Abstract: The invention relates to a method for operating a closing device (1), wherein with the aid of an electric motor (4) controlled by a control unit (7), a closing element (2) can be moved against a stop edge in a closing direction, the method comprising the following steps: detecting a pinching force on an object or on a body part between the closing element and the stop edge by integrating a measurement variable, wherein the pinching force is represented by a corresponding integrator value; signalling that a maximum permissible pinching force has been reached as a function of the integrator value; temporarily storing the integrator value after the electric motor has been stopped (4); and, when a resumption of an operation of the electric motor (4) in the closing direction is requested, starting the integration of the measurement variable beginning with the temporarily stored integrator value as a starting value.

Abstract: The invention relates to a method for operating a closing device (1), wherein with the aid of an electric motor (4) controlled by a control unit (7), a closing element (2) can be moved against a stop edge in a closing direction, the method comprising the following steps: detecting a pinching force on an object or on a body part between the closing element and the stop edge by integrating a measurement variable, wherein the pinching force is represented by a corresponding integrator value; signalling that a maximum permissible pinching force has been reached as a function of the integrator value; temporarily storing the integrator value after the electric motor has been stopped (4); and, when a resumption of an operation of the electric motor (4) in the closing direction is requested, starting the integration of the measurement variable beginning with the temporarily stored integrator value as a starting value.

Abstract: The invention relates to a method for operating an electric window lift system for electrically moving a vehicle door window by means of a cable, according to which, based on the length change of the cable, the offset of the movement of the window is determined, in which the charge modification of the electric motor is monitored, the offset being used to exactly position (opening, closing) the window.

Abstract: A method for controlling movement of a window glass (12) in a vehicle using an electric motor (26) associated with a drive mechanism (1,2,3,4) through a cable (50), said method comprising the steps: determining an actual position (X2) of the window glass (12) based on the movement of the motor (26), determining a cable stiffness (S2), determining a position lag (400) of the window glass (12) based on the determined actual position (X2) of the window glass (12), a predetermined position (Z2) of the window glass (12) and the cable stiffness (S2); and continuously correcting the position of the window glass (12) based on the determined position lag (400).

Abstract: The invention relates to a method for operating an electric window lift system for electrically moving a vehicle door window by means of a cable, according to which, based on the length change of the cable, the offset of the movement of the window is determined, in which the charge modification of the electric motor is monitored, the offset being used to exactly position (opening, closing) the window.

Abstract: A method for controlling movement of a window glass (12) in a vehicle using an electric motor (26) associated with a drive mechanism (1,2,3,4) through a cable (50), said method comprising the steps: determining an actual position (X2) of the window glass (12) based on the movement of the motor (26), determining a cable stiffness (S2), determining a position lag (400) of the window glass (12) based on the determined actual position (X2) of the window glass (12), a predetermined position (Z2) of the window glass (12) and the cable stiffness (S2); and continuously correcting the position of the window glass (12) based on the determined position lag (400).

Abstract: The invention relates to a method for determining a position point of a movable element, particularly a window (33) or a roof of a motor vehicle that can be advanced into at least one elastic receptacle (36) by means of a drive, comprising the steps of continually determining a spring stiffness in relation to the moving element (33) in the elastic receptacle (36) and determining a position point upon exceeding a specified spring stiffness threshold value.

Abstract: The invention relates to a method for determining a position point of a movable element, particularly a window (33) or a roof of a motor vehicle that can be advanced into at least one elastic receptacle (36) by means of a drive, comprising the steps of continually determining a spring stiffness in relation to the moving element (33) in the elastic receptacle (36) and determining a position point upon exceeding a specified spring stiffness threshold value.

Abstract: The invention relates to a pinch protection method and device for a motor-driven closing system. The method comprises the following steps: detecting a reduced motor speed, switching off the motor, analyzing a sensor signal for detecting a pinch situation, deciding whether a pinch situation is present, and controlling the motor depending on the detection of a pinch situation. The device for detecting a pinch situation comprises a motor, a detection unit, a control unit and at least one sensor. The device is adapted to carry out the method according to the invention.

Abstract: The invention relates to a pinch protection method and device for a motor-driven closing system. The method comprises the following steps: detecting a reduced motor speed, switching off the motor, analyzing a sensor signal for detecting a pinch situation, deciding whether a pinch situation is present, and controlling the motor depending on the detection of a pinch situation. The device for detecting a pinch situation comprises a motor, a detection unit, a control unit and at least one sensor. The device is adapted to carry out the method according to the invention.

