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    • 92. 发明专利
    • Intake device of internal combustion engine
    • 内燃机装置
    • JP2003293778A
    • 2003-10-15
    • JP2002101661
    • 2002-04-03
    • Toyota Motor Corpトヨタ自動車株式会社
    • KATO YUICHIICHINOSE HIROKIWAKAO KAZUHIROOZAWA MASAHIROMURASE SUNAO
    • F02B31/00F02M69/00
    • Y02T10/146
    • PROBLEM TO BE SOLVED: To provide an intake device of an internal combustion engine for preventing over rich of fuel by preventing accumulated fuel from rushing into a combustion chamber. SOLUTION: An intake pipe 2 is provided with an intake flow control valve 4, and an opening 4A for mainly passing air is formed at an upward position of the intake flow control valve 4. An engine ECU controls opening or closing of the intake flow control valve 4. When liquid accumulation of fuel F occurs on the downstream side of the intake flow control valve 4, the accumulated fuel can be gradually made to flow into the combustion chamber 14 by finely opening or closing the intake flow control valve 4. COPYRIGHT: (C)2004,JPO
    • 要解决的问题:提供一种用于通过防止积聚的燃料冲入燃烧室来防止过多的燃料的内燃机的进气装置。

      解决方案:进气管2设置有进气流量控制阀4,并且在进气流量控制阀4的上方形成有用于主要通过空气的开口4A。发动机ECU控制打开或关闭 进气流量控制阀4.当在进气流量控制阀4的下游侧出现燃料F的液体积聚时,通过精细地打开或关闭进气流量控制阀4,能够逐渐使累积的燃料流入燃烧室14 版权所有(C)2004,JPO

    • 93. 发明专利
    • 内燃機関の制御装置
    • 内燃机控制器
    • JP2014231819A
    • 2014-12-11
    • JP2013114208
    • 2013-05-30
    • トヨタ自動車株式会社Toyota Motor Corp
    • WAKAO KAZUHIRO
    • F02D41/04F02D19/06F02D41/02F02D41/34F02D45/00
    • F02D19/081F02D19/061F02D19/0634F02D19/0639F02D19/0692F02D19/084F02D19/087F02D19/088F02D41/0025F02D41/3005F02D41/3094F02D2041/3881F02D2200/0611F02D2200/0612Y02T10/36
    • 【課題】筒内直接噴射とポート噴射を併用するデュアル噴射型内燃機関において、燃焼の安定化を図り、空燃比ばらつきを低減する。【解決手段】本発明の内燃機関の制御装置は、アルコールと炭化水素系燃料とが混合した燃料を使用可能な、デュアル噴射型内燃機関に適用される。この制御装置による制御では、燃料アルコール濃度がゼロの場合の燃料噴射量に対する、筒内噴射される燃料とポート噴射される燃料とのそれぞれのアルコール濃度に応じた燃料の増量割合である第1増量値と第2増量値とが取得される。更に、燃料のアルコール濃度がゼロであるとした場合に、各気筒に供給されるべき燃料の総量である基本総噴射量が取得される。筒内噴射量は、燃料のアルコール濃度がゼロであるとした場合に、筒内噴射弁から噴射されるべき噴射量とされる。また筒内噴射量とポート噴射量とを合計した噴射量は、基本総噴射量を第1増量値及び第2増量値に応じて増量した総燃料量となるように決定される。【選択図】図3
    • 要解决的问题:确保使用气缸方向注射和端口注射的双注射内燃机的稳定燃烧和降低空燃比不均匀性。解决方案:根据本发明的内燃机控制器应用于双注入 能够使用其中混合有醇和烃类燃料的燃料的内燃机。 在由该控制器施加的控制中,第一增加值和第二增加值是经过汽缸喷射到酒精浓度的燃料的增加速率和经过端口喷射的燃料的增加速率到酒精浓度 分别相对于燃料的醇浓度为零的情况下的燃料喷射量。 此外,如果燃料的醇浓度为零,则获取作为供给到各气缸的燃料的总量的基本总喷射量。 气缸喷射量是如果燃料的醇浓度为零,则从气缸喷射阀喷射燃料的喷射量。 此外,由于根据第一增加值和第二增加量增加基本总喷射量,所以确定气缸喷射量和喷射口量之和的喷射量等于总喷射量 值。
    • 95. 发明专利
    • Control device of internal combustion engine
    • 内燃机控制装置
    • JP2013133791A
    • 2013-07-08
    • JP2011286123
    • 2011-12-27
    • Toyota Motor Corpトヨタ自動車株式会社
    • TSUKAKOSHI TAKAHIROMORITA KOJIWAKAO KAZUHIROKATO YOSHIEMATSUDA KAZUHISA
    • F02D45/00F02D41/04F02D41/34F02M63/00
    • Y02T10/44
