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公开(公告)号:US20050229685A1
公开(公告)日:2005-10-20
申请号:US11075754
申请日:2005-03-10
申请人: Hideki Sakamoto , Satoshi Yamaguchi , Yuuichi Shimasaki , Makoto Kobayashi , Masaki Ueno , Mamoru Hasegawa
发明人: Hideki Sakamoto , Satoshi Yamaguchi , Yuuichi Shimasaki , Makoto Kobayashi , Masaki Ueno , Mamoru Hasegawa
CPC分类号: F02P19/028 , F02D35/023 , F23Q7/001 , F23Q2007/002 , G01L23/22
摘要: An in-cylinder pressure detection device which is capable of ensuring stable detection accuracy irrespective of tightening torque applied in mounting the in-cylinder pressure detection device and thermal expansion of component parts of the same. A housing 21 has a top wall 22a and a bottom wall 22b opposed to each other, and is screwed into the body of an internal combustion engine. An inner member 24 extends through the housing 21 such that one end thereof projects into a cylinder C, and has a flange part 24b accommodated in the housing 21. A first piezoelectric element 11c is accommodated in the housing 21 and sandwiched between the bottom wall 22b and the flange part 24b in a preloaded state, for outputting a first detection signal q1 according to the in-cylinder pressure transmitted via the inner member 24. A second piezoelectric element 12c is accommodated in the housing 21 and sandwiched between the top wall 22a and the flange part 24b in a preloaded state, for outputting a second detection signal q2 according to the in-cylinder pressure transmitted via the inner member 24.
摘要翻译: 无论在安装缸内压力检测装置时施加的紧固扭矩和其组成部件的热膨胀,都能够确保稳定的检测精度的缸内压力检测装置。 壳体21具有彼此相对的顶壁22a和底壁22b,并被拧入内燃机的主体中。 内部构件24延伸穿过壳体21,使得其一端突出到气缸C中,并且具有容纳在壳体21中的凸缘部分24b。 第一压电元件11c容纳在壳体21中并且在预加载状态下夹在底壁22b和凸缘部分24b之间,用于根据经由内部传递的缸内压力输出第一检测信号q 1 会员24。 第二压电元件12c容纳在壳体21中,并且以预加载的状态夹在顶壁22a和凸缘部分24b之间,用于根据通过内部的内部传递的缸内压力输出第二检测信号q 2 会员24。
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公开(公告)号:US07171846B2
公开(公告)日:2007-02-06
申请号:US11075754
申请日:2005-03-10
申请人: Hideki Sakamoto , Satoshi Yamaguchi , Yuuichi Shimasaki , Makoto Kobayashi , Masaki Ueno , Mamoru Hasegawa
发明人: Hideki Sakamoto , Satoshi Yamaguchi , Yuuichi Shimasaki , Makoto Kobayashi , Masaki Ueno , Mamoru Hasegawa
IPC分类号: G01M15/00
CPC分类号: F02P19/028 , F02D35/023 , F23Q7/001 , F23Q2007/002 , G01L23/22
摘要: An in-cylinder pressure detection device which is capable of ensuring stable detection accuracy irrespective of tightening torque applied in mounting the in-cylinder pressure detection device and thermal expansion of component parts of the same. A housing 21 has a top wall 22a and a bottom wall 22b opposed to each other, and is screwed into the body of an internal combustion engine. An inner member 24 extends through the housing 21 such that one end thereof projects into a cylinder C, and has a flange part 24b accommodated in the housing 21. A first piezoelectric element 11c is accommodated in the housing 21 and sandwiched between the bottom wall 22b and the flange part 24b in a preloaded state, for outputting a first detection signal q1 according to the in-cylinder pressure transmitted via the inner member 24. A second piezoelectric element 12c is accommodated in the housing 21 and sandwiched between the top wall 22a and the flange part 24b in a preloaded state, for outputting a second detection signal q2 according to the in-cylinder pressure transmitted via the inner member 24.
