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    • 1. 发明专利
    • Control device of internal combustion engine
    • 内燃机控制装置
    • JP2014101784A
    • 2014-06-05
    • JP2012253372
    • 2012-11-19
    • Toyota Motor Corpトヨタ自動車株式会社
    • MORI JUNICHIWAKAO KAZUHIROTSUKAKOSHI TAKAHIROMATSUDA KAZUHISA
    • F02D41/14F02D45/00F02M63/00
    • F02D41/3094F02D19/084F02D19/088Y02T10/36
    • PROBLEM TO BE SOLVED: To provide a control device of an internal combustion engine capable of properly carrying out various control such as an air/fuel ratio feedback control, even in a concentration transient state, in an FFV dual injection type internal combustion engine.SOLUTION: In a concentration transient period in which alcohol concentration in an injected fuel is different between an in-cylinder injector and a port injector, the alcohol concentration is estimated by processing different from that performed under a normal condition. Concretely, by using an expression regulating a relationship between the alcohol concentration in fuel injected from each injector in cycles before/after change, alcohol concentration estimated from an air/fuel ratio feedback correction amount corresponding to the combustion of the injection fuel of the cycles, and an injection ratio of the fuel in the cycles, the alcohol concentration in the fuel injected from each injector in the cycle after the change is estimated.
    • 要解决的问题:提供一种内燃机的控制装置,能够在FFV双喷射型内燃机中即使在浓度过渡状态下能够适当地执行诸如空燃比反馈控制的各种控制。 :在喷射燃料中的酒精浓度在缸内喷射器和喷射器之间不同的浓缩过渡期间,通过与正常条件下进行的处理不同的处理来估计酒精浓度。 具体地说,通过使用调节从各个喷射器喷射的燃料中的醇浓度与变化前后的循环的关系的表达式,根据与循环的喷射燃料的燃烧相对应的空燃比反馈校正量估计的醇浓度, 和循环中的燃料的喷射比,估计在变化后的循环中从每个喷射器喷射的燃料中的醇浓度。
    • 2. 发明专利
    • Internal combustion engine
    • 内燃机
    • JP2013029026A
    • 2013-02-07
    • JP2011163575
    • 2011-07-26
    • Toyota Motor Corpトヨタ自動車株式会社
    • MORI JUNICHISAKAYANAGI YOSHIHIROKAWASAKI TAKASHI
    • F02D43/00F02D15/04F02P5/15
    • PROBLEM TO BE SOLVED: To provide an internal combustion engine with a variable compression ratio mechanism, which prevents an operation state from becoming unstable when a mechanical compression ratio is changed.SOLUTION: The internal combustion engine includes the variable compression ratio mechanism that changes the mechanical compression ratio by change of the volume of a combustion chamber. An unburnt gas and a burned gas that has already burnt are included in a residual gas remaining in the combustion chamber without being exhausted at a previous combustion cycle rather than this combustion cycle. The internal combustion engine estimates the amount of the unburnt gas in this combustion cycle during the period of a transient operation in which the mechanical compression ratio has been changed, and sets an ignition timing in this combustion cycle based on the amount of the unburnt gas in this combustion cycle.
