Exhaust gas temperature increasing method for internal combustion engine, involves operating set of cylinders with high fuel to air ratio, and operating another set of cylinders is operated with low fuel to air ratio

摘要

The method involves operating a set of cylinders with a high fuel to air ratio, and adjusting the fuel to air ratio and/or a load of the cylinders independent from another set of cylinders. The combustion in each cylinder of the former set of cylinders is adapted to the adjusted ratio and/or load and is optimized for the adjusted ratio and/or load. An indicated medium pressure is held during the measures to increase an exhaust gas temperature. The latter set of cylinders is operated with a low fuel to air ratio. Independent claims are also included for the following: (1) a method for determining loading conditions of a particle filter of an internal combustion engine with a particle sensor (2) a device for determining loading conditions of a particle filter of an internal combustion engine.