Daimler Chrysler Ag

Daimler Ag

Ralph Streiter

Dieter Ammon

Friedrich Boettiger

Tobias Schweickhardt

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 regulatable spring-and-damper system in a vehicle comprises a passive spring element and a damping element which is mounted in parallel and is configured with a damping characteristic that can be regulated in a variable manner and is determined by comparison with a reference system that can be actively regulated.

Regulatable spring-and-damper system in a vehicle

An active suspension system for vehicles, particularly motor vehicles, has active supporting assemblies which are arranged between the vehicle body and the vehicle wheels. Each of the assemblies includes a passive spring as well as a lift-adjustable control unit arranged in series thereto. The supporting assemblies are controlled as a function of body accelerations of the vehicle, and low-frequency and higher-frequency fractions of body accelerations, which are taken into account differently. As a result, the vehicle follows the road profile comparatively directly while the comfort is good.

Active suspension system for a vehicle

An active suspension system, particularly for vehicles, having supporting units which each have an actively lift-adjustable regulating unit and a passive spring arranged in series thereto. Preferably, a damper is arranged at least in parallel to the spring. By use of various acceleration sensors, lifting, pitching, rolling, longitudinal and lateral accelerations of the vehicle body can be determined. By use of path sensors, the lifting positions of the supporting units are registered. A signal analysis permits the achievement of a definable suspension characteristic.

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Stuttgart, Germany

Ralph Streiter