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1. WO2006098249 - POWER OUTPUT APPARATUS, MOTOR VEHICLE EQUIPPED WITH POWER OUTPUT APPARATUS, AND CONTROL METHOD OF POWER OUTPUT APPARATUS

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[ EN ]

Claims :

1. A power output apparatus that outputs power to a driveshaft, said power output apparatus comprising:
an internal combustion engine ;
an electric power-mechanical power input output mechanism that is connected to an output shaft of the internal combustion engine and to the driveshaft and transmits at least part of output power of the internal combustion engine to the driveshaft through input and output of electric power and mechanical power,- a motor that is capable of inputting and outputting power; a gearshift transmission structure that transmits power between a rotating shaft of the motor and the driveshaft with a variable setting of a gear ratio;
an accumulator unit that inputs and outputs electric power from and to the electric power-mechanical power input output mechanism and the motor; and
a change gear control module that, in response to a decrease in driving force transmitted from the motor to the driveshaft during a change of the gear ratio in the gearshift transmission structure in a state of output of. a positive driving force from the motor, controls the internal combustion engine and the electric power-mechanical power input output mechanism to increase a direct driving force, which is directly transmitted from the internal combustion engine to the driveshaft via the electric power-mechanical power input output mechanism, while controlling the motor and the gearshift transmission structure to cause the motor to consume at least part of electric power generated by the electric power-mechanical power input output mechanism under the condition of increasing direct driving force.

2. A power output apparatus in accordance with claim 1, wherein said change gear control module controls the internal combustion engine and the electric power-mechanical power input output mechanism on the assumption of a decrease in driving force transmitted from the motor to the driveshaft during an upshift change of the gear ratio in the gearshift transmission structure.

3. A power output apparatus in accordance with either one of claims 1 and 2, wherein said change gear control module increases a driving force output from the motor by a preset driving force to cause the motor to consume at least part of the electric power generated by the electric power-mechanical power input output mechanism.

4. A power output apparatus in accordance with any one of claims 1 through 3, wherein the gearshift transmission structure switches over an engagement state of an engagement member via a semi-engagement transition to change the setting of the gear ratio, and
said change gear control module controls the motor and the gearshift transmission structure to adjust the semi-engagement transition of the engagement member based on a driving force output from the motor and to cause the motor to consume at least part of the electric power generated by the electric power-mechanical power input output mechanism under the condition of the increasing direct driving force.

5. A power output apparatus in accordance with any one of claims 1 through 4, wherein said change gear control module controls the internal combustion engine and the electric power-mechanical power input output mechanism on the assumption of a decrease in driving force transmitted from the motor to the driveshaft throughout a torque phase .

6. A power output apparatus in accordance with claim 5 , wherein said change gear control module controls the internal combustion engine and the electric power-mechanical power input output mechanism on the assumption of a decrease in driving force transmitted from the motor to the driveshaft throughout a state between elapse of a preset time after a gear ratio change instruction and a start of an inertia phase.

7. A power output apparatus in accordance with any one of claims 1 through 6, wherein said change gear control module varies a torque input from or output to the electric power-mechanical power input output mechanism to increase the direct driving force.

8. A power output apparatus in accordance with claim 7, wherein said change gear control module varies a rotation speed of the internal combustion engine to increase the direct driving force .

9. A power output apparatus in accordance with any one of claims 1 through 8, wherein the electric power-mechanical power input output mechanism comprises:
a three shaft-type power input output module that is linked to three shafts, the output shaft of the internal combustion engine , the driveshaft , and a third shaft , and inputs and outputs power from and to a residual one shaft based on powers input from and output to any two shafts among the three shafts ; and
a generator that inputs and outputs power from and to the third shaft.

10. A power output apparatus in accordance with any one of claims 1 through 8, wherein the electric power-mechanical power input output mechanism comprises :
a pair-rotor motor that has a first rotor connected to the output shaft of the internal combustion engine and a second rotor connected to the driveshaft, and is driven to rotate through relative rotation of the first rotor to the second rotor.

11. A motor vehicle, comprising:
an internal combustion engine;
an electric power-mechanical power input output mechanism that is connected to an output shaft of the internal combustion engine and to a driveshaft linked to an axle and transmits at least part of output power of the internal combustion engine to the driveshaft through input and output of electric power and mechanical power,- a motor that is capable of inputting and outputting power,- a gearshift transmission structure that transmits power between a rotating shaft of the motor and the driveshaft with a variable setting of a gear ratio,- an accumulator unit that inputs and outputs electric power from and to the electric power-mechanical power input output mechanism and the motor,- and
a change gear control module that, in response to a decrease in driving force transmitted from the motor to the driveshaft during a change of the gear ratio in the gearshift transmission structure in a state of output of a positive driving force from the motor, controls the internal combustion engine and the electric power-mechanical power input output mechanism to increase a direct driving force, which is directly transmitted from the internal combustion engine to the driveshaft via the electric power-mechanical power input output mechanism, while controlling the motor and the gearshift transmission structure to cause the motor to consume at least part of electric power generated by the electric power-mechanical power input output mechanism under the condition of increasing direct driving force.

12. A motor vehicle in accordance with claim 11, wherein the gearshift transmission structure switches over an engagement state of an engagement member via a semi-engagement transition to change the setting of the gear ratio, and
said change gear control module controls the motor and the gearshift transmission structure to adjust the semi-engagement transition of the engagement member based on a driving force output from the motor and to cause the motor to consume at least part of the electric power generated by the electric power-mechanical power input output mechanism under the condition of the increasing direct driving force.

13 . A control method of a power output apparatus , which includes : an internal combustion engine ,- an electric power-mechanical power input output mechanism that is connected to an output shaft of the internal combustion engine and to a driveshaft and transmits at least part of output power of the internal combustion engine to the driveshaft through input and output of electric power and mechanical power,- a motor that is capable of inputting and outputting power; a gearshift transmission structure that transmits power between a rotating shaft of the motor and the driveshaft with a variable setting of a gear ratio,- and an accumulator unit that inputs and outputs electric power from and to the electric power-mechanical power input output mechanism and the motor,
in response to a decrease in driving force transmitted from the motor to the driveshaft during a change of the gear ratio in the gearshift transmission structure in a state of output of a positive driving force from the motor, said control method controlling the internal combustion engine and the electric power-mechanical power input output mechanism to increase a direct driving force, which is directly transmitted from the internal combustion engine to the driveshaft via the electric power-mechanical power input output mechanism, while controlling the motor and the gearshift transmission structure to cause the motor to consume at least part of electric power generated by the electric power-mechanical power input output mechanism under the condition of increasing direct driving force .

14. A control method of the power output apparatus in accordance with claim 13 , wherein the gearshift transmission structure switches over an engagement state of an engagement member via a semi-engagement transition to change the gear ratio ,
said control method controlling the motor and the gearshift transmission structure to adjust the semi-engagement transition of the engagement member based on a driving force output from the motor and to cause the motor to consume at least part of the electric power generated by the electric power-mechanical power input output mechanism under the condition of the increasing direct driving force.