What are the differences between the technical characteristics of new energy vehicles and traditional fuel vehicles?

At present, there are a variety of new energy vehicles on the market, such as BEV pure electric vehicles, REEV extended-range electric vehicles, PHEV plug-in hybrid electric vehicles, FCEV fuel cell electric vehicles and other new energy vehicles using efficient energy storage devices.

Compared with traditional fuel vehicles, the biggest feature of new energy vehicles is the change of the power system. The power system of the traditional fuel vehicle takes the engine as the power source, and the cooling, lubrication, fuel, starting, ignition and transmission system as the auxiliary; In new energy vehicles, the power system of BEV, PHEV and REEV replaces the traditional engine, which is mainly composed of the “three electric” system. The FCEV uses a fuel cell plus a power battery or a supercapacitor as its power system. In the “three electricity” system, the battery is the power source of new energy vehicles; The motor is the driving device of the new energy vehicle, which converts the electric energy of the battery into mechanical energy to drive the vehicle through operation. Electric control control motor operation, directly determines the speed of the car, acceleration and other main performance indicators. The “three power” core technology determines the vehicle performance to a large extent, and is a very important indicator for evaluating new energy vehicles.

In recent years, in the field of new energy technology, automotive thermal management system has attracted more and more attention. Due to the different driving principles of fuel vehicles and new energy vehicles, fundamentally promote the upgrade and change of vehicle thermal management, the new energy thermal management system is different from the thermal management structure of fuel vehicles is relatively simple to heat dissipation and other characteristics, but also shoulders the important mission of ensuring battery life and vehicle stability and safety, and its performance has become a key factor in determining the power of new energy vehicles.