Power control apparatus for vehicle

A power control apparatus for a vehicle comprising:

• a battery that supplies power to a drive unit of a vehicle;
• a temperature sensor that detects temperature of the battery;
• a current sensor that detects electrical current of the battery;
• a voltage sensor that detects voltage of the battery;
• a contactor that cuts off a flow of electrical current from the battery and a flow of electrical current to the battery and
• a controller that, when a temperature detection function of the temperature sensor has been lost, calculates a value of the power of the battery based on a detection result of the electrical current by the current sensor and a detection result of the voltage by the voltage sensor, and operates the contactor when a calculated value of the power exceeds a predetermined value for a predetermined period of time to cut off flow of the electrical current from the battery and the flow of electrical current to the battery,
• wherein the battery is cooled, and wherein the predetermined value and the predetermined period of time are set based on a heat generation characteristic of the battery and a cooling characteristic of a water cooling mechanism.