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    • 51. 发明授权
    • Intake air parameter estimating device for internal combustion engine
    • 内燃机进气参数估算装置
    • US07139655B2
    • 2006-11-21
    • US11066553
    • 2005-02-28
    • Takashi NakazawaTakeshi Suzuki
    • Takashi NakazawaTakeshi Suzuki
    • F02D45/00
    • F02D41/32F02D41/18F02D2200/0406F02D2200/0408
    • An intake parameter estimating device is provided for estimating a tuning frequency of an internal combustion engine, which in turn can be used to estimate an intake air pressure of the internal combustion engine. The intake parameter estimating device basically has a fundamental frequency calculating section, an engine rotational speed detecting section and a tuning frequency calculating section. The fundamental frequency calculating section calculates a fundamental frequency of a pressure wave inside an air intake pipe based on a shape of the air intake pipe and speed of sound. The engine rotational speed detecting section detects an engine rotational speed. The tuning frequency calculating section calculates a tuning frequency of the pressure wave inside the air intake pipe based on the fundamental frequency and the engine rotational speed. The tuning frequency can then be used to estimate the intake air pressure of the internal combustion engine.
    • 提供了一种用于估计内燃机的调谐频率的进气参数估计装置,其也可以用于估计内燃机的进气压力。 进气参数估计装置基本上具有基频计算部,发动机转速检测部和调谐频率计算部。 基频计算部分基于进气管的形状和声速来计算进气管内的压力波的基频。 发动机转速检测部检测发动机转速。 调谐频率计算部分基于基频和发动机转速来计算进气管内的压力波的调谐频率。 然后可以使用调谐频率来估计内燃机的进气压力。
    • 52. 发明申请
    • EGR control unit and method for an internal combustion engine
    • EGR控制单元和内燃机的方法
    • US20060102148A1
    • 2006-05-18
    • US11159403
    • 2005-06-23
    • Takashi NakazawaTakanobu Ikeuchi
    • Takashi NakazawaTakanobu Ikeuchi
    • F02M7/00F02M25/07
    • F02D41/005F02D41/1498F02D41/2464Y02T10/47
    • An EGR control method and unit for an internal combustion engine includes an EGR passage configured to recirculate a portion of an exhaust gas from an exhaust system to an intake system. An EGR valve, disposed in the EGR passage, is configured to control an amount of EGR, and an index calculator is configured to calculate a surge-increase index according to a variance in rotation of the engine. A detector is configured to compare the surge-increase index with a determination threshold to detect a surge increase, an adjuster is configured to adjust a correction value relative to a target amount of the EGR according to an output of the detector, and a target-amount calculator is configured to calculate the target amount of the EGR by subtracting the correction value from a reference target amount of the EGR determined based upon an engine operating condition.
    • 用于内燃机的EGR控制方法和单元包括:EGR通路,其构造成将废气的一部分从排气系统再循环到进气系统。 设置在EGR通路中的EGR阀被配置为控制EGR量,并且指标计算器被配置为根据发动机的旋转方差来计算喘振增加指数。 检测器被配置为将喘振增加指数与确定阈值进行比较以检测浪涌增加,调整器被配置为根据检测器的输出来调整相对于目标量的EGR的校正值, 量计算器被配置为通过从基于发动机操作条件确定的EGR的参考目标量中减去校正值来计算EGR的目标量。
    • 53. 发明授权
    • Estimation of intake gas temperature in internal combustion engine
    • 内燃机进气温度的估计
    • US06980902B2
    • 2005-12-27
    • US10974879
    • 2004-10-28
    • Takashi Nakazawa
    • Takashi Nakazawa
    • F02D45/00F02D41/00F02D41/18G06F19/00
    • F02D41/0062F02D41/0002F02D41/003F02D41/0072F02D2041/007F02D2200/0402F02D2200/0414Y02T10/42Y02T10/47
    • Air is aspirated into a combustion chamber (5) of an internal combustion engine (1) through an intake passage (3) and an intake valve (15). Purge gas and externally recirculated exhaust gas are mixed into the air in the intake passage (3) through a purge gas passage (64) and an exhaust gas recirculation passage (25). A controller (31) estimates temperature variation in the air inside the intake passage (3) from the inlet to the intake passage (3) to the point where the purge gas and externally recirculated exhaust gas are mixed into the air (S2, S3). The temperature of the gas that is aspirated into the combustion chamber (5) is estimated accurately on the basis of the mass, specific heat, and estimated temperature of the air, and the mass, specific heat, and temperature of the purge gas and externally recirculated exhaust gas that are mixed into the air (S4).
