Allison Transmission recently unveiled the integration of the Allison 4000 Series transmission with a Class 8 truck featuring a hydrogen internal combustion engine at SAE International’s Commercial Vehicle Engineering Congress in Schaumburg, Illinois. The hydrogen-powered vehicle exhibited emissions control capabilities that outperform EPA/CARB 2027 and Euro 7 standards. Ryan Milburn, VP of product engineering at Allison Transmission, emphasized the critical role of internal combustion engine powertrain solutions in advancing towards ultra-low emissions and sustainability objectives while maintaining performance and reliability. Allison's automatic transmissions, adaptable to various fuel sources, ensure durability and reliability without compromising fleet productivity. Through its power shift technology and torque converter, Allison enhances startability, drivability, and overall productivity to counterbalance the challenges associated with alternative fuels. The truck, originally revealed at the 2024 ACT Expo in Las Vegas, is part of SwRI's broader initiative to explore hydrogen-fueled internal combustion engines for decarbonizing the transportation sector. The H2-ICE Consortium, launched by Southwest Research Institute in November 2022, aims to showcase the potential of hydrogen as a clean fuel source in the transportation industry.