Which automotive system is primarily responsible for the vehicle's power generation?

The electrical system is primarily responsible for the vehicle's power generation because it encompasses the components that generate and distribute electrical energy necessary for the operation of various vehicle systems. The heart of this system is the alternator, which converts mechanical energy from the engine into electrical energy, charging the battery and powering electrical components like lights, infotainment systems, and sensors while the vehicle is running.

Other systems, while essential to vehicle operation, do not generate power. The suspension system primarily manages ride quality and handling by supporting the vehicle's weight and absorbing shocks. The exhaust system handles the expulsion of gases from the engine, contributing to emissions control and engine efficiency without generating power. Lastly, the braking system functions to slow down or stop the vehicle and does not contribute to the vehicle's power generation.