公开(公告)号：JP2013032768A

公开(公告)日：2013-02-14

申请号：JP2012063621

申请日：2012-03-21

Applicant: Denso Corp ,  株式会社デンソー ,  Nippon Soken Inc ,  株式会社日本自動車部品総合研究所

Inventor： HOSHI MASAYA ,  SASAKI SATORU ,  WATANABE HIROKI ,  TODA NAOKI

IPC: F02D41/38 ,  F02D45/00

CPC classification number: F02D35/023 ,  F02D41/0025 ,  F02D41/402 ,  F02D41/403 ,  F02D41/405 ,  F02M61/1813 ,  Y02T10/44

Abstract: PROBLEM TO BE SOLVED: To provide a fuel injection control system for an internal combustion engine which improves a combustion amount of fuel in pilot injection regardless of a fuel property.SOLUTION: When the combustion amount of the fuel in the pilot injection is determined not to be in a predetermined range of the combustion amount, a combustion amount changing part 45 increases a frequency of the pilot injection and decreases the combustion quantity for each frequency of the pilot injection. By increasing the frequency of the pilot injection and decreasing the combustion amount for each frequency of the pilot injection, the combustion amount changing part 45 generates a comparatively enriched gaseous mixture near an injector 12. As a result, even in the fuel with a low cetane number, the combustion of the fuel in the pilot injection is accelerated, thus increasing the combustion amount.

Abstract translation: 解决的问题：提供一种用于内燃机的燃料喷射控制系统，该燃料喷射控制系统改善了先导喷射中的燃料的燃烧量，而不管燃料性质如何。 解决方案：当先导喷射中的燃料的燃烧量被确定为不在燃烧量的预定范围内时，燃烧量改变部分45增加引燃喷射的频率并且降低每个燃烧量的燃烧量 飞行员注射的频率。 通过增加先导喷射的频率并减少先导喷射的每个频率的燃烧量，燃烧量变化部分45在喷射器12附近产生相对富集的气体混合物。结果，即使在低十六烷值的燃料中 引燃喷射中的燃料燃烧加速，从而增加燃烧量。 版权所有（C）2013，JPO＆INPIT

公开(公告)号：JP2012241663A

公开(公告)日：2012-12-10

申请号：JP2011114685

申请日：2011-05-23

Applicant: Nippon Soken Inc ,  株式会社日本自動車部品総合研究所 ,  Denso Corp ,  株式会社デンソー

Inventor： ITO MASAHARU ,  SASAKI SATORU

IPC: F02D41/38 ,  F02D41/40

CPC classification number: Y02T10/44

Abstract: PROBLEM TO BE SOLVED: To provide a fuel injection control device facilitating the combustion of fuel in after injection, reducing smoke and enhancing the performance of a diesel engine.SOLUTION: In the fuel injected from an injector 40, the variation of a fuel injection rate at the injection initial stage of an after injection is set larger than a main injection. With this, the flow speed of the fuel injected from the nozzle of the injector 40 is increased, and therefore atomization of the fuel is facilitated and penetrating force of the fuel is increased. Therefore, the injected fuel does not stay near the nozzle and reaches a position distant from the nozzle. With this, spray of the injected fuel is facilitated in mixing with air and dilution is promoted. As a result, even in after injection in which ignition lag is short, the fuel is combusted promptly and uniformly.

Abstract translation: 要解决的问题：提供一种燃料喷射控制装置，其有助于在注射后燃料的燃烧，减少烟雾并提高柴油发动机的性能。 解决方案：在从喷射器40喷射的燃料中，在后喷射的喷射初始阶段的燃料喷射速率的变化被设定为大于主喷射。 由此，从喷射器40的喷嘴喷射的燃料的流速增加，因此燃料的雾化容易，燃料的穿透力增加。 因此，喷射的燃料不会停留在喷嘴附近并且到达远离喷嘴的位置。 由此，与空气混合便于注入燃料的喷雾，促进稀释。 结果，即使在点火滞后短的后喷射中，燃料也被迅速地均匀地燃烧。 版权所有（C）2013，JPO＆INPIT

