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    • 1. 发明专利
    • Controller for internal combustion engine
    • 内燃机控制器
    • JP2006233778A
    • 2006-09-07
    • JP2005046060
    • 2005-02-22
    • Nippon Soken IncToyota Motor Corpトヨタ自動車株式会社株式会社日本自動車部品総合研究所
    • UMASAKI MASATOSHINAKAJIMA TATSUSHIIKOMA TAKUYASATO BUNICHIOTANI MOTOKI
    • F02D41/22F02D13/02F02D45/00F02P17/12
    • PROBLEM TO BE SOLVED: To prevent abnormal combustion by suppressing rise of temperature in a cylinder accurately.
      SOLUTION: An ECU performs a program including a step (S100) for detecting signals from an engine rotational speed sensor, a throttle opening sensor, a knock sensor, and a variable valve timing mechanism and a step (S120) for calculating fuel injection time so that fuel injected from a fuel injection valve hits an intake valve, scatters into a part near an ignition plug, and scatters on an exhaust side wall face when abnormal combustion occurs (YES at S110). When sprayed fuel reaches the part near the ignition plug, the ignition plug is cooled to suppress plague and form a weak stratification air-fuel mixture having, in particular, high concentration of air-fuel mixture near the ignition plug. When the sprayed fuel reaches a wall face of an exhaust side combustion chamber, temperature of the wall face of the exhaust side combustion chamber is reduced, exhaust side flame transmission is delayed to suppress knocking, and homogeneous air-fuel mixture is formed in the combustion chamber.
      COPYRIGHT: (C)2006,JPO&NCIPI
    • 要解决的问题:通过精确地抑制气缸中的温度上升来防止异常燃烧。 解决方案:ECU执行包括用于检测来自发动机转速传感器,节气门开度传感器,爆震传感器和可变气门正时机构的信号的步骤(S100)的程序和用于计算燃料的步骤(S120) 喷射时间,使得从燃料喷射阀喷射的燃料撞击进气阀,散射到火花塞附近的部分中,并且当发生异常燃烧时在排气侧壁面上飞散(S110为“是”)。 当喷射燃料到达火花塞附近的部分时,火花塞被冷却以抑制瘟疫并形成弱分层空气 - 燃料混合物,特别是在火花塞附近具有高浓度的空气 - 燃料混合物。 当喷射燃料到达排气侧燃烧室的壁面时,排气侧燃烧室的壁面的温度降低,排气侧火焰传输延迟以抑制爆震,并且在燃烧中形成均匀的空气 - 燃料混合物 室。 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
    • JP2008309131A
    • 2008-12-25
    • JP2007160134
    • 2007-06-18
    • Nippon Soken IncToyota Motor Corpトヨタ自動車株式会社株式会社日本自動車部品総合研究所
    • UEKI TAKESHISAITO KIMITAKAUMASAKI MASATOSHIIKOMA TAKUYAOTANI MOTOKI
    • F02D41/02F02D41/04F02D41/32F02D41/34
    • F02D41/3094F02D41/3836F02D41/402Y02T10/44
    • PROBLEM TO BE SOLVED: To enhance a deposit separating effect so as to prevent deterioration of performance of an internal combustion engine caused by an increase of a deposit accumulation amount, in a certain period of time immediately after changing from fuel injection by only an intake passage injection injector to fuel injection by a cylinder injection injector. SOLUTION: A cylinder injection condition setting section 530 sets conditions for fuel injection from the cylinder injection injector. The cylinder injection condition setting section 530 includes a normal condition setting part 532 and a deposit separating condition setting part 534. The deposit separating condition setting part 534 compares with the fuel injection conditions set by the normal condition setting part 532 and sets fuel injection conditions which are more effective in separating the deposit of the cylinder injection injector in an initial period from the point of changing from a PFI mode in which the cylinder injection is stopped to a cylinder injection mode. More specifically, as compared with the normal time fuel injection conditions, at least one of steps of raising the fuel injection pressure and increasing the number of times of fuel injection per cycle is performed. COPYRIGHT: (C)2009,JPO&INPIT
