Tenneco Automotive Operating Company Inc.

Flanders' Mechatronics Technology Centre Vzw

Paul Sas

Jan Swevers

Mark Versteyhe

Christophe Lauwerys

Maarten Maurits Van Speybroeck

Gregory Pinte

Wim Symens

Walter Verdonck

Apparatus (control device) and a method for controlling a torque transmitting device such as a brake, wet clutch, dry clutch () during a filling and slip phase is provided, e.g. for coupling a first shaft () to a second shaft () via the wet clutch (). A reference profile () for a control variable is provided, wherein the chronological progress of said control variable influences the position of a piston () for actuating clutch elements (). Each clutch element () is connected to the first shaft () or the second shaft (), with respect to a cylinder () of the wet clutch (), and the control variable is determined during each coupling and a valve () for applying a pressure source to the piston () is operated, wherein the valve () is controlled during each coupling by means of a feed forward closed loop control () such that the control variable follows the reference profile (). Due to the increased control quality by considering non-linear effects by means of the reference profile () for the feed forward closed loop control () at every coupling through learning, the coupling time can be shortened without increasing the risk of an uncomfortable coupling behavior.

Method for controlling a torque transmitting device with learning function

A vehicle suspension system that includes a cylinder, a rod inserted within the cylinder, a piston coupled to the rod and a piston valve which has an input piston current. The suspension system further includes a base coupled to the cylinder, a base valve which has an input base current, and a controller coupled to the piston valve and the base valve. The controller is adapted to generate the input piston current and the input base current based on a generated virtual current.

Linear control of an automobile suspension

Growing community of inventors

Bierbeek, Belgium

Paul Sas