Patent ID: 11919421
Assignee: LG ENERGY SOLUTION, LTD.
Field: Electrical machinery, apparatus, energy (Electrical engineering)
Classification: CPC B  H  G  Y | IPC B  H

Claim 0:
1. A heating pad control apparatus connected to a battery pack, the heating pad control apparatus comprising:
a sensor configured to measure a temperature of the battery pack and output a measured temperature signal corresponding to the measured temperature of the battery pack;
a processor configured to output a reference temperature signal corresponding to a preset reference temperature; and
a heating control circuit configured to receive both-end voltages of a main relay disposed between a positive electrode terminal of a battery module of the battery pack and a positive electrode terminal of the battery pack on a main charging and discharging line, receive the measured temperature signal from the sensor, receive the reference temperature signal from the processor, and output a control signal for controlling a heating relay, wherein the heating relay is disposed on a heating line to generate heat on the main charging and discharging line when a current flows in the heating line, wherein the heating relay is controllable to cause the current to flow in the heating line, and wherein the control signal output by the heating control circuit is based on the both-end voltages of the main relay, the measured temperature signal and the reference temperature signal to control operation of a heating pad disposed on the heating line.