公开(公告)号：US5277156A

公开(公告)日：1994-01-11

申请号：US842544

申请日：1992-02-27

申请人： Isao Osuka ,  Toshimi Matsumura

发明人： Isao Osuka ,  Toshimi Matsumura

IPC分类号： F02D1/02 ,  F02B3/06 ,  F02D41/12 ,  F02D41/38 ,  F02M51/00 ,  F02M59/10 ,  F02M59/36 ,  F02M59/44 ,  F02M59/46 ,  F02M63/00 ,  F02M63/02 ,  F04B49/06 ,  F04B49/22 ,  F02B77/00 ,  F02M41/00

CPC分类号： F02D41/3845 ,  F02D41/123 ,  F02D41/3827 ,  F02M51/00 ,  F02M59/102 ,  F02M59/366 ,  F02M59/466 ,  F02M63/0225 ,  F04B49/065 ,  F04B49/225 ,  F02B3/06 ,  F02D2200/0602 ,  F02D2250/31 ,  F04B2203/0605

摘要： A common-rail fuel injection system for an engine includes a fuel injection device for injecting high pressure fuel from a common rail into the engine. A pumping chamber is connected to the common rail. A fuel feed device serves to feed fuel to the pumping chamber. A plunger moves upward and downward in accordance with rotation of an output shaft of the engine. The plunger defines a part of the pumping chamber. A relief valve serves to selectively return fuel from the pumping chamber to a low pressure side via a fuel return passage. The relief valve is urged toward its closed position by a pressure of the fuel in the pumping chamber. A valve closing device serves to close the relief valve. A fuel pumping control device serves to drive and control the valve closing device at a given timing to close the relief valve, thereby enabling a pressure in the pumping chamber to increase in accordance with upward movement of the plunger and pumping a given amount of fuel from the pumping chamber to the common rail. An engine speed detecting device serves to detect a rotational speed of the output shaft of the engine. In cases where an engine rotational speed detected by the engine speed detecting means is equal to or higher than a predetermined reference speed, a fuel feed suspending device serves to suspend fuel feed to the pumping chamber by the fuel feed means.

摘要翻译： 用于发动机的共轨燃料喷射系统包括用于将高压燃料从共轨注入发动机的燃料喷射装置。 泵送室连接到共轨。 燃料供给装置用于将燃料供给到泵送室。 柱塞根据发动机的输出轴的旋转而向上和向下移动。 柱塞限定了泵送室的一部分。 安全阀用于经由燃料返回通道选择性地将来自泵送室的燃料返回到低压侧。 溢流阀被泵送室中的燃料的压力推向其关闭位置。 阀关闭装置用于关闭溢流阀。 燃料泵送控制装置用于在给定的时间点驱动和控制关闭装置以关闭安全阀，从而使得泵送室中的压力可以根据柱塞的向上运动而增加，并将给定量的燃料从 泵室到共轨。 发动机转速检测装置用于检测发动机的输出轴的转速。 在由发动机转速检测装置检测到的发动机转速等于或高于预定参考速度的情况下，燃料供给悬挂装置用于通过燃料供给装置暂停向泵送室的燃料供给。

公开(公告)号：US4814997A

公开(公告)日：1989-03-21

申请号：US51168

申请日：1987-05-18

申请人： Toshimi Matsumura ,  Norio Omori ,  Hisanori Kobayashi

发明人： Toshimi Matsumura ,  Norio Omori ,  Hisanori Kobayashi

IPC分类号： F02D45/00 ,  F02D41/18 ,  F02D41/24 ,  F02D41/26 ,  F02P5/15 ,  F02D35/00

CPC分类号： F02D41/28 ,  F02D41/182 ,  F02D41/26 ,  F02P5/1502 ,  F02D2200/704 ,  Y02T10/46

摘要： A system for correcting for atmospheric pressure without using an atmospheric pressure sensor. A single pressure sensor measures air pressure in the intake manifold of a fuel injected engine. A control unit controls the fuel amount and injection timing in accordance with various engine parameters. The intake pressure at a predetermined time is estimated as being indicative of atmospheric pressure. This intake pressure may be further corrected to provide a better estimate. When the engine operates at a low speed and high load, this pressure data is also indicative of atmospheric pressure. The amount of fuel to be injected and the ignition timing can be controlled using this updated atmospheric data. This provides better operation of the system.

