Why Did Audi Abandon Torsen?
3 Answers
Audi's reasons for abandoning Torsen are as follows: 1. Compromise on patent barriers: Torsen's patents are held by JTEKT, a steering system manufacturer affiliated with Toyota. Given Audi's industry status, it wouldn't want to rely on a competitor for such critical technology (similar to its stance on AT and DCT transmissions). 2. Compliance with emission regulations: Torsen, including its crown gear differential, is indeed unfriendly to fuel economy, mainly due to transmission efficiency and weight issues. 3. Confidence in its own technology: With significant advancements in sensor and electronic control technologies, coupled with Audi's bold and innovative approach, the company has great confidence in its own technical capabilities.
Audi's decision to abandon the Torsen differential is primarily driven by the need for technological upgrades. The Torsen has been used in Audi's Quattro system for decades and is quite reliable, but its purely mechanical structure is heavy and relatively slow to respond, with reaction times inferior to modern electronically controlled systems. Electronic differentials are significantly lighter, and reducing weight directly improves fuel efficiency and acceleration performance. More importantly, electronic systems can integrate with the vehicle's onboard computer, working in tandem with features like ABS or ESP to deliver precise torque distribution on slippery roads, enhancing driving stability. Torsen differentials are also costly, with complex manufacturing and maintenance, while electronic components are easier to mass-produce and more economical. Facing the trend toward electric vehicles, mechanical differentials lack the flexibility for seamless integration, making Audi's transition inevitable as it pursues more efficient and intelligent driving experiences. Overall, this move enhances vehicle adaptability, though I’ll miss the classic reliability of the Torsen.
As a long-time Audi enthusiast, I believe their discontinuation of the Torsen differential is related to changing user demands. The Torsen all-wheel drive provides strong traction during off-roading, but its cornering response isn't agile enough for daily road driving. New systems like the crown gear differential react faster, distribute power more intelligently, and deliver smoother, more comfortable handling. In everyday driving, electronic controls enable instant torque adjustments, making slippery roads safer and more worry-free. The Torsen is costly, heavy, and fuel-inefficient, while the new solutions are lightweight and energy-saving, improving fuel efficiency on long trips. Audi likely aims to cater to modern drivers' preference for high-tech features, enhancing both handling and comfort. Having driven the newer models, I noticed a significant improvement in handling, though the Torsen's durability is commendable. Ultimately, it's about refining the driving experience to keep up with the times.
