DETERMINATION OF ENGINE INTAKE AIR FILTER CONDITIONS (VERSIONS) AND INTAKE AIR FILTER DIAGNOSTICS FILTER Russian patent published in 2015 - IPC F02M35/09 F02B37/16 F02D23/00 F02D41/00 

FIELD: engines and pumps.

SUBSTANCE: invention can be used in diagnostics of internal combustion engine air filters (82). Claimed method is intended for engine (10) including turbosupercharger with bypass flap and engine electronic controller (12) and includes the following operations. Driving force is created at vacuum tank (138) and applied by adjustment of electrical vacuum regulator. Said driving force is applied to actuate vacuum drive of said bypass flap. Vacuum drive of said bypass flap is connected with turbosupercharger bypass flap. The position of said turbosupercharger bypass flap is varied with the help of bypass flap drive connected therewith. Operating conditions of engine air intake filter (82) are tested by engine electronic controller (12) with respect to those of bypass flap vacuum drive tank. Operator is notified about deterioration of intake air filter (82) operating conditions. Besides, invention discloses the determination of engine air filter operating conditions and air intake filter diagnostics system.

EFFECT: simplified control and diagnostics.

19 cl, 3 dwg