Systems and methods are described for mitigating vehicle vibration through the control of a variable spring absorber that is part of a powertrain that includes the engine. In some such embodiments, an absorption frequency of the variable spring absorber is tuned in a feed forward manner based at least in part on the current engine speed and a factor indicative of the minimum repeating firing sequence cycle length associated with the current effective firing fraction (which in many implementations may be the denominator of the firing fraction).
NOISE/VIBRATION CONTROL USING VARIABLE SPRING ABSORBER
2019-08-15
Patent
Elektronische Ressource
Englisch
IPC: | B60K Anordnung oder Einbau von Antriebseinheiten oder von Kraft- bzw. Drehmomentübertragungen in Fahrzeugen , ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES / B60W CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE OR DIFFERENT FUNCTION , Gemeinsame Steuerung oder Regelung von Fahrzeug-Unteraggregaten verschiedenen Typs oder verschiedener Funktion / F02D CONTROLLING COMBUSTION ENGINES , Steuern oder Regeln von Brennkraftmaschinen / F16F SPRINGS , Federn |
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