Abstract: A vehicle drive device having an input member coupled to an internal combustion engine; an output member coupled to a wheel; a first rotating electrical machine; a second rotating electrical machine; and a differential gear unit having at least three rotating elements. A dog engagement device is provided on a power transmission path between the input member and an input rotating element. The engagement device includes a state selecting member that switches a state among three states, which are a first state where the input rotating element and the input member are coupled and the input rotating element and a non-rotating member are not coupled, a second state where the input rotating element coupled with both the input member and the non-rotating member, and a third state where the input rotating element and the non-rotating member are coupled.

Abstract: A vehicle drive device configured with an input member coupled to an internal combustion engine, a rotary electric machine, an output member coupled to wheels, and a power transfer mechanism that drivably couples the input member, the rotary electric machine, and the output member. An oil collecting portion is configured to collect oil supplied by rotation of the power transfer mechanism, The collected oil falling passage is configured to cause the oil collected by the oil collecting portion to flow downward to be supplied to a portion of a facing wall surface located above a cylindrical member. A communication oil passage communicates between the gap and the inside housing space is formed at a portion of abutment between the subject support bearing and the support projecting portion.

Abstract: A vehicle drive device configured with reduced axial dimensions, while still having appropriate lubrication. The vehicle drive device is configured with an input shaft coupled to an engine, a rotary electric machine, and an output shaft coupled to wheels. A power transfer mechanism couples input shaft, the rotary electric machine, and the output shaft. A case houses at least the rotary electric machine and the power transfer mechanism. An oil reserving portion capable of reserving oil supplied by rotation of the power transfer mechanism is provided above the rotor shaft inside the case. A communication oil passage is oriented between the oil reserving portion and an inner circumferential space formed inside the rotor shaft. The rotor shaft is disposed to be inserted into the inside housing space, and has a supply communication hole that communicates between the inner circumferential space and the inside housing space.

Abstract: A vehicle drive including an input coupled to an engine, an output coupled to wheels, an intermediate member between the input and output and coupled to a rotary electric machine, a friction engagement device between the input and intermediate member, and a control device. The control device, when starting the engine with the friction engagement device disengaged, engages the friction engagement device when a rotational speed difference between the input and intermediate member is equal to or less than a predetermined value; raises a rotational speed of the input using the rotary electric machine with the friction engagement device engaged to start the engine; and, when a rotational speed of the engine is equal to or more than a predetermined value, reduces an engagement pressure of the friction engagement device and the friction engagement device is returned to the engaged state when the rotational speed difference reaches a threshold.

Abstract: A hybrid vehicle driving apparatus includes: a first rotor shaft of a first electric motor, the first electric motor being disposed on a first axis; a power distribution mechanism that includes a planetary gear device and is disposed on the first axis; an output gear shaft that serves as an output member of the power distribution mechanism and is disposed on the first axis; a counter shaft disposed on a second axis; a second rotor shaft of a second electric motor disposed on a third axis; a power transmission shaft disposed on the third axis; a differential gear disposed on a fourth axis; and a casing that includes a plurality of case members. The output gear shaft, the power transmission shaft, the counter shaft, the differential gear, the first rotor shaft, and the second rotor shaft are rotatably supported by a common case member that is one of the plurality of case members.

Abstract: A drive device includes: an input shaft connected to an engine; a first motor-generator; a second motor-generator; a planetary gear unit including three rotating elements; an output gear connected to the planetary gear unit; an output shaft that transmits rotation of the output gear to a driving wheel; and a control device that controls at least one of the first and second motor-generator. The output gear, the planetary gear unit, and the first motor-generator are coaxial with the input shaft. The planetary gear unit is provided radially inside the first motor-generator and is provided at the same position as the first motor-generator in the axial direction. The second motor-generator is provided on an axis different from the input shaft and the output shaft axes. The control device is provided on the side of the output gear, the planetary gear unit, and the first motor-generator that is opposite the input shaft.

