公开(公告)号：US06898508B2

公开(公告)日：2005-05-24

申请号：US10741287

申请日：2003-12-18

Applicant: Futoshi Nakano ,  Akira Hirata ,  Koichiro Yomogida

Inventor： Futoshi Nakano ,  Akira Hirata ,  Koichiro Yomogida

IPC: F02D45/00 ,  F01N3/023 ,  F01N3/035 ,  F01N3/20 ,  F01N3/24 ,  F01N13/02 ,  F02D41/02 ,  F02D41/04 ,  F02D41/40 ,  G06F17/00

CPC classification number: F02D41/029 ,  F01N3/023 ,  F01N3/035 ,  F01N13/009 ,  F01N2430/085 ,  F02D41/1446 ,  F02D41/405 ,  F02D2041/1409 ,  Y02T10/44

Abstract: A fuel injection control device includes an after treatment device for purifying exhaust gas by the action of a catalyst, an exhaust gas temperature detector for detecting the exhaust gas temperature, and a controller for controlling the fuel injection quantity and fuel injection timing. The controller executes an exhaust gas temperature increase control by post-injection when the exhaust gas temperature detected by exhaust gas temperature detection means is less than the activity temperature of the catalyst in the after treatment device. When executing the exhaust gas temperature increase control, the controller determines the target injection quantity of post-injection based on the difference between the exhaust gas temperature considered as a target and the actual exhaust gas temperature detected by the exhaust gas temperature detector and also determines the upper limit value of injection quantity of post-injection based on the actual exhaust gas temperature detected by the exhaust gas temperature detector, conducts control such that the actual injection quantity of post-injection becomes the upper limit value when the target injection quantity is equal to the upper limit value or higher, and conducts control such that the actual injection quantity of post-injection becomes the target injection quantity when the target injection quantity is less than the upper limit value.

Abstract translation: 燃料喷射控制装置包括通过催化剂的作用净化废气的后处理装置，用于检测废气温度的排气温度检测器，以及用于控制燃料喷射量和燃料喷射正时的控制器。 当由废气温度检测装置检测的废气温度小于后处理装置中的催化剂的活性温度时，控制器通过后喷射执行废气升温控制。 当执行排气温度升高控制时，控制器基于被认为是目标的废气温度与由排气温度检测器检测出的实际废气温度之差来确定后喷射的目标喷射量， 基于由排气温度检测器检测出的实际废气温度的后喷射喷射量的上限值进行控制，使得喷射后的实际喷射量成为目标喷射量的上限值 上限值以上，并且进行控制，使得当目标喷射量小于上限值时，后喷射的实际喷射量成为目标喷射量。

公开(公告)号：US06840228B2

公开(公告)日：2005-01-11

申请号：US10725664

申请日：2003-12-02

Applicant: Koichiro Yomogida ,  Futoshi Nakano ,  Yusuke Saigo ,  Yuji Sasaki

Inventor： Koichiro Yomogida ,  Futoshi Nakano ,  Yusuke Saigo ,  Yuji Sasaki

IPC: F02M37/00 ,  F02D41/38 ,  F02M47/02 ,  F02M55/02 ,  F02M51/00

CPC classification number: F02D41/3836 ,  F02D41/3845 ,  F02D2041/1432 ,  F02D2200/0602 ,  F02D2250/04 ,  F02D2250/14

Abstract: The detected values of a common rail pressure that were detected by a pressure sensor are read within crank angle periods Δt which are at least not more than half of a pumping cycle ΔT of a supply pump, the values detected within one pumping cycle preceding a reading time (for example, S(1), S(0), . . . S(−4)) are averaged during each of the reading times, and the value thus obtained (for example, Pav(1)) is used as a common rail pressure after averaging processing, which is a representative value or a control value of the actual common rail pressure. The feedback control of common rail pressure is executed by using the values of common rail pressure after averaging processing thus computed by moving averaging. Consequently, the actual common rail pressure is converted into values suitable for control, and the feedback control of common rail pressure is executed with higher accuracy.

