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    • 1. 发明专利
    • Engine rotation stop control device
    • 发动机旋转停止控制​​装置
    • JP2012102695A
    • 2012-05-31
    • JP2010253508
    • 2010-11-12
    • Denso CorpToyota Motor Corpトヨタ自動車株式会社株式会社デンソー
    • MASUDA SATORUNAKAMURA YOSHIFUMIOKAMURA KOJIYOSHIHARA MASATOMO
    • F02D29/02F02D17/00F02D29/00F02D29/06F16H61/02F16H61/684
    • PROBLEM TO BE SOLVED: To enhance accuracy of engine rotation stop control, by allowing influence of an automatic transmission to be suppressed, when engine combustion is stopped to perform the engine rotation stop control.SOLUTION: When an engine stop request (idle stop request) occurs during engine operation, a neutral shift control for shifting an automatic transmission 37 to a neutral state (state without power transmission) is performed, and then, when the shifting of the automatic transmission 37 to a neutral state is completed, combustion in an engine 11 is stopped and engine rotation stop control is performed. In the engine rotation stop control, alt. F/B (alternator feedback) stop control for feedback-controlling load torque of an alternator (generator) so as to adjust an actual engine rotation behavior to a target track is performed. Then, when an engine restart request occurs, the automatic transmission 37 is returned to a non-neutral state (state allowing power transmission), and then fuel injection is resumed to restart the engine 11.
    • 要解决的问题:为了提高发动机转速停止控制的精度,通过抑制自动变速器的影响,当发动机燃烧停止时进行发动机转速停止控制。

      解决方案:当发动机运转期间发生发动机停止请求(怠速停止请求)时,执行将自动变速器37换档到空档状态(无动力传递状态)的空档换档控制,然后,当变速 完成空档状态的自动变速器37,发动机11的燃烧停止,进行发动机转速停止控制。 在发动机旋转停止控制​​中,alt。 执行用于交流发电机(发电机)的反馈控制负载转矩的F / B(交流发电机反馈)停止控制,以便调整到目标轨道的实际发动机旋转行为。 然后,当发动机重起请求发生时,自动变速器37返回到非中立状态(允许动力传递的状态),然后恢复燃料喷射以重新启动发动机11.版权所有(C)2012年, JPO&INPIT

    • 2. 发明专利
    • Malfunction determination device for crank angle detecting device
    • 用于起重机角度检测装置的故障确定装置
    • JP2011007586A
    • 2011-01-13
    • JP2009150500
    • 2009-06-25
    • Denso CorpToyota Motor Corpトヨタ自動車株式会社株式会社デンソー
    • ONO TOSHIHIROMASUDA SATORUNAKAMURA YOSHIFUMIUCHIDA AKITOYOSHIHARA MASATOMOOKAMURA KOJI
    • G01D5/244F02D45/00
    • PROBLEM TO BE SOLVED: To provide a malfunction determination device which can correctly determine failure of a crank angle detecting device which outputs pulse signals whose time widths when a crankshaft is in a normal rotation state and in a reverse rotation state are different from each other.SOLUTION: The crank angle detecting device 40 outputs a pulse signal having a time width α when the crankshaft is in the normal rotation state, and a pulse signal having a time width β different when the crankshaft is in the reverse rotation state at each 10 CAs, and outputs a pulse signal at a cog lacking part 34 of a signal rotor 30 at an angle interval different from those at portions before and after the lacking part. An ECU 50 detects the cog lacking part 34 on the basis of time intervals between pulse signals output from the crank angle detecting device 40, and determines the failure of the crank angle detecting device 40 on the basis of the frequency of detecting the cog lacking part 34.
