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1. (WO2018036706) MONITORING A HYDRODYNAMIC CLUTCH

Pub. No.:    WO/2018/036706    International Application No.:    PCT/EP2017/066743
Publication Date: Fri Mar 02 00:59:59 CET 2018 International Filing Date: Thu Jul 06 01:59:59 CEST 2017
IPC: F16D 33/08
Applicants: VOITH PATENT GMBH
Inventors: HOFFELD, Herr Harald
Title: MONITORING A HYDRODYNAMIC CLUTCH
Abstract:
The invention relates to a hydrodynamic clutch comprising an input side and an output side, the rotational motions of which are coupled to each other by means of a hydraulic fluid. The invention further relates to a method for determining the degree of filling of the hydrodynamic clutch with fluid, which method comprises steps of periodically sensing a fluid temperature of the hydraulic fluid; determining the rate of heat supplied to the clutch on the basis of the temperature; determining a lambda value on the basis of the rate of heat; and determining the degree of filling on the basis of the lambda value.