SOLENOID TRANSMISSION HYDRAULIC MODEL METHOD

A method is disclosed for determining off-temperature accuracy information of a solenoid fluid control valve. The method comprises performing a current sweep at a first temperature, and for at least one command pressure, determining an error in a control pressure based on the current sweep. The erro...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser: SEID DAVID, NAJMOLHODA HAMID, BAJE RITCHIE WYCOCO
Format: Patent
Sprache:eng
Schlagworte:
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Beschreibung
Zusammenfassung:A method is disclosed for determining off-temperature accuracy information of a solenoid fluid control valve. The method comprises performing a current sweep at a first temperature, and for at least one command pressure, determining an error in a control pressure based on the current sweep. The error may be determined at the first temperature. A metric may then calculated based on the current sweep, and a pressure error offset may be determined for a second temperature based on the metric. The pressure error offset may describe a difference between the error in control pressure at the first temperature and an expected error in control pressure at the second temperature.