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    • 11. 发明专利
    • Variable valve timing device
    • 可变阀门定时装置
    • JP2007262950A
    • 2007-10-11
    • JP2006087576
    • 2006-03-28
    • Denso CorpToyota Motor Corpトヨタ自動車株式会社株式会社デンソー
    • INOUE YASUMICHIMASHIKI ZENICHIROTAKAGI NOBORUURUSHIBATA HARUYUKI
    • F02D13/02F01L1/34
    • F01L1/352F01L1/024F01L2001/0537F01L2800/01F01L2800/03F01L2820/032F01L2820/041F01L2820/042
    • PROBLEM TO BE SOLVED: To provide a variable valve timing device capable of reducing electric power consumption by valve timing control when stopping an engine. SOLUTION: A convergence determination of intake valve phase control is performed by a comparison between a phase deviation ¾ΔIV(θ)¾ and a convergence determining value θj of an intake valve to a target phase (S140). In convergence (when determining as YES of S140), a determination is made that an intake valve phase reaches the target phase, and since a phase variation in a required camshaft is set to zero, an actuator operation quantity is also set to zero (S160). Thus, when stopping the engine when the target phase is a fixed value, after convergence of the intake valve phase control, operation of an actuator is stopped. When further stopping the engine, the convergence determining value is set by switching when stopping the engine and when operating the engine so that the convergence determination of the intake valve phase control becomes gentler than when operating the engine (S120 and S130). COPYRIGHT: (C)2008,JPO&INPIT
    • 要解决的问题:提供一种可变气门正时装置,其能够在停止发动机时通过气门正时控制来降低电力消耗。 解决方案:通过相位偏差¾ΔIV(θ)¾与进气门到目标相位的会聚判定值θj(S140)之间的比较来进行进气门相位控制的收敛判定。 收敛时(当S140为“是”时),判断为进气门相达到目标相位,并且由于所需凸轮轴的相位变化为零,所以致动器运转量也为零(S160 )。 因此,当目标相位为固定值时停止发动机时,在进气门相位控制收敛后,停止执行器的动作。 当进一步停止发动机时,通过在停止发动机时和在操作发动机时切换来设定收敛确定值,使得进气门相位控制的收敛确定比操作发动机时变得更温和(S120和S130)。 版权所有(C)2008,JPO&INPIT
    • 14. 发明专利
    • Fuel injection control device for internal combustion engine
    • 用于内燃机的燃油喷射控制装置
    • JP2010025083A
    • 2010-02-04
    • JP2008191073
    • 2008-07-24
    • Toyota Motor Corpトヨタ自動車株式会社
    • SEO HIROMITSUTAKAGI NOBORUMINO KAZUHIROINOUE TAKEHIROMIYAZAKI TAKASHI
    • F02D41/04F02D13/02F02D43/00F02D45/00
    • F02D13/0261Y02T10/18
    • PROBLEM TO BE SOLVED: To provide a fuel injection control device for an internal combustion engine capable of surely compensating for the reduced amount of fuel fed into a combustion chamber by more accurately executing increase-correction of the fuel injection quantity. SOLUTION: An electronic control device sets fuel injection quantity according to an operation state of the engine, opens a fuel injection valve disposed in an intake port, and injects fuel of the fuel injection quantity and supplies the same to an inside of the combustion chamber. The electronic control device executes increase-correction of the fuel injection quantity based on a period (overlap period TOL) during which a floating period T2 during which fuel injected from the fuel injection valve floats in the intake port and a reverse flow period T1 during which burned gas in the combustion chamber reversely flows to the intake port, accompanying open of an intake valve, overlap. COPYRIGHT: (C)2010,JPO&INPIT
