Patent ID: 8187151
Filing Date: 2012-05-29
Classification: F16H,Y10T

Abstract:
1. A method for controlling the oil supply device of an automatic planetary transmission, which comprises a main oil pump (HP), mechanically drivably connected to the drive shaft ( 2 ) of an internal combustion engine (VM), and an auxiliary oil pump (ZP), drivable via a controllable electric motor ( 23 ), and both of the main oil pump (HP) and the auxiliary oil pump (ZP) being hydraulically connected, on a pressure side, to a main pressure line ( 29 ) pressure regulated by a main pressure regulating valve ( 33 ), the automatic transmission (ATG) being part of a parallel hybrid powertrain ( 1 ) of a motor vehicle having an input shaft ( 5 ), which may be connected via a separating clutch (K) to the drive shaft ( 2 ) of the internal combustion engine (VM) and is permanently drivably connected to the rotor ( 4 ) of an electric machine (EM), the method comprising the steps of: determining a current oil requirement (P setting a delivery rate (P setting the delivery rate (P