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US 8,712,619 B2Granted
Vehicle and method for controlling vehicle
AssigneeToyota Jidosha Kabushiki Kaisha
InventorsHidetoshi Kusumi, Sumikazu Syamoto, Kazumasa Arai
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Abstract
A vehicle is equipped with a battery configured so as to be rechargeable, a motor generator configured so as to generate the driving force of the vehicle by use of electric power stored in the battery, a switch configured so as to switch between generation of a command for extending the use period of the battery and stop of generation of the command, and an ECU for controlling the state of charge of the battery. The ECU sets the control range of SOC of the battery. When the switch stops generation of the command, the ECU sets the control range to a first range. Meanwhile, when a command is generated by the switch, the ECU sets the control range to a second range narrower than the first range.
Claims14
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 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;
- and
- a controller for controlling state of charge of said power storage device,
- said controller including
- a state estimating unit configured to calculate an index value indicating said state of charge, and
- a setting unit configured to set a control range of said index value;
- wherein
- said setting unit sets said control range to a first range while said command generating unit stops generation of said command, and sets said control range to a second range narrower than said first range, when said command is generated by said command generating unit;
- said controller further includes
- a distance calculating unit configured to estimate a possible distance of travel by said vehicle based on said control range and degree of deterioration of said power storage device;
- said possible distance of travel includes
- a first possible distance of travel, and
- a second possible distance of travel;
- said first possible distance of travel represents a distance said vehicle can travel if a range of variation of said index value during traveling of said vehicle is within said first range;
- and
- said second possible distance of travel represents a distance said vehicle can travel if said range of variation of said index value during traveling of said vehicle is within said second range;
- said vehicle further comprising;
- a display device configured to be able to display said first and second possible distances of travel calculated by said distance calculating unit.
17 more elements
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 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,
- a controller for controlling state of charge of said power storage device, and
- a display device;
- said method comprising the steps of:
- calculating an index value indicating said state of charge;
- and
- setting a control range of said index value;
- wherein
- at said step of setting, said control range is set to a first range if said command generating unit stops generation of said command, and said control range is set to a second range narrower than said first range if said command is generated by said command generating unit;
- said control method further comprising the step of
- estimating a possible distance of travel by said vehicle based on said control range and degree of deterioration of said power storage device;
- wherein
- said possible distance of travel includes
- a first possible distance of travel, and
- a second possible distance of travel;
- said first possible distance of travel represents a distance said vehicle can travel if a range of variation of said index value during traveling of said vehicle is within said first range;
- and
- said second possible distance of travel represents a distance said vehicle can travel if said range of variation of said index value during traveling of said vehicle is within said second range;
- said control method further comprising the step of
- outputting said first and second possible distances of travel to said display device so that said first and second possible distances of travel can be displayed on said display device.
20 more elements
Dependencies are inferred from the claim text.