Abstract: The invention relates to a method for determining a rotational speed (nX) of a driveshaft (13) of an internal combustion engine (10) at at least one later point in time (tX), wherein the rotating driveshaft (13) assumes different rotary positions (PHI 11, PHI 12; PHI 21, PHI 22) at different times (t11, t12; t21, t22), wherein from at least two rotary positions (phi11, phi12; phi21, phi22) a past average rotary behaviour (m1; m2; mi) can be determined and from this an average rotational speed (nX) at at least one later point in time (tX) is inferred.

Abstract: The invention relates to a toothing, in particular between a starting pinion (22) and a ring gear (25) of an internal combustion engine. The toothing is designed as straight or oblique toothing and comprises a number of individual teeth (202) that mesh with one another. The thicknesses of the individual teeth (212) are asymmetrical, in particular in reduced or widened form on one or both sides.

Abstract: A switching device has an electromagnetic switching element and a controller, the switching element including two coils on one core which act on a shared armature. In order to implement an operation of the armature to be activatable as rapidly and simply as possible with low power consumption, the controller is designed to have a switch in the current path of the coil in each case to activate each coil.

Abstract: An electrical component having a core and a first and second coil positioned around the core is controlled in such a manner, that in response to the second coil being switched off, the first coil is short-circuited via a quenching circuit to quench the inductive load of the second coil.

Abstract: A method for determining a future rotational speed of a rotating drive shaft of an internal combustion engine is described, in particular while the internal combustion engine coasts after being turned off, the future rotational speed being calculated from a course of measured rotational speeds. To predict a future rotational speed of the drive shaft of the internal combustion engine as accurately as possible, instantaneous rotational speeds measured at different rotational positions of drive shaft are evaluated.

Abstract: An electrical component having a primary winding, a first field-effect transistor, configured as a switch of the primary winding, for switching the primary winding, a quench winding for quenching the inductive load of the primary winding when switching off the primary winding, and a second field-effect transistor, configured as a switch of the quench winding, for switching the quench winding. In the process, the first field-effect transistor is operated in linear operation and the second field-effect transistor is operated in linear operation or in a clock-pulsed operation between the linear operation and a switched-off state during a switching-off process of the quench winding.

Abstract: The invention relates to a method for actuating a starter device (10), wherein the starter device (10) comprises a starting pinion (22) which is to be meshed with a toothed ring (25) of an internal combustion engine (210), the internal combustion engine (210) having a drive shaft (222). The invention is characterized in that a) first a rotational speed (n, n1, n2, n3) of the drive shaft (222) is determined, b) said rotational speed (n, n1, n2, n3) is then compared to a predefined rotational speed value (nG), and c) in the case that the rotational speed (n, n1, n2, n3) is less than or equal to the predefined rotational speed value (nG), the starting pinion (22) is toed in the direction of the toothed ring (25).

Abstract: The invention relates to a method for predetermining a motion state (BZn+1) of a drive shaft (222) of an internal combustion engine (210) on the basis of previous motion states (BZn, BZn?2) of the drive shaft (222), wherein properties (tn?2, ?n?2) allocated to a first previous motion state (BZn?2) and properties (tn, ?n) allocated to a second previous motion state (BZn) are used and the drive shaft (222) assumes periodically recurring angular positions (?n?2, ?n, ?n+2; ?n?1, ?n+1). The invention is characterized in that a future motion state (BZn+1) and the properties (tn?1, ?n+1) allocated thereto of the drive shaft (222) are determined in an angular position on the basis of the first evaluated previous motion state (BZn?2) and the second evaluated previous motion state (BZn), wherein the angular position (?n+1) of the determined future motion state (BZn+1)of the drive shaft (222) is not equal to an angular position (?n?2, ?n) of the first and second previous motion state (BZn, BZn?2).

Abstract: A method for checking engagement of a pinion of a starter system with a ring gear of a drive unit to be started, including measuring a variable indicating a speed of the pinion or a speed of the drive unit to be started, and checking the engagement on the basis of the measured variable.

Abstract: A method and device for determining a starter speed of a starter of a start-stop system. At least one electrical variable of the starter is ascertained during a run-up of the starter, and the current starter speed of the starter is determined as a function of it.