    • 解决的问题:提供一种内燃机的燃料喷射控制装置,其能够通过更准确地执行燃料喷射量的增加校正来可靠地补偿进入燃烧室的燃料量的减少。 解决方案:电子控制装置根据发动机的运行状态设定燃料喷射量,打开配置在进气口中的燃料喷射阀,喷射燃料喷射量的燃料,并将其供给到 燃烧室。 电子控制装置基于从燃料喷射阀喷射的燃料在进气口中漂浮的浮动期间T2和反向流动期间T1的周期(重叠期间TOL),执行燃料喷射量的增加修正,在此期间, 燃烧室中的燃烧气体反向流入进气口,伴随着进气门的打开,重叠。 版权所有(C)2010,JPO&INPIT
    • 15. 发明专利
    • Control device of internal combustion engine
    • 内燃机控制装置
    • JP2009174328A
    • 2009-08-06
    • JP2008010859
    • 2008-01-21
    • Toyota Motor Corpトヨタ自動車株式会社
    • SOEJIMA SHINICHIKAWAI KEISUKETAKAGI NOBORUSEO HIROMITSUKATO NAOTOMIZUTANI TAKAMITSU
    • F02P5/15F02D45/00
    • Y02T10/46
    • PROBLEM TO BE SOLVED: To allow output torque of an internal combustion engine to follow requested torque by controlling an ignition timing corresponding to actual suction air amount, and to surely operate at a reference ignition timing at least in normal operation.
      SOLUTION: A target opening is calculated by inputting a target KL into an air inverse model M1
      -1 found from target torque (requested torque) to control throttle corresponding to the target opening. Besides, a throttle opening is input in an air model M1 to find an estimation KL to calculate the torque that is realized with the estimation KL as estimation torque. An ignition timing correction amount for realizing the target torque with the estimation KL is calculated based on a ratio (torque efficiency) of the estimation torque to the target torque. Moreover, the throttle opening and an air flow meter output value are input into an air model M2 to find an actual KL, and to calculate a reference ignition timing based on the actual KL. The target ignition timing is set based on the ignition timing correction amount and the reference ignition timing.
      COPYRIGHT: (C)2009,JPO&INPIT
    • 要解决的问题:为了允许内燃机的输出扭矩通过控制与实际吸入空气量相对应的点火正时来跟随所要求的扭矩,并且至少在正常操作中可靠地在基准点火正时操作。

      解决方案:通过将目标KL输入到从目标转矩(所需转矩)找到的对应于目标开度的控制油门的空气逆模型M1 -1 中来计算目标开度。 此外,在空气模型M1中输入节气门开度以找到估计KL,以计算用估计KL实现的作为估计转矩的转矩。 基于估计转矩与目标转矩的比率(转矩效率),计算用于通过估计KL实现目标转矩的点火正时校正量。 此外,节气门开度和空气流量计输出值被输入到空气模型M2中以找到实际的KL,并且基于实际的KL来计算参考点火正时。 基于点火正时校正量和基准点火正时设定目标点火正时。 版权所有(C)2009,JPO&INPIT

    • 16. 发明专利
    • Variable valve timing system
    • 可变阀门时序系统
    • JP2008069719A
    • 2008-03-27
    • JP2006249653
    • 2006-09-14
    • Denso CorpToyota Motor Corpトヨタ自動車株式会社株式会社デンソー
    • MASHIKI ZENICHIROINOUE YASUMICHIHATTORI MASATAKATAKAGI NOBORUURUSHIBATA HARUYUKIINOUE MASAOMITAKEMURA YUICHITANAKA TOSHIKAZU
    • F02D13/02F01L1/34
    • F01L1/352F01L1/022F01L1/026F01L2001/0537F01L2800/00F01L2820/032F01L2820/041F01L2820/042F02D13/0238Y02T10/18
