Mode transition control system for hybrid vehicle
First Claim
1. A mode transition control apparatus for a hybrid vehicle, the mode transition control apparatus comprising:
- a hybrid drive system including;
a first clutch disposed between an engine and a motor generator; and
a second clutch disposed between the motor generator and wheels;
an engine braking request judging section configured to judge whether a request of an engine braking is present during a motor regenerative braking performed by the motor generator; and
a mode transition control section configured to perform a mode transition control of the hybrid drive system in accordance with a transition request, to decrease a torque capacity of the second clutch being in an engaged state in response to the judgment that the request of the engine braking is present, and to bring the first clutch from a disengaged state to the engaged state to shift to the engine braking.
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Accused Products
Abstract
A hybrid vehicle mode transition control apparatus includes a hybrid drive system having a first clutch disposed between an engine and a motor generator, and a second clutch disposed between the motor generator and wheels; an engine braking request judging section configured to judge whether a request of an engine braking is present during a motor regenerative braking performed by the motor generator, and a mode transition control section configured to perform a mode transition control of the hybrid drive system in accordance with a transition request. The mode transition control apparatus is configured to decrease a torque capacity of the second clutch being in an engaged state in response to the judgment that the request of the engine braking is present, and to bring the first clutch from a disengaged state to the engaged state to shift to the engine braking.
48 Citations
9 Claims
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1. A mode transition control apparatus for a hybrid vehicle, the mode transition control apparatus comprising:
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a hybrid drive system including;
a first clutch disposed between an engine and a motor generator; and
a second clutch disposed between the motor generator and wheels;
an engine braking request judging section configured to judge whether a request of an engine braking is present during a motor regenerative braking performed by the motor generator; and
a mode transition control section configured to perform a mode transition control of the hybrid drive system in accordance with a transition request, to decrease a torque capacity of the second clutch being in an engaged state in response to the judgment that the request of the engine braking is present, and to bring the first clutch from a disengaged state to the engaged state to shift to the engine braking. - View Dependent Claims (2, 3, 4, 5, 6, 7)
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8. A mode transition control method for a hybrid vehicle including a hybrid drive system having a first clutch disposed between an engine and a motor generator, and a second clutch disposed between the motor generator and wheels, the mode transition control method comprising:
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judging whether a request of an engine braking is present during a motor regenerative braking performed by the motor generator;
performing a mode transition control of the hybrid drive system in accordance with a transition request;
decreasing a torque capacity of the second clutch being in an engaged state in response to the judgment that the request of the engine braking is present; and
bringing the first clutch from a disengaged state to the engaged state to shift to the engine braking.
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9. A mode transition control apparatus for a hybrid vehicle, the mode transition control apparatus comprising:
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a hybrid drive system including;
a first clutch disposed between an engine and a motor generator; and
a second clutch disposed between the motor generator and wheels;
first means for judging whether a request of an engine braking is present during a motor regenerative braking performed by the motor generator;
second means performing a mode transition control of the hybrid drive system in accordance with a transition request;
third means for decreasing a torque capacity of the second clutch being in an engaged state in response to the judgment that the request of the engine braking is present; and
fourth means for bringing the first clutch from a disengaged state to the engaged state to shift to the engine braking.
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Specification