Bayerische Motoren Werke Aktiengesellschaft

Horst Flechtner

Norbert Peters

Axel Pauly

Karl Rotsch

Steffen L&ouml;schner

Rainer Pollhammer

Hans Heltmann

Thomas Kafer

William Mark Horne

Felix Schramm

A method for determining the mass of a motor vehicle while taking different driving situations into consideration, involving an evaluation of a vehicle acceleration, wherein apart from a driving force of a vehicle drive unit, resistance forces resulting from rotational forces, air resistance, rolling resistance, the slope descending force and a braking force are taken into consideration. Additionally, a multitude of different driving situations may be evaluated, wherein the individual results are stored and combined suitably into a collective mass value. Further, different driving situations can be weighted differently in determining the mass value.

Method for determining the mass of a motor vehicle while taking into account different driving situations

Assembly mounts are stochastically or periodically detuned by changing their spring rate in order to prevent the transient effect of stuttering vibration of the drive assembly of a motor vehicle. The adjustment of the spring rate by at least a factor of 5 takes place for a time period which corresponds to no more than one fifth of the vibration duration of the stuttering movement.

Method for controlling an engine support

Growing community of inventors

Garching, Germany

Horst Flechtner