公开(公告)号：US06659076B2

公开(公告)日：2003-12-09

申请号：US10013645

申请日：2001-12-07

申请人： Masahiko Kato

发明人： Masahiko Kato

IPC分类号： F02D4140

CPC分类号： F02B75/22 ,  F02B61/045 ,  F02B2075/025 ,  F02B2075/125 ,  F02B2075/1824 ,  F02D33/006 ,  F02D41/062 ,  F02D2041/389 ,  F02D2250/31 ,  F02D2400/04 ,  F02M31/20 ,  F02M37/007 ,  F02M37/0088 ,  F02M37/20 ,  Y02T10/123

摘要： A feed back control system and method for direct injected engines useful in a start up operation that utilizes a fuel pressure condition sensor. At the commencement of cranking, the feed back control system adjusts at least the initiation of fuel injection based upon the output from the fuel pressure condition sensor. This removes a great shift in the fuel pressure between before and after starting of the engine and eventually promotes operator's feeling and also improves exhaust emissions.

公开(公告)号：US06332452B1

公开(公告)日：2001-12-25

申请号：US09536939

申请日：2000-03-28

申请人： Martin Debusmann ,  Tobias Roulet

发明人： Martin Debusmann ,  Tobias Roulet

IPC分类号： F02D4140

CPC分类号： F02D41/22 ,  F02D11/107 ,  F02D41/3029 ,  F02D2200/1004 ,  F02D2250/26

摘要： The invention proposes a method for torque monitoring in the case of Otto engines in motor vehicles, in which a reference torque value (M0) is derived from the speed (n) of the Otto engine and the air mass (L) supplied and, in homogeneous lean operation (lambda=1 to 1.4), this reference torque value (M0) is corrected by a signal derived from a signal (&lgr;ist) from a lambda probe and is then compared with a torque value (Mmax) specified by the driver. Torque-reducing interventions in the control of the engine are performed if the corrected reference torque value (M0) exceeds the torque value (Mmax) specified by the driver by a specifiable factor or value. This method allows reliable and accurate torque monitoring, even at lambda values greater than 1.

摘要翻译： 本发明提出了一种在机动车辆中的Otto发动机的情况下的转矩监视方法，其中从Otto发动机的速度（n）和供给的空气质量（L）导出参考转矩值（M0），并且在 均匀的稀薄操作（λ= 1至1.4），该参考扭矩值（M0）由来自λ探针的信号（lambdist）导出的信号进行校正，然后与由驾驶员指定的扭矩值（Mmax）进行比较。 如果校正的参考转矩值（M0）超过驾驶员指定的可指定因子或值的转矩值（Mmax），则执行发动机控制中的转矩降低干预。 该方法允许可靠和精确的转矩监测，即使在λ值大于1的情况下也是如此。

公开(公告)号：US06516782B1

公开(公告)日：2003-02-11

申请号：US09321028

申请日：1999-05-27

申请人： Eric D. Thomas

发明人： Eric D. Thomas

IPC分类号： F02D4140

CPC分类号： F02D41/3836 ,  F02D41/3827 ,  F02D41/3845 ,  F02D41/403 ,  F02D2250/18 ,  Y02T10/44

摘要： A method for controlling fuel delivery from a fuel injector includes determining a first desired engine torque output; determining engine speed; determining a first quantity of fuel to be delivered by the fuel injector based on the first desired engine torque output and the engine speed; determining an injection pressure; and determining a first amount of time for energizing the fuel injector in order to deliver the first quantity of fuel based on the injection pressure. For a system capable of split injection, the method further includes determining a second desired engine torque output; determining a second quantity of fuel to be delivered by the fuel injector based on the second desired engine torque output and the engine speed; and determining a second amount of time for energizing the fuel injector in order to deliver the second quantity of fuel. The method and system of the invention provide more precise control of fuel delivery compared with prior systems and methods.

