Battery Cooling Control: Control
WARNING: This page is about a different car, the 2016 Infiniti Q50. However, it is still accessible from the selected car via links, so may be relevant.
The Li-ion battery controller receives the signals from the sensors and control unit, and determines the target airflow. Based on this target airflow, the Li-ion battery controller changes the duty value of the cooling fan drive signal, allowing stepless control of the airflow.
The target fan speed is determined by calculating the vehicle noise state according to the output shaft revolution signal, total power signal, and A/C blower fan speed, based on the temperature signals from the battery temperature sensors, intake temperature sensor, and DC/DC converter.