    • PROBLEM TO BE SOLVED: To properly estimate a fuel concentration even if an engine is stopped in the middle of fuel switching after refueling and diffusion progresses during the stop, when estimating the fuel concentration at the position of a fuel injection valve in consideration of fuel movement in a fuel passage.SOLUTION: When the fuel is being switched (S204), it is determined whether a difference between a start time alcohol concentration ekalc at the position of a fuel property sensor and a concentration learning value EG at previous stop is larger than a predetermined reference value or not (S208). When the difference is larger than the reference value, a correction factor kis calculated (S210) based on a difference between a concentration at engine stop of a previous trip and a concentration at engine start of the present trip, a concentration distribution in the fuel passage at the engine stop of the previous trip and an elapsed time (soak time) from the engine stop to the start. When the difference is equal to or below the reference value, the correction factor kis set at 1 (S122). The correction factor kis used to correct a concentration estimate of fuel at the position of the fuel injection valve.
    • 要解决的问题:即使在停止期间在加油和扩散进行之后发动机在燃料切换中停止时也能适当地估计燃料浓度,当考虑燃料运动来估计燃料喷射阀的位置处的燃料浓度时 在燃料通路中。解决方案:当燃料切换时(S204),确定燃料特性传感器的位置处的开始时间酒精浓度ekalc与先前停止时的浓度学习值EG之间的差是否大于 预定的参考值(S208)。 当差值大于参考值时,基于先前行程的发动机停止浓度与当前行程的发动机起动浓度之间的差异计算校正因子kis(S210),燃料通道中的浓度分布 在先前行程的发动机停止和从发动机停止到开始的经过时间(浸泡时间)。 当差值等于或低于参考值时,校正因子kis设置为1(S122)。 校正因子kis用于校正在燃料喷射阀的位置处的燃料的浓度估计。
    • 96. 发明专利
    • Control apparatus of internal combustion engine
    • 内燃机控制装置
    • JP2012229667A
    • 2012-11-22
    • JP2011099027
    • 2011-04-27
    • Toyota Motor Corpトヨタ自動車株式会社
    • WAKAO KAZUHIROSASAI YOSHIE
    • F02D41/04F02D19/08F02D41/02F02D45/00F02P5/15
    • Y02T10/46
    • PROBLEM TO BE SOLVED: To provide a control apparatus of an internal combustion engine that minimizes aggravation of controllability of the internal combustion engine while allowing variation in an estimated value of an alcohol concentration of injection fuel, even if it is difficult to accurately detect a change of the alcohol concentration of the injection fuel due to a change of the alcohol concentration of fuel associated with refueling.SOLUTION: The apparatus includes an ethanol concentration sensor that is arranged in the middle of a fuel supply passage for supplying fuel in a fuel tank to an injector and detects an ethanol concentration, in which ethanol, gasoline, or mixed fuel thereof is supplied to the fuel tank. The apparatus includes a device for estimating the ethanol concentration of fuel injected from the injector in a mode of the concentration with a band of fluctuation, on the basis of an output of the ethanol concentration sensor. A target value of an amount of fuel injection is set to a value appropriate to the highest alcohol concentration value in the band of fluctuation.
