hereinafter referred to as "PEPS system), the user on the premise of carrying theintelligent key, don’t have any smart key operation, to unlock the door and back doortouch switch, blocking action. After the user to enter the car, just press a button tostart switch, you can start the engine. At the same time when the user forgetintelligent key in the car, through the combination instrument voice call the police onthe door is not locked horns alarm to remind, so that you can avoid the user forget thekeys in the car, causing unnecessary trouble.This article from the keyless entry and a button to start the design backgrou ndand purpose, keyless entry and a key to start the development direction of detailwithout keys, into a key and start the composition, principle, function definition,control strategy, validation, calibration, and the establishment of fault diagnosis,because the electronic steering column lock is, safety regulations, PEPS controllerthrough the design of double MCU control electronic steering column lock, providessafety performance; Due to the intelligent key through the lithium battery providespower, lithium battery under the condition of feeding, unable to start the vehicle,causing users complain, by designing the backup boot mode can avoid this problemhappen, intelligent key near the key start switch, directly through the chip andanti-theft coil communications, key authentication through after, can start the engine,provides the reliable performance.Through this a few aspects, this paper describes the detailed realization process ofthe whole scheme design, complete without keys into the design scheme and a key tostart from scratch, and a key to keyless entry and start system for specification andverification to the environment function fully the validation specification equirementsand definitions, mastered the core technology, improve the ability of independentdevelopment. |
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