摘要翻译： 不使用大气压力传感器来校正大气压力的系统。 单个压力传感器测量燃油喷射发动机的进气歧管中的空气压力。 控制单元根据各种发动机参数来控制燃料量和喷射正时。 将预定时间的进气压力估计为指示大气压力。 可以进一步校正该进气压力以提供更好的估计。 当发动机以低速和高负载运行时，该压力数据也表示大气压力。 可以使用该更新的大气数据来控制要喷射的燃料量和点火正时。 这提供了更好的系统操作。

公开(公告)号：US4671236A

公开(公告)日：1987-06-09

申请号：US784311

申请日：1985-10-04

申请人： Toshimi Matsumura ,  Isao Osuka ,  Akira Masuda

发明人： Toshimi Matsumura ,  Isao Osuka ,  Akira Masuda

IPC分类号： F02B3/06 ,  F02D41/00 ,  F02D41/04 ,  F02D41/14 ,  F02D41/40 ,  F02M39/00

CPC分类号： F02D35/022 ,  F02D41/04 ,  F02D41/14 ,  F02D41/401 ,  F02B3/06 ,  F02D41/408 ,  Y02T10/44

摘要： In a diesel engine control system, an intake air density compensation system is provided for compensating the control amounts of a diesel engine in accordance with the variations of intake air density. The variation amount of the intake air density is indicated by the difference between the control input amount obtained in accordance with an ignition timing closed loop control and the control amount obtained in accordance with an ignition open loop control. The various control amounts of the diesel engine is compensated on the basis of the difference so that the diesel engine is ensured to be optimally operated irrespective of the variations of intake air density.

摘要翻译： 在柴油机控制系统中，提供进气密度补偿系统，用于根据进气密度的变化来补偿柴油发动机的控制量。 进气密度的变化量由根据点火正时闭环控制获得的控制输入量与根据点火开环控制获得的控制量之间的差表示。 基于差异来补偿柴油发动机的各种控制量，使得确保柴油发动机被最佳地操作，而与进气密度的变化无关。

公开(公告)号：US4590563A

公开(公告)日：1986-05-20

申请号：US427536

申请日：1982-09-29

申请人： Toshimi Matsumura ,  Norio Omori ,  Hisanori Kobayashi

发明人： Toshimi Matsumura ,  Norio Omori ,  Hisanori Kobayashi

IPC分类号： F02D45/00 ,  F02D41/18 ,  F02D41/24 ,  F02D41/26 ,  F02P5/15 ,  F02D35/00

CPC分类号： F02D41/28 ,  F02D41/182 ,  F02D41/26 ,  F02P5/1502 ,  F02D2200/704 ,  Y02T10/46

摘要： A single pressure sensor is provided to measure the air pressure in the intake manifold of a fuel injection engine. An electronic control unit having a microcomputer is provided to control the fuel amount and ignition timing in accordance with various engine parameters including the engine rotational speed and the intake pressure. The intake pressure is first measured before the engine is started so that the data of this pressure can be used as data indicative of atmospheric pressure. During operation of the engine, the pressure data may be used as normal intake pressure data. However, when the engine operates at a low speed and under high load, the pressure data is used as data indicative of the atmospheric pressure with slight correction. The amount of fuel to be injected and ignition timing thus controlled with updated data of atmospheric pressure, and therefore, undesirable phenomena, which are apt to occur when an engine is operated at a high altitude place, are effectively prevented, resulting in desired air/fuel ratio and ignition timing.

