What Fuel Do New Energy Vehicles Use?
1 Answers
New energy vehicles refer to vehicles that use unconventional energy sources such as electricity and hydrogen fuel as their power sources. Traditional fuel vehicles use petroleum, which is a non-renewable resource, and the exhaust emissions from fuel vehicles pose significant environmental hazards. The development of new energy vehicles has now become a trend. Below is a classification of new energy vehicle fuels: 1. Battery Electric Vehicles (BEVs): A BEV is a vehicle that uses a single battery as its energy storage power source. It utilizes the battery to store energy and provides electricity to the motor, which drives the vehicle. 2. Hybrid Electric Vehicles (HEVs): HEVs are vehicles whose propulsion systems consist of two or more individual drive systems that can operate simultaneously. The driving power of the vehicle is provided by one or more of these drive systems, depending on the actual driving conditions. HEVs come in various forms due to differences in components, layout, and control strategies. 3. Fuel Cell Electric Vehicles (FCEVs): FCEVs use electricity generated by electrochemical reactions between hydrogen and oxygen from the air in the presence of a catalyst in a fuel cell as their primary power source. Essentially, FCEVs are a type of BEV, with the main difference lying in the working principle of the power battery. Typically, fuel cells convert chemical energy into electrical energy through electrochemical reactions, with hydrogen as the reducing agent and oxygen as the oxidizing agent. Therefore, the earliest FCEVs mostly used hydrogen fuel directly, with hydrogen stored in forms such as liquid hydrogen, compressed hydrogen, or metal hydrides. 4. Hydrogen Engine Vehicles: These vehicles use a hydrogen engine as their power source. While conventional engines use diesel or gasoline, hydrogen engines use gaseous hydrogen. Hydrogen engine vehicles are truly zero-emission vehicles, emitting only pure water, and they offer advantages such as no pollution, zero emissions, and abundant resources. 5. Other New Energy Vehicles: These include vehicles that use supercapacitors, flywheels, and other high-efficiency energy storage devices. Currently, in China, new energy vehicles mainly refer to BEVs, extended-range electric vehicles, plug-in hybrid electric vehicles, and FCEVs, while conventional hybrid vehicles are classified as energy-saving vehicles.