公开(公告)号：JP2012112326A

公开(公告)日：2012-06-14

申请号：JP2010262503

申请日：2010-11-25

Applicant: Denso Corp ,  株式会社デンソー

Inventor： YOKOTA TAKAMASA ,  NISHIJIMA YOSHIAKI ,  SASAKI SATORU ,  KURONITA TOKUSHI

IPC: F02D19/12 ,  F02B47/02 ,  F02D45/00 ,  F02M25/022

CPC classification number: Y02T10/121

Abstract: PROBLEM TO BE SOLVED: To provide an injection control device for a noncombustible liquid capable of promoting improvements on fuel consumption by increasing vaporized expansion force of the noncombustible liquid.SOLUTION: The injection control device for a noncombustible liquid is applied to an internal combustion engine system having a fuel injection valve 20 for injecting a fuel burned in a combustion chamber 10a of an internal combustion engine 10, and a water injection valve 30 (liquid injection valve) for injecting water (noncombustible liquid) to the combustion chamber. An operation of the water injection valve 30 is controlled so as to inject water while the fuel is burned in the combustion chamber 10a. Accordingly, the injected water is vaporized by directly receiving heat (heat recovery) from a combustion flame. Thus, the vaporized expansion force can be increase since an amount of heat collection can be increased in comparison with a conventional device which recovers heat from a cylinder wall surface, and as a result, improvements on fuel consumption can be promoted.

Abstract translation: 要解决的问题：提供一种能够通过增加不可燃液体的汽化膨胀力来促进燃料消耗改善的不燃液体的喷射控制装置。 解决方案：用于不燃液体的喷射控制装置被应用于具有用于喷射在内燃机10的燃烧室10a中燃烧的燃料的燃料喷射阀20的内燃机系统和喷水阀30 （液体注入阀），用于向燃烧室注入水（不燃性液体）。 控制喷水阀30的操作，以便在燃料在燃烧室10a中燃烧时喷射水。 因此，通过从燃烧火焰直接接受热量（热回收），注入的水被蒸发。 因此，与从气缸壁面回收热量的传统装置相比，可以增加收集量，因此可以增加蒸发膨胀力，结果可以促进燃料消耗的改善。 版权所有（C）2012，JPO＆INPIT

公开(公告)号：JP2011094588A

公开(公告)日：2011-05-12

申请号：JP2009251866

申请日：2009-11-02

Applicant: Denso Corp ,  株式会社デンソー

Inventor： ASANO MASAHIRO ,  TAKASHIMA YOSHIMITSU ,  ISHIZUKA KOJI ,  SASAKI SATORU ,  HIGUCHI KAZUHIRO ,  IKEDA SUMITAKA ,  MORIMOTO YOHEI ,  NISHIMURA MITSUHIRO

IPC: F02D45/00 ,  F02D41/40

CPC classification number: F02D35/023 ,  F02D35/02 ,  F02D35/021 ,  F02D35/028 ,  F02D37/02 ,  F02D41/0002 ,  F02D41/0052 ,  F02D41/1401 ,  F02D41/1438 ,  F02D41/2448 ,  F02D41/2454 ,  F02D41/3836 ,  F02D41/40 ,  F02D2041/1419 ,  F02D2041/1434 ,  F02D2200/025 ,  F02D2200/0625 ,  F02D2250/18

Abstract: PROBLEM TO BE SOLVED: To provide an engine control device, which minimizes addition of a detection function such as a sensor, while reducing a burden of conformance test work requiring a huge number of test times, and highly accurately controls engine output values to request values.
SOLUTION: The correlation between a plurality of sorts of combustion parameters and a plurality of sorts of controlled variables is defined by a controlled variables arithmetic expression 32, so that "optimal controlled variables for a target combustion state" is obtained. Combinations of command values of the plurality of sorts of controlled variables with respect to the target values of the plurality of sorts of combustion parameters are calculated by the controlled variables arithmetic expression 32, so that the burden of conformance test work requring the huge number of tests is reduced. The controlled variables arithmetic expression 32 is corrected based on a detection value of the combustion state detection sensor 13 and is learned, to avoid the shift of correlation defined by the controlled variables arithmetic expression 32 from an actual correlation, caused by change in environmental condition.
COPYRIGHT: (C)2011,JPO&INPIT

Abstract translation: 要解决的问题：提供一种发动机控制装置，其最小化诸如传感器的检测功能的添加，同时减少需要大量测试时间的一致性测试工作的负担，并且高精度地控制发动机输出值 请求值。 解决方案：通过受控变量算术表达式32定义多种燃烧参数和多种控制变量之间的相关性，从而获得“目标燃烧状态的最佳控制变量”。 通过受控变量算术表达式32计算多种控制变量的指令值相对于多种燃烧参数的目标值的组合，使得一致性测试工作的负担需要大量测试 降低了。 基于燃烧状态检测传感器13的检测值来校正受控变量算术表达式32，并且被学习，以避免由受控变量算术表达式32定义的相关性与由环境条件的变化引起的实际相关性的偏移。 版权所有（C）2011，JPO＆INPIT