    • 要解决的问题:提供具有可变压缩比机构的内燃机,其在机械压缩比改变时防止操作状态变得不稳定。 解决方案:内燃机包括通过改变燃烧室的体积来改变机械压缩比的可变压缩比机构。 已经燃烧的未燃烧的气体和已经燃烧的燃烧的气体被包括在残留在燃烧室中的残余气体中,而不是在先前的燃烧循环而不是在该燃烧循环中被排出。 内燃机估计在机械压缩比已经改变的瞬时操作期间该燃烧循环中的未燃烧气体的量,并且基于未燃烧气体的量在该燃烧循环中设定点火正时 这个燃烧循环。 版权所有(C)2013,JPO&INPIT
    • 3. 发明专利
    • Device for control of internal combustion engine
    • 内燃机控制装置
    • JP2010031760A
    • 2010-02-12
    • JP2008195323
    • 2008-07-29
    • Toyota Motor Corpトヨタ自動車株式会社
    • MORI JUNICHI
    • F02D45/00F02D41/14
    • PROBLEM TO BE SOLVED: To provide a control device of an internal combustion engine capable of suppressing deterioration of balance of emission, torque and fuel economy by change in fuel property. SOLUTION: The fuel property I is detected and weighting coefficients w THC , w NOx , w CO , w TQ , w TF appropriate for the current fuel property are selected. An evaluation function f 1 for indicating a state of the internal combustion engine 10 is prepared. The evaluation function f 1 is a function weighed by the weighting coefficients w THC , w NOx , w CO , w TQ , w TF . The weighing coefficients are substituted for the evaluation function f 1 in accordance with fuel property I(k) and control parameters Sat, raf.t, Vtin.t, Vtex. are corrected based on a value of the evaluation function f 1 . COPYRIGHT: (C)2010,JPO&INPIT
    • 解决的问题:提供能够通过燃料性质的变化来抑制排放平衡,转矩和燃料经济性的劣化的内燃机的控制装置。

      解决方案:检测燃料特性I,加权系数w THC ,w SB SB, / SB>,w TF 。 准备用于表示内燃机10的状态的评价功能f 1 。 评价函数f 1 是由加权系数w SB SB,W SB SB,W SB SB, w TQ ,w TF 。 根据燃料特性I(k)和控制参数Sat,raf.t,Vtin.t,Vtex,将称量系数代入评价函数f 1 。 基于评价函数f 1 的值进行校正。 版权所有(C)2010,JPO&INPIT

    • 4. 发明专利
    • Cylinder pressure estimation method and cylinder pressure estimation device for internal combustion engine
    • 用于内燃机的气缸压力估计方法和气缸压力估计装置
    • JP2008255932A
    • 2008-10-23
    • JP2007100590
    • 2007-04-06
    • Toyota Motor Corpトヨタ自動車株式会社
    • MORI JUNICHI
    • F02D45/00
    • F02D35/024F02D35/023
    • PROBLEM TO BE SOLVED: To accurately obtain cylinder pressure estimation values for increments of a minute crank angle, with respect to a cylinder pressure estimation method and a cylinder pressure estimation device for an internal combustion engine.
      SOLUTION: The cylinder pressure estimation method for the internal combustion engine is provided with a cylinder pressure acquisition step 132 acquiring cylinder pressure at a plurality of points between intake valve close timing and exhaust valve open timing of the internal combustion engine, parameter determination steps 134, 136 determining a plurality of unfixed parameters included in a model formula expressing relation between the cylinder pressure and heat release pattern in the cylinder based on the cylinder pressure acquired in the cylinder pressure acquisition step 132, a cylinder pressure estimation step 140 calculating cylinder pressure estimation value at predetermined crank angle base on the model formula in which parameter determined in the parameter determination steps 134, 136 are substituted.
      COPYRIGHT: (C)2009,JPO&INPIT
    • 要解决的问题:相对于气缸压力估计方法和用于内燃机的气缸压力估计装置,精确地获得用于微小曲柄转角增量的气缸压力估计值。 解决方案:用于内燃机的气缸压力估计方法设置有气缸压力获取步骤132,其获取内燃机的进气门关闭正时和排气门打开正时之间的多个点处的气缸压力,参数确定 步骤134,136基于在气缸压力获取步骤132中获取的气缸压力来确定包括在缸中的气缸压力和气缸释放模式之间的关系的模型公式中的多个未固定参数,气缸压力估计步骤140,计算气缸 基于在参数确定步骤134,136中确定的参数的模型公式代替预定曲柄角的压力估计值。 版权所有(C)2009,JPO&INPIT
    • 5. 发明专利
    • Control device for internal combustion engine
    • 内燃机控制装置
    • JP2007016626A
    • 2007-01-25
    • JP2005196331
    • 2005-07-05
    • Toyota Motor Corpトヨタ自動車株式会社
    • MORI JUNICHI
    • F02D43/00F02D13/02F02D41/04
    • PROBLEM TO BE SOLVED: To provide a control device for an internal combustion engine for appropriately operating the internal combustion engine when demand fuel injection quantity is less than the minimum fuel injection quantity permitted for a fuel injection valve for cylinder injection in the internal combustion engine provided with the fuel injection valve for cylinder injection.
