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    • 1. 发明专利
    • Control device of internal combustion engine
    • 内燃机控制装置
    • JP2006258036A
    • 2006-09-28
    • JP2005078459
    • 2005-03-18
    • Toyota Motor Corpトヨタ自動車株式会社
    • KONOSE KENICHI
    • F02D41/22F02D41/04F02D41/34F02D45/00F02M63/00
    • F02D41/221F02D41/009F02D41/1454F02D41/187F02D41/20F02D41/3094F02D2041/2003F02D2200/0602
    • PROBLEM TO BE SOLVED: To efficiently detect disconnection failure of an injector including specification of the injector causing the disconnection failure, in an internal combustion engine having a plurality of injectors.
      SOLUTION: A driving control circuit 520d supplies electric power to solenoid coils 111#1 to 111#4 in the injector for cylinder injection of cylinders #1 to #4 in response to fuel injection signals IJt-d1 to IJt-d4. Disconnection detecting circuits 530d and 535d for detecting the disconnection failure in the injector for the cylinder injection, are arranged so as to be used in common between the cylinders different in phase of respective strokes by 360 degrees in crank angle. An engine ECU 300 detects failure including the specification of the injector causing the disconnection failure on the basis of failure detecting signals IJf-da to IJf-db from the disconnection detecting circuits 530d and 535d and the crank angle CA detected by a crank angle sensor 480 and informs a driver of its result.
      COPYRIGHT: (C)2006,JPO&NCIPI
    • 要解决的问题:在具有多个喷射器的内燃机中,有效地检测包括引起断线故障的喷射器的指示的喷射器的断开故障。 解决方案:响应于燃料喷射信号IJt-d1至IJt-d4,驱动控制电路520d向用于气缸注射气缸#1至#4的喷射器中的电磁线圈111#1至111#4提供电力。 用于检测用于气缸喷射的喷射器中的断开故障的断路检测电路530d和535d被布置成在各个行程的不同相位的气缸之间共同使用360度的曲柄角。 发动机ECU300根据来自断路检测电路530d,535d的故障检测信号IJf〜da〜IJf-db以及由曲轴转角传感器480检测到的曲柄角CA,检测包括喷射器的指定的引起断线故障的故障 并通知驾驶员其结果。 版权所有(C)2006,JPO&NCIPI
    • 2. 发明专利
    • Control device of internal combustion engine
    • 内燃机控制装置
    • JP2006258026A
    • 2006-09-28
    • JP2005078358
    • 2005-03-18
    • Toyota Motor Corpトヨタ自動車株式会社
    • SHOGENJI YOSHIYUKIKONOSE KENICHI
    • F02D41/04F02D41/02F02D41/34F02M25/08F02M63/00
    • F02D41/0042F02D41/3094
    • PROBLEM TO BE SOLVED: To avoid inconvenience when executing purge processing of evaporated fuel gas, in an internal combustion engine having an injector for cylinder injection and an injector for intake passage injection. SOLUTION: An engine ECU executes a program including a step (S520) of calculating a purge quantity reduction value of the injector for the cylinder injection as fpg × r and a purge quantity reduction value of the injector for the intake passage injection as fpg × (1-r), when performing the purge processing by sharing in the ratio, when the jetting-sharing ratio (r) is not 0 and 1, and a step (S560) of calculating a correction fuel injection quantity of the injector for the intake passage injection, when the fuel injection quantity of the injector for the cylinder injection calculated by using the purge quantity reduction value becomes less than a minimum injection quantity (YES in S550), by calculating the correction fuel injection quantity of the injector for the cylinder injection by increasing the fuel injection quantity up to a minimum fuel injection quantity, and subtracting the increased quantity from a fuel injection quantity of the injector for the intake passage injection. COPYRIGHT: (C)2006,JPO&NCIPI
    • 要解决的问题:为了避免在执行气缸喷射用喷射器的内燃机和进气通道喷射用喷射器的内燃机中执行蒸发燃料气体的吹扫处理时的不便。 解决方案:发动机ECU执行程序,该程序包括计算用于气缸喷射的喷射器的吹扫量减少值为fpg×r的步骤(S520)和用于进气通道喷射的喷射器的吹扫量减少值为 fpg×(1-r),当喷射共享比(r)不为0和1时,当以比例共享进行吹扫处理时,以及计算喷射器的校正燃料喷射量的步骤(S560) 对于进气通道喷射,当通过使用吹扫量减少值计算的用于气缸喷射的喷射器的燃料喷射量变得小于最小喷射量(S550中为“是”)时,通过计算喷射器的校正燃料喷射量, 通过将燃料喷射量增加到最小燃料喷射量来进行气缸喷射,并且从用于进气通道喷射的喷射器的燃料喷射量减去增加量 。 版权所有(C)2006,JPO&NCIPI
    • 4. 发明专利
    • Controller of internal combustion engine
    • 内燃机控制器
    • JP2007032311A
    • 2007-02-08
    • JP2005213616
    • 2005-07-25
    • Toyota Motor Corpトヨタ自動車株式会社
    • TAWARA TATSUYAKONOSE KENICHI
    • F02D41/14F02D41/02F02D45/00
    • PROBLEM TO BE SOLVED: To suppress an air-fuel ratio from becoming lean as compared with a target air-fuel ratio due to the shortage of fuel amount jetted during cold starting after an engine is temporarily stopped by using the learned value of the feedback correction amount of a jetted fuel amount provided when the dilution of oil with fuel is large.
