公开(公告)号：US4603669A

公开(公告)日：1986-08-05

申请号：US688995

申请日：1985-01-04

申请人： Eiji Takemoto ,  Masahiko Miyaki ,  Hideaki Norimatsu ,  Nobuhito Hobo ,  Yoshihiko Tsuzuki ,  Yoshimune Konishi

发明人： Eiji Takemoto ,  Masahiko Miyaki ,  Hideaki Norimatsu ,  Nobuhito Hobo ,  Yoshihiko Tsuzuki ,  Yoshimune Konishi

IPC分类号： F02B3/06 ,  F02D41/00 ,  F02D41/02 ,  F02D41/04 ,  F02D41/14 ,  F02D41/20 ,  F02D41/38 ,  F02D41/40 ,  F02D45/00 ,  F02B3/00

CPC分类号： F02D41/02 ,  F02D41/14 ,  F02D41/38 ,  F02D41/401 ,  F02B3/06 ,  F02D2200/0406 ,  F02D41/408 ,  Y02T10/44

摘要： A fuel injection pump is described wherein a plunger is rotatingly and reciprocally movable in an enclosure to define a compression chamber which is connected to a fuel inlet during an intake stroke of the plunger and to a fuel outlet during a compression stroke thereby to initiate injection of fuel to the outlet. A solenoid valve is responsive to a voltage applied from a voltage source for providing a pressure relief action on the fuel in the compression chamber. A control unit is responsive to the onset of fuel injection to determine a basic timing at which fuel is to be terminated and corrects the basic timing as a function of the source voltage to compensate for a voltage variation thereof which would otherwise affect on the operation of the solenoid valve. The solenoid valve is then energized at the corrected timing.

摘要翻译： 描述了一种燃料喷射泵，其中柱塞在外壳中旋转和往复运动以限定压缩室，该压缩室在柱塞的进气冲程期间连接到燃料入口并且在压缩冲程期间连接到燃料出口，从而启动喷射 燃料到出口。 电磁阀响应于从电压源施加的电压，以对压缩室中的燃料提供压力释放作用。 控制单元响应于燃料喷射的开始以确定要终止燃料的基本定时，并且将基准时间作为源电压的函数进行校正，以补偿其电压变化，否则将影响其运行 电磁阀。 然后在校正的时间点对电磁阀通电。

公开(公告)号：US07660661B2

公开(公告)日：2010-02-09

申请号：US11599397

申请日：2006-11-15

申请人： Masahiro Asano ,  Eiji Takemoto

发明人： Masahiro Asano ,  Eiji Takemoto

IPC分类号： G06F19/00 ,  F02M7/00 ,  G05D1/00

CPC分类号： F02D41/1498 ,  F02D41/0007 ,  F02D41/009 ,  F02D41/0215 ,  F02D41/2422 ,  F02D41/2441 ,  F02D41/2467 ,  F02D41/247 ,  F02D2200/023

摘要： A fuel injection control device is disclosed that includes a fuel injection valve for performing a fuel injection event at an assumed fuel quantity. The device also includes a rotation detecting device for detecting a change in rotation amount of the output shaft. The device further includes a slip rate detection device for detecting a slip rate between the output shaft and the driven shaft. Also included is an actual fuel injection amount estimating device for estimating an actual fuel injection quantity during the fuel injection event based on the detected change in rotation and the detected slip rate. The device also includes a learning device for learning a deviation based on the difference between the estimated actual fuel injection quantity and the assumed fuel injection quantity. A related method is also disclosed.

摘要翻译： 公开了一种燃料喷射控制装置，其包括用于以假定燃料量执行燃料喷射事件的燃料喷射阀。 该装置还包括用于检测输出轴的旋转量的变化的旋转检测装置。 该装置还包括用于检测输出轴和从动轴之间的滑移率的滑差检测装置。 还包括实际燃料喷射量估计装置，用于基于检测到的旋转变化和检测到的滑移率来估计燃料喷射事件期间的实际燃料喷射量。 该装置还包括用于基于估计的实际燃料喷射量和假定燃料喷射量之间的差来学习偏差的学习装置。 还公开了相关方法。