    • 要解决的问题:为了提高沉积物分离效果,以防止由于仅在燃料喷射改变之后的一定时间内由于沉积物积累量的增加而引起的内燃机性能的劣化 进气通道注射喷射器,由气缸喷射注射器进行燃料喷射。 解决方案:气缸喷射条件设定部530设定来自气缸喷射注射器的燃料喷射的条件。 气缸喷射条件设定部530包括通常条件设定部532和存放分离条件设定部534.沉积分离条件设定部534与由通常条件设定部532设定的燃料喷射条件进行比较,设定燃料喷射条件, 在从气缸喷射停止到气缸喷射模式的PFI模式的变化的初始阶段中分离气缸喷射注射器的沉积更有效。 更具体地,与正常燃料喷射条件相比,执行提高燃料喷射压力和增加每个循环的燃料喷射次数的步骤中的至少一个。 版权所有(C)2009,JPO&INPIT
    • 4. 发明专利
    • Blow-by gas treatment device of internal combustion engine
    • 内燃机的气体处理装置
    • JP2009228529A
    • 2009-10-08
    • JP2008073949
    • 2008-03-21
    • Toyota Motor Corpトヨタ自動車株式会社
    • IKOMA TAKUYA
    • F01M13/00
    • F02D41/2464F02D2250/08
    • PROBLEM TO BE SOLVED: To control a gas flow rate of a blow-by gas flowing into an intake passage from a gas flow-out passage to an optimum value regardless of an individual difference of an internal combustion engine or an individual difference of a PCV valve. SOLUTION: After warm-up of an engine 1 is completed and under a condition that an intake pressure of the engine 1 is not more than a choke pressure, a PCV valve 14 is actuated, so as to find a deviation amount Z relative to a proper value of a flow rate of a blow-by gas flowing in an intake passage 3 from a gas flow-out passage 13 when the PCV valve 14 is opened or closed based on a command step number R. Then, a learning value which is a value corresponding to the deviation amount A is calculated, and the learning value is reflected to the command step number R calculated based on an engine rotation speed and an engine load. Accordingly, by opening or closing the PCV valve 14 based on the command step number R after the learning value is reflected, the deviation relative to the proper value of the flow rate of the blow-by gas flowing to the intake passage 3 from the gas flow-out passage 13 is restrained. COPYRIGHT: (C)2010,JPO&INPIT
    • 要解决的问题:为了控制从气体流出通道流入进气通道的窜缸气体的气体流量到最佳值,而与内燃机的个体差异或个体差异无关 的PCV阀。 解决方案:发动机1的预热完成后,在发动机1的进气压力不大于扼流器压力的条件下,启动PCV阀14,以找到偏差量Z 相对于基于命令步骤编号R,当PCV阀14打开或关闭PCV阀14时,从气体流出通道13在进气通道3中流动的窜气的流量的适当值。然后,学习 计算与偏差量A对应的值的值,并且将学习值反映到基于发动机转速和发动机负荷计算出的指令步数R. 因此,通过反映学习值之后的基于指令步骤编号R的PCV阀14的打开或关闭,相对于从气体流向进气通路3的窜气的流量的适当值的偏差 流出通道13被限制。 版权所有(C)2010,JPO&INPIT
    • 7. 发明专利
    • Cooling device for engine
    • 发动机冷却装置
    • JP2013217343A
    • 2013-10-24
    • JP2012090461
    • 2012-04-11
    • Toyota Motor Corpトヨタ自動車株式会社
    • MORINAKA SHOICHIROIKOMA TAKUYA
    • F01P7/16F01P3/02
    • PROBLEM TO BE SOLVED: To provide a cooling device for an engine in which a thermostat 30 is set at a first inlet 4a for a coolant to a water jacket 4 of a cylinder block 2, the thermostat for regulating an inflow amount of the coolant from the first inlet 4a, and a second inlet 4b is disposed in the vicinity of the first inlet 4a for always allowing the coolant to flow into the water jacket 4 in the block, in which the thermostat 30 can be actuated responding not to a temperature of the coolant flowing from the second inlet 4b but to a temperature of the coolant after recovering the heat of a wall 2b of a cylinder 2a in the water jacket 4 in the block.SOLUTION: A partition member 44 is disposed between a thermostat 30 and a second inlet 4b to partition these elements from each other. A communication part 51 is disposed between the partition member 44 and the thermostat 30 for communicating a water jacket 4 in the block and a water jacket 5 in a head.
