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1. 发明专利

JP2013160194A Fuel injection control device for internal combustion engine 审中-公开
标题翻译：用于内燃机的燃油喷射控制装置
公开(公告)号：JP2013160194A
公开(公告)日：2013-08-19
申请号：JP2012024810
申请日：2012-02-08
申请人： Nippon Soken Inc , 株式会社日本自動車部品総合研究所 , Toyota Motor Corp , トヨタ自動車株式会社
发明人： YAMASHITA YUTO , KOBUNA SHUNSUKE , HASEGAWA AKIRA , NISHIDA KENTARO
IPC分类号： F02D43/00 , F02B23/02 , F02B23/04 , F02B31/00 , F02D41/38 , F02D41/40
CPC分类号： Y02T10/125 , Y02T10/146 , Y02T10/44
摘要： PROBLEM TO BE SOLVED: To provide a fuel injection control device with which exhaust emission of an internal combustion engine can be remedied and performance of the internal combustion engine can be improved by effectively utilizing oxygen and fuel within a cylinder.SOLUTION: When main injection is executed from a fuel injection valve including a plurality of nozzle holes in a common rail diesel engine, a swirl downstream-side side face position θL and a swirl upstream-side side face position θU of a fuel spray are calculated and a spray interval θD of sprays adjacent to each other is calculated (steps ST8, ST9, ST10). A fuel injection condition or a swirl control valve opening degree is corrected such that the spray interval θD is settled within a predetermined range (0≤θD≤Th)(step ST12). When the spray interval θD is greater than a spray interval allowable maximum value Th, fuel injection pressure is increased or a swirl speed is increased. When the spray interval θD is smaller than "0", main injection is divided or the swirl speed is decreased.
摘要翻译：要解决的问题：提供一种燃料喷射控制装置，通过有效地利用气缸内的氧气和燃料，能够对内燃机的废气排放进行补救，并且能够提高内燃机的性能。解决方案：主喷射从包括共轨柴油发动机中的多个喷嘴孔的燃料喷射阀，涡流下游侧侧面位置和喷嘴执行L，并且计算燃料喷雾的L和涡流上游侧侧面位置＆amp; 计算喷雾间隔和喷雾量D（步骤ST8，ST9，ST10）。校正燃料喷射状态或旋流控制阀开度，使得喷雾间隔D被设定在规定范围内（0≤＆eta;D≤Th）（步骤ST12）。当喷雾间隔D大于喷雾间隔允许最大值Th时，燃料喷射压力增加或旋转速度增加。当喷雾间隔D小于“0”时，主喷射分离或涡流速度降低。

2. 发明专利

JP2012225196A Fuel injection control device of internal combustion engine 有权
标题翻译：内燃机燃油喷射控制装置
公开(公告)号：JP2012225196A
公开(公告)日：2012-11-15
申请号：JP2011091355
申请日：2011-04-15
申请人： Nippon Soken Inc , Toyota 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
发明人： YAMASHITA YUTO , HASEGAWA AKIRA , NISHIDA KENTARO
IPC分类号： F02D41/04 , F02D41/38 , F02D41/40 , F02M45/08 , F02M61/18
CPC分类号： Y02T10/44
摘要： PROBLEM TO BE SOLVED: To provide a fuel injection control device of an internal combustion engine that prevents overlap of fuel spray in main injection on flame or combustion gas by pre-injection in the internal combustion engine that performs the pre-injection and the main injection.SOLUTION: Whether pre-injection spray flowing in a peripheral direction in a cylinder by swirl flow and main injection spray are overlapped with each other is calculated from a spray target position in the pre-injection and a spray angle of each injection, in a diesel engine in which the pre-injection and the main injection are executed. When both of sprays overlap with each other, the spray angle of the pre-injection is reduced to prevent overlap of the sprays by reducing lift speed of a nozzle needle of a fuel injection valve or common rail pressure during the pre-injection. Accordingly, combustion sound is reduced by shortening an interval between the pre-injection and the main injection, and exhaust emission is reduced by reducing smoke generation amount.
摘要翻译：要解决的问题：提供一种内燃机的燃料喷射控制装置，其通过在执行预喷射的内燃机中预喷射来防止主喷射中的燃料喷射与火焰或燃烧气体的重合，以及主要注射。解决方案：通过旋转流动和主喷射喷雾在气缸中沿圆周方向流动的预喷射喷射彼此重叠，从预喷射中的喷射目标位置和每次喷射的喷射角度计算，在执行预喷射和主喷射的柴油发动机中。当两个喷雾彼此重叠时，预喷射的喷雾角度减小，以防止在喷射期间通过降低燃料喷射阀的喷嘴针头或共轨压力的提升速度来喷射喷雾。因此，通过缩短预喷射和主喷射之间的间隔来减少燃烧声，并且通过减少烟雾产生量来减少废气排放。版权所有（C）2013，JPO＆INPIT

