Abstract: In a driving device that includes a mechanical oil pump operated by power of an engine and a motor oil pump EOP operated by power of a motor, provided in parallel with each other, and check valves on discharge sides of the pumps, and pumps oil from any of the pumps and supplies the oil to a clutch included in a transmission, a through hole 68a for releasing air that communicates with a discharge port 68 is formed in a case 61 of the mechanical oil pump MOP. This allows air trapped in when driving of the mechanical oil pump MOP is started along with a start of the engine to be quickly discharged to quickly increase internal pressure to pressure required for opening the check valve, and thus oil can be supplied to the clutch of the transmission via the check valve to quickly operate the clutch.

Abstract: A hybrid driving unit (7) is mounted to a vehicle by coupling a coupling section (14d) at the front end of a casing member (14) with an internal combustion engine (5) and by mounting a mounting section (14c) at the rear end of the casing member (14) to a part (4a) of a body (4). Still more, a first electric motor, i.e., a heavy device, is disposed in the rearmost part among a power splitting planetary gear, a second electric motor and a transmission disposed on an axis (13) in the casing member (14). Thereby, the vibration occurring in the casing member (14) is suppressed.

Abstract: A vehicular drive apparatus includes a case, a first brake having a first friction plate set and a second brake having a second friction plate set wherein the first friction plate set and the second friction plate set are sequentially arranged on a single axis, and a first hydraulic servo arranged to correspond to the first brake and a second hydraulic servo arranged to correspond to the second brake.

Abstract: A vehicle driving apparatus includes a rotating electrical machine; a power transmitting gear mechanism; and a case in which the rotating electrical machine and the gear mechanism are housed in series in an axial direction of the rotating electrical machine, wherein a low rigidity region, which is a region of the case having low rigidity located at an outer periphery of the rotating electrical machine, is covered by a silencer supported on a high rigidity region of the case having a higher rigidity than the low rigidity region.

Abstract: A hybrid driving unit in which a first electric motor (20), a second electric motor (23), a transmission (22) and a power splitting planetary gear (21) are disposed in order from the front side (the side of an internal combustion engine) on an axis within a casing member (14). Since the first electric motor (20) and the second electric motor (23) are disposed adjacently to each other, partial cases for storing these first and second electric motors (20) and (23) may be combined, thus facilitating the accommodation for producing the unit in series.

Abstract: An output shaft of an internal combustion engine and an input shaft of a transmission are coupled to each other via a damper device. The damper device includes a housing and a rotary member that rotate relative to each other to damp the torsional vibration of the output shaft, and transmits the rotational force of the output shaft to the input shaft and damps the torsional vibration of the output shaft. The rotary member is fitted to a hub from outside. The output shaft is fixed via a flywheel to the housing for rotation together therewith, while the input shaft is fitted in a fitting hole formed in the hub.

Abstract: An oil path structure includes: a motor case having a joint surface and having a cooling oil path opened to the joint surface formed therein; a generator case having a cooling oil path formed therein and joined to the joint surface such that the cooling oil paths communicate with each other; an O-ring sealing between the cooling oil paths; and a plain washer limiting the flow rate of oil passing through the oil path. In the generator case, a recessed portion is formed at a position adjacent to the joint surface and on route of the cooling oil path. In the recessed portion, the O-ring in contact with the joint surface and the plain washer positioned on the side of O-ring opposite to the joint surface are arranged. The plain washer is sandwiched between the O-ring and a bottom surface. Thus, an oil path structure can be provided that ensures reliable sealing and allows flow rate adjustment with a simple structure.

Abstract: A hybrid drive unit for vehicles, in which a power distribution device is arranged in a power transmission route between an engine and a wheel, in which the power distribution device has a first to fourth rotary elements capable of rotating differentially with one another, in which a first motor generator is connected to the second rotary element and a wheel is connected to the fourth rotary element, and which is capable of steplessly controlling a speed change ratio of the first rotary element and the fourth rotary element of the power distribution device comprising: a second motor generator connected to the third rotary element of the power distribution device; a third motor generator connected to the wheel in a power transmittable manner; and an electric circuit for allowing exchange of electric power among individual motor generators.

Abstract: A hybrid driving unit (7) in which a second electric motor (23) is disposed on the side closer to the front of a vehicle (the side closer to an internal combustion engine (5)) than a first electric motor (20). A casing member (14) is formed such that an inner diameter of a part thereof, in which a stator (28) of the second electric motor (23) is fixed, is larger than that of a part in which a stator of the first electric motor (20) is fixed. This allows the second electric motor (23) to be constructed so as to have a large radial dimension and, to that extent, allows the length thereof in the longitudinal direction to be suppressed. Accordingly, this allows the length of the whole hybrid driving unit (7) to be shortened.

Abstract: In setting of an oil temperature increasing process mode, the drive control technique of the invention starts an engine to actuate a mechanical oil pump that pressure feeds a flow of lubricating oil for lubricating the mechanical parts of a transmission and other relevant parts, actuates an electric oil pump that pressure feeds the flow of lubricating oil, and makes a brake B1 included in the transmission in a semi-engagement state. A motor arranged adjacent to the transmission is then driven with lowered output efficiency. This arrangement effectively accelerates heat generation by the motor and ensures a quick temperature rise of the lubricating oil.

