Control of a flywheel assisted driveline with continuously variable transmission

The paper proposes a control solution for a vehicular driveline with internal combustion engine, a continuously variable transmission and an additional flywheel. This unit plays a part only in transient situations. It compensates for the engine inertia, enabling optimal fuel economy in stationary situations without lossing driveability during transients. For control design, a simple non-linear model is developed,using an advanced simulation model. The compensation of the engine inertia by the additional flywheel is demonstrated by vehicle experiments