    • 要解决的问题:提供一种内燃机的控制装置,其使得内燃机的可控性的加重最小化,同时允许喷射燃料的酒精浓度的估计值的变化,即使难以准确地 检测由于与加油相关的燃料的醇浓度的变化引起的燃料的酒精浓度的变化。 该装置包括乙醇浓度传感器,该乙醇浓度传感器设置在燃料供给通道的中间,用于将燃料箱中的燃料供应到喷射器,并检测其中乙醇,汽油或其混合燃料为乙醇浓度的乙醇浓度 供应到燃油箱。 该装置包括基于乙醇浓度传感器的输出,以具有波动带的浓度的模式来估计从喷射器喷射的燃料的乙醇浓度的装置。 将燃料喷射量的目标值设定为适于波动带内的最高醇浓度值的值。 版权所有(C)2013,JPO&INPIT
    • 97. 发明专利
    • Failure detection device of internal combustion engine
    • 内燃机故障检测装置
    • JP2012225184A
    • 2012-11-15
    • JP2011091152
    • 2011-04-15
    • Toyota Motor Corpトヨタ自動車株式会社
    • WAKAO KAZUHIROSASAI YOSHIE
    • F02D45/00F02D19/08F02D41/02F02D41/04F02D41/14F02M37/00
    • Y02T10/123
    • PROBLEM TO BE SOLVED: To provide a failure detection device that can identify a failure site when an internal combustion engine that can use a fuel including alcohol fails.SOLUTION: The detection device corrects a sensor output value of a fuel residual amount sensor by using a sensor output value of an alcohol concentration sensor and diagnoses whether the accuracy of the corrected sensor output value is normal by using a prescribed reference value that does not depend on an alcohol concentration. The detection device compares an estimated value of the alcohol concentration and the sensor output value of the alcohol concentration sensor and thereby, diagnoses whether the correspondence relation between the two values is normal. The detection device determines whether a failure arises in the internal combustion engine by combining the above two diagnosis; and if a failure actually arises, the detection device determines where the failure arises in the alcohol concentration sensor, fuel residual amount sensor, or a fuel injection control system including an injector and an intake air volume sensor.
    • 要解决的问题:提供一种故障检测装置,当能够使用包括酒精的燃料的内燃机故障时,能够识别故障现场。 解决方案:检测装置通过使用酒精浓度传感器的传感器输出值来校正燃料剩余量传感器的传感器输出值,并且通过使用规定的参考值来诊断校正的传感器输出值的精度是否正常, 不依赖酒精浓度。 检测装置将酒精浓度的估计值与酒精浓度传感器的传感器输出值进行比较,从而诊断两者之间的对应关系是否正常。 检测装置通过组合上述两种诊断来确定内燃机是否发生故障; 如果实际发生故障,则检测装置判定酒精浓度传感器,燃料残留量传感器或包括喷射器和进气体积传感器的燃料喷射控制系统在哪里发生故障。 版权所有(C)2013,JPO&INPIT
    • 98. 发明专利
    • Internal combustion engine control device
    • 内燃机控制装置
    • JP2012193633A
    • 2012-10-11
    • JP2011056460
    • 2011-03-15
    • Toyota Motor Corpトヨタ自動車株式会社
    • SASAI YOSHIEWAKAO KAZUHIRO
    • F02M25/08F02D19/08F02D45/00
    • PROBLEM TO BE SOLVED: To properly conduct purge control, even if concentration of alcohol in fuel changes due to fuel supply.SOLUTION: The engine 10 includes: a fuel tank 36 where a gasoline or alcoholic fuel is stored; a canister 38 that adsorbs an evaporation fuel generated in the fuel tank 36; and a purge control valve 44 that introduces the vaporation fuel adsorbed by the canister 38 into an intake air system as a purge gas. An ECU 60 periodically detects concentration of the alcohol in the fuel by an alcohol concentration sensor 54. Moreover, the ECU, when the concentration of the alcohol changes, controls a degree of opening of the purge control valve 44 based on the concentration before and after it changes. Accordingly, even if the concentration of the alcohol due to the fuel supply, or the like changes, the purge control can be conducted properly, A/F can be prevented from being disturbed due to excessive purge, and an opportunity for releasing the purge gas can be sufficiently secured.