      SOLUTION: An engine ECU performs a program including a step (S100) of performing an oil dilution rate calculation processing, a step (S200) of determining whether an oil dilution rate is large or not, and a step (S300) of prohibiting the storage of learned values within a range smaller than a threshold when the oil dilution rate is large (YES in S200). The smaller the learned value is calculated, the reduction correction amount of the jetted fuel amount is more increased.
      COPYRIGHT: (C)2007,JPO&INPIT
    • 要解决的问题:为了抑制由于在发动机暂时停止后的冷启动期间喷射的燃料量不足而导致的与目标空燃比相比的空燃比变得贫乏, 当燃料油的稀释量大时提供的喷射燃料量的反馈校正量。 解决方案:发动机ECU执行包括执行油稀释率计算处理的步骤(S100)的程序,确定油稀释率是否大的步骤(S200),以及步骤(S300), 当油稀释率大时,禁止在小于阈值的范围内存储学习值(S200中为“是”)。 计算学习值越小,喷射燃料量的减少校正量越增加。 版权所有(C)2007,JPO&INPIT
    • 5. 发明专利
    • Internal combustion engine control device
    • 内燃机控制装置
    • JP2009036044A
    • 2009-02-19
    • JP2007199323
    • 2007-07-31
    • Toyota Motor CorpYamaha Motor Co Ltdトヨタ自動車株式会社ヤマハ発動機株式会社
    • SHOGENJI YOSHIYUKIKONOSE KENICHIHIROWATARI SEIJITAWARA TATSUYAFUJIKI TOSHITAKA
    • F02D41/06F02D43/00F02D45/00F02P5/15
    • Y02T10/46
    • PROBLEM TO BE SOLVED: To appropriately return an internal combustion engine from an unstable operation condition to a stable operation condition when controlling a significant delay in ignition timing for warming up an exhaust emission control catalyst for the internal combustion engine.
      SOLUTION: In a two-dimensional space for an engine speed and a load factor, when an engine operation condition enters an unstable area caused by the amount of intake air (Fa=ON, Yes in S124) or an unstable area caused by a combustion state (Fb=ON, Yes in S130), a process is performed for exiting from each unstable area (S128 or S134). Throttle opening Ta control (S128) is performed for exiting from the unstable area caused by the amount of intake air. Ignition timing control and fuel injection timing control (S134) are performed for exiting from the unstable area caused by the combustion state. In the significant delay in the ignition timing for warming up the exhaust emission control catalyst, an unstable operation factor is determined by each unstable area and an appropriate process in response to each unstable area is performed. Therefore, the engine can be appropriately returned from the unstable operation condition to the stable operation condition.
      COPYRIGHT: (C)2009,JPO&INPIT
    • 要解决的问题:当控制用于预热用于内燃机的废气排放控制催化剂的点火正时的显着延迟时,适当地将内燃机从不稳定的运行状态恢复到稳定运行状态。 解决方案:在用于发动机转速和负载系数的二维空间中,当发动机运转状态进入由进气量(Fa = ON,S124中为“是”)或不稳定区域引起的不稳定区域时 通过燃烧状态(S130中为Fb = ON,是),执行从每个不稳定区域退出的处理(S128或S134)。 执行节气门开度Ta控制(S128),以由进气量引起的不稳定区域离开。 执行点火正时控制和燃料喷射正时控制(S134)以从由燃烧状态引起的不稳定区域中排出。 在排气排放控制催化剂的点火正时的显着延迟中,由各个不稳定区域决定不稳定的运转系数,并对每个不稳定区域进行适当的处​​理。 因此,可以将发动机从不稳定运转状态适当地返回到稳定运转状态。 版权所有(C)2009,JPO&INPIT
    • 8. 发明专利
    • Controller of internal combustion engine
    • 内燃机控制器
    • JP2007032322A
    • 2007-02-08
    • JP2005213633
    • 2005-07-25
    • Toyota Motor Corpトヨタ自動車株式会社
    • MIYAZAKI KAZUMASAKONOSE KENICHI
    • F02D41/04F02B17/00F02D41/14F02M63/00
    • F02D41/3845F02D41/3094
