Robert Boschgmbh

Michael Heinzelmann

Jost Krauss

Joern Beckmann

Ole See

A device and a method for monitoring an interval between a first injection operation and a second injection operation of a combustion cycle in a cylinder of an internal combustion engine are described, in which it is determined whether an electrical actuator element has fully opened after the first injection operation and in which it is determined whether energizing sequences of the electrical actuator element overlap. Then, the interval between the first injection operation and the second injection operation is modified as a function of the determination results of the preceding determination operations.

Method and device for monitoring an interval between two injection operations

A method and device are described for driving an electromagnetic consumer, which includes a movable element. This element includes a solenoid-operated valve for controlling the metering of fuel into an internal combustion engine. A switching instant is determined within a timing window. Within the timing window, the voltage being applied to the consumer is able to be controlled to an adaptable setpoint value in open and/or closed loop.

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Fellbach, Germany

Michael Heinzelmann