Dual pressure pressure regulator

摘要: An auxiliary transmission section (14) shift control system (230)/method is provided which includes a member (234) to prevent synchronized clutch (92, 128) damage if the main (12) engaged during an shift. Upon sensing engagement into high-speed ratio, force used engage high speed ratio reduced from first considerably lower second level by reducing pressurization of actuating pressurized fluid. To accomplish this, dual pressure regulator assembly utilized.