What is the Audi A6L 48V Mild Hybrid?
2 Answers
Here is a detailed explanation of the 48V mild hybrid system: 1. 48V Mild Hybrid System: The "48V Mild Hybrid" is also known as MHEV (Mild Hybrid Electric Vehicle). It upgrades the traditional 12V circuit voltage to 48V and replaces the conventional starter and alternator with a BSG (Belt-Driven Starter Generator) and a 48V/12V bidirectional DC/DC converter. 2. Basic Principle of the 48V Mild Hybrid System: In terms of mechanical definition, the 48V mild hybrid system is not classified as a new energy vehicle because it cannot independently provide electric power for pure electric driving. During daily use, the electric energy is only used to assist in vehicle propulsion. Building upon the original 12V electrical system of conventional vehicles, the voltage is increased to 48V, and components such as electric motors and battery packs are added to enable auxiliary vehicle propulsion and energy storage/recovery functions.
I'm quite fascinated by the 48V mild hybrid system in the Audi A6L. Essentially, it's an auxiliary power electrical system that incorporates a 48-volt battery and electric motor to complement the engine. During operation, it provides additional torque during startup or acceleration, making the car smoother; during braking, it recovers energy and stores it in the battery, offering good fuel-saving effects. The start-stop function operates smoothly without vibrations, especially in urban driving conditions, reducing driver fatigue. The battery typically lasts 8-10 years, with simple maintenance that doesn't add burden. As a technology enthusiast, I value its balance—while it can't run purely on electricity, it costs less than a full hybrid, improves efficiency, and is environmentally friendly.
