Motor vehicle entry and start system and operating method and motor vehicle

Abstract

A method for operating a start and entry system of a motor vehicle, including the steps of: detecting whether an authorization of the starting of the motor vehicle is carried out on the basis of a key signal received on the vehicle side, which has been sent from a transmitting and receiving unit of a vehicle key, or whether the authorization of the starting of the vehicle is carried out on the basis of a near-field signal received on the vehicle side, which has been sent by a near-field communication system of a mobile communication device. If the authorization of the vehicle start is carried out on the basis of the key signal received on the vehicle side: the start and entry system is operated in a key operating mode, in which, following the starting of the vehicle, only the availability of the vehicle key in a vehicle interior of the motor vehicle is monitored.

Description

technical field [0001] The invention relates to a method for operating an entry and start system of a motor vehicle and an entry and start system for a motor vehicle. Background technique [0002] So-called keyless entry and start systems for motor vehicles are known. In such a system, the user only needs to carry a key including the sending and receiving unit to gain access to his vehicle, and then usually activates the vehicle's power plant by manipulating a "start-stop" button. In this case, the motor vehicle does not have to be actively unlocked, nor does the key need to be inserted into the ignition switch of the motor vehicle and turned. An entry and starting system for a motor vehicle is also known, in which the motor vehicle can be unlocked, locked and started by means of a smartphone, in particular via near-field communication between the smartphone and the motor vehicle. [0003] Document DE 10 2014 107 186 A1 shows a modular unit with an interface for a communic...

AI Technical Summary

Problems solved by technology

[0007] Especially when the motor vehicle can be unlocked, locked and started both by means of an NFC-enabled, i.e. near-field communication capable communication device, for example in the form of a smartphone, and by means of a vehicle key with a transmitter and receiver unit, sometimes undesired side effects can occur

For example, functional restrictions or unauthorized displays in the vehicle's display unit, e.g. the instrument cluster

Furthermore, if both systems, namely the system for near-field communication and the system for communicating with the transmitter and receiver unit of the vehicle key, are in continuous operation, this creates a disadvantage in terms of energy consumption

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