摘要翻译: 无论在安装缸内压力检测装置时施加的紧固扭矩和其组成部件的热膨胀,都能够确保稳定的检测精度的缸内压力检测装置。 壳体21具有彼此相对的顶壁22a和底壁22b,并被拧入内燃机的主体中。 内部构件24延伸穿过壳体21,使得其一端突出到气缸C中,并且具有容纳在壳体21中的凸缘部分24b。 第一压电元件11c容纳在壳体21中并且在预加载状态下夹在底壁22b和凸缘部分24b之间,用于根据经由内部传递的缸内压力输出第一检测信号q 1 会员24。 第二压电元件12c容纳在壳体21中,并且以预加载的状态夹在顶壁22a和凸缘部分24b之间,用于根据通过内部的内部传递的缸内压力输出第二检测信号q 2 会员24。
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公开(公告)号:US07268539B2
公开(公告)日:2007-09-11
申请号:US11541148
申请日:2006-09-28
申请人: Kensaku Sato , Masami Tanaka , Tadashi Kubota , Hideki Sakamoto , Makoto Kobayashi , Satoshi Yamaguchi , Mamoru Hasegawa , Yuichi Shimasaki
发明人: Kensaku Sato , Masami Tanaka , Tadashi Kubota , Hideki Sakamoto , Makoto Kobayashi , Satoshi Yamaguchi , Mamoru Hasegawa , Yuichi Shimasaki
IPC分类号: G01B7/30
CPC分类号: G01D5/147
摘要: A pulse signal generator using a magnetic device that can cause a large Barkhausen effect, comprises means having a number of pits and projections and generates pulses according to the behavior of these, the means being capable of moving the pits and projections in a first or second direction, the pits and projections being disposed in the moving direction with some of the projections missing or some of the pits filled. The value of the ratio between the time interval of pulses generated by portions other than a projection-missing portion and the time interval of pulses generated by the projection-missing portion or the value of the ratio between the time interval of pulses generated by portions other than a pit-filled portion and the time interval of pulses generated by the pit-filled portion differs between when the pits and projections move in the first or second direction.
摘要翻译: 使用可引起大的巴克豪森效应的磁性装置的脉冲信号发生器包括具有多个凹坑和突起的装置,并且根据这些的行为产生脉冲,该装置能够将凹坑和突起移动到第一或第二 方向,凹坑和突起沿着移动方向设置,其中一些突起丢失或一些凹坑被填充。 由投射缺失部分以外的部分产生的脉冲的时间间隔与由投影缺失部分产生的脉冲的时间间隔之间的比率的值或由其他部分产生的脉冲的时间间隔之间的比率的值之间的值 并且由凹坑填充部分产生的脉冲的时间间隔在凹坑和突起在第一或第二方向上移动时不同。
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公开(公告)号:US20070075704A1
公开(公告)日:2007-04-05
申请号:US11541148
申请日:2006-09-28
申请人: Kensaku Sato , Masami Tanaka , Tadashi Kubota , Hideki Sakamoto , Makoto Kobayashi , Satoshi Yamaguchi , Mamoru Hasegawa , Yuichi Shimasaki
发明人: Kensaku Sato , Masami Tanaka , Tadashi Kubota , Hideki Sakamoto , Makoto Kobayashi , Satoshi Yamaguchi , Mamoru Hasegawa , Yuichi Shimasaki
CPC分类号: G01D5/147
摘要: A pulse signal generator using a magnetic device that can cause a large Barkhausen effect, comprises means having a number of pits and projections and generates pulses according to the behavior of these, the means being capable of moving the pits and projections in a first or second direction, the pits and projections being disposed in the moving direction with some of the projections missing or some of the pits filled. The value of the ratio between the time interval of pulses generated by portions other than a projection-missing portion and the time interval of pulses generated by the projection-missing portion or the value of the ratio between the time interval of pulses generated by portions other than a pit-filled portion and the time interval of pulses generated by the pit-filled portion differs between when the pits and projections move in the first or second direction.
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公开(公告)号:US20080120013A1
公开(公告)日:2008-05-22
申请号:US11976659
申请日:2007-10-26
IPC分类号: F02D41/30
CPC分类号: F02D35/023 , F02D35/028 , F02D41/005 , F02D41/008 , F02D41/403 , F02D2041/0067 , F02D2200/0612 , Y02T10/44 , Y02T10/47
摘要: A control system for an internal combustion engine having fuel injectors for injecting fuel into a combustion chamber of the engine. A fuel property is estimated based on a combustion state of the fuel injected into at least one cylinder of the engine. The fuel injectors are controlled so that a specific amount of fuel is injected into the at least one cylinder and an amount of fuel corresponding to an operating condition of the engine is injected into cylinders other than the at least one cylinder. An additional fuel injection is performed after the fuel injection of the specific amount with respect to the at least one cylinder, for example, when a torque difference parameter indicative of a difference between a torque generated by the at least one cylinder and a torque generated by the other cylinders is equal to or greater than a predetermined threshold value.
