Gm Global Technolgoy Operations, Inc.

Daniel Siebert

Igor Anilovich

Rafat F Hattar

John W Siekkinen

Morena Bruno

Daniel A Bialas

Alexander Michel

Simon Schiesser

Markus Kraft

Jochen Grieser

Maximilian Melling

A method and system controls a regeneration of a particle filter of an internal combustion engine. A first value is measured for the oxygen content in exhaust gas upstream from the particle filter. A second value is measured for the oxygen content in exhaust gas downstream from the particle filter. The particle filter is determined to be free of soot when the second value for the oxygen content is equal to the first value for the oxygen content.

Method for controlling a regeneration of a particle filter of an internal combustion engine

A method of monitoring an engine coolant system includes modeling the total energy stored within an engine coolant. If an actual temperature of the engine coolant is below a minimum target temperature, the modeled total energy stored within the energy coolant is compared to a maximum stored energy limit to determine if sufficient energy exists within the engine coolant to heat the engine coolant to a temperature equal to or greater than the minimum target temperature. The engine coolant system fails the diagnostic check when the modeled total energy stored within the energy coolant is greater than the maximum stored energy limit, and the minimum target temperature has not been reached.

Method of monitoring an engine coolant system of a vehicle

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Mainz, Germany

Daniel Siebert