3. 发明专利

JP2010180761A Fuel injection control device 有权
标题翻译：燃油喷射控制装置
公开(公告)号：JP2010180761A
公开(公告)日：2010-08-19
申请号：JP2009024305
申请日：2009-02-04
申请人： Nippon Soken Inc , Toyota 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
发明人： YAMASHITA YUTO , MATSUOKA HIROSHIGE , KITANO YASUSHI
IPC分类号： F02D41/40 , F02D41/38 , F02M45/04 , F02M45/08 , F02M61/10
CPC分类号： Y02T10/44
摘要： PROBLEM TO BE SOLVED: To provide a fuel injection control device capable of restraining a main spray from overlapping with a flame or combustion gas by pilot injection. SOLUTION: This fuel injection control device includes a fuel injection device for directly injecting fuel into a cylinder, and controls fuel injection of an internal combustion engine for generating a swirl flow. The fuel injection device includes a setting means capable of performing main injection and the pilot injection, injecting the fuel outward in the radial direction of the swirl flow in a view in the axial direction of the cylinder and setting a command value T of an interval between the finishing timing of the pilot injection and the starting timing of the main injection, and a determining means for determining whether or not the main spray overlaps with a pilot spray based on a speed Vsw of the detected or estimated swirl flow and the command value. The setting means resets the command value to a value for restraining the main spray from overlapping with the pilot spray (S15) when the determining means determines that the main spray overlaps with the pilot spray based on a predetermined value predetermined as the command value (S13-Y). COPYRIGHT: (C)2010,JPO&INPIT
摘要翻译：要解决的问题：提供一种燃料喷射控制装置，其能够通过引燃喷射来限制主喷雾与火焰或燃烧气体的重叠。解决方案：该燃料喷射控制装置包括用于将燃料直接喷射到气缸中的燃料喷射装置，并且控制用于产生涡流的内燃机的燃料喷射。燃料喷射装置包括能够执行主喷射和引燃喷射的设定装置，在气缸的轴向上沿涡旋流的径向向外喷射燃料，并且设定在气缸的轴向方向之间的间隔的指令值T 引燃喷射的完成时间和主喷射的开始正时;以及确定装置，用于基于检测或估计的涡流的速度Vsw和指令值来确定主喷雾是否与先导喷雾重叠。当确定装置基于预定值作为指令值确定主喷雾与先导喷雾重叠时，设定装置将命令值重置为用于限制主喷雾与引燃喷雾重叠的值（S15）（S13 -Y）。版权所有（C）2010，JPO＆INPIT

4. 发明专利

JP2013024138A Spray characteristic estimator 有权
标题翻译：喷雾特性估算器
公开(公告)号：JP2013024138A
公开(公告)日：2013-02-04
申请号：JP2011159846
申请日：2011-07-21
申请人： Nippon Soken Inc , 株式会社日本自動車部品総合研究所 , Toyota Motor Corp , トヨタ自動車株式会社
发明人： KOJIMA TAKAYOSHI , YAMASHITA YUTO , IKEMOTO MARI
IPC分类号： F02D45/00
摘要： PROBLEM TO BE SOLVED: To provide a spray characteristic estimator capable of preventing an increase of the amount of wet as fuel spray stuck to a cylinder which becomes a factor for generation of unburnt THC in an internal combustion engine capable of injecting a fuel into the cylinder.SOLUTION: In the internal combustion engine (200) having a cylinder injection means (370) capable of injecting the fuel into the cylinder (202), the spray characteristic estimator (100) for estimating spray characteristics of the fuel has a kinematic viscosity identification means for identifying kinematic viscosity of the fuel, a gas condition identification means for identifying a gas condition inside the cylinder, and an estimation means for estimating the spray characteristics on the basis of identified kinematic viscosity and gas condition.
摘要翻译：要解决的问题：提供一种喷雾特性估计器，其能够防止作为燃料喷雾粘附到气缸上的湿度增加，该气缸成为能够喷射燃料的内燃机中产生未燃THC的因素进入圆筒。解决方案：在具有能够将燃料喷射到气缸（202）中的气缸喷射装置（370）的内燃机（200）中，用于估计燃料喷射特性的喷雾特性估计器（100）具有运动学用于识别燃料的运动粘度的粘度识别装置，用于识别气缸内的气体状况的气体状态识别装置，以及用于基于所确定的运动粘度和气体状况来估计喷射特性的估计装置。版权所有（C）2013，JPO＆INPIT

