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Active Fuel Management (formerly known as displacement on demand (DoD)) is a trademarked name for the automobile variable displacement technology from General Motors.It allows a V6 or V8 engine to "turn off" half of the cylinders under light-load conditions to improve fuel economy.
Honda J35A 3.5L V6 SOHC i-VTEC Variable Cylinder Management(VCM) Engine on 2008 Honda Inspire. Variable Cylinder Management (VCM) is Honda's term for its variable displacement technology, which saves fuel by using the i-VTEC system to disable one bank of cylinders during specific driving conditions—for example, highway driving.
The use of cylinder deactivation at light load means there are fewer cylinders drawing air from the intake manifold, which works to increase its fluid (air) pressure. Operation without variable displacement is wasteful because fuel is continuously pumped into each cylinder and combusted even though maximum performance is not required.
Forced induction, and cylinder deactivation options were engineered into the engine design, but have not been implemented from the factory, remaining "on the shelf" as of 2016. [4] Insiders initially reported that the engine would come in four basic sizes (3.0, 3.3, 3.6, and 4.0 L), each offered in various states of tune.
This Cadillac would essentially have had two 3.6L High Feature V6s attached crankshaft-to-crankshaft and would have featured high-end technologies including direct injection and cylinder deactivation. If this engine were developed, it would have displaced 7.2 liters, and produced approximately 600 hp (447 kW; 608 PS) and 540 lb⋅ft (732 N⋅m ...
Chrysler's Multi-Displacement System (MDS) is an automobile engine variable displacement technology. It debuted in 2005 on the 5.7 L modern Hemi V8.Like Mercedes-Benz's Active Cylinder Control, General Motors' Active Fuel Management, and Honda's Variable Cylinder Management, it deactivates four of the V8's cylinders when the throttle is closed or at steady speeds.
All include direct injection, cylinder deactivation, and continuously variable valve timing, either in V6 form of 4.3L or V8 form of either 5.3L or 6.2L. The trademark ECOTEC has also been used on Opel automobiles which are powered by the following engines produced by PSA PowerTrain:
Renault brands for these engines are TCe115, TCe140 and TCe160. This engine tests WLTP proof (Euro 6c). This engine is also rebranded as a Mercedes-Benz under the name "M282", adding cylinder deactivation technology. It is fitted to the following vehicles: 2018 Mercedes-Benz A-Class; 2019 Mercedes-Benz B-Class