| 摘要 |
#CMT# #/CMT# The method involves terminating a vent pipe (15) between a crankcase (3) and an air system (5) of an internal combustion engine (2) during a testing period. Change of an operating parameter of the internal combustion engine is determined during the testing period, and a difference between the operating parameter and a target value of the operating parameter is detected as a difference parameter value. An error in the crankcase emission control system is detected based on the determined change of the operating parameter, which comprises lambda value of exhaust gas of the engine. #CMT# : #/CMT# Independent claims are also included for the following: (1) an engine system comprising a controller (2) a computer program comprising instructions to perform a method for testing operability of a crankcase emission control system. #CMT#USE : #/CMT# Method for testing operability of a crankcase emission control system of an engine system (claimed). #CMT#ADVANTAGE : #/CMT# The error in the crankcase emission control system is detected based on the determined change of the operating parameter, thus enabling secure diagnosis of error function of the crankcase emission control system during operation of the internal combustion engine. #CMT#DESCRIPTION OF DRAWINGS : #/CMT# The drawing shows a schematic partial sectional view of an engine system. 1 : Engine system 2 : Internal combustion engine 3 : Crankcase 5 : Air system 15 : Vent pipe. |
