DETERIORATION DETERMINATION DEVICE FOR VEHICLE-DRIVING BATTERY
First Claim
1. A deterioration determination device for a vehicle-driving battery mounted in a vehicle comprising:
- a current detection unit that detects a current value of the battery;
a voltage detection unit that detects a voltage value of the battery; and
a calculation unit that calculates at predetermined time intervals a resistance value of the battery based on current values detected by the current detection unit and voltage values detected by the voltage detection unit during running of the vehicle, calculates a calculation accuracy of the calculated resistance value, and determines deterioration state of the battery based on the resistance value when the calculation accuracy is higher than a preset calculation accuracy.
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Accused Products
Abstract
A deterioration determination device for a vehicle-driving battery mounted in a vehicle includes a current detection unit that detects a current value of the battery, a voltage detection unit that detects a voltage value of the battery, and a calculation unit that calculates at predetermined time intervals a resistance value of the battery based on current values detected by the current detection unit and voltage values detected by the voltage detection unit during running of the vehicle, calculates a calculation accuracy of the calculated resistance value, and determines deterioration state of the battery based on the resistance value when the calculation accuracy is higher than a preset calculation accuracy.
20 Citations
8 Claims
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1. A deterioration determination device for a vehicle-driving battery mounted in a vehicle comprising:
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a current detection unit that detects a current value of the battery; a voltage detection unit that detects a voltage value of the battery; and a calculation unit that calculates at predetermined time intervals a resistance value of the battery based on current values detected by the current detection unit and voltage values detected by the voltage detection unit during running of the vehicle, calculates a calculation accuracy of the calculated resistance value, and determines deterioration state of the battery based on the resistance value when the calculation accuracy is higher than a preset calculation accuracy. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
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Specification