CONTROL DEVICE FOR NEGATIVE PRESSURE GENERATOR

摘要

PROBLEM TO BE SOLVED: To provide a control device for a negative pressure generator capable of suitably securing a negative pressure by using an ejector and capable of solving a problem of response delay at a time of transition for securing a negative pressure.

SOLUTION: This device comprises the ejector 30 generating a negative pressure greater than that to be taken out of an intake manifold 14 and a VSV 1 functioning the ejector 30 or stopping function of the ejector 30. An ECU 40 controls a negative pressure generation device 100 arranged in a channel independent from an electric throttle adjusting intake air quantity at a time of idling of an internal combustion engine 50, and is provided with a priority control means controlling the VSV 1 with priority over control of an electric throttle 13 when adjusting intake air quantity to intake air quantity demanded by the internal combustion engine 50 during idling.

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