摘要:
A vehicular drive system including a first electric motor, a differential mechanism operable to distribute an output of a drive power source to the first electric motor and a power transmitting member, a second electric motor disposed in a power transmitting path between the power transmitting member and a drive wheel, and a power transmitting device disposed between the second electric motor and the drive wheel, wherein the first electric motor, the differential mechanism, the second electric motor and the power transmitting device are arranged in an axial direction of the vehicular drive system, the vehicular drive system being characterized by a support wall disposed between the second electric motor and the power transmitting device and arranged to support the second electric motor, and a first group of oil passages which are formed through the support wall and through which a lubricating oil is supplied to at least one of the first electric motor, the differential mechanism and the second electric motor, and to the power transmitting device.
摘要:
The transmission is constructed with a first ring gear and a third ring gear that are firmly connected. A second ring gear and a third carrier are also firmly connected. A second sun gear and a third sun gear are also firmly connected. An input shaft is connectable to a first carrier via a first clutch. The input shaft is connectable to a first sun gear via a second clutch. A third clutch is disposed between the first carrier and a second ring gear. The first carrier is connectable to the second ring gear and the third carrier via the third clutch. A first brake is provided between the first sun gear and a transmission case. A second brake is provided between the transmission case and the first ring gear as well as the third ring gear. A third brake and a one-way clutch are provided in parallel between the first carrier and the transmission case. A fourth brake is provided between the transmission case and the second sun gear as well as the third sun gear.
摘要:
A second electric motor is arranged on a first axis on which an output shaft of the engine is arranged, a transmission is arranged on a second axis which is parallel with the first axis, and a clutch is arranged on the first axis to selectively connect and disconnect the second electric motor and the transmission to and from the engine. Power on the first axis is transmitted to an input shaft of the transmission via a power transmitting mechanism.
摘要:
An automatic transmission includes a first rotating element provided by coupling a sun gear of a second planetary gear set and a carrier of a third planetary gear set to each other, a second rotating element provided by coupling a carrier of the second planetary gear set and a ring gear of the third planetary gear set to each other, a third rotating element provided by a ring gear of the second planetary gear set, and a fourth rotating element provided by a sun gear of the third planetary gear set. The first rotating element and the second rotating element are coupled to a case by first and second brakes, the fourth and first rotating elements are coupled to a ring gear of a first planetary gear set via first and second clutches, the second and first rotating elements are coupled to an input shaft via third and fourth clutches, and the third rotating element is integrally coupled to an output gear, so that the automatic transmission can provide eight forward gear stages by changing a combination of two of the clutches and brakes which are engaged to each other.
摘要:
Providing a control apparatus for a variable-cylinder engine or a vehicle control apparatus, which permits a further improvement in the fuel economy of the vehicle. Decompression-state setting means 102 is arranged to place appropriate ones of non-operating cylinders of the variable-cylinder engine 10 in the decompression state, on the basis of regenerative braking state of vehicle detected by regenerative-braking-state detecting means 100, so that only a required minimum number of the non-operating cylinders of the variable-cylinder engine 10 is/are placed in the decompression state, depending upon the detected regenerative braking state of the vehicle, making it possible to not only improve fuel economy of the vehicle but also assure sufficient engine braking of the vehicle.
摘要:
An apparatus for controlling an automotive vehicle including an engine with an intake valve and/or an exhaust valve having a variable operating characteristic, a transmission having a plurality of operating positions that are selectively established, and a manually operable vehicle accelerating member, the apparatus including a target-drive-force setting portion operable to determine a target vehicle drive force on the basis of an operating amount of the accelerating member and a presently selected one of the operating positions of the transmission, such that the determined target vehicle drive force permits a smooth change of an actual vehicle drive force with a change of the operating amount of the vehicle accelerating member, irrespective of a shifting action of the transmission, and a drive-power-source-torque control portion (104) operable to control a torque of the engine, by controlling at least one of a lift amount, an operating period of an opening and closing action and an operating timing of the intake valve (74) and/or the exhaust valve (75), so that the actual vehicle drive force coincides with the target vehicle drive force after the shifting action of the transmission.
摘要:
The transmission is constructed with a first ring gear and a third ring gear that are firmly connected. A second ring gear and a third carrier are also firmly connected. A second sun gear and a third sun gear are also firmly connected. An input shaft is connectable to a first carrier via a first clutch. The input shaft is connectable to a first sun gear via a second clutch. A third clutch is disposed between the first carrier and a second ring gear. The first carrier is connectable to the second ring gear and the third carrier via the third clutch. A first brake is provided between the first sun gear and a transmission case. A second brake is provided between the transmission case and the first ring gear as well as the third ring gear. A third brake and a one-way clutch are provided in parallel between the first carrier and the transmission case. A fourth brake is provided between the transmission case and the second sun gear as well as the third sun gear.
摘要:
An apparatus for controlling a lock-up clutch disposed in a drive system of an automotive vehicle which includes a lean-burn engine provided with a turbocharger. The apparatus is arranged to place the lock-up clutch in a fully engaged state and/or a slip control state while a running condition of the automotive vehicle is in a predetermined engaging area or slip control area of the lock-up clutch. The apparatus includes an engaging area changing device operable to change the engaging area of the lock-up clutch, on the basis of a turbocharging pressure established by the turbocharger, and/or slip-control-area changing means for changing the slip control area, on the basis of the turbocharging pressure. Also disclosed is an apparatus for controlling a lean-burn engine provided with a turbocharger, which apparatus includes a device for changing a range of an air/fuel ratio of an air-fuel mixture of the engine for a given turbocharging pressure, on the basis of at least one of operating state and slipping state of the lock-up clutch.
摘要:
A control device for an automatic transmission which prevents an automatic transmission from executing a “busy-shift” caused by a lower gear ratio of the highest gear, and which reduces revolutions of a driving power source at high speed. The control device includes an automatic shift mode, an independent manual shift mode, and a highest gear control means. The automatic shift mode automatically determines a gear ratio of the automatic transmission on the basis of a driving condition of a vehicle having the automatic transmission. The manual shift mode determines a gear ratio of the automatic transmission by a driver's intention. The highest gear control means controls the automatic transmission, so that the smallest gear ratio set by the manual shift mode is smaller than the smallest gear ratio set by the automatic shift mode. If the gear ratio of the highest gear of the automatic shift mode is not so small, a shift caused by a change of a driving condition does not easily occur. The busy-shift can be avoided in the automatic transmission. Although a smaller gear ratio can not be adopted in the automatic shift mode, it can be set if the manual shift mode is selected. Therefore, revolutions of a driving power source are reduced and a fuel consumption can be improved.
摘要:
An apparatus for controlling a vehicle which prevents a frequent gear shift called “busy-shift” caused by a varying driving condition. A plurality of wheels, a first power source, a second power source, an electric power supply, and a transmission between the wheel and at least one of the power sources are mounted in the vehicle. The apparatus for controlling the vehicle includes a detecting and a torque change. The detecting means detects a selected gear ratio of the transmission. Since torque of the second power source is increased or decreased in response to the selected gear ratio which is detected by the detecting, a fluctuation of the driving torque of the vehicle is restrained. Consequently, a frequent gear shift “busy-shift” can be avoided.