초록 ▼

When an ignition key is turned ON, a control apparatus predicts the arrival time to a chargeable location (such as home). When the control apparatus determines that the expected arrival time is in the nighttime, it sets SOC control upper and lower limit values for an EV traveling-importance mode tha

When an ignition key is turned ON, a control apparatus predicts the arrival time to a chargeable location (such as home). When the control apparatus determines that the expected arrival time is in the nighttime, it sets SOC control upper and lower limit values for an EV traveling-importance mode that are lower than SOC control upper and lower limit values for an HV traveling-importance mode, and controls an SOC of a battery based on the upper and lower limit values.

대표청구항 ▼

1. A hybrid vehicle incorporating an internal combustion engine and a rotating electric machine as its motive power sources, comprising: an electric power storage apparatus capable of being charged and discharged and supplying electric power to said rotating electric machine;an electric power input

1. A hybrid vehicle incorporating an internal combustion engine and a rotating electric machine as its motive power sources, comprising: an electric power storage apparatus capable of being charged and discharged and supplying electric power to said rotating electric machine;an electric power input portion receiving electric power provided from a source external to the vehicle for charging said electric power storage apparatus;an electric power generation apparatus generating electric power using an output from said internal combustion engine and supplying the generated electric power to said electric power storage apparatus;control means for controlling a state of charge of said electric power storage apparatus to attain a prescribed control range or control target value; andprediction means for predicting an arrival time to a location where said electric power storage apparatus can be charged from said electric power input portion,said control means for switching between a first mode of driving by priority said internal combustion engine and said electric power generation apparatus and a second mode of stopping said internal combustion engine and said electric power generation apparatus and using by priority electric power stored in said electric power storage apparatus, andsaid control means making, when an electricity price in a specified time slot in which the arrival time predicted by said prediction means is included is less expensive than an electricity price in a time slot other than said specified time slot, selection of said second mode as well as setting said prescribed control range or control target value to be lower than when said arrival time is included in the time slot other than said specified time slot. 2. The hybrid vehicle according to claim 1, wherein said specified time slot includes a late-night electricity time slot where the electricity price is inexpensive. 3. The hybrid vehicle according to claim 2, wherein said electric power generation apparatus includes an additional rotating electric machine having its rotation shaft mechanically linked to a crankshaft of said internal combustion engine,the hybrid vehicle further comprising:a first inverter provided corresponding to said rotating electric machine;a second inverter provided corresponding to said additional rotating electric machine; andinverter control means for controlling said first and second inverters,said rotating electric machine and said additional rotating electric machine respectively including first and second three-phase coils as stator coils,said electric power input portion includinga first terminal connected to a neutral point of said first three-phase coil, anda second terminal connected to a neutral point of said second three-phase coil,said inverter control means controlling said first and second inverters so that alternating-current power provided across said first and second terminals is converted into direct-current power and provided to said electric power storage apparatus. 4. The hybrid vehicle according to claim 1, further comprising an input apparatus for setting a traveling schedule of the vehicle,said control means stopping setting said prescribed control range or control target value to be low, when a time difference between the arrival time predicted by said prediction means and a scheduled time for starting next traveling determined based on the traveling schedule set from said input apparatus is shorter than a prescribed time period. 5. The hybrid vehicle according to claim 4, wherein said electric power generation apparatus includes an additional rotating electric machine having its rotation shaft mechanically linked to a crankshaft of said internal combustion engine,the hybrid vehicle further comprising:a first inverter provided corresponding to said rotating electric machine;a second inverter provided corresponding to said additional rotating electric machine; andinverter control means for controlling said first and second inverters,said rotating electric machine and said additional rotating electric machine respectively including first and second three-phase coils as stator coils,said electric power input portion includinga first terminal connected to a neutral point of said first three-phase coil, anda second terminal connected to a neutral point of said second three-phase coil,said inverter control means controlling said first and second inverters so that alternating-current power provided across said first and second terminals is converted into direct-current power and provided to said electric power storage apparatus. 6. The hybrid vehicle according to claim 1, further comprising learning means for learning a traveling schedule of said vehicle based on a traveling pattern of the vehicle,said control means stopping setting said prescribed control range or control target value to be low, when a time difference between the arrival time predicted by said prediction means and a scheduled time for starting next traveling determined based on the traveling schedule learned by said learning means is shorter than a prescribed time period. 7. The hybrid vehicle according to claim 6, wherein said electric power generation apparatus includes an additional rotating electric machine having its rotation shaft mechanically linked to a crankshaft of said internal combustion engine,the hybrid vehicle further comprising:a first inverter provided corresponding to said rotating electric machine;a second inverter provided corresponding to said additional rotating electric machine; andinverter control means for controlling said first and second inverters,said rotating electric machine and said additional rotating electric machine respectively including first and second three-phase coils as stator coils,said electric power input portion includinga first terminal connected to a neutral point of said first three-phase coil, anda second terminal connected to a neutral point of said second three-phase coil,said inverter control means controlling said first and second inverters so that alternating-current power provided across said first and second terminals is converted into direct-current power and provided to said electric power storage apparatus. 8. The hybrid vehicle according to claim 1, wherein said electric power generation apparatus includes an additional rotating electric machine having its rotation shaft mechanically linked to a crankshaft of said internal combustion engine,the hybrid vehicle further comprising:a first inverter provided corresponding to said rotating electric machine;a second inverter provided corresponding to said additional rotating electric machine; andinverter control means for controlling said first and second inverters,said rotating electric machine and said additional rotating electric machine respectively including first and second three-phase coils as stator coils,said electric power input portion includinga first terminal connected to a neutral point of said first three-phase coil, anda second terminal connected to a neutral point of said second three-phase coil,said inverter control means controlling said first and second inverters so that alternating-current power provided across said first and second terminals is converted into direct-current power and provided to said electric power storage apparatus. 