With the rapid development of industry and transportation, air pollution is becoming more and more serious, and our earth is suffering from an unbearable burden.
In recent years, with the rapid increase of urban motor vehicles, air pollution in some cities of China is changing to a mixture of coal and automobile exhaust. The fine particulate matter discharged from automobile exhaust is easy to absorb toxic substances and enter the deep respiratory tract of people and cause greater harm.
After the popularization of unleaded gasoline, the content of volatile organic compounds, especially benzene series, in automobile exhaust increases greatly, making air pollution more complicated. Therefore, the emergence of electric vehicles has greatly changed the current structure of the automobile industry!
So the question is, are electric cars really greener than conventional ones? The answer is yes! At least from the power source! The power source of the electric vehicle is powered by
the on-board power supply, and the wheels are driven by the motor, which meets the requirements of road traffic and safety laws and regulations. It is widely expected to have a lower environmental impact than conventional cars, but the technology is not yet mature. The electric car's battery current is passed through the power regulator to the motor, which drives the car through the drive train. And the power source of the fuel car is the engine, and the engine power comes from the inside of the cylinder. Engine cylinder is a place for the internal energy of fuel into kinetic energy, can be understood as simply, fuel combustion in cylinder,a huge pressure to push the piston moves up and down, through the crankshaft connecting rod to force, eventually translate into rotary motion, again through the transmission and drive shaft, the power transmitted to the drive wheels, so as to push the car forward.汽车比较
So, on balance, electric cars are cleaner than those that rely on internal combustion engines, only if the energy used to charge them is also clean. For now: Electric cars are no greener than petrol cars.
However, as the technology of electric vehicle construction becomes more and more perfect in the future, electric cars will be more environmentally friendly than petrol cars.
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