Abstract: A shift-by-wire system configured to switch shift positions includes a detent plate, a detent spring, a rotating electrical machine, a gear device, and an electronic control unit. The electronic control unit provided in the shift-by-wire system is configured to control a rotating electrical machine torque. The electronic control unit is configured to reverse the rotating electrical machine torque after the electronic control unit makes the rotating electrical machine output the rotating electrical machine torque for turning the detent plate in a turning direction to switch the shift position, then the detent torque generated in the detent plate by a push of the engagement portion is reversed in the turning direction from a counter-turning direction opposite to the turning direction, and before backlash elimination in a backlash portion of the gear device by the reversed detent torque is finished.

Abstract: A vehicle drive-force transmitting apparatus including: a casing; a drive-force transmitting mechanism disposed in the casing; and first and second oil pumps configured to suck, through respective inlet ports thereof, oil stored in a bottom portion of a casing, such that the drive-force transmitting mechanism is lubricated by the oil pumped up by the first and second oil pumps. The casing is provided with a drain hole through which the oil stored in the bottom portion of the casing is to be discharged to an exterior of the casing. A position of opening of the inlet port of the first oil pump is lower than a position of a lower end of the drain hole, and a position of opening of the inlet port of the second oil pump is higher than the position of the lower end of the drain hole.

Abstract: A vehicle drive-force transmitting apparatus including: a casing; a drive-force transmitting mechanism disposed in the casing; and first and second oil pumps configured to suck, through respective inlet ports thereof, oil stored in a bottom portion of a casing, such that the drive-force transmitting mechanism is lubricated by the oil pumped up by the first and second oil pumps. The casing is provided with a drain hole through which the oil stored in the bottom portion of the casing is to be discharged to an exterior of the casing. A position of opening of the inlet port of the first oil pump is lower than a position of a lower end of the drain hole, and a position of opening of the inlet port of the second oil pump is higher than the position of the lower end of the drain hole.

Abstract: A rotation speed of an electric oil pump in the case where an accelerator operation amount falls within a predetermined range is controlled to a rotation speed lower than the rotation speed of the electric oil pump in the case where the accelerator operation amount falls outside the predetermined range. When the range outside the predetermined range of the accelerator operation amount is set to a range in which noise that occurs from a source other than the electric oil pump is large, noise that occurs from the electric oil pump is masked by the noise that occurs from a source other than the electric oil pump and becomes inconspicuous in this range even when the rotation speed of the electric oil pump increases.

Abstract: A rotation speed of an electric oil pump in the case where an accelerator operation amount falls within a predetermined range is controlled to a rotation speed lower than the rotation speed of the electric oil pump in the case where the accelerator operation amount falls outside the predetermined range. When the range outside the predetermined range of the accelerator operation amount is set to a range in which noise that occurs from a source other than the electric oil pump is large, noise that occurs from the electric oil pump is masked by the noise that occurs from a source other than the electric oil pump and becomes inconspicuous in this range even when the rotation speed of the electric oil pump increases.

Abstract: A control apparatus for a hybrid vehicle to permit charging of an electric-energy storage device with an electric energy supplied from an external electric power source provided outside said hybrid vehicle, while said hybrid vehicle is held stationary; and to operate an engine for operating a lubricant supply device to supply a predetermined amount of the lubricant, during charging of said electric-energy storage device by said external electric power source, irrespective of whether a count of said motor running counter has reached a predetermined upper limit, and to reset said motor running counter.

Abstract: A hybrid vehicle includes an engine that is an internal combustion engine, a motor generator that is a rotating electric machine used together with the engine for driving the vehicle, an output shaft transmitting power to a wheel, a transmission member coupled to the output shaft, a power split device splitting the output from the engine to the motor generator and transmission member, a detection device detecting irregularities on a road, and a control unit reducing, when the detected result by the detection device indicates generation of periodic torque variation at the output shaft, the output from the engine based on the detected result. Accordingly, a hybrid vehicle that does not require a torque limiter is provided.

