Abstract: The invention relates to a method for automatically switching off an internal combustion engine in a motor vehicle, in particular in a motor vehicle having an automatic transmission, by means of a stop/start device, which initiates measures for automatically switching off the internal combustion engine if the vehicle has been braked to a stop and advantageously held at a stop by actuation of the brake pedal for a predefined time interval. The invention is characterized in that the rotation speed of the internal combustion engine is changed, in particular reduced, at a defined point in time before the measures for automatically switching off the internal combustion engine are initiated.

Abstract: The invention relates to a method for automatically switching off an internal combustion engine in a motor vehicle, in particular in a motor vehicle having an automatic transmission, by means of a stop/start device, which initiates measures for automatically switching off the internal combustion engine if the vehicle has been braked to a stop and advantageously held at a stop by actuation of the brake pedal for a predefined time interval. The invention is characterized in that the rotation speed of the internal combustion engine is changed, in particular reduced, at a defined point in time before the measures for automatically switching off the internal combustion engine are initiated.

Abstract: A method for controlling an internal combustion engine of a motor vehicle. The method includes the use of an electronic control device for controlling the internal combustion engine in a motor vehicle, an irregular running determination unit for fault recognition, an injection quantity correction unit, a lambda probe associated with a defined group of cylinders, the injection quantity of a cylinder to be investigated of the defined group is adjusted in the direction of lean by a differential adjustment value associated with an irregular running differential value, and the injection value of at least one of the remaining cylinders, which are associated with the same lambda probe, is correspondingly adjusted in the direction of rich, so that in total a predetermined lambda value of this group of at least approximately 1 is reached.

Abstract: An injection valve of an internal combustion engine is actuated at least once by at least one specified control value of an actuating variable for metering at least one specified minimum quantity corrected by a correction value. The correction value for the control value is adjusted according to a deviation of an expected response value of an actuating variable from an actual response value of the response variable, as a result of the actuation of the respective injection valve, that is to say by way of a reduction of the deviation between the expected response value of the response variable and the actual response value of the response variable. If the correction value undershoots a specified negative correction threshold value or overshoots a specified positive correction threshold value, a fault is detected in a component which is affecting the exhaust gas in the cylinder assigned to the respective injection valve.

Abstract: An electronic control device according to the invention is disclosed for controlling the internal combustion engine in a motor vehicle, for fault recognition with an irregular running determination unit and with an injection quantity correction unit, a defined group of cylinders being associated with a lambda probe, the injection quantity of a cylinder to be investigated of the defined group is adjusted in the direction of lean by a differential adjustment value associated with an irregular running differential value, and the injection value of at least one of the remaining cylinders, which are associated with the same lambda probe, is correspondingly adjusted in the direction of rich, so that in total a predetermined lambda value of this group of at least approximately 1 is reached. Homogeneous operation is thus ensured. The differential adjustment values may, for example, relate to the injection quantity itself, the injector stroke or the injection time.

Abstract: A method for controlling an internal combustion engine of a motor vehicle with an injection quantity correction unit is disclosed. The method includes the use of an electronic control device for controlling the internal combustion engine in a motor vehicle, for fault recognition with an irregular running determination unit and with an injection quantity correction unit, a defined group of cylinders being associated with a lambda probe, the injection quantity of a cylinder to be investigated of the defined group is adjusted in the direction of lean by a differential adjustment value associated with an irregular running differential value, and the injection value of at least one of the remaining cylinders, which are associated with the same lambda probe, is correspondingly adjusted in the direction of rich, so that in total a predetermined lambda value of this group of at least approximately 1 is reached. Homogeneous operation is thus ensured.

Abstract: An electronic control device according to the invention is disclosed for controlling the internal combustion engine in a motor vehicle, for fault recognition with an irregular running determination unit and with an injection quantity correction unit, a defined group of cylinders being associated with a lambda probe, the injection quantity of a cylinder to be investigated of the defined group is adjusted in the direction of lean by a differential adjustment value associated with an irregular running differential value, and the injection value of at least one of the remaining cylinders, which are associated with the same lambda probe, is correspondingly adjusted in the direction of rich, so that in total a predetermined lambda value of this group of at least approximately 1 is reached. Homogeneous operation is thus ensured. The differential adjustment values may, for example, relate to the injection quantity itself, the injector stroke or the injection time.

Abstract: An injection valve of an internal combustion engine is actuated at least once by at least one specified control value of an actuating variable for metering at least one specified minimum quantity corrected by a correction value. The correction value for the control value is adjusted according to a deviation of an expected response value of an actuating variable from an actual response value of the response variable, as a result of the actuation of the respective injection valve, that is to say by way of a reduction of the deviation between the expected response value of the response variable and the actual response value of the response variable. If the correction value undershoots a specified negative correction threshold value and overshoots a specified positive correction threshold value, a fault is detected in a component which is affecting the exhaust gas in the cylinder assigned to the respective injection valve.

Abstract: An actuator for actuating a non-camshaft driven lift valve (12) of an internal combustion engine (10) includes a reciprocating tappet (20) that is coupled to the lift valve (12), a target ring (26) being attached to the outer circumference of the tappet, the target ring (26) having at least one slit and being made as a separate prefabricated part and consisting of an Fe-based material or of a ferritic material.

Abstract: A device for measuring the height of lift of poppet valves, in particular for poppet valves installed in internal combustion engines, with the help of inductive pickups, including a coil in a stationary mount and a metal sleeve which is in flush alignment in the valve shaft and is axially movable in the coil, and the sleeve is secured with axial play within the groove.

Abstract: A device for measuring the height of lift of poppet valves, in particular for poppet valves installed in internal combustion engines, with the help of inductive pickups, including a coil in a stationary mount and a metal sleeve which is in flush alignment in the valve shaft and is axially movable in the coil, and the sleeve is secured with axial play within the groove.