摘要:
[Subject]To rapidly rise a temperature of lubricant in a transmission housing of a hybrid drive power apparatus when the lubricant temperature is lower than a preset lower limit value.[Solution]A control system of a hybrid drive power apparatus of the type which comprises a transmission housing provided therein with a first input shaft to be applied with drive power from an engine through a first friction clutch and a second input shaft to be applied with the drive power of the engine through a second friction clutch, first and second gear-shift mechanisms respectively assembled with the first and second input shafts, a final output shaft in drive connection with each output shaft of the gear-shift mechanisms, a motor-generator in drive connection with the first input shaft or the second input shaft, and a driven mechanism in drive connection with the final output shaft, wherein the control system includes a temperature sensor for detecting a temperature of lubricant stored in the transmission housing, and control means for selecting a shift-step in the first or second gear-shift mechanism assembled with the input shaft in drive connection with the motor-generator when the lubricant temperature detected by the sensor is lower than a preset lower limit value so that drive torque larger than that required for driving the driven mechanism is transferred to the final output shaft, for activating the motor-generator as an electric motor after selection of the shift-step , and for engaging the first or second friction clutch so that the drive torque of the engine is transferred to the final output shaft through a gear set at the selected shift-step in the first or second gear-shift mechanism.
摘要:
A transmission for a vehicle is provided with a plurality of gears supported on shaft members rotatably supported in a case to extend in an axial direction, first and second large-diameter gears soaked at lower parts thereof in lubrication oil stored in a lubrication oil storage region formed at a lower portion of the case for scooping upward lubrication oil during rotations, and first and second receivers arranged to extend in the axial direction of the shaft members for collecting the upwardly scooped lubrication oils to supply the same to parts to be lubricated. The first and large-diameter gears are arranged respectively on one and the other end sides of the plurality of gears in the axial direction. Other gears of the plurality of gears except for the first and second large-diameter gears are formed to diameters that hardly agitate the lubrication oil in the lubrication oil storage region.
摘要:
A dual clutch transmission apparatus includes a first input shaft, a second input shaft arranged coaxially with the first input shaft and freely rotatable, a first counter shaft and a second counter shaft arranged in parallel with the first and the second input shafts, a dual clutch including a first clutch and a second clutch, the first and the second clutches transmitting rotational torque from a power source to the first and the second input shafts respectively, a first gear change mechanism provided between the first and the second input shafts and the first counter shaft, a second gear change mechanism provided between the first and the second input shafts and the second counter shaft and an output shaft connected to the first and the second counter shafts via a first reduction gear train and a second reduction gear.
摘要:
A hybrid-type power transmission in which an internal combustion engine and an electric rotating machine are used as a source of power for driving an output shaft through a change-speed mechanism. In the hybrid power transmission, the operation of the electric rotating machine is controlled in such a manner that the rotation speed of a rotor-side rotary member is synchronized with the rotation speed of an input-side or output-side rotary member when the rotation speed of the rotor-side rotary member becomes higher in a predetermined difference than the rotation speed of the input-side or output-side rotary member in shifting operation of a sleeve coupled with the rotor-side rotary member.
摘要:
A shifting apparatus for a transmission includes a shift-and-select shaft, a retaining member, at least one shifting member rotatably and slidably supported by the shaft to be in contact with an axial end of the retaining member, plural driving pins, plural neutral interlock grooves formed at outer plan surfaces of the retaining member to be slidably engaged with the driving pins, plural shifting interlock grooves, a stepped recessed-portion formed at one of outer plan surfaces of the shifting member, and plural non-shifting grooves formed at the other outer plan surfaces of the shifting member. The shifting member is rotated and detected in a selected position relative to the retaining member. Then, the retaining member and the shifting member are reciprocated so that one of the driving pins makes a contact with the shifting inclined surface of the shifting member and the fork shaft is reciprocated.
