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    • 3. 发明专利
    • Variable valve gear control device
    • 可变阀门齿轮控制装置
    • JP2009024542A
    • 2009-02-05
    • JP2007186826
    • 2007-07-18
    • Toyota Motor Corpトヨタ自動車株式会社
    • TOMIMATSU AKIRAKOGA NOBUHIKO
    • F02D13/02F01L1/34F01L13/00
    • F01L13/00F01L1/34F01L1/344
    • PROBLEM TO BE SOLVED: To quickly converge actual valve opening characteristics to target valve opening characteristic even at low temperature in relation to a variable valve gear control device. SOLUTION: Oil pressure for a hydraulic actuator of a variable valve gear is controlled in accordance with a duty value of a control signal for a hydraulic control valve. When predetermined inching control execution conditions are established, inching control in which the duty value is varied in a pulsed manner between a retention duty value, which retains an operation of the hydraulic actuator, and a forced drive duty value, which forcibly drives the hydraulic actuator, is exercised instead of duty value feedback control in which the duty value is calculated in accordance with the deviation between an actual valve opening characteristic and a target valve opening characteristic. If oil temperature is lower than a predetermined temperature, inching control is exercised to ensure that the first pulse width generated after the start of inching control is wider than normal pulse width. COPYRIGHT: (C)2009,JPO&INPIT
    • 要解决的问题:即使在相对于可变阀齿轮控制装置的低温下,也能将实际的阀开启特性快速地收敛到目标阀开启特性。 解决方案:可变阀齿轮的液压执行机构的油压根据液压控制阀的控制信号的占空比值进行控制。 当确定了预定的微动控制执行条件时,其中占空比值以脉冲的方式在保持液压致动器的操作的保持占空比值和强制驱动占空比值之间变化的微动控制,强制驱动液压致动器 ,而不是根据实际阀打开特性和目标阀打开特性之间的偏差来计算占空值的占空比值反馈控制。 如果油温低于预定温度,则进行微动控制,以确保在开始微动控制之后产生的第一脉冲宽度比正常脉冲宽度宽。 版权所有(C)2009,JPO&INPIT
    • 4. 发明专利
    • Plug gap detecting device and internal combustion engine control device having the same
    • 具有差动检测装置和内燃机发动机控制装置
    • JP2008286168A
    • 2008-11-27
    • JP2007134212
    • 2007-05-21
    • Toyota Motor Corpトヨタ自動車株式会社
    • TOMIMATSU AKIRA
    • F02P13/00F02B31/00F02P17/12
    • Y02T10/146
    • PROBLEM TO BE SOLVED: To provide a plug gap detecting device for detecting the plug gap of an ignition plug left mounted on an engine body. SOLUTION: The ignition plug 6 has a center electrode 66 and a ground electrode 67. It discharges electricity between the electrodes with high voltage applied therebetween. The plug gap detecting device comprises a voltage applying means 70 for applying voltage lower than the high voltage between the center electrode and the ground electrode, a current detecting means 71 for detecting an ion current flowing between the electrodes with the voltage applied by the voltage applying means, and a gap estimating means for estimating a plug gap in accordance with the ion current detected by the current detecting means. COPYRIGHT: (C)2009,JPO&INPIT
    • 要解决的问题:提供一种用于检测安装在发动机主体上的火花塞的插头间隙的插头间隙检测装置。

      解决方案:火花塞6具有中心电极66和接地电极67.它们之间以高电压在电极之间放电。 插头间隙检测装置包括用于在中心电极和接地电极之间施加低于高电压的电压的电压施加装置70,用于检测在电压施加的电压之间流过电极的离子电流的电流检测装置71 以及用于根据由电流检测装置检测到的离子电流来估计插头间隙的间隙估计装置。 版权所有(C)2009,JPO&INPIT

    • 5. 发明专利
    • Catalyst exhaust odor suppressing device
    • 催化剂除臭气味抑制装置
    • JP2007146805A
    • 2007-06-14
    • JP2005345336
    • 2005-11-30
    • Toyota Motor Corpトヨタ自動車株式会社
    • NOJIMA YASUSHIHOSHI KOICHIYAGIHASHI MASAOSAKURAI KENJITOMIMATSU AKIRA
    • F01N3/34F01N3/08F01N3/22F01N3/30
    • Y02T10/6295
    • PROBLEM TO BE SOLVED: To appropriately suppress an exhaust odor of exhaust gas exhausted from an internal combustion engine by a catalyst exhaust odor suppressing device.
