Abstract: A method for determining the starting capability of an internal combustion engine of a motor vehicle, which can be started by an electric motor powered by a battery, including detecting first battery parameter values during a successful starting sequence of the internal combustion engine at a first time, detecting second battery parameter values at a second time following the first time, determining at the second time the expected battery voltage for a starting sequence of the internal combustion engine taking place at a third time based on the detected first and second battery parameter values, and comparing the battery voltage expected at the third time with a predetermined threshold value in order to derive therefrom the starting capability of the internal combustion engine.

Abstract: A method for determining the starting capability of an internal combustion engine of a motor vehicle, which can be started by an electric motor powered by a battery, including detecting first battery parameter values during a successful starting sequence of the internal combustion engine at a first time, detecting second battery parameter values at a second time following the first time, determining at the second time the expected battery voltage for a starting sequence of the internal combustion engine taking place at a third time based on of the detected first and second battery parameter values, and comparing the battery voltage expected at the third time with a predetermined threshold value in order to derive therefrom the starting capability of the internal combustion engine.

Abstract: An access arrangement for a vehicle (FZ) has a transmit/receive device on the vehicle side (19) to transmit one or several interrogation signals. In addition, the access arrangement has a mobile identification generator (IDI, IDA) with a transmit/receive device on the identification generator side (SE) to receive interrogation signals from the transmit/receive device on the vehicle side and to evaluate signal characteristics of the interrogation signals at at least two different points in time. The mobile identification generator furthermore has a control device (ST) to output a different control command depending on a change (?FS, ?FR) in the evaluated signal characteristics. In the event of no change or a small change in the signal characteristics, a signal may be output to deactivate the identification generator, while in the event of a marked change a locking signal to lock a door (TFZ) of the vehicle may be output.

Abstract: A security configuration in or for a motor vehicle, which includes a bodywork part, such as a door, and a window pane arranged in the bodywork part. The security configuration includes a touch-sensitive keypad integrated in or mounted to the window pane. The keypad has a plurality of touch sensors, each of which takes the form of resonant oscillating circuits and via which an actuation of a respective touch sensor can be picked up. An electronic evaluation system is configured for the purpose of detecting an actuation of the keypad and attributing said actuation to a respectively actuated touch sensor. There is also provided a motor vehicle which includes such a security configuration.

Abstract: A single high-frequency transmitter emits radiation in a vehicle (1) comprising several seats (2), said high-frequency radiation being reflected depending on whether a seat is occupied, transmitted to a receiver and evaluated with regard to the radiation intensity. In addition, the reliability of the identification is increased, even when the occupant is out of position, by the provision of at least one reflector (9) per seat in or on an allocated seat-belt (6).

Abstract: Disclosed is a device comprising a transceiver (9) which transmits HF signals that are reflected back by means of reflectors (6) located in the seats. Diagnostic reflectors (10) are disposed at the edge of the seats in order to diagnose the reflectors (6). Said diagnostic reflectors (10) are disposed such that the diagnostic reflectors are normally not covered up by a person (1) sitting on a seat (2). The diagnosis is carried out at the same time as the person is identified.

Abstract: An access arrangement for a vehicle (FZ) has a transmit/receive device on the vehicle side (19) to transmit one or several interrogation signals. In addition, the access arrangement has a mobile identification generator (IDI, IDA) with a transmit/receive device on the identification generator side (SE) to receive interrogation signals from the transmit/receive device on the vehicle side and to evaluate signal characteristics of the interrogation signals at at least two different points in time. The mobile identification generator furthermore has a control device (ST) to output a different control command depending on a change (?FS, ?FR) in the evaluated signal characteristics. In the event of no change or a small change in the signal characteristics, a signal may be output to deactivate the identification generator, while in the event of a marked change a locking signal to lock a door (TFZ) of the vehicle may be output.

Abstract: The position and the weight of a person, in particular a person on a motor vehicle seat, is determined. Reflectors are used to reflect electromagnetic radiation from a transceiver. The attenuation of the sensor reflector radiation enables a report on the seat position of a person in the radiation path. An antenna of each sensor reflector is connected to an electrical load assigned thereto, which is dependent on the weight of the person acting upon it. Depending on this weight, weight information about the person is superimposed by the load onto the reflected sensor reflector signal. The reflected sensor reflector signal is received by the transceiver and fed to the evaluation unit after a signal pre-processing, which enables the weight information of the person to be evaluated.