    • PROBLEM TO BE SOLVED: To provide a variable valve timing system using an electric motor as an actuator, capable of appropriately detecting the overheated state of the electric motor and a drive unit so as to protect the system and improve the controlling performance. SOLUTION: An actuator operation quantity setting portion 6000 generates a rotational speed command value Nmref for the electric motor 2060 so that the phase of an intake valve is changed to match a target phase. An electric-motor EDU 4100 controls electric power PWm supplied to the electric motor so that the electric motor 2060 operates in accordance with the rotational speed command value Nmref. An overheat judgment portion 6200 judges whether it is necessary to restrict heat generation or not based on comparison between information showing the electric power PWm supplied to the motor and a criterion of judgment DTYj. A command value restricting portion 6300 restricts the rotational speed command value Nmref fed to the electric-motor EDU 4100 within a predetermined range when it is judged that the restriction of heat generation is required. A judgment criterion setting portion 6100 sets the judgment criterion DTYj to be variable according to the rotational speed of the electric motor 2060. COPYRIGHT: (C)2008,JPO&INPIT
    • 要解决的问题:提供一种使用电动机作为致动器的可变气门正时系统,能够适当地检测电动机的过热状态和驱动单元,以保护系统并提高控制性能。 解决方案:致动器操作量设定部分6000产生用于电动机2060的转速指令值Nmref,使得进气门的相位变化以匹配目标相位。 电动机EDU 4100控制提供给电动机的电力PWm,使得电动机2060根据转速指令值Nmref进行动作。 过热判断部6200根据供给电动机的电力PWm的信息与判定标准DTYj的比较,判断是否需要限制发热。 当判断需要限制发热时,指令值限制部分6300将提供给电动机EDU 4100的转速指令值Nmref限制在预定范围内。 判断基准设定部6100根据电动机2060的转速将判定基准DTYj设定为可变的。(C)2008,JPO&INPIT
    • 18. 发明专利
    • Variable valve timing device
    • 可变阀门定时装置
    • JP2007154715A
    • 2007-06-21
    • JP2005349129
    • 2005-12-02
    • Denso CorpNippon Soken IncToyota Motor Corpトヨタ自動車株式会社株式会社デンソー株式会社日本自動車部品総合研究所
    • INOUE YASUMICHIMASHIKI ZENICHIROTAKAGI NOBORUMORIYA YOSHITOURUSHIBATA HARUYUKITAKENAKA AKIHIKOISOBE EIJIINOHARA TAKAYUKI
    • F01L1/34
    • F01L1/34F01L1/352F01L1/356
    • PROBLEM TO BE SOLVED: To change valve open/close timing in a wide range and maintain the valve open/close timing at timing as controlled. SOLUTION: Relative rotation speed of an output shaft of an electric motor and a sprocket is reduced at reducing ratio R(1) and phase of the intake valve is change when phase of the intake valve is in a first region between the most retarded angle and CA(1) in a variable valve timing device. Relative rotation speed of the output shaft of the electric motor and the sprocket is reduced at reducing ratio R(2) (R(1)>R(2)) and phase of the intake valve is changed when phase of the intake valve is in a second region between CA(2) (CA(2) is in advanced angle side than CA(1)) and the most advanced angle. Phase of the intake valve is changed in same direction in both of the first region between the most retarded angle and CA(1) and the second region between CA(2) and the most advanced angle as far as relative rotation directions of the output shaft of the electric motor and the sprocket is same. COPYRIGHT: (C)2007,JPO&INPIT
    • 要解决的问题:在较宽的范围内改变阀门开/关定时,并在受控的定时维持阀门的开/关定时。

      解决方案:电动机和链轮的输出轴的相对转速在减速比R(1)下减小,进气门的相位在进气门的相位处于最大值 延迟角度和CA(1)在可变气门正时装置中。 电动机和链轮的输出轴的相对转速在减速比R(2)(R(1)> R(2))下减小,进气门的相位在进气门相位为 CA(2)(CA(2)之间的第二区域处于比CA(1)的提前角)和最前进的角度。 进气阀的相位在最大延迟角和CA(1)之间的第一区域和CA(2)和最高提前角度之间的第二区域中的相同方向上变化,只要输出轴的相对旋转方向 的电机和链轮是一样的。 版权所有(C)2007,JPO&INPIT

    • 19. 发明专利
    • Start controller for internal combustion engine
