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公开(公告)号:US09086393B2
公开(公告)日:2015-07-21
申请号:US13501205
申请日:2010-10-06
申请人: Katsunori Yazawa , Yuji Kimoto
发明人: Katsunori Yazawa , Yuji Kimoto
IPC分类号: G06F11/14 , G01N33/00 , G01N27/419 , G01R31/28
CPC分类号: G01N33/0037 , G01N27/419 , G01N33/007 , G01R31/2829 , Y02A50/245
摘要: A sensor control device including an anomaly diagnosis section. When at least one of a first NOX concentration Ip2W based on the output OP1 of a first differential amplification circuit (210) and a second NOX concentration Ip2N based on the output OP2 of a second differential amplification circuit (220) falls within an anomaly diagnosis range ZN, the difference D between Ip2W and Ip2N is obtained, and the difference D is stored in a difference accumulation buffer BF such that 16 values of the difference D continuously sampled up to the present are stored. The integrated value (difference integral value) Dint of the difference D is obtained. When the difference integrated value Dint becomes equal to or greater than a predetermined value Di0, the sensor control device indicates a diagnosis result of “anomalous.”
摘要翻译: 一种包括异常诊断部分的传感器控制装置。 当基于第一差分放大电路(210)的输出OP1的第一NO x浓度Ip2W和基于第二差分放大电路(220)的输出OP2的第二NO x浓度Ip2N中的至少一个落入异常诊断范围内时 ZN,获得Ip2W和Ip2N之间的差D,并且将差D存储在差分累加缓冲器BF中,从而存储连续采样到目前的差值D的16个值。 获得差值D的积分值(差分积分值)Dint。 当差积分值Dint变得等于或大于预定值Di0时,传感器控制装置指示“异常”的诊断结果。
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公开(公告)号:US20120210174A1
公开(公告)日:2012-08-16
申请号:US13501205
申请日:2010-10-06
申请人: Katsunori Yazawa , Yuji Kimoto
发明人: Katsunori Yazawa , Yuji Kimoto
IPC分类号: G06F11/14
CPC分类号: G01N33/0037 , G01N27/419 , G01N33/007 , G01R31/2829 , Y02A50/245
摘要: A sensor control device including an anomaly diagnosis section. When at least one of a first NOX concentration Ip2W based on the output OP1 of a first differential amplification circuit (210) and a second NOX concentration Ip2N based on the output OP2 of a second differential amplification circuit (220) falls within an anomaly diagnosis range ZN, the difference D between Ip2W and Ip2N is obtained, and the difference D is stored in a difference accumulation buffer BF such that 16 values of the difference D continuously sampled up to the present are stored. The integrated value (difference integral value) Dint of the difference D is obtained. When the difference integrated value Dint becomes equal to or greater than a predetermined value Di0, the sensor control device indicates a diagnosis result of “anomalous.”
摘要翻译: 一种包括异常诊断部分的传感器控制装置。 当基于第一差分放大电路(210)的输出OP1的第一NO x浓度Ip2W和基于第二差分放大电路(220)的输出OP2的第二NO x浓度Ip2N中的至少一个落入异常诊断范围内时 ZN,获得Ip2W和Ip2N之间的差D,并且将差D存储在差分累加缓冲器BF中,从而存储连续采样到目前的差值D的16个值。 获得差值D的积分值(差分积分值)Dint。 当差积分值Dint变得等于或大于预定值Di0时,传感器控制装置指示“异常”的诊断结果。
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公开(公告)号:US08417413B2
公开(公告)日:2013-04-09
申请号:US13415531
申请日:2012-03-08
申请人: Yasuhiro Ishiguro , Katsunori Yazawa , Yuji Kimoto
发明人: Yasuhiro Ishiguro , Katsunori Yazawa , Yuji Kimoto
IPC分类号: G06F19/00
CPC分类号: F02D41/123 , F02D41/1456 , F02D41/2441 , F02D41/2454 , F02D41/2474 , F02D41/2477 , G01N27/4175
摘要: In an oxygen sensor control apparatus, after start of fuel cut, the weighted average Ipd of corrected values obtained by multiplying the output value of a mounted oxygen sensor by a correction coefficient Kp is obtained as a representative value Ipe, representing the corrected values in the fuel cut period (S19). In the case where the number of times the representative value Ipe is continuously judged not to fall outside a second range (S21: NO) and to fall outside a first range (S23: YES) reaches 10 (a first number of times) (S26: YES), a new correction coefficient Kp is computed (S27). In the case where the number of times the representative value Ipe is continuously judged to fall outside the second range (S21: YES) reaches 4 (a second number of times smaller than the first number of times) (S29: YES), a new correction coefficient Kp is computed (S30).
