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    • 12. 发明专利
    • Fuel injection control device and fuel injection system using the same
    • 燃油喷射控制装置和燃料喷射系统
    • JP2009024667A
    • 2009-02-05
    • JP2007191097
    • 2007-07-23
    • Denso Corp株式会社デンソー
    • ASANO MASAHIROTAKEMOTO HIDETSUGUTARUSAWA YUKI
    • F02D41/14F02D41/38
    • F02D41/3836F02D41/123F02D41/2438F02D41/2441F02D41/2467
    • PROBLEM TO BE SOLVED: To provide a fuel injection control device highly accurately correcting an injection amount for each injection pressure and reducing variation in engine operational status as far as possible to learn the injection amount, and to provide a fuel injection system using the same. SOLUTION: When a learning condition of the injection amount of the fuel injection valve is satisfied, an upper limit value of injection pressure learning the injection amount is set. Target injection pressure learning the injection amount is set within a range of the upper limit value or less, and the injection pressure is increased or decreased to the target injection pressure by such as a high pressure pump. When the injection pressure reaches the target injection pressure, the fuel injection valve injects the fuel by an injection pulse signal according to a learning command injection amount. An actual injection amount of the fuel injection valve is acquired by a variation amount of the engine operational status such as an engine speed. Based on difference between the learning command injection amount instructed to the fuel injection amount and the actual injection amount, a correction value of the injection amount is calculated, and an injection amount characteristics map indicating characteristics of injection amount with respect to a pulse width of the injection pulse signal for each target injection pressure is corrected. COPYRIGHT: (C)2009,JPO&INPIT
    • 要解决的问题:为了提供一种高精度地校正每个喷射压力的喷射量并且尽可能地减小发动机操作状态的变化以了解喷射量的燃料喷射控制装置,并且提供一种使用 一样。 解决方案:当满足燃料喷射阀的喷射量的学习条件时,设定学习喷射量的喷射压力的上限值。 学习注射量的目标注射压力设定在上限值以下的范围内,并且通过高压泵将注射压力增加或降低到目标注射压力。 当注射压力达到目标喷射压力时,燃料喷射阀根据学习指令喷射量通过喷射脉冲信号喷射燃料。 燃料喷射阀的实际喷射量是通过诸如发动机转速的发动机运行状态的变化量获得的。 基于指示到燃料喷射量的学习指令喷射量与实际喷射量之间的差异,计算喷射量的校正值,并且指示喷射量相对于脉冲宽度的喷射量的特性的喷射量特性图 针对每个目标喷射压力的喷射脉冲信号被校正。 版权所有(C)2009,JPO&INPIT
    • 13. 发明专利
    • Fuel injection quantity control device and internal combustion engine provided with same
    • 燃油喷射量控制装置和内燃机
    • JP2007187009A
    • 2007-07-26
    • JP2006003398
    • 2006-01-11
    • Denso CorpToyota Industries CorpToyota Motor Corpトヨタ自動車株式会社株式会社デンソー株式会社豊田自動織機
    • ANZAI SHUNSUKEHAYASHI TAKAHIROHIROZAWA YOSHIHISAINABA TAKAYOSHITARUSAWA YUKI
    • F02D45/00F02D41/04F02D41/38
    • F02D41/3836F02D41/2438F02D41/2441F02D41/2454F02D41/247F02D41/403F02D2200/025Y02T10/44
    • PROBLEM TO BE SOLVED: To provide a fuel injection quantity control device performing learning control of fuel injection quantity capable of defining an appropriate learning value for fuel injection pressure over a wide range, especially for high fuel injection pressure while eliminating driver's sense of incongruity due to combustion noise generated at a time of learning control, and an internal combustion engine provided with the control device.
      SOLUTION: The fuel injection quantity control device performs single injection for learning control after raising rail pressure to a learning subject rail pressure higher than the current rail pressure by driving a high pressure fuel pump 4 (ST4) if background noise (engine noise and road noise) is relatively high (ST2, Yes) when pilot injection quantity learning control execution conditions are satisfied. On the other hand, the fuel injection quantity control device performs single injection for learning control after the rail pressure drops to the learning subject rail pressure lower than the current rail pressure if background noise (engine noise and road noise) is relatively low.
