Abstract: A flow sensor for internal combustion engines in which the temperature control of a heating resistor element is implemented by pulse-width modulation.

Abstract: A measuring element for a flow rate sensor is described, in which the number of terminals is minimized to reduce the dimensions of the measuring element.

Abstract: A device and a method for controlling an internal combustion engine. At least one first partial injection and one second partial injection are provided per injection cycle. One of the two partial injections is shifted in response to certain operating conditions being active. A correction value for a variable characterizing the delivery period is determined as a function of the shift of the partial injection.

Abstract: A device and a method for controlling an internal combustion engine are described. At least one first partial injection and one second partial injection are provided per injection cycle. One of the two partial injections is shifted in response to certain operating conditions being active. A correction value for a variable characterizing the delivery period is determined as a function of the shift of the partial injection.

Abstract: A method and a device for activating an electromagnetic consumer having a movable element, in particular a solenoid valve for controlling the metering of fuel into an internal combustion engine. Within a time window, a switching instant at which the movable element reaches a certain position is determined. The duration of the time window can be defined so that the current flowing through the consumer during the time window does not exceed a threshold value.

Abstract: The method for determining segment times (Tk) required for controlling an internal combustion engine includes providing a transducer disk (17) connected to a camshaft of the engine with a plurality of markings equally spaced from each other on the transducer disk; measuring respective segment times (Tk) between detection of corresponding pairs of markings on the transducer disk (17) by means of a camshaft sensor (21); triggering fuel injection events and combustion events in order to trip acceleration events at a substantially constant camshaft rotation speed; determining a resulting acceleration quotient (Qk) for a current segment time as a quotient of the current segment time divided by a preceding segment time and correcting a following segment time by means of the acceleration quotient (Qk) for the current segment time. The method is not performed when the internal combustion engine has a crankshaft with a properly working crankshaft sensor for measuring crankshaft rotation speed.