      SOLUTION: This catalyst exhaust odor suppressing device is provided for an exhaust pipe exhausting exhaust gas from the internal combustion engine and having a catalyst for purifying the exhaust gas in the middle. The catalyst exhaust odor suppressing device has an atmosphere open valve arranged in the downstream side of the catalyst in the exhaust pipe and capable of communicating an inner space of the exhaust pipe with the atmosphere, and a control means for selectively opening the atmosphere open valve such that the atmosphere is introduced from the downstream side to inside of the catalyst via the atmosphere open valve and the exhaust pipe.
      COPYRIGHT: (C)2007,JPO&INPIT
    • 解决的问题:适当地抑制由催化剂排气臭味抑制装置排出的内燃机废气的排气气味。 解决方案:该催化剂排气抑制装置设置用于从内燃机排出废气的排气管,并具有用于净化中部废气的催化剂。 催化剂排气臭味抑制装置具有布置在排气管中的催化剂的下游侧并能够将排气管的内部空间与大气连通的大气开放阀,以及用于选择性地打开大气开放阀的控制装置, 气氛经由大气开放阀和排气管从催化剂的下游侧引入内部。 版权所有(C)2007,JPO&INPIT
    • 6. 发明专利
    • Engine system
    • 发动机系统
    • JP2013217270A
    • 2013-10-24
    • JP2012088226
    • 2012-04-09
    • Toyota Motor Corpトヨタ自動車株式会社
    • HOSHI KOICHISHINODA SACHIHISASUGIMOTO KAZUHIROTOMIMATSU AKIRA
    • F02D13/02F02B29/08F02D41/12
    • Y02T10/146Y02T10/18
    • PROBLEM TO BE SOLVED: To provide an engine system that properly controls a temperature of a catalyst by controlling a torque level difference.SOLUTION: An engine system includes: an engine where two exhaust valves are provided for one cylinder; a variable valve mechanism switched to a first state in which only one of the two exhaust valves id driven or a second state in which both of the two exhaust valves are driven; a catalyst disposed on an exhaust path connected to the engine; and a controller that brings the variable valve mechanism before performing fuel cut into the first state when the fuel cut is requested to cut fuel supply to the engine while the engine rotation speed is a predetermined rotation speed or more and the temperature of the catalyst is a predetermined temperature or more.
    • 要解决的问题:提供通过控制转矩水平差来适当地控制催化剂的温度的发动机系统。解决方案:发动机系统包括:一个发动机,其中两个排气阀设置用于一个气缸; 可变阀机构切换到仅驱动两个排气阀id中的一个被驱动的第一状态或两个排气门都被驱动的第二状态; 设置在与发动机连接的排气路径上的催化剂; 以及控制器,当在发动机转速为预定旋转速度或更大时,要求燃料切断被要求切断燃料供给时,将进行燃料切断的可变气门机构引导到可变气门机构,并且催化剂的温度为 预定温度以上。
    • 7. 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
    • JP2011058436A
    • 2011-03-24
    • JP2009209609
    • 2009-09-10
    • Toyota Motor Corpトヨタ自動車株式会社
    • SUZUKI JUNICHIYOSHIOKA MAMORUTOMIMATSU AKIRA
    • F02D41/06F02D13/02
    • Y02T10/18
    • PROBLEM TO BE SOLVED: To provide a fuel injection control device for an internal combustion engine that can reduce an exhaust amount of hydrocarbon (HC).