    • PROBLEM TO BE SOLVED: To realize good control characteristics even in the abrupt change of a target fuel pressure in the high-pressure fuel pump of a direct-injection engine. SOLUTION: An engine ECU performs a program including a step (S210) of prohibiting the calculation of an integration item Qi when it detect the abrupt change of a target fuel pressure P (O) (YES in S200), a step (S230) of detecting an actual fuel pressure (S220) and calculating a fuel pressure difference ΔP by deducting an actual fuel pressure from a target fuel pressure P(O), and a step (S250) of allowing the calculation of the integration item Qi when the fuel pressure difference ΔP becomes less than a threshold (YES in S240). COPYRIGHT: (C)2007,JPO&INPIT
    • 要解决的问题:即使在直接喷射发动机的高压燃料泵中的目标燃料压力的突然变化中也能实现良好的控制特性。 解决方案:发动机ECU执行包括步骤(S210)的程序,当步骤(S210)检测到目标燃料压力P(O)的突然变化时(S200中为是)禁止积分项目Qi的计算,步骤 S220),通过从目标燃料压力P(O)中减去实际燃料压力来计算燃料压力差ΔP,以及允许计算积分项目Qi的步骤(S250) 燃料压力差ΔP变得小于阈值(S240中为“是”)。 版权所有(C)2007,JPO&INPIT
    • 9. 发明专利
    • Controller of internal combustion engine
    • 内燃机控制器
    • JP2007032321A
    • 2007-02-08
    • JP2005213632
    • 2005-07-25
    • Toyota Motor Corpトヨタ自動車株式会社
    • MIYAZAKI KAZUMASAKONOSE KENICHI
    • F02D41/20F02B17/00F02D41/06F02D41/08F02D41/14F02D41/16F02D45/00F02M37/08F02M63/00F02M69/00
    • F02D41/3845F02D41/3094
    • PROBLEM TO BE SOLVED: To realize good control characteristics according to operating conditions in a high-pressure fuel pump of a direct-injection engine. SOLUTION: An engine ECU performs a program including a step (S210) of initializing an integration item Qi and a learning integration item Qi (0) during the start of the engine (YES in S200), a step (S260) storing the integration item Qi in converged state as the learning integration item Qi(O) when the integration itme is converged to a target fuel pressure (YES in S250) by learning the integration item Qi (S240) in an idle state (YES in S230), and a step (S310) of changing the integration item Qi to the learning integration item Qi (O) when entering an idle state after normal control (YES in S290). COPYRIGHT: (C)2007,JPO&INPIT
    • 要解决的问题:根据直接喷射发动机的高压燃料泵中的操作条件实现良好的控制特性。 发动机ECU执行包括在发动机启动期间初始化积分项目Qi和学习积分项目Qi(0)的步骤(S210)的程序,步骤(S260)存储 通过在空闲状态下学习积分项目Qi(S240),当积分itme收敛到目标燃料压力(S250中为“是”)时,积分状态下的积分项目Qi作为学习积分项目Qi(O)(S230中为是) 以及在正常控制之后进入空闲状态时将积分项目Qi改变为学习积分项目Qi(O)的步骤(S310)(S290中为是)。 版权所有(C)2007,JPO&INPIT
    • 10. 发明专利
    • Control device of internal combustion engine
    • 内燃机控制装置
    • JP2006258038A
    • 2006-09-28
    • JP2005078481
    • 2005-03-18
    • Toyota Motor Corpトヨタ自動車株式会社
    • KONOSE KENICHI
    • F02D45/00F02M63/00
    • F02D41/3094F02D41/062F02D41/064
    • PROBLEM TO BE SOLVED: To smoothly start an internal combustion engine by properly setting the fuel injection sharing ratio between both injectors in starting, in the internal combustion engine capable of simultaneously using the injector for cylinder injection and the injector for intake passage injection.
      SOLUTION: The initial setting of the fuel injection sharing ratio (the DI ratio) corresponding to an engine condition, is basically performed in response to supply of a power source to an engine ECU (Step S120). The fact of generating an engine starting request is detected after a predetermined time passes from the supply of the power source (Step S140), and in this case, an initial preset value of the fuel injection sharing ratio is updated in response to the engine condition at that time.
      COPYRIGHT: (C)2006,JPO&NCIPI
    • 要解决的问题:通过在启动时适当地设定两个喷射器之间的燃料喷射分配比率,能够在能够同时使用气缸喷射用喷射器的内燃机和进气通路喷射用喷射器中顺利地起动内燃机 。 解决方案:对应于发动机状态的燃料喷射分配比(DI比)的初始设定基本上是根据向发动机ECU的电源供应而执行的(步骤S120)。 在从电源的供给经过预定时间之后,检测出发动机起动请求的事实(步骤S140),在这种情况下,根据发动机状态来更新燃料喷射分配率的初始预设值 那时候。 版权所有(C)2006,JPO&NCIPI