CHARGING AND DISCHARGING DEVICE
First Claim
1. A charging and discharging device comprising:
- a switching circuit, an input of which is connected to a power supply, the switching circuit adjusting an output current to a power storing unit connected to an output of the switching circuit; and
a control unit configured to generate an ON/OFF signal to the switching circuit, whereinthe control unit includes;
a temperature-rise control unit configured to separately generate, based on at least a signal equivalent to temperature of the power storing unit, a first control signal for adjusting a ripple component of the output current to be capable of raising the temperature of the power storing unit and a second control signal for adjusting a non-ripple component of the output current; and
a PWM-pulse generating unit configured to generate the ON/OFF signal based on the first control signal and the second control signal and outputting the ON/OFF signal to the switching circuit.
1 Assignment
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Accused Products
Abstract
A charging and discharging device includes a switching circuit, an input of which is connected to a power supply, the switching circuit adjusting an output current IB to a power storing unit connected to an output of the switching circuit, and a control unit configured to generate an ON/OFF signal DGC to the switching circuit. The control unit includes a temperature-rise control unit configured to separately generate, based on a signal BTMP equivalent to the temperature of the power storing unit, a control signal FC for adjusting a ripple component of the output current IB and a control signal OFS for adjusting a non-ripple component of the output current IB and generates the ON/OFF signal DGC based on the control signal FC and the control signal OFS and outputs the ON/OFF signal DGC to the switching circuit.
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Citations
39 Claims
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1. A charging and discharging device comprising:
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a switching circuit, an input of which is connected to a power supply, the switching circuit adjusting an output current to a power storing unit connected to an output of the switching circuit; and a control unit configured to generate an ON/OFF signal to the switching circuit, wherein the control unit includes; a temperature-rise control unit configured to separately generate, based on at least a signal equivalent to temperature of the power storing unit, a first control signal for adjusting a ripple component of the output current to be capable of raising the temperature of the power storing unit and a second control signal for adjusting a non-ripple component of the output current; and a PWM-pulse generating unit configured to generate the ON/OFF signal based on the first control signal and the second control signal and outputting the ON/OFF signal to the switching circuit. - View Dependent Claims (2, 5, 6, 9, 11, 13, 14, 15, 17)
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18. A charging and discharging device comprising:
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a switching circuit, an input of which is connected to a power supply, the switching circuit adjusting an output current to a power storing unit connected to an output of the switching circuit; and a control unit configured to generate an ON/OFF signal to the switching circuit, wherein the control unit includes; a temperature-rise control unit configured to separately generate, based on at least a signal equivalent to temperature of the power storing unit, a first control signal for controlling a time varying component of the output current to be capable of raising the temperature of the power storing unit and a second control signal for adjusting a non-time varying component of the output current; and a PWM-pulse generating unit configured to generate the ON/OFF signal based on the first control signal and the second control signal and outputting the ON/OFF signal to the switching circuit. - View Dependent Claims (19, 21, 22, 25, 27, 29, 30, 32)
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33. A charging and discharging device mounted on an electric vehicle, the charging and discharging device comprising:
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a switching circuit, an input of which is connected to a power supply, the switching circuit adjusting an output current to a power storing unit connected to an output of the switching circuit; and a control unit configured to generate an ON/OFF signal to the switching circuit, wherein the control unit includes a temperature-rise control unit configured to generate, based on a signal equivalent to temperature of the power storing unit and a signal equivalent to speed of the electric vehicle, a control signal for adjusting a ripple component of the output current or a control signal for adjusting a time varying component of the output current, the control unit generating the ON/OFF signal based on the control signal and outputting the ON/OFF signal to the switching circuit.
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34. (canceled)
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36. A charging and discharging device comprising:
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a switching circuit, an input of which is connected to a power supply, the switching circuit adjusting an output current to a power storing unit connected to an output of the switching circuit; and a control unit configured to generate an ON/OFF signal to the switching circuit, the control unit including a temperature-rise control unit configured to output, based on a signal equivalent to temperature of the power storing unit, a control signal for controlling the temperature of the power storing unit, and the control unit generating the ON/OFF signal based on the control signal and outputting the ON/OFF signal to the switching circuit, wherein the power storing unit includes a plurality of banks formed by combining an arbitrary plurality of the power storage elements, opening and closing units capable of connecting and disconnecting the switching circuit are set between the respective banks and the switching circuit, and the control unit includes a temperature-rise selecting unit configured to output, to the opening and closing units, a selection control signal for connecting a predetermined one of the banks to the switching circuit and enabling temperature-rise control.
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37. (canceled)
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39. (canceled)
Specification