Automobile and power supply system therefor
First Claim
1. A power-supply unit for an automobile comprising:
- a battery having a high-voltage terminal and a low-voltage terminal;
a converter for converting AC power into DC power;
a first switching element for controlling the power supply in one direction from the high-voltage terminal of the battery to the converter; and
a second switching element for controlling the power supply in one direction from the converter to the low-voltage terminal of the battery.
1 Assignment
0 Petitions
Accused Products
Abstract
In an automobile power supply where plural voltages can be supplied, a plurality of batteries and a DC/DC converter are assumed to be unnecessary, and it is possible to operate even when the controller breaks down.
High-voltage terminal 11 and low-voltage terminal 12 are provided in battery 6. High-voltage FET 4 for controlling the power supply in one direction from high-voltage terminal 11 to inverter 3 is connected between inverter 3 and high-voltage terminal 11. Low-voltage FET 5 for controlling the power supply in one direction from inverter 3 to low-voltage terminal 12 between inverter 3 and low-voltage terminal 12 is connected.
36 Citations
10 Claims
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1. A power-supply unit for an automobile comprising:
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a battery having a high-voltage terminal and a low-voltage terminal;
a converter for converting AC power into DC power;
a first switching element for controlling the power supply in one direction from the high-voltage terminal of the battery to the converter; and
a second switching element for controlling the power supply in one direction from the converter to the low-voltage terminal of the battery. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 10)
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9. An automobile including:
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a motor/generator;
an inverter for driving said motor/generator;
a battery connected to said inverter through the terminals at a plurality of different voltages;
a first switching element provided between said inverter and a first fixed terminal of the terminals at a plurality of different voltages of said battery;
a first rectifying device connected in parallel with the intermittence-switching means provided in said first switching element, for throwing more electric currents in the direction of said first terminal from said inverter;
a second switching element provided between said inverter and a second terminal at a voltage lower than that of said the first terminal of the terminals of a plurality of different voltages of said battery;
a second rectifying device connected in parallel with the intermittence-switching means provided in said second switching element, for throwing more electric currents in the direction of said second terminal from said inverter; and
a battery control unit for turning on/off said first and said second switching element according to the state of the charge of said battery.
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Specification