Ford unveils temperature control system

While air-cooling methods work well for many of today’s smaller car battery systems, the larger, more complex lithium-ion battery technology powering Ford’s all-electric vehicles calls for a more aggressive thermal management system.

As such, the active liquid system will heat or chill a coolant before pumping it through the battery cooling system to regulate temperature throughout the system.

On hot days, chilled water will absorb heat from the batteries, dispersing it through a radiator before pumping it through the chiller again. On cold days, heated water will warm the batteries, gradually bringing the system’s temperature to a level that allows it to efficiently accept charge and provide enough power to meet the performance needs of the vehicle.

The liquid cooling system will also play a role in charging the vehicle. When the all-electric Focus is plugged in to recharge, the vehicle control system will automatically precondition the battery, if needed, to the optimal temperature before accepting charge. If the battery is already at the optimal temperature, the system will automatically accept charge and maintain an optimal temperature.