      COPYRIGHT: (C)2007,JPO&INPIT
    • 要解决的问题:提供一种执行燃料喷射量的学习控制的燃料喷射量控制装置,其能够在宽范围内特别是对于高燃料喷射压力定义燃料喷射压力的适当学习值,同时消除驾驶员的感觉 由于在学习控制时产生的燃烧噪声引起的不协调,以及配备有该控制装置的内燃机。 解决方案:如果背景噪声(发动机噪声),燃料喷射量控制装置通过驱动高压燃料泵4(ST4),将轨道压力升高到高于当前轨道压力的学习目标轨道压力,进行学习控制的单次喷射 道路噪声)相当高(ST2,是),当导频喷射量学习控制执行条件成立时。 另一方面,如果背景噪声(发动机噪声和道路噪声)相对较低,则在轨道压力下降到低于当前轨道压力的学习对象轨道压力之后,燃料喷射量控制装置执行用于学习控制的单次喷射。 版权所有(C)2007,JPO&INPIT
    • 15. 发明专利
    • Abnormality diagnostic device for exhaust emission control device
    • 用于排气排放控制装置的非正常诊断装置
    • JP2011179340A
    • 2011-09-15
    • JP2010041753
    • 2010-02-26
    • Denso Corp株式会社デンソー
    • NODA KEIJIKOKUBO NAOKITARUSAWA YUKINISHIJIMA YOSHIAKIMATSUI YOSHIHIKOKOGA TATSUROSAITO MAKOTO
    • F01N3/18F01N3/08F01N3/20F01N3/24
    • F01N11/00F01N3/0814F01N3/0842F01N2550/03F01N2560/00Y02T10/47
    • PROBLEM TO BE SOLVED: To provide an abnormality diagnostic device for an exhaust emission control device, diagnosing the presence or absence of abnormality regarding the exhaust emission control device employing a method for absorbing and removing a specific component in exhaust gas by using absorbing liquid. SOLUTION: This abnormality diagnostic device for an exhaust emission control device is applied to exhaust emission control devices 20, 30 which hold the absorbing liquid absorbing the contacted specific component when the absorbing liquid is brought into contact with the specific component (for example, NOx and CO2) in the exhaust gas, which are arranged in an exhaust pipe 11, and which absorb and remove the specific component by bringing the absorbing liquid into contact with the exhaust gas. The abnormality diagnostic device includes state sensors (ph sensors 22e, 32e) for detecting an absorbing liquid state. It is determined based on the detection values from the state sensors whether or not emission control functions by the exhaust emission control devices 20, 30 are abnormal. For example, when the amount of NOx absorbed in the absorbing liquid calculated based on the detection values from the state sensors is remarkably small with respect to NOx emissions discharged from a combustion chamber per predetermined time, it is determined that the emission control functions by the exhaust emission control devices are abnormal. COPYRIGHT: (C)2011,JPO&INPIT
    • 解决问题的方案为了提供一种废气排放控制装置的异常诊断装置,使用吸收和排出废气中的特定成分的方法来诊断排气排放控制装置的异常的有无。 液体。 解决方案:这种用于废气排放控制装置的异常诊断装置被应用于废气排放控制装置20,30,废气排放控制装置20,30在吸收液体与特定部件接触时保持吸收接触的特定成分的吸收液体(例如 ,NOx和CO 2),其排列在排气管11中,并且通过使吸收液体与废气接触而吸收和去除特定成分。 异常诊断装置包括用于检测吸收液体状态的状态传感器(ph传感器22e,32e)。 基于来自状态传感器的检测值确定废气排放控制装置20,30的排放控制功能是否异常。 例如,当根据来自状态传感器的检测值计算的吸收液体中吸收的NOx的量相对于从每个预定时间从燃烧室排出的NOx排放量非常小时,确定排放控制由 废气排放控制装置异常。 版权所有(C)2011,JPO&INPIT
    • 16. 发明专利
    • Specification discriminating device of internal combustion engine and inertial moment detection device
    • 内燃机和惯性检测装置的规格鉴定装置
    • JP2009287398A
    • 2009-12-10
    • JP2008137525
    • 2008-05-27
    • Denso Corp株式会社デンソー
    • MORIMOTO SHINICHITARUSAWA YUKI
    • F02D45/00F02D29/00
    • PROBLEM TO BE SOLVED: To provide a specification discriminating device of an internal combustion engine for avoiding the erroneous setting by a manual input error in a specification of the internal combustion engine. SOLUTION: This specification discriminating device for discriminating the specification of the internal combustion engine, has reduction state detecting means S12, S16 and S17 for detecting a reduction quantity ΔNE or a reduction speed Δω (a reduction state) of a rotating speed NE in a fuel injection cut period and in a speed reduction period for reducing the rotating speed NE of a crankshaft (an output shaft), and a specification discriminating means S18 for discriminating whether a specification of a transmission is any of a manual type or an automatic type as the specification of the internal combustion engine based on the reduction quantity ΔNE or the reduction speed Δω detected by the reduction state detecting means. COPYRIGHT: (C)2010,JPO&INPIT
    • 要解决的问题:提供内燃机的规格识别装置,用于避免内燃机的规格中的手动输入误差的错误设定。 解决方案:用于识别内燃机的规格的本说明书鉴别装置具有用于检测转速NE的减速量ΔNE或减速速度Δω(减速状态)的减速状态检测装置S12,S16和S17 在燃料喷射切断期间和用于降低曲轴(输出轴)的转速NE的减速时段中,以及用于判别变速器规格是手动式还是自动变速器中的任意一种的规格识别装置S18 根据由减速状态检测装置检测到的减速量ΔNE或减速度Δω,形成内燃机的规格。 版权所有(C)2010,JPO&INPIT
    • 17. 发明专利
    • Fuel injection control device of internal combustion engine
    • 内燃机燃油喷射控制装置
    • JP2009057899A
    • 2009-03-19
    • JP2007226170
    • 2007-08-31
    • Denso Corp株式会社デンソー
    • ASANO MASAHIROTARUSAWA YUKI
    • F02D41/04F02D41/36
    • F02D41/1497F02D41/2438F02D41/2467F02D41/40F02D41/403Y02T10/44
    • PROBLEM TO BE SOLVED: To provide a fuel injection control device of an internal combustion engine capable of preventing the deterioration in learning accuracy by a double mass flywheel, when correcting a fuel injection quantity of the internal combustion engine equipped with the double mass flywheel by learning.