    • 要解决的问题:提供一种可以正确地确定曲轴转角检测装置的故障的故障确定装置,其输出当曲轴处于正常旋转状态和反转状态时的时间宽度彼此不同的脉冲信号。 解决方案:当曲轴处于正常旋转状态时,曲轴转角检测装置40输出具有时间宽度α的脉冲信号,并且当曲轴处于每10个CA处于反转状态时具有时间宽度β不同的脉冲信号 并且以与缺少部分之前和之后的部分不同的角度间隔在信号转子30的齿轮缺少部分34处输出脉冲信号。 ECU50基于从曲柄角检测装置40输出的脉冲信号之间的时间间隔来检测齿轮缺失部34,并且基于检测到齿轮缺失部的频率来判定曲柄角检测装置40的故障 34。
    • 3. 发明专利
    • Road surface slope determination method and control device for on-vehicle internal combustion engine
    • 道路表面坡度确定方法及用于车内内燃机的控制装置
    • JP2010249080A
    • 2010-11-04
    • JP2009101341
    • 2009-04-17
    • Denso CorpToyota Motor Corpトヨタ自動車株式会社株式会社デンソー
    • OKAMURA KOJIYOSHIHARA MASATOMONAKAMURA YOSHIFUMIUCHIDA AKITOKATO MINORUHATTA YUJIMASUDA SATORU
    • F02D29/02B60T8/172B60W40/06
    • PROBLEM TO BE SOLVED: To provide a road surface slope determination method improving the determination accuracy of a road surface slope using brake master pressure which is a value reflecting a brake stepping amount by a driver and deceleration of wheel speed, and a control device for an on-vehicle internal combustion engine which controls the operation of the internal combustion engine using the road surface slope determination method.
      SOLUTION: The slope of a running road surface is determined using the brake master pressure as a pressurizing degree of brake fluid, and the deceleration calculated based on a degree of change in the wheel speed of a vehicle decelerated by stepping of a brake pedal. Whether the running road surface is flat or sloped is determined using a brake master pressure detected after "500 ms" from a detection of change in the brake master pressure as the brake master pressure, and using deceleration calculated from the wheel speed detected when the brake master pressure is detected after "500 ms" as the deceleration, and the wheel speed detected further after "500 ms" from the detection of the wheel speed.
      COPYRIGHT: (C)2011,JPO&INPIT
    • 要解决的问题:提供一种路面坡度确定方法,其使用作为反映驾驶员的制动步进量的值的制动主压力和车轮速度的减速度来提高路面坡度的判定精度,以及控制 用于车载内燃机的装置,其使用路面坡度确定方法来控制内燃机的操作。 解决方案:使用制动器主压力作为制动液的加压度来确定行驶路面的坡度,并且基于通过制动器的步进减速的车辆的车轮速度的变化程度计算的减速度 踏板。 运行路面是平坦的还是倾斜的,使用从制动主压力的变化检测出的“500ms”以后检测到的制动主控制作为制动主压力,并且使用从制动器 在“500 ms”后检测到主压力作为减速度,并且从检测到车轮速度后的“500 ms”后进一步检测车轮速度。 版权所有(C)2011,JPO&INPIT
    • 4. 发明专利
    • Automatic stop/start control device for internal combustion engine
    • 用于内燃机的自动停止/起动控制装置
    • JP2010242563A
    • 2010-10-28
    • JP2009090550
    • 2009-04-02
    • Denso CorpToyota Motor Corpトヨタ自動車株式会社株式会社デンソー
    • MASUDA SATORUOKAMURA KOJIYOSHIHARA MASATOMO
    • F02P5/15F02D17/00F02D29/02
    • F02N11/0844F02P5/1506Y02T10/46Y02T10/48
    • PROBLEM TO BE SOLVED: To suppress vibration of a vehicle when restart of an engine is requested during fuel cut/engine speed drop in an idle stop control to restart an engine, to prevent engine stall, and to improve acceleration response in sudden acceleration request.
      SOLUTION: When the restart is requested during the fuel cut/engine speed drop in the idle stop control, it is determined whether an increase in engine speed should come first or suppression of vehicular vibration should come first, based on a parameter associated with at least one of friction of the engine, rotation fluctuation, and an acceleration degree requested by a driver. When it is determined that the increase in engine speed should come first, ignition timing in restart is set to be an advance side setting value (ignition timing on an advance side more than the ignition timing before generation of the restart request). On the other hand, when it is determined that the suppression of vehicular vibration should come first, ignition timing in the restart is set to be a retard side setting value (ignition timing on a more retarding side than the ignition timing before generation of the restart request).
