POWER OUTPUT APPARATUS FOR HYBRID
First Claim
1. A power output apparatus that outputs power from an internal combustion engine and power from a motor to a drive shaft, where the internal combustion engine is drivable with a changeable supply of an exhaust gas to an intake system of the internal combustion engine, said power output apparatus comprising:
- a changeover state control module that, under a changeover operation of the supply of the exhaust gas, controls the internal combustion engine to prevent a variation in load of the internal combustion engine until completion of the changeover operation, while controlling the motor to ensure output of a required driving force to the drive shaft.
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Accused Products
Abstract
Under a switchover operation of an EGR valve from OFF to ON or from ON to OFF, the control procedure of the invention keeps an engine power demand Pe*, which is to be output from an engine and is set corresponding to a torque demand Tr* to be output to a drive shaft, unchanged to a previous level (Previous Pe*) set immediately before the switchover operation of the EGR valve (step S120). A torque command Tm2* of a motor MG2 is set to ensure output of the torque demand Tr* to the drive shaft (step S126). The engine and motors MG1 and MG2 are then driven and controlled with preset target values and torque commands. Such control desirably prevents a variation in load of the engine simultaneous with the switchover operation of the EGR valve and accordingly ensures favorable emission control performance, while attaining output of the torque demand Tr* to the drive shaft.
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Citations
10 Claims
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1. A power output apparatus that outputs power from an internal combustion engine and power from a motor to a drive shaft, where the internal combustion engine is drivable with a changeable supply of an exhaust gas to an intake system of the internal combustion engine, said power output apparatus comprising:
a changeover state control module that, under a changeover operation of the supply of the exhaust gas, controls the internal combustion engine to prevent a variation in load of the internal combustion engine until completion of the changeover operation, while controlling the motor to ensure output of a required driving force to the drive shaft. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
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9. A motor vehicle that is driven by outputting power from an internal combustion engine and power from a motor to a drive shaft linked to an axle of said motor vehicle, where the internal combustion engine is drivable with a changeable supply of an exhaust gas to an intake system of the internal combustion engine, said motor vehicle comprising:
a changeover state control module that, under a changeover operation of the supply of the exhaust gas, controls the internal combustion engine to prevent a variation in load of the internal combustion engine until completion of the changeover operation, while controlling the motor to ensure output of a required driving force to the drive shaft.
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10. A control method of a power output apparatus that outputs power from an internal combustion engine and power from a motor to a drive shaft, where the internal combustion engine is drivable with a changeable supply of an exhaust gas to an intake system of the internal combustion engine, said power output method comprising the step of:
under a changeover operation of the supply of the exhaust gas, controlling the internal combustion engine to prevent a variation in load of the internal combustion engine until completion of the changeover operation, while controlling the motor to ensure output of a required driving force to the drive shaft.
Specification