会员体验
专利管家(专利管理)
工作空间(专利管理)
风险监控(情报监控)
数据分析(专利分析)
侵权分析(诉讼无效)
联系我们
交流群
官方交流:
QQ群: 891211   
微信请扫码    >>>
现在联系顾问~
热词
    • 1. 发明申请
    • ABNORMALITY DIAGNOSTIC DEVICE OF INTERNAL COMBUSTION ENGINE WITH TURBOCHARGER
    • 内燃机与涡轮增压器异常诊断装置
    • US20110219861A1
    • 2011-09-15
    • US13044021
    • 2011-03-09
    • Ryozo KAYAMAToshihiko TanakaMasahiro Kubo
    • Ryozo KAYAMAToshihiko TanakaMasahiro Kubo
    • G01M15/10
    • F02D41/22F02D41/0007F02D41/0085Y02T10/40
    • When a wastegate valve, which opens and closes an exhaust bypass passage bypassing an exhaust turbine, is open, exhaust gases of respective cylinders bypass the exhaust turbine and pass a sensing point of an air-fuel ratio sensor downstream of the exhaust turbine. Accordingly, the exhaust gases of the respective cylinders can be avoided from being mixed by the exhaust turbine, so an influence of an inter-cylinder variation in an air-fuel ratio due to an inter-cylinder imbalance abnormality becomes apt to appear in an output waveform of the air-fuel ratio sensor. Therefore, existence or nonexistence of the inter-cylinder imbalance abnormality is determined based on the output of the air-fuel ratio sensor when the wastegate valve is open. Eventually, the existence or nonexistence of the inter-cylinder imbalance abnormality can be determined accurately, thereby improving detection accuracy of the inter-cylinder imbalance abnormality.
    • 当打开和关闭旁路排气涡轮机的排气旁通通道的废气门打开时,各个气缸的废气旁路排气涡轮并将排气涡轮下游的空燃比传感器的感测点通过。 因此,可以避免各气缸的排气被排气涡轮混合,因此,由于气缸内不平衡异常引起的气缸内的变化对空燃比的影响容易出现在输出 空燃比传感器的波形。 因此,当排气门阀打开时,基于空燃比传感器的输出来确定气缸间不平衡异常的存在或不存在。 最终,可以精确地确定气缸内不平衡异常的存在或不存在,从而提高气缸间不平衡异常的检测精度。
    • 5. 发明授权
    • Exhaust gas purifying apparatus for internal combustion engine
    • 内燃机用废气净化装置
    • US08051641B2
    • 2011-11-08
    • US11991740
    • 2006-10-13
    • Junichi KakoShinichi SoejimaRyozo Kayama
    • Junichi KakoShinichi SoejimaRyozo Kayama
    • F01N3/00
    • B01D53/9495F01N11/002F01N11/005F01N2560/06F02D41/0235F02D41/1446F02D2200/0804Y02T10/47
    • The present invention has an object to provide an exhaust gas purifying apparatus for an internal combustion engine capable of obtaining accurate temperature information relating to a catalyst placed in an exhaust passage of the internal combustion engine. The degree of influence emthc of a catalyst inlet gas temperature and catalyst rear end temperature ethuf[end] is calculated (Step 102). An estimated value ethco of an outlet gas temperature is calculated by weighted averaging the inlet gas temperature and the catalyst rear end temperature ethuf[end] considering the degree of influence emthc (Step 104). A temperature correction coefficient ekthuf[x] for each region of the catalyst is calculated as a function f(emthc) of the degree of influence emthc (Step 108). A deviation between the outlet gas temperature estimated value ethco and a measured value of the outlet gas temperature is multiplied by the temperature correction coefficient ekthuf[x] to calculate an estimated value correction amount ecthuf[x] (Step 110). The estimated value correction amount ecthuf[x] is added to a catalyst temperature estimated value (Step 114).
