Abstract: An access system for an object with a transmission unit arranged in the object and a transponder unit arranged in a portable device. The transmission unit emits request signals at regular intervals. The transponder unit, in response to a triggering event, stores a current position of the object and determines its own position at regular intervals. The transponder unit deactivates the transmission unit when the transponder unit detects, based on the determined position, that the transponder unit has left a first zone, wherein the first zone is arranged around the object, and wherein the transmission unit does not emit any request signals while the transmission unit is deactivated. The transponder unit furthermore activates the transmission unit when the transponder unit detects, based on the determined position, that the transponder unit has entered an adjusted first zone, wherein the adjusted first zone is arranged around the object.

Abstract: In response to a triggering event, changing a vehicle remote engine start system from a first state to a second state. In the first state a remote engine start mode, a drive engine of the vehicle and a plurality of vehicle functions are deactivated. In the second state the remote engine start mode, at least one of the plurality of vehicle functions and the drive engine of the vehicle are activated. After activating the remote engine start mode, a timer is incremented or decremented from a predetermined start value. If the timer has not elapsed and the presence of a user is detected, the remote engine start system changes to a third state in which the last timer value and the current state of the remote engine start mode are stored and then the remote engine start mode and the timer are stopped, wherein the drive engine remains switched on.

Abstract: An access system for an object with a transmission unit arranged in the object and a transponder unit arranged in a portable device. The transmission unit emits request signals at regular intervals. The transponder unit, in response to a triggering event, stores a current position of the object and determines its own position at regular intervals. The transponder unit deactivates the transmission unit when the transponder unit detects, based on the basis of the determined position, that the transponder unit has left a first zone, wherein the first zone is arranged around the object and wherein the transmission unit does not emit any request signals while the transmission unit is deactivated. The transponder unit furthermore activates the transmission unit when the transponder unit detects, based on the determined position, that the transponder unit has entered an adjusted first zone, wherein the adjusted first zone is arranged around the object.

Abstract: In response to a triggering event, changing a vehicle remote engine start system from a first state to a second state. In the first state a remote engine start mode, a drive engine of the vehicle and a plurality of vehicle functions are deactivated. In the second state the remote engine start mode, at least one of the plurality of vehicle functions and the drive engine of the vehicle are activated. After activating the remote engine start mode, a timer is incremented or decremented from a predetermined start value. If the timer has not elapsed and the presence of a user is detected, the remote engine start system changes to a third state in which the last timer value and the current state of the remote engine start mode are stored and then the remote engine start mode and the timer are stopped, wherein the drive engine remains switched on.

Abstract: In a method for operating an access arrangement (ZA) for a vehicle (FZ), access to the vehicle can be obtained by a mobile identification transmitter (IDG). With this method, first an ambient brightness around the vehicle is determined. Furthermore, the presence of an authorized mobile identification transmitter in an approach region (ANB, ANB2) around the vehicle is examined. Finally, an activation signal (LSS) for an illumination source (BL) of the vehicle is issued when the ambient brightness drops below a predetermined brightness value and the presence of an authorized mobile identification transmitter is detected in the approach zone. In this way, efficient activation of the illumination source can be achieved.

Abstract: In a method for operating an access arrangement (ZA) for a vehicle (FZ), access to the vehicle can be obtained by a mobile identification transmitter (IDG). With this method, first an ambient brightness around the vehicle is determined. Furthermore, the presence of an authorized mobile identification transmitter in an approach region (ANB, ANB2) around the vehicle is examined. Finally, an activation signal (LSS) for an illumination source (BL) of the vehicle is issued when the ambient brightness drops below a predetermined brightness value and the presence of an authorized mobile identification transmitter is detected in the approach zone. In this way, efficient activation of the illumination source can be achieved.