      COPYRIGHT: (C)2011,JPO&INPIT
    • 要解决的问题:为了在怠速停止控制中的燃料切断/发动机转速下降期间要求发动机重新起动以重新启动发动机时抑制车辆的振动,以防止发动机停转,并且突然地改善加速响应 加速请求。 解决方案:当在怠速停止控制中的燃料切断/发动机速度下降期间请求重新启动时,确定发动机转速的增加是否首先出现,或者基于相关联的参数来首先抑制车辆振动 具有发动机的摩擦,旋转波动和驾驶员要求的加速度的至少一个。 当确定发动机转速的增加首先出现时,再起动时的点火正时被设定为提前侧设定值(超前侧的点火正时大于再生请求生成前的点火正时)。 另一方面,当确定车辆振动的抑制应该首先出现时,再起动时的点火正时被设定为延迟侧设定值(比重启前的点火正时更多的延迟侧的点火正时 请求)。 版权所有(C)2011,JPO&INPIT
    • 5. 发明专利
    • Control device of internal combustion engine
    • 内燃机控制装置
    • JP2010065529A
    • 2010-03-25
    • JP2008229665
    • 2008-09-08
    • Denso CorpToyota Motor Corpトヨタ自動車株式会社株式会社デンソー
    • NAKAMURA YOSHIFUMIYOSHIHARA MASATOMOUCHIDA AKITOOKAMURA KOJIHATTA YUJIMASUDA SATORU
    • F02D29/02F02D41/08F02D45/00
    • PROBLEM TO BE SOLVED: To provide a control device of an internal combustion engine capable of suitably making both compatible in reduction in fuel consumption by the automatic stopping-starting function and stabilization of an engine operation state by the learning function.
      SOLUTION: This device learns a learning value on the suction air volume capable of stably operating the internal combustion engine in idle operation, and adjusts the suction air volume based on the learning value, and has the automatic stopping-starting function of temporarily automatically stopping the internal combustion engine when a predetermined stopping condition including a condition where an engine operation area is a specific operation area containing an idle operation area is realized and restarting the internal combustion engine when a predetermined restarting condition is realized, and executes leaning of the learning value based of this difference ΔGA (S304-S309) by calculating the difference ΔGA from its reference value GATA by detecting the passage intake volume GA in an area except for the specific operation area (S303).
      COPYRIGHT: (C)2010,JPO&INPIT
    • 要解决的问题:提供一种内燃机的控制装置,其能够通过自动停止起动功能适当地兼顾燃料消耗的降低和通过学习功能来稳定发动机运转状态。 解决方案:该装置学习能够在怠速运转中稳定地操作内燃机的吸入空气量的学习值,并且基于学习值来调节吸入空气量,并且具有临时的自动停止启动功能 当实现包括发动机操作区域是包含怠速操作区域的特定操作区域的条件的预定停止条件时,当实现预定重新启动条件时,实现内燃机的自动停止并重新启动内燃机,并且执行 通过在除了特定操作区域之外的区域中检测通道进入量GA,通过从其参考值GATA计算差ΔGA,从而基于该差ΔGA(S304-S309)的学习值(S304-S309)。 版权所有(C)2010,JPO&INPIT
    • 7. 发明专利
    • Knocking determining device for internal combustion engine
    • 用于内燃机的闭锁确定装置
    • JP2007182858A
    • 2007-07-19
    • JP2006002835
    • 2006-01-10
    • Denso CorpToyota Motor Corpトヨタ自動車株式会社株式会社デンソー
    • KANEKO MASATOKASASHIMA KENJIYOSHIHARA MASATOMOASO KOJISENDA KENJITAKEMURA YUICHIOE SHUHEIIWADE JUN
    • F02D45/00
    • G01L23/225
    • PROBLEM TO BE SOLVED: To accurately determine the presence of knocking based on the waveform of vibration of an internal combustion engine.