摘要翻译： 提供单个压力传感器来测量燃料喷射发动机的进气歧管中的空气压力。 具有微电脑的电子控制单元被设置为根据包括发动机转速和进气压力在内的各种发动机参数来控制燃料量和点火正时。 首先在发动机启动之前测量进气压力，使得该压力的数据可以用作指示大气压力的数据。 在发动机运转期间，压力数据可以用作正常的进气压力数据。 然而，当发动机在低速和高负载下运行时，压力数据被用作指示大气压力的数据，同时进行轻微的校正。 因此，通过更新的大气压数据，因此在发动机在高空位置运转时易于发生的不期望的现象，可以有效地防止要喷射的燃料量和点火时间，从而产生所需的空气/ 燃油比和点火正时。

公开(公告)号：US4495920A

公开(公告)日：1985-01-29

申请号：US482884

申请日：1983-04-07

申请人： Toshimi Matsumura ,  Masahiko Miyaki ,  Hitoshi Tomishima ,  Akira Masuda

发明人： Toshimi Matsumura ,  Masahiko Miyaki ,  Hitoshi Tomishima ,  Akira Masuda

IPC分类号： F02B1/04 ,  F02D41/00 ,  F02D41/14 ,  F02D41/34 ,  F02M41/12 ,  F02B3/00

CPC分类号： F02D41/1497 ,  F02D41/0085 ,  F02M41/125 ,  F02B1/04

摘要： In a fuel injection control system for multi-cylinder internal combustion engines, the speed of the engine is monitored and sampled at predetermined angular intervals of engine revolution to detect instantaneous engine speed values identifiable by individual cylinders. From the successively detected instantaneous speeds is derived an average value which is used as a reference for the instantaneous speed values to detect their deviations therefrom. Cylinder-to-cylinder variations in engine speed are minimized by metering the fuel according to the individually derived engine speed deviations.

摘要翻译： 在用于多缸内燃机的燃料喷射控制系统中，以发动机转速的预定角度间​​隔监测和采样发动机的速度，以检测由单个气缸可识别的瞬时发动机转速值。 从相继检测到的瞬时速度导出平均值，该平均值用作瞬时速度值的基准以便检测其偏离。 通过根据单独导出的发动机转速偏差计量燃料，使发动机转速的气缸到气缸的变化最小化。

公开(公告)号：US06539921B1

公开(公告)日：2003-04-01

申请号：US10284212

申请日：2002-10-31

申请人： Toshimi Matsumura

发明人： Toshimi Matsumura

IPC分类号： F02M3704

CPC分类号： F02D41/2474 ,  F02D41/062 ,  F02D41/2441 ,  F02D2200/0404 ,  F02D2200/0602 ,  F02D2200/0606 ,  F02D2200/704 ,  F02M63/0225

摘要： The ECU controls at least one component of a fuel injection system by outputting a control signal in accordance with a fuel pressure. The ECU is initially designed based on a basic pattern of an output characteristic of a common rail pressure sensor defined between a fuel pressure and an output signal. The output characteristic may vary in each sensor element. The ECU detects an output signal corresponding to an atmospheric pressure to determine and learn the actual output characteristic of the common rail sensor, and corrects a control characteristic for the component in accordance with the leaned actual output characteristic. For example, the ECU changes the output characteristic to the learned one. Control accuracy in a common rail fuel injection system can considerably be improved while achieving a considerable reduction in cost of fabricating the common rail pressure sensor.

