Patent application number | Description | Published |
20120032538 | ROTATIONAL ELECTRICAL MACHINE AND VEHICLE DRIVE DEVICE - A rotating electrical machine configured with a rotor and stator. The rotor is rotatably supported radially inside of a stator that has coil end portions on both sides in an axial direction, and which is structured so that oil is supplied from an axial first direction side to the coil end portions on the both sides in the axial direction. A communication oil passage provided in at least one of the rotor and the rotor support member, is configured to communicate with a first opening and a second opening from an oil collecting portion. The first opening opens radially inside the coil end portion on the axial first direction side, and the second opening opens radially inside the coil end portion on an axial second direction side, which is the other side in the axial direction of the rotor. | 02-09-2012 |
20120032544 | VEHICLE DRIVE DEVICE - In a rotating electrical machine configured with a rotor and stator, a lubricant supply portion is configured to supply a lubricant from within. A communication passage is provided in either the rotor support member or the sensor rotor, and is configured so as to provide a passage from a first space, which extends radially outward from the axial first direction side of the sensor rotor and is formed between the support wall and the rotor support member, with a second space, which is formed between the sensor rotor and the rotor support member. The case of the machine has a support wall extending at least in a radial direction to an axial first direction side, which is one side in an axial direction of the rotating electrical machine, and after lubricating the bearing, the lubricant is discharged from the second space to the first space through the communication passage. | 02-09-2012 |
20120080248 | Vehicle drive device - A vehicle drive device configured with an input member drivably coupled to an internal combustion engine. The drive device is also configured with an output member drivably coupled to wheels, a friction engagement device that selectively drivably couples the input member and the output member to each other, and a rotary electric machine provided on a power transfer path connecting between the input member and the output member. On the vehicle drive device, a housing oil chamber houses at least friction members of the friction engagement device and is filled with oil, a housing space houses the rotary electric machine, and there exists a first oil passage through which oil is supplied to the housing oil chamber. There is also a second oil passage through which oil is discharged from the housing oil chamber and a third oil passage through which oil is supplied to the housing space. | 04-05-2012 |
20120080286 | Vehicle Drive Device - A vehicle drive device configured with an input member drivably coupled to an internal combustion engine, an output member drivably coupled to wheels, and a friction engagement device that selectively drivably couples the input member and the output member to each other. A rotary electric machine is connected between the input member and the output member. A housing oil chamber houses at least friction members of the friction engagement device and is filled with oil. A housing space houses the rotary electric machine, a first oil passage through which oil is supplied to the housing oil chamber, a second oil passage through which oil is discharged from the housing oil chamber; and a third oil passage through which oil discharged from the second oil passage is supplied to the housing space. | 04-05-2012 |
20120088621 | Transmission apparatus and shift control apparatus - A speed change device configured with an input member and an output member. The speed change device includes a speed change mechanism in which a plurality of shift speeds are established in accordance with respective engagement states of a plurality of friction engagement elements to transfer rotation of the input member to the output member. A slip travel mode is provided in which the vehicle is run while transferring torque from the input member to the output member with one of the friction engagement elements for establishment of each of the shift speeds caused to slip. A slip engagement element is the friction engagement element to be engaged commonly for establishment of at least a forward start shift speed and a reverse start shift speed. | 04-12-2012 |
20120090425 | HYBRID DRIVE SPEED CHANGE DEVICE - To provide a hybrid drive speed change device in which a rotation sensor can be disposed appropriately from the viewpoint of reducing the axial dimension of the device. A rotary electric machine MG is disposed coaxially with an input shaft M, and includes a stator St and a rotor Ro provided radially inwardly of the stator St. An oil pump | 04-19-2012 |
20120096985 | HYBRID DRIVE DEVICE - A hybrid drive system includes an input shaft of an automatic transmission, a clutch, an intermediate shaft, and a first gear disposed on a first shaft coaxial with an engine output shaft. An electric motor and a second gear provided on an output shaft of the electric motor are disposed on a second shaft. A rotation of the engine output shaft is transmitted to the input shaft through the clutch and the intermediate shaft, and a rotation of the electric motor is transmitted to the input shaft through the second gear and the first gear. The intermediate shaft is supported by a first support wall through a bearing. The clutch is disposed between the intermediate shaft and the engine output shaft, and a front side of the input shaft is rotatably supported by a second support wall, and connected to a rear side of the intermediate shaft through a spline. | 04-26-2012 |