Abstract translation: 在压力传感器检测到的共轨压力的检测值在曲轴角度周期Deltat内被读取，曲柄角周期Deltat至少不超过供应泵的泵送周期DeltaT的一半，在读数之前的一个泵送循环中检测到的值 时间（例如，S（1），S（0），... S（-4））在每个读取时间期间被平均，并且将由此获得的值（例如，Pav（1））用作 平均处理之后的共轨压力，其是实际共轨压力的代表值或控制值。 通过使用通过移动平均计算的平均化处理后的共轨压力值来执行共轨压力的反馈控制。 因此，将实际共轨压力转换为适合于控制的值，并且以更高的精度执行共轨压力的反馈控制。

公开(公告)号：US06622702B2

公开(公告)日：2003-09-23

申请号：US09964105

申请日：2001-09-25

Applicant: Koichiro Yomogida ,  Kazutaka Ohishi

Inventor： Koichiro Yomogida ,  Kazutaka Ohishi

IPC: F02M4700

CPC classification number: F02M47/027 ,  F02D41/3809 ,  F02D2041/389 ,  F02D2200/0602 ,  F02M55/002 ,  F02M55/007 ,  F02M59/466 ,  F02M63/0225 ,  F02M2200/60

Abstract: When common rail pressure Pr is predetermined pressure Prai, which is low such that it is lower than the pressure for the initiation of fuel injection by the injectors (step 1), air-extraction pulse width Pwai, which is elected in accordance with a fixed value or the engine rotation speed (step 6), is elected as the final pulse width Pwf (step 7). Also, since air that is entrained with fuel is discharged at low pressure, along with fuel, from the pressure control chamber of the injectors, via a open/close valve, which opens based on pulse width Pwai, and via a discharge path, it is possible to avoid the effect, on the combustion characteristic, that arises due to the injection of entrained air, along with fuel, from nozzle holes into the combustion chamber.

Abstract translation: 当共轨压力Pr是预定压力Prai时，其低于喷射器的燃料喷射开始的压力（步骤1）的低压，抽气脉冲宽度Pwai根据固定的 值或发动机转速（步骤6）被选为最终脉冲宽度Pwf（步骤7）。 此外，由于与燃料夹带的空气与来自喷射器的压力控制室的低压以及燃料一起，经由基于脉冲宽度Pwai而开启的开闭阀，经由排出路径排出 可以避免由于夹带的空气以及燃料从喷嘴孔喷入燃烧室而产生的燃烧特性的影响。

公开(公告)号：US06934620B2

公开(公告)日：2005-08-23

申请号：US10764912

申请日：2004-01-26

Applicant: Futoshi Nakano ,  Akira Hirata ,  Koichiro Yomogida

Inventor： Futoshi Nakano ,  Akira Hirata ,  Koichiro Yomogida

IPC: F02D45/00 ,  B60K31/04 ,  F02D29/00 ,  F02D29/02 ,  F02D31/00 ,  F02D41/02 ,  F02D41/10 ,  F02D41/14 ,  B60K41/04

CPC classification number: B60K31/04 ,  B60W2520/105 ,  B60W2540/16 ,  B60W2710/0616 ,  B60W2720/106 ,  F02D31/009 ,  F02D41/0225 ,  F02D41/10 ,  F02D2200/501 ,  Y10T477/68

Abstract: A fuel injection quantity control device includes: vehicle speed detection unit; gear position detection unit; engine revolution speed detection unit; accelerator opening degree detection unit; target acceleration value computation unit for finding a basic target acceleration value corresponding to the difference between the set limit vehicle speed and an actual vehicle speed and an upper limit value and lower limit value of the basic target acceleration value for each gear position in a map, limiting the basic target acceleration value with the upper limit value and lower limit value, and determining a target acceleration value; basic fuel injection quantity for vehicle speed limit computation unit for determining a basic fuel injection quantity for vehicle speed limit by feedback computation from the difference between the determined target acceleration value and the actual acceleration value; an accelerator required injection quantity computation unit for computing an accelerator required injection quantity from the engine revolution speed and accelerator opening degree; and vehicle speed limit injection quantity computation unit for selecting the smaller of the basic fuel injection quantity for vehicle speed limit and accelerator required injection quantity and setting it as a fuel injection quantity for vehicle speed limit.

