Toyota's 48V mild hybrid system is a mild hybrid technology. The system converts kinetic energy into electrical energy for storage when the vehicle is braking, and assists the engine through the motor during starting or acceleration, which can reduce fuel consumption by about 5%-10%, but cannot achieve pure electric driving. Compared to Toyota's HEV hybrid system, the 48V mild hybrid has a battery capacity of only 0.5-1kWh, and the motor has lower power and cannot drive the vehicle independently. The system most commonly adopts the P0 architecture, is compatible with the 12V electrical system through a DC/DC converter, and has the advantages of simple structure and low cost, making it suitable for car owners with basic needs for fuel economy. The technical positioning of the 48V mild hybrid is closer to a "fuel auxiliary system", and there are significant differences in its energy-saving effect and driving experience Compared to HEV/PHEV equipped with large-capacity batteries.
