公开(公告)号：US20240426236A1

公开(公告)日：2024-12-26

申请号：US18755114

申请日：2024-06-26

Applicant: ZF Friedrichshafen AG

Inventor： Alexander Paul ,  Juergen Weinrich ,  Martin Rossmann ,  Adam Pauli

IPC: F01P7/16 ,  F01P5/12

Abstract: A method for operating a hydraulic system, in particular a hydraulic system of a motor vehicle, which comprises a hydraulic pump (10) powered by an electric motor (11) operated with rotation-speed regulation, the pump for drawing hydraulic oil from an oil sump (6) and supplying it to at least one assembly (8) that is to be cooled and/or lubricated. As a function of a temperature of the hydraulic oil and as a function of an actual electric current in the electric motor (11) powering the hydraulic pump (10) and/or an actual rotation speed of the hydraulic pump (10) or the electric motor (11) powering the pump, it is determined whether a sufficiently large oil supply is ensured for the at least one assembly (8) that is to be cooled and/or lubricated.