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    • 1. 发明申请
    • SYSTEM AND METHOD TO MONITOR THE OPERATING STATUS OF A CATALYTIC DEVICE COMPRISING TWO CATALYTIC OXIDATION COMPONENTS ARRANGED IN SERIES IN THE EXHAUST LINE OF AN INTERNAL COMBUSTION ENGINE
    • 监测包含内燃机排气管系列中的两种催化氧化组分的催化装置的操作状态的系统和方法
    • WO2007128937A3
    • 2008-01-03
    • PCT/FR2007051217
    • 2007-05-04
    • RENAULT SAPLOTON VIOLAINEPILLOT ADRIENTHOUVENEL NICOLAS
    • PLOTON VIOLAINEPILLOT ADRIENTHOUVENEL NICOLAS
    • F01N11/00F01N3/025F02D41/30
    • F01N3/0238F01N3/0253F01N3/035F01N11/002F01N13/009F01N13/0093F01N13/0097F01N2550/02Y02T10/47
    • The system to monitor the operating status of a catalytic device comprising two catalytic oxidation components (3, 4) arranged in series in the exhaust line (1) of an internal combustion engine (2), comprises an electronic control unit (26), and at least one controlled fuel injector (7, 8, 9, 10) into the engine (2). The system comprises an additional controlled fuel injector (16), arranged between the two catalytic components (3, 4), and the first and second means to determine a first temperature and a second temperature of the engine exhaust fumes, between both catalytic components (3, 4), and downstream from the second catalytic component (4), respectively. In addition, the system comprises control means (27) of two predetermined successive injections, of fuel in the engine (2), and between said two catalytic components (3, 4), respectively. In addition, the system comprises means to determine (27a) the respective operating status of both catalytic components (3, 4) as a function of said first and second temperatures (T 1 , T 2 ) for a first predetermined time and for a second predetermined time, respectively, starting at the first and second injections, respectively, and according to a first set-point temperature (T 1
    • 用于监测催化装置的操作状态的系统包括串联设置在内燃机(2)的排气管线(1)中的两个催化氧化组分(3,4),其包括电子控制单元(26)和 至少一个受控燃料喷射器(7,8,9,10)进入发动机(2)。 该系统包括布置在两个催化部件(3,4)之间的附加控制的燃料喷射器(16),以及用于确定两个催化组分之间的发动机废气的第一温度和第二温度的第一和第二装置( 3,4)和第二催化组分(4)的下游。 此外,该系统包括分别在发动机(2)中的燃料和所述两个催化组分(3,4)之间的两个预定的连续喷射的控制装置(27)。 另外,该系统包括用于根据所述第一和第二温度(T 1,T 2)确定(27a)两个催化组分(3,4)的相应操作状态的装置 分别从第一次和第二次喷射开始的第一预定时间和第二预定时间,并且根据第一设定点温度(T 1< 1>