Robert Boschgmbh

David Van Belzen

Gerhard Lotterbach

Udo Zucker

Jan F Van Woudenberg

Gunter Honig

Immanuel Krauter

Manfred Schenk

Jan-Faas Van Woudenberg

Switching circuit for controlling the current through an electrical

Position displacement and speed sensor system, particularly for

A pressure sensor is disposed downstream of a throttle valve in the intake tube of an internal combustion engine. When the throttle valve is closed, a throttle valve switch generates a logic signal. A monitoring of the pressure sensor is effected in that upon the simultaneous occurrence of the logic signal and a pressure signal which corresponds to an abnormal or a physically impossible state when the throttle valve is closed, an alarm is triggered.

Apparatus and method for monitoring a pressure sensor

A control device having certain criteria which must be fulfilled in order to trigger an acceleration enrichment. Criteria are a defined number of successive load values of increasing tendency and/or an actual load value with a defined distance above the arithmetic mean of a number of preceding load values. For the acceleration enrichment itself operational parameters, such as rpm, load, load gradient, temperature and number of revolutions since the triggering of the acceleration are processed.

Control device for a fuel metering system of an internal combustion

Growing community of inventors

Hemmingen, Germany

David Van Belzen