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1.发明授权
公开(公告)号：EP1134375B1
公开(公告)日：2009-12-16
申请号：EP01302359.3
申请日：2001-03-14
CPC分类号： F01N3/0864 , F01N3/0807 , F01N3/0842 , F02D41/0275 , F02D41/1446 , F02D41/1458 , F02D41/146 , F02D41/1465 , F02D41/187 , F02D41/3029 , Y02T10/22 , Y02T10/24
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公开(公告)号：EP1134393A3
公开(公告)日：2003-09-10
申请号：EP01302338.7
申请日：2001-03-14
CPC分类号： F01N3/0842 , F01N13/009 , F02D41/0275 , F02D41/3076 , F02D2200/0806 , F02D2200/0811
摘要： A method and apparatus for controlling the operation of a "lean-burn" internal combustion engine in co-operation with an exhaust gas purification system having an emissions control device capable of alternatively storing and releasing NO x when exposed to exhaust gases that are lean and rich of stoichiometry, respectively, determines a performance impact, such as a fuel-economy benefit, of operating the engine at a selected lean operating condition, with due consideration of the periodic rich operating condition necessary to release stored NO x from the device. The method and apparatus further determine a measure representative of the instantaneous NO x -storing efficiency of the device. The method and apparatus enable the selected lean operating condition as long as the determined performance impact and the determined device efficiency are each above respective predetermined minimum levels.
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3.发明公开Method and apparatus for accessing ability of lean NOx trap to store exhaust gas constituent 有权用于评估Abgaskomponentspeicherungsfähigkeit稀燃NOx吸附的方法和装置
公开(公告)号：EP1134387A2
公开(公告)日：2001-09-19
申请号：EP01301423.8
申请日：2001-02-19
CPC分类号： F01N3/0864 , F01N3/0807 , F01N3/0842 , F02D41/027 , F02D41/0275 , F02D41/028 , F02D2200/0806 , F02D2200/0808 , F02D2200/0811 , F02D2200/0816 , Y02T10/24
摘要： A method and apparatus for controlling the operation of a "lean-burn" internal combustion engine in co-operation with an emissions control device capable of alternatively storing and releasing an exhaust gas constituent, such as oxygen, when exposed to exhaust gases that are lean and rich of stoichiometry, respectively, determines an ability of the device only when the engine is operating at a relatively-low mass air flow rate.
摘要翻译： 一种用于在排放控制装置与控制所述操作“贫燃”内燃机的共同操作能够可选地存储和的废气成分，：如氧，当暴露于排气并是稀释放的方法和设备 和浓于化学计量的，分别仅当发动机在相对低的空气质量流量操作该装置的能力确定的地雷率。
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公开(公告)号：EP1134376A2
公开(公告)日：2001-09-19
申请号：EP01302372.6
申请日：2001-03-14
CPC分类号： F01N3/0864 , F01N3/0814 , F01N3/0842 , F01N13/009 , F01N2250/12 , F01N2430/06 , F02D41/0275 , F02D41/146 , F02D41/1462 , F02D41/1463 , F02D2200/0806 , F02D2200/0811 , Y02T10/24
摘要： An engine control system of an internal combustion engine coupled to a NOx trap (72) uses a integrated difference between NOx exiting the trap (72) and NOx entering the trap (72) to determine NOx storage capacity. NOx exiting the trap is measured by a NOx sensor downstream of the trap. NOx entering the trap (72) is determined based on engine operating conditions. The values are integrated until the ratio of NOx exiting to NOx entering reaches a predetermined threshold.
摘要翻译： 耦合到NOx捕集器（72）的内燃机的发动机控制系统使用离开捕集器（NOX）的NOx和进入捕集器（72）的NOx之间的积分差异来确定NOx存储容量。 通过位于捕集器下游的NOx传感器来测量离开捕集阱的NOx。 进入捕集器（72）的NOx基于发动机操作条件来确定。 这些值被积分，直到NOx排出的NOx的比例达到预定的阈值。
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公开(公告)号：EP1134393B1
公开(公告)日：2005-02-02
申请号：EP01302338.7
申请日：2001-03-14
CPC分类号： F01N3/0842 , F01N13/009 , F02D41/0275 , F02D41/3076 , F02D2200/0806 , F02D2200/0811
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公开(公告)号：EP1134374A3
公开(公告)日：2005-01-19
申请号：EP01302357.7
申请日：2001-03-14
CPC分类号： F01N3/0842 , F01N2570/04 , F02D41/028 , Y02T10/24
摘要： An engine control system for managing lean NOx trap decontamination uses associated fuel economy impacts to determine when decontamination is enabled. In particular, a maximum achievable benefit provided by lean operation with a decontaminated NOx trap (72), a present fuel economy benefit being provided by lean operation, and a fuel economy penalty for performing decontamination are used. When a resulting benefit is greater than a penalty, decontamination is enabled.
