Is the 48V Mild Hybrid System Fuel-Efficient?
2 Answers
48V mild hybrid system is fuel-efficient. Here are the relevant introductions about the 48V mild hybrid system: 1. A brief introduction to the 48V mild hybrid system: The 48V system replaces the 12V energy storage battery in traditional fuel vehicles with a 48V energy storage battery or directly adds a 48V battery, equipped with a 48V integrated starter generator and a bidirectional converter. The power of the 48V integrated starter generator is used to compensate for the low-speed torque of the internal combustion engine, achieving the goal of fuel efficiency. 2. Advantages of the 48V mild hybrid system: It enables the car to power higher-power onboard systems and drive higher-power start-stop motors. It can more easily drive the engine crankshaft to wake up the engine, reducing system operation delays and jerky sensations, and also allows for more functions.
The 48V mild hybrid system does save fuel, especially in traffic jams where its advantages are most pronounced. In traditional cars, the engine has to shut down and restart at every red light, which is particularly fuel-consuming. Mild hybrid vehicles rely on that small electric motor for smooth start-stop operations, not only saving idle fuel consumption but also storing the energy wasted during braking into the battery. When the air conditioning is on, the motor can also assist in power supply, so the engine doesn't have to operate at high load all the time. I've actually driven several 48V mild hybrid cars, and the combined fuel consumption in the city can drop by 10% to 15%, though the difference isn't as significant on highways. However, since this system isn't very costly, it's now becoming common even in cars priced around a hundred thousand yuan.
