Method and apparatus for reducing vibrations of car body

Details Method and apparatus for reducing vibrations of car body Method and apparatus for reducing vibrations of car body

1991-01-28

1992-05-05

Kamen, Noah P.

Internal-combustion engines

Vibration compensating device

F02B 7506

Patent

active

051098156

ABSTRACT:
A method of reducing vibrations of a car body comprises a step of detection of rough which is irregular combustion in an engine, preferably through monitoring of angular velocity of a crankshaft of the engine, and a step of exerting such external force as will cancel roll vibrations of the engine caused by the rough on an engine block of the engine temporarily after the occurrence of the rough. A magnitude of the force and timing of exerting the force is preferably determined on the basis of a degree of the rough and the angular velocity immediately before the occurrence of the rough.

REFERENCES:
patent: 4699097 (1987-10-01), Tanaka et al.
patent: 4922869 (1990-05-01), Kadomukai et al.

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