Abstract: A valve stem for mounting and supporting a tire pressure monitoring assembly includes a flange formed after insertion into the wheel rim for preventing movement caused by forces generated during wheel rotation.

Abstract: A device and a method for measuring the tread depth of a motor vehicle tire. The device includes at least one sensor element which is configured to acquire data on a change of the deformation characteristics of the motor vehicle tire in the area of the tire contact area and can be fixed in the area of the inner side of the motor vehicle tire opposite the tread; and a control and evaluation unit for evaluating and processing the acquired data. The unit is data-connected to the at least one sensor element.

Abstract: A valve stem for mounting and supporting a tire pressure monitoring assembly includes a flange formed after insertion into the wheel rim for preventing movement caused by forces generated during wheel rotation.

Abstract: An electronic module for measuring operating parameters of a vehicle wheel, includes an electronic unit (1), an inflation valve (2) of the “snap-in” type made up of a valve body (3) made of an elastomeric material pierced with an axial bore housing a hollow tubular core (15), and elements for securing the electronic unit (1) and the inflation valve (2) together. The elements for securing the electronic unit (1) and the inflation valve (2) to one another include, a ring (20) secured to the electronic unit (1) and designed to be slidably mounted around the portion of the tubular core (15) that extends in the continuation of the valve body (3), in a position of the electronic unit (1) in which the latter extends in the direct continuation of the inflation valve (2), and elements (13, 25, 26) for assembling the ring (20) of the electronic unit on the valve body.

Abstract: A device and a method for measuring the tread depth of a motor vehicle tire. The device includes at least one sensor element which is configured to acquire data on a change of the deformation characteristics of the motor vehicle tire in the area of the tire contact area and can be fixed in the area of the inner side of the motor vehicle tire opposite the tread; and a control and evaluation unit for evaluating and processing the acquired data. The unit is data-connected to the at least one sensor element.

Abstract: A battery has an at least partially electrically conducting housing, a first charge carrier, a second charge carrier, and a battery cover. The battery cover encompasses a printed circuit board that has a first circuit board contact and a second circuit board contact. The circuit board contacts are electrically connected to the charge carriers.

Abstract: The invention relates to an electronic module for measuring operating parameters of a vehicle wheel, comprising an electronic unit (1), an inflation valve (2) of the “snap-in” type made up of a valve body (3) made of an elastomeric material pierced with an axial bore housing a hollow tubular core (15), and means for securing the electronic unit (1) and the inflation valve (2) together. According to the invention, the means of securing the electronic unit (1) and the inflation valve (2) to one another comprise, on the one hand, a ring (20) secured to the electronic unit (1) and designed to be slidably mounted around the portion of the tubular core (15) that extends in the continuation of the valve body (3 ), in a position of the electronic unit (1 ) in which the latter extends in the direct continuation of the inflation valve (2), and, on the other hand, means (13, 25, 26) of assembling the ring (20) of the electronic unit (1) on the valve body (3).

Abstract: An electronic unit for measuring operating parameters of a vehicle wheel, includes an electronic box (1), an inflation valve (2) of the snap-in type composed of a valve body (3) made of an elastomer material provided with an axial bore housing a hollow tubular core (15), and elements for securing the electronic box (1) and the inflation valve (2). The elements for securing the electronic box (1) and the inflation valve (2) include a bushing (20) secured to the electronic box (1) and adapted to be slidably mounted around a portion of the tubular core (15) which extends as a continuation of the valve body (3) and into a position of the electronic box (1) where the latter extends as a direct continuation of the inflation valve (2), and members (13, 25, 26) for assembling the bushing (20) of the electronic box (1) on the valve body (3).

Abstract: An electronic unit for measuring operating parameters of a vehicle wheel, includes an electronic box (1), an inflation valve (2) of the snap-in type composed of a valve body (3) made of an elastomer material provided with an axial bore housing a hollow tubular core (15), and elements for securing the electronic box (1) and the inflation valve (2). The elements for securing the electronic box (1) and the inflation valve (2) include a bushing (20) secured to the electronic box (1) and adapted to be slidably mounted around a portion of the tubular core (15) which extends as a continuation of the valve body (3) and into a position of the electronic box (1) where the latter extends as a direct continuation of the inflation valve (2), and members (13, 25, 26) for assembling the bushing (20) of the electronic box (1) on the valve body (3).

Abstract: A valve stem for mounting and supporting a tire pressure monitoring assembly includes a flange formed after insertion into the wheel rim for preventing movement caused by forces generated during wheel rotation.

