Where is the technical content of new energy vehicles?

Traditional cars with relatively fossil energy. New energy vehicles include electric energy and hydrogen energy. The key point of developing new energy vehicles is not to say that new energy vehicles have a qualitative leap in price or performance compared with fossil energy vehicles. In fact, if we summarize the technical content of new energy vehicles, we can generally analyze them from two aspects, one is the energy system, and the other is the drive system. Let's talk about the technical content of the energy system first. Different from our traditional internal combustion engine vehicles, the batteries used in parts of new energy vehicles, electric vehicles or hybrid vehicles are constantly climbing to the energy ladder.

We are all familiar with these. The most critical factor of these batteries is battery energy density, which will also affect the choice of future power battery technology path. Here, let's popularize what is the battery energy density. Simply put, it is the electric energy released per unit volume. If it is used in the power battery of an electric vehicle, there are generally two concepts, one is the energy density of the battery pack and the other is the energy density of the battery pack.

Let me give you an example. For example, the battery energy density of BYD Lishi product 20 10 is 90wh/kg. Ten years later, the new battery released by Weilai Automobile has reached 360wh/kg, and the cruising range of major electric vehicle manufacturers is also constantly improving. For example, GAC claims that it can fully charge 4/5 of the electricity in 8 minutes, and then the electric vehicle market in China is gradually occupied by batteries in Contemporary Amperex Technology Co., Ltd.. Especially with the development of science and technology and the comprehensive promotion of new energy vehicles, new energy vehicles will usher in great prosperity.

Next, talk about the technical content of the drive system of new energy vehicles. The biggest difference between it and our traditional car is that its drive system has the function of energy recovery. Energy recovery? A friend is curious, how did he realize recycling? Don't worry, let's talk about two ways in the process of vehicle deceleration, one is to step on the brakes, and the other is to relax the accelerator, which many friends who drive should know. But when the new energy electric vehicle slows down, it converts the kinetic energy of the vehicle into electric energy. This process is more complicated.