POWER SUPPLY SYSTEM, VEHICLE PROVIDED WITH THE SAME, POWER SUPPLY SYSTEM CONTROL METHOD AND COMPUTER-READABLE RECORDING MEDIUM BEARING PROGRAM FOR CAUSING COMPUTER TO CONTROL THE POWER SUPPLY SYSTEM
First Claim
Patent Images
1. A power supply system provided with a plurality of power storage devices, comprising:
- a first voltage converting device arranged between a first power storage device and a load device for converting a voltage provided from said first power storage device and providing the converted voltage to said load device;
a second voltage converting device arranged between a second power storage device and said load device for converting a voltage provided from said second power storage device and providing the converted voltage to said load device; and
a control unit controlling said first and second voltage converting devices such that one of said first and second voltage converting devices operates and the other voltage converting device stops when a required power required of the power supply system is smaller than a reference value, and controlling said first and second voltage converting devices such that both of said first and second voltage converting devices operate when said required power is equal to or larger than said reference value.
1 Assignment
0 Petitions
Accused Products
Abstract
First and second converters are connected in parallel to positive and negative lines, respectively. When a required power is smaller than a reference value, an ECU controls the first and second converters such that one of the first and second converters operates and the other stops. When the required power is equal to or larger than the reference value, the ECU controls the first and second converters such that both the first and second converters operate.
-
Citations
15 Claims
-
1. A power supply system provided with a plurality of power storage devices, comprising:
-
a first voltage converting device arranged between a first power storage device and a load device for converting a voltage provided from said first power storage device and providing the converted voltage to said load device; a second voltage converting device arranged between a second power storage device and said load device for converting a voltage provided from said second power storage device and providing the converted voltage to said load device; and a control unit controlling said first and second voltage converting devices such that one of said first and second voltage converting devices operates and the other voltage converting device stops when a required power required of the power supply system is smaller than a reference value, and controlling said first and second voltage converting devices such that both of said first and second voltage converting devices operate when said required power is equal to or larger than said reference value. - View Dependent Claims (2, 3, 4, 5, 6, 7)
-
-
8. A vehicle comprising:
-
a plurality of power storage devices; a power supply system; a drive device supplied with an electric power from said power supply system; an electric motor driven by said drive device; and a wheel driven by said electric motor, wherein said power supply system includes; a first voltage converting device arranged between a first power storage device and said drive device for converting a voltage provided from said first power storage device and providing the converted voltage to said drive device; a second voltage converting device arranged between a second power storage device and said drive device for converting a voltage provided from said second power storage device and providing the converted voltage to said drive device; and a control unit controlling said first and second voltage converting devices such that one of said first and second voltage converting devices operates and the other voltage converting device stops when a required power required of said power supply system is smaller than a reference value, and controlling said first and second voltage converting devices such that both of said first and second voltage converting devices operate when said required power is equal to or larger than said reference value.
-
-
9. A method of controlling a power supply system provided with a plurality of power storage devices, wherein
said power supply system includes: -
a first voltage converting device arranged between a first power storage device and a load device for converting a voltage provided from said first power storage device and providing the converted voltage to said load device; and a second voltage converting device arranged between a second power storage device and said load device for converting a voltage provided from said second power storage device and providing the converted voltage to said load device, and said control method comprises; a first step of comparing a required power required of said power supply system with a reference value; a second step of controlling said first and second voltage converting devices such that one of said first and second voltage converting devices operates and the other voltage converting device stops, when said required power is smaller than the reference value; and a third step of controlling said first and second voltage converting devices such that both of said first and second voltage converting devices operate, when said required power is equal to or larger than said reference value. - View Dependent Claims (10, 11, 12, 13, 14)
-
-
15. A computer-readable recording medium storing a program for causing a computer to control a. power supply system provided with a plurality of power storage devices, wherein
said power supply system includes: -
a first voltage converting device arranged between a first power storage device and a load device for converting a voltage provided from said first power storage device and providing the converted voltage to said load device; and a second voltage converting device arranged between a second power storage device and said load device for converting a voltage provided from said second power storage device and providing the converted voltage to said load device, and said recording medium stores the program for causing said computer to execute; a first step of comparing a required power required of said power supply system with a reference value; a second step of controlling said first and second voltage converting devices such that one of said first and second voltage converting devices operates and the other voltage converting device stops, when said required power is smaller than the reference value; and a third step of controlling said first and second voltage converting devices such that both of said first and second voltage converting devices operate, when said required power is equal to or larger than said reference value.
-
Specification