CONTROL DEVICE FOR HYBRID VEHICLE, AND HYBRID VEHICLE INCORPORATING CONTROL DEVICE
1 Assignment
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Accused Products
Abstract
An ECU includes a running mode control unit, a Wout control unit, and an engine start/stop determination unit. The running mode control unit controls switching of a running mode including a CD mode in which an engine is stopped and running using a motor generator alone is given priority, and a CS mode in which the engine is operated and the SOC of a power storage device is maintained at a predetermined target. The engine start/stop determination unit carries out a start determination of the engine based on a discharge allowable power indicating electric power that can be discharged by the power storage device. The Wout control unit modifies the discharge allowable power based on the running mode and operation/stop of the engine.
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Citations
31 Claims
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1-11. -11. (canceled)
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12. A control device for a hybrid vehicle,
said hybrid vehicle including an internal combustion engine generating vehicle driving force, a power storage device capable of being charged and discharged, and an electric motor receiving supply of electric power from said power storage device for generating vehicle driving force, said control device controlling switching of a running mode including a first mode in which said internal combustion engine is not operated to maintain a state of charge indicating a charging state of said power storage device, and a second mode in which said internal combustion engine is operated or stopped, and said internal combustion engine is operated to maintain said state of charge, and said control device setting a startup power larger, when said running mode is at said first mode, than when said running mode is at said second mode, said startup power indicating a vehicle required power that causes said internal combustion engine to be started when said hybrid vehicle is running using said electric motor with said internal combustion engine stopped.
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16. A control device for a hybrid vehicle,
said hybrid vehicle including an internal combustion engine generating vehicle driving force, a power storage device capable of being charged and discharged, and an electric motor receiving supply of electric power from said power storage device for generating vehicle driving force, said control device setting a running mode at a first mode in which the hybrid vehicle runs without maintaining a state of charge indicating a charging state of said power storage device until said state of charge is reduced to a predetermined threshold value, and switching said running mode to a second mode in which the hybrid vehicle runs with said state of charge maintained when said state of charge reaches said predetermined threshold value, and said control device setting a startup power larger, when said running mode is at said first mode, than when said running mode is at said second mode, said startup power indicating a vehicle required power that causes said internal combustion engine to be started when said hybrid vehicle is running using said electric motor with said internal combustion engine stopped.
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17. A control device for a hybrid vehicle,
said hybrid vehicle including an internal combustion engine generating vehicle driving force, a power storage device capable of being charged and discharged, and an electric motor receiving supply of electric power from said power storage device for generating vehicle driving force, said control device controlling switching of a running mode including a first mode in which the hybrid vehicle runs with at least said electric motor as a driving force source and a state of charge indicating a charging state of said power storage device becoming lower in accordance with increase of a running distance, and a second mode in which said internal combustion engine is operated or stopped, the hybrid vehicle runs with at least one of said internal combustion engine and said electric motor as the driving force source, and said state of charge is maintained, and said control device setting a startup power larger, when said running mode is at said first mode, than when said running mode is at said second mode, said startup power indicating a vehicle required power that causes said internal combustion engine to be started when said hybrid vehicle is running using said electric motor with said internal combustion engine stopped.
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18. A control device for a hybrid vehicle,
said hybrid vehicle including an internal combustion engine generating vehicle driving force, a power storage device capable of being charged and discharged, and an electric motor receiving supply of electric power from said power storage device for generating vehicle driving force, said control device comprising: -
a running mode control unit controlling switching of a running mode including a first mode in which said internal combustion engine is not operated to maintain a state of charge indicating a charging state of said power storage device, and a second mode in which said internal combustion engine is operated or stopped, and said internal combustion engine is operated to maintain said state of charge, and a discharge allowable power control unit increasing, when said running mode is at said first mode and said internal combustion engine is stopped, a discharge allowable power that can be discharged by said power storage device than when the running mode is at said first mode and said internal combustion engine is operating, or than when said running mode is at said second mode. - View Dependent Claims (19, 20, 21, 22, 23, 24, 25, 26, 27, 31)
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28. A control device for a hybrid vehicle,
said hybrid vehicle including an internal combustion engine generating vehicle driving force, a power storage device capable of being charged and discharged, and an electric motor receiving supply of electric power from said power storage device for generating vehicle driving force, said control device comprising: -
a running mode control unit setting a running mode at a first mode in which the hybrid vehicle runs without maintaining a state of charge indicating a charging state of said power storage device until said state of charge is reduced to a predetermined threshold value, and switching said running mode to a second mode in which the hybrid vehicle runs with said state of charge maintained when said state of charge reaches said predetermined threshold value, and a discharge allowable power control unit increasing, when said running mode is at said first mode and said internal combustion engine is stopped, a discharge allowable power that can be discharged by said power storage device than when said running mode is at said first mode and said internal combustion engine is operating, or than when said running mode is at said second mode.
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29. A control device for a hybrid vehicle,
said hybrid vehicle including an internal combustion engine generating vehicle driving force, a power storage device capable of being charged and discharged, and an electric motor receiving supply of electric power from said power storage device for generating vehicle driving force, said control device comprising: -
a running mode control unit controlling switching of a running mode including a first mode in which the hybrid vehicle runs with at least said electric motor as a driving force source and a state of charge indicating a charging state of said power storage device becoming lower in accordance with increase of a running distance, and a second mode in which said internal combustion engine is operated or stopped, the hybrid vehicle runs with at least one of said internal combustion engine and said electric motor as the driving force source, and said state of charge is maintained, and a discharge allowable power control unit increasing, when said running mode is at said first mode and said internal combustion engine is stopped, a discharge allowable power that can be discharged by said power storage device than when the running mode is at said first mode and said internal combustion engine is operating, or than when said running mode is at said second mode.
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Specification