20120211322 | FRICTION-PLATE LUBRICATING DEVICE FOR AUTOMATIC TRANSMISSION - 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. | 08-23-2012 |
20120217122 | VEHICLE DRIVE DEVICE - A vehicle drive device comprising a friction engagement device disposed on a power transfer path between an engine and wheels and including a first friction plate drivably coupled to a power transfer path on the engine side and a second friction plate drivably coupled to a power transfer path on the wheels side, a rotary electric machine drivably coupled to the power transfer path on the wheels side, a case member including an internal space where the first and second friction plates of the friction engagement device are housed, the internal space being configured to dip the first and second friction plates in oil and a communication mechanism that regulates communication between the internal space of the case member and an external space, the communication mechanism allowing the oil to be discharged from the internal space to the external space when communication between the internal and external spaces is allowed. | 08-30-2012 |
20120217825 | VEHICLE DRIVE SYSTEM - A vehicle drive system includes a rotor support that is more radially inward than the stator and supports the rotor; a supply that supplies oil to the rotor support bearing, the rotor support bearing includes a discharge that discharges oil supplied from the supply, the rotor support includes an opposing surface that opposes the discharge-side surface, and an opposing extension surface that extends radially from the opposing surface. The stator includes a coil end that protrudes from the stator core toward the first axial direction. A radial outer end of the opposing extension surface is more radially inward than, and overlaps with, the coil end, with a radial space between the radial outer end and the coil end. The discharge-side surface is disposed more toward the second axial direction than the radial outer end of the opposing extension surface. | 08-30-2012 |
20120242198 | VEHICLE DRIVE DEVICE - A vehicle drive device including a rotating electrical machine having a rotor and a stator, as a driving source force of wheels; a rotation sensor that detects a rotational position of the rotor with respect to the stator; a rotor support member that supports the rotor at a position radially inside the stator; an oil pump having a pump rotor disposed on a same axis as the rotating electrical machine and drivingly coupled to the rotor support member, and a pump case accommodating the pump rotor; and a support bearing that is placed between the pump case and the rotor support member in a radial direction, and that rotatably supports the rotor support member with respect to the pump case. The rotation sensor and the support bearing are positioned so as to overlap each other as viewed in the radial direction. | 09-27-2012 |
20120247106 | HYBRID DRIVE DEVICE - 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. | 10-04-2012 |
20120247905 | HYDRAULIC CLUTCH AND TRANSMISSION DEVICE PROVIDED WITH THE SAME - A hydraulic clutch including a clutch drum with an outer cylinder fitted with a plurality of clutch plates and a side wall; a clutch piston that defines together with the clutch drum an engagement oil chamber, and moves in an axial direction to press the clutch plates by hydraulic pressure supplied to the engagement oil chamber; and a cancel plate that defines together with the clutch piston a cancel oil chamber that cancels centrifugal hydraulic pressure. The side wall of the clutch drum is formed with a first oil passage that radially extends and is in communication with the engagement oil chamber, and a second oil passage that radially extends and is in communication with the cancel oil chamber. One of the first and second oil passages is at least partially included in a range of an axial width of the other of the first and second oil passages. | 10-04-2012 |
20120247907 | TRANSMISSION DEVICE - A transmission device includes a first clutch and a second clutch that is disposed circumferentially inward of the first clutch so as to overlap with the first clutch as viewed from a radial direction. The first clutch includes a first clutch drum, a first clutch piston that is axially movable by hydraulic pressure supplied to a first engagement side oil chamber on an inner circumferential side of the first clutch drum, and a first cancel plate that defines together with the first clutch piston a first cancel oil chamber that cancels centrifugal hydraulic pressure. The first cancel plate is fastened between the first clutch drum and a second clutch drum of the second clutch. | 10-04-2012 |
20120247911 | HYBRID DRIVE DEVICE - A hybrid drive device including an electric motor; an automatic transmission; a first oil passage; and a second oil passage branched from the first oil passage and that guides the oil to a friction element that is engaged for establishment of a speed in the automatic transmission. An orifice is provided in the first oil passage downstream of the second oil passage. A switching valve for the friction element is provided in the second oil passage to be switched between communicated and blocked states. A hydraulic servo for the friction element is supplied with a hydraulic pressure to control the friction element between engaged, disengaged, and slip states. The switching valve includes a control oil chamber that communicates with the hydraulic servo, and is switched into the blocked state when the friction element is disengaged and into the communicated state when the friction element is engaged or the slip state. | 10-04-2012 |
