APPARATUS AND METHOD FOR DETECTING ABNORMALAIR-FUEL RATIO VARIATION AMONG CYLINDERS OF MULTI-CYLINDER INTERNAL COMBUSTION ENGINE
    2.
    发明申请
    APPARATUS AND METHOD FOR DETECTING ABNORMALAIR-FUEL RATIO VARIATION AMONG CYLINDERS OF MULTI-CYLINDER INTERNAL COMBUSTION ENGINE 审中-公开
    用于检测多缸内燃机缸体异常燃料比变化的装置和方法

    公开(公告)号:WO2009013600A3

    公开(公告)日:2009-07-23

    申请号:PCT/IB2008001913

    申请日:2008-07-23

    CPC classification number: F02D41/1495 F02D41/0085 F02D41/1441 F02D2041/147

    Abstract: An apparatus for detecting abnormal air-fuel ratio variation among cylinders of a multi-cylinder internal combustion engine (1) according to the invention includes: a catalyst element (11) that oxidizes hydrogen contained in exhaust gas to remove the hydrogen; a first air-fuel ratio sensor (17) that detects an air-fuel ratio of exhaust gas that has not passed through the catalyst element (11); a second air-fuel ratio sensor (18) that detects an air-fuel ratio of exhaust gas that has passed through the catalyst element (11); and a unit (20) that determines whether abnormal air-fuel ratio variation among the cylinders has occurred based on an amount by which a value detected by the second air-fuel ratio sensor (18) is leaner than a value detected by the first air-fuel ratio sensor (17).

    Abstract translation: 根据本发明的用于检测多缸内燃机(1)的气缸之间的异常空燃比变化的装置包括:氧化废气中所含的氢以除去氢的催化剂元件(11) 检测未通过所述催化剂元件(11)的废气的空燃比的第一空燃比传感器(17); 检测已经通过所述催化剂元件(11)的废气的空燃比的第二空燃比传感器(18); 以及单元(20),其基于由所述第二空燃比传感器(18)检测出的值比由所述第一空气量检测出的值更稀的量,判定所述气缸之间的异常空燃比变动是否发生 - 燃料比传感器(17)。

    APPARATUS AND METHOD FOR DETECTING ABNORMALAIR-FUEL RATIO VARIATION AMONG CYLINDERS OF MULTI-CYLINDER INTERNAL COMBUSTION ENGINE
    3.
    发明申请
    APPARATUS AND METHOD FOR DETECTING ABNORMALAIR-FUEL RATIO VARIATION AMONG CYLINDERS OF MULTI-CYLINDER INTERNAL COMBUSTION ENGINE 审中-公开
    用于检测多缸内燃机气缸间异常燃料比变化的装置和方法

    公开(公告)号:WO2009013600A2

    公开(公告)日:2009-01-29

    申请号:PCT/IB2008/001913

    申请日:2008-07-23

    CPC classification number: F02D41/1495 F02D41/0085 F02D41/1441 F02D2041/147

    Abstract: An apparatus for detecting abnormal air-fuel ratio variation among cylinders of a multi-cylinder internal combustion engine (1) according to the invention includes: a catalyst element (11) that oxidizes hydrogen contained in exhaust gas to remove the hydrogen; a first air-fuel ratio sensor (17) that detects an air-fuel ratio of exhaust gas that has not passed through the catalyst element (11); a second air-fuel ratio sensor (18) that detects an air-fuel ratio of exhaust gas that has passed through the catalyst element (11); and a unit (20) that determines whether abnormal air-fuel ratio variation among the cylinders has occurred based on an amount by which a value detected by the second air-fuel ratio sensor (18) is leaner than a value detected by the first air-fuel ratio sensor (17).

    Abstract translation: 根据本发明的用于检测多气缸内燃机(1)的气缸之间的异常空燃比变化的装置包括:催化剂元件(11),其氧化排气中所含的氢 去除氢气; 检测未通过催化剂元件(11)的排气的空燃比的第一空燃比传感器(17) 检测通过了催化剂元件(11)的排气的空燃比的第二空燃比传感器(18) 和基于第二空燃比传感器(18)的检测值比第一空气检测值小的值判定气缸间异常空燃比变化的单元(20) - 燃料比传感器(17)。

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