Abstract: A circuit configuration for an electric machine, e.g., a starter motor for starting an internal combustion engine in a motor vehicle, includes a current limiting device for limiting a starting current of the electric machine. The circuit configuration includes a bridging device for bridging the current limiting device.

Abstract: A method is described for operating a controller for a starting apparatus for starting an internal combustion engine in a vehicle, the controller controlling an engagement apparatus, which encompasses the starting apparatus, so as to engage a starter pinion into the ring gear of an internal combustion engine, in particular using a start-stop operating strategy. In order to improve vehicle convenience by the fact that start-stop operation can be implemented with quick and reliable availability of the internal combustion engine, at least one operating parameter of the engagement apparatus is sensed and evaluated by the controller, and the controller adapts the control of the engagement apparatus to the at least one operating parameter.

Abstract: A method for setting operating states of an internal combustion engine, in particular an internal combustion engine of a hybrid drive. In addition to the internal combustion engine, the hybrid drive includes at least one electric drive, a hybrid coordinator and a control unit assigned to the internal combustion engine in which functions are implemented. The functions request operating states favorable to their running ability from the hybrid coordinator which performs a commensurate modification of the distribution of power between the internal combustion engine and the at least one electric drive.

Abstract: A double clutch for a double-clutch transmission includes a first clutch, a second clutch, a first electric actuator, and a second electric actuator. The first electric actuator acts on a cam that activates both clutches and controls a clutch shift operation between the first and the second clutch. The first electric actuator additionally acts on a cam activating one of the two clutches.

Abstract: The invention relates to a starting method for internal combustion engines in motor vehicles, comprising a start-stop system, and to a starting device (10) for carrying out said method, said starting device comprising a starter motor (11) and an insertion device (12, 20) which axially inserts a slip-on pinion (13) into a crown gear (14) of the internal combustion engine when a stop cycle begins. In order to minimize the period until the engine can be restarted, the pinion (13) is resiliently inserted into the still rotating crown gear (14) by means of a pressure spring (25) when the stop phase begins, once the internal combustion engine (15) is switched off but before it comes to a standstill and with the starter motor (11) switched off.

Abstract: A motor vehicle having a hybrid drive and a method for idle-speed control of a hybrid drive of a motor vehicle are provided. The hybrid drive includes an internal combustion engine having an engine management system, and at least one speed-controlled electric machine which is coupled to a drive shaft of the internal combustion engine during idling. During idling, the internal combustion engine is controlled by the engine management system in open or closed loop as a function of power demands of an electrical system of the motor vehicle.

Abstract: The invention relates to a dual clutch for a dual clutch transmission for transmitting a torque from a drive shaft to at least one drive shaft, which comprises a first clutch, a second clutch, and an electrical actuating device. The actuating device comprises a coupling slide, wherein a first slide of the coupling slide acts on the first clutch, and a second slide of the coupling slide acts on the second clutch, and the two slides are movable in such a way that by displacing the slides a recoupling process is controlled.

Abstract: A double clutch for a double-clutch transmission includes a first clutch, a second clutch, a first electric actuator, and a second electric actuator. The first electric actuator acts on a cam that activates both clutches and controls a clutch shift operation between the first and the second clutch. The first electric actuator additionally acts on a cam activating one of the two clutches.

Abstract: A method for setting operating states of an internal combustion engine, in particular an internal combustion engine of a hybrid drive. In addition to the internal combustion engine, the hybrid drive includes at least one electric drive, a hybrid coordinator and a control unit assigned to the internal combustion engine in which functions are implemented. The functions request operating states favorable to their running ability from the hybrid coordinator which performs a commensurate modification of the distribution of power between the internal combustion engine and the at least one electric drive.

Abstract: A method is described for adjusting a setpoint operating state of a hybrid drive in a motor vehicle, the hybrid drive including an internal combustion engine and at least two electric motors as the drive motors, and the output shafts of the drive motor being capable of being operatively connected to a drive train of the vehicle, a setpoint operating point of the hybrid drive being adjusted as a function of an instantaneous power demand (output torque) on the hybrid drive and an instantaneous electrical power demand of an electrical system of the vehicle, by determining the speeds and the torques of the drive motors. At least one of the electric motors (16) is controlled by voltage regulation and the other electric motor(s) (14) is/are controlled by speed regulation.