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7.发明公开Method for improved performance of a vehicle having an internal combustion engine 有权与内燃发动机的改进机动车辆性能的方法
公开(公告)号：EP1134401A3
公开(公告)日：2004-10-06
申请号：EP01302351.0
申请日：2001-03-14
CPC分类号： F01N3/0842 , F01N2570/04 , F02D41/0275 , F02D41/028 , F02D41/1463 , Y02T10/24
摘要： An engine control system for managing lean operation of an internal combustion engine coupled to a lean NOx trap (72) uses an indication of vehicle activity. A target amount of tailpipe emission per distance is adjusted based on the vehicle activity indication. Then, engine air-fuel ratio is controlled based on the adjusted target amount of tailpipe emission per distance. Also, the indication of vehicle activity is used to enable decontamination cycles of the lean NOx trap (72).
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公开(公告)号：EP1134376A3
公开(公告)日：2003-03-26
申请号：EP01302372.6
申请日：2001-03-14
CPC分类号： F01N3/0864 , F01N3/0814 , F01N3/0842 , F01N13/009 , F01N2250/12 , F01N2430/06 , F02D41/0275 , F02D41/146 , F02D41/1462 , F02D41/1463 , F02D2200/0806 , F02D2200/0811 , Y02T10/24
摘要： An engine control system of an internal combustion engine coupled to a NOx trap (72) uses a integrated difference between NOx exiting the trap (72) and NOx entering the trap (72) to determine NOx storage capacity. NOx exiting the trap is measured by a NOx sensor downstream of the trap. NOx entering the trap (72) is determined based on engine operating conditions. The values are integrated until the ratio of NOx exiting to NOx entering reaches a predetermined threshold.
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9.发明公开Method and apparatus for measuring the performance of an emissions control device 审中-公开用于测量排气控制装置的性能参数的方法和装置
公开(公告)号：EP1134388A2
公开(公告)日：2001-09-19
申请号：EP01302336.1
申请日：2001-03-14
CPC分类号： F01N3/0864 , F01N3/0814 , F01N3/0842 , F01N13/009 , F01N2250/12 , F01N2430/06 , F02D41/0275 , F02D41/1462 , F02D41/1463 , F02D2200/0802 , F02D2200/0806 , F02D2200/0811
摘要： A method and apparatus for controlling the operation of a "lean-burn" internal combustion engine (12) in co-operation with an exhaust gas purification system having an emissions control device (34,36) capable of alternatively storing and releasing an exhaust gas constituent, such as NO x , when exposed to exhaust gases that are lean and rich of stoichiometry, respectively, wherein a measure of the efficiency of the device (34,36) to remove the exhaust gas constituent from engine exhaust gas is determined, and a purge event for releasing previously-stored NO x is initiated when the efficiency measure falls below a threshold value.
摘要翻译： 一种用于控制操作的方法和装置“贫燃”共同操作与内燃发动机（12）在排气净化系统具有在排放控制装置（34,36），其能够可选地存储和排出气体的释放 构成,:如NOx，当暴露于排气并是稀和浓化学计量，分别worin设备（34,36）的效率的量度，以除去从发动机废气的废气成分是确定的开采，以及 用于释放先前储存的NOx净化事件启动时，如果低于阈值的效率的措施。
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公开(公告)号：EP1134378A2
公开(公告)日：2001-09-19
申请号：EP01302322.1
申请日：2001-03-14
CPC分类号： F01N3/0842 , F01N11/00 , F01N11/007 , F01N2550/03 , F01N2560/026 , F02D41/0275 , F02D41/1441 , F02D41/1454 , F02D41/1458 , F02D41/146 , F02D41/1462 , F02D41/1463 , F02D41/148 , F02D41/1495 , F02D2200/0806 , Y02T10/24 , Y02T10/47
摘要： An engine diagnostic system for use with an internal combustion engine (11) coupled to a lean NOx trap (72) with a sensor coupled downstream of the trap (72). The sensor provides two output signals, one indicative of an air-fuel ratio and the second indicative of a NOx concentration. Construction of the sensor (140) insists that proper indication of NOx concentration is dependent upon proper operation of the first output signal. Degradation of the NOx concentration signal is determined when the first output signal has degraded.
摘要翻译： 一种与内燃机（11）一起使用的发动机诊断系统，所述内燃机（11）与耦合到所述收集器（72）下游的传感器连接到贫NOx收集器（72）。 传感器提供两个输出信号，一个表示空燃比，第二个表示NOx浓度。 传感器（140）的结构坚持认为，NOx浓度的适当指示取决于第一输出信号的正确操作。 当第一输出信号劣化时，确定NOx浓度信号的劣化。
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