Dynamic Skip Fire
DSF® technology delivers 5-15% efficiency gains in passenger vehicles
How Dynamic Skip Fire (DSF®) works
DSF skips or fires individual cylinders dynamically on an event-by-event basis to meet the requested torque from an engine. Through careful control of the number and sequence of combustion events using patented algorithms, engine operation occurs near peak efficiency, creating a software-controlled variable displacement engine. Tula’s algorithms avoid noise and vibration generation to give drivers expected levels of refinement under all driving conditions.
DSF® in real world situations
When high torque is needed, DSF® activates all cylinders.
As torque demand moderates, cylinders are dynamically skipped based on demand.
At slower speeds, maximum fuel efficiency is maintained by skipping more cylinders, even skipping all cylinders during deceleration.