      SOLUTION: An engine ECU carries out a program including a step (S200) of computing an absolute value ΔS(I) of deviation for every crank angle of the waveform of vibration detected by a knock sensor and a knock waveform model; a step (S304) of correcting the vibration waveform when there is ΔS(I) larger than a threshold value ΔS(O) (Yes in S202), and when the number of ΔS(I) larger than the threshold value ΔS(O) is Q(1) or less (Yes in S300); a step (S308) of computing a correlation coefficient K which is a value related to deviation between the corrected vibration waveform and the knock waveform model; and a step (S400) of computing the correlation coefficient K without correcting the vibration waveform when the number of ΔS(I) larger than the threshold value ΔS(O) is larger than Q(1) (No in S300). The presence of knocking is determined based on the correlation coefficient K.
      COPYRIGHT: (C)2007,JPO&INPIT
    • 要解决的问题:基于内燃机的振动波形来准确地确定爆震的存在。 解决方案:发动机ECU执行程序,该程序包括:计算由爆震传感器和爆震波形模型检测的振动波形的每个曲柄角的偏差绝对值ΔS(I)的步骤(S200) 当存在大于阈值ΔS(0)的ΔS(I)时(S202中的“是”)来校正振动波形的步骤(S304),并且当大于阈值ΔS(0)的ΔS(I) 是Q(1)以下(S300中为是); 计算与校正后的振动波形和爆震波形模型的偏差有关的值的相关系数K的步骤(S308) 以及当大于阈值ΔS(O)的ΔS(I)大于Q(1)时(S300中的否),计算相关系数K而不校正振动波形的步骤(S400)。 基于相关系数K确定爆震的存在。版权所有:(C)2007,JPO&INPIT
    • 8. 发明专利
    • Control unit of internal combustion engine
    • 内燃机控制单元
    • JP2007009734A
    • 2007-01-18
    • JP2005188555
    • 2005-06-28
    • Denso CorpToyota Motor Corpトヨタ自動車株式会社株式会社デンソー
    • YOSHIHARA MASATOMOKASASHIMA KENJIKANEKO MASATOASO KOJISENDA KENJITAKEMURA YUICHIKAMIO SHIGERU
    • F02P5/152F02D45/00F02P5/153
    • Y02T10/46
    • PROBLEM TO BE SOLVED: To provide a control unit of an internal combustion engine which can retard the ignition timing appropriately. SOLUTION: The engine control unit ECU executes a program including: a step (S100) of calculating intensity values LOG(V) of N cycles (N: a natural number) from the intensity of vibration V; a step (S104) of calculating a standard deviation σ(1) in the frequency distribution of the intensity values LOG(V); a step (S108) of calculating a standard deviation σ(2) in the frequency distribution obtained by extracting the top X% (X: a fixed number) of data from the frequency distribution in S104; and a step (S116) of decreasing a judgement value V(KX) when a difference between the standard deviation σ(1) and the standard deviation σ(2) (¾σ(1)-σ(2)¾) is equal to or smaller than a threshold value (YES in S110). When the knocking intensity N calculated based on the waveform of vibration of the engine is larger than the judgement value V(KX), the ignition timing is retarded. COPYRIGHT: (C)2007,JPO&INPIT
    • 要解决的问题:提供可以适当地延迟点火正时的内燃机的控制单元。 解决方案:发动机控制单元ECU执行程序,该程序包括:从振动强度V计算N个循环的强度值LOG(V)(N:自然数)的步骤(S100) 计算强度值LOG(V)的频率分布中的标准偏差σ(1)的步骤(S104); 计算通过在S104中从频率分布中提取数据的前X%(X:固定数)而获得的频率分布中的标准偏差σ(2)的步骤(S108) 以及当标准偏差σ(1)和标准偏差σ(2)(¾σ(1)-σ(2)¾)之间的差等于或等于或小于或等于 小于阈值(S110中为“是”)。 当基于发动机的振动波形计算的爆震强度N大于判定值V(KX)时,点火正时被延迟。 版权所有(C)2007,JPO&INPIT
    • 9. 发明专利
    • Knocking determining device of internal combustion engine
    • 内燃机起动确定装置
    • JP2006307708A
    • 2006-11-09
    • JP2005130017
    • 2005-04-27
    • Denso CorpToyota Motor Corpトヨタ自動車株式会社株式会社デンソー
    • ASO KOJIKASASHIMA KENJIKANEKO MASATOYOSHIHARA MASATOMOSENDA KENJIKAMIO SHIGERU
    • F02D45/00
    • PROBLEM TO BE SOLVED: To accurately determine whether knocking is generated.
