- Active Cylinder Control
Daimler AG's Active Cylinder Control (ACC) is a variable displacementtechnology. It debuted in 2001on the 5.8 L V12in the CL600 and S600. Like Chrysler's later Multi-Displacement System, General Motors' Active Fuel Managementand Honda's Variable Cylinder Management, it deactivates one bank of the engine's cylinders when the throttle is closed.
In order to preserve the sound of the engines, DaimlerChrysler worked with Eberspaecher to design a special
exhaust systemfor ACC-equipped vehicles. The system uses an active valve to divert exhaust between two different exhaust systems. It also has a variable length intake manifoldsystem to optimize output in the two modes.
Chrysler's Multi-Displacement System(MDS)
* General Motors'
Active Fuel Management(AFM)
Honda's Variable Cylinder Management(VCM)
* [http://waw.wardsauto.com/ar/auto_new_wheels_9 Ward's article]
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