汽车无钥匙系统研究与设计

Research and Design of the Car Keyless System

本文对汽车无钥匙系统的设计原理和系统应具有的基本功能进行了详细介绍,并在此基础上完成了一套汽车无钥匙系统原理样机设计。本文主要介绍了系统基站和智能钥匙之间高低频双向通讯模块,并对各功能模块主要芯片的功能特点和引脚功能进行了说明。此外,本文还对所设计汽车无钥匙系统进行了调试,完成了高低频通讯距离的测试和反应时间的分析,并且与同类型的设计进行了性能上的比较,结果显示本文所设计的汽车无钥匙系统满足设计要求,达到了预期的设计目标。

In this paper,the design principle and the basic function of passive entry and passive start system are introduced in detail.On this basis,the design of a prototype system for passive entry and passive start system is completed.This paper mainly introduces the HF and LF bidirectional communication module between the system base station and the intelligent key,the functional characteristics and pin functions of the main chips of each functional module are also described.In addition,this paper also debugged the passive entry and passive start system.Finished the test of HF and LF communication distance and response time,and the performance of the same type of design is compared.The test results showed that the design of the passive entry and passive start system meets the design requirements.Having achieved the desired design goals.