A hydraulic pressure supply system includes a mechanical oil pump; an electric oil pump; an electric motor that drives the electric oil pump; a control device that controls the operation of the electric oil pump; and a hydraulic pressure measurement circuit that measures a hydraulic pressure of the outlet-side pipe of the electric oil pump. The control device starts supplying electric power to the electric motor to thereby start drive of the electric oil pump before the mechanical oil pump stops operating, and limits the power-supply current to the electric motor to a first current or less during a time period between the start of the drive of the electric oil pump and the time when the hydraulic pressure measured by the hydraulic pressure measurement circuit exceeds a prescribed outlet hydraulic pressure.

A cooling lubrication system comprises a dry sump, an oil tank, and a pump system that operates an oil circuit in which an oil pump delivers oil from the dry sump into the oil tank, and the pump system comprises a vane cell pump and a gerotor pump on a shaft.

In one embodiment, there is provided a device for a vehicle, having: a first interface configured to couple to at least one replaceable fluid container for a vehicle comprising a battery, the first interface comprising at least one fluid port configured to couple to at least one fluid port of the replaceable fluid container; a second interface configured to couple to an engine of the vehicle, the second interface comprising at least one fluid port configured to couple to at least one fluid port of a fluid circulation system of the vehicle; a fluid path coupled to at least one fluid port of the first interface and at least one fluid port of the second interface; and at least one electrical pump configured to be powered and/or driven by the battery of the vehicle and to cause fluid flow.

A vehicle cooling system comprises an oil circulation circuit in which a cooling oil is circulated by an electric oil pump to cool a predetermined cooling target with the cooling oil; an oil temperature sensor detecting an oil temperature that is a temperature of the cooling oil; and a control device including a cooling control portion outputting a rotation command for operating the electric oil pump so as to cool the cooling target. The control device includes a pump abnormality determination portion outputting the rotation command to the electric oil pump to determine a presence/absence of abnormality based on a rotation state of the electric oil pump when an operation stop time of the vehicle is longer than a predefined determination permission time and an oil temperature detection value detected by the oil temperature sensor is higher than a predefined determination permission temperature.

It is provided an electric oil pump system and a controlling method of an electric oil pump. The electric oil pump system includes an electric oil pump and an electronic control unit. The electronic control unit is configured to accumulate driving time of the electric oil pump, predict driving time of the electric oil pump that will occur in the future, and determine degradation of the electric oil pump by taking into account an accumulated driving time and a predicted driving time.

An electric drive for a transmission having a housing, a pump drive, and a primary sump configured to hold oil and operatively connected to a vehicle engine. The electric drive includes an oil-cooled electric generator electrically connected to an oil-cooled electric motor by an inverter. The electric generator includes a generator oil output operatively connected to and configured to deliver a flow of oil to a secondary sump located in the housing. The electric motor includes a motor oil output operatively connected to and configured to deliver a flow to the secondary sump. The secondary sump is separate from the primary sump, wherein the oil from the secondary sump is pumped back into the lubrication circuit of the transmission. The secondary sump includes a feature to allow overflow to drain to the primary sump.

Provided is an electric oil pump that does not degrade assembly operability and does not require a complicated configuration. The electric oil pump includes a motor portion that has a motor shaft disposed along a center axis extending in an axial direction; a pump portion that is disposed on one side of the motor portion in the axial direction, is driven by the motor portion via the motor shaft, and suctions and ejects an oil, and an inverter portion that is disposed on one side of the pump portion in the axial direction and drives the motor portion, the motor shaft penetrates through the pump portion, and the electric oil pump further includes a rotation angle sensor that is disposed at the inverter portion and detects a rotation angle of the motor shaft.

In one embodiment, there is provided a device for a vehicle, having: a first interface configured to couple to at least one replaceable fluid container for a vehicle comprising a battery, the first interface comprising at least one fluid port configured to couple to at least one fluid port of the replaceable fluid container; a second interface configured to couple to an engine of the vehicle, the second interface comprising at least one fluid port configured to couple to at least one fluid port of a fluid circulation system of the vehicle; a fluid path coupled to at least one fluid port of the first interface and at least one fluid port of the second interface; and at least one electrical pump configured to be powered and/or driven by the battery of the vehicle and to cause fluid flow.

An adjustable vane pump, in particular an oil pressure pump, with a suction side and a pressure side, with a housing and a rotor supported in the housing so as to be rotatable about a rotor axis. At least one vane is supported for movement in a radial direction. The housing comprises a housing floor and a housing cover transversely to the rotor axis, and an adjustment cage is arranged between the housing floor and the housing cover.

A control device of a hybrid vehicle including an engine, a power transmission device, a mechanical oil pump, an electric oil pump, a first rotating machine, and a second rotating machine, the control device comprises: a hybrid control portion; and a pump control portion controlling the first rotating machine to rotate the mechanical oil pump so as to cause the mechanical oil pump to discharge the hydraulic oil when it is determined that the temperature of the hydraulic oil is lower than the predetermined oil temperature, and controlling the motor dedicated to the electric oil pump to cause the electric oil pump to discharge the hydraulic oil when it is determined that the temperature of the hydraulic oil is higher than the predetermined oil temperature, at the time of running in the motor running mode.