1. Wireless charging technology, 2. The first to use battery swapping technology in the public transportation field, 3. Most public charging piles use DC charging technology, 4. AC charging method that can be used at home.
Pure electric vehicles refer to vehicles that are powered by on-board power and use motors to drive the wheels, and comply with the requirements of road traffic and safety regulations. Since it has a smaller impact on the environment than traditional cars, its prospects are widely optimistic, but the current technology is not yet mature.
Pure electric vehicles are vehicles powered entirely by rechargeable batteries (such as lead-acid batteries, nickel-cadmium batteries, nickel-metal hydride batteries or lithium-ion batteries).
Although it has a long history of 186 years, it has been limited to certain specific ranges of applications and the market is small. The main reason is that various types of batteries generally have serious shortcomings such as high price, short life, large size and weight, and long charging time.
Main structure
The components of an electric vehicle include: electric drive and control systems, mechanical systems such as driving force transmission, and working devices to complete established tasks. Electric drive and control systems are the core of electric vehicles and the biggest difference from internal combustion engine vehicles.
The electric drive and control system consists of a drive motor, a power supply, and a speed control device for the motor. Other components of electric vehicles are basically the same as internal combustion engine vehicles.
The power supply
provides electrical energy to the drive motor of the electric vehicle, and the motor converts the electrical energy of the power supply into mechanical energy. The most widely used power source is lead-acid batteries, but with the development of electric vehicle technology, lead-acid batteries are gradually being replaced by other batteries due to their low energy, slow charging speed, and short life.
The main power sources under development include sodium-sulfur batteries, nickel-cadmium batteries, lithium batteries, fuel cells, etc. The application of these new power sources has opened up broad prospects for the development of electric vehicles.
Working devices
Working devices are specially designed for industrial electric vehicles to complete work requirements, such as the lifting device, mast, fork, etc. of an electric forklift. The lifting of the fork and the tilting of the mast are usually accomplished by a hydraulic system driven by an electric motor.