摘要翻译： 用于控制来自燃料喷射器的燃料输送的方法包括确定第一期望的发动机扭矩输出; 确定发动机转速; 基于所述第一期望的发动机转矩输出和所述发动机转速确定由所述燃料喷射器输送的第一燃料量; 确定注射压力; 以及确定用于激励所述燃料喷射器的第一时间量，以便基于所述喷射压力输送所述第一量的燃料。 对于能够分裂喷射的系统，该方法还包括确定第二期望的发动机扭矩输出; 基于所述第二期望的发动机扭矩输出和所述发动机转速来确定由所述燃料喷射器输送的第二量的燃料; 以及确定用于激励所述燃料喷射器以便传送所述第二量的燃料的第二时间量。 与现有系统和方法相比，本发明的方法和系统提供了对燃料输送的更精确的控制。

公开(公告)号：US06357417B2

公开(公告)日：2002-03-19

申请号：US09241718

申请日：1999-02-02

申请人： Masahiko Kato

发明人： Masahiko Kato

IPC分类号： F02D4140

CPC分类号： F02B75/22 ,  F02B61/045 ,  F02B2075/025 ,  F02B2075/125 ,  F02B2075/1824 ,  F02D33/006 ,  F02D41/062 ,  F02D2041/389 ,  F02D2250/31 ,  F02D2400/04 ,  F02M31/20 ,  F02M37/007 ,  F02M37/0088 ,  F02M37/20 ,  Y02T10/123

摘要： A feed back control system and method for direct injected engines useful in a start up operation that utilizes a fuel pressure condition sensor. At the commencement of cranking, the feed back control system adjusts at least the initiation of fuel injection based upon the output from the fuel pressure condition sensor. This removes a great shift in the fuel pressure between before and after starting of the engine and eventually promotes operator's feeling and also improves exhaust emissions.

摘要翻译： 一种用于直接喷射发动机的反馈控制系统和方法，其用于利用燃料压力条件传感器的启动操作。 在起动开始时，反馈控制系统至少基于来自燃料压力条件传感器的输出来调节燃料喷射的启动。 这消除了发动机起动前后的燃料压力的巨大变化，并且最终促进操作者的感觉并且还改善废气排放。

公开(公告)号：US06732715B2

公开(公告)日：2004-05-11

申请号：US10079660

申请日：2002-02-20

申请人： Abdolreza Fallahi ,  Martin A P Sykes

发明人： Abdolreza Fallahi ,  Martin A P Sykes

IPC分类号： F02D4140

CPC分类号： F02D41/402 ,  F02B3/06 ,  F02D41/20 ,  F02D41/3836 ,  F02D2041/2055 ,  F02D2200/0602 ,  Y02T10/44

摘要： A control method for controlling the timing of fuel injection in a fuelling system for an engine comprising a fuel injector supplied with fuel from a source of fuel at high pressure, comprises varying a drive current which is supplied to the fuel injector at a first time so as to initiate or terminate a primary injection of fuel and monitoring the pressure of fuel within the source so as to detect when a variation in fuel pressure occurs. A time delay is measured, which represents the difference in time between the first time and a second, later time at which a variation in fuel pressure within the source is detected.

摘要翻译： 一种用于控制用于发动机的燃料供给系统中的燃料喷射正时的控制方法，包括从高压燃料源供给燃料的燃料喷射器，包括在第一时间改变供给燃料喷射器的驱动电流， 以便启动或终止燃料的初次注入并监测源内燃料的压力，以便检测何时发生燃料压力的变化。 测量时间延迟，其表示在检测到源内燃料压力变化的第一时间和第二时间之间的时间差。

公开(公告)号：US06463906B2

公开(公告)日：2002-10-15

申请号：US09816238

申请日：2001-03-26

申请人： Ken Ogawa ,  Isao Komoriya ,  Kazuhiro Ueda

发明人： Ken Ogawa ,  Isao Komoriya ,  Kazuhiro Ueda

IPC分类号： F02D4140

CPC分类号： F02D41/005 ,  F02B17/005 ,  F02D9/04 ,  F02D41/047 ,  F02D41/3029 ,  F02D41/401 ,  F02D2041/389 ,  F02D2200/0602 ,  F02M26/48 ,  Y02T10/44 ,  Y02T10/47