9. The hybrid vehicle according to claim 1, wherein the prescribed control range or control target valve is only set to be lower when the specified time slot defines a late-night electricity time slot where the electricity price is relatively inexpensive. 10. A controlling method of a hybrid vehicle incorporating an internal combustion engine and a rotating electric machine as its motive power sources, said hybrid vehicle including: an electric power storage apparatus capable of being charged and discharged and supplying electric power to said rotating electric machine;an electric power input portion receiving electric power provided from a source external to the vehicle for charging said electric power storage apparatus; andan electric power generation apparatus generating electric power using an output from said internal combustion engine and supplying the generated electric power to said electric power storage apparatus,said hybrid vehicle switching between a first mode of driving by priority said internal combustion engine and said electric power generation apparatus and a second mode of stopping said internal combustion engine and said electric power generation apparatus and using by priority electric power stored in said electric power storage apparatus,said controlling method comprising:a first step of predicting an arrival time to a location where said electric power storage apparatus can be charged from said electric power input portion;a second step of making, when an electricity price in a specified time slot in which the predicted arrival time is included is less expensive than an electricity price in a time slot other than said specified time slot, selection of said second mode as well as setting a control range or control target value of a state amount representing a state of charge of said electric power storage apparatus to be lower than when said arrival time is included in the time slot other than said specified time slot; anda third step of controlling said state amount to attain said control range or control target value. 11. The controlling method according to claim 10, wherein said specified time slot includes a late-night electricity time slot where the electricity price is inexpensive. 12. The controlling method according to claim 11, wherein said electric power generation apparatus includes an additional rotating electric machine having its rotation shaft mechanically linked to a crankshaft of said internal combustion engine,said hybrid vehicle further including:a first inverter provided corresponding to said rotating electric machine; anda second inverter provided corresponding to said additional rotating electric machine,said rotating electric machine and said additional rotating electric machine respectively including first and second three-phase coils as stator coils,said electric power input portion including:a first terminal connected to a neutral point of said first three-phase coil; anda second terminal connected to a neutral point of said second three-phase coil,said controlling method further comprising a ninth step of controlling said first and second inverters so that alternating-current power provided across said first and second terminals is converted into direct-current power and provided to said electric power storage apparatus. 13. The controlling method according to claim 10, wherein said hybrid vehicle further includes an input apparatus for setting a traveling schedule of the vehicle,said controlling method further comprising:a fourth step of calculating a time difference between the arrival time predicted in said first step and a scheduled time for starting next traveling determined based on the traveling schedule set from said input apparatus; anda fifth step of stopping, in said second step, setting said control range or control target value to be low, when said calculated time difference is shorter than a prescribed time period. 14. The controlling method according to claim 13, wherein said electric power generation apparatus includes an additional rotating electric machine having its rotation shaft mechanically linked to a crankshaft of said internal combustion engine,said hybrid vehicle further including:a first inverter provided corresponding to said rotating electric machine; anda second inverter provided corresponding to said additional rotating electric machine,said rotating electric machine and said additional rotating electric machine respectively including first and second three-phase coils as stator coils,said electric power input portion including:a first terminal connected to a neutral point of said first three-phase coil; anda second terminal connected to a neutral point of said second three-phase coil,said controlling method further comprising a ninth step of controlling said first and second inverters so that alternating-current power provided across said first and second terminals is converted into direct-current power and provided to said electric power storage apparatus. 15. The controlling method according to claim 10, further comprising: a sixth step of learning a traveling schedule of said vehicle based on a traveling pattern of the vehicle;a seventh step of calculating a time difference between the arrival time predicted in said first step and a scheduled time for starting next traveling determined based on the traveling schedule learned in said sixth step; andan eighth step of stopping, in said second step, setting said control range or control target value to be low, when said calculated time difference is shorter than a prescribed time period. 16. The controlling method according to claim 15, wherein said electric power generation apparatus includes an additional rotating electric machine having its rotation shaft mechanically linked to a crankshaft of said internal combustion engine,said hybrid vehicle further including:a first inverter provided corresponding to said rotating electric machine; anda second inverter provided corresponding to said additional rotating electric machine,said rotating electric machine and said additional rotating electric machine respectively including first and second three-phase coils as stator coils,said electric power input portion including:a first terminal connected to a neutral point of said first three-phase coil; anda second terminal connected to a neutral point of said second three-phase coil,said controlling method further comprising a ninth step of controlling said first and second inverters so that alternating-current power provided across said first and second terminals is converted into direct-current power and provided to said electric power storage apparatus. 17. The controlling method according to claim 10, wherein said electric power generation apparatus includes an additional rotating electric machine having its rotation shaft mechanically linked to a crankshaft of said internal combustion engine,said hybrid vehicle further including:a first inverter provided corresponding to said rotating electric machine; anda second inverter provided corresponding to said additional rotating electric machine,said rotating electric machine and said additional rotating electric machine respectively including first and second three-phase coils as stator coils,said electric power input portion including:a first terminal connected to a neutral point of said first three-phase coil; anda second terminal connected to a neutral point of said second three-phase coil,said controlling method further comprising a ninth step of controlling said first and second inverters so that alternating-current power provided across said first and second terminals is converted into direct-current power and provided to said electric power storage apparatus. 18. The controlling method according to claim 10, further comprising: setting the prescribed control range or control target valve to be lower only when the specified time slot defines a late-night electricity time slot where the electricity price is relatively inexpensive.