Battery apparatus, battery management system, and method of diagnosing supply voltage of contactor
AssigneeLG Energy Solution, Ltd.
InventorSookwon Kim
Life of this patent
Estimating the term…
Abstract
A plurality of driving circuits drive a plurality of contactors for connecting the battery pack and an external apparatus, respectively, based on a supply voltage. A processing circuitry control the plurality of driving circuits to sequentially close the plurality of contactors in a predetermined order, and check the supply voltage before closing each of the contactors.
Claims17
A battery apparatus, comprising:
- a battery pack;
- a plurality of contactors configured to connect the battery pack and an external apparatus;
- a plurality of driving circuits configured to drive the plurality of contactors based on a supply voltage, respectively;
- and
- a processing circuitry configured to control the plurality of driving circuits to sequentially close the plurality of contactors in a predetermined order, and check the supply voltage before closing each of the plurality of contactors.
A method of diagnosing a supply voltage configured to drive a plurality of contactors including a first contactor and a second contactor configured to connect a battery pack and an external apparatus, the method comprising:
- checking the supply voltage before closing the first contactor;
- comparing the supply voltage checked before closing the first contactor with a predetermined voltage;
- closing the first contactor in response to the supply voltage checked before closing the first contactor being equal to or higher than the predetermined voltage;
- checking the supply voltage before closing the second contactor;
- comparing the supply voltage checked before closing the second contactor with the predetermined voltage;
- and
- closing the second contactor in response to the supply voltage checked before closing the second contactor being equal to or higher than the predetermined voltage.
A battery management system configured to control a plurality of contactors including a first contactor and a second contactor configured to connect a battery pack and an external apparatus, the battery management system comprising:
- a first driving circuit configured to drive the first contactor based on a supply voltage;
- a second driving circuit configured to drive the second contactor based on the supply voltage;
- and
- a processing circuitry configured to:
- check the supply voltage before closing the first contactor;
- control the first driving circuit to close the first contactor in response to the supply voltage checked before closing the first contactor being equal to or higher than a predetermined voltage;
- check the supply voltage before closing the second contactor;
- and
- control the second driving circuit to close the second contactor in response to the supply voltage checked before closing the second contactor being equal to or higher than the predetermined voltage.
Dependencies are inferred from the claim text.