摘要翻译: 一种用于内燃机的控制系统,其具有用于将燃料喷射到发动机的燃烧室中的燃料喷射器。 基于喷射到发动机的至少一个气缸中的燃料的燃烧状态来估计燃料特性。 控制燃料喷射器,使得特定量的燃料被喷射到至少一个气缸中,并且与发动机的运行状态相对应的燃料量被喷射到除了至少一个气缸之外的气缸中。 例如,当指示由至少一个气缸产生的转矩与由至少一个气缸产生的转矩之间的差异的转矩差参数与由至少一个气缸产生的转矩之间的差异时,在相对于至少一个气缸的燃料喷射特定量之后执行额外的燃料喷射, 其他气缸等于或大于预定阈值。
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公开(公告)号:US20080262699A1
公开(公告)日:2008-10-23
申请号:US11898275
申请日:2007-09-11
IPC分类号: F02D41/00
CPC分类号: F02D41/0025 , F02D19/061 , F02D19/0636 , F02D19/0649 , F02D35/023 , F02D41/0055 , F02D41/2416 , F02D41/403 , F02D2200/0612 , F02M26/06 , F02M26/07 , F02M26/15 , F02M26/35 , F02M26/48 , Y02T10/36 , Y02T10/47
摘要: A control system for an internal combustion engine, which is capable of estimating a property of fuel accurately even when the engine is in an operating condition other than idling. An in-cylinder pressure sensor detects an amount of change in pressure in a cylinder #1 of the engine as a pressure change amount. An ECU calculates an amount of heat released in the cylinder #1 as a heat release amount, according to the pressure change amount. A vehicle speed sensor, a crank angle sensor, and an accelerator pedal opening sensor detect load on the engine. The ECU estimates a cetane number of fuel based on the calculated heat release amount and the detected load on the engine.
摘要翻译: 一种用于内燃机的控制系统,其即使在发动机处于除空转之外的操作条件下也能够精确地估计燃料的性质。 缸内压力传感器检测发动机的气缸#1中的压力变化量作为压力变化量。 ECU根据压力变化量计算汽缸#1中的排出量作为放热量。 车速传感器,曲柄角传感器和加速器踏板开度传感器检测发动机上的负载。 ECU根据计算出的放热量和发动机检测到的负载来估计燃料的十六烷值。
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公开(公告)号:US07401591B2
公开(公告)日:2008-07-22
申请号:US11591593
申请日:2006-11-02
CPC分类号: F02D41/401 , F02B3/06 , F02D19/061 , F02D19/0636 , F02D19/0649 , F02D19/0689 , F02D35/021 , F02D35/023 , F02D41/0025 , F02D41/1498 , F02D41/3035 , F02D41/403 , F02D2200/0612 , F02D2200/1015 , Y02T10/128 , Y02T10/36 , Y02T10/44
摘要: A control system for an internal combustion engine having at least one fuel injection valve for injecting fuel into a combustion chamber of the engine and burning the injected fuel by compression ignition. A fuel injection control parameter for controlling at least one fuel injection valve is changed. A combustion state of the engine is then detected. A cetane number of the fuel is then estimated based on the changed fuel injection control parameter and the detected combustion state.