      SOLUTION: An engine ECU executes a program including steps of: (S108) subtracting a noise waveform model from a normalized vibration waveform; (S116) calculating knock strength N on the basis of a result of comparing the subtracted vibration waveform with a knock waveform model when there is no angle of becoming smaller than zero in an integral value in the subtracted waveform (NO in S110); (S120) determining that the knocking is generated when the knock strength N is larger than a predetermined determining value (YES in S118); and (S124) determining that the knocking is not generated when the knock strength N is not larger than the predetermined determining value (NO in S118).
      COPYRIGHT: (C)2007,JPO&INPIT
    • 要解决的问题:准确地确定是否产生了敲击。 解决方案:发动机ECU执行包括以下步骤的程序:(S108)从归一化振动波形中减去噪声波形模型; (S116)中,在减法波形中的积分值中没有成为小于零的角度时,基于将减法振动波形与爆震波形模型进行比较的结果来计算爆震强度N(S110中的否)。 (S120),判定当爆震强度N大于预定的确定值时产生爆震(S118中为“是”)。 和(S124),当爆震强度N不大于预定确定值(S118中为“否”)时,确定不产生爆震。 版权所有(C)2007,JPO&INPIT
    • 10. 发明专利
    • Knocking determining device for internal combustion engine
    • 用于内燃机的闭锁确定装置
    • JP2006299995A
    • 2006-11-02
    • JP2005125261
    • 2005-04-22
    • Denso CorpToyota Motor Corpトヨタ自動車株式会社株式会社デンソー
    • KANEKO MASATOKASASHIMA KENJIYOSHIHARA MASATOMOASO KOJISENDA KENJIKAMIO SHIGERUTAKEMURA YUICHI
    • F02D45/00
    • PROBLEM TO BE SOLVED: To precisely determine whether knocking occurs.
      SOLUTION: An engine ECU executes a program which includes steps of: (S102) of calculating such a value (an integrated value) that a value showing the strength of vibration is integrated for every crank angle of 5° on the basis of each frequency band for detecting a vibration waveform; (S104) discriminating whether the vibration of each frequency band includes vibration of noise components; (S106) combining vibration waveforms of other frequency bands than the frequency band including the vibration of noise components and knocking waveform models; (S114) calculating knocking strength N in accordance with the result of comparing the combined vibration waveforms with the combined knocking waveform models; and (S118) determining that knocking occurs when the knocking strength N is greater than a predetermined value (YES in S116).
      COPYRIGHT: (C)2007,JPO&INPIT
    • 要解决的问题:精确确定是否发生爆震。 解决方案:发动机ECU执行程序,该程序包括以下步骤:(S102)计算这样的值(积分值),即,基于以下方式计算每个曲柄角为5度的表示振动强度的值 用于检测振动波形的每个频带; (S104)判断每个频带的振动是否包括噪声分量的振动; (S106)将包括噪声成分和爆震波形模型的振动的频带的其他频带的振动波形组合起来; (S114)根据组合的振动波形与组合的爆震波形模型的比较结果计算爆震强度N; 和(S118)确定当爆震强度N大于预定值时发生爆震(S116中为“是”)。 版权所有(C)2007,JPO&INPIT