Hybrid vehicle and control method of the same
First Claim
1. A hybrid vehicle comprising:
- an internal combustion engine;
a purifying unit including a catalyst for purifying exhaust gas exhausted from said internal combustion engine;
an electric power-mechanical power input output mechanism that is connected to a first axle that is any one of axles and an output shaft of said internal combustion engine and can input and output power to said first axle and said output shaft with input and output of electric power and mechanical power;
an electric motor that can input and output power to said first axle or a second axle that is any one of axles different from said first axle;
an accumulator unit that can supply and receive electric power to and from said electric power-mechanical power input output mechanism and said electric motor;
a fuel supply stop determination module that determines whether a stop of fuel supply to said internal combustion engine can be prohibited based on a state of said accumulator unit;
an operation condition setting module that sets any one of a plurality of operation conditions that define, in different manners, settable ranges of a required driving force at least required for driving as an operation condition for execution, and allows a driver to select an arbitrary operation condition under a predetermined condition;
a required driving force setting module that sets the required driving force according to said set operation condition for execution; and
a control unit that controls said internal combustion engine, said electric power-mechanical power input output mechanism, and said electric motor so that a driving force based on said set required driving force is outputted with the stop of said fuel supply, when a deceleration demand is made in a state where said operation condition setting module allows selection of said arbitrary operation condition, and said fuel supply stop determination module determines that the stop of said fuel supply cannot be prohibited, and controls said internal combustion engine, said electric power-mechanical power input output mechanism, and said electric motor so that said internal combustion engine substantially performs self-sustaining operation at a predetermined rotation speed and a driving force based on said set required driving force is outputted, when said deceleration demand is made and said fuel supply stop determination module determines that the stop of said fuel supply can be prohibited.
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Accused Products
Abstract
In a hybrid vehicle 20, when a deceleration demand based on accelerator-off is made in selecting an S position that allows arbitrary selection of shift positions SP1 to SP6, and fuel cut cannot be prohibited from a state of a battery 50, an engine 22 and motors MG1 and MG2 are controlled so that a driving force based on a torque demand Tr* is outputted with the fuel cut (Steps S410, S420, S360 to S400). When the deceleration demand based on the accelerator-off is made in selecting the S position, and the fuel cut can be prohibited from the state of the battery 50, the engine 22 and the motors MG1 and MG2 are controlled so that the engine 22 substantially performs self-sustaining operation at a target rotation speed Ne0 and a driving force based on the torque demand Tr* is outputted (Steps S340 to S400).
23 Citations
13 Claims
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1. A hybrid vehicle comprising:
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an internal combustion engine; a purifying unit including a catalyst for purifying exhaust gas exhausted from said internal combustion engine; an electric power-mechanical power input output mechanism that is connected to a first axle that is any one of axles and an output shaft of said internal combustion engine and can input and output power to said first axle and said output shaft with input and output of electric power and mechanical power; an electric motor that can input and output power to said first axle or a second axle that is any one of axles different from said first axle; an accumulator unit that can supply and receive electric power to and from said electric power-mechanical power input output mechanism and said electric motor; a fuel supply stop determination module that determines whether a stop of fuel supply to said internal combustion engine can be prohibited based on a state of said accumulator unit; an operation condition setting module that sets any one of a plurality of operation conditions that define, in different manners, settable ranges of a required driving force at least required for driving as an operation condition for execution, and allows a driver to select an arbitrary operation condition under a predetermined condition; a required driving force setting module that sets the required driving force according to said set operation condition for execution; and a control unit that controls said internal combustion engine, said electric power-mechanical power input output mechanism, and said electric motor so that a driving force based on said set required driving force is outputted with the stop of said fuel supply, when a deceleration demand is made in a state where said operation condition setting module allows selection of said arbitrary operation condition, and said fuel supply stop determination module determines that the stop of said fuel supply cannot be prohibited, and controls said internal combustion engine, said electric power-mechanical power input output mechanism, and said electric motor so that said internal combustion engine substantially performs self-sustaining operation at a predetermined rotation speed and a driving force based on said set required driving force is outputted, when said deceleration demand is made and said fuel supply stop determination module determines that the stop of said fuel supply can be prohibited. - View Dependent Claims (2, 3, 4, 5, 6, 7)
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8. A control method of a hybrid vehicle including:
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an internal combustion engine; a purifying unit including a catalyst for purifying exhaust gas exhausted from said internal combustion engine; an electric power-mechanical power input output mechanism that is connected to a first axle that is any one of axles and an output shaft of said internal combustion engine and can input and output power to said first axle and said output shaft with input and output of electric power and mechanical power; an electric motor that can input and output power to said first axle or a second axle that is any one of axles different from said first axle; an accumulator unit that can supply and receive electric power to and from said electric power-mechanical power input output mechanism and said electric motor; and an operation condition setting module that sets any one of a plurality of operation conditions that define, in different manners, driving force setting constraints for determining ranges of a required driving force at least required for driving as an operation condition for execution, and allows a driver to select an arbitrary operation condition under a predetermined condition, said control method comprising the step of; (a) controlling said internal combustion engine, said electric power-mechanical power input output mechanism, and said electric motor so that a driving force based on the required driving force set according to said set operation condition for execution is outputted with the stop of the fuel supply to said internal combustion engine, when a deceleration demand is made in a state where said operation condition setting module allows selection of said arbitrary operation condition, and the stop of the fuel supply to said internal combustion engine cannot be prohibited from a state of said accumulator unit, and controlling said internal combustion engine, said electric power-mechanical power input output mechanism, and said electric motor so that said internal combustion engine substantially performs self-sustaining operation at a predetermined rotation speed and a driving force based on the required driving force set according to said set operation condition for execution is outputted, when said deceleration demand is made and the stop of said fuel supply can be prohibited from the state of said accumulator unit. - View Dependent Claims (9, 10, 11, 12, 13)
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Specification