What does HEV hybrid mode mean?

[JudeFitz]

HEV stands for Hybrid-Electric-Vehicle, which is a hybrid-powered car. Below is the relevant introduction: 1. Definition of HEV: HEV is a compromise between traditional cars and fully electric vehicles. It utilizes both the internal combustion engine of traditional cars (which can be designed smaller) and the electric motor (PMSM or asynchronous motor) of fully electric vehicles (Purely-Electric-Vehicle) for hybrid driving (including the battery and inverter components), reducing the demand for fossil fuels and improving fuel economy, thereby achieving energy-saving, emission-reduction, and alleviating the greenhouse effect. Toyota Prius and Honda Insight are two major players in HEV production. 2. Hybrid method: Hybrid power means the car uses both gasoline and electric power for driving. The advantage is that when the vehicle starts and stops, it is only driven by the electric motor. The engine does not work until a certain speed is reached. Therefore, the engine can always be kept in the optimal working condition, with good power performance and very low emissions. Moreover, the source of electric energy is the engine, so only refueling is needed.