Daimler Ag

Daimler-benz Ag

Mercedes-benz Aktiengesellschaft

Dieter Ammon

Magnus Rau

Avshalom Suissa

Claus-Michael Hainbuch

Manfred Steiner

Friedrich Boettiger

Carsten Knoeppel

Karl-Eugen Laubacher

Ralph Streiter

Jens Kalkkuhl

Daniel Keppler

Peter Bosch

A method and device for the combined determining of a momentary vehicle roll angle of a motor vehicle and a momentary roadway cross slope of a curved roadway section traveled by the motor vehicle is disclosed. The momentary vehicle roll angle and momentary roadway cross slope are determined from chassis data and transverse dynamics data of the motor vehicle.

Method for combined determining of a momentary roll angle of a motor vehicle and a momentary roadway cross slope of a curved roadway section traveled by the motor vehicle

A method and device for determining a target curve incline of a motor vehicle during traveling of a curved roadway section is disclosed. A momentary transverse acceleration of the motor vehicle is determined depending on a momentary speed of the motor vehicle and a momentary roadway curvature of the curved roadway section determined by an optical detection system. A momentary target curve incline for the motor vehicle is calculated from the determined momentary transverse acceleration. A modified momentary target curve incline is calculated by weighting of the calculated target curve incline with a speed-dependent target curve incline weighting factor. The momentary roadway curvature is determined by additionally using a vehicle navigation system of the motor vehicle.

Method for determining a target curve incline of a motor vehicle during traveling of a curved roadway section

In a method and apparatus for influencing transverse dynamics of a vehicle, for a chassis intervention is carried out when an intervention condition is met. The intervention condition is met when the value of a determined transverse dynamics disturbance variable is higher than a disturbance variable threshold value, and when one or a group of the following criteria is met:

Method and apparatus for influencing the transverse dynamics of a vehicle

An influencing device for influencing an active chassis that includes a plurality of controllable spring or damper units of a vehicle is provided. The influencing device includes a roadway sensor that produces sensor data relating to a roadway located in front of the vehicle in a direction of travel, the sensor data being used to acquire a roadway profile. The influencing device also includes a pilot control unit that determines, as a function of the acquired roadway profile, a pilot control variable that is used to adapt the setting of the spring or damper units to the acquired roadway profile. An input signal for a vehicle body control system, which is used to control the position of the vehicle body, is calculated on the basis of the pilot control variable.

Influencing device for influencing an active chassis system of a vehicle

A method is provided for operating an active chassis system, in which wheels of at least one axle are arranged with a toe-in angle, and actuating elements which interact with supporting assemblies which are arranged between the wheels and a vehicle body. Wheel contact forces of the wheels assume different values as a result of the actuating elements being actuated. A side force is generated at the wheels which have a toe-in angle, and a resulting yaw moment is produced. A desired yaw rate is determined based upon information from a device which is arranged in the vehicle in order to determine the profile of the roadway in a control unit, and the wheel contact forces are set as a function of the desired yaw rate.

Method for operating an active chassis system

The invention provides a process for the advance recognition of the hydroplaning of a vehicle tire on a wet road, in which the rotational speed of the wheel carrying the tire is sensed by a rotational speed sensor and the frequency spectrum of the rotational wheel speed is evaluated. According to the invention, in the frequency range above 20 Hz, the natural resonance behavior of the rotational tire vibrations is evaluated continuously, and a conclusion on hydroplaning of the tire is drawn from detuning of the rotatory natural frequencies.

Process for the early recognition of hydroplaning of a vehicle tire on a

The invention relates to a method for controlling vehicle brake pressure as a function of the deviation of the actual slip of wheels relative to a prescribed desired slip. The desired slip is determined from the wheel speeds in such a way that the cornering forces occurring between wheel and roadway given the specific desired slip values and the adhesion conditions occurring, ensure stable handling.

Method for controlling vehicle brake pressure as a function of the

The invention relates to a method for determining quantities which characterize driving behavior. Signals indicative of steering angle, longitudinal speed of the vehicle, and two transverse accelerations located one behind the other in the longitudinal direction of the vehicle, are fed to a computing device. The measured quantities are used to derive further quantities in the computing device using vehicle-specific quantities and a vehicle model. Furthermore, at least one of the further quantities is the sideslip angle or the yaw-angle velocity which are determined and output by the computing device.

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Remseck, Germany

Dieter Ammon