Abstract translation: 燃料喷射量控制装置包括：车速检测单元; 档位检测单元; 发动机转速检测单元; 加速器开度检测单元; 目标加速度值计算单元，用于求出对应于设定的极限车速与实际车速之间的差的基本目标加速度值以及地图中各档位的基本目标加速度值的上限值和下限值， 用上限值和下限值限制基本目标加速度值，确定目标加速度值; 用于根据所确定的目标加速度值和实际加速度值之间的差异，通过反馈计算确定车辆速度限制的基本燃料喷射量的车辆速度限制运算单元的基本燃料喷射量; 用于从发动机转速和加速器开度计算加速器所需喷射量的加速器所需喷射量计算单元; 以及车速极限喷射量计算单元，用于选择车辆速度限制和加速器所需喷射量的基本燃料喷射量的较小者，并将其设定为车辆速度限制的燃料喷射量。

公开(公告)号：US20050022792A1

公开(公告)日：2005-02-03

申请号：US10899900

申请日：2004-07-27

Applicant: Toshiaki Harunari ,  Koichiro Yomogida ,  Nobutaka Ishii ,  Kazuya Tomikawa ,  Futoshi Nakano

Inventor： Toshiaki Harunari ,  Koichiro Yomogida ,  Nobutaka Ishii ,  Kazuya Tomikawa ,  Futoshi Nakano

IPC: F02D9/02 ,  F02D11/10 ,  F02D21/08 ,  F02D41/00 ,  F02D41/02 ,  F02D43/00 ,  F02M25/07 ,  F02M51/00

CPC classification number: F02D41/005 ,  F02D11/105 ,  F02D41/10 ,  F02D2041/1432 ,  F02M26/02 ,  F02M26/05 ,  F02M26/22 ,  F02M26/49 ,  Y02T10/47

Abstract: An EGR control apparatus for a diesel engine which can stop EGR in advance of increase of a fuel injection quantity when acceleration of the engine comprises: EGR means (4) to adjust an EGR volume which is recirculated from an exhaust pipe (2) to an intake pipe (3); filter means (23) to carry out a smoothening-process to an accelerator opening degree detected by an accelerator opening degree sensor; injection quantity determination means (24) to determine a target fuel injection quantity to be injected from an injector (20), using the accelerator opening degree after smoothening-processed; and control means (25) to calculate a fuel injection quantity for judging EGR stop (Qcut), using the accelerator opening degree before smoothening-processed, to allow the EGR means (4) to carry out a decrease control for the EGR volume when the fuel injection quantity for judging EGR stop (Qcut) exceeds a predetermined threshold value (Hi).

Abstract translation: 一种用于柴油发动机的EGR控制装置，其在发动机的加速时可以在燃料喷射量增加之前停止EGR，其包括：EGR装置（4），其将从排气管（2）再循环的EGR容积调节到 进气管（3）; 过滤器装置（23），用于对由加速器开度传感器检测到的加速器开度进行平滑处理; 喷射量确定装置（24），用于使用平滑处理后的加速器开度来确定从喷射器（20）喷射的目标燃料喷射量; 以及控制装置（25），使用在平滑处理之前的加速器开度来计算用于判断EGR停止（Qcut）的燃料喷射量，以允许EGR装置（4）对EGR容积进行减小控制 用于判断EGR停止（Qcut）的燃料喷射量超过预定阈值（Hi）。

公开(公告)号：US06840220B2

公开(公告)日：2005-01-11

申请号：US10731351

申请日：2003-12-09

Applicant: Koichiro Yomogida ,  Futoshi Nakano ,  Yusuke Saigo ,  Yuji Sasaki

Inventor： Koichiro Yomogida ,  Futoshi Nakano ,  Yusuke Saigo ,  Yuji Sasaki

IPC: F02D41/04 ,  F02D41/30 ,  F02D41/38 ,  F02D45/00 ,  F02M47/00 ,  F02M51/00 ,  F02M59/34 ,  F02M59/46 ,  F02M41/00

CPC classification number: F02D41/3845 ,  F02D41/3809 ,  F02D2041/2027 ,  F02M59/34 ,  F02M59/466 ,  F02M63/004

Abstract: The common rail fuel injection control device in accordance with the present invention computes a base duty (A) equivalent to a base target opening degree of a metering valve and a correction coefficient (B) based on the engine operation state, adds the value obtained by multiplying an oscillation duty (C) which oscillates periodically by the correction coefficient (B) to the base duty (A), and determines the final duty (D) equivalent to a final target opening degree of the metering valve.

