Types Of New Energy Vehicles 2
Gasoline and diesel are the energy sources of traditional internal combustion engine vehicles, and vehicles powered by other energy sources can be called new energy vehicles. So far, alternative fuels such as formic acid, ethanol, hydrogen, compressed natural gas and liquefied petroleum gas have been introduced in the world, as well as new energy vehicles such as electric and hybrid vehicles.
(1) Electric vehicles
Electric vehicles generally refer to pure electric vehicles, which are different from hybrid vehicles. Electric vehicles are broadly classified into battery electric vehicles and fuel cell electric vehicles. What they all have in common is that they are driven entirely by electric motors, enabling true zero emissions. The technical key of an electric vehicle is a high-energy and large-capacity battery. Although several high-energy storage batteries have been researched in the world, they have technically met the requirements of electric vehicles. They have matured in terms of power and mileage on a single charge, but their cost of use is higher than that of gasoline. More than 30%. Because it must be charged frequently, it needs to rely on the construction of fast charging stations. Since the battery occupies a certain volume and mass, the effective specific load is small.
(2) Hybrid vehicles
The hybrid power device is to make the traditional engine as small as possible, so that part of the power is borne by the battery-motor system, which not only takes advantage of the engine's long continuous working time and good power performance, but also takes advantage of the advantages of the motor's pollution-free and low noise. A hybrid vehicle uses a traditional internal combustion engine and an electric motor as a power source, and uses two sets of devices, manpower and electricity, to drive the vehicle to save fuel and reduce emission pollution. Practical internal combustion engines include both diesel engines and gasoline engines, but the common characteristics are small displacement, light weight, fast speed and good emissions. The electric system includes highly efficient electric motors, generators and batteries. According to the synthesis of energy, hybrid electric vehicles are mainly divided into two types: series type and parallel type. Compared with pure electric vehicles, hybrid electric vehicles reduce the requirements for battery energy density and capacity, reduce the quality of the battery part, and help improve the quality utilization factor of the vehicle; power performance, driving range and passenger comfort are all improved. Guaranteed; no need to add charging facilities, easy to promote and apply. Compared with traditional cars, the motor is often in the best working condition, which reduces emissions; energy is automatically recovered, which improves energy utilization; the use of pure electric driving mode can achieve zero emissions in specific areas.
