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If you're curious about mild hybrid technology but worried it might be too complex, check out Audi's innovative system. It bridges the gap between traditional gasoline engines and full hybrid vehicles, delivering improved efficiency and performance without the complexity of plug-in charging or range limitations. To learn more about Audi's mild hybrid system, read this guide from our team at Audi of Smithtown, where we'll show you how the technology works and explain why it might be the ideal choice for your next luxury vehicle.
The Engineering Behind Audi's Mild Hybrid System
Audi's mild hybrid system centers around a sophisticated 48-volt electrical architecture that provides four times more power than traditional 12-volt systems. Think of it like upgrading from a regular household outlet to a heavy-duty appliance connection. With a dual electrical design, mild hybrid vehicles use the 48-volt system to power the starter and alternator and switch to the standard 12-volt system for the other electronics.
The powertrain generator (PTG) features integrated power electronics with a permanently excited synchronous motor. This compact unit delivers up to 18 kW (24 horsepower) of electrical power and 170 lb-ft of torque, weighing approximately 46 pounds and operating at up to 5,550 rpm.
The system's belt alternator starter allows for a quieter and faster engine startup compared to conventional pinion starters. Audi's mild hybrid electric vehicle (MHEV) systems feature two starters: a conventional 12-volt starter for temperatures below 113 degrees Fahrenheit and an integrated starter/alternator for lower temperatures and start/stop mode. The integrated starter generators replace traditional alternator and starter motor components, providing faster engine startup and shutting down the engine at coasting speeds between 13.7 to 37.3 mph.
The regenerative braking can recharge up to 12 kW of power when slowing down, while the PTG can capture up to 25 kW during sudden braking and deceleration. The system stores the energy in a lithium iron phosphate battery, which can hold 37 ampere-hours (about 1.7 kWh gross) and has a maximum discharge power of 24 kW. The battery features low-temperature water cooling and maintains an optimal charge range of 50%-60%. The integrated brake control system allows for regenerative braking without affecting how the brake pedal feels, while the PTG can supplement power for the combustion engine at up to 87 mph.
Benefits of Audi's Mild Hybrid Technology
Audi's mild hybrid technology gives you impressive improvements in fuel efficiency. For example, the A5 2.0 TDI with MHEV Plus consumes up to 0.38 liters less fuel per 100 km. The more powerful 3.0 TFSI V-6 with MHEV Plus is even better — using up to 0.74 liters less fuel per 100 km. Switching off the engine while coasting dramatically improves the vehicle's efficiency for everyday driving. The best mild hybrid systems can give you 15%-20% better fuel economy.
Environmental benefits are equally impressive. The A5 2.0 TDI reduces CO2 emissions by up to 10 grams per kilometer, and the 3.0 TFSI V-6 reduces CO2 emissions by up to 17 grams per kilometer. The technology also improves the vehicle's performance, providing extra torque and power when accelerating or towing. This combination of efficiency and performance makes the mild hybrid system more appealing than traditional powertrains, offering smoother performance distribution and improved comfort without sacrificing the driving dynamics Audi is known for.
Practical Advantages for Audi Drivers
Audi's mild hybrid technology won't affect your daily driving routine. Unlike plug-in hybrids, there's no need for external charging — the system operates exactly like a traditional gas vehicle while delivering better fuel economy, especially in stop-and-go traffic. The MHEV system boosts power during hard acceleration and allows the combustion engine to shut off when coasting or stopping, making it particularly useful for city driving.
Upkeep is straightforward, with MHEV systems requiring the same maintenance schedule as traditional internal combustion vehicles. However, you'll likely enjoy lower long-term repair costs and longer life spans for your brake pads and rotor thanks to the regenerative braking, which can let you go up to 100,000 miles between brake services and returns 60%-70% of braking energy back to the battery. Audi's new vehicle limited warranty will keep you fully covered for four years or 50,000 miles, giving you peace of mind about your investment.
Experience Audi's Advanced Mild Hybrid Technology
Audi's mild hybrid technology represents the brand's commitment to innovation and efficiency while maintaining the performance and luxury that you expect. If you're ready to experience the future of luxury driving, visit us at Audi of Smithtown to test-drive our electric and hybrid models and discover how this advanced technology can transform your daily driving experience. Our knowledgeable team can walk you through the technology, answer your questions, and help you find the perfect Audi for your needs. Don't just read about innovation — experience it firsthand with a test-drive today.
Grey Audi Sedan Parked Beside Road by Ryan West is licensed with Pexels License