Abstract: A device for converting mechanical energy into useful electrical energy has a first component, a second component that is mechanically linked to the first component, and a mechanical-electrical energy converter. The second component is linked to the first component by way of a movement-damping device in such a way that when it is moving, with a direction of motion, the second component moves relative to the first component and the mechanical-electrical energy converter is mechanically decoupled from the applied forces on the first component and on the second component.

Abstract: Devices and methods are used for ascertaining wheel positions of wheels on a wheeled vehicle. Separate wheel units are connected to each other via a vehicle bus and via an additional supply lead, so that for the purposes of learning the separate wheel units, the separate wheel units are connected to the supply lead successively in a predetermined sequence and provided with a new, individual identity code, or subjected to a wheel-unit-specific dc voltage potential as an identity code by using at least one additional connection.

Abstract: The invention relates to a device for measuring a tire pressure of a tire arranged on a rim (10), having a tire valve (14) arranged in a bore (12) in the rim (10), and a tire pressure sensor unit (16) arranged inside the tire and fastened on the tire valve (14), it being possible to fasten the tire pressure sensor unit (16) in various angular positions with reference to the tire valve (14). It is provided according to the invention that an electric connection (18) exists between the tire pressure sensor unit (16) and the tire valve (14), and that the tire valve (14) is provided as an antenna for communicating with a receiver and/or transmitter arranged outside the tire.

Abstract: In a tire pressure measurement system a display indicating whether a tire (1) has an inadmissible or incorrect tire pressure and which tire (1) has inadequate tire pressure, is only activated when the driver stops to refuel. One or more sensors (6) are located near to the tank for this purpose and these identify a fuel stop.

Abstract: A system for the detection of a pressure drop in a tire comprising a tire air pressure sensor, a tire temperature sensor and an evaluating unit. The evaluating unit converts the measured air pressure values and temperature values into temperature compensated air pressure values and produces an alarm signal when the temporal fluctuation exceeds an air pressure fluctuation threshold value. The evaluating unit decreases the air pressure threshold value with increasing deviation from the measured temperature compensated air pressure value of a predetermined temperature compensated air pressure reference value. At least one further sensor may be provided for measuring a parameter which influences the air pressure in the tire whereby the evaluating unit corrects the measured and, regarding to the production of an alarm signal, evaluated air pressure according to this parameter.

Abstract: A system for monitoring a vehicle fitted with pneumatic tires has, on at least one wheel of the vehicle, a pressure sensor for sensing the tire inflation pressure, and a deformation sensor joined to the tire for sensing deformations of the tire. A data transmission device transmits the output signals from the sensors to an analysis device, which determines from the output signals a result in dependence on the output signals from the two sensors. Frequency-dependent analysis is employed to derive, from the output signals from the deformation sensor, a signal corresponding to the static loading on the tire and a signal corresponding to the nature of the road surface.

Abstract: Devices and methods are used for ascertaining wheel positions of wheels on a wheeled vehicle. Separate wheel units are connected to each other via a vehicle bus and via an additional supply lead, so that for the purposes of learning the separate wheel units, the separate wheel units are connected to the supply lead successively in a predetermined sequence and provided with a new, individual identity code, or subjected to a wheel-unit-specific dc voltage potential as an identity code by using at least one additional connection.

Abstract: The present invention comprises a system for the detection of a pressure drop in a tire. Herein an evaluating unit determines the temporal modification of the temperature in the tire and produces an alerting signal if the temporal modification of the temperature falls short of a predetermined temperature modification threshold value. In presence of an evaluating signal, the evaluating unit determines the temporal modification of the air pressure and produces an alerting signal, if the temporal modification of the air pressure exceeds an air pressure modification threshold value.

Abstract: A system for monitoring a vehicle fitted with pneumatic tires has, on at least one wheel of the vehicle, a pressure sensor for sensing the tire inflation pressure, and a deformation sensor joined to the tire for sensing deformations of the tire. A data transmission device transmits the output signals from the sensors to an analysis device, which determines from the output signals a result in dependence on the output signals from the two sensors. Frequency-dependent analysis is employed to derive, from the output signals from the deformation sensor, a signal corresponding to the static loading on the tire and a signal corresponding to the nature of the road surface.

Abstract: A ferrite system for a sensor for monitoring tire pressure and/or tire temperature, comprises a transformer (3) whose primary coil is in the form of a tire antenna (29) and a stray coil (5), the transformer (3) and the stray coil (5) both being in the form of toroids and the transformer (3) and the stray coil (5) being arranged coaxially on their central axis (M) on a support (7).