Method for controlling a clutch actuator
AssigneeSchaeffler Technologies AG & Co. KG
InventorsChristian Eberle, Henrik Beier
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Abstract
A method controls a clutch actuator, comprising a clutch cylinder piston of a clutch cylinder, which clutch cylinder piston moves an actuation element of a friction clutch along an actuation path, and comprising a hydraulic pump, which actuates the clutch cylinder piston by means of a pressure medium pumped along a hydrostatic path and which is operated by means of an electric motor. In order to determine an actuation state of the friction clutch, the operating state along the actuation path is estimated by means of a pressure medium volumetric flow rate produced by the pump and by means of a leakage volumetric flow rate of the pump.
Claims16
A method for controlling a clutch actuator having a clutch cylinder piston of a clutch cylinder, which clutch cylinder piston actuation element moves an actuation element of a friction clutch along an actuation path, and having a hydraulic pump, which actuates the clutch cylinder piston by a pressure medium pumped along a hydrostatic path and which is operated by an electric motor, wherein an operating state of the friction clutch along the actuation path is estimated using pressure medium volumetric flow rate produced by the pump and a leakage volumetric flow rate of the pump.
Dependencies are inferred from the claim text.