摘要翻译： ECU通过根据燃料压力输出控制信号来控制燃料喷射系统的至少一个部件。 ECU首先基于在燃料压力和输出信号之间限定的共轨压力传感器的输出特性的基本模式来设计。 输出特性可能在每个传感器元件中变化。 ECU检测与大气压相对应的输出信号，以确定并学习共轨传感器的实际输出特性，并根据倾斜的实际输出特性来校正部件的控制特性。 例如，ECU将输出特性改变为所学习的特性。 在共轨燃料喷射系统中的控制精度可以显着提高，同时实现大幅降低制造共轨压力传感器的成本。

公开(公告)号：US4705000A

公开(公告)日：1987-11-10

申请号：US752732

申请日：1985-07-08

申请人： Toshimi Matsumura ,  Shinya Sumitani ,  Takahiro Hayakawa ,  Takashi Hasegawa ,  Shuji Sakakibara

发明人： Toshimi Matsumura ,  Shinya Sumitani ,  Takahiro Hayakawa ,  Takashi Hasegawa ,  Shuji Sakakibara

IPC分类号： F02D41/36 ,  F02B1/04 ,  F02D41/00 ,  F02D41/14 ,  F02D41/34 ,  F02D41/40 ,  F02M39/00

CPC分类号： F02D41/0085 ,  F02B1/04 ,  F02D2200/1015 ,  F02D41/1498

摘要： In a fuel amount control apparatus arranged to determine the amount of fuel to be fed to respective cylinders so that the scattering in torque generation throughout the cylinders is suppressed, the amount of correction which is either added to or subtracted from a basic fuel amount, is computed such that a sum total of fuel amount correction factors substantially equals zero. To this end the sum total of the correction factors is first computed and is then checked whether an absolute value of the sum total is greater than a predetermined value. When greater, a given amount is either added to or subtracted from correction factors respectively provided for respective cylinders.

摘要翻译： 在燃料量控制装置中，被配置为确定要供给到各个气缸的燃料量，从而抑制了在整个气缸中产生的转矩产生的散射，补充量或从基本燃料量中减去的校正量是 计算为使得燃料量校正因子的总和大致等于零。 为此，首先计算校正因子的总和，然后检查总和的绝对值是否大于预定值。 当更大时，给定量被添加到或分别被提供给各个气缸的校正因子中。

公开(公告)号：US4667634A

公开(公告)日：1987-05-26

申请号：US763989

申请日：1985-08-09

申请人： Toshimi Matsumura ,  Takashi Hasegawa ,  Takahiro Hayakawa ,  Shinya Sumitani ,  Shuji Sakakibara

发明人： Toshimi Matsumura ,  Takashi Hasegawa ,  Takahiro Hayakawa ,  Shinya Sumitani ,  Shuji Sakakibara

IPC分类号： F02D41/08 ,  F02B1/04 ,  F02D41/00 ,  F02D41/14 ,  F02D41/34 ,  F02D41/36 ,  F02D41/40

CPC分类号： F02D41/0085 ,  F02B1/04 ,  F02D2200/1015 ,  F02D41/1498

摘要： Fuel amount control apparatus arranged to determine the amount of fuel to be fed to respective cylinder so that the scattering in torque generation throughout the cylinders is suppressed. Correction amounts are first obtained during idling, and these correction amounts are then modified using at least one engine parameter so that they can be used not only in idle state but also other operating states. To this end, a correction factor is computed using engine speed or the like so as to modify the correction amounts thereby. As a result, a basic fuel amount is corrected by correction factors provided for respective cylinders where the correction factors are further modified to be suitable for any engine operating conditions, providing smooth rotation without uncomfortable vibrations.

摘要翻译： 燃料量控制装置，被配置为确定要供给到各个气缸的燃料量，从而抑制了整个气缸的转矩产生的散射。 首先在空转期间获得校正量，然后使用至少一个引擎参数修改这些校正量，使得它们不仅可以在空闲状态下使用，而且可以用于其他操作状态。 为此，使用发动机转速等来计算校正因子，从而修正校正量。 结果，通过为各个气缸提供校正因子来校正基本燃料量，其中校正因子被进一步修改以适合于任何发动机操作条件，提供平稳的旋转而没有不舒适的振动。

公开(公告)号：US4503821A

公开(公告)日：1985-03-12

申请号：US575385

申请日：1984-01-30

申请人： Masahiko Miyaki ,  Toshimi Matsumura ,  Akira Masuda ,  Sinya Sumitani ,  Takashi Hasegawa ,  Takahiro Hayakawa

