Abstract:
A control device for the selective control of a multiplicity of actuators of an internal combustion engine, comprising: - a central control unit (1); - a multiplicity of actuators associated with the multiplicity of actuator controls (2), which are connected to the central control unit (1), wherein each actuator control (2) of the multiplicity of actuator controls (2) comprises an address, so that the actuator controls (2) are selectively controllable by the central control unit (1) by means of the address and that each actuator control (2) comprises a comparator (6), which is configured to compare a signal, preferably a voltage or current signal, emitted by the central control unit (1) with the address and to emit an activation signal via an activation line (13), if the comparison has resulted in a match of the signal with the address of the respective actuator control (2) within a window, preferably voltage window (ΔV).
Abstract:
A multi-charge ignition system including a spark plug control unit adapted to control at least two coil stages so as to successively energise and de-energise said coil stage(s) to provide a current to a spark plug, said two stages comprising a first transformer (T1) including a first primary winding (L1) inductively coupled to a first secondary winding (L2); a second transformer (T2) including a second primary winding (L3) inductively coupled to a second secondary winding (L4); characterised in including first switch means M1 electrically connected between a voltage supply high side and the high side of the first primary winding, a second switch Q1 electrically connected between the first primary winding and the power supply low side supply/earth, a third switch connected between the junction of the first switch and high side end of the first inductor and a point between the low side of the second primary winding and low side supply/earth, and further including a fourth switch located between the low side of the second primary winding and said point, and a fifth switch located between said point and low side supply/earth.
Abstract:
A method of controlling an ignition system, said ignition system including a spark plug control unit adapted to control at least two coil stages so as to successively energise and de-energise said coil stage(s) to provide a current to a spark plug, including two stages comprising a first transformer (T1) including a first primary winding (L1) inductively coupled to a first secondary winding (L2); a second transformer (T2) including a second primary winding (L3) inductively coupled to a second secondary winding (L4); said control unit enabled to simultaneously energize and deenergize primary windings (L1, L3) by simultaneously switching on and off two corresponding switches (Q1, Q2) to maintain a continuous ignition fire, and includes a step-down converter stage located between said control unit and coil stage(s), said step-down converter including a switch (M1) and a diode (D3), said control unit being enabled to switch off said switch (M1), wherein the method provides control to limit the secondary current peak at the end of the Coupled Multi-Charge period, comprising the step of, at the end of the Coupled Multi-Charge period: switching off M1, Q1 and Q2.
Abstract:
Es wird ein Verfahren zum Betreiben eines Zündsystems (1) für eine Brennkraftmaschine umfassend einen Primärspannungserzeuger (2) und einen Hochsetzsteller (7) zum Aufrechterhalten eines mittels des Primärspannungserzeugers (2) erzeugten Zündfunkens vorgeschlagen. Erfindungsgemäß folgt einem Ermitteln (100) eines veränderten Energiebedarfes für einen mittels des Hochsetzstellers (7) aufrecht zu erhaltenden Zündfunken ein Verändern (300) eines Einschaltzeitpunktes des Hochsetzstellers (7) relativ zu einem Abschaltzeitpunkt des Primärspannungserzeugers (2).