    • 要解决的问题:为了提供一种用于发动机的冷却装置,其中恒温器30被设置在用于冷却剂的第一入口4a到气缸体2的水套4上,用于调节冷却剂的流入量的恒温器 第一入口4a和第二入口4b设置在第一入口4a附近,用于总是允许冷却剂流入块中的水套4,其中恒温器30可以被致动而不响应于温度 冷却剂从第二入口4b流出,但是在回收块体中的水套4中的气缸2a的壁2b的热量之后到达冷却剂的温度。解决方案:分隔构件44设置在恒温器30和 第二入口4b以将这些元件彼此分隔开。 连通部51设置在分隔构件44和恒温器30之间,用于连通块体中的水套4和头部中的水套5。
    • 8. 发明专利
    • Fuel supply system of internal combustion engine
    • 内燃机燃油供应系统
    • JP2010229995A
    • 2010-10-14
    • JP2009161041
    • 2009-07-07
    • Toyota Motor Corpトヨタ自動車株式会社
    • AKITA TATSUHIKOIKOMA TAKUYA
    • F02D41/04F02D41/06F02D41/34F02D45/00F02M37/00F02M63/00
    • F02D41/3094F02D2041/3881F02D2200/0602F02D2250/02
    • PROBLEM TO BE SOLVED: To provide a fuel supply system of an internal combustion engine in which an amount of vapor-containing fuel ejected from a fuel injection valve can be more reduced. SOLUTION: The fuel supply system 20 of the internal combustion engine is equipped with: a port ejecting injector 22 for ejecting low-pressure fuel discharged from a low-pressure fuel pump 32; and a feed pressure control mechanism 50 for relieving fuel based on a state that feed pressure PF fed to the injector 22 exceeds first control pressure PC1 or high-pressure side second controlling pressure control PC2. Furthermore, the fuel supply system is provided with: a high-pressure fuel pump 60 for pressurizing the fuel discharged from the low-pressure fuel pump 32; and an in-cylinder ejecting injector 21 for ejecting high-pressure fuel discharged from this pump 60. Then, a determination time period TEX after being switched from one of the first control pressure PC1 and second control pressure PC2 to the other with regard to control pressure PC intervenes, and thereafter injection limiting control for inhibiting the fuel injection of the port ejecting injector 22 is performed. COPYRIGHT: (C)2011,JPO&INPIT
    • 解决的问题:提供一种内燃机的燃料供给系统,其中可以进一步减少从燃料喷射阀喷出的含蒸汽的燃料量。 解决方案:内燃机的燃料供给系统20配备有:用于喷射从低压燃料泵32排出的低压燃料的喷口喷射器22; 以及用于基于供给到喷射器22的供给压力PF超过第一控制压力PC1或高压侧第二控制压力控制PC2的状态来释放燃料的进给压力控制机构50。 此外,燃料供给系统设置有:用于对从低压燃料泵32排出的燃料加压的高压燃料泵60; 以及用于喷射从该泵60排出的高压燃料的缸内喷射喷射器21.然后,从控制中的第一控制压力PC1和第二控制压力PC2中的一个切换到另一控制压力PC2之后的确定时间段TEX 压力PC介入,然后执行用于禁止喷射口喷射器22的燃料喷射的喷射限制控制。 版权所有(C)2011,JPO&INPIT
    • 9. 发明专利
    • Control device of internal combustion engine
    • 内燃机控制装置
    • JP2009215907A
    • 2009-09-24
    • JP2008058041
    • 2008-03-07
    • Toyota Motor Corpトヨタ自動車株式会社
    • IKOMA TAKUYA
    • F02M25/07F01M13/00F02D13/02
    • Y02T10/121
    • PROBLEM TO BE SOLVED: To provide a control device of internal combustion engine that can achieve both inhibition of accumulation of carbon deposits in an air intake passage and reduction in a fuel consumption amount.
      SOLUTION: An internal combustion engine is provided with a valve timing change mechanism at air intake side, a valve timing change mechanism at exhaust side, and a blow-by gas treatment device. When an operating condition of the internal combustion engine is in a specific operating condition where oil volume within the air intake passage becomes smaller (S103:YES, or S107:YES), exhaust gas volume, which is refluxed to the air intake passage, is increased (S104, or S108) by changing an valve overlap period to a longer period, compared with when it is in an operating condition other than the specific operating condition.
      COPYRIGHT: (C)2009,JPO&INPIT
    • 解决的问题:提供一种内燃机的控制装置,其能够实现抑制进气通路中的碳沉积物的积聚和减少燃料消耗量。 解决方案:内燃机在进气侧具有气门正时改变机构,排气侧的气门正时更换机构和窜气处理装置。 当内燃机的运转状况处于进气通道内的油量变小的特定运转状态(S103:是,否则为S107:是)时,回流到进气通路的排气量为 与特定操作条件以外的操作条件相比,通过将阀重叠期间改变为更长的时间来增加(S104或S108)。 版权所有(C)2009,JPO&INPIT