What does the 48V mild hybrid system mean?

[Patricia]

48V mild hybrid system refers to a mild hybrid system with a voltage of 48 volts, which replaces the traditional lead-acid battery with a power-type lithium-ion battery with an energy capacity of less than 1 kWh, and replaces the traditional starter motor and generator with a BSG motor. In addition to the automatic start-stop function, it can also provide auxiliary power when necessary. The 48V mild hybrid system is based on the original 12V electrical system of traditional vehicles, increasing the voltage to 48V, and through the addition of components such as electric motors and battery packs, it has the effect of assisting vehicle propulsion and storing and recovering electrical energy. Using a 48V mild hybrid system can improve the fuel efficiency of the car.