      SOLUTION: The fuel injection control device is applied to an internal combustion engine 1 including a variable valve operating mechanism 6 that can change valve operating characteristics including a phase angle and a lift amount of an intake valve 5. The device includes a valve operating characteristic determining means for determining whether the valve operating characteristics of the intake valve 5 are set in a range α where a flow velocity of intake air flowing into a cylinder exceeds a predetermined threshold when the intake valve 5 is opened. The device further includes a fuel injection timing controlling means for retarding timing of starting fuel injection later than timing of opening the intake valve 5 according to a setting of the valve operating characteristics when the valve operating characteristics are determined to be set within the range α.
      COPYRIGHT: (C)2011,JPO&INPIT
    • 解决的问题:提供一种能够减少碳氢化合物(HC)的排出量的内燃机的燃料喷射控制装置。 解决方案:燃料喷射控制装置被应用于包括可变阀操作机构6的内燃机1,该可变气门操作机构6可以改变包括进气门5的相位角和提升量的阀操作特性。该装置包括阀 操作特性确定装置,用于确定进气门5的气门操作特性是否设定在进气缸内的进气的流速超过进气门5打开时的预定阈值的范围α内。 该装置还包括一个燃料喷射正时控制装置,当阀操作特性被确定为设定在α范围内时,根据气门操作特性的设定,延迟比打开进气门5的时间更晚的启动燃料喷射的定时。 版权所有(C)2011,JPO&INPIT
    • 8. 发明专利
    • Control device for internal combustion engine
    • 内燃机控制装置
    • JP2009121263A
    • 2009-06-04
    • JP2007294134
    • 2007-11-13
    • Toyota Motor Corpトヨタ自動車株式会社
    • TOMIMATSU AKIRA
    • F02D13/02
    • Y02T10/121Y02T10/18
    • PROBLEM TO BE SOLVED: To stably feed intake negative pressure adequate for a brake device while favorably keeping an operating condition of an internal combustion engine. SOLUTION: This internal combustion engine 1 is provided with an intake pressure sensor 26 detecting the intake negative pressure P, and VVTs 40, 42 setting valve timing variably. In an ECU 50, a brake request negative pressure P0, which is the minimum negative pressure value necessary for the brake device 44 to exert its function adequately, is stored in advance. The ECU 50 executes blow back amount reducing control when the internal combustion engine 10 is in a decelerating condition, and the intake negative pressure P is insufficient in comparison with the brake request negative pressure P0. In this blow back amount reducing control, a minus overlap interval α of each of valves 36, 38 is shortened by at least one of the VVTs 40, 42. This can reduce the amount of blow back of exhaust gas blown back to an air inlet system, and raise the intake negative pressure by the amount. COPYRIGHT: (C)2009,JPO&INPIT
    • 要解决的问题:为了稳定地供给适于制动装置的进气负压,同时有利地保持内燃机的运转状态。 解决方案:该内燃机1设有检测进气负压P和VVT 40,42的进气压力传感器26,可变地设定气门正时。 在ECU50中,预先存储作为制动装置44充分发挥其功能所需的最小负压值的制动请求负压P0。 当内燃机10处于减速状态时,ECU50执行回吹量减少控制,并且与制动请求负压P0相比,进气负压P不足。 在这种吹回量减少控制中,阀36,38中的每一个的负重叠间隔α被VVT40,42中的至少一个缩短。这可以减少被吹回到空气入口的废气的吹回量 系统,并将摄入负压提高量。 版权所有(C)2009,JPO&INPIT
    • 9. 发明专利
    • Control device of internal combustion engine
    • 内燃机控制装置
    • JP2008240642A
    • 2008-10-09
    • JP2007082714
    • 2007-03-27
    • Toyota Motor Corpトヨタ自動車株式会社
    • TOMIMATSU AKIRAKOGA NOBUHIKO
    • F02D41/12F02D45/00
    • PROBLEM TO BE SOLVED: To provide a control device of an internal combustion engine capable of restraining the occurrence of smoking in a spark plug by performing a fuel cut.
