Collaborative R&D Competitions
Turner Powertrain Systems Ltd – APWES
Scaling new heights of CVT architecture reduces CO2 emissions
This project delivers engine downsizing that can be deployed in a range of off-highway machines, delivering advantages including significant improvements in fuel consumption together with lower CO2 emissions. This improved performance is achieved, not least, through an innovative flywheel based energy storage system.
![](https://www.apcuk.co.uk/wp-content/uploads/2021/09/petal-diagram-variations-v01-22.png)
Engine downsizing is the bigger picture for off-highway machines
Project Highlights
- Led from Caterpillar’s Wolverhampton facility and will involve consortium partners UK facilities in Peterborough, Desford, Silverstone and Hatfield Hertfordshire.
- Scaling Continuous Variable Transmission (CVT), typically utilised in larger off-highway machines to the smaller machines greatly improves efficiency
- Coupled with an Energy Storage System (EES) these improvements will enable improved performance.
- This innovative approach enables engine downsizing, offering significant reduction in fuel consumption and CO2 emissions and importantly, reduces cost of ownership
- Includes a low-cost flywheel into the highly integrated drivetrain, developed by Punch Flybrid, UK
- Total project value £8.2 million, with half funded through the APC
Project Consortium
- Turner Powertrain Systems
- Punch Flybrid UK
- Productiv Limited
- University of Hertfordshire