The invention relates to the technical field of automotive electronics, in particular to a door lock control system based on low-frequency passive communication, an intelligent key and a method. The system comprises a vehicle-mounted module and a key module. The vehicle-mounted module comprises a low-frequency antenna and a vehicle body controller; the key module comprises a passive transceiver; the low-frequency antenna is used for transmitting and sensing a corresponding low-frequency signal; the passive transceiver is used for sensing and realizing power-on work of the key module based on a low-frequency signal of the low-frequency antenna; judging the validity of the low-frequency signal, and transmitting a corresponding key authentication feedback signal; the vehicle body controller is used for driving the low-frequency antenna to transmit a corresponding low-frequency signal and sensing a corresponding key authentication feedback signal through the low-frequency antenna; and then the legality of the key authentication feedback signal is judged, and the door lock is controlled to execute corresponding actions according to the legality judgment result. According to the door lock control system, keyless entry can be effectively achieved, and the light-weight and miniaturized design of an intelligent key can be achieved.
本发明涉及汽车电子技术领域,具体涉及基于低频无源通信的门锁控制系统、智能钥匙及方法。系统包括车载模块和钥匙模块;车载模块包括低频天线和车身控制器;钥匙模块包括无源收发器;低频天线,用于发射和感应对应的低频信号;无源收发器,用于感应并基于低频天线的低频信号实现钥匙模块的上电工作;然后判断低频信号的有效性,并发射对应的钥匙认证反馈信号;车身控制器,用于驱动低频天线发射对应的低频信号,并通过低频天线感应对应的钥匙认证反馈信号;然后判断钥匙认证反馈信号的合法性,并根据合法性判断结果控制门锁执行相应动作。本发明的门锁控制系统能够有效的实现无钥匙进入,且能够实现智能钥匙的轻型化和小型化设计。
Door lock control system based on low-frequency passive communication, intelligent key and method
基于低频无源通信的门锁控制系统、智能钥匙及方法
2022-05-06
Patent
Elektronische Ressource
Chinesisch
IPC: | B60R Fahrzeuge, Fahrzeugausstattung oder Fahrzeugteile, soweit nicht anderweitig vorgesehen , VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR |
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