Temperature compensation method for an air suspension after engine shut-off

A method for temperature compensating an air spring of an air spring suspension of a motor vehicle after engine shut-off. A desired trim height is obtained. At engine shut-off, the ambient temperature is measured and the temperature of air in the air spring determined. After a wait time (for loading...

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Bibliographische Detailangaben
Hauptverfasser:	MOSHCHUK NIKOLAI K, CUI JOHN X, DARAB JONATHAN, LI YUNJUN, OPITECK STEVEN A
Format:	Patent
Sprache:	eng
Schlagworte:	CALCULATING COMPUTING COUNTING ELECTRIC DIGITAL DATA PROCESSING PERFORMING OPERATIONS PHYSICS TRANSPORTING VEHICLE SUSPENSION ARRANGEMENTS VEHICLES IN GENERAL
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Beschreibung
Zusammenfassung:	A method for temperature compensating an air spring of an air spring suspension of a motor vehicle after engine shut-off. A desired trim height is obtained. At engine shut-off, the ambient temperature is measured and the temperature of air in the air spring determined. After a wait time (for loading/unloading), a start trim height is measured. A predicted trim height is determined for when the air in the air spring is at the ambient temperature. Finally, the volume of the air in the air spring is selectively adjusted so that when the air in the air spring arrives at the ambient temperature, the trim height will be about the desired trim height.