Abstract: A hybrid drive system includes an input member, a rotating electric machine, a power distributing apparatus that distributes and transmits torque that is transmitted to the input member to the rotating electric machine and an output member, an output gear capable of outputting torque transmitted to the output member, and an output bearing that is rotatably supports the output member from the radially inner side. The entire apparatus is arranged overlapping with the output member at a position in an axial direction on the radially inner side of the output member, and a ring gear of the apparatus is integrally provided with the output member, on an inner peripheral surface of the output member. The output gear is integrally provided with the output member, on an outer peripheral surface of the output member, The output bearing and the output gear are arranged overlapping at a position in the axial direction.

Abstract: An electric drive device including an input member drivably coupled to an internal combustion engine, a first rotary electric machine, a second rotary electric machine disposed on an axis different from that of the first rotary electric machine, an output member drivably coupled to wheels and the second rotary electric machine, a power distribution device that distributes torque transferred from the input member to the output member and the first rotary electric machine, and a case.

Abstract: A hybrid drive system includes an input member, a rotating electric machine, a power distributing apparatus that distributes and transmits torque that is transmitted to the input member to the rotating electric machine and an output member, an output gear capable of outputting torque transmitted to the output member, and an output bearing that is rotatably supports the output member from the radially inner side. The entire apparatus is arranged overlapping with the output member at a position in an axial direction on the radially inner side of the output member, and a ring gear of the apparatus is integrally provided with the output member, on an inner peripheral surface of the output member. The output gear is integrally provided with the output member, on an outer peripheral surface of the output member. The output bearing and the output gear are arranged overlapping at a position in the axial direction.

Abstract: A hybrid drive system includes an input member, a rotating electric machine, a power distributing apparatus that distributes and transmits torque transmitted to the input member to the rotating electric machine and an output member, an output gear capable of outputting torque transmitted to the output member, an output bearing that rotatably supports the output member, and a rotor bearing that rotatably supports the rotor. The entire apparatus is arranged overlapping with the output member at a position in an axial direction on a radially inner side of the output member, and a ring gear of the apparatus is integrally provided with the output member, on an inner peripheral surface of the output member. The output gear is integrally provided with the output member, on an outer peripheral surface of the output member. The output bearing and the rotor bearing are arranged overlapping at a position in the axial direction.

Abstract: An information management system includes a storage medium storing position error information of the rotation sensor obtained based on information of the back electromotive force and output information from the rotation sensor in an inspection process in which a back electromotive force is measured by mechanically driving the rotary electrical machine after the rotary electrical machine and the rotation sensor are assembled, wherein the storage medium is provided in a state capable of being read via communication when a control device controlling the rotary electrical machine is assembled with the rotary electrical machine.

Abstract: A vehicle drive including an input coupled to an engine, an output coupled to wheels, an intermediate member between the input and output and coupled to a rotary electric machine, a friction engagement device between the input and intermediate member, and a control device. The control device, when starting the engine with the friction engagement device disengaged, engages the friction engagement device when a rotational speed difference between the input and intermediate member is equal to or less than a predetermined value; raises a rotational speed of the input using the rotary electric machine with the friction engagement device engaged to start the engine; and, when a rotational speed of the engine is equal to or more than a predetermined value, reduces an engagement pressure of the friction engagement device and the friction engagement device is returned to the engaged state when the rotational speed difference reaches a threshold.

Abstract: A power transmission device for a vehicle configured with a rotary power member, and a mechanism configured with a plurality of operational states. A switching shaft changes the operational state of the operating mechanism and is moved by an electric actuator. A control transmission transmits the power from the actuator to the shaft. The housing for the rotary member includes is configured so that the switching shaft projects outwards from the housing. The electric actuator is arranged at a location facing, of a surface of the housing portion of the case, a portion that does not overlap another portion where the switching shaft projects, when viewed in the axial direction of the rotational axis of the rotary member. A part of the actuator is arranged on a case side relative to a vertical line passing through the portion where the switching shaft projects from the housing portion of the case.

