Method for controlling power supply and vehicle in which control of power supply is performed by the method

A method for controlling power supply, the method comprising:

• detecting, by a processor of a vehicle, a crash by a sensor of the vehicle;
• determining by the processor, whether power supplied from a high-voltage battery of the vehicle and power supplied from a low-voltage battery of the vehicle are interrupted based on detecting the crash;
• controlling, by the processor, an auxiliary battery of the vehicle to supply the power to an airbag control unit (ACU) and a central communication unit (CCU) of the vehicle based on determining that the power supplied from the high-voltage battery and the power supplied from the low-voltage battery are interrupted;
• outputting, by the ACU, a crash signal to the CCU and to a data connectivity unit (DCU) of the vehicle;
• receiving, by the ACU, an emergency call (eCall) signal triggered from the DCU based on the crash signal;
• and
• recording, by the ACU, an eCall status in an event data recorder (EDR).

A vehicle comprising:

• a computing device including a processor and a storage medium;
• a high-voltage battery, a low-voltage battery, and an auxiliary battery configured for supplying power;
• an airbag control unit (ACU);
• and
• a central communication unit (CCU),
• wherein the processor is configured for:
• detecting a crash of the vehicle;
• and
• controlling the auxiliary battery to supply the power to the ACU and the CCU based on detecting the crash.