Aisin Aw Co., Ltd.

Toyota Jidosha Kabushiki Kaisha

Yuichi Seki

Satoru Kasuya

Masashi Kito

Masashi Kitou

Yusuke Takahashi

Ryosuke Kondo

Masaaki Nishida

Nobukazu Ike

Hiroshi Katou

Osamu Murai

Hiroki Shintani

Kazuyuki Noda

Yohei Tada

Hiroshi Kato

Atsushi Honda

Kazutoshi Nozaki

Kohei Tsuda

Hirofumi Ota

Akiharu Abe

Minoru Todo

Toshihiko Aoki

Takuya Ishii

Masafumi Kinoshita

Makoto Iwanaka

Toru Souda

Mitsugi Yamashita

Takayoshi Kato

Akira Noguchi

Taisuke Fukui

Shigeru Sugisaka

Muneyuki Tsumura

A vehicle drive apparatus that includes an engagement device, a rotating electrical machine, and a frictional engagement device on a power transfer path connecting an input drivably coupled to an internal combustion engine and an output drivably coupled to a wheel, wherein: a cooling oil passage provided in an area where the engagement device is arranged and configured such that oil for cooling the rotating electrical machine passes through the cooling oil passage and an inflow suppression provided between the engagement device and the frictional engagement device and configured to suppress occurrence of a situation in which oil passing through the frictional engagement device flows into the cooling oil passage are provided inside the tube.

Vehicle drive apparatus

A hybrid drive device includes: a first one-way clutch; a second one-way clutch; a first power transfer path through which power can be transferred from a rotor to wheels; and a second power transfer path which is composed of an engine rotation transfer member, the first one-way clutch, and a coupling member, through which power can be transferred from an internal combustion engine to an oil pump, and which intersects the first power transfer path at an intersection portion. An engagement element, the first one-way clutch, and the second one-way clutch are disposed on one side of the first power transfer path.

Hybrid drive device

A driven sprocket of a chain driving mechanism is fixed to a rotation shaft between a front pump cover and a converter housing, and the rotation shaft is supported by a first supporting hole of the front pump cover and a second supporting hole of a rear pump cover. The movement of the driven sprocket in such a direction that it approaches the converter housing is restricted by a case side projection formed on the converter housing, and the movement of the driven sprocket in such a direction that it separates from the converter housing is restricted by a cover side projection formed on a bottom surface of the second supporting hole.

Oil pump and power transmitting device equipped with the same

A drive device includes: an oil pump; a first rotation transfer member drivably coupled to the oil pump and driven by at least one of an internal combustion engine and a rotary electric machine; and a second rotation transfer member drivably coupled to wheels and driven by the rotary electric machine. One of the first rotation transfer member and the second rotation transfer member is a pinion. The other rotation transfer member is a carrier that rotatably supports the pinion. The pinion and the carrier are rotated together with each other in the case where the oil pump is driven by the rotary electric machine.

Drive device that transfers rotation of at least one of a rotary electric machine and an internal combustion engine to an oil pump

A power transmission system that includes a torque converter; a transmission having a planetary gear; a case configured to accommodate the torque converter and the transmission; a support having a wall that is fixed to the case between the torque converter and the transmission and a tube that extends in an axial direction from an inner circumferential portion of the wall; a stator shaft that is connected to a stator of the torque converter via a one-way clutch; and a tubular connector that connects the support and a stationary element of the planetary gear together.

Power transmission system

A hybrid drive having a clutch and a rotary electric machine disposed radially outwardly of the clutch so as to at least partially overlap the clutch in an axial direction as seen from a radially outer side, the rotary electric machine having a stator fixed to a case and a rotor coupled to the input member of the automatic transmission device. A clutch lubricating oil hole formed in a center shaft that extends at a center portion of the clutch and the rotary electric machine. A rotary electric machine lubricating oil hole formed in the center shaft. Separation means for separating lubricating oil such that lubricating oil from the clutch lubricating oil hole is led to the clutch and lubricating oil from the rotary electric machine lubricating oil hole is led to the rotary electric machine.

A vehicular power transmission device that includes a parking gear that is drivingly coupled with wheels; a parking pawl that is capable of meshing or unmeshing with or from the parking gear; a hydraulic pressure actuator that unmeshes the parking pawl from the parking gear when a release hydraulic pressure is supplied; a first oil pump that generates a hydraulic pressure; a second oil pump that generates a hydraulic pressure, the second oil pump having a capacity smaller than the first oil pump; a hydraulic pressure control device that is capable of deriving the release hydraulic pressure from the hydraulic pressure generated by the second oil pump or the hydraulic pressure generated by the first oil pump and supplying the release hydraulic pressure to the hydraulic pressure actuator; and a control unit.

