Electric powered vehicle and control method for the same
First Claim
1. An electric powered vehicle comprising:
- a load device configured to be capable of converting kinetic energy of said electric powered vehicle into electric power;
an electric power feeding line for transmitting electric power output from said load device;
a main power storage device for receiving electric power from said load device via said electric power feeding line,a plurality of sub power storage devices provided parallel with each other;
a connection unit configured to allow electric connection of a selected one of said plurality of sub power storage devices to said electric power feeding line; and
a control device for controlling said load device and said connection unit,said control device includinga charging control unit for executing charging control for controlling input of electric power from said load device to said main power storage device and said selected sub power storage device according to a braking request of said electric powered vehicle,a switching control unit for executing switching control for switching electrical connection between said plurality of sub power storage devices and said electric power feeding line, when determination is made that switching of said selected sub power storage device is required based on a state of charge of each of said plurality of sub power storage devices, anda selection control unit for prohibiting, when said charging control is started first, said switching control by maintaining the state in which said selected sub power storage device is electrically connected to said feed line until said charging control is completed, and for prohibiting, when said switching control is started first, said charging control by prohibiting input of the electric power from the load device to said selected sub power storage device until said switching control is completed,wherein said load device includesa motor generator for executing regenerative braking as conversion of kinetic energy of said electric powered vehicle into electric power, and for generating said kinetic energy of said electric powered vehicle by receiving electric power, andan inverter having power fed by said electric power feeding line to drive said motor Generator, and providing, via said electric power feeding line, electric power generated by said motor generator by said regenerative braking.
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Accused Products
Abstract
A power supply system includes a main power storage device and a plurality of sub power storage devices. A converter is connected to a selected one of the sub power storage devices to perform voltage conversion bidirectionally between the selected sub power storage device and an electric power feeding line. A control device executes charging control for controlling input of electric power from a load device to the main power storage device and selected sub power storage device, and switching control for switching electrical connection between the plurality of sub power storage devices and electric power feeding line, according to a braking request of the electric powered vehicle. The control device prohibits or limits, until completion of one of the charging control and switching control, the other control.
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Citations
28 Claims
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1. An electric powered vehicle comprising:
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a load device configured to be capable of converting kinetic energy of said electric powered vehicle into electric power; an electric power feeding line for transmitting electric power output from said load device; a main power storage device for receiving electric power from said load device via said electric power feeding line, a plurality of sub power storage devices provided parallel with each other; a connection unit configured to allow electric connection of a selected one of said plurality of sub power storage devices to said electric power feeding line; and a control device for controlling said load device and said connection unit, said control device including a charging control unit for executing charging control for controlling input of electric power from said load device to said main power storage device and said selected sub power storage device according to a braking request of said electric powered vehicle, a switching control unit for executing switching control for switching electrical connection between said plurality of sub power storage devices and said electric power feeding line, when determination is made that switching of said selected sub power storage device is required based on a state of charge of each of said plurality of sub power storage devices, and a selection control unit for prohibiting, when said charging control is started first, said switching control by maintaining the state in which said selected sub power storage device is electrically connected to said feed line until said charging control is completed, and for prohibiting, when said switching control is started first, said charging control by prohibiting input of the electric power from the load device to said selected sub power storage device until said switching control is completed, wherein said load device includes a motor generator for executing regenerative braking as conversion of kinetic energy of said electric powered vehicle into electric power, and for generating said kinetic energy of said electric powered vehicle by receiving electric power, and an inverter having power fed by said electric power feeding line to drive said motor Generator, and providing, via said electric power feeding line, electric power generated by said motor generator by said regenerative braking. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14)
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15. A control method for an electric powered vehicle, said electric powered vehicle including
a load device configured to be capable of converting kinetic energy of said electric powered vehicle into electric power; -
an electric power feeding line for transmitting electric power output from said load device; a main power storage device for receiving electric power from said load device via said electric power feeding line, a plurality of sub power storage devices provided parallel with each other; a connection unit configured to allow electric connection of a selected one of said plurality of sub power storage devices to said electric power feeding line; and a control device for controlling said load device and said connection unit, said control method comprising the steps of; executing charging control for controlling input of electric power from said load device to said main power storage device and said selected sub power storage device, according to a braking request of said electric powered vehicle; executing switching control for switching electrical connection between said plurality of sub power storage devices and said electric power feeding line when determination is made that switching of said selected sub power storage device is required based on a state of charge of each of said plurality of sub power storage devices; and executing selection control to prohibit, when said charging control is started first, said switching control by maintaining the state in which said selected sub power storage device is electrically connected to said feed line until said charging control is completed, and to prohibit, when said switching control is started first, said charging control by prohibiting input of the electric power from the load device to the selected sub power storage device until said switching control is completed, wherein said load device includes a motor generator for executing regenerative braking as conversion of kinetic energy of said electric powered vehicle into electric power, and for generating said kinetic energy of said electric powered vehicle by receiving electric power, and an inverter having power fed by said electric power feeding line to drive said motor generator, and providing, via said electric power feeding line, electric power generated by said motor generator by said regenerative braking, wherein said load device includes a motor generator for executing regenerative braking as conversion of kinetic energy of said electric powered vehicle into electric power, and for generating said kinetic energy of said electric powered vehicle by receiving electric power, and an inverter having power fed by said electric power feeding line to drive said motor generator, and providing, via said electric power feeding line, electric power generated by said motor generator by said regenerative braking. - View Dependent Claims (16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28)
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Specification