Abstract: A rotor manufacturing method includes: a jig attachment step of attaching a holding jig to a rotor core, the holding jig being a member that holds the rotor core by sandwiching the rotor core in a stacking direction of laminated steel sheets and pressing the rotor core; a rotor hub insertion step of inserting a rotor hub into an inner peripheral surface of the rotor core with the rotor core and the holding jig heated to a temperature equal to or higher than an insertable temperature at which the rotor hub can be inserted into the inner peripheral surface of the rotor core; and a cooling step of cooling the rotor core to fix the rotor core and the rotor hub together. The rotor hub insertion step is performed with the holding jig kept attached to the rotor core.

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: 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 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 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 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 second electric motor (23), i.e., a heavy device, is disposed in the rearmost part among a first electric motor (20), a power splitting planetary gear (21), the second electric motor (23) 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: Drain holes are arranged in positions offset from valve holes of a valve body. The drain holes have a long chimney-shaped space such that even if insulation material, that has peeled off of an electric motor, is suspended in oil, it is less likely to enter drain chambers through the drain holes.

Abstract: An output shaft is divided into a first output shaft and a second output shaft. Torque from a motive power distributing planetary gear is transferred to the first output shaft. The first output shaft is supported on partition walls by a both-end support structure via bearings. Assist torque from a transmission is applied to the second output shaft. The second output shaft is also supported on partition walls by a both-end support structure via bearings.

Abstract: A front end portion of an output shaft is supported by a bearing mounted to an inner peripheral surface of a partition that separates a power distributing planetary gear and a speed change unit. A rear end portion of the output shaft is supported via a bearing which is interposed along a portion of the same plane along which also lies a mounting surface of a bearing in a rear wall that supports a rear end portion of a rotor of a second motor. As a result, the output shaft is supported by a twin support structure via the bearings by the partition and the rear wall.

Abstract: A planetary gear train includes a carrier having a first side plate, a second side plate disposed in parallel to the first side plate and pinions rotatably supported by the first and second side plates; and a ring member secured to an outer edge of the second side plate. The first side plate has a plurality of first convex portions whose edge portion form an outer edge and a plurality of first concave portions formed between adjacent first convex portions. The second side plate has a plurality of second convex portions whose edge portion form an outer edge and whose width in a peripheral direction is wider than the first convex portion, and a plurality of carrier bridges axially extended from a part between the plurality of second convex portions to the plurality of first concave portions and secured to the first concave portion.

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 control apparatus of a hybrid vehicle having a first drive unit, a second drive unit, a HV battery, a shift control element, a battery state detection element, and a shifting-time drive control element. Furthermore, in the control apparatus, a battery balance control element is formed by an engine control element, a first motor control element, a second motor control element and the shifting-time drive control element. If the shift control element determines there is a need for shifting carried out by a stepped transmission, the battery balance control element calculates the amount of increase/decrease in the amount of charge of the HV battery in accordance with the state of the HV battery, and changes the engine operation point on the basis of the calculated amount of increase/decrease in the battery charge, prior to the shifting.

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: 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 hybrid drive unit includes a hybrid mechanism having at least one electric motor and a transfer that distributes driving force to front and rear wheels. The electric motor and the transfer are housed in a tubular shaped transmission case that extends in the front and rear directions of a vehicle. The hybrid drive unit is mounted on and supported by a second attachment coupled to an internal combustion engine and provided at a front end of the hybrid drive unit and a first attachment portion fixed to a vehicle body. The electric motor and the transfer that are heavy structural members of the hybrid drive unit are positioned separately to the front and rear of the first attachment portion that forms a boundary. By adopting this configuration, it is possible to reduce the amount of engine vibration that is transmitted to the vehicle body through the first attachment portion.

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.