公开(公告)号：JP2011094585A

公开(公告)日：2011-05-12

申请号：JP2009251863

申请日：2009-11-02

Applicant: Denso Corp ,  株式会社デンソー

Inventor： TAKASHIMA YOSHIMITSU ,  ISHIZUKA KOJI ,  MORIMOTO YOHEI ,  NISHIMURA MITSUHIRO ,  ASANO MASAHIRO ,  IKEDA SUMITAKA ,  HIGUCHI KAZUHIRO ,  SASAKI SATORU

IPC: F02D45/00

CPC classification number: F02D41/1401 ,  F02D35/02 ,  F02D35/021 ,  F02D35/023 ,  F02D35/028 ,  F02D41/1497 ,  F02D41/26 ,  F02D2041/1419 ,  F02D2041/142 ,  F02D2041/1434 ,  F02D2041/1436 ,  F02D2200/025

Abstract: PROBLEM TO BE SOLVED: To provide an engine control device, in which burdens of conformance test work requiring the huge numbers of tests and map preparation work are reduced and controllability of simultaneous matching of a plurality of sorts of engine output values with request values is improved. SOLUTION: Correlation between the plurality of sorts of engine output values and a plurality of sorts of combustion parameters is defined by a combustion parameter arithmetic expression 22, to acquire "an optimal combustion state for a requested engine output value". By using the combustion parameter arithmetic expression 22, combinations of target values of the plurality of sorts of combustion parameters are cooperatively calculated to reduce deviations between the request values and actual values of the plurality of sorts of engine output values. Since a cooperative control is performed, in view of mutual interference between the plurality of sorts of combustion parameters and one engine output value, the controllability to make the plurality of sorts of engine output values simultaneously get closer to the request values is improved. COPYRIGHT: (C)2011,JPO&INPIT

Abstract translation: 要解决的问题：提供一种发动机控制装置，其中需要大量测试和地图准备工作的一致性测试工作的负担被降低，并且可以同时匹配多种引擎输出值与请求的可控性 价值得到改善。 解决方案：通过燃烧参数算术表达式22定义多种发动机输出值和多种燃烧参数之间的相关性，以获得“所要求的发动机输出值的最佳燃烧状态”。 通过使用燃烧参数运算式22，协同地计算多种燃烧参数的目标值的组合，以减少请求值与多种发动机输出值的实际值之间的偏差。 由于执行协同控制，因此考虑到多种燃烧参数和一个发动机输出值之间的相互干扰，提高使多种发动机输出值同时变得更接近于请求值的可控性。 版权所有（C）2011，JPO＆INPIT

公开(公告)号：JP2008274927A

公开(公告)日：2008-11-13

申请号：JP2008027571

申请日：2008-02-07

Applicant: Denso Corp ,  株式会社デンソー

Inventor： KOJIMA AKIKAZU ,  HARAGUCHI HIROSHI ,  MORIMOTO YOHEI ,  KURONITA TOKUSHI ,  SASAKI SATORU

IPC: F02D41/40 ,  F02D41/14 ,  F02D41/38 ,  F02D45/00

Abstract: PROBLEM TO BE SOLVED: To provide a combustion controller for a compression-ignition direct-injection engine and an engine control system, which improve combustion characteristics of the internal combustion engine, especially combustion characteristics relating to main ignition timing of main fuel supplied by main injection. SOLUTION: As a compression-ignition direct-injection engine combustion controller, there are provided programs of: detecting ignition timing of a main injection Mn (main ignition timing); correcting a command value of main injection execution timing in a direction to the side where a detection value (timing t10) is converged within a predetermined range (threshold TH11 to threshold TH12); determining whether the corrected command value is within a predetermined range (range corresponding to judgment value TH13); and when it is determined that the command value is not within the range, correcting a command value related to an injection amount of a pilot injection Pt based on whether the command value is on a delay side or an advance side of the range. COPYRIGHT: (C)2009,JPO&INPIT

Abstract translation: 要解决的问题：提供一种改善内燃机的燃烧特性的压燃式直喷发动机和发动机控制系统的燃烧控制装置，特别是与供给的主燃料的主要点火正时相关的燃烧特性 通过主注射。 解决方案：作为压燃式点火直喷发动机燃烧控制器，提供以下程序：检测主喷射Mn的点火正时（主点火正时）; 在检测值（定时t10）会聚在规定范围内（阈值TH11〜阈值TH12）的一侧的方向上校正主喷射执行定时的指令值; 确定校正的指令值是否在预定范围内（与判断值TH13相对应的范围）; 并且当确定所述命令值不在所述范围内时，基于所述命令值是否在所述范围的延迟侧或超前侧来校正与所述引导喷射Pt的喷射量相关的命令值。 版权所有（C）2009，JPO＆INPIT

