Is a big problem today? Is energy vehicles really environmentally friendly?What is the difference between new energy vehicles and ordinary cars?What are the types of new energy vehicles?Lets take a look with Xiaobian below!
Is new energy vehicle really environmentally friendly?
Advantages of electric vehicles
Little environmental pollution, low noise, saving energy, convenient maintenance and maintenance, and good policy.
Disadvantages of electric vehicles
The mileage is short, the charging time is long, and the public supporting facilities such as charging stations are not perfect.
The difference between electric vehicles and ordinary cars
Electric vehicles use electric energy, ordinary vehicles use petroleum and other chemical fuels; electric vehicles are charging about 150km at a time, and ordinary cars are more than 300km at a time; electric vehicles are cheap, and ordinary cars use high costs;There are many gas stations; charging vehicles are pollution -free, and ordinary cars will excrete harmful gases; electric vehicles in the same model are more expensive than ordinary cars; electric vehicles are not noisy in driving, and ordinary cars will have the opportunity to generate noise.
Is electric vehicle environmental protection?
Engine efficiency
Electric motors are more efficient than gasoline engines.The power source of the motor is also a fossil fuel. Whether a car is energy -saving is actually talking about its engine efficiency and converting the fuel/energy source into the efficiency of mechanical energy.The highest efficiency of the theory of steam and diesel engines is 50%, and it is actually only 30-40%; the maximum efficiency of motor theory is 88%, and the actual use efficiency exceeds 60%.
Driving efficiency
In urban roads, electric vehicles are more efficient.The lower the speed of electric vehicles, the more electricity saves power, which is basically in line with the energy consumption trend; most of the economic speed of most of the automotive and diesel vehicles is between 60-100 kilometers.
Energy conversion
The electric energy obtained by electric vehicle batteries has been converted multiple times, and is not energy saving?The energy forms used by steam, diesel and electric vehicles are all from the complex conversion and transmission process from oil wells. They cannot simply judge which one is more environmentally friendly.
Energy utilization efficiency
Even if all electricity comes from fossil fuels, electric vehicles still have the advantage of energy saving.In order to maintain the operation of the cylinder of a large displacement engine, even under low -load operation conditions, high -performance sports cars must be much more fuel than small -displacement cars.The electrical motor has the characteristics of "how much power is out of power". Whether it is high -performance electric vehicles or household electric vehicles, there will be no significant difference in power consumption under low -load operation.【Detailed >>】
Electric vehicle battery type
Lithium iron phosphate battery
Advantages: high safety performance, long service life, good high temperature performance, high capacity, large capacity, no memory effect, light weight, environmental protection.
Disadvantages: The density and density of vibration and density are very low, resulting in low energy density of lithium -ion batteries; the preparation cost of materials is high and the battery manufacturing cost is high, the battery rate is low, and the consistency is poor.
lithium battery
Advantages: High energy density, long service life, light weight, high and low temperature adaptability, green and environmental protection, high power tolerance, low self -discharge rate, basically production does not consume water, etc. It has now become the mainstream of electric vehiclesCar battery.
Disadvantages: poor safety, unable to discharge large current, expensive price, high production requirements, high cost, limited use conditions, high and low temperature use dangerous use.
Iron battery
Advantages: small volume, light weight, long life, no pollution
Disadvantages: During the production process of iron batteries, the process requirements are very high.In addition, the price of iron batteries is also high. The cost of lithium iron phosphate battery packs produced in China is between 30,000 and 40,000 yuan. If it is a 120Ah lithium iron phosphate battery pack, the market price will be about 120,000 yuan.
The fuel cell
Advantages: high energy conversion efficiency; flexible installation location; fast load response, high operating quality; strong overload capacity, etc.
Disadvantages: The cost of fuel cells is high, hydrogenation fuel cannot be used directly, hydrogen storage technology is limited, and the infrastructure of hydrogen fuel infrastructure is insufficient.
Electric vehicle purchase
Electric vehicle price comparison
The price of commercially available electric vehicles is generally between 80,000 and 300,000 yuan, but there are also generally feeling that the price may be high, and the low price is lacking protection.Here we must first understand the cost of electric vehicles.
Propaganda product discerning
Any electric vehicle sales point promotes the advantages of its own distribution products to avoid shortcomings.When a salesperson promotes product characteristics, consumers should see if it is practical and reliable.
Divide configuration advantages and disadvantages
Electric vehicle configuration options are not just costs and service life issues, but also the main problem of driver safety. This consumers must fully understand.You can understand performance by looking at the appearance, understanding the vehicles technical indicators, and test drive.
After -sales service level
Consumers should understand the distribution of dealers professional knowledge, maintenance capabilities, and marketing and maintenance outlets.Take a look at the manufacturers identification level of dealers maintenance capabilities to determine the rest assured and comfortable use.

Related tags： Auto Accessories