    • 空气通过进气通道(3)和进气门(15)吸入内燃机(1)的燃烧室(5)中。 吹扫气体和外部再循环废气通过净化气体通道(64)和废气再循环通道(25)混入进气通道(3)中的空气中。 控制器(31)估计进气通道(3)内从入口到进气通道(3)的空气中的空气的温度变化到净化气体和外部再循环废气混入空气中的点(S 2,S 3)。 基于空气的质量,比热和估计温度以及吹扫气体的质量,比热和温度以及外部温度,精确地估计吸入燃烧室(5)的气体的温度 混合到空气中的再循环废气(S 4)。
    • 54. 发明申请
    • Intake air parameter estimating device for internal combustion engine
    • 内燃机进气参数估算装置
    • US20050234630A1
    • 2005-10-20
    • US11066553
    • 2005-02-28
    • Takashi NakazawaTakeshi Suzuki
    • Takashi NakazawaTakeshi Suzuki
    • F02D41/32F02D45/00
    • F02D41/32F02D41/18F02D2200/0406F02D2200/0408
    • An intake parameter estimating device is provided for estimating a tuning frequency of an internal combustion engine, which in turn can be used to estimate an intake air pressure of the internal combustion engine. The intake parameter estimating device basically has a fundamental frequency calculating section, an engine rotational speed detecting section and a tuning frequency calculating section. The fundamental frequency calculating section calculates a fundamental frequency of a pressure wave inside an air intake pipe based on a shape of the air intake pipe and speed of sound. The engine rotational speed detecting section detects an engine rotational speed. The tuning frequency calculating section calculates a tuning frequency of the pressure wave inside the air intake pipe based on the fundamental frequency and the engine rotational speed. The tuning frequency can then be used to estimate the intake air pressure of the internal combustion engine.
    • 提供了一种用于估计内燃机的调谐频率的进气参数估计装置,其也可以用于估计内燃机的进气压力。 进气参数估计装置基本上具有基频计算部,发动机转速检测部和调谐频率计算部。 基频计算部分基于进气管的形状和声速来计算进气管内的压力波的基频。 发动机转速检测部检测发动机转速。 调谐频率计算部分基于基频和发动机转速来计算进气管内的压力波的调谐频率。 然后可以使用调谐频率来估计内燃机的进气压力。
    • 56. 发明授权
    • Movable contact structure and movable contact attaching method of slide switch
    • 滑动开关的可移动接触结构和可动触头安装方法
    • US06872906B2
    • 2005-03-29
    • US10667594
    • 2003-09-23
    • Takashi NakazawaYukihiro Kakegawa
    • Takashi NakazawaYukihiro Kakegawa
    • F16H59/08H01H11/00H01H15/06
    • H01H15/06H01H11/0056H01H2300/02Y10T29/49105
    • To enable to facilitate integration and part control by reducing a number of parts and a number of integrating steps and restrain electric contact performance from being deteriorated by preventing play, in a slide switch including a pole board (3) having a fixed contact and a movable board (11) made of a resin fixedly supporting a base portion (21) of a movable contact (19) and capable of sliding contact portions (25a, 25b, 25c, 25d, 25e), at a front end of the movable contact (19) relative to the fixed contact by moving along the pole board (3), the base portion (21) of the movable contact (19) is formed in a shape of a flat plate, the base portion (21) of the movable contact (19) is fixed to the movable board (11) by insert-molding of the resin and the movable contact (19) is inclinedly supported by the movable board (11).
    • 为了能够通过减少多个部件和多个积分步骤来促进集成和部件控制,并且通过防止游隙来限制电接触性能劣化,在包括具有固定触点的极板(3)和可移动的 板(11),其固定地支撑可动触头(19)的基部(21)并且能够在可动触点的前端滑动接触部分(25a,25b,25c,25d,25e) 如图19所示,通过沿着极板(3)移动而相对于固定触点,可动触头(19)的基部(21)形成为平板状,可动触点的基部(21) (19)通过树脂的嵌入成型固定到可动板(11)上,并且可动触头(19)由可动板(11)倾斜地支撑。