Patent ID: 6106427
Filing Date: 2000-08-22
Classification: F16H,Y10T

Abstract:
A process for control of a continuously variable transmission comprising:providing a hydrostatic transmission having a swash plate,providing a summarizing transmission,providing a multi-stage gear clutch with hydraulically actuatable force-locking shift elements (11-14),providing a control unit,adding together a mechanical power branch and an electronically controlled hydraulic power branch adjustable by a swash plate (7) in said summarizing transmission,using said control unit to control said shift elements (11-14) and said hydrostatic transmission, whereinsaid control unit triggering, prior to reaching in said transmission the shift or synchronizer speed needed for a shift point, a shift signal to shift said force-locking shift elements (11-14) so that the actual shift point falls directly on the moment at which the synchronizer speed for a shift is reached.