EV Bronco Thermal Management in Cold Weather Testing

The EV Bronco's thermal management system, tested in Lake Tahoe’s freezing conditions, uses a 50-50 ethylene glycol and water mix for both heating and cooling. In cold weather, this fluid is heated by a high-voltage electric heater and circulated through chill plates, maintaining uniform battery temperatures within 5°C and keeping them above the derating threshold. The same fluid and heater also heat the cabin, ensuring consistent performance and effective temperature control for both battery and cabin in extreme cold.