Power Supply Device for Vehicle and Method of Controlling the Same
First Claim
1. A power supply device for a vehicle, comprising:
- a first power storage device;
a second power storage device;
a vehicle load which includes at least a first inverter driving a first rotating electric machine;
a selection switch which selects one of said first and second power storage devices and connects the selected power storage device to said vehicle load; and
a control device which makes a current flowing through said selection switch smaller than a prescribed value by using said first inverter to control electric power generated in said first rotating electric machine and switches said selection switch, when the current flowing through said selection switch is larger than said prescribed value.
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Accused Products
Abstract
A power supply device for a vehicle includes a battery (B1) which serves as a first power storage device, a battery (B2) which serves as a second power storage device, a vehicle load, a selection switch (RY0) which selects one of the first and second power storage devices and connects the selected power storage device to the vehicle load, and a control device (60) which, when a current flowing through the selection switch (RY0) is larger than a prescribed value, controls the vehicle load so that the current flowing through the selection switch (RY0) is made smaller than the prescribed value, and switches the selection switch. Preferably, when the control device (60) switches the selection switch (RY0), the control device controls inverters (20, 30) to achieve a balance between electric power generated in a first motor generator (MG2) and electric power consumed in a second motor generator (MG1).
47 Citations
19 Claims
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1. A power supply device for a vehicle, comprising:
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a first power storage device; a second power storage device; a vehicle load which includes at least a first inverter driving a first rotating electric machine; a selection switch which selects one of said first and second power storage devices and connects the selected power storage device to said vehicle load; and a control device which makes a current flowing through said selection switch smaller than a prescribed value by using said first inverter to control electric power generated in said first rotating electric machine and switches said selection switch, when the current flowing through said selection switch is larger than said prescribed value. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11)
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12. A method of controlling a power supply device for a vehicle, the power supply device for the vehicle having a first power storage device, a second power storage device, a vehicle load which includes at least a first inverter driving a first rotating electric machine, and a selection switch which selects one of said first and second power storage devices and connects the selected power storage device to said vehicle load, said method comprising:
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the step of making a current flowing through said selection switch smaller than a prescribed value by using said first inverter to control electric power generated in said first rotating electric machine, when the current flowing through said selection switch is larger than said prescribed value; and the step of switching said selection switch after making the current flowing through said selection switch smaller than said prescribed value. - View Dependent Claims (13, 14, 15, 16, 17, 18, 19)
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Specification