    • 内燃机起动控制器
    • JP2007056787A
    • 2007-03-08
    • JP2005243696
    • 2005-08-25
    • Toyota Motor Corpトヨタ自動車株式会社
    • TAKAGI NOBORU
    • F02D13/02F02D17/04F02D41/06F02D45/00
    • Y02T10/142Y02T10/18
    • PROBLEM TO BE SOLVED: To provide a start controller for an internal combustion engine capable of completing scavenging operation in a short time and achieving high efficiency of scavenging operation. SOLUTION: When scavenging operation is performed after start fail occurs, valve timing of an intake valve 2A is shifted to a retard angle side by an electric VVT to set closing timing of the intake valve 2A to be late. Consequently, when scavenging cranking operation is performed, large air stream advancing toward an intake passage 2 from the inside of a cylinder accompanying with contraction of volume in the cylinder due to rise of a piston is generated to eliminate a wet state of an ignition plug 30 quickly. COPYRIGHT: (C)2007,JPO&INPIT
    • 要解决的问题:提供能够在短时间内完成清扫操作的内燃机的启动控制器,并且实现高效率的清除操作。 解决方案:当启动失败后进行清扫操作时,进气门2A的气门正时通过电气VVT移动到延迟角侧,以使进气门2A的关闭正时延迟。 因此,当进行清扫起动操作时,产生由于活塞的上升而从气缸内部朝向气缸内部朝向进气通道2行进的大气流,以消除火花塞30的潮湿状态 很快。 版权所有(C)2007,JPO&INPIT
    • 20. 发明专利
    • Controller for internal combustion engine
    • 内燃机控制器
    • JP2006144751A
    • 2006-06-08
    • JP2004339360
    • 2004-11-24
    • Toyota Motor Corpトヨタ自動車株式会社
    • TAKAGI NOBORU
    • F02D41/04F02D11/10F02D13/02F02D43/00F02D45/00F02P5/15
    • PROBLEM TO BE SOLVED: To provide a controller for an internal combustion engine capable of accurately learning both a deposit correction amount of a throttle opening and a deposit correction amount of a maximum lift amount of an intake valve.
      SOLUTION: This device is equipped with a lift changing mechanism for changing the maximum lift amount of the intake valve, and controls the amount of intake air through change in the throttle opening and change in the maximum lift amount. When the throttle opening is a predetermined opening or less, the device estimates the amount of intake air based on the throttle opening, and learns the deposit correction amount of the throttle opening based on the divergence degree between the estimated intake air amount and the actual intake air amount (S102). The device estimates the intake pressure based on: the throttle opening corrected based on the deposit correction amount; the maximum lift amount; and the rotational speed of the engine; and based on the divergence degree between the intake pressure and the actual intake pressure, learns the deposit correction amount of the maximum lift amount (S106). Based on this deposit correction amount, the device drives the lift changing mechanism and controls the maximum lift amount (S110).
      COPYRIGHT: (C)2006,JPO&NCIPI
    • 要解决的问题:提供一种能够精确地学习节气门开度的沉积校正量和进气门的最大提升量的沉积校正量的内燃机的控制器。 解决方案:该装置配备有用于改变进气门的最大提升量的升程改变机构,并且通过节气门开度的改变和最大提升量的变化来控制进气量。 当节气门开度为预定开度或更小时,该装置基于节气门开度估计进气量,并且基于估计进气量和实际摄入量之间的发散度来了解节气门开度的沉积校正量 空气量(S102)。 该装置基于:根据沉积校正量校正的节气门开度估计进气压力; 最大起升量; 和发动机转速; 并且基于进气压力和实际进气压力之间的发散度来了解最大提升量的存款修正量(S106)。 基于该定金量,该装置驱动升降机构并控制最大提升量(S110)。 版权所有(C)2006,JPO&NCIPI