How many charging methods are there for pure electric vehicles?

1, wireless charging technology, 2, taking the lead in using power exchange technology in the field of public transportation, 3, DC charging technology is mostly used in public charging piles, 4, AC charging can be used at home.

Pure electric vehicle refers to a vehicle powered by on-board power supply and driven by motor, which meets the requirements of road traffic and safety regulations. Because it has less impact on the environment than traditional cars, its prospect is widely optimistic, but the current technology is not mature.

A pure electric vehicle is a vehicle powered by rechargeable batteries (such as lead-acid batteries, nickel-cadmium batteries, nickel-hydrogen batteries or lithium-ion batteries).

Although it has a long history of 186 years, it has been used only in some specific fields and the market is small. The main reason is that all kinds of batteries generally have serious shortcomings such as high price, short life, large volume and weight, long charging time and so on.

primary structure

The composition of electric vehicle includes: electric drive and control system, driving force transmission and other mechanical systems, as well as working devices to complete the established tasks. Electric drive and control system is the core of electric vehicle, and it is also the biggest difference from internal combustion engine vehicle.

The electric drive and control system consists of driving motor, power supply and motor speed regulating device. Other devices of electric vehicles are basically the same as internal combustion engines.

Power?Supply?

It provides electric energy for the driving motor of the electric vehicle, and the motor converts the electric energy of the power supply into mechanical energy. Lead-acid battery is the most widely used power supply, but with the development of electric vehicle technology, lead-acid battery is gradually replaced by other batteries because of its low energy, slow charging speed and short life.

The main power sources being developed are sodium-sulfur batteries, nickel-cadmium batteries, lithium batteries and fuel cells. The application of these new energy sources has opened up broad prospects for the development of electric vehicles.

Working device

The working device is specially set for industrial electric vehicles to complete the operation requirements, such as the lifting device, gantry and fork of electric forklift. The lifting of the fork and the tilting of the gantry are usually completed by a hydraulic system driven by a motor.