Abstract: A security configuration in or for a motor vehicle, which includes a bodywork part, such as a door, and a window pane arranged in the bodywork part. The security configuration includes a touch-sensitive keypad integrated in or mounted to the window pane. The keypad has a plurality of touch sensors, each of which takes the form of resonant oscillating circuits and via which an actuation of a respective touch sensor can be picked up. An electronic evaluation system is configured for the purpose of detecting an actuation of the keypad and attributing said actuation to a respectively actuated touch sensor. There is also provided a motor vehicle which includes such a security configuration.

Abstract: A single high-frequency transmitter emits radiation in a vehicle (1) comprising several seats (2), said high-frequency radiation being reflected depending on whether a seat is occupied, transmitted to a receiver and evaluated with regard to the radiation intensity. In addition, the reliability of the identification is increased, even when the occupant is out of position, by the provision of at least one reflector (9) per seat in or on an allocated seat-belt (6).

Abstract: Taking as a starting point known security apparatuses and their methods for distance-dependent initiation of functions in or at an object, the reliability of distance measurements is essentially increased by carrying out a series of distance measurements, an associated quality value (G) being calculated by a mathematical function in each case for the measuring results (M1–M5, R1, R2) of said distance measurements. Only those measured values which fall below a certain quality value (Krit) as a threshold value are generally accepted for an analysis in respect of initiating a distance-related function. Developments provide for selecting measured values beforehand with reference to a level measurement, in order to further increase the reliability, or applying methods of statistical analysis subsequently.

Abstract: Disclosed is a device comprising a transceiver (9) which transmits HF signals that are reflected back by means of reflectors (6) located in the seats. Diagnostic reflectors (10) are disposed at the edge of the seats in order to diagnose the reflectors (6). Said diagnostic reflectors (10) are disposed such that the diagnostic reflectors are normally not covered up by a person (1) sitting on a seat (2). The diagnosis is carried out at the same time as the person is identified.

Abstract: A method for determining the position of at least one second transmitting and receiving device (3) in respect of a first transmitting and receiving device in a passive access control system operating in the GHz range, comprising the steps of using a radar method, wherein signals (f1, f2) are received in the first transmitting and receiving device on the left-hand side and right-hand side of a modulation frequency (fmod), determining the distance of two signals (f1, f2) closest to the left-hand side and right-hand side modulation frequency (fmod) wherein the distance is proportional to the distance between the first transmitting and receiving device and at least one second transmitting and receiving device (3), so that multipath propagations are not taken into consideration.

Abstract: The position and the weight of a person, in particular a person on a motor vehicle seat, is determined. Reflectors are used to reflect electromagnetic radiation from a transceiver. The attenuation of the sensor reflector radiation enables a report on the seat position of a person in the radiation path. An antenna of each sensor reflector is connected to an electrical load assigned thereto, which is dependent on the weight of the person acting upon it. Depending on this weight, weight information about the person is superimposed by the load onto the reflected sensor reflector signal. The reflected sensor reflector signal is received by the transceiver and fed to the evaluation unit after a signal pre-processing, which enables the weight information of the person to be evaluated.

Abstract: Taking as a starting point known security apparatuses and their methods for distance-dependent initiation of functions in or at an object, the reliability of distance measurements is essentially increased by carrying out a series of distance measurements, an associated quality value (G) being calculated by a mathematical function in each case for the measuring results (M1-M5, R1, R2) of said distance measurements. Only those measured values which fall below a certain quality value (Krit) as a threshold value are generally accepted for an analysis in respect of initiating a distance-related function. Developments provide for selecting measured values beforehand with reference to a level measurement, in order to further increase the reliability, or applying methods of statistical analysis subsequently.

Abstract: A method for determining the position of at least one second transmitting and receiving device (3) in respect of a first transmitting and receiving device in a passive access control system operating in the GHz range, comprising the steps of using a radar method, wherein signals (f1, f2) are received in the first transmitting and receiving device on the left-hand side and right-hand side of a modulation frequency (fmod), determining the distance of two signals (f1, f2) closest to the left-hand side and right-hand side modulation frequency (fmod) wherein the distance is proportional to the distance between the first transmitting and receiving device and at least one second transmitting and receiving device (3), so that multipath propagations are not taken into consideration.