What is a primary function of the differential in a vehicle?

The primary function of the differential in a vehicle is to allow for differences in wheel speed while turning. When a vehicle navigates a turn, the wheels on the outside of the turn travel a greater distance than the wheels on the inside. The differential enables the wheels to rotate at different speeds, which helps maintain traction and stability. This functionality is crucial for smooth handling during turns, reducing tire wear, and ensuring safer driving, especially in tight or sharp turns.

In contrast, the other options do not pertain to the role of the differential. Increasing engine power relates to the engine's performance components, charging the battery involves the electrical system, and controlling vehicle temperature is typically managed by the cooling system and the vehicle's HVAC (Heating, Ventilation, and Air Conditioning) system. Therefore, only the function of accommodating differences in wheel speed during turns accurately describes the role of the differential.