Traditional cars are converted from gasoline to gasoline by internal combustion engines to drive cars. Hybrid vehicles (referred to as "hybrid cars") have more power-consuming electric drive systems than traditional fuel-consuming cars, mixing "oil" and "electric" power sources, but how to mix them, there is a lot of articles inside. .
Hand in hand
On the basis of the structure of a traditional automobile, an electric power drive system (including a generator, an electric motor, a battery, etc.) is connected in series to become a series hybrid vehicle (also known as an extended-range electric vehicle), from which it is known that this is Electric-powered cars use self-sufficient electricity. Of course, electricity is not produced out of thin air. Instead, the internal combustion engine burns gasoline to generate kinetic energy, which is supplied to the generator for power generation, and then sent to the electric motor to drive the car. The excess electricity is temporarily stored in the battery.
Seeing this, maybe you have doubts, is it not good to burn gasoline directly, why do you want to toss it? It is well known that the conversion of chemical energy-electric energy-kinetic energy wastes a lot of energy compared to the conversion of chemical energy-kinetic energy. Moreover, the electric power drive module is added, the weight of the vehicle seems to increase, and the fuel consumption increases accordingly. . However, since the engine does not directly drive the car, it only provides power to the generator, and the structure is very simple (for example, the gearbox and the like are no longer arranged), the output power of the battery is more stable than that of the generator, and almost no excess energy is generated, so In the long run, energy conservation can still be achieved.
Individually mixed
There are series connected naturally in parallel. The electric drive system of a parallel hybrid vehicle is an independent existence. The internal combustion engine and the electric motor are structurally independent of each other, and provide power to the vehicle alone or together. However, the independence of the two does not mean that “the old and the dead do not come”. For example, in the case of a large amount of energy consumption such as acceleration and climbing, the two often drive the car together; in the constant speed and normal state, only the internal combustion engine works; when the car starts and runs at low speed, only the motor works, and the energy consumption can be satisfied. Of course, in the case of deceleration braking and insufficient battery power, the excess power provided by the internal combustion engine is converted into electric energy and stored in the battery. The original intention of the parallel design is to recover excess kinetic energy and save energy.
In addition to the division of the power system structure, the hybrid car also has a plug-in (ie whether external charging is required).
Plug-in hybrid car, to put it bluntly, is a pure electric car with "milk smell is not dry". Plug-in hybrid cars usually consume power on the road. When the power consumption is low, the prototype is exposed, and the internal combustion engine has to be started to continue to drive the car. At this time, the hybrid car is no different from the traditional car. The internal combustion engine of the plug-in hybrid vehicle only provides power to the car, and does not charge the battery. If the battery wants to be resurrected, it must be connected to the external charging pile for charging, while the plug-in type does not need to be charged, and the electric energy is self-sufficient. . Compared with the non-plug-in type, the battery capacity of the plug-in hybrid car is usually larger. When the battery technology bottleneck is broken, the battery capacity is large enough, and the pure electric car will come into being!