      SOLUTION: This fuel injection control device can accurately determine an engine speed increase quantity δ being a difference between an engine speed variation Δω and an ideal baseline in an engine speed increase part by single-shot injection, since the ideal baseline is determined by using the engine speed variation Δω in a plurality of detection points B and K of not receiving influence of engine speed behavior, before and after the engine speed increase part (detection points C-F), even if the engine speed behavior of an engine vibrates by spring, mass and damper characteristics of the double mass flywheel, when performing the single-shot injection.
      COPYRIGHT: (C)2009,JPO&INPIT
    • 要解决的问题:为了提供一种内燃机的燃料喷射控制装置,其能够通过双重质量飞轮防止学习精度的劣化,当校正配备有双重质量的内燃机的燃料喷射量时 飞轮学习。 解决方案:该燃料喷射控制装置可以通过单次喷射来精确地确定发动机转速增加部分中的发动机转速变化Δω与理想基准之差的发动机转速增加量δ,因为确定了理想基准 通过在发动机转速提高部(检测点CF)之前和之后的多个检测点B和K中不受到发动机转速行为的影响的发动机转速变化Δω,即使发动机的发动机转速行为振动 弹簧,质量和阻尼器特性的双重质量飞轮,当进行单次喷射。 版权所有(C)2009,JPO&INPIT
    • 18. 发明专利
    • Fuel injection control device of internal combustion engine
    • 内燃机燃油喷射控制装置
    • JP2009057898A
    • 2009-03-19
    • JP2007226169
    • 2007-08-31
    • Denso Corp株式会社デンソー
    • ASANO MASAHIROTARUSAWA YUKI
    • F02D45/00F02D41/14F02D41/38F02D41/40
    • F02D41/40F02D41/1497F02D41/2438F02D41/2441F02D41/2448F02D41/2467F02D2200/0616F02D2200/502Y02T10/44
    • PROBLEM TO BE SOLVED: To provide a fuel injection control device of an internal combustion engine capable of completing a correction with a fewer times of data acquisition, when correcting a fuel injection quantity of the internal combustion engine by learning.
      SOLUTION: An addition average value of an injection quantity difference is determined every time when arithmetically operating the injection quantity difference, and its addition average value is compared with a threshold value α. When an absolute value of the specified number of addition average values is smaller than an absolute value of the threshold value α, its addition average value is set as the final injection quantity difference. Since the addition average value of the injection quantity difference is normally converged in response to an increase in the addition average number, the threshold value α is set in response to its convergence. Thus, when the injection quantity difference of an injector is large and the addition average value is not converged in a predetermined range divided by the threshold value α, since the absolute value of the addition average value exceeds the absolute value of the threshold value α in the few acquired data number, learning injection can be early corrected.
      COPYRIGHT: (C)2009,JPO&INPIT
    • 要解决的问题:提供一种内燃机的燃料喷射控制装置,能够通过学习来校正内燃机的燃料喷射量,能够以更少的数据采集次数完成校正。 解决方案:每次当计算喷射量差时运算喷射量差的加法平均值,并将其加法平均值与阈值α进行比较。 当指定数量的相加平均值的绝对值小于阈值α的绝对值时,将其相加平均值设定为最终喷射量差。 由于喷射量差的相加平均值响应于相加平均数的增加而正常地收敛,因此响应于其收敛而设定阈值α。 因此,当喷射器的喷射量差大并且相加平均值不会收敛在预定范围内除以阈值α时,由于相加平均值的绝对值超过阈值α的绝对值 少数获得的数据号,学习注入可以早日纠正。 版权所有(C)2009,JPO&INPIT
    • 19. 发明专利
    • Injection-quantity learning device
    • 注射量学习装置
    • JP2009052442A
    • 2009-03-12
    • JP2007218573
    • 2007-08-24
    • Denso Corp株式会社デンソー
    • INABA TAKAYOSHIOKI MAMORUTARUSAWA YUKI
    • F02D45/00F02D41/40
    • F02D41/2467F02D41/2438F02D41/3809F02D2200/0602F02M63/025F02M2200/24
    • PROBLEM TO BE SOLVED: To provide an injection-quantity learning device for learning the injection quantity of a fuel in a wide pressure range in a short period of time.
