Not all technologies depicted are used in all markets.
Introduction
What is VCM?
VCM (Variable Cylinder Management) is fuel-saving technology that automatically deactivates 1/3 or 1/2 of the cylinders, according to the driving conditions.
Cylinder deactivation idle image
Combustion halted to deactivate the cylinder
VCM, installed in a 6-cylinder engine, shuts off the valves and halts fuel supply in two cylinders when 1/3 of the cylinders are deactivated and in three cylinders when 1/2 of the cylinders are deactivated.
Engine operation with cylinder deactivation
Deactivating the cylinders means that, when VCM is in operation, it’s the same as driving a car with a smaller, lower-displacement engine, emitting less CO2.
When does VCM operate?
VCM operates during everyday driving.
You can also expect VCM to contribute to fuel savings especially at long distance driving when driving at a consistent speed.
VCM technology combines the excitement of a luxury vehicle's ample acceleration with outstanding fuel economy, enhancing both economic and environmental performances.
