Importance

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Abstract

Within the scope of the method for adjusting the ratio value for a continuously variable transmission having a variator, a minimum contact pressure force P.sub.1,min, and/or P.sub.2,min is continuously calculated for the two variator discs on the basis of the actual ratio and of the actual torque to be transmitted and according to the calculated contact pressure minimum force the primary or the secondary disc is determined as controlled variable to be used for the variator ratio, the controlled variable being determined by a comparison of the required pressure values P.sub.1,soll or P.sub.2,soll with the calculated contact-pressure minimum value in a manner such that if P.sub.1,soll.ltoreq.P.sub.1,min, the controlled variable changes from the primary to the secondary side and if the condition P.sub.2,soll.ltoreq.P.sub.2,min is fulfilled, the secondary side changes to the primary side, the primary side being the controlled variable at the start of the method.

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First Claim