Dynamic pressure control system with solenoid valve command current trimming

A dynamic pressure control system, such as a transmission pressure control system, is provided wherein one or more of electrical current command signals provided to a pressure control solenoid valve, such as a fast response variable force solenoid pressure control valve, are progressively trimmed in...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser:	SEID DAVID L, NAJMOLHODA HAMID
Format:	Patent
Sprache:	eng
Schlagworte:	BLASTING BRAKES CALCULATING CLUTCHES COMPUTING COUNTING COUPLINGS FOR TRANSMITTING ROTATION ELECTRIC DIGITAL DATA PROCESSING ENGINEERING ELEMENTS AND UNITS GEARING GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVEFUNCTIONING OF MACHINES OR INSTALLATIONS HEATING LIGHTING MECHANICAL ENGINEERING PHYSICS THERMAL INSULATION IN GENERAL WEAPONS
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Beschreibung
Zusammenfassung:	A dynamic pressure control system, such as a transmission pressure control system, is provided wherein one or more of electrical current command signals provided to a pressure control solenoid valve, such as a fast response variable force solenoid pressure control valve, are progressively trimmed in a manner to improve overall system pressure control performance by improving the overall commanded current response. The invention permits use of fast response pressure control solenoid valves and obtainment of in a manner to minimize overshoot and improve steady state accuracy, so as to thereby improve precision pressure control.