Zf Cv Systems Europe Bv

Wabco Gmbh

Andreas Thimm

Johann Lucas

Przemyslaw Zak

Detlef Schmidt

Ingo Jovers

Jens Willms

Sebastian Jermis

Stefan Filter

Nosrat Moradi Dehdezi

Britta Warnecke

Hans-Jürgen Binarsch

A mechanically suspended vehicle has a travel measurement device (), a control unit () and an algorithm stored in the control unit (). The algorithm performs a method for determining an axle load. In a first test routine a level signal of a travel measurement device is acquired and evaluated, wherein, in a loading operation of the vehicle, a loading curve (F_i) is determined, and, in an unloading operation of the vehicle, an unloading curve (F_u) is determined. The values of the two curves are used to calculate an averaged load-travel characteristic curve (F_m) to be stored in the control unit. After each start of the vehicle, an axle load determination routine is repeated cyclically, and axle load values are continuously determined with the averaged load-travel characteristic curve (F_m). An axle load average value is calculated from the axle load values and displayed as the current axle load value.

Method for determining an axle load on a mechanically suspended vehicle

An air suspension control system (ECAS, electronic controlled air suspension) () for a utility vehicle, such as a truck or the like, or for a passenger car, includes a main control unit () for operating the air suspension control system () and at least two auxiliary control units () connected to the main control unit () via a data link (). The auxiliary control units () each have at least one output () for actuating at least one actuator () which can be connected to the output (), in particular an adjustment drive () for a valve (). Furthermore, at least one function for generating control signals at the output () can be stored in the auxiliary control units (), and the main control unit () is adapted to call up and/or to parameterize at least the stored functions by transmitting commands via the data link ().

Air spring system and control

Growing community of inventors

Sarstedt, Germany

Andreas Thimm