      SOLUTION: The control device for an internal combustion engine is provided with the fuel injection valve for cylinder injection, and is characterized by being provided with an operation condition detection means detecting an operation condition, determination means determining fuel injection quantity and ignition timing based on demand load which is a detection result of the operation condition detection means, a fuel quantity correction means correcting and increasing fuel injection quantity to the minimum injection quantity when fuel injection quantity provided by the determination means is less than the minimum injection quantity of the fuel injection valve, and a correction control means performing correction control of an intake air quantity adjusting means to increase intake air quantity with corresponding to increase correction amount of fuel by the fuel quantity correction means and correcting and delaying ignition timing provided by the determination means.
      COPYRIGHT: (C)2007,JPO&INPIT
    • 要解决的问题:为了提供一种用于内燃机的控制装置,用于当需求燃料喷射量小于在内部气缸喷射的燃料喷射阀所允许的最小燃料喷射量时适当地操作内燃机 配备有用于气缸喷射的燃料喷射阀的内燃机。 解决方案:用于内燃机的控制装置设置有用于气缸喷射的燃料喷射阀,其特征在于,设置有检测操作条件的操作条件检测装置,确定燃料喷射量和点火正时的确定装置 基于作为操作条件检测装置的检测结果的需求负荷,当燃料量校正装置在由所述确定装置提供的燃料喷射量小于所述最小喷射量时,将所述燃料喷射量校正和增加到所述最小喷射量 燃料喷射阀,以及校正控制装置,通过对应于由燃料量校正装置增加燃料校正量来对进气量调节装置进行校正控制,以增加进气量,并校正和延迟由确定装置提供的点火正时。 版权所有(C)2007,JPO&INPIT
    • 7. 发明专利
    • Cooling efficiency calculating device of egr cooler and control device of internal combustion engine using the same
    • EGR冷却器的冷却效率计算装置和使用该燃烧器的内燃机的控制装置
    • JP2011111942A
    • 2011-06-09
    • JP2009267592
    • 2009-11-25
    • Toyota Motor Corpトヨタ自動車株式会社
    • MORI JUNICHI
    • F02M25/07
    • Y02T10/121
    • PROBLEM TO BE SOLVED: To provide a cooling efficiency calculating device of an EGR cooler and a control device of an internal combustion engine using the same. SOLUTION: A temperature T ex2 of EGR gas at an outlet of an EGR cooler 32 can be obtained by reducing a decreased temperature amount of the EGR gas decreased by the EGR cooler 32 from a temperature T ex1 of the EGR gas at an inlet of the EGR cooler 32. The decreased temperature amount of the EGR gas can be calculated based on an EGR cooler efficiency η EGR obtained from an actual heat transfer coefficient h EGR of the EGR cooler 32. The actual heat transfer coefficient h EGR is calculated from a moved heat amount Q EGR from the EGR cooler 32 to cooling water. The moved heat amount Q EGR is calculated from a total received heat amount Q W of the cooling water and a received heat amount Q cyl that is a heat amount which the cooling water receives from a cylinder 10. The total received heat amount Q W is obtained from an opening valve rate r of a thermostat 42. The received heat amount Q cyl is obtained from a cylinder internal pressure. COPYRIGHT: (C)2011,JPO&INPIT
