Abstract: A computer-implemented method for making executable specifications in the system development and/or the system validation of a functional system for a target device for a motor vehicle. The method includes: providing a function system including at least one model view of the one or multiple functions for controlling or regulating a target device; providing a selection interface configured for selecting and changing a system part in a provided first model view by a user; transferring and displaying the system part selected and/or changed in the first model view in another model view for the user; providing a specification-and-approval interface designed for selecting and/or checking and/or further adapting the displayed system parts or changes in the other model view and for approving the changes to the system made in the first and/or in the other model view by the user; adopting in an automated manner the approved changes.

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: 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: The invention relates to a method for meshing a starter pinion (19) of a starting device (16) into a ring gear (13) of an internal combustion engine (10). The internal combustion engine (10) has a driveshaft (22), and the starting device (16) has a starter motor (25), said driveshaft (22) having a variable rotational speed (n). The internal combustion engine (10) is switched off in a method step (S1), and the starter pinion (19), which is not being rotationally driven by the starter motor (25), is then advanced in the direction of the ring gear (13) by a toe-in actuator (28) by means of a toe-in force (FV) in a method step (S2) until the starter pinion contacts the ring gear. A meshing force (FE) is then exerted onto the starter pinion (19) in a controlled manner in an additional method step (S3) in order to mesh the starter pinion (19) into a tooth gap (34) of the ring gear (13).

Abstract: A method and device for activating a starter, which is controllable by a driver unit, for an internal combustion engine of a motor vehicle. A method for activating a starter, which is controllable by a driver unit, for an internal combustion engine of a motor vehicle, the driver unit being controllable by a control unit with the aid of at least one activation line, a switch, which is controllable by the control unit, being situated between the driver unit and a supply unit coupled to a supply voltage, the starter being activated with the aid of the control unit and the switch in the case of failure of the at least one activation line and/or at least one part of the driver unit.

Abstract: Method for predicting a rotational speed (n) of a drive shaft (16) in an internal combustion engine (13), wherein a past rotational speed (n) of the drive shaft (16) is determined, characterized in that in order to determine a theoretical rotational speed (nT1, nT2) of the drive shaft (16) at a future point in time (tT1, tT2), the change in the rotational speed (n) between two past events (P01, P11; P02, P12) occurring at different times is used, one rotational speed (n01, n11; n02, n12) and one point in time (t01, t11; t02, t12) being assigned to each event, wherein one point in time (t01, t02) is an earlier point in time and the other is a later point in time (t02, t12), which therefore lies before the predicted point in time (tT1, tT2), wherein a gradient (m) is determined for a period between the two events (P01, P11; P02, P12) and is used as the basis for deducing a theoretical future rotational speed (nT1, nT2) at the future point in time (tT1, tT2), such that in order to determine the theoretical rotat

Abstract: A method for detecting rotational speeds (n) of an internal combustion engine having a signal wheel having marks (M1 through M7) for signaling on a crankshaft of the internal combustion engine is described. The marks (M1 through M7) on the signal wheel are detected with the aid of a sensor and evaluated by a detection and evaluation device. To implement high-precision detection of a rotational speed, the rotational speeds (n) are evaluated using a sector section of approximately 6° to 35° to increase the accuracy on the basis of a reduced sector section of the signal wheel.

Abstract: A method determines a rotational speed of a driveshaft of an internal combustion engine. The rotating driveshaft assumes different rotary positions at different times. An average gradient of rotary speed for the driveshaft is determined at at least two rotary positions. Subsequently, an average rotational speed for the driveshaft is obtained from a past average gradient of rotary speed at at least one later point in time.

Abstract: The invention relates to a method for meshing a starter pinion (19) of a starting device (16) into a ring gear (13) of an internal combustion engine (10). The internal combustion engine (10) has a driveshaft (22), and the starting device (16) has a starter motor (25), said driveshaft (22) having a variable rotational speed (n). The internal combustion engine (10) is switched off in a method step (S1), and the starter pinion (19), which is not being rotationally driven by the starter motor (25), is then advanced in the direction of the ring gear (13) by a toe-in actuator (28) by means of a toe-in force (FV) in a method step (S2) until the starter pinion contacts the ring gear. A meshing force (FE) is then exerted onto the starter pinion (19) in a controlled manner in an additional method step (S3) in order to mesh the starter pinion (19) into a tooth gap (34) of the ring gear (13).

