ACTIVE VIBRATION/NOISE SUPPRESSING DEVICE

PROBLEM TO BE SOLVED: To provide an active vibration/noise suppressing device using a physical amount such as a torque fluctuation, which is not affected by a measurement dispersion, for properly changing an upper limit value of an absolute value for a control signal in adaptation control.SOLUTION:...

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Bibliographische Detailangaben
Hauptverfasser:	SAWADA TOMOYUKI, ICHIKAWA HIROYUKI, SUGITA NAOKI, YUDA KOJI, YASUDA YASUNOBU, KATO HIROAKI
Format:	Patent
Sprache:	eng
Schlagworte:	ACOUSTICS ACOUSTICS NOT OTHERWISE PROVIDED FOR BLASTING ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVEFUNCTIONING OF MACHINES OR INSTALLATIONS HEATING LIGHTING MEANS FOR DAMPING VIBRATION MECHANICAL ENGINEERING METHODS OR DEVICES FOR PROTECTING AGAINST, OR FOR DAMPING,NOISE OR OTHER ACOUSTIC WAVES IN GENERAL MUSICAL INSTRUMENTS PERFORMING OPERATIONS PHYSICS SHOCK-ABSORBERS SOUND-PRODUCING DEVICES SPRINGS THERMAL INSULATION IN GENERAL TRANSPORTING VEHICLES IN GENERAL VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISEPROVIDED FOR WEAPONS
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Beschreibung
Zusammenfassung:	PROBLEM TO BE SOLVED: To provide an active vibration/noise suppressing device using a physical amount such as a torque fluctuation, which is not affected by a measurement dispersion, for properly changing an upper limit value of an absolute value for a control signal in adaptation control.SOLUTION: A fuel consumption acquisition unit 120 acquires a fuel consumption using a unit time longer than the cycle of vibration or noises generated by an engine 10, as an acquisition cycle. An upper limit value change-over unit 130 changes over the upper limit value for limiting the absolute value for the control signal, based on the fuel consumption and the frequency of the vibration or noises generated by the engine 10. A control signal generation unit 140 generates the control signal limited by the upper limit value changed over by the upper limit value change-over unit 130, as an upper limit.