Abstract: A method for operating a drive-train of a vehicle, such as a municipal or agricultural utility vehicle, having at least one drive machine, a vehicle transmission with at least two gears, at least one drive axle and at least one auxiliary power take-off. The method includes controlling or regulating a supply of normal power from the drive machine as a function of a normal torque characteristic. Depending on the operating situation, supplying additional power to the at least one drive axle and/or to the at least one auxiliary power take-off. The supplied additional power is controlled or regulated as a function of operating situation dependent torque characteristics which are called up as a function of the selected gear at the time.

Abstract: A method for operating a drive-train (1) of a vehicle, in particular a municipal or agricultural utility vehicle, which has at least one drive machine (2), a vehicle transmission (3) with at least two gears, at least one driven axle (8) and at least one power take-off (10). A normal power level is supplied by the drive machine (2), which is controlled or regulated in accordance with a normal torque characteristic curve (18). An operating-situation-dependent manner additional power can be supplied to the at least one driven axle (8) and/or to the at least one power take-off (10). The additional power supplied is controlled or regulated in accordance with operating-situation-dependent torque characteristic curves (18, 19a to 19d, 20a to 20d) which are called up as a function of the gear selected at the time.

Abstract: A method for operating a drive-train of a vehicle, such as a municipal or agricultural utility vehicle, having at least one drive machine, a vehicle transmission with at least two gears, at least one drive axle and at least one auxiliary power take-off. The method includes controlling or regulating a supply of normal power from the drive machine as a function of a normal torque characteristic. Depending on the operating situation, supplying additional power to the at least one drive axle and/or to the at least one auxiliary power take-off. The supplied additional power is controlled or regulated as a function of operating situation dependent torque characteristics which are called up as a function of the selected gear at the time.

Abstract: A method for operating a drive train of a motor vehicle in an inclined position, in particular an agricultural or municipal utility vehicle. A connection between a prime mover and at least one drive axle of the motor vehicle is automatically disconnected as part of a function upon actuation of a service brake for stopping the motor vehicle monitored by at least one sensor. To avoid uncontrolled backward rolling, provision is made that a maximum brake pressure applied to achieve or maintain the standstill of the motor vehicle is determined and monitored by continually measuring a brake pressure applied by the service brake. Upon the brake pressure falling below the maximum brake pressure minus a pre-definable pressure difference, the function is automatically deactivated and thus the connection is automatically re-established between the prime mover and the at least one drive axle.

Abstract: A method of operating a drive-train (1) of a motor vehicle, in particular an agricultural or municipal utility vehicle, having a drive engine (2), a motor vehicle transmission (4) and at least one drive axle (6). A connection between the drive engine (2) and the at least one drive axle (6) of the motor vehicle is separate automatically by way of a function, and a service brake (11) of the motor vehicle has to be actuated for activation of the function. To ensure an appropriate starting gear selection in various operating situations, during the course of the function triggered by a braking process, a brake pressure (pBrems), applied during the process, is determined and a starting gear is automatically determined as a function of the brake pressure (pBrems).

Abstract: A method for operating a drive train of a motor vehicle in an inclined position, in particular an agricultural or municipal utility vehicle. A connection between a prime mover and at least one drive axle of the motor vehicle is automatically disconnected as part of a function upon actuation of a service brake for stopping the motor vehicle monitored by at least one sensor. To avoid uncontrolled backward rolling, provision is made that a maximum brake pressure applied to achieve or maintain the standstill of the motor vehicle is determined and monitored by continually measuring a brake pressure applied by the service brake. Upon the brake pressure falling below the maximum brake pressure minus a pre-definable pressure difference, the function is automatically deactivated and thus the connection is automatically re-established between the prime mover and the at least one drive axle.

Abstract: A method of operating a drive-train of a vehicle having a drive engine, a motor vehicle transmission, at least one drive axle and a further axle that can be engaged to drive. In context of a function, a connection between the drive engine and the at least one drive axle of the vehicle is automatically interrupted, and the function is automatically activated when certain conditions exist. For the activation of the function, a service brake of the vehicle must be actuated and, as a condition, the vehicle must be stopped. To check whether operation of the vehicle in the all-wheel mode is necessary, when the function is carried out, a brake pressure is determined and, if the brake pressure exceeds a brake pressure limit value, the driving engagement of the further axle is carried out automatically as the function is deactivated for re-starting the vehicle.

Abstract: A method for starting a vehicle having a start-stop system, a bake pedal for braking, a pressure controlled clutch, an accelerator for setting an engine speed, and a control unit for controlling engine operation. The method including detecting brake release after a start-stop process; determining the clutch pressure; determining a required torque from the determined pressure based on a stored pressure-torque characteristic; determining the necessary engine speed requirement from the determined required torque based on a stored characteristic engine torque curve; inquiring whether the necessary speed requirement exceeds the available torque at the current engine speed; if not, then the engine speed is not increased; if so, inquiring whether the necessary speed requirement exceeds the accelerator requested speed; if not, increasing the engine speed with the engine control unit to the determined speed requirement; and if so, increasing the engine speed to the maximum set at the accelerator.

Abstract: A method of operating a drive-train (1) of a motor vehicle, in particular an agricultural or municipal utility vehicle, having a drive engine (2), a motor vehicle transmission (4) and at least one drive axle (6). A connection between the drive engine (2) and the at least one drive axle (6) of the motor vehicle is separate automatically by way of a function, and a service brake (11) of the motor vehicle has to be actuated for activation of the function. To ensure an appropriate starting gear selection in various operating situations, during the course of the function triggered by a braking process, a brake pressure (pBrems), applied during the process, is determined and a starting gear is automatically determined as a function of the brake pressure (pBrems).