摘要翻译: 在氧传感器控制装置中,在开始燃料切断之后,将通过将安装的氧传感器的输出值乘以校正系数Kp而获得的校正值的加权平均Ipd作为代表值Ipe获得,代表值 燃料切断期(S19)。 在代表值Ipe连续判断为不超出第二范围(S21:否)并落在第一范围(S23:是)之外的次数达到10(第一次)的情况下(S26 :是),计算新的校正系数Kp(S27)。 在代表值Ipe连续判断为超出第二范围的次数(S21:是)的情况下达到4(比第一次数小的次数)(S29:是),新的 计算校正系数Kp(S30)。
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公开(公告)号:US09020686B2
公开(公告)日:2015-04-28
申请号:US13245718
申请日:2011-09-26
CPC分类号: G01R31/007 , G01R31/025 , G01R31/3606
摘要: A sensor control apparatus connected to a gas sensor includes a microcomputer containing a ROM (first storage section), and an EEPROM (second storage section) independently of the ROM. The ROM stores an anomaly diagnosis program containing at least one type of anomaly determination process. The EEPROM stores one or more flags set so as to represent whether the corresponding anomaly determination process is valid or invalid. The states of the one or more flags can be readily changed from an externally connected PC. A CPU executes a series of processing steps of the anomaly determination processes, and then obtains a determination result thereof when the CPU determines that the anomaly determination process is valid, with reference to the one or more flags.
摘要翻译: 连接到气体传感器的传感器控制装置包括独立于ROM的包含ROM(第一存储部分)和EEPROM(第二存储部分)的微型计算机。 ROM存储包含至少一种类型的异常确定过程的异常诊断程序。 EEPROM存储一个或多个标志,以便表示对应的异常确定处理是有效还是无效。 可以从外部连接的PC容易地改变一个或多个标志的状态。 CPU执行异常确定处理的一系列处理步骤,然后参考一个或多个标志,当CPU确定异常确定处理有效时,获得其确定结果。
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公开(公告)号:US08165831B2
公开(公告)日:2012-04-24
申请号:US12411825
申请日:2009-03-26
IPC分类号: G01F17/00
CPC分类号: G01F23/0069 , G01F25/0061
摘要: A water level measuring apparatus and a water level measuring method, in which a water level L0 of a liquid is read from a water level indicator secured to a liquid tank, and a filter value FLT is calculated by applying a filter with a time constant greater than one second to the water level L0, and the filter value FLT is output as a final water level L. Accordingly, even if the surface sloshes and the water level L0 fluctuates up and down, the water level L0 is smoothed by the filter. Hence there is little influence of the liquid sloshing, and the water level measurement accuracy can be improved.
摘要翻译: 水位测量装置和水位测量方法,其中从固定到液体罐的水位指示器读取液体的水位L0,并且通过施加时间常数更大的过滤器来计算滤波器值FLT 超过水位L0的1秒,滤波器值FLT作为最终水位L输出。因此,即使表面晃动,水位L0上下波动,水位L0被滤波器平滑化。 因此,液体晃动几乎没有影响,可以提高水位测量精度。
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公开(公告)号:US20110166816A1
公开(公告)日:2011-07-07
申请号:US12978066
申请日:2010-12-23
IPC分类号: G06F19/00
CPC分类号: F02D41/2454 , F02D41/123 , F02D41/1454 , F02D41/2441 , F02D41/2474
摘要: An oxygen sensor control apparatus (10) obtains a correction coefficient for calibrating the relation between oxygen concentration and an output value of an oxygen sensor (20), when a fuel cut operation of an internal combustion engine (100) is performed. The apparatus includes average output value calculation means; inter-fuel-cut average output value calculation means; and correction coefficient calculation means.
摘要翻译: 当执行内燃机(100)的燃料切断操作时,氧传感器控制装置(10)获得用于校准氧浓度与氧传感器(20)的输出值之间的关系的校正系数。 该装置包括平均输出值计算装置; 燃料间切割平均输出值计算装置; 和校正系数计算装置。
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公开(公告)号:US08527230B2
公开(公告)日:2013-09-03
申请号:US12978066
申请日:2010-12-23
IPC分类号: G01C25/00
CPC分类号: F02D41/2454 , F02D41/123 , F02D41/1454 , F02D41/2441 , F02D41/2474
摘要: An oxygen sensor control apparatus (10) obtains a correction coefficient for calibrating the relation between oxygen concentration and an output value of an oxygen sensor (20), when a fuel cut operation of an internal combustion engine (100) is performed. The apparatus includes average output value calculation means; inter-fuel-cut average output value calculation means; and correction coefficient calculation means.
