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    • 33. 发明专利
    • Power generation control device of power generator for vehicle
    • 发电机的发电控制装置
    • JP2006094624A
    • 2006-04-06
    • JP2004276354
    • 2004-09-24
    • Hitachi Car Eng Co LtdHitachi Ltd株式会社日立カーエンジニアリング株式会社日立製作所
    • FUKUYA HAJIMENAGASE MITSURUOSATO MASASUKETAKADA KENJI
    • H02P9/04
    • PROBLEM TO BE SOLVED: To provide a power generation control device of a power generator for a vehicle that can reduce unpleasant vibration by offsetting engine torque that is increased by the restart of fuel injection by a return from a fuel cut at deceleration, and engine torque that is reduced by the switching of a power generation voltage of an alternator, by making timing that switches the power generation voltage of the alternator to a low power generation voltage from a standard power generation voltage synchronized with the return from the fuel cut at deceleration. SOLUTION: The power generation control device of the generator for the vehicle makes the timing that switches the power generation voltage of the alternator to the low power generation voltage from the standard power generation voltage synchronized with the return from the fuel cut at deceleration. COPYRIGHT: (C)2006,JPO&NCIPI
    • 要解决的问题:提供一种用于车辆的发电机的发电控制装置,其能够通过抵消通过从减速时切断的燃料的返回引起的燃料喷射的重新启动而增加的发动机转矩来减少令人不快的振动, 以及通过交流发电电压的切换而减少的发动机扭矩,通过从与燃料切断的返回同步的标准发电电压进行将交流发电机的发电电压切换为低发电电压的定时 减速。 解决方案:用于车辆的发电机的发电控制装置使得从与从减速时切断的燃料的返回同步的标准发电电压将交流发电机的发电电压切换到低发电电压的定时 。 版权所有(C)2006,JPO&NCIPI
    • 37. 发明专利
    • Fuel control device for engine
    • 发动机燃油控制装置
    • JP2008038699A
    • 2008-02-21
    • JP2006212379
    • 2006-08-03
    • Hitachi Ltd株式会社日立製作所
    • TAKADA KENJIOBA HISAHIRO
    • F02D41/14F02D45/00
    • PROBLEM TO BE SOLVED: To correct an amount of fuel injected during transition based on the pressure of a suction pipe and an air/fuel ratio and to accurately control the air/fuel ratio in a fuel control device for an engine.
      SOLUTION: The fuel control device includes an operating condition detection means 51 to detect the operating condition of a vehicle so as to discriminate a transient state, a suction pipe pressure detection means 9 to detect the pressure of the suction pipe of the engine, an air/fuel ratio sensor or O
      2 sensor 25 installed in an exhaust pipe, a basic fuel calculation means 50 to calculate a basic fuel injection amount based on the number of revolution of the engine and a suction air amount, an air/fuel ratio feedback control means 52 for feedback control of the basic fuel injection amount based on a detection result of the air/fuel ratio sensor, and a transient fuel correction means 53 to correct the basic fuel injection amount. The transient fuel correction means 53 corrects the basic fuel injection amount based on the suction pipe pressure detected by the suction pipe pressure detection means 9 and the air/fuel ratio detected by the air/fuel ratio sensor 25 when the operating condition detection means 51 discriminates the transient state.
      COPYRIGHT: (C)2008,JPO&INPIT
    • 要解决的问题:基于吸入管的压力和空气/燃料比来校正在过渡期间喷射的燃料量并且精确地控制用于发动机的燃料控制装置中的空燃比。 解决方案:燃料控制装置包括:操作状态检测装置51,用于检测车辆的运行状况以判别过渡状态;吸入管压力检测装置9,用于检测发动机的吸入管的压力; ,安装在排气管中的空气/燃料比传感器或O 2传感器25,基本燃料计算装置50,用于基于发动机的转数和吸力计算基本燃料喷射量 空气量,用于基于空燃比传感器的检测结果反馈控制基本燃料喷射量的空气/燃料比反馈控制装置52以及用于校正基本燃料喷射量的瞬时燃料校正装置53。 瞬时燃料校正装置53基于由吸入管压力检测装置9检测到的吸入管压力和由空气/燃料比传感器25检测到的空气/燃料比来校正基本燃料喷射量,当操作条件检测装置51识别 过渡状态。 版权所有(C)2008,JPO&INPIT
    • 38. 发明专利
    • Method of early warming up catalyst during engine starting, and fuel control device provided with the method
    • 在发动机起动期间早期加热催化剂的方法以及用该方法提供的燃料控制装置
    • JP2008138522A
    • 2008-06-19
    • JP2006322749
    • 2006-11-30
    • Hitachi Ltd株式会社日立製作所
    • ASANO SEIJIOBA HISAHIROOSATO MASASUKETAKADA KENJINAGASE MITSURUSEKINE HIROSHI
    • F02D41/06F01N3/20F02D43/00F02D45/00F02P5/15
    • F02D41/0255F02D2200/0802Y02T10/26