    • 要解决的问题:提供一种EGR冷却器的冷却效率计算装置和使用该冷却器的内燃机的控制装置。 解决方案:通过将由EGR冷却器32减少的EGR气体的温度降低从温度T降低可以获得EGR冷却器32的出口处的EGR气体的温度T SB> ex2 在EGR冷却器32的入口处的EGR气体的 ex1 。可以基于从冷却器32获得的EGR冷却器效率η EGR 来计算EGR气体的降低的温度量。 EGR冷却器32的实际传热系数h EGR 。从实际的传热系数h EGR 根据从 EGR冷却器32冷却水。 由冷却水的总接收热量Q W 和接收的热量Q cyl 计算移动热量Q EGR 冷却水从气缸10接收的热量。总接收热量Q W 从恒温器42的开阀率r获得。接收热量Q < / SB>从气缸内压获得。 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
    • JP2011058410A
    • 2011-03-24
    • JP2009208290
    • 2009-09-09
    • Toyota Motor Corpトヨタ自動車株式会社
    • MORI JUNICHI
    • F02D41/34F02D45/00F02M63/00
    • F02D41/3094F02D35/023F02D2200/0402
    • PROBLEM TO BE SOLVED: To certainly inject fuel by an intake port injection valve and a cylinder injection valve even if a fuel injection system is deteriorated. SOLUTION: The internal combustion engine 10 includes the intake port injection valve 30 and cylinder injection valve 32. An ECU 50 calculates cylinder premixture air mass Mg cyl as the total amount of an air-fuel mixture sucked into a cylinder and intake port injection mixture mass M cyl,lim involving only fuel injection by the intake port injection valve 30, based on cylinder inner pressure P cyl (θ) or the like. The actual cylinder injection quantity M d and intake port injection quantity M p are calculated based on these calculated values. Thereby, with respect to the intake port injection valve 30 and cylinder injection valve 32, a difference between the target value of the amount of fuel injected and the actual injection quantity is individually calculated. Accordingly, even if the fuel injection system is deteriorated, the fuel injection by the injection valves 30, 32 is always certainly performed. COPYRIGHT: (C)2011,JPO&INPIT
    • 要解决的问题:即使燃料喷射系统劣化,也可以通过进气口喷射阀和气缸喷射阀来注入燃料。 解决方案:内燃机10包括进气口喷射阀30和气缸喷射阀32. ECU50计算气缸预混气体质量Mg cyl 作为空气 - 燃料混合物的总量 吸入气缸和进气口喷射混合物质量M cyl,lim ,仅基于气缸内压P (θ),仅由进气口喷射阀30进行燃油喷射 或类似物。 基于这些计算值计算实际气缸喷射量M d 和进气口喷射量M p 。 因此,对于进气口喷射阀30和气缸喷射阀32,分别计算喷射的燃料量的目标值与实际喷射量之间的差。 因此,即使燃料喷射系统劣化,始终肯定地执行喷射阀30,32的燃料喷射。 版权所有(C)2011,JPO&INPIT
    • 9. 发明专利
    • Control device for internal combustion engine
    • 内燃机控制装置
    • JP2010101259A
    • 2010-05-06
    • JP2008274082
    • 2008-10-24
    • Toyota Motor Corpトヨタ自動車株式会社
    • MORI JUNICHI
    • F02D41/14F02B31/02F02D41/02F02D41/34F02D43/00F02D45/00F02M61/14
    • F02D41/3094
    • PROBLEM TO BE SOLVED: To provide a control device for an internal combustion engine, sufficiently suppressing generation of deposit on an intake valve or a vicinity of an intake valve of an intake port, by accurately estimating a temperature of the vicinity of the intake valve in the intake port when gas in a cylinder is blown back into the intake port at the initial stage of a compression stroke. SOLUTION: A temperature of the gas in the cylinder blown back into the