      SOLUTION: An ECU 80 prohibits the fuel cut when determining that a combustion state in a front cycle is not excellent. The ECU 80 also permits the fuel cut and permits an ignition cut regardless of whether the combustion state is excellent or not when determining that a fuel sticking quantity of an intake port 22 is less than a predetermined determining sticking quantity. Since its quantity is a small quantity even if fuel sticking to an intake passage flows in a cylinder when performing the fuel cut, the smoking is not caused in the spark plug 66 by the fuel flowed in the cylinder even if the ignition cut is performed. Fuel consumption as the internal combustion engine 10 is reduced by performing the fuel cut, and electric power consumption by the spark plug 66 is restrained by performing the ignition cut.
      COPYRIGHT: (C)2009,JPO&INPIT
    • 要解决的问题:提供一种能够通过执行燃料切断来限制火花塞中的吸烟发生的内燃机的控制装置。 解决方案:当确定前循环中的燃烧状态不是很好时,ECU 80禁止燃料切断。 当确定进气口22的燃料粘附量小于预定的确定粘附量时,ECU 80还允许燃料切断并允许点火切断,而不管燃烧状态是否优异。 即使在进行燃料切断时,在进气通道中流入燃料的燃料量少的量也是少量的,所以即使进行了点火切断,也不会由于燃料流入气缸而引起火花塞66的吸烟。 通过进行燃料切断来减少内燃机10的燃料消耗,通过进行点火切断来抑制火花塞66的电力消耗。 版权所有(C)2009,JPO&INPIT
    • 10. 发明专利
    • Failure diagnostic system of combustion improving means
    • 燃烧故障诊断系统改进手段
    • JP2008069675A
    • 2008-03-27
    • JP2006247423
    • 2006-09-13
    • Toyota Motor Corpトヨタ自動車株式会社
    • HOSHI KOICHISUDA SHOGOTOMIMATSU AKIRAKOGA NOBUHIKOKATO YUICHI
    • F02D45/00F02B31/00F02P5/15
    • G01M15/05F02D41/221F02D2041/0015F02D2200/1012Y02T10/40
    • PROBLEM TO BE SOLVED: To provide a failure diagnostic system of a combustion improving means capable of inexpensively detecting failure of the combustion improving means with high detectablity with every corresponding cylinder. SOLUTION: An ECU 1A diagnoses failure of an air current control valve 58 arranged in an intake port 52a communicating with a combustion chamber 57 of an internal combustion engine 50 for improving a combustion state, and has a failure determining means determining the failure of the air current control valve 58 with every corresponding cylinder, based on average crank angle acceleration with every cylinder of the internal combustion engine 50 and an operation state of the air current control valve 58. Actually, the failure determining means determines that there is abnormality in the air current control valve 58 corresponding to the cylinder of detecting the average crank angle acceleration existing on the deceleration side, when the average crank angle acceleration exists on the deceleration side when the air current control valve 58 is operated and the average crank angle acceleration does not exist on the deceleration side when the air current control valve 58 is not operated. COPYRIGHT: (C)2008,JPO&INPIT
    • 要解决的问题:提供一种燃烧改进装置的故障诊断系统,其能够以每个对应的气缸以高可检测性廉价地检测燃烧改善装置的故障。 解决方案:ECU 1A诊断布置在与用于改善燃烧状态的内燃机50的燃烧室57连通的进气口52a中的气流控制阀58的故障,并且具有确定故障的故障确定装置 基于与内燃机50的每个气缸的平均曲柄角加速度和气流控制阀58的运转状态相对应的气流控制阀58,实际上,故障判定单元判定为异常 在与检测到减速侧存在的平均曲柄角加速度的气缸对应的气流控制阀58中,当气动控制阀58动作时,在减速侧存在平均曲柄角加速度,平均曲柄角加速度 当气流控制阀58未被操作时,在减速侧不存在。 版权所有(C)2008,JPO&INPIT