摘要:
In a hybrid power system, when a change-speed stage selected in one of gear-shift mechanisms for first and second drive trains is switched over to another change-speed stage in the other gear-shift mechanism, deceleration in rotation speed of an engine detected by a rotation speed sensor is compared with a preset upper limit. When the deceleration in rotation speed of the engine exceeds the upper limit, the motor-generator in drive connection with an input shaft of the second drive train is activated as an electric motor to cause load torque canceling or offsetting input torque applied to the input shaft of the other gear-shift mechanism from the engine, and engagement of the change-speed stage in the other gear-shift mechanism is released after the occurrence of the load torque.
摘要:
[Subject]In a hybrid drive power apparatus, loss of drive power caused by drag torque of a friction clutch is decreased to reduce fuel consumption rate.[Solution]A hybrid drive power apparatus of the type which comprises a first gear-shift mechanism assembled with a first input shaft to be applied with drive power from an engine through a first friction clutch, a second gear-shift mechanism assembled with a second input shaft to be applied with the drive power of the engine through a second friction clutch, a motor-generator in drive connection with the second input shaft, a final output shaft in drive connection with each output shaft of both the gear-shift mechanisms, and a driven mechanism to be driven by drive power transferred from the final output shaft, wherein drive torque of the motor-generator activated as an electric motor is transferred to the final output shaft through a gear set as a shift step selected in the second gear-shift mechanism, wherein the hybrid drive power apparatus includes control means for activating the motor-generator as the electric motor in a condition where the first friction clutch is brought into engagement to transfer drive torque of the engine to the final output shaft through the first input shaft and the first gear-shift mechanism and for engaging the second friction clutch after activation of the motor-generator so that the final output shaft is applied with drive torque of the motor-generator activated as the electric motor and the drive torque of the engine through the first input shaft and the first gear-shift mechanism.
摘要:
In an automatic dual-clutch transmission, a lowest speed driven gear, other driven gears and a reverse gear are provided on a first output shaft to be freely rotatable. A 2nd speed driven gear and a highest speed driven gear are provided on a second output shaft to be freely rotatable. Further, the 2nd speed driven gear is provided with a large-diameter gear meshing with a 2nd speed drive gear and a small-diameter gear provided bodily with the large-diameter gear, being fewer in tooth number and smaller in diameter than the large-diameter gear, and meshing with the reverse gear. Thus, the automatic dual-clutch transmission is reduced in diameter by not having an output shaft dedicated to the reverse gear and is able to set the gear ratio for reverse to be large.
摘要:
[Subject] In a hybrid drive power apparatus, loss of drive power caused by drag torque of a friction clutch is decreased to reduce fuel consumption rate.[Solution] A hybrid drive power apparatus of the type which comprises a first gear-shift mechanism assembled with a first input shaft to be applied with drive power from an engine through a first friction clutch, a second gear-shift mechanism assembled with a second input shaft to be applied with the drive power of the engine through a second friction clutch, a motor-generator in drive connection with the second input shaft, a final output shaft in drive connection with each output shaft of both the gear-shift mechanisms, and a driven mechanism to be driven by drive power transferred from the final output shaft, wherein drive torque of the motor-generator activated as an electric motor is transferred to the final output shaft through a gear set as a shift step selected in the second gear-shift mechanism, wherein the hybrid drive power apparatus includes control means for activating the motor-generator as the electric motor in a condition where the first friction clutch is brought into engagement to transfer drive torque of the engine to the final output shaft through the first input shaft and the first gear-shift mechanism and for engaging the second friction clutch after activation of the motor-generator so that the final output shaft is applied with drive torque of the motor-generator activated as the electric motor and the drive torque of the engine through the first input shaft and the first gear-shift mechanism.
摘要:
A vehicle transmission apparatus includes an engine generating a driving force; a transmission having, therein, at least one input shaft being connectable to the engine and an output shaft connected to a drive wheel, the transmission being capable of establishing, therein, one of plural shift stages in response to a vehicle driving condition; at least one clutch mechanism for establishing and interrupting transmission of a driving force of the engine to the transmission, the at least one clutch mechanism being capable of being connected to the at least one input shaft; and a braking means for applying a braking force to the engine.