Traditional Culture Encyclopedia - Traditional virtues - What are the electric cars now? How to distinguish pure electric vehicles, plug-in vehicles and hybrid vehicles?
What are the electric cars now? How to distinguish pure electric vehicles, plug-in vehicles and hybrid vehicles?
In the drive system of electric vehicle, the motor is placed in front of the front of the car, and the power battery pack is arranged at the bottom of the car body slightly behind.
2 Hybrid electric vehicle
Nowadays, hybrid vehicles are generally hybrid vehicles, that is, fuel engines and motors are used to provide power for vehicles. The device on the hybrid vehicle can recover energy when the vehicle slows down, brakes and goes downhill, and the motor provides power for the vehicle, so its fuel consumption is relatively low, but the price of the vehicle is relatively high.
According to the connection mode of hybrid drive, hybrid power systems are mainly divided into three categories: series hybrid power systems, parallel hybrid power systems and series-parallel hybrid power systems.
Series hybrid power system: the internal combustion engine directly drives the generator to generate electricity, and the generated electric energy is transferred to the battery through the control unit, and then transferred to the motor by the battery to be converted into kinetic energy, and finally the automobile is driven through the speed change mechanism.
Parallel hybrid power system: Parallel hybrid power system has two sets of drive systems, the traditional internal combustion engine system and motor drive system, which can not only
So as to coordinate their work at the same time, or they can work independently to drive the car.
Series-parallel (series-parallel) hybrid power system: the internal combustion engine system and the motor drive system each have a set of mechanical transmission mechanisms, and the two mechanisms are combined through a gear train or planetary gear structure, so as to comprehensively adjust the speed relationship between the internal combustion engine and the motor.
3 fuel cell vehicle
Fuel cell vehicle is a kind of electric vehicle, and the energy of its battery is directly converted into electric energy through the chemical action of hydrogen and oxygen, rather than through combustion. The chemical reaction process of fuel cell will not produce harmful products, so fuel cell vehicles are pollution-free vehicles.
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