Vehicular power transmission device

A hybrid drive apparatus includes a rotary electric machine including a rotor capable of transmitting driving force to at least a speed change mechanism and a rotor hub that holds the rotor; a clutch; an oil hole that supplies oil from a radial inner side of the clutch toward the clutch; and a partition member disposed with a clearance provided in at least a portion in a circumferential direction between the rotor hub and the partition member on a radial inner side of the rotor hub.

Hybrid drive apparatus

A control device that controls a vehicle drive device in which a rotary electric machine is provided in a power transfer path that connects between an internal combustion engine and wheels. Engagement of a second engagement device is started when a change in shift range from a stop range to a running range is detected when output torque of the rotary electric machine is zero with the internal combustion engine rotating and with both the first engagement device and the second engagement device disengaged. Engagement of a first engagement device is started after engagement of the second engagement device is started, and the output torque of the rotary electric machine is increased from zero at the same time as engagement of the first engagement device is started or before engagement of the first engagement device is started.

Control device for vehicle drive device

A control device that controls a vehicle drive device in which a first engagement device, a rotary electric machine, and a second engagement device are arranged in this order from an internal combustion engine on a power transmission path that connects the internal combustion engine to wheels. The control device is configured to determine an operation stop of the internal combustion engine in a state in which torque is transmitted from the internal combustion engine to the wheels, the control device executes rotational speed control that controls output torque of the rotary electric machine such that a rotational speed of the rotary electric machine approaches a target rotational speed and executes torque-down control that causes output torque of the internal combustion engine to decrease.

Control device that can suppress fluctuation of torque transmitted to the wheels

A vehicle hydraulic pressure supply device that includes a mechanical oil pump driven by a drive force source for wheels; an oil passage constitution member in which an oil passage connected to the mechanical oil pump is formed; and a hydraulic control device that controls a hydraulic pressure supplied from the mechanical oil pump via the oil passage constitution member and that supplies the hydraulic pressure to a vehicle drive transmission device.

Vehicle hydraulic pressure supply device

A hybrid drive device having an engine coupling shaft member, a speed change mechanism, a rotating electrical machine, and an engine connecting clutch. A first lubricating oil passage scatters lubricating oil from radially inside to radially outside of first and second friction plates. A first one-way clutch is interposed between an engine coupling shaft member and a coupling member, and is configured to not be engaged when rotation of the engine coupling shaft member becomes lower than rotation of the coupling member. A second one-way clutch is configured not to be engaged when rotation of the rotating electrical machine becomes lower than rotation of the coupling member. An engine driven oil pump generates an oil pressure to be supplied by a driving force of the internal combustion engine or a driving force of the rotating electrical machine regardless of engagement or disengagement of the engine connecting clutch.

A hybrid drive device having a clutch that engages and disengages an output member of an internal combustion engine and an input shaft of an automatic transmission device with and from each other. A rotary electric machine has a stator fixed to a case and a rotor coupled to the input shaft of the automatic transmission device. The rotary electric machine is disposed radially outwardly of the clutch so as to at least partially overlap the clutch in an axial direction as seen from a radial direction. Lubricating oil is supplied from the input shaft of the automatic transmission device to the clutch and the hybrid drive device includes a shield portion that allows the lubricating oil to bypass the rotary electric machine and leads the lubricating oil supplied to the clutch to an oil reservoir.

A hybrid drive device including an electric motor; an automatic transmission; a lubricating oil passage to which a lubricating oil pressure is supplied; and a switching valve that is switched between a first state where the lubricating oil passage communicates with a first lubricating oil passage that guides lubricating oil to the automatic transmission, and a second state where the lubricating oil passage communicates with a second lubricating oil passage that guides the lubricating oil to the electric motor. The electric motor and an internal combustion engine output shaft are operable in conjunction with the automatic transmission. The switching valve is switched from the first state to the second state when a vehicle is in a stationary state or running at a speed of a predetermined value or less including the stationary state of the vehicle.

A friction-plate lubricating device for an automatic transmission that includes a friction engagement element with a plurality of friction plates in which outer friction plates and inner friction plates are alternately disposed; a hub with splines engaged with teeth formed on an inner circumference of the inner friction plates, the hub having the splines on an outer circumference thereof and having uneven portions formed on an inner circumference thereof; and a nozzle that discharges lubricant to the uneven portions. Recesses of the uneven portions serve as oil reservoirs in which the lubricant gathers, and through-holes are formed in bottom surfaces of the recesses. The lubricant discharged from the nozzle is collected in the oil reservoirs formed by the recesses so as to be supplied to the plurality of friction plates of the friction engagement element through the through-holes.

Growing community of inventors

Okazaki, Japan

Yuichi Seki