公开(公告)号：US07596992B2

公开(公告)日：2009-10-06

申请号：US12174183

申请日：2008-07-16

申请人： Masahiro Asano ,  Eiji Takemoto ,  Yuuki Tarusawa

发明人： Masahiro Asano ,  Eiji Takemoto ,  Yuuki Tarusawa

IPC分类号： G01M15/00 ,  F02D41/30

CPC分类号： F02D41/2467 ,  F02D41/0087 ,  F02D41/123 ,  F02D41/1497 ,  F02D41/2438

摘要： A fuel injection control apparatus for an internal combustion engine is provided. A controller directs a fuel injector to spray a learning injection quantity of fuel and determines a resulting increase in speed of the engine. The controller determines the quantity of the fuel actually sprayed from the fuel injector based on the increase in speed of the engine and calculates a correction factor which compensates for a difference between the learning injection quantity and the actual injection quantity. The controller also determines a variation in load acting on a driving member of a torque transmission mechanism. When such a variation is great undesirably, the controller stops spraying the learning injection quantity. The controller may determine the increase in speed of the engine based on the degree of the variation in load. This ensures the accuracy in calculating the correction factor regardless of the variation in load.

摘要翻译： 提供一种用于内燃机的燃料喷射控制装置。 控制器引导燃料喷射器喷射学习喷射量的燃料并且确定所引起的发动机速度的增加。 控制器基于发动机的速度的增加来确定从燃料喷射器实际喷射的燃料的量，并计算补偿学习喷射量与实际喷射量之间的差的校正系数。 控制器还确定作用在转矩传递机构的驱动构件上的载荷的变化。 当这种变化非常大时，控制器停止喷射学习喷射量。 控制器可以基于负载变化的程度来确定发动机的速度的增加。 这确保了计算校正系数的准确性，而不管负载的变化如何。

公开(公告)号：US20080006244A1

公开(公告)日：2008-01-10

申请号：US11822050

申请日：2007-07-02

申请人： Masahiro Asano ,  Eiji Takemoto

发明人： Masahiro Asano ,  Eiji Takemoto

IPC分类号： F02D41/30

CPC分类号： F02D41/2438 ,  F02D41/045 ,  F02D41/1497 ,  F02D41/2467 ,  F02D41/2483 ,  F02D41/40 ,  F02D41/403 ,  Y02T10/44

摘要： A fuel injection controller calculates a difference between a rotation speed fluctuation amount of an engine in the case where an injection for learning is performed and the rotation speed fluctuation amount in the case where the injection for the learning is not performed as a rotation speed increase amount. The controller calculates an actual injection amount actually injected from an injector based on a rotation state of the engine. The controller calculates a difference between the actual injection amount and a command injection amount outputted to the injector as a characteristic deviation and corrects the command injection amount to reduce the characteristic deviation. The controller prohibits the correction of the command injection amount when a variation in the rotation speed increase amount is equal to or greater than a specified value.

摘要翻译： 燃料喷射控制器计算在进行用于学习的喷射的情况下的发动机的转速波动量与不进行学习的喷射的情况下的转速波动量之间的差作为转速增加量 。 控制器基于发动机的旋转状态计算从喷射器实际喷射的实际喷射量。 控制器计算实际喷射量与输出到喷射器的指示喷射量之差作为特性偏差，并且校正指示喷射量以减小特性偏差。 当转速增加量的变化等于或大于指定值时，控制器禁止指令喷射量的校正。

公开(公告)号：US07198039B2

公开(公告)日：2007-04-03

申请号：US11330118

申请日：2006-01-12

申请人： Eiji Takemoto ,  Masato Katsuno ,  Tatsuya Fujita ,  Kunio Nanba ,  Yoshinori Nakayama

发明人： Eiji Takemoto ,  Masato Katsuno ,  Tatsuya Fujita ,  Kunio Nanba ,  Yoshinori Nakayama

IPC分类号： F02B47/08 ,  F02M25/07

CPC分类号： F02D41/0055 ,  F02D11/10 ,  F02M26/49 ,  F02M26/50 ,  Y02T10/47

摘要： A valve control device corrects a change rate of an opening degree of a valve in accordance with engine rotation speed when deposit elimination operation is performed. The valve control device corrects an inclination between a positive maximum opening degree and a negative maximum opening degree of the valve in accordance with the engine rotation speed when the deposit elimination operation is performed. Thus, when the engine rotation speed is low and a noise accompanying the deposit elimination operation becomes more audible, the change rate of the opening degree of the valve is reduced. As a result, the noise accompanying the deposit elimination operation is reduced and annoyance for vehicle occupants is reduced.

