The invention discloses an automobile keyless entry and start system and an automobile keyless entry and start method based on a communication bus. The automobile keyless entry and start method based on the communication bus comprises the following steps of recognizing whether an unlocking action exists or not through an inductive sensor by using an electronic control unit; transmitting a trigger signal to a central control unit if the unlocking action exists and transmitting an unlocking signal by using a low-frequency antenna transmitter within an effective transmitting range of the low-frequency antenna transmitter; transmitting a personal information signal by using a radio frequency transmitter within an effective transmitting range of the radio frequency transmitter after a low-frequency antenna receiver in an intelligent key receives the unlocking signal transmitted by the electronic control unit; detecting whether the radio frequency transmitter receives the personal information signal which is transmitted from the intelligent key or not after the central control unit receives the triggering signal transmitted from the electronic control unit; analyzing whether personal information is legal or not; and processing an engine unlocking and starting command transmitted by a chip if the personal information is legal. The automobile keyless entry and start system and the automobile keyless entry and start method based on the communication bus are low in energy consumption, convenient and reliable to operate and wide in application range.
Automobile keyless entry and start system and automobile keyless entry and start method based on communication bus
2015-04-08
Patent
Elektronische Ressource
Englisch
IPC: | B60R Fahrzeuge, Fahrzeugausstattung oder Fahrzeugteile, soweit nicht anderweitig vorgesehen , VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR |
Keyless entry control system, keyless entry method and keyless entry device for vehicle
Europäisches Patentamt | 2023
|Europäisches Patentamt | 2017
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