Apparatus and method for controlling cooling of battery of environment-friendly vehicle

A method of controlling cooling of a battery of an environment-friendly vehicle, the method comprising:

• transmitting, a controller area network (CAN) communication, a cooling fan motor control condition from a battery management system (BMS) to the cooling fan motor controller;
• controlling, by a speed controller of the cooling fan motor controller, a rotation speed of a cooling fan motor according to the cooling fan motor control condition;
• operating, by a motor driving controller of the cooling fan motor controller, according to the cooling fan motor control condition;
• and
• when the CAN communication line is abnormal, transmitting the cooling fan motor control condition to the speed controller and the motor driving controller as a backup signal from the backup controller, and performing a temporary backup control of the speed controller and the motor driving controller for the cooling fan motor.

A vehicle operable in at least an HEV (Hybrid Electric Vehicle) mode and an EV (Electric Vehicle) mode, comprising:

• a cooling fan motor controller configured to control a speed and operation of a cooling fan motor while transmitting and receiving a cooling fan motor control condition from a battery management system (BMS),
• wherein the cooling fan motor controller includes:
• a controller area network (CAN) communication adaptor configured to transmit and receive a cooling fan control condition from the BMS;
• a speed controller configured to control a rotation speed of the cooling fan motor according to the cooling fan control condition;
• a motor driving controller configured to operate the cooling fan motor according to a speed signal from the speed controller;
• and
• a backup controller configured to receive backup power when a CAN communication is abnormal, and temporarily control the speed controller and the motor driving controller through a backup signal.