Abstract: A vehicle door handle for a motor vehicle is described, which includes an integrated transmitting and/or receiving device which comprises an LF antenna and a separately formed NFC antenna. The NFC antenna has a plurality of windings provided on a circuit board. The LF antenna has a plurality of coils wound around a core material formed separately from the circuit board. The NFC antenna encompasses a projection of the LF antenna on the circuit board.

Abstract: A vehicle door handle for a motor vehicle is described, which includes an integrated transmitting and/or receiving device which comprises an LF antenna and a separately formed NFC antenna. The NFC antenna has a plurality of windings provided on a circuit board. The LF antenna has a plurality of coils wound around a core material formed separately from the circuit board. The NFC antenna encompasses a projection of the LF antenna on the circuit board.

Abstract: A tire monitor sensor (16) for a vehicle has a sensor (26, 28) being adapted to measure a condition of a tire of a vehicle, a control unit (24) being connected to said sensor (26, 26) and being adapted to obtain a condition value (C) for said condition from said sensor (26, 28), said control unit (24) being configured to transmit said condition value (C) wirelessly, and a power source (20) providing electrical power to said control unit (24) via at least one terminal line (36, 38). Said terminal line (36, 38) is orientated with respect to said control unit (24) and configured to also act as an antenna partly, said control unit (24) being capable of transmitting said condition value (C) wirelessly by means of said terminal line (36, 38). Moreover, a tire monitor system is shown, said tire monitor system having a tire monitor sensor (16) and a receiver.

Abstract: A wireless tire pressure monitor system configured for transmitting tire pressure information of a tire of a vehicle is described. The wireless tire pressure monitor system comprises a vehicle-based receiver, at least one tire pressure sensor configured to be mounted inside the tire and configured to measure the air pressure within the tire, and a transmitter electronically connected to the tire pressure sensor and configured to transmit a signal comprising the tire pressure information to the vehicle-based receiver. The wireless tire pressure monitor system is configured to transmit the signal in a first transmission mode from the transmitter to the vehicle-based receiver when the tire is rotating, and transmit the signal in a second transmission mode from the transmitter to the vehicle-based receiver when the tire is stationary. Moreover a method of transmitting tire pressure information employing a wireless tire pressure monitor system is described.

Abstract: A brake pad wear measuring system for measuring brake pad wear for a vehicle disc brake system includes a first coil having a first coil face and is excitable to create a first magnetic field. A first target is spaced a fixed distance from the first coil face. The first coil and the first target are configured for movement relative to each other in response to application of the disc brake system so that the first target covers a portion of the first coil that varies with the amount of brake pad wear and varies the inductance of the first coil. The inductance of the first coil is indicative of the amount of brake pad wear. The brake pad wear measuring system also includes a second coil having a second coil face and is excitable to create a second magnetic field.

Abstract: A method for controlling access to a vehicle includes storing at a vehicle-based system a GPS location of the vehicle associated with the location at which the vehicle is parked. The vehicle-based system communicates with a mobile device to obtain a GPS location of the mobile device. The vehicle-based system blocks entry to the vehicle if the GPS location of the mobile device is outside a predetermined distance from the stored GPS location of the vehicle.

Abstract: Method for preventing security breaches via the two-thief method of attack of passive remote keyless entry systems for vehicles. The method involves the transmission of a signal between a fob and the vehicle, where the level of the signal changes in a particular pattern. At the receiving side, anomalies in the pattern of the received signal (e.g., levels, timing) are detected and used to detect attempts to mimic the signal.

Abstract: A passive keyless entry system for an electronic lock, comprises a lock installation including a lock controller, and an RF transmitter and receiver, and a fob with a controller, and an RF transmitter and receiver. The fob generates messages to unlock the lock in an unlock event. The controllers share a secret specifying parameters for a sequence of messages to be exchanged bidirectionally between the installation and the fob, the parameters changing between each unlock event and an immediately subsequent unlock event. For each unlock event one of the controllers generates and sends a first message of the message sequence, in accordance with the specified parameters. The other controller causes transmission of a second message of the sequence in accordance with the specified parameters, in response to receiving the first message. At least one message of the sequence comprises a plurality of frames, each frame including a particular sequence of bits, adjacent frames being separated by an inter-frame interval.

Abstract: A brake pad wear measuring system for measuring brake pad wear for a vehicle disc brake system includes an inductive sensor operable to create a magnetic field and a target. At least one of the sensor and the target are mounted for movement along a braking axis with a component of the disc brake system. The positions of the sensor and target relative to each other changes in response to application of the disc brake system. The distance that the sensor and target move relative to each other in response to application of the disc brake system increases an amount that is equal to the total wear of the inner and outer brake pads. The sensor is responsive to the change in inductance caused by movement of the target in the magnetic field to provide a signal indicative of brake pad wear.

