What Does 48V Mild Hybrid Mean?
1 Answers
48V mild hybrid refers to modifying traditional fuel-powered vehicles by replacing the 12V energy storage battery with a 48V energy storage battery or directly adding a 48V battery, along with a 48V integrated starter-generator and a bidirectional converter. The power from the 48V integrated starter-generator is used to compensate for the low-speed torque of the internal combustion engine, achieving fuel-saving purposes. The 48V battery can also power other electrical systems, such as the air conditioning and electronic turbocharger. The 48V mild hybrid system consists of three main components: an electric motor, a power battery pack, and a voltage controller (DC-DC converter). The 48V mild hybrid system does not directly replace the original 12V system but is superimposed on top of it. The 12V system still supports conventional functions like lighting, ignition, and the audio system, while the 48V system is used to power the air conditioning system, provide additional power assistance, and handle brake energy recovery. The 48V mild hybrid system can also provide start-stop assistance and additional power assistance during acceleration, improving the smoothness and responsiveness of the vehicle during acceleration.