THE CHALLENGE

The U.S. Marines Medium Tactical Vehicle Replacement (MTVR) – a 15 ton cargo vehicle - was forward deployed in Iraq and Afghanistan, but the fuel consumption burden to support them was higher than desired.

THE SOLUTION

Nanohmics performed full-vehicle energy consumption assessment, including measuring energy consumption of air-brakes, in-cab accessories, alternator and electric subsystems, along with normal vehicle driving operation. Our assessment showed that idle-operation used power in-cabin accessories and HVAC was the major contributor. We designed and tested a hybrid-electric cabin HVAC system that allowed for 8 hours of silent watch operation without running the vehicle engine, reducing fuel consumption by 8% for the historical use case scenario.

BENEFIT TO CLIENT

Nanohmics fuel efficient MTVR hybrid HVAC solution can be retro-fit to existing MTVRs without significant modification, and allows for extended “silent-watch” operation, addressing the initial need for a fuel consumption reduction, and also providing a new capability at minimal cost in a legacy platform.