Abstract: A planetary gear lubrication unit includes a planetary gear unit having a sun gear and a carrier that has a plurality of pinion shafts, wherein each of the plurality of pinion shafts rotatably supports a pinion, a plurality of side plates that support the plurality of pinion shafts, and a rotating shaft arranged in a center portion of the planetary gear unit, in which lubrication oil supplied from the rotating shaft is led to a portion of the pinion shafts that support the pinions.

Abstract: A transaxle includes a case having an opening, a second rotating electric machine stored in the opening of the case and having a stators, a rear planetary gear stored in the transaxle case and connected to the second rotating electric machine, a transaxle rear cover sealing the opening and a bolt fixing the second rotating electric machine to the transaxle case. The stator has first and second thrust end faces defining an axial length thereof. The first thrust end face is pressed against an inner surface of the case.

Abstract: A hybrid drive system is provided which includes a first damper that is connected to an output shaft of an engine; an electric motor which is provided adjacent to the first damper and connected to the output side of the first damper; a power split device that distributes power from the engine to the electric motor and a wheel side output shaft; and a second damper that is connected to the output side of the first damper between the first damper and the electric motor. Accordingly, a hybrid drive system can be provided which reduces vibration caused by resonance of a torsional damper without increasing the size of the hybrid drive system.

Abstract: In response to the driver's gearshift operation from a parking position to a drive position, the control procedure of the invention controls a motor connected to a transmission to output a center adjustment torque Tset, while the transmission is in a state of disconnecting the motor from an axle of a hybrid vehicle. The control procedure adjusts the rotation centers of respective rotational elements in the transmission by rotating the respective rotational elements, and then initiates gradual engagement of a brake to set the transmission in a low gear position. This arrangement desirably retains deviation of the rotation centers of the respective rotational elements in the transmission and prevents potential troubles due to the eccentric rotation centers of the respective rotational elements in the transmission.

Abstract: A harness routing structure for a sliding door includes harnesses that are routed between a vehicle body and a sliding door, and a guiding device that is provided along the harnesses and that guides the harnesses, wherein the guiding device has at the ends thereof installation portions that are respectively installed on the vehicle body and the sliding door, and a torsion-permitting portion for permitting twisting of the harnesses is provided along the harnesses in the installation portions.

Abstract: Lubricating oil supply holes are drilled into a first member that is fitted to a plurality of first annular plates by a spline. Of splines to which each lubricating oil supply hole corresponds, lubricating oil grooves provided in the plurality of first annular plates do not overlap the splines on at least one of the front and rear surfaces of the first annular plates, and therefore lubricating oil flowing out of the lubricating oil supply holes is dispersed in a circumferential direction and flows from the inner periphery to the outer periphery of the first annular plates, rather than gathering in each lubricating oil groove and flowing in an outer peripheral direction. As a result, a force generated by an axial lubricating oil flow, which acts in a direction for causing the second annular plates to contact friction materials on the first annular plates, is suppressed, leading to a reduction in drag torque.

Abstract: An output of an internal combustion engine is transmitted to an output shaft by controlling a control motor to change a rotation speed output from the engine without speed steps via power distribution planetary gear. An output of a drive motor is input to the output shaft by changing the speed into two-step decelerated rotation by means of an automatic transmission. The transmission produces a desired torque by decelerating the speed by a large degree when a vehicle speed is low, and produces a desired number of revolutions by decelerating the speed by a small degree when the vehicle speed is high.

Abstract: A hydraulic control apparatus for a transmission includes a line pressure regulating device that enables control in which an oil pressure from an oil pump is regulated so as to attain a line pressure, and that enables control in which the line pressure is switched stepwise between a low pressure state in a lower pressure range and a high pressure state in a higher pressure range; a plurality of hydraulic servos that engage and disengage friction engaging elements using engagement pressures that are based on the line pressure; and a high pressure state detecting device that detects that the line pressure regulating device is outputting the line pressure in the high pressure state.

Abstract: A vehicular transmission includes a gear-change mechanism section that shifts power from a driving source and outputs the power to an output shaft; and a hydraulic system that supplies hydraulic pressure from an oil pump to the gear-change mechanism section via a check valve. The check valve includes a cylindrical valve case in which a passage is formed, a valve stored within the valve case so as to be freely movable in an axial direction of the valve case, a valve seat that is formed at one end portion of the passage in the valve case and that closes the passage when the valve sits thereon, a spring for urging the valve so as to sit on the valve seat, and a spring seat fixed on an axially opposite side of the valve seat in the valve case to support the spring.

Abstract: A drive apparatus for a hybrid vehicle is provided with a first motor generator, a power splitting mechanism portion, and a second motor generator. The first motor generator functions mainly as a generator. The power splitting mechanism portion divides the power generated by the engine into power for the first motor generator and power for driven wheels. The second motor generator has an outside diameter that is smaller than the outside diameter of the first motor generator and is arranged on the side of the first motor generator opposite the engine. Further, a speed reducing mechanism portion which has an outside diameter smaller than the outside diameter of the second motor generator and which reduces the rotation speed of the second motor generator is provided on the side of the second motor generator opposite the engine.