Abstract: A method for determining a motor vehicle mass which is implemented in conjunction with shifting an automated shift transmission from a current gear to a desired gear. In determining the mass, a value force and movement parameters are determined partly before or after the shift operation and partly during it. For the more rapid and accurate determination of mass, the drive-wheel-related traction force of the drive engine before and after the shift F_zug_vor, F_zug_nach, the longitudinal acceleration of the vehicle before and after the shift, a_zug_vor, a_zug_nach, and the acceleration a_roll determined in the traction-force-free phase during the shift are determined, and from these and in accordance with the equation m=F_zug/(a_zug?a_roll), a first mass value m_vor=F_zug_vor/(a_zug_vor?a_roll) is calculated for the beginning of the shift and a second mass value m_nach=F_zug_nach/(a_zug_nach?a_roll) is calculated for the end of the shift.

Abstract: A method of controlling an automatic transmission arranged in a vehicle between a drive motor and an axle drive of a drive axle or a transfer box such that the current road inclination is determined and, after driving onto a downhill stretch of road, to increase a braking action of the drive motor and/or a permanent brake, a shift to a lower gear is carried out and after a transition to a traction operation or after driving onto level ground, a shift to a higher gear is carried out. To improve transmission shifting behavior, when transitioning between a downhill stretch and level ground, it is provided that a function for detecting a downhill run-out is started and if a downhill run-out is detected, and a shift to a higher gear is carried out while still in a thrust operation before driving onto the level ground and/or before the transition to traction operation.

Abstract: A method of controlling an automated multi-step change-speed transmission of a vehicle having an electronic control unit connected to sensors for detecting operating parameters and to gear and/or clutch control elements for carrying out shift operations. The control comprises a data memory such that the multi-step change-speed transmission can be operated automatically to initiate gearshifts in an automatic mode, manually initiated by a driver in a manual mode to provide gearshifts, and manually actuated in a learning mode in which gearshifts and operating parameters can be recorded automatically. When necessary to assist technicians in the application of the transmission, a configuration-learning mode that can be activated in which, during a test drive with manual gearshift initiation, operating parameters are automatically detected in an event-dependent manner, processed to produce control data for the transmission, and the control data stored in the data memory for the future control of the transmission.

Abstract: A method and device for provisionally determining the mass of a vehicle when it is initialized. After initialization of the vehicle, the method determines a vehicle mass value by a static mass determination method and then checks whether this value is within a predetermined tolerance band around the dynamically last-determined vehicle mass value, which has been stored for that purpose. If this is so, and there has in the meantime been no significant change of the vehicle's mass, the previously stored dynamic vehicle mass value is probably more accurate and is used in the determination. Otherwise it can be assumed that the vehicle mass value has changed substantially, and the statically determined vehicle mass value is therefore used until a device for the dynamic determination of a vehicle mass can supply a more accurate vehicle mass value after a short time.

Abstract: A method for determining the driving resistance of a motor vehicle simultaneously with a shift of an automated shift transmission from a load gear to a target gear such that if a difference between a first driving resistance value F_fw_1 and a second driving resistance value F_fw_2 is large, the shift operation can be corrected. The second driving resistance value F_fw_2 is determined during the shift operation. a time interval ?t which contains the traction-force-free phase of the shift, a plurality of acceleration values a_i of the motor vehicle are measured to obtain the minimum acceleration a_min if the shift operation is a traction shift or the maximum acceleration a_max if it is thrust shift. With the mass m of the vehicle, the second driving resistance value F_fw_2 is calculated with one of the formula F_fw_2=?m*a_min or F_fw_2=?m*a_max.

Abstract: A method for determining a motor vehicle mass which is implemented in conjunction with shifting an automated shift transmission from a current gear to a desired gear. In determining the mass, a value force and movement parameters are determined partly before or after the shift operation and partly during it. For the more rapid and accurate determination of mass, the drive-wheel-related traction force of the drive engine before and after the shift F_zug_vor, F_zug_nach, the longitudinal acceleration of the vehicle before and after the shift, a_zug_vor, a_zug_nach, and the acceleration a_roll determined in the traction-force-free phase during the shift are determined, and from these and in accordance with the equation m=F_zug/(a_zug?a_roll), a first mass value m_vor=F_zug_vor/(a_zug_vor?a_roll) is calculated for the beginning of the shift and a second mass value m_nach=F_zug_nach/(a_zug_nach?a_roll) is calculated for the end of the shift.

Abstract: A seal of an electric machine installed within a motor vehicle drive mechanism with of one of a wet-running oil-cooled disk gearshift element, a multiple disk clutch and a multiple disk brake being accommodated within a free space of a rotor of the electric machine. An oil free annular gap (3) is formed between the rotor (2) and the stator (1) of the electric machine and the annular gap (3) has a seal (9) which, at a high rate of rotation by the rotor (2) and depending on the type of gap seal, seals without touching.

Abstract: A relatively abrasion-free seal for an electric motor that is inserted within the motor vehicle drive mechanism (6) to an electric motor rotor located within the free construction space (4) of the wet-running electric machine rotor (2) or oil-cooled gearshift element of a multiple disk clutch (5) with which the very highest possible degree of an oil free annular gap (3) between the rotor (2) and the stator (1) of an electric machine is provided essentially in that the face side of the annular gap (3) is designed to have a seal (9) which, at a high rate of revolutions by the rotor (2) and depending on the type of gap seal, has been built to seal without touching.