Abstract translation: 根据本发明的共轨燃料喷射控制装置基于发动机运转状态计算与计量阀的基本目标开度相等的基本负荷（A）和校正系数（B），将由 将周期性振荡校正系数（B）的振荡负荷（C）乘以基准负荷（A），并确定与计量阀的最终目标开度相当的最终占空比（D）。

公开(公告)号：US06786196B2

公开(公告)日：2004-09-07

申请号：US10757811

申请日：2004-01-15

Applicant: Futoshi Nakano ,  Koichiro Yomogida ,  Yuji Sasaki

Inventor： Futoshi Nakano ,  Koichiro Yomogida ,  Yuji Sasaki

IPC: F02M700

CPC classification number: F02D41/1402 ,  F02D31/007 ,  F02D2041/1409 ,  F02D2041/1422 ,  F02D2041/2048

Abstract: A fuel injection quantity control device for controlling an actual revolution speed En of an engine to a target revolution speed Eo, comprises difference computation unit for subtracting the actual revolution speed En from the target revolution speed Eo and finding the difference e therebetween; proportional term computation unit for multiplying the aforesaid difference e by the prescribed proportionality constant Kp and finding a proportional term output value Qp; integral term computation means for finding an integral term output value Qi which is obtained by integrating the product of the aforesaid difference e and the prescribed integration constant Ki; differential term computation unit for finding a differential term output value Qd which is obtained by multiplying the value obtained by differentiating the aforesaid difference e by the prescribed differentiation constant Kd; and injection quantity computation unit for adding up the proportional term output value Qp and the integral term output value Qi and determining the injection quantity.

Abstract translation: 用于将发动机的实际转速En控制为目标转速Eo的燃料喷射量控制装置包括：差分计算单元，用于从目标转速Eo中减去实际转速En，并求出其间的差e; 比例项计算单元，用于将上述差e乘以规定的比例常数Kp，并求出比例项输出值Qp; 积分项计算装置，用于求出通过将上述差值e的积与规定的积分常数Ki进行积分而得到的积分项输出值Qi; 差分项计算单元，用于找到通过将通过将上述差值e区分所得到的值乘以规定的微分常数Kd而获得的微分项输出值Qd; 以及喷射量计算单元，用于将比例项输出值Qp和积分项输出值Qi相加，并确定喷射量。

公开(公告)号：US06584953B2

公开(公告)日：2003-07-01

申请号：US09991240

申请日：2001-11-14

Applicant: Koichiro Yomogida

Inventor： Koichiro Yomogida

IPC: F02B310

CPC classification number: F02M63/0225 ,  F02B3/06 ,  F02D41/3836 ,  F02D41/403 ,  F02D2200/0602 ,  F02M45/08 ,  F02M47/027 ,  Y02T10/44

Abstract: This invention provides a common rail fuel injection device, which ensures the functions of pilot injection even at high fuel pressure in the common rails, by changing the injection end delay period of the pilot injection in accordance with the fuel pressure in the common rail. The period displacement &Dgr;SOCp to be applied to the pulse start time of the pilot injection command pulse CPp, with respect to the top dead centre T7, is set to a timing that is advanced by the interval period Tint, pilot injection end delay period Tdpe and injection pulse width Pwp for pilot injection, with respect to the main injection start time T6.

Abstract translation: 本发明提供一种共轨燃料喷射装置，其通过根据共轨中的燃料压力改变引燃喷射的喷射结束延迟时段，确保即使在共轨中的高燃料压力下的先导喷射的功能。 针对上止点T7将针对喷射指令脉冲CPp的脉冲开始时间施加的周期位移DELTASOCp设定为以间隔周期Tint，导频注入结束延迟期间Tdpe为前提的定时， 相对于主喷射开始时间T6，用于先导喷射的喷射脉冲宽度Pwp。