5. 发明专利

JP2012241638A Fuel injection control device of internal combustion engine 审中-公开
标题翻译：内燃机燃油喷射控制装置
公开(公告)号：JP2012241638A
公开(公告)日：2012-12-10
申请号：JP2011113244
申请日：2011-05-20
申请人： Nippon Soken Inc , 株式会社日本自動車部品総合研究所 , Toyota Motor Corp , トヨタ自動車株式会社
发明人： YAMASHITA YUTO , WATANABE HIROKI , NISHIDA KENTARO , HASEGAWA AKIRA
IPC分类号： F02D41/38 , F02B23/06 , F02D41/04 , F02M61/18
CPC分类号： Y02T10/125
摘要： PROBLEM TO BE SOLVED: To provide a fuel injection control device of an internal combustion engine capable of suppressing the occurrence of smoke.SOLUTION: The fuel injection control device is applied to the internal combustion engine 1 with a fuel injection valve 9 directly injecting a fuel into a cylinder 2, and capable of controlling the operation of the fuel injection valve 9 so that main injection and after-injection performed after the main injection are performed during one cycle as fuel injection into the cylinder 2. A position of a flame of a fuel injected in the main injection is estimated, and an injection rate of the fuel injection valve 9 in the after-injection is changed to prevent a fuel injected in the after-injection from reaching the estimated position of the flame.
摘要翻译：要解决的问题：提供能够抑制烟雾发生的内燃机的燃料喷射控制装置。解决方案：燃料喷射控制装置用燃料喷射阀9将燃料直接喷射到气缸2中并且能够控制燃料喷射阀9的操作使得主喷射和在一次循环中执行在主喷射之后执行的后喷射作为燃料喷射到气缸2中。估计在主喷射中喷射的燃料的火焰的位置，并且燃料喷射阀9在后面的喷射速率喷射被改变以防止在后喷射中喷射的燃料达到火焰的估计位置。版权所有（C）2013，JPO＆INPIT

6. 发明专利

JP2012145048A Fuel injection valve 审中-公开
标题翻译：燃油喷射阀
公开(公告)号：JP2012145048A
公开(公告)日：2012-08-02
申请号：JP2011004370
申请日：2011-01-12
申请人： Nippon Soken Inc , Toyota 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
发明人： HAYASHI TOMOHIRO , UMASAKI MASATOSHI , YAMASHITA YUTO , IKEMOTO MARI
IPC分类号： F02M61/18
摘要： PROBLEM TO BE SOLVED: To provide a fuel injection valve having reduced penetration by atomizing fuel and diffusing fuel sprays.SOLUTION: The fuel injection valve 1 includes a nozzle body 2 for injecting fuel from a plurality of nozzles 25 provided at the front end. The nozzles 25 each have a small-diameter part 250 at the center of the nozzles 25 with its cross section having a diameter D, a first tapered part 251 continuous with the small-diameter part 250 on the upstream side of the small-diameter part 250, wherein the cross-section diameter of the nozzle 25 is gradually smaller from the upstream side toward the downstream side, and a second tapered part 252 continuous with the small-diameter part 250 on the downstream side of the small-diameter part 250, wherein the cross-section diameter of the nozzle 25 is gradually larger from the upstream side toward the downstream side. Relationships of 0
摘要翻译：要解决的问题：提供一种通过雾化燃料和扩散燃料喷雾而具有减少的渗透的燃料喷射阀。解决方案：燃料喷射阀1包括用于从设置在前端的多个喷嘴25喷射燃料的喷嘴主体2。喷嘴25各自在喷嘴25的中心处具有小直径部250，其截面具有直径D 0 ，与小直径部分250连续的第一锥形部分251，小径部250的上游侧的直径部250，其中喷嘴25的截面直径从上游侧向下游侧逐渐变小，与小直径部250连续的第二锥形部252 250，其中喷嘴25的横截面直径从上游侧向下游侧逐渐变大。关系0 <（D 1 -D 0 ）/ L 1 <0.028（1），0 1 / D 0 <5.8（2），0 <（D 0 ）/ L 2 （3） 1 是第一锥形部251的喷嘴长度，D 1 是上游端的横截面的直径， L 2 是第二锥形部252的喷嘴长度，D 2 是截面的直径下游端。版权所有（C）2012，JPO＆INPIT