    • 本发明的目的是提供一种内燃机的排气净化装置,其能够获得与内燃机的排气通道中的催化剂有关的精确的温度信息。 计算催化剂入口气体温度和催化剂后端温度流速的影响程度(结束)(步骤102)。 考虑到影响程度(步骤104),对入口气体温度和催化剂后端温度等级进行加权平均,计算出口气体温度的估计值。 计算催化剂的每个区域的温度校正系数ekthuf [x]作为影响程度的函数f(emthc)(步骤108)。 出口气体温度估计值ethco与出口气体温度的测量值之间的偏差乘以温度校正系数ekthuf [x],以计算估计值校正量ecthuf [x](步骤110)。 将估计值校正量ecthuf [x]加到催化剂温度估计值(步骤114)。
    • 6. 发明申请
    • Exhaust Gas Purifying Apparatus for Internal Combustion Engine
    • 内燃机废气净化装置
    • US20100047133A1
    • 2010-02-25
    • US11991740
    • 2006-10-13
    • Junichi KakoShinichi SoejimaRyozo Kayama
    • Junichi KakoShinichi SoejimaRyozo Kayama
    • B01D53/94F01N3/20F02D45/00
    • B01D53/9495F01N11/002F01N11/005F01N2560/06F02D41/0235F02D41/1446F02D2200/0804Y02T10/47
    • The present invention has an object to provide an exhaust gas purifying apparatus for an internal combustion engine capable of obtaining accurate temperature information relating to a catalyst placed in an exhaust passage of the internal combustion engine. The degree of influence emthc of a catalyst inlet gas temperature and catalyst rear end temperature ethuf[end] is calculated (Step 102). An estimated value ethco of an outlet gas temperature is calculated by weighted averaging the inlet gas temperature and the catalyst rear end temperature ethuf[end] considering the degree of influence emthc (Step 104). A temperature correction coefficient ekthuf[x] for each region of the catalyst is calculated as a function f(emthc) of the degree of influence emthc (Step 108). A deviation between the outlet gas temperature estimated value ethco and a measured value of the outlet gas temperature is multiplied by the temperature correction coefficient ekthuf[x] to calculate an estimated value correction amount ecthuf[x] (Step 110). The estimated value correction amount ecthuf[x] is added to a catalyst temperature estimated value (Step 114).
    • 本发明的目的是提供一种内燃机的排气净化装置,其能够获得与内燃机的排气通道中的催化剂有关的精确的温度信息。 计算催化剂入口气体温度和催化剂后端温度流速的影响程度(结束)(步骤102)。 考虑到影响程度(步骤104),对入口气体温度和催化剂后端温度等级进行加权平均,计算出口气体温度的估计值。 计算催化剂的每个区域的温度校正系数ekthuf [x]作为影响程度的函数f(emthc)(步骤108)。 出口气体温度估计值ethco与出口气体温度的测量值之间的偏差乘以温度校正系数ekthuf [x],以计算估计值校正量ecthuf [x](步骤110)。 将估计值校正量ecthuf [x]加到催化剂温度估计值(步骤114)。
    • 7. 发明授权
    • Abnormality diagnostic device of internal combustion engine with turbocharger
    • 具有涡轮增压器的内燃机异常诊断装置
    • US08413497B2
    • 2013-04-09
    • US13044021
    • 2011-03-09
    • Ryozo KayamaToshihiko TanakaMasahiro Kubo
    • Ryozo KayamaToshihiko TanakaMasahiro Kubo
    • G01M15/10
    • F02D41/22F02D41/0007F02D41/0085Y02T10/40
    • When a wastegate valve, which opens and closes an exhaust bypass passage bypassing an exhaust turbine, is open, exhaust gases of respective cylinders bypass the exhaust turbine and pass a sensing point of an air-fuel ratio sensor downstream of the exhaust turbine. Accordingly, the exhaust gases of the respective cylinders can be avoided from being mixed by the exhaust turbine, so an influence of an inter-cylinder variation in an air-fuel ratio due to an inter-cylinder imbalance abnormality becomes apt to appear in an output waveform of the air-fuel ratio sensor. Therefore, existence or nonexistence of the inter-cylinder imbalance abnormality is determined based on the output of the air-fuel ratio sensor when the wastegate valve is open. Eventually, the existence or nonexistence of the inter-cylinder imbalance abnormality can be determined accurately, thereby improving detection accuracy of the inter-cylinder imbalance abnormality.
    • 当打开和关闭旁路排气涡轮机的排气旁通通道的废气门打开时,各个气缸的废气旁路排气涡轮并将排气涡轮下游的空燃比传感器的感测点通过。 因此,可以避免各气缸的排气被排气涡轮混合,因此,由于气缸内不平衡异常引起的气缸内的变化对空燃比的影响容易出现在输出 空燃比传感器的波形。 因此,当排气门阀打开时,基于空燃比传感器的输出来确定气缸间不平衡异常的存在或不存在。 最终,可以精确地确定气缸内不平衡异常的存在或不存在,从而提高气缸间不平衡异常的检测精度。