Abstract: A brake pad wear sensing system for measuring brake pad wear for a vehicle disc brake system includes a brake pad wear sensor including a near field communication (“NFC”) circuit for transmitting an NFC signal and a tank circuit including a resonating component and a charge storage component. The tank circuit powers the brake pad wear sensor including the NFC circuit. The tank circuit is configured to be inductively charged in response to interrogation by a NFC device positioned within a predetermined proximity of the brake pad wear sensor. The NFC circuit is configured to respond to the interrogation by the NFC device to transmit the NFC signal. The resonating component or the charge storage component has a physical condition or effective component value that is configured to be degraded in response to brake pad wear. The degradation of the resonating component or the charge storage component reducing the signal strength with which the NFC signal is transmitted.

Abstract: A method for defeating a two-thief attack on a passive RKE system by using frequency hopping. Radio frequency signals are transmitted between a fob and a vehicle. The transmitted signals hop between at least two radio frequency transmitting channels in a particular pseudo-random pattern known to the vehicle. At the vehicle, the transmitted signals are received in a process that is sequentially adjusted to take account of the known characteristics of each portion of the known pattern. Anomalies in the pattern of the received signals are detected and, if the anomalies exceed permissible limits, access to said vehicle is blocked.

Abstract: A brake pad wear measuring system for measuring brake pad wear for a vehicle disc brake system includes a first and second coil excitable to create a first and second magnetic field and first and second targets associated with the first and second coils. The coils and targets are configured for movement relative to each other along an axis in response to application of the disc brake system. The relative movement along the axis causes the targets to move within the magnetic fields and affect the inductance of the coils. The first coil and the first target are configured so that the inductance of the first coil is indicative of the amount of brake pad wear. The inductance of the second coil is indicative of component shifting transverse to the axis.

Abstract: A brake pad wear measuring system for measuring brake pad wear for a vehicle disc brake system includes a first coil excitable to create a first magnetic field, and a first target associated with the first coil. The first coil and the first target are configured for movement relative to each other in response to application of the disc brake system. The relative movement causes the first target to move within the first magnetic field and affect the inductance of the first coil. The brake pad wear measuring system also includes a second coil excitable to create a second magnetic field, and a second target associated with the second coil. The second coil and the second target are configured for movement relative to each other in response to application of the disc brake system. The relative movement causes the second target to move within the second magnetic field and affect the inductance of the second coil.

Abstract: A method for locating a vehicle has the following steps: providing a vehicle-based system comprising a transceiver operatively connected with a vehicle control module; providing a mobile device having a GPS module and a wireless communication module; storing on the mobile device a GPS location associated with a location at which the vehicle is parked; and providing to the user via the mobile device instructions on how to locate the vehicle based on the GPS location stored on the mobile device. Further, a method for operating a vehicle as well as a system for locating and/or operating a vehicle are shown.

Abstract: A method for controlling access to a vehicle comprises: storing at a vehicle-based system a GPS location of the vehicle associated with the location at which the vehicle is parked; communicating via the vehicle-based system with a mobile device to obtain a GPS location of the mobile device; and blocking via the vehicle-based system entry to the vehicle if the GPS location of the mobile device is outside a predetermined distance from the stored GPS location of the vehicle. Further, a system for controlling access to the vehicle is shown.

Abstract: A brake pad wear sensing system for measuring brake pad wear for a vehicle disc brake system includes an RF communication circuit for transmitting an RF signal including brake pad wear data. The system also includes a vehicle-based receiver including an RF communication circuit for receiving the brake pad wear data in the RF signal transmitted by the wear sensor. The vehicle-based receiver is operatively connected to a vehicle-based main controller. The vehicle-based receiver transmits the brake pad wear data to the main controller.

Abstract: Apparatus for use in a vehicle equipped with a vehicle-to-vehicle communication system. A remote keyless entry fob is provided for remote control of vehicle access. The fob includes a receiver for receiving a message broadcast by the vehicle-to-vehicle communication system and a memory for storing at least some elements of said message.

Abstract: An antenna system for a vehicle includes a housing defining an interior space having a center. A component is provided for at least one of transmitting and receiving signals indicative of a vehicle condition. A loop antenna is provided in the interior space and electrically connected to the component. A parasitic element is provided for increasing a signal strength of the antenna system. The parasitic element extends from a first end to a second end spaced from the first end by a gap.

Abstract: A brake pad wear measuring system for measuring brake pad wear for a vehicle disc brake system includes a first coil excitable to create a first magnetic field, and a first target associated with the first coil. The first coil and the first target are configured for movement relative to each other in response to application of the disc brake system. The relative movement causes the first target to move within the first magnetic field and affect the inductance of the first coil. The brake pad wear measuring system also includes a second coil excitable to create a second magnetic field, and a second target associated with the second coil. The second coil and the second target are configured for movement relative to each other in response to application of the disc brake system. The relative movement causes the second target to move within the second magnetic field and affect the inductance of the second coil.

Abstract: A brake pad wear sensing system for measuring brake pad wear for a vehicle disc brake system includes an RF communication circuit for transmitting an RF signal including brake pad wear data. The system also includes a vehicle-based receiver including an RF communication circuit for receiving the brake pad wear data in the RF signal transmitted by the wear sensor. The vehicle-based receiver is operatively connected to a vehicle-based main controller. The vehicle-based receiver transmits the brake pad wear data to the main controller.