摘要翻译： 阀门控制装置根据执行沉积物消除操作时的发动机转速来校正阀的开度的变化率。 当执行沉积物消除操作时，阀控制装置根据发动机转速校正阀的正最大开度和负最大开度之间的倾斜度。 因此，当发动机转速低并且随着沉积物消除操作的噪声变得更可听见时，阀的开度的变化率降低。 结果，伴随着沉积物消除操作的噪音减少，车辆乘客的烦恼减少。

公开(公告)号：US07179197B2

公开(公告)日：2007-02-20

申请号：US11008738

申请日：2004-12-10

申请人： Masahiro Asano ,  Eiji Takemoto

发明人： Masahiro Asano ,  Eiji Takemoto

IPC分类号： B60W10/02

CPC分类号： B60W30/18 ,  B60W10/02 ,  B60W10/06 ,  B60W2510/0208 ,  B60W2510/0638 ,  B60W2510/0652 ,  B60W2510/0685 ,  B60W2520/105 ,  B60W2540/12 ,  B60W2550/142 ,  B60W2710/0616 ,  F16D48/06 ,  F16D2500/10412 ,  F16D2500/1062 ,  F16D2500/30401 ,  F16D2500/3068 ,  F16D2500/3127 ,  F16D2500/31426 ,  F16D2500/3144 ,  F16D2500/70424 ,  F16D2500/70452 ,  F16D2500/7105 ,  Y10T477/6403 ,  Y10T477/6418 ,  Y10T477/70 ,  Y10T477/757 ,  Y10T477/79

摘要： If a user presses a clutch pedal to perform gear-shifting operation while a vehicle is traveling, a clutch disc, which has been engaged with a flywheel rotating with an engine, is brought to partial clutch engagement and slides on an end surface of the flywheel to generate friction. Thus, a first phenomenon in which a decreasing rate of the engine rotation speed rapidly increases occurs. Then, a second phenomenon in which the clutch disc is completely disengaged from the flywheel to eliminate the friction and the decreasing rate of the engine rotation speed returns to an original state occurs. If the first and second phenomena are detected successively when neither an engine side nor a power transmission system side transmits power for varying an engine rotation speed, it is determined that the clutch disc is disengaged.

摘要翻译： 如果用户在车辆行驶时按下离合器踏板进行变速操作，则已经与与发动机一起旋转的飞轮接合的离合器盘被带到部分离合器接合并在飞轮的端面上滑动 产生摩擦。 因此，发生发动机转速的下降速度快速增加的第一现象。 然后，发生离合器盘与飞轮完全脱离以消除摩擦并且发动机转速降低的返回到原始状态的第二现象。 如果当发动机侧和动力传递系统侧都不发送用于改变发动机转速的动力时连续检测到第一和第二现象，则确定离合器盘脱离。

公开(公告)号：US07032582B2

公开(公告)日：2006-04-25

申请号：US10980807

申请日：2004-11-04

申请人： Masahiro Asano ,  Eiji Takemoto

发明人： Masahiro Asano ,  Eiji Takemoto

IPC分类号： F02D41/00

CPC分类号： F02D41/2438 ,  F02D41/0097 ,  F02D41/1498 ,  F02D41/2441 ,  F02D41/2467 ,  F02D2200/1012 ,  F02D2250/28

摘要： An electronic control unit (ECU) of an injection control system of an internal combustion engine measures an engine rotation speed in a period from a time point when an exhaust valve opens to a time point when a top dead center of a next cylinder is detected after a single injection is performed. The ECU calculates a rotation speed fluctuation caused by the single injection based on the engine rotation speed. The engine rotation speed provided immediately after the single injection is measured after a cylinder pressure increased by the single injection decreases to substantially the same level as the cylinder pressure provided in the case where the single injection is not performed. Therefore, the rotation speed fluctuation corresponding to torque generated by the single injection can be measured accurately.

