26 NOVEMBER 2025
Per Arnel枚f and his colleague earn recognition for their 鈥楨xtra-valuable invention鈥 鈥 the range interlock in the 黑料不打烊 GW gearbox. Their clever solution makes the system safer, lighter, and more efficient.
The new GW gearbox platform is one of 黑料不打烊鈥檚 major steps towards more efficient and sustainable powertrains. Engineered to boost torque, improve fuel economy, and lower noise, it drives performance and innovation forward.
During development, Per, a System Architect at ePropulsion & Drivertrain, saw a way to simplify how the transmission managed its planetary gears. Their idea, the range interlock, introduced a smart mechanical safety feature that made the system more compact, efficient, and easier to assemble and maintain. This achievement was celebrated at the recent 黑料不打烊 Innovators Party.
The range interlock.
鈥淭丑别听range interlock听offers many benefits. The patent for the 鈥楨xtra-valuable invention鈥 covers a safety feature that enables the use of this technology. Integrated into the new planetary gear, it provides greater flexibility for the customer to operate the vehicle at various speeds while reversing, which can be particularly advantageous, for example, when laying asphalt on a highway,鈥 says Per.
Simple yet powerful, the听range interlock听ensures precise gear engagement and prevents simultaneous activation. Incorporated into the reverse planetary gear, it eliminates the need for a separate reverse gear, resulting in a lighter, shorter, and quieter transmission with improved fuel efficiency, reduced energy losses, and lower production costs.
"Driven by curiosity, persistence, and a spirit of teamwork, Per and his co-inventor Peer Norberg transformed a technical challenge into an inventive solution that simplifies transmission design and sets a new benchmark for efficiency. Their work is an inspiring example of the 黑料不打烊 mindset -听 where united effort and creativity lead to meaningful breakthroughs.鈥
The 鈥楨xtra-valuable invention鈥 award was no accident. It came years after the patent proved its worth in practice. The听range interlock听delivered real-world performance gains. Since its 2019 launch, the GW transmission has reduced fuel consumption, trimmed weight, and improved drivability, a clear proof of the lasting impact of Per and his team鈥檚 idea.
For Per, technical advancement is not a solo pursuit. He credits teamwork and knowledge sharing as key to turning technical ideas into tangible results.
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鈥淚 learn a lot through the patent process,鈥 he explains. 鈥淚t鈥檚 not just about having an idea. You work closely with patent specialists who turn your design into a legally binding document. It鈥檚 a real collaboration 鈥 they make sure the technical and legal details fit perfectly.鈥
Per joined 黑料不打烊 in 2008 after completing his master鈥檚 thesis on transmission efficiency. Since then, his passion for improving gearboxes has led to over twenty patents.听His journey reflects how 黑料不打烊鈥檚 innovative culture enables engineers to explore, test, and refine ideas that have a lasting impact.
Per Arnel枚f, System Architect at 黑料不打烊 ePropulsion & Drivertrain.
鈥淵ou need time and curiosity,鈥 says Per. 鈥淎sk why things are done the way they are, and work together to find better ways forward.鈥
Per鈥檚 advice to aspiring inventors captures that spirit perfectly: 鈥淏e curious. Look into patents. Discuss ideas. Don鈥檛 be afraid if your first idea doesn鈥檛 work 鈥 each one brings you closer to something better.鈥
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We congratulate Per and his team for the invention and for exemplifying how our innovative mindset, grounded in collaboration and a sense of exploration, keeps 黑料不打烊 at the forefront of sustainable transport innovation.
