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    Control apparatus of the supercharged engine
    7.
    发明专利
    Control apparatus of the supercharged engine 有权

    公开(公告)号：JP4258910B2

    公开(公告)日：2009-04-30

    申请号：JP26399099

    申请日：1999-09-17

    申请人： マツダ株式会社

    发明人： 寛 林原 ,  友巳 渡辺 ,  啓二 荒木 ,  智明 齊藤

    IPC分类号： F02B37/00 ,  F02D41/10 ,  F02B37/24 ,  F02D21/08 ,  F02D23/00 ,  F02D41/02 ,  F02D41/14 ,  F02D41/18 ,  F02D43/00 ,  F02M25/07

    CPC分类号： Y02T10/144 ,  Y02T10/47

    摘要： PROBLEM TO BE SOLVED: To properly maintain the efficiency, etc., of a supercharger, by effectively and cooperatively controlling an exhaust reflux valve and a supercharger in an operation region being performing an exhaust reflux. SOLUTION: A device, equipping a turbo-supercharger and an EGR device, and also having a means for controlling an EGR valve so as to equate an air- fuel ratio with a target air-fuel ratio; is equipped with a suction pressure sensors 24 for detecting supercharging pressure, an air flow sensor 33 for detecting fresh air quantity to an engine, and a controlling means 40. The means 40 controls at least one side of the driving quantity of the turbo-supercharger and the opening quantity of the EGR valve, so that the supercharging pressure and the fresh air quantity can be increased/decreased in accordance with each other, following the change of an operation condition in an operation region making exhaust reflux.

    Control device for an engine with a turbocharger
    8.
    发明专利
    Control device for an engine with a turbocharger 有权

    公开(公告)号：JP3826592B2

    公开(公告)日：2006-09-27

    申请号：JP34907598

    申请日：1998-12-08

    申请人： マツダ株式会社

    发明人： 祐児 松尾 ,  寛 林原 ,  友巳 渡辺 ,  啓二 荒木

    IPC分类号： F02B37/24 ,  F02D43/00 ,  F02D9/02 ,  F02D23/00 ,  F02M25/07

    CPC分类号： F02B29/0406 ,  F02M26/05 ,  F02M26/10 ,  F02M26/57 ,  Y02T10/121 ,  Y02T10/14 ,  Y02T10/144

    摘要： PROBLEM TO BE SOLVED: To satisfactorily hold the NOx reducing effect in transitional operation by providing a variable blade for changing the exhaust passing area of a turbo supercharger and a suppressing means for suppressing the opening directional movement of the variable blade in the transitional operation. SOLUTION: A turbo supercharger 5 is mounted on an engine 1, and the turbo supercharger 5 is provided with a compressor 6, a turbine 7 and a variable blade 8. The engine 1 has an EGR valve 12 interposed in an EGR passage allowing an exhaust passage 3 to communicate with an intake passage 3. The signals from an air flow sensor 21 and an intake pressure sensor 25 are inputted to a control unit 30. An intake throttle valve 23, the variable blade 8 of the VGT 5 and the EGR valve 12 are controlled by the control unit 30. In a transitional operation where a target intake pressure is suddenly reduced, the opening directional operation of the variable blade 8 is suppressed. Accordingly, the lack of exhaust gas circulating quantity in the transitional operation can be prevented to satisfactorily exhibit the NOx reducing effect.