公开(公告)号：JP2008169717A

公开(公告)日：2008-07-24

申请号：JP2007001975

申请日：2007-01-10

Applicant: Denso Corp ,  株式会社デンソー

Inventor： SASAKI SATORU ,  KURONITA TOKUSHI

IPC: F02D45/00 ,  F02D41/02 ,  F02D41/38 ,  F02D41/40 ,  F02M35/10

CPC classification number: F02D35/023 ,  F02D41/2451 ,  F02D41/403 ,  Y02T10/44

Abstract: PROBLEM TO BE SOLVED: To provide an engine control device which acquires a useful parameter for precisely realizing a desired combustion state while excellently maintaining emission and a fuel consumption rate, that is, a parameter of further precisely indicating a combustion characteristic in an object engine. SOLUTION: The control device (an engine control ECU) of an engine (an internal combustion engine) comprises a program (a step S25) for acquiring a combustion rate (an actual combustion rate R1) corresponding to the ratio of an ideal generating calorific value (a target generating calorific value Q2) expected from a supply quantity of fuel and an actual generating calorific value Q1 actually generated by its fuel. The combustion rate is also enhanced by controlling the pilot injecting timing (the parameter on the combustion rate) by a control quantity corresponding to the combustion rate (the actual combustion rate R1) acquired by the step S25. COPYRIGHT: (C)2008,JPO&INPIT

Abstract translation: 要解决的问题：提供一种发动机控制装置，其获得用于精确地实现期望的燃烧状态的有用参数，同时极好地保持排放和燃料消耗率，即进一步精确地指示燃烧特性的参数 对象引擎。 发动机（内燃机）的控制装置（发动机控制ECU）包括用于获取与理想值相对应的燃烧率（实际燃烧率R1）的程序（步骤S25） 从燃料的供给量产生的发热量（目标产生发热量Q2）和由其燃料实际产生的实际发热量Q1。 通过对与由步骤S25获取的燃烧率（实际燃烧率R1）相对应的控制量控制引燃喷射正时（燃烧率参数），也提高了燃烧率。 版权所有（C）2008，JPO＆INPIT

公开(公告)号：JP2007051624A

公开(公告)日：2007-03-01

申请号：JP2005239117

申请日：2005-08-19

Applicant: Denso Corp ,  株式会社デンソー

Inventor： SASAKI SATORU ,  KURONITA TOKUSHI ,  NAKAMURA KANEHITO

IPC: F02M61/18 ,  F02M51/06

CPC classification number: F02M61/182 ,  F02M61/1813

Abstract: PROBLEM TO BE SOLVED: To provide atomization of fuel and penetration of spray in a fuel injection nozzle.
SOLUTION: A group injection hole 6 is adopted to the fuel injection nozzle, injection hole diameter of the injection hole 7 is defined as D, crossing distance from an outlet of the injection hole 7 to a crossing point of a center axis of each injection hole 7 is defined as X and crossing angle of the center axis of each injection hole is defined as θ. Atomization of fuel can be obtained by setting injection hole diameter D to 0.05-0.1 mm. Penetration in an injection direction is lost by collision of sprays at obtuse angles under a condition of the crossing distance X 10°. Interference of sprays injected from each injection holes 7 becomes small under a condition of the crossing distance X>100D and the crossing angle θ

Abstract translation: 要解决的问题：提供燃料雾化和喷射在燃料喷嘴中的渗透。 解决方案：燃料喷射喷嘴采用组喷射孔6，喷射孔7的喷射孔直径定义为D，从喷射孔7的出口到中心轴线的交叉点的交叉点 每个喷射孔7被定义为X，并且每个喷射孔的中心轴线的交叉角度被定义为θ。 可以通过将喷射孔直径D设定为0.05-0.1mm来获得燃料雾化。 在交叉距离X <10D和交叉角θ> 10°的条件下，喷射方向的穿透会以钝角碰撞而损失。 在交叉距离X> 100D和交叉角θ<1°的条件下，从每个喷射孔7喷射的喷雾干扰变小。 交叉距离X = 10D〜100D，交叉角度θ= 1°〜10°的条件是雾化燃料冲击和渗透的最佳方式。 版权所有（C）2007，JPO＆INPIT

