Abstract
Continuously Variable Transmission (CVT) technology is spreading. Fuel consumption is a key driver. Next to driveline synergy optimizations the improvement of CVT components is mandatory to comply with increasing demands. Pushbelt development within Bosch focuses on measures that support both directions. The latest pushbelt release contains measures that improve variator efficiency and ratio coverage at increased torque capacity and wear resistance. This paper explains these measures and their working mechanisms. The newly developed pushbelt combines enhancements in fuel efficiency and power density in a recently released transmission where it supports the world’s largest CVT ratio coverage of 8.7(1).
