Patent ID: 11921165
Assignee: SK ON CO., LTD.
Field: Electrical machinery, apparatus, energy (Electrical engineering)
Classification: CPC G  H  Y | IPC G  H

Claim 0:
1. A method for calculating characteristics of a battery by using an apparatus for calculating characteristics of a battery, which apparatus includes a positive electrode connector coupled to a positive electrode terminal of the battery, a negative electrode connector coupled to a negative electrode terminal of the battery, a ground connector coupled to a case of the battery, a first switch, a first ADC, a second switch, a second ADC, a third switch, a first resistor, a second resistor, a third resistor, a fourth resistor, a fifth resistor, a sixth resistor, and a control unit, the method comprising:
based on the first resistor having one end coupled to the positive electrode connector, and the second resistor having one end coupled to the negative electrode connector, controlling, by the control unit, only the first switch having one end coupled to the other end of the first resistor and the other end coupled to the other end of the second resistor to be turned on;
obtaining, by the control unit, a value output from the first ADC in a state in which only the first switch is turned on;
calculating, by the control unit, a voltage of the battery based on the value output from the first ADC and a resistance value of the first and second resistors in the state in which only the first switch is turned on;
based on the third resistor having one end coupled to the positive electrode connector and one end of the first resistor, and the fourth resistor having one end coupled to the ground connector, controlling, by the control unit, only the second switch having one end coupled to the other end of the third resistor and the other end coupled to the other end of the fourth resistor to be turned on;
obtaining, by the control unit, a value output from the second ADC in a state in which only the second switch is turned on;
based on the fifth resistor having one end coupled to the negative electrode connector and one end of the second resistor, and the sixth resistor having one end coupled to the ground connector and one end of the fourth resistor, controlling, by the control unit, only the third switch having one end coupled to the other end of the fifth resistor and the other end coupled to the other end of the sixth resistor to be turned on;
obtaining, by the control unit, a value output from the second ADC in a state in which only the third switch is turned on; and
calculating, by the control unit, insulation resistances of the battery by using the voltage of the battery calculated, the value output from the second ADC in the state in which only the second switch is turned on, and the value output from the second ADC in the state in which only the third switch is turned on.