intake port 4 from the inside of the gas in the cylinder at the initial stage of the compression stroke is estimated as a temperature near the intake valve 7 in the intake port at this time. A minimum limit air-fuel ratio of the gas in the cylinder blown back at the initial stage of the compression stroke is set to be larger, as the estimated temperature is higher. As a fuel injection control, the air-fuel ratio of the gas in the cylinder is used as the desired combustion air-fuel ratio when a desired combustion air-fuel ratio is the minimum limit air-fuel ratio or more, and the air-fuel ratio of the gas in the cylinder is used as a minimum limit air-fuel ratio when the desired combustion air-fuel ratio is less than the minimum limit air-fuel ratio, and the remaining fuel required for implementing the desired combustion air-fuel ratio is injected into the cylinder after closing the intake valve. COPYRIGHT: (C)2010,JPO&INPIT
    • 要解决的问题:为了提供一种用于内燃机的控制装置,通过精确地估计进气口附近的温度,充分地抑制进气门或进气门的进气门附近的沉积物的产生 在压缩冲程的初始阶段,当气缸中的气体被吹回入口时,进气口中的进气阀。 解决方案:在压缩冲程的初始阶段,气缸内的气体内部吹入进气口4的气体的温度被估计为进气门内的进气门7附近的温度 港口在这个时候 随着估计的温度越高,在压缩冲程的初始阶段吹回的气缸中的气体的最小极限空燃比被设定得越大。 作为燃料喷射控制,当期望的燃料空燃比为最小限制空燃比时,将气缸内的气体的空燃比用作所需的燃烧空燃比, 当所需燃烧空燃比小于最小极限空燃比时,将气缸内的气体的燃料比用作最小极限空燃比,以及实施所需燃烧空气燃料所需的剩余燃料 关闭进气阀后,比例注入气缸。 版权所有(C)2010,JPO&INPIT
    • 10. 发明专利
    • Combustion rate progress predicting system of internal combustion engine
    • 内燃机燃烧速度预测系统
    • JP2008121439A
    • 2008-05-29
    • JP2006303146
    • 2006-11-08
    • Toyota Motor Corpトヨタ自動車株式会社
    • MORI JUNICHI
    • F02D45/00G06F17/50
    • PROBLEM TO BE SOLVED: To provide a combustion rate predicting system of an internal combustion engine capable of accurately predicting combustion rate progress, even on and after a time when a flame surface reaches a piston top surface or a bore wall surface.
      SOLUTION: Flame surface reaching timing θw is calculated by using combustion speed progress Sf and s(θ) provided by a unidimensional CFD arithmetic operation, piston speed progress Sp(θ) and the shortest distance progress Lw(θ) (Step 106). Wiebe parameters a, m, θb and θp are calculated by fitting Wiebe functions Xb, and wb(θ) to combustion rate progress Xb and s(θ) of the flame surface reaching timing θw from the ignition timing θi by using a least square method (Step 108). Combustion rate progress Xb and wb(θ) are predicted by substituting these Wiebe parameters a, m, θb and θp in the Wiebe functions Xb and wb(θ) (Step 110).
      COPYRIGHT: (C)2008,JPO&INPIT
    • 要解决的问题:即使在火焰表面到达活塞顶表面或孔壁表面的时间和之后,提供能够精确地预测燃烧速率进行的内燃机的燃烧率预测系统。 解决方案:通过使用一维CFD算术运算,活塞速度进度Sp(θ)和最短距离进位Lw(θ)提供的燃烧速度进度Sf和s(θ)来计算火焰表面到达定时θw(步骤106 )。 通过使用最小二乘法将Wiebe函数Xb和wb(θ)与从点火正时θi到达定时θw的燃烧速度进行Xb和s(θ)拟合,得到Wiebe参数a,m,θb和θp (步骤108)。 燃烧率进行Xb和wb(θ)通过在Wiebe函数Xb和wb(θ)中代入Wiebe参数a,m,θb和θp来进行预测(步骤110)。 版权所有(C)2008,JPO&INPIT