Rückschaltsteuerungsstrategie für ein stufenloses Getriebe zur Minimalisierung des Schlupfes an der Triebscheibe

摘要

New methods for controlling an automotive continuously variable transmission (CVT) during downshifting such that chain-belt slippage will not occur. The relationship between the primary and secondary sheave forces is used to predict and control the primary force so that the primary clamping force is sufficient to prevent slippage.