Abstract: The present invention relates to a method for resolving a tooth-on-tooth position of a positive-locking shifting element of an automated manual transmission, in which gear steps of the automated manual transmission are changed by means of a pressure-medium-actuated shift actuator. If, during a change of a gear step of the automated manual transmission, a tooth-on-tooth position occurs at the interlocking shifting element, then the control of the pressure-medium-actuated shift actuator is varied in such manner as to resolve the tooth-on-tooth position. A control unit for carrying out the method is also disclosed.

Abstract: A method for operating a pneumatic actuating system of a transmission. The actuating system has an air reservoir at a first pressure. The reservoir couples an actuating space of the actuating system which is at a second pressure, and the actuating space couples, via control valves, shifting cylinders. When conducting a transmission gearshift, an air mass delivered to the active shifting cylinders via corresponding control valves, and an air mass sum including a nominal air mass in the active cylinders required for accomplishing the gearshift and an actual basic leakage from the activated shifting cylinder are determined. A defect leak in the pneumatic actuating system is recognized, if the air mass delivered to the active shifting cylinders is larger than the air mass sum. If a defect leak is recognized, the control valves coupling the actuating space and the shifting cylinders are shut off for a period of time.

Abstract: A method for operating a pneumatic actuating system of a transmission. The actuating system has an air reservoir at a first pressure. The reservoir couples an actuating space of the actuating system which is at a second pressure, and the actuating space couples, via control valves, shifting cylinders. When conducting a transmission gearshift, an air mass delivered to the active shifting cylinders via corresponding control valves, and an air mass sum including a nominal air mass in the active cylinders required for accomplishing the gearshift and an actual basic leakage from the activated shifting cylinder are determined. A defect leak in the pneumatic actuating system is recognized, if the air mass delivered to the active shifting cylinders is larger than the air mass sum. If a defect leak is recognized, the control valves coupling the actuating space and the shifting cylinders are shut off for a period of time.

Abstract: A method for determining an operating force (Fp) of a positioning actuator (3), whose adjustment movements are produced by virtue of an appropriate supply of a working medium via actuating at least one valve (4 to 7) associated with the positioning actuator (3). The operating force (Fp) is determined by computational determination. To be able to carry out the computational determination of the operating force (Fp) with little effort, by the at least one valve (4 to 7) in each case, a respective, essentially constant mass flow ({dot over (m)}iv, {dot over (m)}ov) of working medium is maintained either into the positioning actuator (3) and/or out of the positioning actuator (3).

Abstract: A method for determining an operating force (Fp) of a positioning actuator (3), whose adjustment movements are produced by virtue of an appropriate supply of a working medium via actuating at least one valve (4 to 7) associated with the positioning actuator (3). The operating force (Fp) is determined by computational determination. To be able to carry out the computational determination of the operating force (Fp) with little effort, by the at least one valve (4 to 7) in each case, a respective, essentially constant mass flow ({dot over (m)}iv, {dot over (m)}ov) of working medium is maintained either into the positioning actuator (3) and/or out of the positioning actuator (3).