摘要翻译: 一种用于内燃机的控制系统,其具有至少一个燃料喷射阀,用于将燃料喷射到发动机的燃烧室中并通过压缩点火燃烧喷射的燃料。 用于控制至少一个燃料喷射阀的燃料喷射控制参数改变。 然后检测发动机的燃烧状态。 然后基于改变的燃料喷射控制参数和检测到的燃烧状态来估计燃料的十六烷值。
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公开(公告)号:US20080051978A1
公开(公告)日:2008-02-28
申请号:US11892698
申请日:2007-08-27
IPC分类号: F02D28/00
CPC分类号: F02D41/0025 , F02D19/0628 , F02D19/0636 , F02D19/0649 , F02D35/023 , F02D35/028 , F02D41/0055 , F02D2200/0612 , F02M26/07 , F02M26/15 , F02M26/48 , Y02T10/36
摘要: A control system for an internal combustion engine, which makes it possible to estimate a fuel property parameter indicative of a property of fuel in use, in a plurality of operation modes of the engine, respectively, to thereby increase the chances of estimation of the fuel property parameter, and select an appropriate one from the estimated fuel property parameters to thereby more appropriately control the engine. The fuel property parameter is estimated when the detected operating conditions of the engine correspond to any of a plurality of operation modes. Depending on a plurality of fuel property parameters estimated in respective operation modes, one of the fuel property parameters is determined as the fuel property parameter for control of the engine.
摘要翻译: 一种用于内燃机的控制系统,其能够分别在发动机的多个操作模式中估计表示使用中的燃料的性质的燃料特性参数,从而增加燃料估计的机会 属性参数,并根据估计的燃料特性参数选择合适的参数,从而更适当地控制发动机。 当检测到的发动机的操作条件对应于多种操作模式中的任何一种时,估计燃料特性参数。 根据在各个操作模式中估计的多个燃料特性参数,确定燃料特性参数之一作为用于发动机控制的燃料特性参数。
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公开(公告)号:US07246596B2
公开(公告)日:2007-07-24
申请号:US11545672
申请日:2006-10-11
CPC分类号: F02D35/028 , F02B3/06 , F02B29/0406 , F02D19/061 , F02D19/0636 , F02D19/0649 , F02D35/023 , F02D35/025 , F02D41/0025 , F02D41/1497 , F02D41/402 , F02D2200/0612 , F02M26/05 , F02M26/48 , Y02T10/36 , Y02T10/44
摘要: A control system for an internal combustion engine that has at least one fuel injection valve for injecting fuel into a combustion chamber of the engine, and burns the injected fuel by compressing an air-fuel mixture in the combustion chamber. An operating condition of the engine and/or a refueling condition of a fuel tank for supplying fuel to the engine are/is detected. At least one operating parameter of the engine is changed when at least one of the engine operating condition and the refueling condition detected by the condition detecting means satisfies a predetermined condition in a predetermined low load operating condition of the engine. A cetane number of the fuel in use is estimated according to an ignition timing of the fuel detected after changing the at least one operating parameter of the engine.
摘要翻译: 一种用于内燃机的控制系统,其具有至少一个用于将燃料喷射到发动机的燃烧室中的燃料喷射阀,并且通过压缩燃烧室中的空气 - 燃料混合物来燃烧喷射的燃料。 检测发动机的运转状况和/或用于向发动机供给燃料的燃料箱的加油条件。 当发动机的预定的低负载运行条件下的条件检测装置检测到的发动机运转条件和加油条件中的至少一个满足预定条件时,改变发动机的至少一个运转参数。 根据在改变发动机的至少一个操作参数之后检测到的燃料的点火正时来估计使用的燃料的十六烷值。
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公开(公告)号:US20070151542A1
公开(公告)日:2007-07-05
申请号:US11591593
申请日:2006-11-02
CPC分类号: F02D41/401 , F02B3/06 , F02D19/061 , F02D19/0636 , F02D19/0649 , F02D19/0689 , F02D35/021 , F02D35/023 , F02D41/0025 , F02D41/1498 , F02D41/3035 , F02D41/403 , F02D2200/0612 , F02D2200/1015 , Y02T10/128 , Y02T10/36 , Y02T10/44
摘要: A control system for an internal combustion engine having at least one fuel injection valve for injecting fuel into a combustion chamber of the engine and burning the injected fuel by compression ignition. A fuel injection control parameter for controlling at least one fuel injection valve is changed. A combustion state of the engine is then detected. A cetane number of the fuel is then estimated based on the changed fuel injection control parameter and the detected combustion state.
摘要翻译: 一种用于内燃机的控制系统,其具有至少一个燃料喷射阀,用于将燃料喷射到发动机的燃烧室中并通过压缩点火燃烧喷射的燃料。 用于控制至少一个燃料喷射阀的燃料喷射控制参数改变。 然后检测发动机的燃烧状态。 然后基于改变的燃料喷射控制参数和检测到的燃烧状态来估计燃料的十六烷值。
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