A pure electric vehicle is a vehicle that is powered entirely by a rechargeable battery such as a lead-acid battery, a nickel-cadmium battery, a nickel-hydrogen battery, or a lithium-ion battery. The advantages of pure electric vehicles are: no pollution, low noise; simple structure, convenient use and maintenance; high energy conversion efficiency; at the same time, it can recover the energy when braking and downhill, and improve the utilization efficiency of energy; “Gudian” is charged to stabilize the peak-to-valley difference of the power grid.

What are the basic structures of pure electric vehicles?

The structure of electric vehicles is various and flexible, and is generally divided into two types: pure electric vehicle motor central drive and electric wheel drive. The central driving mode of the motor borrows the driving scheme of the internal combustion engine vehicle, replaces the internal combustion engine with the electric motor and its related components, and drives the wheels on the left and right sides with one electric motor. The volume and quality of the mechanical transmission in the form of an electric wheel drive is greatly reduced compared to the central drive form of the motor, and the efficiency is significantly increased at the expense of increasing the complexity and cost of the control system.

What types of pure electric vehicles are there?

Since the development of pure electric vehicles, there are many types, which are usually classified according to the purpose of the vehicle, the number of vehicle power sources, and the composition of the drive system. According to different classifications, pure electric vehicles can be divided into electric cars, electric trucks and electric buses.

(1) Electric cars are currently the most common pure electric vehicles. In addition to some concept cars, pure electric cars have begun mass production, Dongfeng Nissan Kaichen morning wind, BYD Qin has entered the automotive market.

(2) There are still relatively few electric trucks used for power transportation of electric trucks. In mines, construction sites and some special venues, some large-tonnage pure electric trucks have already appeared.

(3) Electric buses, currently pure electric passenger cars are also rare; pure electric buses are used as buses, and have already performed well in bus routes of some cities, as well as in World Expos and world sports games.

What is the history of pure electric vehicles?

In 1873, in the second half of the 19th century, the Englishman Robert Davidson made the world's first practical electric car. This is more than 10 years before the Germans Gottlieb Daimler and Karl Benz invented the gasoline engine car. The electric vehicle invented by Davidson is a truck with a length of 4800mm and a width of 1800mm. It uses a primary battery that reacts with iron, zinc, amalgam and sulfuric acid. Thereafter, from 1880, a secondary battery that can be charged and discharged was applied. From the development of primary batteries to secondary batteries, this was a major technological change for electric vehicles at the time, and the demand for electric vehicles has been greatly improved. In the second half of the 19th century, it became an important product of transportation, and wrote a brilliant page in the history of human transportation. In 1890, electric buses were driven on the streets of France and London. The internal combustion engine technology was still quite backward. The mileage was short, the faults were many, the maintenance was difficult, and the electric vehicles were easy to maintain.

In Europe and America, the most advanced electric car was at the end of the 19th century. In 1899, the Frenchman Kamen Gina drove a 44kW dual-motor-powered rear-wheel-drive electric vehicle, creating a record of 106km per hour.

Among the cars made in the United States in 1900, there were 15,755 electric cars, 1,684 steam engines, and only 936 gasoline engines. After entering the 20th century, due to the continuous advancement of internal combustion engine technology, in 1908, the Ford Motor Company's T-type car came out. The large-scale mass production of automobiles by means of assembly line production made gasoline engine vehicles popular, resulting in the existence of steam engine and electric vehicles in the market competition. The lack of technical and economic performance has caused the former to be eliminated by the ruthless years, while the latter has shrunk.

What is the core technology of pure electric vehicles?

The development of electric vehicles must solve four key technologies: battery technology, motor drive and its control technology, electric vehicle technology and energy management technology.

Battery technology battery is the power source of electric vehicles, and it is also a key factor that has always restricted the development of electric vehicles. The main performance indicators of batteries for electric vehicles are specific energy (E), energy density (Ed), specific power (P), cycle life (L), and cost (C). In order for electric vehicles to compete with fuel vehicles, the key is to develop high-efficiency batteries with higher energy, higher specific power and longer service life.

