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The active shock absorber, reducing fluctuations of the engine speed of the engine

1 - a sharp change in the accelerator pedal by the driver 2 - curve of the engine speed of the engine without an active absorber	3 - curve of the engine speed of the engine with an active damper

By sharp pressing an accelerator pedal is released or the amount of injected fuel must change rapidly, which should lead to a similar rapid change in the speed of the engine crankshaft. These abrupt changes in load leads to the generation of oscillations, which are based on fluctuations in the rotational speed of the engine crankshaft.

The active shock absorber reduces these periodic fluctuations in speed of the crankshaft of the engine by changing the amount of fuel injected at a frequency corresponding to the frequency of rotation of the crankshaft of the engine: the sudden accelerator pedal is injected less fuel and release the pedal sharply - injected more fuel. This effectively reduces the instantaneous bursts of speed of the crankshaft of the engine.