摘要： There is disclosed a fuel injection control system for an internal combustion engine, which is capable of properly determining fuel injection timing such that the fuel injection timing reflects behaviors of injected fuel, thereby improving drivability and fuel economy. The internal combustion engine of an in-cylinder fuel injection type is operated while switching between a stratified combustion mode in which fuel injection into each cylinder is performed during a compression stroke and a homogenous combustion mode in which the fuel injection into the cylinder is performed during an intake stroke. The fuel injection control system controls fuel injection timing. A required fuel injection time is determined based on detected operating conditions of the engine. A direct ratio and a carry-off ratio are determined based on the operating conditions of the engine. The required fuel injection time is corrected by using the direct ratio and the carry-off ratio, whereby a final fuel injection time period is determined. Based on the engine rotational speed and the final fuel injection time period, the fuel injection timing is determined.

摘要翻译： 公开了一种用于内燃机的燃料喷射控制系统，其能够适当地确定燃料喷射正时，使得燃料喷射正时反映喷射燃料的行为，从而提高驾驶性能和燃料经济性。 缸内燃料喷射型内燃机在压缩冲程期间在其中进行到每个气缸中的燃料喷射的分层燃烧模式和在气缸内的燃料喷射进入气缸的均匀燃烧模式之间切换时进行操作 进气冲程。 燃料喷射控制系统控制燃料喷射正时。 基于检测到的发动机的运行条件来确定所需的燃料喷射时间。 根据发动机的运行条件确定直接比例和起飞比。 所需的燃料喷射时间通过使用直接比率和起飞比来校正，由此确定最终燃料喷射时间段。 基于发动机转速和最终燃料喷射时间段，确定燃料喷射正时。

公开(公告)号：US06397821B1

公开(公告)日：2002-06-04

申请号：US09635182

申请日：2000-08-07

申请人： Thomas Spägele ,  Armin Dölker

发明人： Thomas Spägele ,  Armin Dölker

IPC分类号： F02D4140

CPC分类号： F02D41/401 ,  F02B3/06 ,  F02D31/007 ,  F02D41/3827 ,  F02D41/3845 ,  F02D2041/1432 ,  F02D2250/31 ,  Y02T10/44

摘要： For an internal combustion engine serving as a ship's propulsion unit or a generator drive, it is proposed, in operation within the range of the nominal output point, with the occurrence of a significant load change on the power take-off, to shift the injection start toward late. A significant load change on the power take-off is to be understood as the broaching of the ship's propulsion unit or the load rejection in generator operation. The shift of the injection start toward late provides the advantage that the speed control is additionally supported.

摘要翻译： 对于用作船舶推进单元或发电机驱动器的内燃机，在额定输出点的范围内的运行中，建议在动力输出时发生显着的负载变化，以使喷射 开始迟到 动力输出的重大负荷变化应理解为船舶推进装置的拉削或发电机运行中的负载抑制。 注射开始向后移动提供了另外支持速度控制的优点。

公开(公告)号：US06513320B1

公开(公告)日：2003-02-04

申请号：US09199448

申请日：1998-11-25

申请人： Hirofumi Nishimura ,  Youichi Kuji

发明人： Hirofumi Nishimura ,  Youichi Kuji

IPC分类号： F02D4140

CPC分类号： F02D41/402 ,  F01N3/0842 ,  F02D35/0092 ,  F02D41/0057 ,  F02D41/0235 ,  F02D2041/389 ,  F02D2200/0804 ,  Y02T10/148 ,  Y02T10/44

摘要： An engine control system for a direct injection-spark ignition type of engine which is equipped with a fuel injector for spraying fuel directly into a combustion chamber and an exhaust system having a lean NOx conversion catalyst for lowering an emission level of nitrogen oxides (NOx) in exhaust gas at an air-fuel ratio of &lgr;>1 controls divides a given amount of fuel into two parts which are intermittently delivered through early and late split injection respectively in a intake stroke and controls a fuel injector such that a midpoint between points at which the early and late split injection are timed respectively to start is before a midpoint of a intake stroke while the engine is in a lean fuel charge zone.

