This course introduces the basic components of new energy vehicles. New energy vehicles are composed of three main parts: power supply system, electric drive system, and auxiliary system. The power system includes a power supply, an energy management system, and a charger; The electric drive system includes an electronic controller, an electric motor, a mechanical transmission device, a power converter, and wheels; The auxiliary system includes auxiliary power source, power steering system, air conditioner, lighting and defrosting device, navigation system, radio, etc. New energy vehicles refer to the use of unconventional vehicle fuels to provide power sources for vehicles, or the combination of conventional vehicle fuels with new onboard power devices, to produce vehicles with new technologies and structures based on the vehicle's power control and advanced driving aspects.