Title:
REGULATION METHOD FOR THE HYDRAULIC SUPPORT OF AN ELECTRIC DRIVE
Document Type and Number:
WIPO Patent Application WO2002064345
Kind Code:
A8
Abstract:
The invention relates to a regulation method for the hydraulic support of an electric drive. The force of an electric motor whose rotational movement is translated into a longitudinal movement via a transmission and the force of a piston of a hydraulic cylinder act upon an axially displaceable machine part in the longitudinal direction. The force exercised by the hydraulic motor is limited to a value at which the transmission is not yet damaged. In order to limit the force component supplied by the electric motor, a regulation difference is established from the desired value for the force acting upon the machine part in the axial direction and the actual value of said force. Said difference controls the sum of the force components acting upon the machine part in the axial direction. A desired value for the force acting upon the piston in the axial direction is established from the actual value of the force acting upon the machine part in the axial direction and a value that takes the mechanical stability of the transmission into account. A regulation difference is established from the desired value for the force acting upon the piston in the axial direction and its actual value. Said difference controls one of the force components acting upon the machine part in the axial direction.
Inventors:
DANTLGRABER JOERG (DE)
Application Number:
PCT/EP2002/000678
Publication Date:
December 19, 2002
Filing Date:
January 24, 2002
Export Citation:
Assignee:
MANNESMANN REXROTH AG (DE)
DANTLGRABER JOERG (DE)
DANTLGRABER JOERG (DE)
International Classes:
B29C45/50; B29C45/76; (IPC1-7): B29C45/50
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