Method for controlling an automated transmission

A method of controlling an automated transmission for a motor vehicle comprising a least one pressure activated positioning cylinder (6, 8, 20), having assigned shift valves (10, 12), at least one main cut-off valve (4) which is positioned before to the shift valves, and a control device for controlling the shift valves and the at least one main cut-off valve, the method comprising the steps of:

• determining a pressure request for shifting;
• triggering the at least one main cut-off valve depending on the determining pressure request;
• determining, for different shift scenarios of a shift transmission, a nominal pressure or a nominal pressure pattern, respectively, of the shift valves (10, 12) by consideration of at least one of the following criteria:
• a mass to be synchronized with regard to a synchronous rotation speed which needs to be adjusted;
• a desired variable nominal pressure over a synchronization pattern;
• a condition of a tooth-on-tooth position of two gear wheels;
• a shifting of a gear step into neutral;
• a piston position in a respective positioning cylinder;
• a desired piston speed in the positioning cylinder;
• a desired piston acceleration in the positioning cylinder;
• a respective gear step which needs to be shifted;
• and
• a requirement of substitution functions during problems with nominal functions;
• operating the at least one main cut-off valve (4) in accordance with the nominal pressure or the nominal pressure pattern;
• and
• overlaying the criteria with at least one of the respective nominal pressure or the nominal pressure pattern, respectively, so as to result in a total nominal pressure.