Continental Teves, Ag and Company Ohg

Continental Aktiengesellschaft

Vladimir Koukes

Hermann Winner

Helmut Fennel

Andreas Köbe

Martin Griesser

Frank Edling

Peter Lauer

Stefan Stölzl

Robert Schmidt

Jochen Führer

Peter Säger

Ralf Herbst

Mathias Niepelt

Lennert Gootjes

Martin Grieβer

Maik Hofmann

Jörg Cunz

Alfred Eckert

Geoffrey Burke Bauer

Peter Wanke

Markus Irth

Peter Olejnik

Michael Kremer

Frank Schreiner

Alfred Duchow

Michel Wagner

Ines Runge

Rainer Kitz

Joachim Kohn

Franko Blank

Patrick Seiniger

Friedrich Kolb

Peter SÄGER

Method and control device for determining a steering angle of a motor vehicle, wherein a theoretical steering angle is calculated by a vehicle model and a measured steering angle is determined with a steering angle sensor, and the difference between the measured and theoretical steering angles is determined, wherein at least one data record including a number of successive measured values is acquired, and a correction constant for the measured steering angle is determined from the mean value of the differences between the theoretical steering angle and the measured steering angle. According to the invention, a confidence level, which changes incrementally between successive data records, is calculated by travel conditions present during the acquisition of the data record and/or an analysis of the data record.

Determination of steering angle for a motor vehicle

In a method for determining a steering angle for a vehicle, a steering angle is determined using a single-track model of the vehicle, wherein the steering angle is corrected only if the difference between the derivative of a measured steering lock angle and the derivative of a calculated steering lock angle is below a threshold value. Otherwise the measurement is repeated.

System and method for determining a steering lock angle of a vehicle

Disclosed is a method for detection of a pressure loss in motor vehicle tires, which detects pressure loss on at least one vehicle tire based on several parameters, which are calculated from the rolling circumference of the tires. To this end, currently calculated parameters are compared with learnt values of the parameters.

Method for recognition of a pressure loss in motor vehicle tires

A device and method for determining a roll angle of a motorcycle are disclosed. The method includes the step of acquiring a rolling rate ({dot over (&#x3bb;)}) of the motorcycle. A first roll angle variable (&#x3bb;) is determined from the rolling rate ({dot over (&#x3bb;)}). At least one vehicle movement dynamics characteristic variable is determined from a velocity (v), a rotational speed ({dot over (&#x3c8;)}), and/or an acceleration ({umlaut over (z)}, &#xff;) of the motorcycle. A second roll angle variable (&#x3bb;) is determined from one or more vehicle movement dynamics characteristic variables. The roll angle (&#x3bb;) is calculated on the basis of the roll angle variables (&#x3bb;, &#x3bb;).

Method and device for determining the roll angle of a motorcycle

Disclosed is a method of indirect tire pressure monitoring. The method includes: learning test variables (DIAG, SIDE, AXLE), which describe the rotational movements of the wheels; determining rolling circumference differences (&#x394;DIAG, &#x394;SIDE, &#x394;AXLE) from actually determined test variables and the learnt test variables; learning at least one torsion natural frequency ffor at least one tire from the oscillation behavior of the individual tires; determining at least one shift of the torsion natural frequency &#x394;ffrom at least one actually determined torsion natural frequency and from the at least one learnt torsion natural frequency; and combining the rolling circumference differences (&#x394;DIAG, &#x394;SIDE, &#x394;AXLE) with the at least one shift of the torsion natural frequency fin a joint warning strategy for detecting and warning of tire inflation pressure loss.

Method for indirect tire pressure monitoring

Disclosed is a method of improving the recognition of a tire pressure loss in a tire pressure monitoring system in which at least one reference value (A) is formed on the basis of signals representing the rotational speeds of several vehicle wheels. A pressure loss is concluded by comparing a currently determined reference value with at least one reference value if the currently determined reference value exceeds or falls short of a predefined value. A noise analysis of the reference value(s) () is executed and at least one threshold value (T, S) is adjusted () based on the result of the noise analysis ().

Method for improving an indirectly measuring tire pressure monitoring system

An allocation method combines two tire pressure monitoring systems in motor vehicles being equipped with pressure measuring modules. Each pressure measuring module records a value responsive to the tire inflation pressure and sends the latter to a receiving unit connected to an evaluating device together with an individual identification code (IDx) allocated to the respective pressure measuring module. Signals about the rotational speed of each one wheel being sensed by wheel rotational speed sensors are transmitted to the evaluating device, and since the installation positions y of the wheels at the vehicle are known to the evaluating device, the wheels at the vehicle are known, and the allocation method is performed by taking into consideration established probability values W_IDx_y, with the probability values W_IDx_y describing a frequency distribution which indicates how often pressure measuring modules with the identification codes IDx are detected as pertaining to the installation positions y.

Allocation method for a combined tire pressure monitoring system in a motor vehicle

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

Disclosed is a method of monitoring tire pressure monitoring systems in a motor vehicle. The motor vehicle has a tire pressure monitoring system with indirect measurement which detects tire inflation pressure loss on the basis of wheel speed data, and a tire pressure monitoring system with direct measurement (TPMS) which detects tire inflation pressure loss from tire inflation pressure values measured directly by pressure modules on the vehicle tire. According to the method a warning relating to tire inflation pressure loss emitted by a pressure module of the tire pressure monitoring system with direct measurement (TPMS) is not transmitted to the driver until this tire inflation pressure loss is confirmed by the tire pressure monitoring system with indirect measurement or by all pressure modules that are still working in fail-free manner. Also disclosed is a computer program product.

Method for monitoring tyre pressure monitoring systems in a motor vehicle

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

The present invention relates to a method of detecting straight-ahead driving according to a first straight-ahead driving detection method based on information on the rotational speed of a wheel by way of memorizing a curve parameter in a learning phase, in particular in selected driving situations, and the curve parameter is formed from the wheel speed information of one or more axles, and the reciprocal value of the curve radius is calculated from the wheel speed information to determine the curve parameter. The invention also relates to a computer program product comprising an algorithm defined by the above method.

Method for detecting straight-ahead driving based on information on the rotational speed of a wheel

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Darmstadt, Germany

Vladimir Koukes