摘要翻译: 当执行内燃机(100)的燃料切断操作时,氧传感器控制装置(10)获得用于校准氧浓度与氧传感器(20)的输出值之间的关系的校正系数。 该装置包括平均输出值计算装置; 燃料间切割平均输出值计算装置; 和校正系数计算装置。
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公开(公告)号:US08006483B2
公开(公告)日:2011-08-30
申请号:US12411891
申请日:2009-03-26
申请人: Hideki Matsunaga , Toshikazu Katou , Hiroyuki Kurita , Shinji Kumazawa , Masayuki Motomura , Katsunori Yazawa
发明人: Hideki Matsunaga , Toshikazu Katou , Hiroyuki Kurita , Shinji Kumazawa , Masayuki Motomura , Katsunori Yazawa
IPC分类号: F01N3/00
CPC分类号: F01N3/208 , B01D2251/2062 , F01N3/106 , F01N3/108 , F01N11/00 , F01N13/009 , F01N2550/05 , F01N2570/18 , F01N2610/02 , F01N2610/1406 , F01N2610/146 , F01N2900/0404 , F01N2900/0408 , F01N2900/0422 , F01N2900/08 , F01N2900/1811 , F01N2900/1814 , Y02T10/24 , Y02T10/47
摘要: In an exhaust emission purifying apparatus for reductively purifying NOx in the exhaust emission by using a liquid reducing agent or its precursor, to be referred to as “liquid reducing agent” herein, a dosing flow rate of the liquid reducing agent according to engine operating conditions is computed, and the dosing of the liquid reducing agent is controlled based on the computed dosing flow rate, and also, it is judged whether or not a supply system of the liquid reducing agent is failed, based on a ratio between an integrated amount obtained by sequentially integrating the dosing flow rate and a consumed amount of the liquid reducing agent.
摘要翻译: 在通过使用液体还原剂或其前驱物(在本文中称为“液体还原剂”)对排气中的NOx进行还原性净化的废气净化装置中,根据发动机工作条件的液体还原剂的计量流量 ,并且基于所计算的计量流量来控制液体还原剂的计量,并且还基于所获得的积分量之间的比率来判断液体还原剂的供给系统是否失效 通过顺序地整合计量流量和消耗量的液体还原剂。
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公开(公告)号:US20100086446A1
公开(公告)日:2010-04-08
申请号:US12411891
申请日:2009-03-26
申请人: Hideki Matsunaga , Toshikazu Katou , Hiroyuki Kurita , Shinji Kumazawa , Masayuki Motomura , Katsunori Yazawa
发明人: Hideki Matsunaga , Toshikazu Katou , Hiroyuki Kurita , Shinji Kumazawa , Masayuki Motomura , Katsunori Yazawa
IPC分类号: B01D53/94
CPC分类号: F01N3/208 , B01D2251/2062 , F01N3/106 , F01N3/108 , F01N11/00 , F01N13/009 , F01N2550/05 , F01N2570/18 , F01N2610/02 , F01N2610/1406 , F01N2610/146 , F01N2900/0404 , F01N2900/0408 , F01N2900/0422 , F01N2900/08 , F01N2900/1811 , F01N2900/1814 , Y02T10/24 , Y02T10/47
摘要: In an exhaust emission purifying apparatus for reductively purifying NOx in the exhaust emission by using a liquid reducing agent or its precursor, to be referred to as “liquid reducing agent” herein, a dosing flow rate of the liquid reducing agent according to engine operating conditions is computed, and the dosing of the liquid reducing agent is controlled based on the computed dosing flow rate, and also, it is judged whether or not a supply system of the liquid reducing agent is failed, based on a ratio between an integrated amount obtained by sequentially integrating the dosing flow rate and a consumed amount of the liquid reducing agent.
摘要翻译: 在通过使用液体还原剂或其前驱物(在本文中称为“液体还原剂”)对排气中的NOx进行还原性净化的废气净化装置中,根据发动机工作条件的液体还原剂的计量流量 ,并且基于所计算的计量流量来控制液体还原剂的计量,并且还基于所获得的积分量之间的比率来判断液体还原剂的供给系统是否失效 通过顺序地整合计量流量和消耗量的液体还原剂。
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公开(公告)号:US20100076702A1
公开(公告)日:2010-03-25
申请号:US12411825
申请日:2009-03-26
IPC分类号: G01F23/00
CPC分类号: G01F23/0069 , G01F25/0061
摘要: A water level measuring apparatus and a water level measuring method, in which a water level L0 of a liquid is read from a water level indicator secured to a liquid tank, and a filter value FLT is calculated by applying a filter with a time constant greater than one second to the water level L0, and the filter value FLT is output as a final water level L. Accordingly, even if the surface sloshes and the water level L0 fluctuates up and down, the water level L0 is smoothed by the filter. Hence there is little influence of the liquid sloshing, and the water level measurement accuracy can be improved.
摘要翻译: 水位测量装置和水位测量方法,其中从固定到液体罐的水位指示器读取液体的水位L0,并且通过施加时间常数更大的过滤器来计算滤波器值FLT 超过水位L0的1秒,滤波器值FLT作为最终水位L输出。因此,即使表面晃动,水位L0上下波动,水位L0被滤波器平滑化。 因此,液体晃动几乎没有影响,可以提高水位测量精度。
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