1, No pollution, low noise: electric vehicles without internal combustion engine car work exhaust gas, does not produce exhaust pollution, environmental protection and air cleanliness is very beneficial, almost "zero pollution".
As we all know, CO, HC and NOX, particulates, odor and other pollutants in the exhaust gas of internal combustion engine vehicles form acid rain acid fog and photochemical smog. Electric vehicles have no noise produced by internal combustion engines, and the noise of electric motors is less than that of internal combustion engines. Noise is also harmful to human hearing, nervous, cardiovascular, digestive, endocrine, and immune systems.
2, A single electric energy: compared with hybrid electric vehicles and fuel cell vehicles, pure electric vehicles replace the fuel engine with an electric motor, low noise, no pollution, less space and weight of the motor, oil and transmission system can be used to compensate for the needs of the battery; And because of the use of a single electrical energy source, the electronic control system is greatly simplified compared with hybrid electric vehicles, reducing the cost, and can also compensate for part of the price of the battery.
3, Simple structure, easy maintenance: electric vehicles than internal combustion engine vehicles simple structure, fewer running, transmission parts, maintenance workload is small. When the AC induction motor is used, the motor does not need maintenance, and more importantly, the electric vehicle is easy to manipulate
4, High energy conversion efficiency: at the same time can recover braking, downhill energy, improve energy utilization efficiency;
Studies of electric vehicles have shown that their energy efficiency has surpassed that of gasoline engines. Especially in the city operation, the car stop-and-go, driving speed is not high, electric vehicles are more suitable. Electric vehicles do not consume power when they stop, and during the braking process, the motor can be automatically converted into a generator to realize the reuse of energy during braking deceleration. Some studies have shown that the same crude oil is refined, sent to a power plant to generate electricity, charged into a battery, and then driven by a battery car, its energy efficiency is higher than after refining into gasoline, and then driven by a gasoline engine, so it is conducive to saving energy and reducing carbon dioxide emissions.
5, Smooth the peak-valley difference of the power grid: The cheap "valley electricity" of the power grid can be charged at night, which plays the role of smooth the peak-valley difference of the power grid.
The application of electric vehicles can effectively reduce the dependence on oil resources, which can be used for more important aspects of limited oil. The electricity charged to the battery can be converted from coal, natural gas, hydro, nuclear, solar, wind, tidal and other energy sources. In addition, if the battery is charged at night, it can also avoid the peak of electricity consumption, which is conducive to the power grid balance load and reduce costs.