Pure electric vehicles refer to vehicles that use the vehicle power supply as the power and use the motor to drive the wheels, which meet the requirements of road traffic and safety regulations.Lithium -ion battery) provides a power source car.Although it has a long history of 186 years, it has been limited to applications within certain range, and the market is small.The main reason is that due to various types of batteries, there are generally high prices, short life, large appearance size and weight, long charging time, etc.
What are the categories of pure electric vehicles
There are many types of pure electric vehicles, and they are classified according to vehicle use, number of vehicle power supply, and the composition of the driving system.According to different uses, pure electric cars can be divided into three types: electric cars, electric trucks and electric bus.
(1) Electric car is the most common pure electric car.In addition to some concept cars, pure electric cars have already produced small batches and have entered the automotive market.
Pure electric vehicle
(2) There are fewer electric trucks used by electric trucks as power transportation, and in mines, construction sites and some special venues, there have been large tonnage pure electric cargo vehicles.
(3) Electric passenger cars, pure electric passenger cars are also rare; pure electric passenger cars are used as buses, and they have performed well at the bus lines of some cities, as well as the World Expo and World Games.
Pure electric vehicle advantages introduction
No pollution, small noise
The exhaust gas generated by electric vehicles without internal combustion engines does not produce exhaust pollution, which is very beneficial for environmental protection and air cleaning, and is almost "zero pollution."As we all know, pollutants and other pollutants such as CO, HC and NOX, particles, and odor in the exhaust gas of the internal combustion engine form a acid rain and sour fog and photochemical smoke.The noise produced by electric vehicles without internal combustion engines, and the noise of the motor is smaller than the internal combustion engine.Noise is also harmful to human hearing, nerves, cardiovascular, digestion, endocrine, and immune system.
Single electrical energy
Compared to hybrid vehicles and fuel cell vehicles, pure electric vehicles replace fuel engines with electric motors, low noise, non -polluting, and less space and weight of motor, oil and transmission systems can be used to compensate for battery requirements; and because a single electricity uses a single electricityCompared with the mixed electric vehicles of energy, the energy control system is greatly simplified, reducing costs, and can also compensate some of the battery price.
Simple structure and convenient maintenance
Electric vehicles have simple structures than internal combustion engines, less operations, less transmission parts, and small maintenance workload.When using an AC influenza motor, the motor does not need to be maintained. More importantly, electric vehicles are easy to control
High energy conversion efficiency
At the same time, the energy of recycling and braking and downhill, improve the efficiency of energy utilization;
Electric vehicles have shown that their energy efficiency has exceeded gasoline engines.Especially in cities, the car stops and stops, the driving speed is not high, and electric vehicles are more suitable.Electric vehicles do not consume power when stopping. During the braking process, the motor can be automatically converted into a generator to achieve reuse of energy during braking deceleration.Some studies have shown that the same crude oil has been refined and sent to power plants to generate electricity. It is charged into the battery and then driven by the battery.And reduce the displacement of carbon dioxide.
Peak Valley of Pingzi Grid
At night, the cheap "valley power" of the grid can be used to charge, and it plays a role in flatting the peak and valley of the grid.
The application of electric vehicles can effectively reduce dependence on oil resources and can use limited oil for more important aspects.The power charging to the battery can be transformed by energy such as coal, natural gas, hydraulic, nuclear energy, solar energy, wind, tidal, etc.In addition, if you charge the battery at night, you can also avoid the peak of power consumption, which is conducive to the balanced load of the power grid and reducing the cost.

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