US Patent 9583801 Battery temperature regulating system

A temperature regulating system for regulating the temperature of a battery in a vehicle. The system regulates airflow to the battery for cooling or warming the battery based on the speed of the vehicle and the temperature of the battery. The system provides active cooling airflow to the battery when the battery temperature is above a recommended temperature range, or when the battery temperature is within the recommended temperature range and the speed of the motor vehicle is below a speed threshold. The system provides passive cooling airflow when the battery temperature is within the recommended temperature range and the speed of the motor vehicle is above a speed threshold. The system provides active warming airflow when the battery temperature is below the recommended temperature range.