Electric drive and its control technology Motor and drive system are the key components of electric vehicles. To make electric vehicles have good performance, the drive motor should have wide speed range, high speed, large starting torque, small size and small quality. High efficiency and dynamic braking and energy feedback. At present, electric motors for electric vehicles mainly include DC motors (DCM), induction motors (IM), permanent magnet brushless motors (PMBLM), and switched reluctance motors (SRM).

Electric vehicle vehicle technology Electric vehicle is a high-tech comprehensive product. In addition to batteries and motors, the body itself also contains many high-tech, and some energy-saving measures are easier to achieve than improving battery energy storage capacity. Using lightweight materials such as magnesium, aluminum, high-quality steel and composite materials to optimize the structure, the car's own quality can be reduced by 30%-50%; energy recovery during braking, downhill and idle speed; high elastic lag material The high-pressure radial tires can reduce the rolling resistance of the car by 50%; the car body, especially the bottom of the car, is more streamlined, which can reduce the air resistance of the car by 50%.

Energy Management Technology Battery is the energy storage power source for electric vehicles. In order to obtain very good dynamic characteristics, electric vehicles must have a battery with higher energy, longer service life and higher specific power as a power source. In order for electric vehicles to have good working performance, it is necessary to systematically manage the batteries.

What is the current status and future prospects of pure electric vehicles in China?

Although China's electric vehicles have not started early in Europe and the United States, the country has taken strategic considerations from maintaining the energy security, improving the atmospheric environment, improving the competitiveness of the automobile industry, and realizing the leap-forward development of China's automobile industry. From the "Eighth Five-Year Plan" to the present, Electric vehicle research has always been a national planning project, and in 2001, the “Special Technology Special Project for Electric Vehicles” was established. By organizing enterprises, universities and research institutions, and concentrating all aspects of joint research, we are now in a strong stage of R&D. Some technologies have already caught up with the world's advanced level.

With the increasing competition in the electric vehicle industry, mergers and acquisitions and capital operations among large electric vehicle companies are becoming more frequent. Domestic excellent electric vehicle companies are paying more and more attention to the research of the industry market, especially the changes in the development environment and customer demand trends. In-depth study. Because of this, a large number of domestic excellent electric vehicle brands have risen rapidly and gradually become the leader in the electric vehicle industry!

In addition, the State Council issued a notice on the “Energy Conservation and New Energy Vehicle Industry Development Plan (2012-2020)” (hereinafter referred to as the “Development Plan”), which deleted the “Recently Focused Hybrid Electric Vehicles” and “ The medium/heavy hybrid passenger car accounts for more than 50% of the annual production and sales of passenger cars. This industry expert believes that this effectively avoids the disputes about the new energy development route that may be caused by the focus on hybrid electric vehicles, and avoids the high-definition indicators that were previously determined, and clarifies the future development of new energy. aims.

For example, the world's first mass-produced pure electric vehicle to listen to the wind, has sold a total of 135,000 vehicles worldwide. In August 2009, when Nissan Motor Co. first publicly demonstrated this economical zero-emission vehicle to the world, people may not be able to clearly predict its future. Nowadays, Nissan’s impressive performance of “135,000 vehicles” tells us that the life of electric vehicles into ordinary people is no longer far away, and they are being paid more and more attention by consumers.

Big Smoke Vape

Big cloud vape kits for when you want the biggest clouds. All our vape mods ship from China.We are Disposable Vape supplier of big smoke.
Here're the best Vape Pen with big clouds in 2022.Best Vape disposable in the US.Best Vape Mods in the UK.

Big Smoke,Vape Big Smoke,Big Smoker Hqd,Smok Mesh Coil

TSVAPE Wholesale/OEM/ODM , https://www.tsvaping.com