Abstract: It is provided a control apparatus for a hybrid vehicle provided with an engine and an electric motor serving as a vehicle drive power source, a power transmitting system for transmitting a drive force of said vehicle drive power source to a drive wheel, an electric-energy storage device for storing an electric energy to be supplied to said electric motor, and a lubricant supply device which is operatively connected to said engine and operated by a rotary motion of the engine to supply a lubricant to at least a portion of said power transmitting system, the control apparatus being configured: to permit running of the hybrid vehicle in a motor drive mode in which only said electric motor is operated as the vehicle drive power source, with the electric energy supplied from said electric-energy storage device while the rotary motion of said engine is stopped; to operate a motor running counter in said motor drive mode, to count continuation of said motor drive mode without the rotary motion of said engine, and t

Abstract: The composite planetary gear apparatus according to the present invention can bring about an advantageous effect to prevent fuel efficiency from being lowered stemming from the increased stirring loss of oil. The apparatus comprises a first planetary gear assembly 11 having a sun gear S1, pinion gears P1, and a ring gear R1, and a second planetary gear assembly 12 having a sun gear S2, pinion gears P2, and a ring gear R2. The ring gears R1 and R2 surround the pinion gears P1 and P2 and are combined together to integrally form a counter drive gear 13. The counter drive gear 13 is formed with a plurality of through bores 13c each having an inner end opened at a closed space defined by the first and second planetary gear assemblies 11 and 12, and an outer end opened at an outer space surrounding the counter drive gear 13.

Abstract: When at least one of a condition under which a parking brake is activated, a condition under which a shift lever is shifted to a parking range, a condition under which a shift to the neutral range is executed, and a condition under which a drive termination operation is executed is satisfied during an EV travel mode, a carrier shaft provided coaxially with a crankshaft is rotated by a motor generator, and a cumulative value of a travel distance counter obtained when an engine is stopped is reset.

Abstract: A shield member (90) is arranged on the rotor end face (18a) of an electric rotating machine (10). As the rotational velocity of a rotor (18) increases, the shield member (90) moves outward in the radial direction of a rotating shaft (12) to cover a part of the opening (86) of a slot (82). The shield member (90) controls inflow of lubricant from a portion in the axial-direction of the rotating shaft (12) on the outside of the rotor end face (18a) to the slot (82). Rotational resistance of the rotor (18) caused by stirring of lubricant can be reduced during high velocity rotation of the rotor (18).

Abstract: A hybrid vehicle includes an engine that is an internal combustion engine, a motor generator that is a rotating electric machine used together with the engine for driving the vehicle, an output shaft transmitting power to a wheel, a transmission member coupled to the output shaft, a power split device splitting the output from the engine to the motor generator and transmission member, a detection device detecting irregularities on a road, and a control unit reducing, when the detected result by the detection device indicates generation of periodic torque variation at the output shaft, the output from the engine based on the detected result. Accordingly, a hybrid vehicle that does not require a torque limiter is provided.

Abstract: When at least one of a condition under which a parking brake is activated, a condition under which a shift lever is shifted to a parking range, a condition under which a shift to the neutral range is executed, and a condition under which a drive termination operation is executed is satisfied during an EV travel mode, a carrier shaft provided coaxially with a crankshaft is rotated by a motor generator, and a cumulative value of a travel distance counter obtained when an engine is stopped is reset.

Abstract: The composite planetary gear apparatus according to the present invention can bring about an advantageous effect to prevent fuel efficiency from being lowered stemming from the increased stirring loss of oil. The apparatus comprises a first planetary gear assembly 11 having a sun gear S1, pinion gears P1, and a ring gear R1, and a second planetary gear assembly 12 having a sun gear S2, pinion gears P2, and a ring gear R2. The ring gears R1 and R2 surround the pinion gears P1 and P2 and are combined together to integrally form a counter drive gear 13. The counter drive gear 13 is formed with a plurality of through bores 13c each having an inner end opened at a closed space defined by the first and second planetary gear assemblies 11 and 12, and an outer end opened at an outer space surrounding the counter drive gear 13.

