Gearbox

A method of controlling a shifting process of a gearbox, the gearbox having a start-up clutch, at least one power shift clutch, shift clutches for shifting various transmissions of the gearbox and a control unit for controlling an actuation of at least one clutch selected from the group consisting of the start-up clutch, the at least one power shift clutch and the shift clutches, the method comprising the step of:

• controlling a third torque which is adjustable by means of the at least one power shift clutch by means of the control unit;
• wherein the controlling of the third torque is performed by means of a torque control and a subsequent rotational speed control.

A controller for a gearbox, the gearbox having a start-up clutch, at least one power shift clutch and shift clutches for shifting various transmissions of the gearbox, wherein the at least one clutch selected from the group consisting of the start-up clutch, the power shift clutch and the shift clutches has a first coefficient of friction, the controller comprising

• a controlling unit;
• wherein the controlling unit adapts the first coefficient of friction of the at least one clutch selected from the group consisting of the start-up clutch, the power shift clutch and the shift clutches during operation of the gearbox.

A controller, wherein the controller is adapted for controlling a shifting process in a gearbox, the gearbox having at least one power shift clutch, the controller comprising:

• a control unit;
• wherein the control unit controls a third torque which is adjustable by means of the at least one power shift clutch by means of a torque control and a subsequent rotational speed control.

A microprocessor memory for a control unit, wherein the control unit controls a gearbox, the gearbox having a start-up clutch, at least one power shift clutch, shift clutches for shifting various transmissions of the gearbox and a control unit for controlling an actuation of at least one clutch selected from the group consisting of the start-up clutch, the at least one power shift clutch and the shift clutches, wherein the microprocessor memory is encoded with executable instructions for performing the following step when executed on the microprocessor:

• adapting a first coefficient of friction of the at least one clutch selected from the group consisting of the start-up clutch, the power shift clutch and the shift clutches during operation of the gearbox.

A microprocessor memory for a control unit, wherein the control unit controls a gearbox, the gearbox having a start-up clutch, at least one power shift clutch, shift clutches for shifting various transmissions of the gearbox and a control unit for controlling an actuation of at least one clutch selected from the group consisting of the start-up clutch, the at least one power shift clutch and the shift clutches, wherein the microprocessor memory is encoded with executable instructions for performing the following step when executed on the microprocessor:

• controlling a third torque which is adjustable by means of the at least one power shift clutch;
• wherein the controlling of the third torque is performed by means of a torque control and a subsequent rotational speed control.

A method of regulating the operation—including shifting into any one of a plurality of different speeds—of a multispeed gearbox associated with first clutch means including a start-up clutch, second clutch means including at least one power shift clutch, third clutch means including clutches for shifting into selected speeds, and a unit for controlling the actuation of at least one of said clutch means, comprising the step of adapting a coefficient of friction of said at least one clutch means by way of said control unit during operation of the gearbox.

A method of regulating at least one of the undertakings including shifting a multispeed gearbox into a selected one of a plurality of speeds and shifting from one into another speed, the gearbox being associated with first clutch means including a start-up clutch, second clutch means including at least one power shift clutch, third clutch means including clutches for shifting into selected speeds, and a unit for controlling the actuation of at least one of said clutch means, comprising the step of effecting the selection of torque transmittable by said second clutch means by regulating the torque and by thereupon regulating the RPM.