Audi A8 To Use 48-Volt Battery For Improved Fuel Economy
By using the 48-volt batteries to produce mild hybrid models for its cars, Audi will become the latest automaker to increasingly push for an improvement in fuel economy and lower emissions overall.
Audi’s A8 sedan will come equipped with a 48-volt lithium battery along with a belt-driven alternator/starter, which will recuperate energy while the car brakes and will store it within the battery. Both the models of A8, the gasoline and the diesel will have this as a standard.
Audi is planning to extend this system’s use for the new generations of the Audi A6 and Audi A7. Both the vehicles are supposed to launch next year.Kruse said Audi’s smaller models will not use a 48-volt lithium ion battery but will instead have a lighter, more conventional battery that provides less torque for shorter periods.
While the larger models will have the 48-volt battery, the smaller models from Audi will instead carry a more conventional and lighter battery to provide less torque for shorter periods.
Lesser Fuel Usage
The saved energy within the battery will be able to provide the car’s engine with additional power around 12 kilowatts and about 60 Nm torque. The 48-volt system may lead to reduced consumption of V6 engine by around 0.7 liters/100 km based on European standards.
Apart from Audi, a lot of other automakers too have been using 48-volt battery tech for powering their car systems. Some of the automakers are Mercedes-Benz, Renault, etc. The reason for this is to meet the strict fuel economy, and emissions as the regulations around the world have been rising.In the A8, the 48-volt system will help reduce fuel consumption when the engine restarts after coasting. The A8 can coast for up to 45 seconds with the engine turned off at speeds between 30 kph and 160 kph.
In the Audi A8, the battery system will ideally reduce fuel consumption when the engine restarts. The A8 can coast for about 45 seconds when the engine is turned off while on speed between 30-160kmph. When the driver accelerates again, the alternator/starter will rev the engine.
The Audi vehicles that are equipped with the 48-volt mild hybrid systems will also additionally have a 12-volt separate battery for the standard functions and features of the car.
The Audi A8 will be unveiled in the month of July this year.