FIELD: machine building.
SUBSTANCE: invention can be used in the internal combustion engines. Method of controlling an ejection flow through an aspirator for an engine comprises the following. Operation of compressed air engine (10) from intake compressor (162) and pressure in intake manifold (46) smaller than or equal to inlet pressure of throttle valve (62) and engine rpm between first lower rpm and second higher rotation frequency. During operation of the engine with compressed air from the inlet compressor and pressure in the intake manifold, which is less than or equal to the pressure at the inlet of the throttle valve, increasing the opening of the aspirator shutoff valve (74) for enabling control of the ejection flow through aspirator (21) in response to the fact that the engine rpm is between the first lower rotation frequency and the second higher rotation frequency. Engine operation at idling speed without compressed air. In response to engine operation at idling rpm, closing of the latter. Disclosed are a method and a system for controlling an ejection flow through an aspirator for a motor vehicle.
EFFECT: technical result consists in compliance with emission standards and sufficient level of vacuum due to higher accuracy of controlling shutoff valve of aspirator.
20 cl, 16 dwg
