FIELD: internal combustion engines.
SUBSTANCE: invention can be used in turbocharged internal combustion engines. Control method of bypass valve of turbo-supercharger of internal combustion engine consists in that degree of opening of bypass valve is controlled. During cold start of internal combustion engine, bypass valve is completely opened until engine starting is completed. Degree of opening of bypass valve is controlled by transfer of bypass valve to intermediate opening degree which is less than opening degree of bypass valve during idle stroke after internal combustion engine is warmed up. Delay of ignition moment is performed, during idle run in condition, in which internal combustion engine is cold. Bypass valve control device is described.
EFFECT: technical result consists in preventing occurrence of abnormal sound in bypass valve during idling in cold state of engine.
7 cl, 7 dwg
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