METHOD OF CONTROLLING ASPIRATOR MOTIVE FLOW

Methods and systems are provided for controlling an aspirator shut-off valve in a boosted engine. One example method includes increasing an opening of the aspirator shut-off valve to allow motive flow through an aspirator in response to engine speed between a first, lower speed and a second, higher...

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Bibliographische Detailangaben
Hauptverfasser:	LUEHRSEN ERIC, PURSIFULL ROSS DYKSTRA
Format:	Patent
Sprache:	chi ; eng
Schlagworte:	BLASTING COMBUSTION ENGINES CONTROLLING COMBUSTION ENGINES HEATING HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS LIGHTING MECHANICAL ENGINEERING SUPPLYING COMBUSTION ENGINES IN GENERAL, WITH COMBUSTIBLEMIXTURES OR CONSTITUENTS THEREOF WEAPONS
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Beschreibung
Zusammenfassung:	Methods and systems are provided for controlling an aspirator shut-off valve in a boosted engine. One example method includes increasing an opening of the aspirator shut-off valve to allow motive flow through an aspirator in response to engine speed between a first, lower speed and a second, higher speed. As such, control of the aspirator shut-off valve may be simplified. 本发明涉及控制吸气器动力流的方法。提供用于控制增压发动机中的吸气器切断阀的方法和系统。种示例方法包括响应于发动机速度在第较低速度和第二较高速度之间，增大吸气器切断阀的开口以允许动力流穿过吸气器。因此，可以简化对吸气器切断阀的控制。