A vehicle is equipped with a battery, an electric motor configured so as to generate the driving force of the vehicle by use of the electric power stored in the battery, a charger configured so as to supply the electric power outputted from the power supply outside of the vehicle to the battery, and
A vehicle is equipped with a battery, an electric motor configured so as to generate the driving force of the vehicle by use of the electric power stored in the battery, a charger configured so as to supply the electric power outputted from the power supply outside of the vehicle to the battery, and an ECU configured so as to control the state of charge of the battery when the battery is charged. The ECU calculates an index value indicating the state of charge of the battery, and sets the control range thereof. The ECU raises the upper limit of the index value so that the possible travel distance of the vehicle becomes not less than the target distance when predetermined conditions on degradation of the battery are satisfied.
대표청구항▼
1. A vehicle, comprising: a power storage device configured to be rechargeable;an electric motor configured to generate driving force for driving said vehicle by using electric power stored in said storage device;a charging mechanism configured to supply electric power output from a power source out
1. A vehicle, comprising: a power storage device configured to be rechargeable;an electric motor configured to generate driving force for driving said vehicle by using electric power stored in said storage device;a charging mechanism configured to supply electric power output from a power source outside said vehicle to said power storage device; anda controller configured to control state of charge of said power storage device when said power storage device is charged,said controller including:a state estimating unit configured to calculate an index value indicating said state of charge;a detecting unit configured to detect abnormality occurred in said power storage device, anda setting unit configured to increase an upper limit value of said index value when prescribed condition related to deterioration of said power storage device is satisfied, whereinsaid setting unit is configured to set an amount of change of said upper limit value such that possible distance of travel of said vehicle attains to a target distance or longer, to make smaller said amount of change as the number of increase of said upper limit value increases, to increase said upper limit value repeatedly until said upper limit value reaches a standard value, to maintain said upper limit value at said standard value once said upper limit value reached the standard value, and to maintain said upper limit value at a present value when said abnormality is detected by said detecting unit. 2. The vehicle according to claim 1, wherein said prescribed condition is determined in advance based on period of use of said vehicle. 3. The vehicle according to claim 1, wherein said prescribed condition is determined in advance based on travel distance of said vehicle. 4. The vehicle according to claim 1, wherein said setting unit is capable of switching between a first mode having said upper limit value fixed and a second mode allowing adjustment of said upper limit value, and sets said amount of change in said second mode. 5. The vehicle according to claim 4, further comprising: a command generating unit configured to switch between generation of a command to extend a useable period of said power storage device and stopping of generation of said command, by a manual operation, whereinsaid setting unit selects said second mode from said first and second modes when said command generating unit generates said command, and selects said first mode from said first and second modes when said command generating unit stops generation of said command. 6. The vehicle according to claim 1, wherein said controller further includes:a detecting unit configured to detect any abnormality occurring in said power storage device; andsaid setting unit is configured to lower said upper limit value when said abnormality is detected by said detecting unit. 7. A method of controlling a vehicle, wherein said vehicle includes:a power storage device configured to be rechargeable;an electric motor configured to generate driving force for driving said vehicle by using electric power stored in said storage device;a charging mechanism configured to supply electric power output from a power source outside said vehicle to said power storage device; anda controller configured to control state of charge of said power storage device when said power storage device is charged,said method comprising the steps of:calculating an index value indicating said state of charge; andincreasing an upper limit value of said index value when prescribed condition related to deterioration of said power storage device is satisfied, wherein at said step of increasing the upper limit value, an amount of change of said upper limit value is set such that possible distance of travel of said vehicle attains to a target distance or longer;said control method further comprising the steps of:making smaller said amount of change as the number of increase of said upper limit value increases;limiting said upper limit value so that said upper limit value does not exceed a standard value when said upper limit value is increased repeatedly;detecting any abnormality occurring in said power storage device; andfixing said upper limit value at a present value said abnormality is detected. 8. The vehicle control method according to claim 7, wherein said prescribed condition is determined in advance based on period of use of said vehicle. 9. The vehicle control method according to claim 7, wherein said prescribed condition is determined in advance based on travel distance of said vehicle. 10. The vehicle control method according to claim 7, further comprising the step of: selecting one of a first mode having said upper limit value fixed and a second mode allowing adjustment of said upper limit value, whereinat said step of increasing said upper limit value, said amount of change is set when said second mode is selected. 11. The vehicle control method according to claim 10, wherein said vehicle further includes:a command generating unit configured to switch between generation of a command to extend a useable period of said power storage device and stopping of generation of said command, by a manual operation; andat said step of selecting, said second mode is selected from said first and second modes when said command generating unit generates said command, and said first mode is selected from said first and second modes when said command generating unit stops generation of said command. 12. The vehicle control method according to claim 7, further comprising the steps of: detecting any abnormality occurring in said power storage device; andlowering said upper limit value when said abnormality is detected.
연구과제 타임라인
LOADING...
LOADING...
LOADING...
LOADING...
LOADING...
이 특허에 인용된 특허 (3)
Arai, Takuichi, Battery system and battery system-equipped vehicle.
※ AI-Helper는 부적절한 답변을 할 수 있습니다.