Abstract: A transmission device for a motor vehicle includes a multi-speed transmission; a multidisc clutch assigned to the multi-speed transmission for changing gears of the multi-speed transmission, and an actuating device for actuating the multidisc clutch, wherein the actuating device has a wedge mechanism which is operatively connected with the multidisc clutch for actuating the multidisc clutch.

Abstract: A drive device for a motor vehicle, having at least one first drive assembly, at least one second drive assembly, as well as a differential gearing. An input shaft of the differential gearing can be operatively connected to a drive shaft of the first drive assembly by way of a first gear train and to a drive shaft of the second drive assembly. The drive shaft of the second drive assembly is arranged at an offset relative to an intermediate shaft which is coaxial to the drive shaft of the first drive assembly, and is operatively connected by way of a second gear train to the intermediate shaft, and also by way of the intermediate shaft to the differential gearing.

Abstract: A drive device for a motor vehicle, having at least one first drive assembly, at least one second drive assembly, as well as a differential gearing. An input shaft of the differential gearing can be operatively connected to a drive shaft of the first drive assembly by way of a first gear train and to a drive shaft of the second drive assembly. The drive shaft of the second drive assembly is arranged at an offset relative to an intermediate shaft which is coaxial to the drive shaft of the first drive assembly, and is operatively connected by way of a second gear train to the intermediate shaft, and also by way of the intermediate shaft to the differential gearing.

Abstract: At least one electric motor is employed for propelling an electric or hybrid vehicle with a shiftable transmission. Upon reaching a shift threshold, a shift operation is performed in the transmission of the vehicle, wherein a value specifying the shift threshold is varied depending on at least one parameter. As the at least one parameter, a speed is used, at which a power provided by the at least one electric motor for propelling the vehicle has a maximum.

Abstract: In a method for operating a hybrid drive device of a motor vehicle, a speed ratio between an electric machine of the hybrid drive device and an output shaft of the hybrid drive device is reduced by a transmission, when a temperature of the electric machine exceeds a first temperature limit value.

Abstract: A method for operating an electric machine which is coupled with an output shaft of an internal combustion engine of a motor vehicle includes controlling the electric machine in dependence on at least one operating parameter of at least one of the internal combustion engine and the electric machine so that the electric machine transmits to the output shaft a compensation torque which at least partially compensates torque fluctuations of the internal combustion engine occurring during an operation of the internal combustion engine as a result of an operating phase of the internal combustion engine.

Abstract: A transmission device for a motor vehicle includes a multi-speed transmission; a multidisc clutch assigned to the multi-speed transmission for changing gears of the multi-speed transmission, and an actuating device for actuating the multidisc clutch, wherein the actuating device has a wedge mechanism which is operatively connected with the multidisc clutch for actuating the multidisc clutch.

Abstract: In a method for operating a hybrid drive device of a motor vehicle, a speed ratio between an electric machine of the hybrid drive device and an output shaft of the hybrid drive device is reduced by a transmission, when a temperature of the electric machine exceeds a first temperature limit value.

Abstract: At least one electric motor is employed for propelling an electric or hybrid vehicle with a shiftable transmission. Upon reaching a shift threshold, a shift operation is performed in the transmission of the vehicle, wherein a value specifying the shift threshold is varied depending on at least one parameter. As the at least one parameter, a speed is used, at which a power provided by the at least one electric motor for propelling the vehicle has a maximum.

Abstract: In order for the viscosity of the engine oil to be determined as directly as possible, particularly in the case of a motor vehicle with hydraulic control of the gas exchange valves, provision is made for a time period which a hydraulic component, in particular a solenoid valve, requires to move from a first position to a second position to be used as a measure of the viscosity. In particular, an electrical control signal for the solenoid valve is evaluated in the process. An additional sensor arrangement is not required. The determined viscosity is preferably actively used for controlling the gas exchange valves.

Abstract: Method for machining flat, circular disk-shaped recording media, for example, audio, video or ROM compact disks, for the purpose of improving their surface quality and their dimensional stability, employs a lathe having a driven lathe spindle (7), a vacuum chuck (8) for holding the recording medium or substrate (15, 15'. . . ) to be machined, and a carriage (9) for holding and guiding the cuting tool (5) magazine (14) hold the machined and unmachined substrates, there being further provided a robot (10) held on the base (2) or bed (4) of the lathe and having a gripper arm (11) with gripping tongs (12) movable in several planes which transport the substrates from one magazine (14) to the vacuum chuck (8) or from the vacuum chuck to the other magazine, the stacking axes (L) of the two magazines extending at an angle to the horizontal plane (E), and the magazines being maintained within the range of action of the gripper arm (11) with gripping tongs (12).

Abstract: Apparatus for the coating of substrates in a vacuum chamber is disclosed wherein a rotatable substrate holder bears a plurality of substrate receivers adapted to transport a like number of substrates (26, 26', etc.) step-wise on a circular path from one of two lock stations (8, 9) through an associated coating station (10, 11) and back to the same respective lock station.Each lock station has one transfer device comprising a rotating substrate plate bearing substrate receivers (85, 85', etc. and 86, 86', respectively). Each plate cooperates with four magazines (18, 18', etc. and 19, 19', etc., respectively). Each magazine is equipped with at least two stacks (25, 25', etc., and 27, 27', etc., respectively) of substrates (26, 26', etc.). A rotating device (28, 28', etc. and 29, 29', etc., respectively) cooperates with each of the magazines (18, 18', etc. and 19, 19', etc., respectively) and transports the substrates (26, 26', etc.) between the magazines (18, 18', etc. and 19, 19', etc.

Abstract: A device for the automatic cleaning, testing, and sorting of discoidal, flat substrates (9, 9', . . . ) for example magnetic memory plates, having three support mandrels (12, 13, 23) for the substrates (9, 9', . . . ) to be treated, three magazines (6, 7, 8) to deposit the treated and the untreated substrates (9, 9', . . . ), and having a transporting device fixed to a machine frame (2) or a machine support with several transferring arms (14, 15, 16) which can be moved on several levels and which are equipped with gripping devices (20, 21, 22) is provided with a motor-driven first support mandrel (23) rotating round its longitudinal axis (r) and with a nozzle (25, 26) disposed directly adjacent to said support mandrel in order to apply a cleaning liquid onto the substrate (9, 9', . . . ) which is firmly held by the first support mandrel.

Abstract: A lathe apparatus for machining flat, circular disk-shaped recording media, for example, audio, video or ROM compact disks, for the purpose of improving their surface quality and their dimensional stability is provided which comprises a driven lathe spindle (7), a vacuum chuck (8) for holding the recording medium or substrate (15, 15') to be machined, a carriage (9) for holding and guiding the tool (5), and magazines (14) for holding the machined and unmachined substrates. A robot (10) provided on the base (2) or bed (4) of the lathe comprises a gripper arm (11) with gripping tongs (12) movable in several planes which transports the substrates from one magazine (14) to the vacuum chuck (8) or from the vacuum chuck to the other magazine. The stacking axes (L) of the two magazines extend at an angle to the horizontal plane (E), and the magazines are maintained within the range of action of the gripper arm (11) with gripping tongs (12).