    • 要解决的问题:即使燃料中的酒精浓度由于燃料供应而变化,也要正确进行清洗控制。 发动机10包括:燃料箱36,其中存储汽油或酒精燃料; 吸收在燃料箱36中产生的蒸发燃料的罐38; 以及将由罐38吸附的蒸发燃料引入作为吹扫气体的进气系统的清洗控制阀44。 ECU60通过酒精浓度传感器54周期性地检测燃料中的醇的浓度。此外,当醇的浓度变化时,ECU基于前后的浓度来控制净化控制阀44的打开程度 它改变了。 因此,即使由于燃料供给等导致的醇的浓度变化,可以适当地进行吹扫控制,可以防止由于过度吹扫而导致的A / F受到干扰,并且能够释放吹扫气体 可以充分保证。 版权所有(C)2013,JPO&INPIT
    • 99. 发明专利
    • Controller of internal combustion engine
    • 内燃机控制器
    • JP2012057570A
    • 2012-03-22
    • JP2010203037
    • 2010-09-10
    • Toyota Motor Corpトヨタ自動車株式会社
    • SASAI YOSHIEWAKAO KAZUHIRO
    • F02D41/04F02D19/08F02D41/02F02D41/14F02D43/00F02D45/00
    • PROBLEM TO BE SOLVED: To reflect a change in the concentration of fuel injected from a fuel injection valve to air-fuel ratio control with higher accuracy.SOLUTION: In a controller for controlling an internal combustion engine in which mixed fuel mixed of hydrocarbon fuel and alcohol is usable as engine fuel, single component concentration in the mixed fuel is detected as detection concentration according to the output of a concentration sensor, and an estimation value of the single component concentration in the mixed fuel just before being injected from the fuel injection valve is calculated as estimation concentration according to a volume of fuel piping between a concentration detection position of the concentration sensor and the fuel injection valve. Accumulated fuel injection quantity between a first changing point recognized that detection concentration has stated simple increase or simple decrease and a second changing point recognized that exhaust gas concentration of the internal combustion engine has started simple increase or simple decrease is calculated as fuel consumption quantity. Fuel injection quantity injected from the fuel injection valve is corrected according to the difference between a volume from a fuel sensor to the fuel injection valve and the fuel consumption quantity.
    • 要解决的问题:将从燃料喷射阀喷射的燃料浓度的变化反映成具有更高精度的空燃比控制。 解决方案:在用于控制其中混合燃料和醇的混合燃料可用作发动机燃料的内燃机的控制器中,根据浓度传感器的输出检测混合燃料中的单一成分浓度 计算出从燃料喷射阀喷射之前的混合燃料中的单一成分浓度的估计值,作为与浓度传感器的浓度检测位置和燃料喷射阀之间的燃料管路的体积的估计浓度。 在第一变化点之间的累积燃料喷射量被认为是检测浓度已经表示简单的增加或简单的降低,而第二变化点被认为是内燃机的废气浓度已经开始简单的增加或简单的减少作为燃料消耗量。 根据从燃料传感器到燃料喷射阀的体积和燃料消耗量之间的差来校正从燃料喷射阀喷射的燃料喷射量。 版权所有(C)2012,JPO&INPIT
    • 100. 发明专利
    • Device for control of hybrid vehicle
    • 混合动力车辆控制装置
    • JP2011246042A
    • 2011-12-08
    • JP2010122933
    • 2010-05-28
    • Toyota Motor Corpトヨタ自動車株式会社
    • WAKAO KAZUHIROSASAI YOSHIE
    • B60W10/06B60K6/445B60W20/00F02D29/02F02D45/00
    • Y02T10/6239
    • PROBLEM TO BE SOLVED: To provide a device for control of a hybrid vehicle that can quickly consume reservoir fuel unsuitable for outside air temperature in the hybrid vehicle with an internal combustion engine and an electric motor as power sources.SOLUTION: Threshold air temperatures T1 and T2 corresponding to fuel density of reservoir fuel are computed (step 100). It is determined whether outside air temperature T detected by a temperature sensor 34 is higher than the threshold air temperature T1 (step 102). Consequently, when the relation of T>T1 is valid, the EV range is reduced rather than the normal time (step 104). When the relation of T>T1 is not valid, it is determined whether the outside air temperature T is lower than threshold outside air temperature T2 (step 106). Consequently, when the relation of T
    • 要解决的问题:提供一种用于控制混合动力车辆的装置,其能够快速地消耗不适合混合动力车辆中的外部空气温度的油箱燃料,其中内燃机和电动机作为动力源。 解决方案:计算对应于储层燃料的燃料密度的阈值空气温度T1和T2(步骤100)。 确定由温度传感器34检测到的外部空气温度T是否高于阈值空气温度T1(步骤102)。 因此,当T> T1的关系有效时,EV范围减小而不是正常时间(步骤104)。 当T> T1的关系无效时,确定外部空气温度T是否低于外部空气温度T2的阈值(步骤106)。 因此,当T