Abstract: In a closing device, in particular for a motor vehicle window or sunroof, having a drive motor (4) for pushing a closing element such as a window pane or roof panel across an opening to be closed, a sensor (3) for detecting a force acting on the closing element in the opposite direction to the direction of closing, and a control circuit (1) for monitoring the force and interrupting the closing element's closing movement if the sensor (3) detects that the force exceeds a limit value, the control circuit (1) varies the limit value depending on force measured at an earlier point in time. As a result, it is possible to distinguish between disruptive influences on the closing device, in particular external acceleration forces acting on the closing element, from forces arising as a result of a body part being trapped in the opening, reversing of the closing device only being permitted in the latter instance.

Abstract: Suggested is a circuit for operating computing components (10), in particular microprocessors, which include a monitoring unit (24) that transmits a reset signal (23) to the computing component (10) as a result of interferences (35). A varied program sequence is provided in the computing component (10), depending on a compare signal (17, 18) provided by a comparator (13), which compares a signal (12) with at least one threshold value (14, 15) that mirrors a condition of a device (31), which cooperates with the computing component (10). An adjustment device is planned as a preferred embodiment of a device (31), wherein the condition corresponds to at least one position range that is preferably located at least near at least one stop position (34) for the adjustment drive (31).

Abstract: In an arrangement for detecting pinching situations in electric drives, provided in particular for window and sunroof openers in motor vehicles, the voltage induced in the armature of the motor is used, the induced voltage being determined from the voltage across the motor terminals and the current flowing in the armature, in particular as the difference between the voltage across the motor terminals and the product of the armature current by the armature resistance which is obtained periodically whenever possible. The armature resistance is obtained from the voltage across the motor terminals and the blocking current of the motor, the latter being determined by extrapolation of the armature current determined at a certain point in time. The armature current is measured using a shunt resistor and optionally amplified, and the current signal obtained is averaged using a microcontroller-controlled integrator with adjustable, computed integration periods, and digitized using an analog-digital converter.

Abstract: An arrangement and method for the electronic monitoring of an adjustment drive wherein two criteria must be met before a jamming safety responds. The one criterium takes into account the curve for the rotational speed of the actual and a preceding operation of the adjustment drive while a first and/or second derivative of measured value for the adjustment drive are incorporated into the second criterium.

Abstract: A method for monitoring the path of movement of a part which is movable toward at least one end position by means of a drive, wherein at least one time period is measured which corresponds to a selectable number of revolutions of a drive shaft and the at least one time period is evaluated and supplies a measure for a running behavior of the part. Immediately after the start of the drive, at least one time period is measured which corresponds to a selectable number of revolutions of the drive shaft, this time period is stored temporarily when the drive shaft has executed a selectable minimum number of revolutions and, during a next start of the drive, the time period corresponding to the selectable number of revolutions of the drive shaft is measured again and is compared with the temporarily stored time period and the drive is stopped or reversed if the temporarily stored time period is exceeded by a selectable measure.

Abstract: A method of positioning a part includes the steps of reciprocatingly moving a part between two end positions by a drive, generating a control signal for the drive upon reaching the end positions, stopping the drive or changing a drive direction of the drive upon receipt of the control signal; detecting a position of the drive after a first reaching of at least one of the end positions by the part, storing the detected position of the drive, and during further approaches of the end positions by the part, stopping the drive or changing the drive direction before reaching the end positions. After a selectable number of approaches of the part to at least one of the end positions the drive is stopped only when the end position is reached and the position of the drive is detected and stored once again.

Abstract: A movement path of a part which is movable by a drive relative to at least one end position is monitored by monitoring the drive, and turning off or reversing the drive is performed in dependence on the exceeding of at least one predetermined parameter. The movement path of the path is subdivided into regions in which different influences are performed. In particular, the movement path is subdivided into five regions in which a different drive force limiting (closing force limiting) of the drive is performed.

Abstract: A method for operating a microprocessor (10) which can be switched by an activation signal (23) at an interrupt input (15) from an inactive operating state to an active operating state, with the activation signal (23) being supplied to the interrupt input (15) after a predeterminable time after each entrance into the inactive state.