Siemens Aktiengesellschaft

Continental Automotive Gmbh

Volker Eichenseher

Andreas Hartke

Thomas Vogt

Martin Götzenberger

Achim Koch

Volker Karrer

Markus Teiner

Thomas Seidenfuss

Jens Maase

Franz Queisser

Wolfgang Menzel

Reinhard Allwang

Karl-Heinz Ebeling

Dirk Hofmann

A control device actuates at least one fuel injection valve with a high voltage and a comparatively lower voltage in temporally consecutive phases. The control device has supply connections for supplying energy from a motor vehicle battery. One of the connections is connected to vehicle ground. First output connections provide a positive first output voltage with respect to vehicle ground, the voltage being smaller than or equal to a hazard voltage of 60 volts of direct current according to TRBS2131. Second output connections provide a positive second output voltage with respect to vehicle ground, the voltage being greater than the hazard voltage and smaller than a sum of the first output voltage and the hazard voltage. The positive potentials of the first and second output voltages (UU) are linked together.

Control device for actuating at least one fuel injection valve, and a switch arrangement comprising such a control device

A circuit design for a circuit for switching currents is disclosed, comprising at least one switch element (T. . . Tn, T' . . . Tn&#x2032;), and at least one respective main current conductor (D, S, A) for interlinking the switch element, the poles (V+, GND) of a current source and an energy accumulator (C). The aim of the invention is to reduce ohmic resistance and inductive resistance of such a circuit. To this end, an ancillary current conductor (D, S, A) that has a lower current carrying capacity than the main current conductor is connected in parallel to at least one of the main current conductors (D, S, A).

Circuit design for a circuit for switching currents

In the event of a failure or a disruption of an exchange of data between a valve control unit and an operational control unit of an internal combustion engine with electromechanically activated inlet valves, a valve control unit switches over the electromagnetic activation of the inlet valves to full-load control times. The operational control unit suitably sets a throttle valve in order to cause the load control of the internal combustion engine no longer to be performed by the valve load control but rather by the throttle-valve load control in the emergency operating mode.

Circuit for load control and method for the emergency operation of an internal combustion engine

In order to control electromechanically activated charge cycle valves, a circuit is provided in which placement control elements actuate an output stage for the electromechanically activated charge cycle valves and control a gentle placement of the charge cycle valves in a respective end position. For the purpose of communication with the operational control unit of the internal combustion engine, a digital communications computer is provided which provides the placement control element with timing signals. As a result, the placement control elements are freed of communications functions and can be dedicated to performing the placement control in real time.

Circuit for controlling at least one electromechanically activated inlet valve and at least one electromechanically activated outlet valve of an internal combustion engine

In order to avoid an undesired and damaging ignition in the case of the failure of a valve in an internal combustion engine with electromechanical valve drive, a control device interrupts the injection and/or the ignition for at least the cylinder in question when such a failure of a valve is detected by the control device.

Control system and method for operating an internal combustion engine

Growing community of inventors

Beratzhausen, Germany

Volker Eichenseher