Abstract: A vehicle drive system configured with a dynamo within a case. The case is disposed on at least one axial side of the dynamo, and includes a wall portion overlapping the dynamo, which has a section that overlaps with the dynamo as viewed from the axial direction. The wall portion overlapping the dynamo includes a supply flow passage through which lubricating-cooling fluid flows, and which is formed with a first supply portion that supplies lubricating-cooling fluid to a rotor support bearing for the dynamo electric. The first supply portion includes a throttle portion whose flow passage cross-sectional area is small when compared to an upstream-side flow passage cross-sectional area in the flow direction of lubricating-cooling fluid. The supply flow passage includes a second supply portion that is a portion supplying lubricating-cooling fluid to the dynamo and higher than the first supply portion.

Abstract: A vehicle drive apparatus comprising a planetary gear mechanism having a ring gear drive-coupled to one of an output member drive-coupled to wheels and a rotary electrical machine, a sun gear drive-coupled to the other of the output member and the rotary electrical machine, and a carrier drive-coupled to an engine and rotatably supporting a plurality of pinion gears, the apparatus. The vehicle drive apparatus having an outward receiver comprising a receiving portion opening outward in an apparatus radial direction and being provided on the carrier, the apparatus radial direction being a radial direction of the ring gear; a fluid supply part supplying lubricating fluid to an opening of the receiving portion of the outward receiver; and a bearing lubricating passage which is a route of lubricating fluid connecting the receiving portion of the outward receiver with a pinion bearing of each of the pinion gears.

Abstract: The present invention relates to an electrical connection device that connects a rotating electrical machine and an inverter within a housing. The electrical connection device is configured with a first bus bar connected to a terminal of the rotating electrical machine such that the first bus bar that is insulated from the housing, and a second bus bar that is connected to a terminal of the inverter device such that the second bus bar is also insulated from the housing. An insulating connection member is configured to connect the first bus bar and the second bus bar. The first bus bar and second bus bar are housed within the housing such that they face each other to form a gap between them. The connection member is configured to pass through a wall of the housing so as to electrically connect the first and second bus bars.

Abstract: A drive unit includes a rotating electrical machine; a rotation sensor that detects a rotational position of a rotor of the rotating electrical machine, and a storage medium. In an inspecting step of measuring a counter electromotive force by mechanically driving the rotating electrical machine after the rotating electrical machine and the rotation sensor are assembled together, positional error information of the rotation sensor obtained based on information of the counter electromotive force and output information from the rotation sensor is stored in the storage medium. The storage medium is integrally provided to the drive unit in such a state that the storage medium is readable upon assembling a control device that controls the rotating electrical machine.

Abstract: A hybrid drive system includes an engine; at least one rotating electric machine, wherein the engine and the at least one rotating electric machine are capable of driving a vehicle; and a controller. The controller starts a load limit control that limits a load exerted to the rotating electric machine when a temperature of the rotating electric machine exceeds a load limit start temperature; detects a loading state or a towing state of the vehicle; and determines the load limit start temperature based on the loading state or the towing state detected.

Abstract: An oil supply system for a vehicle includes: a mechanical oil pump driven by an engine; an electric oil pump driven by an electric motor; a hydraulic pressure control circuit supplied with oil from the mechanical oil pump and the electric oil pump through an oil discharge passage for the mechanical oil pump and an oil discharge passage for the electric oil pump, which are connected to each other; a lubrication/cooling oil passage that is supplied with the oil from the hydraulic pressure control circuit; and a communication passage that provides communication between the lubrication/cooling oil passage and the mechanical oil pump. With this oil supply system, it is possible to prevent the electric oil pump from causing air-sucking noise, for example, in the motor-power cruise mode, and to improve the rising characteristics of the hydraulic pressure produced by the mechanical oil pump during startup of the engine.

Abstract: A drive device in which a driving force transfer mechanism is accommodated in a case that includes a main body portion having an opening portion and a cover portion attached to the opening portion, and the cover portion is provided with an oil pump. The drive device is configured with a pump cover attached to a case inner surface of the cover portion, which forms an inner surface of the case, such that the pump cover is accommodated in a case internal space surrounded by the main body portion and the cover portion. A pump chamber of the oil pump is formed by a recess that is formed in at least one of a mating surface of the cover portion and a mating surface of the pump cover in a bonding portion between the cover portion and the pump cover.