Power output apparatus, method of controling the same, and automobile
First Claim
1. A power output apparatus that outputs power to a drive shaft, said power output apparatus comprising:
- an internal combustion engine;
an electric power-mechanical power input-output unit that is linked with an output shaft of said internal combustion engine and with said drive shaft, and maintains or changes a driving state of said internal combustion engine and outputs at least part of power from said internal combustion engine to said drive shaft through inputs and outputs of electric power and mechanical power;
a motor that is capable of inputting and outputting power from and to said drive shaft;
an accumulator that is capable of supplying and receiving electric power to and from said electric power-mechanical power input-output unit and said motor; and
a controller comprising;
an input- output restriction setting module that sets an input restriction and an output restriction of said accumulator;
a drivable range setting module that sets a drivable range of said electric power-mechanical power input-output unit based on the settings of input and output restrictions;
a power demand setting module that sets a power demand required for said drive shaft in response to an operator'"'"'s manipulation; and
a driving control module that controls said internal combustion engine, said electric power-mechanical power input-output unit, and said motor to drive said electric power-mechanical power input-output unit in the setting of drivable range and to output a power corresponding to the setting of power demand to said drive shaft.
1 Assignment
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Accused Products
Abstract
The technique of the invention sets an upper limit torque Tm1max and a lower limit torque Tm1min output from a motor generator, based on input and output restrictions Win and Wout of a battery, a motor electric power demand Pm2, an auxiliary machinery electric power demand Pcsm, and a potential loss Ploss (step S150). The technique then restricts a target revolution speed Ne* of an engine to make an output torque of the motor generator within a range of the lower limit torque Tm1min to the upper limit torque Tm1max (steps S180 to S200). This arrangement ensures output of a torque in response to a driver'"'"'s requirement, while effectively preventing the battery from being charged or discharged excessively.
24 Citations
19 Claims
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1. A power output apparatus that outputs power to a drive shaft, said power output apparatus comprising:
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an internal combustion engine;
an electric power-mechanical power input-output unit that is linked with an output shaft of said internal combustion engine and with said drive shaft, and maintains or changes a driving state of said internal combustion engine and outputs at least part of power from said internal combustion engine to said drive shaft through inputs and outputs of electric power and mechanical power;
a motor that is capable of inputting and outputting power from and to said drive shaft;
an accumulator that is capable of supplying and receiving electric power to and from said electric power-mechanical power input-output unit and said motor; and
a controller comprising;
an input- output restriction setting module that sets an input restriction and an output restriction of said accumulator;
a drivable range setting module that sets a drivable range of said electric power-mechanical power input-output unit based on the settings of input and output restrictions;
a power demand setting module that sets a power demand required for said drive shaft in response to an operator'"'"'s manipulation; and
a driving control module that controls said internal combustion engine, said electric power-mechanical power input-output unit, and said motor to drive said electric power-mechanical power input-output unit in the setting of drivable range and to output a power corresponding to the setting of power demand to said drive shaft. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 17)
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11. An automobile with an internal combustion engine mounted thereon,
said automobile comprising: -
an electric power-mechanical power input-output unit that is linked with an output shaft of said internal combustion engine and with a drive shaft mechanically connected to an axle , and maintains or changes a driving state of said internal combustion engine and outputs at least part of power from said internal combustion engine to said drive shaft through inputs and outputs of electric power and mechanical power;
a motor that is capable of inputting and outputting power from and to said drive shaft;
an accumulator that is capable of supplying and receiving electric power to and from said electric power-mechanical power input-output unit and said motor; and
a controller comprising;
an input-output restriction setting module that sets an input restriction and an output restriction of said accumulator;
a drivable range setting module that sets a drivable range of said electric power-mechanical power input-output unit based on the settings of input and output restrictions;
a power demand setting module that sets a power demand required for said drive shaft in response to an operator'"'"'s manipulation; and
a driving control module that controls said internal combustion engine, said electric power-mechanical power input-output unit, and said motor to drive said electric power-mechanical power input-output unit in the setting of drivable range and to output a power corresponding to the setting of power demand to said drive shaft. - View Dependent Claims (12, 13, 14, 15, 16)
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18. A control method of controlling a power output apparatus, said power output apparatus comprising:
- an internal combustion engine;
an electric power-mechanical power input-output unit that is linked with an output shaft of said internal combustion engine and with a drive shaft, and maintains or changes a driving state of said internal combustion engine and outputs at least part of power from said internal combustion engine to said drive shaft through inputs and outputs of electric power and mechanical power;
a motor that is capable of inputting and outputting power from and to said drive shaft; and
an accumulator that is capable of supplying and receiving electric power to and from said electric power-mechanical power input-output unit and said motor,said control method comprising the steps of;
(a) setting an input restriction and an output restriction of said accumulator;
(b) setting a drivable range of said electric power-mechanical power input-output unit, based on the settings of input and output restrictions, a motor electric power demand to be input to and output from said motor, an auxiliary machinery electric power to be supplied from said accumulator to auxiliary machinery, and a driving state of said electric power-mechanical power input-output unit;
(c) setting a power demand required for said drive shaft in response to an operator'"'"'s manipulation; and
(d) controlling said internal combustion engine, said electric power-mechanical power input-output unit, and said motor to drive said electric power-mechanical power input-output unit in the setting of drivable range and to output a power corresponding to the setting of power demand to said drive shaft. - View Dependent Claims (19)
- an internal combustion engine;
Specification