公开(公告)号：JP2005155603A

公开(公告)日：2005-06-16

申请号：JP2004247103

申请日：2004-08-26

Applicant: Denso Corp ,  株式会社デンソー

Inventor： SASAKI SATORU ,  KARIYA YASUHIRO ,  KUBOSHIMA TSUKASA ,  NAKAMURA KANEHITO ,  KINUGAWA MASUMI ,  KURONITA TOKUSHI

IPC: F02B23/06 ,  F02D1/00 ,  F02D35/02 ,  F02D41/00 ,  F02D41/04 ,  F02D41/38 ,  F02D43/00 ,  F02M25/07 ,  F02M49/00 ,  F02M61/18

CPC classification number: F02M61/182 ,  F02B29/0418 ,  F02D35/02 ,  F02D41/005 ,  F02M26/05 ,  F02M26/25 ,  Y02T10/47

Abstract: PROBLEM TO BE SOLVED: To provide an engine of a compression and ignition type having improved noise and fuel consumption while reducing exhaust emission. SOLUTION: Fuel is injected from a nozzle of an injector 11 at an almost constant injection rate in an atomized and easily evaporated form and passed through a cylinder atmosphere. The space distribution of the injected fuel is formed where fuel and air are mixed more as located farther from the nozzle to the direction of injection and a premixture region exists with the fuel premixed and evaporated. The concentration of oxygen in the cylinder of the internal combustion engine and the time length of an ignition delay are controlled so that the rate of a preignition injection amount before starting ignition to the total injection amount at one fuel injection is 25-50% and combustion occurs in the formed premixture region in sequence. Thus, gradual premixture combustion is achieved. COPYRIGHT: (C)2005,JPO&NCIPI

Abstract translation: 要解决的问题：提供一种具有改善的噪声和燃料消耗同时减少废气排放的压缩和点火式发动机。 解决方案：燃料以喷射速度几乎恒定的喷射器11喷射，雾化并易于蒸发，并通过汽缸气氛。 形成喷射燃料的空间分布，其中燃料和空气被更多地从喷嘴向喷射方向进行混合，并且存在燃料预混合和蒸发的预混合区域。 控制内燃机的气缸中的氧浓度和点火延迟的时间长度，使得在一次燃料喷射之前，点火开始前的预燃喷射量与总喷射量的比率为25-50％，燃烧 在形成的预混合区域中依次发生。 因此，实现了逐渐的预混燃烧。 版权所有（C）2005，JPO＆NCIPI

公开(公告)号：JP2004218612A

公开(公告)日：2004-08-05

申请号：JP2003009952

申请日：2003-01-17

Applicant: Denso Corp ,  株式会社デンソー

Inventor： SASAKI SATORU ,  KUBOSHIMA TSUKASA ,  SEKIGUCHI KIYONORI ,  KINUGAWA MASUMI

IPC: F02B3/10 ,  F02B3/12 ,  F02D21/08 ,  F02D41/02 ,  F02D41/38 ,  F02D41/40 ,  F02D45/00 ,  F02M25/07 ,  F02M45/02

Abstract: PROBLEM TO BE SOLVED: To provide a compression ignition type internal combustion engine wherein NOx, smoke, and combustion noise are simultaneously suppressed.
SOLUTION: When ECU 2 judges that the operation condition of an engine 1 is in a specific operation region, it controls so as to inject the fuel dividedly twice in one cycle (pre-injection and post-injection). After the pre-injection is finished, combustion of the pre-injection is started, after the combustion of the pre-injection is finished, post-injection is stared, and after the post-injection is finished, combustion of the post-injection is started. In the above combustion mode, after an air-fuel mixture, which has fully vaporized during the delayed ignition, is injected, a slow combustion is started. Consequently, NOx and smoke can be simultaneously suppressed. Besides, since the number of injection is divided twice, the combustion quantity at a time is restrained to suppress also the combustion noise.
COPYRIGHT: (C)2004,JPO&NCIPI

Abstract translation: 解决的问题：提供一种同时抑制NOx，烟雾和燃烧噪声的压燃式内燃机。 解决方案：当ECU2判定发动机1的运转状态处于特定运转区域时，控制为在一个循环（预喷射和后喷射）中分别喷射燃料两次。 在预喷射完成之后，预喷射的燃烧开始，在预喷射燃烧完成后，后喷射被凝视，并且在后喷射完成之后，后喷射的燃烧是 开始。 在上述燃烧模式中，在延迟点火期间完全蒸发的空气燃料混合物之后，开始缓慢燃烧。 因此，可以同时抑制NOx和烟雾。 此外，由于喷射次数分为两次，因此抑制了一次的燃烧量也抑制了燃烧噪声。 版权所有（C）2004，JPO＆NCIPI