Robert Boschgmbh

Heiko Lenhardt

Michael Hackner

Walter Lehle

Johannes Zeidler

Andreas Walter

Ipek Sarac

Bernd Kohler

A method is provided for monitoring at least one sensor of a vehicle, which has means for wireless communication, wherein measured values of the at least one sensor are compared to measured values of at least one comparison vehicle with the aid of the means for wireless communication.

Device for monitoring a sensor of a vehicle

A method for specifying a malfunction of an exhaust gas recirculation system of an internal combustion engine of a motor vehicle, including: setting a first operating point of the engine and a first operating state of the fresh air/exhaust gas system as vehicle conditioning in a first measurement setting; measuring volumetric efficiencies of the engine for the first measurement setting and for at least one additional measurement setting, and comparing the measured volumetric efficiencies with an engine characteristics map stored in a memory unit for volumetric efficiency values of the engine, and ascertaining whether a malfunction is present during the exhaust gas recirculation process based on the comparison; and specifying the malfunction of the exhaust gas recirculation system while taking into account the measuring results for the first measurement setting and for the at least one additional measurement setting and the stored engine characteristics map for volumetric efficiency values.

Method for specifying a malfunction of an exhaust gas recirculation system of an internal combustion engine of a motor vehicle and corresponding diagnostic device

Growing community of inventors

Limburgerhof, Germany

Heiko Lenhardt