Siemens Aktiengesellschaft

The Goodyear & Tire Rubber Company

Continental Automotive France

Continental Automotive Gmbh

Continental Automotive Systems Corporation

Franz Hillenmayer

Martin Fischer

Dominik Fuessel

Christian Kempf

Martin Prenninger

Frank Fischer

Robert Leon Benedict

Peter Ross Shepler

François Gory

Dieter Wagner

Jean-Christophe Deniau

Gregor Kuchler

Joseph Carmine Lettieri

Dominique Luce

Thomas Haas

Michael Hettle

Gero Wuttke

Franck Bigot

Matthias Münch

Manfred Fröhler

Tony W Parsons

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.

Formed flange for pressure monitoring valve stem mount

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.

Device and method for measuring the tread depth of a motor vehicle tire

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

Electronic module for measuring operating parameters of a vehicle wheel, comprising an electronic unit and an inflation valve of the 'snap-in' type

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

Electronic unit for measuring operating parameters of a vehicle wheel, comprising an electronic box and an inflation valve of the snap-in type

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.

Device and method for ascertaining the wheel position of wheels on a wheeled vehicle

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

Device for measuring a tire pressure

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

Device for measuring the tire pressure of any wheel on a motor vehicle and method for operating the device

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.

Method and system for the detection of a pressure drop in a tire

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.

System for monitoring a vehicle with pneumatic tires, signal analysis method, and vehicle tire

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.

System and method for detection of pressure drop in a tire

A housing for a tag assembly comprises an internal chamber defined by sidewalls and a bottom wall; a peripheral flange projecting from the housing; convergent surfaces extending at an upper housing end to an upper surface; and a sensor portal projecting through the housing upper surface in communication with the housing chamber. The housing is positioned within a mold block with the upper housing end resident within a mold block cavity. An upper surface of the peripheral flange and housing sidewall superior to the flange abut sidewall portions of the mold block to isolate the upper housing end with the cavity while carrier strip material is induced into the mold to partially embed the housing therein. An annular apparatus is thus formed comprising an annular carrier strip having a transponder housing at least partially embedded therein in which an upper housing end remains free of the carrier strip.

Tag housing and assembly method for annular apparatus

A method of monitoring a tire pressure, comprises the steps: measuring at least one parameter that influences the tire pressure, calculating the optimum tire pressure &rgr; on the basis of the at least one measured parameter, comparing a measured tire pressure p with the optimum tire pressure &rgr; in order to generate a deviation signal in the event of a predetermined deviation.

Method and system for monitoring a tire air pressure using a counter

A device for detecting the tire pressure of a motor vehicle tire ( ) has an electronic unit ( ) with an antenna ( ) that is connected therewith. The electronic unit ( ) and the antenna ( ) are mounted on an elastic, circular support ( ), which is fixed coaxially to the wheel axle ( ) on the tire sidewall ( ) in proximity of the wheel rim ( ). The support ( ) is fixed to the tire ( ) only with its inner circumferential side while the outer circumferential side protrudes freely into the interior of the tire.

Device for detecting the tire pressure of a motor vehicle tire

Systems and methods for detecting a change of tire state may include measuring at least first and second quantities representing a tire characteristic. A new first value is then calculated by at least, in part, adding the second measured quantity to a previously calculated first value, which has been multiplied by a pre-selected parameter. A second value is then calculated by at least, in part, subtracting the previously calculated first value from the new first value. A change of tire state is indicated when the second value crosses a predetermined threshold value. In an alternative embodiment, the difference between second values for two different tires may be determined and a change of tire state is indicated when this difference crosses a predetermined threshold value.

Growing community of inventors

Burglengenfeld, Germany

Franz Hillenmayer