7. 发明专利

JP2014234740A 圧縮着火式内燃機関审中-公开
标题翻译：压缩点火型内燃机
公开(公告)号：JP2014234740A
公开(公告)日：2014-12-15
申请号：JP2013115608
申请日：2013-05-31
申请人：株式会社日本自動車部品総合研究所 , Nippon Soken Inc , トヨタ自動車株式会社 , Toyota Motor Corp
发明人： ANEZAKI YUKINOBU , YAMASHITA YUTO , NISHIDA KENTARO , HASHIZUME TAKESHI
IPC分类号： F02B23/06 , F02F3/26
CPC分类号： Y02T10/125
摘要：【課題】燃料噴射量を増量した場合でも、気筒内の温度上昇による吸気の充填効率低下を抑制しつつ、スキッシュエリア内壁面における冷却損失を抑制し、スモークの排出も抑制する圧縮着火式内燃機関を提供する。【解決手段】燃料が噴射されるキャビティ12がピストン頂面10aの一部に、ピストン頂面外周部13がキャビティ12の周囲にそれぞれ形成されたピストン10を有し、ピストン頂面外周部13とシリンダヘッド内壁面4aとの間にスキッシュエリア15が形成される圧縮着火式内燃機関1Aにおいて、シリンダヘッド内壁面4aのうちピストン頂面外周部13に対向する部分に、シリンダヘッド内壁面4aから後退するヘッド側凹部26が形成されている。【選択図】図1
摘要翻译：要解决的问题：提供一种压缩点火式内燃机，其能够抑制挤压区域的内壁面的冷却损失，并且能够抑制烟雾的排放，同时抑制由于温度升高引起的进气的填充效率的劣化即使在燃料喷射量增加的情况下，压缩点火式内燃机1A包括活塞10，活塞10具有在活塞顶面10a的一部分喷射有燃料的空腔12，活塞顶面外周在空腔12的周围的部分13，在活塞顶面外周部13和气缸盖内壁面4a之间形成有挤压区域15。在与气缸盖内壁面4a的活塞顶面外周部13相对的部分形成有从气缸盖内壁面4a退回的头侧凹部26。

8. 发明专利

JP2014031772A Control device of internal combustion engine 审中-公开
标题翻译：内燃机控制装置
公开(公告)号：JP2014031772A
公开(公告)日：2014-02-20
申请号：JP2012173050
申请日：2012-08-03
申请人： Nippon Soken Inc , 株式会社日本自動車部品総合研究所 , Toyota Motor Corp , トヨタ自動車株式会社
发明人： ANEZAKI YUKINOBU , YAMASHITA YUTO , NISHIDA KENTARO , HASHIZUME TAKESHI
IPC分类号： F02D41/04 , F02B23/06 , F02B31/00 , F02D41/38 , F02D41/40
CPC分类号： Y02T10/125 , Y02T10/146
摘要： PROBLEM TO BE SOLVED: To reduce a generation amount of smoke.SOLUTION: A control device of an internal combustion engine which injects fuel from a fuel injection valve 4 into a cavity 32 formed by concaving a top face of a piston 3, includes control means 20 which reduces the amount of the fuel leaking out of the cavity to a value less than a predetermined amount. If the amount of the fuel leaking out of the cavity were equal to or more than the predetermined amount, a generation amount of smoke would rapidly increase. Therefore, the amount of the fuel leaking out of the cavity is suppressed below the predetermined amount.
摘要翻译：要解决的问题：减少烟雾的产生量。解决方案：一种内燃机的控制装置，其将来自燃料喷射阀4的燃料喷射到通过使活塞3的顶面凹陷而形成的空腔32中，包括控制装置 20，其将从空腔泄漏的燃料量减少到小于预定量的值。如果从腔体泄漏的燃料量等于或大于预定量，则烟雾的产生量将迅速增加。因此，将从空腔泄漏的燃料的量抑制在规定量以下。