20130008759 | Hybrid drive device - There is provided a first and second bearing supporting a clutch case at first and second axial sides in a radial direction, a rotor of a rotary electrical machine is supported by the clutch case, a gap between an outer peripheral face of a pump drive shaft 10 and an inner peripheral face of a drive shaft insertion hole | 01-10-2013 |
20130284557 | VEHICLE DRIVING FORCE TRANSMISSION DEVICE - Leakage oil from a hydraulic actuator operating a dry clutch is prevented from leaking into a dry space where the dry clutch is placed. A space formed by the back surface of a piston of a hydraulic actuator, a coupling plate, and a cylinder portion is sealed by a first seal portion and a second seal portion. Oil leaked from a hydraulic oil chamber through the piston is stored in the space, and is returned to a wet space in a case through an oil passage. | 10-31-2013 |
20130316866 | POWER TRANSMISSION DEVICE - In a power transmission device, a breather chamber having an opening on its one end side and extending coaxially with the countershaft is formed in a countershaft that transmits power from an output shaft of an automatic transmission to a differential mechanism. An inner end of a vent pipe placed so as to extend through a transmission case and that includes the inner end and an outer end each having an opening is inserted in the opening of the breather chamber. A plug, which closes a gap between an inner peripheral surface of the breather chamber and an outer peripheral surface of the inner end of the vent pipe so as to allow air to flow between the inside of the transmission case and the breather chamber and so as to restrict entrance of hydraulic oil into the breather chamber, is placed in the opening of the breather chamber. | 11-28-2013 |
20130333997 | TRANSMISSION DEVICE - A fastening portion is formed from a rivet hole of a first side wall portion of a clutch drum, a rivet hole of a second side wall portion of a clutch drum, and a rivet that is inserted into the rivet hole and the rivet hole to hold together the first side wall portion and the second side wall portion. The fastening portion is provided between a first engagement side oil chamber enclosed by the clutch drum and a clutch piston, and a second engagement side oil chamber enclosed by the clutch drum and a clutch piston. | 12-19-2013 |
20140246935 | HYBRID DRIVE APPARATUS - A hybrid drive apparatus, which includes a speed change mechanism disposed on a first axis coaxial with an engine output shaft and a rotary electric machine disposed on a second axis parallel to the first axis, including: a case main body which accommodates the speed change mechanism and the rotary electric machine and has an opening portion opening on one side of the speed change mechanism in an axial direction; and a cover member which closes the opening portion of the case main body, wherein the rotary electric machine is disposed such that a portion thereof overlaps the cover member when viewed in the axial direction. | 09-04-2014 |
20140262673 | HYDRAULIC CLUTCH AND TRANSMISSION DEVICE PROVIDED WITH THE SAME - A hydraulic clutch including a clutch drum with an outer cylinder fitted with a plurality of clutch plates and a side wall; a clutch piston that defines together with the clutch drum an engagement oil chamber, and moves in an axial direction to press the clutch plates by hydraulic pressure supplied to the engagement oil chamber; and a cancel plate that defines together with the clutch piston a cancel oil chamber that cancels centrifugal hydraulic pressure. The side wall of the clutch drum is formed with a first oil passage that radially extends and is in communication with the engagement oil chamber, and a second oil passage that radially extends and is in communication with the cancel oil chamber. One of the first and second oil passages is at least partially included in a range of an axial width of the other of the first and second oil passages. | 09-18-2014 |
20140288754 | CONTROL DEVICE FOR VEHICLE DRIVE DEVICE - 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. | 09-25-2014 |
20140326105 | HYBRID DRIVE DEVICE - 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. | 11-06-2014 |
20140331945 | HYBRID DRIVE DEVICE - 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. | 11-13-2014 |
20150018158 | AUTOMATIC TRANSMISSION DEVICE - An automatic transmission device that changes a relative speed between an input and output member. The transmission configured with a first planetary gear mechanism including first to third rotary elements, a second planetary gear mechanism including fourth to sixth rotary elements, a third planetary gear mechanism including seventh to ninth rotary elements, and a fourth planetary gear mechanism including tenth to twelfth rotary elements. A first coupling between the third and eighth rotary element, a second coupling between the fifth and eleventh rotary element, a third coupling between the sixth and twelfth rotary element, a fourth coupling between the seventh and tenth rotary element. A first clutch between the first and third coupling, a second clutch between the first rotary element and the third coupling element, a third clutch between the first and fourth rotary element. | 01-15-2015 |
