Continental Teves, Ag and Company Ohg

Mannesmann Vdo Ag

Continental Automotive Gmbh

Vdo Adolf Schindling Ag

Peter Säger

Ulrich Stählin

Helmut Fennel

Andreas Köbe

Martin Griesser

Peter Lauer

Vladimir Koukes

Stefan Stölzl

Thomas Landsiedel

Andreas Heise

Ralph Gronau

Frank Edling

Stefan Kammann

Markus Aunkofer

Ralf Hartmann

Markus Neumann

Wolfgang Erler

Lothar Keller

Marco Bös

Dirk Leise

Lutz Breyer

Jens Bachon

The invention relates to wireless vehicle-to-X communication by means of radio key (RKE) with a transceiver. The radio key transceiver is designed to send and receive not only data associated with the keyless driving authorization but also vehicle-to-X communication data. The radio key X communication can be used between two vehicles equipped with this radio key communication technique in order to communicate data such as positions, weather conditions or warnings quickly and reliably. This wireless communication technique using radio keys can also be used for coordinating emergency services when searching for an accident scene.

Vehicle-to-X communication by means of radio key

Disclosed is a tire pressure monitoring system for motor vehicles, including a central unit () with at least one trigger module (), which is integrated into the central unit or connects through control lines () to the central unit, and with at least one tire module () arranged in a vehicle wheel (), with the tire module being in communication with the central unit and the trigger module by means of wireless transmission technology, and with the tire pressure monitoring system including fewer trigger modules than tire modules.

Tire pressure monitoring system and method for the allocation of tire modules in a tire pressure monitoring system

Disclosed is a tire pressure monitoring device for a motor vehicle. A tire pressure monitoring system with direct measurement includes a transmission device for transmitting tire pressure values determined by pressure sensors, and a tire pressure monitoring system with indirect measurement that operates on the basis of wheel speed sensors. The tire pressure monitoring system with direct measurement includes a tire pressure measuring device for measuring a tire pressure value only on each wheel of a driven vehicle axle and on at most one wheel of a non-driven axle. The tire pressure monitoring system with indirect measurement includes wheel speed sensors on the non-driven vehicle axle.

Device and method for monitoring tyre pressures

The present device relates to a method for automatically determining the installation positions of wheels in a motor vehicle. The motor vehicle has a direct measure tire pressure monitoring system includes individual wheel tire pressure measuring devices and transmitting devices for the transfer of TPMS data containing tire air pressure values and identification numbers of the individual wheels to a receiving and evaluating device installed in or on the vehicle. The motor vehicle also includes an indirect measuring tire pressure monitoring system determining DDS data containing air pressure changes and installation positions from the rotational behavior of the individual wheels. The method includes determining correlation coefficients from the TPMS data and the DDS data by using a correlation function.

Method for automatically determining the fitting positions of tires in a motor vehicle

A method for allocating wheels of a motor vehicle to a respective vehicle axle, each of the wheels includes an inflation tire whose tire pressure is monitored by a tire pressure monitoring device including at least one transmitting module in each wheel, and at least one receiving module arranged at or in the vehicle and one evaluation module, with each transmitting module transmitting tire pressure information and a wheel-specific identification number to the receiving module, which are sent to an evaluation process in the evaluation module, and tire pressure changes of the wheels are considered for the allocation, with the wheels having almost identical tire pressure changes being allocated to one vehicle axle by taking into account a vehicle-specific axle load.

Method for assigning wheels of a motor vehicle to the respective vehicle axle

A method for determining the load exerted on the tire of a motor vehicle or to monitor the tire pressure, wherein during operation of the vehicle the pressure in the individual wheels is detected and the rotational behavior of the individual wheels is monitored, and wherein load distribution characteristic quantities are determined by comparing the rotational behavior or changes in said rotational behavior of the individual wheels during given driving conditions taking onto account preset or learned variables. Ultimately, the load exerted on the tires or pressure loss is determined from the tire pressure and the load distribution characteristic quantities.

Method for determining the load exerted on a vehicle tire

A method and system for the determining in advance of the travel corridor of a motor vehicle for an automatic system for establishing a safe tailing distance in which a signal corresponding to the speed is used to determine a turning radius of the motor vehicle, the travel corridor being determined from the turning radius. For the exact determination of the travel corridor of the motor vehicle, and in order sufficiently to take into consideration the travel dynamics of the motor vehicle, the speed of at least two wheels of the vehicle are measured and the yawing of the vehicle determined from the difference between the two wheel speeds.

Method and system for the determination in advance of a travel corridor

A method for the exact determination of the speed of a rotating part, in particular the speed of the wheel of a motor vehicle, in which discontinuities present on the circumference of the rotating part are scanned without contact, an electric pulse being produced upon the detection of each discontinuity and the number of pulses thus produced being counted. In order definitely to be able to determine the dynamism of a rotating part without manufacturing tolerances of the incremental disks influencing this, the period of time within which all pulses of the rotating part are counted precisely once is determined, and the speed of the rotating part is determined therefrom.

Method and system for determination of speed of revolution of a rotating

A method and a circuit for preventing oscillations of the automotive vehicle having an engine, a controlling element controlling the output power of the engine and a desired-value transmitter, wherein, within a predetermined period of time after a rise of the desired value which is faster than takes place with a predetermined rate of rise, it is checked whether there is a decrease in the desired value which takes place faster than with a predetermined rate of decrease. In the case of the presence of a faster decrease of the desired value, the rate of rise of the desired value fed to the adjusting element is temporarily limited.

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Friedrichsdorf, Germany

Peter Säger