Abstract: Method for predicting a rotational speed (n) of a drive shaft (16) in an internal combustion engine (13), wherein a past rotational speed (n) of the drive shaft (16) is determined, characterised in that in order to determine a theoretical rotational speed (nT1, nT2) of the drive shaft (16) at a future point in time (tT1, tT2), the change in the rotational speed (n) between two past events (P01, P11; P02, P12) occurring at different times is used, one rotational speed (n01, n11; n02, n12) and one point in time (t01, t11; t02, t12) being assigned to each event, wherein one point in time (t01, t02) is an earlier point in time and the other is a later point in time (t02, t12), which therefore lies before the predicted point in time (tT1, tT2), wherein a gradient (m) is determined for a period between the two events (P01, P11; P02, P12) and is used as the basis for deducing a theoretical future rotational speed (nT1, nT2) at the future point in time (tT1, tT2), such that in order to determine the theoretical rotat

Abstract: The invention relates to a starter (100), to a device for starting a starter motor, to a device for detecting an engaged state of a starter pinion, to a method for starting a starter motor, to a method for detecting an engaged state of a pinion (101) in a corresponding gearwheel, to a computer program and to a computer program product, wherein the method for detecting an engaged state of a pinion (101) in a corresponding gearwheel, in particular an engaged state of a starter pinion in a gear rim of a starter (100), comprises applying a current to a starter relay (110) for switching the pinion (101) and detecting at least one current flow parameter of the current flow, wherein the detected current flow parameter is set in relation to potential pinion positions and a pinion position associated with the detected current flow parameter is selected and is thus detected.

Abstract: A method is described for supplying a rail pressure sufficient for a restart of a common rail internal combustion engine. The internal combustion engine is operated in a start/stop operation in which the internal combustion engine is stopped in response to a stop request and is started up again in response to a subsequent start request. The rail pressure is reduced by a presettable amount after a start request.

Abstract: In a method for controlling a start/stop operation of an internal combustion engine in a motor vehicle, the controller activates a starting device which has a starter motor and a meshing device for the purpose of starting the internal combustion engine and of executing a start/stop operation, the rotational speed and position of a crankshaft of the internal combustion engine being detected with the aid of a detector device. To provide vehicle comfort in start/stop mode and to implement meshing of a starter pinion with the ring gear at a coasting rotational speed at reduced noise and wear, a point in time is determined for meshing with the ring gear of a coasting internal combustion engine after the internal combustion engine has been shut down.

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 and device for activating a starter, which is controllable by a driver unit, for an internal combustion engine of a motor vehicle. A method for activating a starter, which is controllable by a driver unit, for an internal combustion engine of a motor vehicle, the driver unit being controllable by a control unit with the aid of at least one activation line, a switch, which is controllable by the control unit, being situated between the driver unit and a supply unit coupled to a supply voltage, the starter being activated with the aid of the control unit and the switch in the case of failure of the at least one activation line and/or at least one part of the driver unit.

Abstract: A method for detecting rotational speeds (n) of an internal combustion engine having a signal wheel having marks (M1 through M7) for signaling on a crankshaft of the internal combustion engine is described. The marks (M1 through M7) on the signal wheel are detected with the aid of a sensor and evaluated by a detection and evaluation device. To implement high-precision detection of a rotational speed, the rotational speeds (n) are evaluated using a sector section of approximately 6° to 35° to increase the accuracy on the basis of a reduced sector section of the signal wheel.

Abstract: A method for determining an average rotational speed of a rotating transmission shaft of an internal combustion engine to a rotational position is described, the rotating transmission shaft taking on various rotational positions and having an actual instantaneous rotational speed at a first time in the rotational position. At a first approximation in a first step, an approximated average rotational speed is determined, as the difference of the actual rotational speed at the first time and in the rotational position, and the product of a weighted amplitude and an angle-dependent amplitude factor.

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: A method is described for operating a system, in particular a starter device for starting an internal combustion engine of a motor vehicle, in the system a real-time signal for achieving an activation state of an actuating device being transmitted from a controller to the actuating device via a real-time communication device with the aid of real-time interfaces. To increase flexible control of the system, for example for a start-stop operation of a vehicle, using a simple configuration, the actuating device and the controller each have a data interface via which data information is transmitted with the aid of a data communication device.

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.