Patent ID: 7430936

Claim:
A method for controlling operational sequencing in an automatic transmission ( 102 ) of an auxiliary design, with at least one input drive shaft ( 110 ) and at least one output drive shaft ( 112 ), and including on the input and the output drive shafts ( 110 , 112 ) rotationally supported idler gears ( 130 , 132 ) and fixed gears which serve for formation of gear stages when meshed with one another in tooth engagement, with at least one sliding collar ( 126 ) which is axially slidable and fixed to a transmission shaft ( 128 ), adjacent at least one idler gear ( 130 , 132 ) and can be axially movable toward the idler gear ( 130 , 132 ) by an actuator apparatus ( 118 , 120 , 122 ) so that a toothing engagement of the sliding collar ( 126 ) with a come-along toothing of the idler gear ( 130 , 132 ) meshes, control of the actuator apparatus ( 118 , 120 , 122 ) for moving the sliding collar ( 126 ) is effected by a regulating component of a control center ( 136 ), control action being based on data from sensor information regarding an operational state of the transmission ( 102 ), and by which tooth-to-tooth positioning between toothing of the sliding collar ( 126 ) and the come-along toothing of the idler ( 130 , 132 ) is thereby released, so that the toothing of the sliding collar ( 126 ) and the come-along toothing of the idler ( 130 , 132 ) reference one another, the method comprising the steps of: providing the transmission ( 102 ) with a piston distance instrument ( 3 ) for determining a position of a shifting piston ( 2 ), during a shifting procedure, and coupling the piston distance instrument ( 3 ) to the control center ( 136 ) for providing sensed information thereto; providing the transmission ( 102 ) with at least one other sensor ( 15 , 16 , 17 , 18 ) and coupling the at least one other sensor ( 15 , 16 , 17 , 18 ) to the control center ( 136 )) for providing sensed information thereto, wherein the at least one other sensor ( 15 , 16 , 17 , 18 ) is one of an air noise sensor and a bodily noise sensor; and controlling an activation motion of the actuator apparatus ( 118 , 120 , 122 ), during the operational sequencing of the automatic transmission ( 102 ), based upon sensed information received from both the piston distance instrument ( 3 ) and the at least one sensor ( 15 , 16 , 17 , 18 ) so as to minimize an impact force and impact noise of transmission parts, involved in the shifting procedure, upon other transmission parts, whereby shifting noise and mechanical stressing of the transmission parts involved during the shifting procedure are minimized.