CAR POWER SOURCE APPARATUS AND VEHICLE EQUIPPED WITH THE POWER SOURCE APPARATUS
First Claim
1. A car power source apparatus comprising:
- a driving battery with a plurality of batteries connected in series to supply power to the vehicle driving motor;
battery-switches that connect the driving battery to the vehicle-side load;
a control circuit that controls the battery-switches; and
an auxiliary battery that supplies operating power to the control circuit power supply line,wherein a supplementary power supply circuit is provided to supply operating power to the control circuit power supply line from a segment of the batteries that make up the driving battery and maintain control circuit operation if supply voltage drops in the auxiliary battery power supplied to the control circuit power supply line,wherein the supplementary power supply circuit supplies operating power to the control circuit power supply line at the control circuit operating voltage from one segment of the series-connected batteries that make up the driving battery, and in an auxiliary battery voltage drop condition, control circuit operation is maintained to maintain control of the battery-switches.
1 Assignment
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Accused Products
Abstract
The car power source apparatus is provided with a driving battery having a plurality of connected batteries, battery-switches that connect the driving battery to the vehicle-side load, a control circuit that controls the battery-switches, and an auxiliary battery that supplies operating power to the control circuit power supply line. The power source apparatus is provided with a supplementary power supply circuit that supplies operating power to the control circuit power supply line from batteries in the driving battery to maintain control circuit operation in the event of an auxiliary battery voltage drop condition. In an auxiliary battery voltage drop condition, the supplementary power supply circuit supplies operating power to the control circuit power supply line and maintains control circuit operation to maintain control of the battery-switches.
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Citations
9 Claims
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1. A car power source apparatus comprising:
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a driving battery with a plurality of batteries connected in series to supply power to the vehicle driving motor; battery-switches that connect the driving battery to the vehicle-side load; a control circuit that controls the battery-switches; and an auxiliary battery that supplies operating power to the control circuit power supply line, wherein a supplementary power supply circuit is provided to supply operating power to the control circuit power supply line from a segment of the batteries that make up the driving battery and maintain control circuit operation if supply voltage drops in the auxiliary battery power supplied to the control circuit power supply line, wherein the supplementary power supply circuit supplies operating power to the control circuit power supply line at the control circuit operating voltage from one segment of the series-connected batteries that make up the driving battery, and in an auxiliary battery voltage drop condition, control circuit operation is maintained to maintain control of the battery-switches. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
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Specification