Vehicle, electronic control unit, and method of controlling electronic control unit

A method of controlling an electronic control unit (ECU), comprising:

• measuring a coil current flowing into a coil part and a coil voltage supplied to the coil part;
• supplying the coil current on the basis of a switching signal;
• and
• calculating a temperature of the coil part using the switching signal, the coil voltage, and the coil current.

A vehicle comprising:

• a coil part to which a constant voltage is supplied;
• a sensor configured to measure a coil current flowing into the coil part and a coil voltage supplied to the coil part;
• a switching part configured to receive a switching signal and supply the coil current on the basis of the switching signal;
• and
• a controller configured to input the switching signal to the switching part and calculate a temperature of the coil part using the switching signal, the coil voltage, and the coil current,
• wherein the controller calculates a resistance of the coil part on the basis of the coil voltage and the coil current and calculates the temperature of the coil part using the resistance of the coil part.