摘要翻译： 一种用于直喷式火花点火式发动机的发动机控制系统，其配备有用于将燃料直接喷射到燃烧室中的燃料喷射器和具有用于降低氮氧化物（NOx）的排放水平的贫NOx转化催化剂的排气系统， 在空气燃料比为lambd> 1的排气中，将给定量的燃料分成两部分，这两部分在进气冲程中分别通过早期和后期分离喷射间歇地输送，并控制燃料喷射器，使得在 早期和晚期分离喷射分别定时启动在进气冲程的中点之前，而发动机处于贫燃料装料区域。

公开(公告)号：US06334425B1

公开(公告)日：2002-01-01

申请号：US09559742

申请日：2000-04-27

申请人： Shuji Nagatani ,  Masahiro Sato ,  Minoru Torii

发明人： Shuji Nagatani ,  Masahiro Sato ,  Minoru Torii

IPC分类号： F02D4140

CPC分类号： F02D41/3818 ,  F02D41/0065 ,  F02D41/1456 ,  F02D41/3029 ,  F02D2200/0411

摘要： An air/fuel ratio control system for a direct injection spark ignition internal combustion engine which is operated at an ultra-lean burn combustion or at a pre-mixture charged combustion. In the system, a charging efficiency correction coefficient for adjusting a charging efficiency of intake air is determined based at least on the determined desired air/fuel ratio and the form of combustion, and the desired air/fuel ratio is corrected by the coefficient. Then, the output fuel injection amount is determined based at least on the basic fuel injection amount and the corrected desired air/fuel ratio (desired air/fuel ratio correction coefficient). The charging efficiency correction coefficient is determined to be a less value when the engine is operated at the ultra-lean burn combustion than that when the engine is operated at the pre-mixture charged combustion. The coefficient is made different whether or not the operation of EGR is progress. With this, the desired air/fuel ratio is determined adequately and hence, the fuel injection amount can be determined adequately.

摘要翻译： 一种用于直喷式火花点火内燃机的空燃比控制系统，其在超稀燃燃烧或预混燃料燃烧下运行。 在该系统中，至少基于所确定的所需空燃比和燃烧形式来确定用于调节进气的充气效率的充气效率校正系数，并且通过系数校正所需的空燃比。 然后，至少基于燃料喷射量和校正后的所需空燃比（所需空燃比校正系数）来确定输出燃料喷射量。 当发动机在超稀燃烧燃烧下操作时，充电效率校正系数被确定为比在发动机在预混燃料燃烧时操作时更小的值。 无论EGR的运行是否进行，系数都是不同的。 由此，充分确定所需的空气/燃料比，因此可以适当地确定燃料喷射量。

公开(公告)号：US06302083B1

公开(公告)日：2001-10-16

申请号：US09677562

申请日：2000-10-02

申请人： Andreas Kärcher ,  Achim Przymusinski ,  Ralf Schernewski

发明人： Andreas Kärcher ,  Achim Przymusinski ,  Ralf Schernewski

IPC分类号： F02D4140

CPC分类号： F02D41/1498 ,  F02D2200/1015

摘要： The values for the speed of the crankshaft are corrected by means of an acausal mean-value filter, and the change in the kinetic energy of the crankshaft in the expansion interval of a cylinder is calculated from the dynamically corrected speed values and referred to the maximum fuel quantity which can be fed in this interval. The dimensionless residue obtained therefrom represents for the cylinder under consideration a measure of too much or too little injected fuel. Correction terms are derived from the calculated residues for the injection times of the individual cylinders. This renders adaptation possible in the overall region of the characteristic diagram, in particular also in the case of speed transitions.

摘要翻译： 曲轴的速度值通过绝对平均值滤波器进行校正，并且根据动态校正的速度值计算曲轴在气缸膨胀间隔中的动能的变化，并且被称为最大值 可以在该间隔内供给的燃料量。 由此获得的无量纲残余物表示考虑到的气缸的喷射燃料太多或太少的量度。 修正术语来自各个气缸的注射时间的计算残差。 这使得可以在特性图的整个区域中实现适配，特别是在速度转换的情况下。