9. 发明专利

JP2011001831A Fuel reaching distance estimating device and fuel injection control device 有权
标题翻译：燃油接收距离估算装置和燃油喷射控制装置
公开(公告)号：JP2011001831A
公开(公告)日：2011-01-06
申请号：JP2009143349
申请日：2009-06-16
申请人： Nippon Soken Inc , Toyota 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
发明人： YAMASHITA YUTO , TODA NAOKI , ITO HIROKAZU
IPC分类号： F02D41/38 , F02M51/00
摘要： PROBLEM TO BE SOLVED: To control fuel injection by estimating a reaching distance of a liquid-phase part of fuel while suppressing an excess calculation load.SOLUTION: In this device, a density and temperature in a cylinder of an internal combustion engine are detected as an cylinder inside condition, and injection speeds from a fuel injection valve from a fuel injection start at predetermined time intervals are estimated. Depending on the cylinder inside condition and injection speed, an evaporation life, which is a time until the fuel completely evaporates in the cylinder, is estimated. Depending on the estimated injection speed and evaporation life, a liquid-phase reaching position where the liquid-phase part of the fuel reaches is estimated on each time. In addition, a maximum liquid-phase reaching position as a maximum value is detected out of the estimated reaching positions of the liquid-phase part, and it is determined whether the maximum liquid-phase reaching position is a distance reaching an inner wall surface of the cylinder. When it is determined that the maximum liquid-phase reaching position is the position reaching the inner wall surface of the cylinder, the fuel injection speed is corrected and reduced.
摘要翻译：要解决的问题：通过在抑制过量的计算负荷的同时估计燃料的液相部分的到达距离来控制燃料喷射。解决方案：在该装置中，内燃机的气缸中的密度和温度被检测为汽缸内部条件，并且估计来自燃料喷射阀的从预定时间间隔的燃料喷射开始的喷射速度。根据气缸内部条件和喷射速度，估计蒸发寿命，直到燃料在气缸中完全蒸发的时间。根据估计的喷射速度和蒸发寿命，每次估计燃料到达的液相部分的液相到达位置。此外，从液相部分的估计到达位置中检测出最大液相到达位置为最大值，并且确定最大液相到达位置是否到达达到内壁表面的距离气瓶。当确定最大液相到达位置是到达气缸的内壁表面的位置时，燃料喷射速度被校正和减小。

10. 发明专利

JP2010159731A Fuel injection control device 审中-公开
标题翻译：燃油喷射控制装置
公开(公告)号：JP2010159731A
公开(公告)日：2010-07-22
申请号：JP2009004100
申请日：2009-01-09
申请人： Nippon Soken Inc , Toyota 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
发明人： YAMASHITA YUTO , MATSUOKA HIROSHIGE , KITANO YASUSHI , ITO HIROKAZU
IPC分类号： F02D41/38 , F02D41/02 , F02D41/04
摘要： PROBLEM TO BE SOLVED: To provide a fuel injection control device capable of inhibiting fuel from adhering onto wall surfaces.
SOLUTION: The fuel injection control device for controlling a fuel injection device that injects fuel into a cylinder according to a command value of an injection amount per one time, includes a setting means (S1) for setting command values of an injection amount and an injection pressure, a means for controlling pressures of fuel, a means for setting moving distance (S4) that fuel moves as it is liquid, based on detected or estimated in-cylinder state, and an injection pressure and an injection amount, and a means for setting a predetermined injection pressure at which the moving distance becomes minimum based on the in-cylinder state and the injection amount. The setting means sets a wall surface distance between an injection region and a wall surface in cylinder of the fuel injection device. If a moving distance set based on a first injection pressure and a first injection amount as command values based on an operating condition of the internal combustion engine is larger than the wall surface distance (S5-Y), the setting means sets, as a substitute for the first injection pressure, a predetermined injection pressure, or a second injection pressure between the first injection pressure and the predetermined injection pressure, as a command value of injection pressure (S6).
COPYRIGHT: (C)2010,JPO&INPIT
摘要翻译：要解决的问题：提供一种能够抑制燃料粘附在壁表面上的燃料喷射控制装置。解决方案：用于控制根据每次喷射量的指令值将燃料喷射到气缸中的燃料喷射装置的燃料喷射控制装置包括用于设定喷射量的指令值的设定装置（S1）以及喷射压力，用于控制燃料压力的装置，用于设定燃料以液体为基础的移动距离（S4）的装置，基于检测到或估计的缸内状态，以及喷射压力和喷射量，以及用于基于缸内状态和喷射量来设定移动距离变为最小的预定喷射压力的装置。设定装置设定燃料喷射装置的喷射区域和气缸中的壁面之间的壁面距离。如果基于第一喷射压力和作为基于内燃机的运转状态的指示值设定的第一喷射量的移动距离大于壁面距离（S5-Y），则设定装置作为替代对于第一注射压力，预定的注射压力或第一注射压力和预定注射压力之间的第二注射压力作为注射压力的指令值（S6）。版权所有（C）2010，JPO＆INPIT

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