What is a hybrid electric vehicle

The commonly referred to hybrid power generally refers to the hybrid of gasoline and diesel, which is a mixture of fuel (gasoline, diesel) and electrical energy. Hybrid electric vehicles are driven by electric motors as auxiliary power to the engine
Working Principles of Oil Electric Hybrid Electric Vehicles
The principle of a hybrid electric vehicle is similar to that of a two person bicycle, where two people can work simultaneously or independently. Its power system mainly consists of control system, drive system, auxiliary power system, and battery pack. The following editor takes the series hybrid electric vehicle as an example to analyze the working principle of hybrid electric vehicles.
At the beginning of vehicle operation, the battery is in a fully charged state, and its energy output can meet the requirements of the vehicle. The auxiliary power system does not need to work. When the battery level is below 60%, the auxiliary power system starts: When the vehicle's energy demand is high, the auxiliary power system and battery pack simultaneously provide energy to the driving system; When the energy demand of the vehicle is low, the auxiliary power system provides energy for the driving system and also charges the battery pack.
Due to the presence of battery packs, the engine operates in a relatively stable operating condition, resulting in improved emissions. Not all hybrid vehicles rely on electric engines, batteries, and wires. Some vehicles are driven by a combination of hydraulic engines, bell wires, and accumulators.