20150018159 | AUTOMATIC TRANSMISSION DEVICE - An automatic transmission for adjusting the relative speed between an input and output member. The transmission being configured with four planetary gears, the first having first to third rotary elements, the second having fourth to sixth rotary elements, the third having seventh to ninth rotary elements, the fourth having tenth to twelfth rotary elements. Three couplings between (i) first and sixth rotary elements, (ii) second and fifth rotary elements, and (iii) eighth and twelfth rotary elements. Three clutches are provided between (i) the second coupling and input member, (ii) third coupling and input member, and (iii) seventh rotary element and input member. Three brakes are provided at (i) the fourth rotary element, (ii) third coupling element, and (iii) tenth rotary element. The output member is connected to the third rotary element. | 01-15-2015 |
20150031494 | AUTOMATIC TRANSMISSION DEVICE - An automatic transmission is provided to adjust the speed between input and output members. The transmission is configured with four planetary gears having, (i) first to third rotary elements, (ii) fourth to sixth, (iii) seventh to ninth, and (iv) tenth to twelfth rotary elements. Three couplings are provided between (i) first and sixth rotary elements, (ii) second and ninth rotary elements, and (iii) third and eighth rotary elements. Three clutches are provided between (i) second coupling element and tenth rotary element, (ii) fifth and twelfth rotary elements, and (iii) fourth and tenth rotary elements. Three brakes are provided at (i) the fifth rotary element, (ii) the fourth rotary element, and (iii) seventh rotary element. The input member is connected to the tenth rotary element and the output member is connected to the third coupling element. | 01-29-2015 |
20150038281 | AUTOMATIC TRANSMISSION DEVICE - An automatic transmission configured with four planetary gear mechanisms, three clutches, and three brakes, which are configured to provide nine forward speeds and a reverse speed. The combination of elements results in, amongst other benefits, improved torque transfer efficiency. A first planetary gear mechanism including first to third rotary elements that form a sequence of the first rotary element, the second rotary element, and the third rotary element when arranged in an order at intervals corresponding to gear ratios in a velocity diagram. A second planetary gear mechanism including fourth to sixth rotary elements, a third planetary gear mechanism including seventh to ninth rotary elements, and a fourth planetary gear mechanism including tenth to twelfth rotary elements. | 02-05-2015 |
20150038282 | AUTOMATIC TRANSMISSION DEVICE - An automatic transmission device that changes a relative speed between an input and output member. The transmission is configured with four planetary gear mechanisms, the first including first to third rotary elements, the second including fourth to sixth rotary elements, the third including seventh to ninth rotary elements, the fourth including tenth to twelfth rotary elements. Four coupling elements are provided, the first that couples the first, fifth and eighth rotary element to each other. The second couples the second and twelfth rotary elements. The third couples third and eleventh rotary elements. Fourth couples fourth and ninth rotary elements. Three clutches, are provided between (i) second coupling element and the input member, (ii) sixth rotary element and the input member, and (iii) seventh rotary element and the input member. Three brakes are provided on the (i) sixth rotary element, (ii) fourth coupling element, and (iii) tenth rotary element. | 02-05-2015 |
20150038283 | AUTOMATIC TRANSMISSION DEVICE - An automatic transmission that changes a relative speed between an input and output member. Four planetary gears are provided, having (i) first to third rotary elements, (ii) fourth to sixth rotary elements, (iii) seventh to ninth rotary elements, and (iv) tenth to twelfth rotary elements. Four couplings are provided between (i) first and sixth rotary elements, (ii) second rotary and ninth rotary elements, (iii) third and eighth rotary elements, and (iv) fifth and twelfth rotary elements. Three clutches are provided between (i) second coupling element and input member, (ii) fourth rotary element input member, and (iii) tenth rotary element and input member. Three brakes are provided at (i) the fourth coupling element, (ii) fourth rotary element, (iii) and seventh rotary element. The output member is connected to the third coupling element. | 02-05-2015 |
20150046005 | CONTROL DEVICE - A control device that controls a vehicle drive device in which a first rotating electrical machine and a speed change mechanism are provided on a power transmission path connecting an internal combustion engine and wheels. The control device includes a first pump that is driven by the first rotating electrical machine and a second pump that is driven by a second rotating electrical machine provided independently of the power transmission path. The control device is configured with an auxiliary drive control section that, when a main power supply of a vehicle is turned on, executes auxiliary drive control of driving the first pump for a set drive time by the first rotating electrical machine before driving the second pump by the second rotating electrical machine, and starting the second pump after elapse of the set drive time. | 02-12-2015 |