Abstract: A shield member (90) is arranged on the rotor end face (18a) of an electric rotating machine (10). As the rotational velocity of a rotor (18) increases, the shield member (90) moves outward in the radial direction of a rotating shaft (12) to cover a part of the opening (86) of a slot (82). The shield member (90) controls inflow of lubricant from a portion in the axial-direction of the rotating shaft (12) on the outside of the rotor end face (18a) to the slot (82). Rotational resistance of the rotor (18) caused by stirring of lubricant can be reduced during high velocity rotation of the rotor (18).

Abstract: In the case where a start command of an engine is given with a gearshift lever being operated to a parking position, when a cooling water temperature Tw is lower than a threshold value Twref, and a stop time tst of the engine is a threshold value tstref or longer (S110 and S120), a relatively large predetermined torque T2 is set to a power-holding torque Tg (S140), and the power-holding torque Tg added to a torque for canceling a reaction torque is output from a second motor to motor and start the engine. This allows the engine to be started with a backlash between gears being eliminated even when resistance in motoring the engine is relatively large.

Abstract: An oil feeding device which has an oil reserving portion 50 and first oil requiring portions 8, 62, 63, 67, 68, 72 and 76 provided in a moving object, and a first oil discharging portion 58 for feeding an oil reserved in the oil reserving portion 50 to the first oil requiring portions comprises: a regulating member 64 for regulating a relative movement of the oil discharged from the first oil discharging portion 58 and the first oil requiring portions in a moving direction of the moving object; a second oil discharging portion 57 for feeding the oil reserved in the oil reserving portion 50 to the first oil requiring portions. A discharging pressures of the oil at the first oil discharging portion 57 and the second oil discharging portion 58 are changed in accordance with the amount of the oil in the oil reserving portion 50. Therefore, the reduction of the amount of oil to be fed to the first oil requiring portions can be suppressed even when the speed of the moving object changes.

Abstract: In the case where a start command of an engine is given with a gearshift lever being operated to a parking position, when a cooling water temperature Tw is lower than a threshold value Twref, and a stop time tst of the engine is a threshold value tstref or longer (S110 and S120), a relatively large predetermined torque T2 is set to a power-holding torque Tg (S140), and the power-holding torque Tg added to a torque for canceling a reaction torque is output from a second motor to motor and start the engine. This allows the engine to be started with a backlash between gears being eliminated even when resistance in motoring the engine is relatively large.

Abstract: An oil feeding device which has an oil reserving portion 50 and first oil requiring portions 8, 62, 63, 67, 68, 72 and 76 provided in a moving object, and a first oil discharging portion 58 for feeding an oil reserved in the oil reserving portion 50 to the first oil requiring portions comprises: a regulating member 64 for regulating a relative movement of the oil discharged from the first oil discharging portion 58 and the first oil requiring portions in a moving direction of the moving object; a second oil discharging portion 57 for feeding the oil reserved in the oil reserving portion 50 to the first oil requiring portions. A discharging pressures of the oil at the first oil discharging portion 57 and the second oil discharging portion 58 are changed in accordance with the amount of the oil in the oil reserving portion 50. Therefore, the reduction of the amount of oil to be fed to the first oil requiring portions can be suppressed even when the speed of the moving object changes.

Abstract: An apparatus for controlling an automotive vehicle having a primary drive power source and an auxiliary drive power source. The apparatus includes a controller adapted to control the auxiliary drive power source such that an assisting drive torque which is generated by the auxiliary drive power source and applied to the vehicle in addition to a primary drive torque generated by the primary drive power source increases with an increase of a required output of the vehicle desired by the vehicle operator, and such that the auxiliary drive power source is operated for a length of time which decreases with the increase of the required output of the vehicle.