An electronic CVT controller is presented which yields an accurate rate of change for the CVT ratio and maintains the clamping pressures at a safe minimal level. The rate of change of CVT ratio is closed-loop controlled through the oil flow into a hydraulic cylinder. A Kalman filter is employed to provide noise free estimates of the realized oil flow. The clamping pressures are controlled by an adaptive system which yields a stable and accurate response during all operating conditions. The controller has been verified by various test-rig experiments and is proven adequate for use in a flywheel-hybrid vehicle transmission.
Electronic control of a CVT for a flywheel hybrid vehicle transmission
Elektronische Regelung eines stufenlosen Hybridgetriebes mit Schwungrad
1993
8 Seiten, 8 Bilder, 5 Quellen
Conference paper
English
Electronic control of a CVT for a flywheel-hybrid vehicle transmission
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