Access arrangement for a vehicle

A vehicle including an access arrangement comprising:

• a vehicle-mounted transmitting/receiving device configured to send out query signals successively in time in first predetermined time intervals;
• at least one mobile identification transmitter comprising:
• a mobile transmitting/receiving device having an adjustable reception sensitivity for receiving the query signals of the vehicle-mounted transmitting/receiving device;
• and
• a checking device configured to output a control command that reduces a sensitivity of the mobile transmitting/receiving device by a first predetermined amount in response to the mobile transmitting/receiving device receiving a predetermined number of query signals sent out by the vehicle-mounted transmitting/receiving device;
• and
• a timer configured to measure first and second predetermined time intervals of respective durations, wherein the duration of the second predetermined time interval is greater than the duration of the first predetermined time interval;
• wherein if the mobile transmitting/receiving device does not receive a query signal during the second predetermined time interval the timer, after completion of the second predetermined time interval, causes the checking device to output a third control command increasing the reception sensitivity of the mobile transmitting/receiving device by a third predetermined amount.

A method for operating an access arrangement for a vehicle, the method comprising:

• sending out a number of query signals by a vehicle-mounted transmitting/receiving device in first predetermined time intervals measured by a timer;
• receiving the query signals by a mobile transmitting/receiving device of a mobile identification transmitter;
• outputting a control command that reduces a reception sensitivity of the mobile identification transmitter by a first predetermined amount in response to the mobile transmitting/receiving device receiving a predetermined number of query signals sent out by the vehicle-mounted transmitting/receiving device;
• and
• if the mobile transmitting/receiving device does not receive a query signal during a second predetermined time interval causing the checking device to output a third control command increasing the reception sensitivity of the mobile transmitting/receiving device by a third predetermined amount, wherein the duration of the second predetermined time interval is greater than the duration of the first predetermined time interval.