发明人： Masahiko Miyaki ,  Toshimi Matsumura ,  Akira Masuda ,  Sinya Sumitani ,  Takashi Hasegawa ,  Takahiro Hayakawa

IPC分类号： F02B1/04 ,  F02D41/08 ,  F02D41/14 ,  F02D41/36 ,  F02D41/40 ,  F02D31/00

CPC分类号： F02D41/408 ,  F02D41/1498 ,  F02B1/04 ,  F02D2200/1015 ,  Y02T10/44

摘要： The engine speed is periodically detected at every predetermined crankshaft angles for obtaining a plurality of engine speed data whose number equals an integral multiple of the number of cylinders of an internal combustion engine. Either maximum or minimum values among the plurality of engine speed data is determined, and such operations are repeated for a duration covering all power strokes within all the cylinders, thereby obtaining a plurality of sets of engine speed data. Then the order of engine speed data giving the maximum or minimum value within each set is obtained, and majority decision is effected to determine which order of data gives the maximum or minimum most frequently throughout all the sets. The difference between the maximum and minimum values is obtained for each set, and the amount of fuel to be supplied to the engine is controlled so that the difference becomes common to all the cylinders. The fuel amount control may be effected by means of an actuator which controls the position of a spill ring of a distributor injection pump.

摘要翻译： 在每个预定的曲轴角度周期性地检测发动机速度，以获得数量等于内燃机的气缸数的整数倍的多个发动机转速数据。 确定多个发动机速度数据中的最大值或最小值，并且在覆盖所有气缸内的所有功率冲程的持续时间内重复这样的操作，从而获得多组发动机速度数据。 然后，获得给出每组中最大值或最小值的发动机速度数据的顺序，并且进行多数决定以确定在所有组中哪个数据顺序最大或最小频率最大或最小。 对于每组，获得最大值和最小值之间的差异，并且控制供应给发动机的燃料量，使得该差异对于所有气缸是共同的。 燃料量控制可以通过控制分配器喷射泵的溢流环的位置的致动器来实现。

公开(公告)号：US4475507A

公开(公告)日：1984-10-09

申请号：US514608

申请日：1983-07-18

申请人： Masahiko Miyaki ,  Akira Masuda ,  Toshimi Matsumura

发明人： Masahiko Miyaki ,  Akira Masuda ,  Toshimi Matsumura

IPC分类号： F02D41/40 ,  F02M41/12 ,  F02D1/04

CPC分类号： F02D41/408 ,  F02M41/125 ,  F02D2200/703 ,  Y02T10/44

摘要： In a fuel injection system having a fuel injection pump of distribution type with an electromagnetic valve controlling the communication between a spill port and a lower pressure fuel chamber, the closing duration of the electromagnetic valve is controlled by a computer so that the closing duration is defined as the sum of prestroke time and actual injection time which are both prestored in one or more memories. The actual injection time is controlled in accordance with engine operating condition, while the prestroke time may also be controlled by manually setting the same or by way of a feedback control. The sum, which defines the closing duration of the electromagnetic valve, may be limited by a maximum value, which may be manually adjustable, so as to prevent excessive fuel flow. The prestroke time may be uniformly controlled through all the cylinders or may be independently controlled for respective cylinders.

摘要翻译： 在具有分配型燃料喷射泵的燃料喷射系统中，电磁阀控制溢流口和低压燃料室之间的连通，电磁阀的关闭持续时间由计算机控制，使得关闭持续时间被定义 作为预先存储在一个或多个存储器中的预冲击时间和实际喷射时间的总和。 实际喷射时间是根据发动机运转状况进行控制的，而前冲程时间也可以通过手动设定相同的方式或通过反馈控制进行控制。 限定电磁阀关闭持续时间的总和可以限制在可以手动调节的最大值，以便防止燃料流过量。 预冲击时间可以通过所有气缸均匀地控制，或者可以独立地控制各个气缸。