      SOLUTION: When there is an undetected high rail pressure for which the learning of fuel injection quantity is not completed, the learning of fuel injection quantity is performed according to the rail pressure for which the learning has been completed. In this case, the learning of the fuel injection quantity at the undetected rail pressure is performed by using the learned value of the fuel injection quantity learned at a rail pressure with increased correlation to the undetected rail pressure. Even when the chance of learning of a minute fuel injection quantity is less in the same way as when the pressure in a common rail is high, therefore, the change of the fuel injection quantity due to the change of the characteristic with time of the injector is learned. As a result, the error between an actually measured value and the learned value is reduced in the wide range of the rail pressure, and the fuel injection quantity is precisely controlled.
      COPYRIGHT: (C)2009,JPO&INPIT
    • 要解决的问题:提供一种用于在短时间内学习在宽压力范围内的燃料的喷射量的喷射量学习装置。

      解决方案:当燃料喷射量学习未被检测到的高轨道压力未完成时,根据完成学习的轨道压力来进行燃料喷射量的学习。 在这种情况下,通过使用与未检测到的轨道压力相关性增加的轨道压力学习的燃料喷射量的学习值来进行未检测轨道压力下的燃料喷射量的学习。 因此,即使在与共轨的压力相同的时候,与燃料喷射量相同的时候,燃料喷射量的学习时间较少,所以由于喷射器的特性随时间的变化而导致的燃料喷射量的变化 被学习。 结果,实际测量值和学习值之间的误差在轨道压力的宽范围内减小,并且燃料喷射量被精确地控制。 版权所有(C)2009,JPO&INPIT

    • 20. 发明专利
    • Fuel injection control device and fuel injection system using the same
    • 燃油喷射控制装置和燃料喷射系统
    • JP2009030491A
    • 2009-02-12
    • JP2007193685
    • 2007-07-25
    • Denso Corp株式会社デンソー
    • ASANO MASAHIROTAKEMOTO HIDETSUGUTARUSAWA YUKI
    • F02D41/14F02D41/40
    • F02D41/2467F02D41/0087F02D41/123F02D41/1497F02D41/2438
    • PROBLEM TO BE SOLVED: To provide a fuel injection control device preventing drop of learning accuracy of injection correction quantity with taking fluctuation of load acting at a drive side into consideration, and a fuel injection system using the same.
      SOLUTION: Learning command injection quantity is commanded to a fuel injection valve for learning injection quantity to carry out learning injection (S302). When load fluctuation acts on a crankshaft which is at a drive side of a torque transmission system during injection quantity learning, it is judged whether magnitude of load fluctuation exceeds a predetermined value or not (S308). When the magnitude of load fluctuation exceeds the predetermined value, injection learning is suspended. When the magnitude of load fluctuation does not exceed the predetermined value, rotation speed rise quantity raised by carrying out learning injection is calculated with taking the magnitude of load fluctuation into consideration (S310). Actual injection quantity of the fuel injection valve is calculated based on the calculated rotation speed rise quantity, injection correction quantity correcting injection quantity characteristics indicating a relation between injection quantity and pulse width of injection pulse signal is calculated based on difference between learning command injection quantity and actual injection quantity (S312).
      COPYRIGHT: (C)2009,JPO&INPIT
    • 要解决的问题:提供一种燃料喷射控制装置以及使用该燃料喷射控制装置的燃料喷射系统,该燃料喷射控制装置防止喷射校正量的学习精度降低,同时考虑到在驱动侧作用的负载的波动。 解决方案:向学习喷射量的燃料喷射阀指令学习指令喷射量进行学习喷射(S302)。 当在喷射量学习期间负载波动作用于在扭矩传递系统的驱动侧的曲轴上时,判断负载波动的大小是否超过预定值(S308)。 当负载波动的大小超过预定值时,停止注入学习。 当负载波动的大小不超过预定值时,考虑负载波动的大小来计算通过进行学习注入而提高的转速上升量(S310)。 基于计算出的转速上升量来计算燃料喷射阀的实际喷射量,基于学习指令喷射量与喷射量之间的差异来计算表示喷射脉冲信号的喷射量与脉冲宽度的关系的喷射修正量校正喷射量特性 实际喷射量(S312)。 版权所有(C)2009,JPO&INPIT