Categories

Introduction

Advantages

Disadvantages

BEV

It is a kind of vehicle which uses a single battery as the power source of energy storage. It uses the battery as the power source of energy storage, provides the electric energy to the motor through the battery, drives the motor to run, thus promotes the vehicle to run.

The technology is relatively simple and mature, and can be charged wherever there is power supply.

The energy stored in the unit weight of the battery is too little, and the battery of the electric vehicle is more expensive and has not formed an economic scale, so the purchase price is expensive.

HEV

It is a vehicle whose driving system is composed of two or more single driving systems which can run at the same time. The driving power of the vehicle is provided by a single driving system or multiple driving systems according to the actual driving state of the vehicle.

1) The engine is relatively small (down size), and it works under the optimal condition of low fuel consumption and less pollution.

2) In the downtown area, the internal combustion engine can be shut down and driven by the battery alone to achieve “zero” emission.

The system structure is relatively complex; the fuel saving effect of long-distance and high-speed driving is not obvious.

FCEV

It is a kind of vehicle driven by the main power source, which uses the electric energy generated by the electrochemical reaction in the fuel cell under the action of hydrogen and oxygen in the air under the catalyst. Fuel cell electric vehicle is essentially a kind of pure electric vehicles, the main difference is that the working principle of power battery is different.

1) Zero emission or nearly zero emission.

2) Reduce water pollution caused by oil leakage.

3) Reduce the emission of greenhouse gases.

4) The conversion efficiency of fuel cell is high (about 60%), and the fuel economy of the whole vehicle is good.

5) Stable operation without noise.

Fuel cells are expensive, but also expensive to use (hydrogen).