    • PROBLEM TO BE SOLVED: To provide a method of early warming up a catalyst comprising determing fuel properties from the amount of correction to ignition timing in order to suppress rotational variations during idling, correcting the amount of fuel based on the result of the determination, and controlling ignition timing and an air-fuel ratio so as not to cause overloading to an ISC air amount during starting, torque-down, and a step in torque level. SOLUTION: Ignition retard based control is performed until kindling is formed at a heat spot of a catalyst immediately after starting, and lean air-fuel ratio based control is performed led from ignition retard based control at the time it is determined that the kindling has been developed at the heat spot of the catalyst. Also, during transition from the ignition retard based control to the lean air-fuel ratio based control, transitional control is performed to trace an equal ISC air amount line so as not to cause torque variations. COPYRIGHT: (C)2008,JPO&INPIT
    • 要解决的问题:为了提供一种早期预热催化剂的方法,其包括将燃料性质从对点火正时的校正量确定,以便抑制怠速期间的旋转变化,基于所述燃料的结果来校正燃料量 确定和控制点火正时和空燃比,以便在启动,扭矩下降和转矩水平阶段不会导致ISC空气量过载。 解决方案:执行基于点火延迟的控制,直到在启动后立即在催化剂的热点处形成点火,并且基于从基于点火延迟的控制执行基于稀燃空燃比的控制,在确定 在催化剂的热点处开发了点火。 此外,在从基于点火延迟的控制到基于稀空燃比的控制的转变期间,执行过渡控制以追踪相等的ISC空气量线,以便不引起扭矩变化。 版权所有(C)2008,JPO&INPIT
    • 39. 发明专利
    • Alternator control diagnosing device
    • 交流电机控制诊断装置
    • JP2009183064A
    • 2009-08-13
    • JP2008019738
    • 2008-01-30
    • Hitachi Ltd株式会社日立製作所
    • MISHIRO KEIICHINISHIDA SHIGERUTAKADA KENJI
    • H02J7/14H02P9/14H02P9/30
    • PROBLEM TO BE SOLVED: To provide an alternator control diagnosing device which reliably and promptly detects deterioration/failure of an alternator and its control system, even when controlling the generation of the alternator so as to enhance exhaust emission performance, startability and fuel economy or the like. SOLUTION: After the power generating voltage of the alternator 20 starts to change, the alternator control diagnosing device detects the difference between the respective values of intake air amount showing an engine load and battery voltage and the respective values before the change of the power generating voltage. When the difference does not exceed the determining value determined respectively according to the change amount of the power generating voltage, within a prescribed period after the power generating voltage starts to change, the alternator control diagnosing device determines a failure of the alternator and its control system. COPYRIGHT: (C)2009,JPO&INPIT
    • 要解决的问题:即使在控制交流发电机的产生,提高废气排放性能,起动性和燃料的情况下,也能够提供可靠且及时地检测交流发电机及其控制系统的劣化/故障的交流发电机控制诊断装置 经济等。 解决方案:在交流发电机20的发电电压开始变化之后,交流发电机控制诊断装置检测显示发动机负荷和电池电压的进气量的各个值与变更前的各个值之间的差 发电电压。 当差异不超过根据发电电压的变化量分别确定的确定值时,在发电电压开始变化之后的规定时间内,交流发电机控制诊断装置判定交流发电机及其控制系统的故障 。 版权所有(C)2009,JPO&INPIT
    • 40. 发明专利
    • Engine cylinder identification device
    • 发动机缸体识别装置
    • JP2009085080A
    • 2009-04-23
    • JP2007255251
    • 2007-09-28
    • Hitachi Ltd株式会社日立製作所
    • NAGASE MITSURUOSATO MASASUKEKOMORIDA HIRONARITAKADA KENJIMISHIRO KEIICHINISHIDA SHIGERUTAKAMURA HIROYUKI
    • F02D45/00
    • PROBLEM TO BE SOLVED: To provide an engine cylinder identification device capable of identifying each cylinder, even if the signal obtained from one sensor is abnormal, only with the signals from the remaining normal sensors.
      SOLUTION: The outer circumference of a crank signal plate has an equally spaced section on which a number of parts to be detected, including teeth and projections, are arranged over a predetermined angular range and at least two types of unequally spaced sections each covering a wider angular range than the equally spaced section, a number of parts to be detected, including teeth and projections, are disposed on the outer circumference of a cam signal plate, the cam signal plate is divided into as many areas as the number of cylinders, each of the areas is further divided into at least three regions α, β, γ, a part to be detected is disposed at a predetermined angular position in each of the regions α, β, γ, and the parts to be detected, disposed in the regions α, β, are set such that the combination of items of binarized bit information generated by the two parts to be detected varies with every cylinder.
      COPYRIGHT: (C)2009,JPO&INPIT
    • 要解决的问题:即使从一个传感器获得的信号异常,仅提供来自其余正常传感器的信号,能够提供能够识别每个气缸的发动机气缸识别装置。 解决方案:曲柄信号板的外圆周具有等间隔的部分,待检测的多个零件(包括齿和突起)布置在预定的角度范围上,并且至少两种类型的不相等的部分 覆盖比等间隔部分更宽的角度范围,在凸轮信号板的外圆周上设置有若干待检测部件(包括齿和突起),凸轮信号板被划分为多个区域 气缸,每个区域进一步被划分为至少三个区域α,β,γ,待检测的部分设置在区域α,β,γ和要检测的各个区域中的预定角度位置处, 设置在区域α,β中,使得由两个待检测部分生成的二值化位信息的项目的组合随着每个气缸而变化。 版权所有(C)2009,JPO&INPIT