Abstract:
The invention relates to a conveying device (2) for conveying oil from an oil sump (3) in a motor vehicle, which conveying device has an oil pump (6) having two pressure stages (15, 16). The pressure stages (15, 16) convey oil from a common suction connection (17) to different outlet connections (18, 19). The conveying of oil by the pressure stages (15, 16) occurs with different delivery pressures and different delivery volumes. Furthermore, the conveying device (2) has a direct drive (7), which is coupled to an internal combustion engine (1), and an electric drive (8) that can be activated.
Abstract:
An electric pump unit for a transmission, which supplies a hydraulic pressure to the transmission, includes: a pump which takes in and discharges oil; and a pump driving electric motor including a motor shaft connected to the pump, a motor rotor fixedly provided on the motor shaft, and a motor stator disposed around a circumference of the motor rotor. The pump and the electric motor are integrated with a lid that tightly closes an opening in a recess portion which is formed on a transmission housing of the transmission and into which the oil is introduced, and are accommodated within the recess portion.
Abstract:
Kraftfahrzeug-Antriebsstrang (10) mit einer Kupplungsanordnung (14), mit einer Getriebeanordnung (16), die mehrere Gangstufen aufweist, die mittels einer Schaltanordnung (26) ein- und auslegbar sind, und mit einer Hydraulikanordnung (40) zum Betätigen der Schaltanordnung (26) und zum Bereitstellen von Kühlfluid, wobei die Hydraulikanordnung (40) eine Pumpenanordnung (60) aufweist, die mittels eines einzelnen Elektromotors (62) angetrieben ist und einen ersten Pumpenanschluss (64) und einen zweiten Pumpenanschluss (66) aufweist, wobei der erste Pumpenanschluss (64) mit einer SchaltBetätigungsanordnung (28) verbindbar oder verbunden ist, um die Schaltanordnung (26) zu betätigen. Dabei ist der zweite Pumpenanschluss (66) mit einer zu kühlenden Anordnung (14; 16, 32) verbindbar oder verbunden, um der zu kühlenden Anordnung (14; 16, 32) Kühlfluid bereitzustellen.
Abstract:
A plug-in hybrid electric vehicle powertrain comprises an internal combustion engine (1) and an electric vehicle traction motor, an engine lubrication oil pump (2) in fluid communication with a lubrication oil flow circuit for the internal combustion engine, an electric oil pump drive motor (3) drivingly connected to the lubrication oil pump (2), and a powertrain control module (4). The powertrain control module (4) is configured to start the electric oil pump drive motor (3) immediately upon the initial start of the vehicle.
Abstract:
Die Erfindung betrifft eine Pumpenantriebsanordnung mit einem Pumpenantriebselement (70), das durch eine erste oder eine zweite Antriebseinrichtung angetrieben ist. Die Erfindung zeichnet sich dadurch aus, dass das Pumpenantriebselement (70) durch ein Kopplungselement (84) entweder über eine erste Freilaufeinrichtung (91) mit der ersten Antriebseinrichtung oder über eine zweite Freilaufeinrichtung (92) mit der zweiten Antriebseinrichtung drehfest verbindbar beziehungsweise verbunden ist.
Abstract:
Transmission (7) for a road vehicle (1) with hybrid propulsion; the transmission (7) having: a gearbox (10) provided with one primary shaft (15), one secondary shaft (19, 20) and at least one pump (25, 26) actuated by an activating shaft (27); at least one clutch (17) connected to the primary shaft (15) and having a part which is normally conductive and can be connected to a drive shaft (6) of a thermal engine (5); a reversible electric machine (8) having a shaft (23) mechanically connectable to the primary shaft (15); a first mechanical transmission (28) which transmits the motion from the normally conductive part of the clutch (17) to the activating shaft (27); and a second mechanical transmission (30) which transmits the motion from the shaft (23) of the electric machine (8) to the activating shaft (27).
Abstract:
An automatic transmission for a hybrid vehicle includes a hydraulic circuit (110) having a source of pressurized fluid (112), an actuation circuit (114) that delivers pressurized fluid to actuate components of the transmission, and a cooling circuit (116) used to cool components of the transmission. The source of pressurized fluid includes a first pump (134) that is operatively driven by the internal combustion engine of the hybrid vehicle and a second pump (136) that is operatively driven by the electric motor (138). The second pump (136) acts to supply pressurized fluid to the cooling circuit (116) when the first pump (134) is operatively driven by the internal combustion engine under certain predetermined conditions.
Abstract:
[Task] A required draining capacity of an electrically-powered oil pump is reduced and a small sizing of the electrically-powered oil pump is achieved by devising how to issue a starting frictional element engagement pressure command value. [Means for solving the problem] An engine is restarted in response to an idle stop OFF command at t1 so that a gear shift control purpose hydraulic pressure is raised according to a working oil from an engine driven oil pump. An idle stop release time control of the engine is allowed according to a torque down unnecessary determination when a gear shift control purpose hydraulic pressure has reached to a set hydraulic pressure at t2. In a case where this allowance causes an engine torque Te to be raised from a torque down value toward a driving operation corresponding value by a predetermined gradient ΔTe1, a command value of a starting frictional element engagement pressure P S is set to a control maximum value (a drain port opening angle of a clutch hydraulic pressure control valve for a clutch hydraulic pressure (an engagement pressure) command value is made small as compared with that in a case of an ordinary control (is made difficult to drain)) during the idle stop control including during the idle stop release time control. Thus, when starting frictional element engagement pressure P S is controlled upon receipt of this command value, the working oil from the electrically-powered oil pump is not needed to be drained. Consequently, the electrically-powered oil pump is not needed to discharge this draining working oil and the small-sizing can be achieved.