摘要翻译： 内燃机的喷射控制系统的电子控制单元（ECU）在从排气门打开的时刻到下一个气缸的上止点的时间点到下一个气缸的上止点之间的时间段内测量发动机转速， 执行单次注射。 ECU根据发动机转速计算单次喷射引起的转速波动。 在单次喷射之后立即提供的发动机转速在通过单次喷射增加的气缸压力降低到与不进行单次喷射的情况下提供的气缸压力基本相同的水平时测量。 因此，可以精确地测量与单次喷射产生的转矩对应的转速波动。

公开(公告)号：US06907861B2

公开(公告)日：2005-06-21

申请号：US10866254

申请日：2004-06-14

申请人： Masahiro Asano ,  Yoshihiro Narahara ,  Eiji Takemoto

发明人： Masahiro Asano ,  Yoshihiro Narahara ,  Eiji Takemoto

IPC分类号： F02D45/00 ,  F02D41/12 ,  F02D41/14 ,  F02D41/24 ,  F02D41/38 ,  F02D41/40 ,  F02D43/00 ,  F02D7/00

CPC分类号： F02D41/123 ,  F02D41/1497 ,  F02D41/2438 ,  F02D41/2467 ,  F02D41/403 ,  Y02T10/44

摘要： A fuel injection control device of a diesel engine performs a learning injection during a no-injection period, in which a command injection quantity is zero or under. A difference between a variation in the engine rotation speed in the case where the learning injection is performed and a variation in the engine rotation speed in the case where the learning injection is not performed is calculated as a rotation speed increase. A torque proportional quantity is calculated by multiplying the rotation speed increase by the engine rotation speed at the time when the learning injection is performed. An injection correction value is calculated from a deviation between the actual injection quantity, which is estimated from the torque proportional quantity, and the command injection quantity. The command injection quantity is corrected based on the injection correction value.

摘要翻译： 柴油机的燃料喷射控制装置在指令喷射量为零以下的非喷射期间进行学习喷射。 计算在进行学习喷射的情况下的发动机转速的变化与不进行学习喷射的情况下的发动机转速的变化的差异作为转速的增加。 通过在进行学习注入时将转速增加乘以发动机转速来计算转矩比例量。 根据从扭矩比例量估计的实际喷射量与指示喷射量之间的偏差来计算喷射修正值。 基于喷射校正值校正指示喷射量。

公开(公告)号：US20050092300A1

公开(公告)日：2005-05-05

申请号：US10980807

申请日：2004-11-04

申请人： Masahiro Asano ,  Eiji Takemoto

发明人： Masahiro Asano ,  Eiji Takemoto

IPC分类号： F02D45/00 ,  F02D41/14 ,  F02D41/24 ,  F02D41/34 ,  F02D41/38 ,  F02M51/00

CPC分类号： F02D41/2438 ,  F02D41/0097 ,  F02D41/1498 ,  F02D41/2441 ,  F02D41/2467 ,  F02D2200/1012 ,  F02D2250/28

摘要： An electronic control unit (ECU) of an injection control system of an internal combustion engine measures an engine rotation speed in a period from a time point when an exhaust valve opens to a time point when a top dead center of a next cylinder is detected after a single injection is performed. The ECU calculates a rotation speed fluctuation caused by the single injection based on the engine rotation speed. The engine rotation speed provided immediately after the single injection is measured after a cylinder pressure increased by the single injection decreases to substantially the same level as the cylinder pressure provided in the case where the single injection is not performed. Therefore, the rotation speed fluctuation corresponding to torque generated by the single injection can be measured accurately.

摘要翻译： 内燃机的喷射控制系统的电子控制单元（ECU）在从排气门打开的时刻到下一个气缸的上止点的时间点到下一个气缸的上止点之间的时间段内测量发动机转速， 执行单次注射。 ECU根据发动机转速计算单次喷射引起的转速波动。 在单次喷射之后立即提供的发动机转速在通过单次喷射增加的气缸压力降低到与不进行单次喷射的情况下提供的气缸压力基本相同的水平时测量。 因此，可以精确地测量与单次喷射产生的转矩对应的转速波动。

公开(公告)号：US20050022793A1

公开(公告)日：2005-02-03

申请号：US10643088

申请日：2003-08-19

申请人： Eiji Takemoto

发明人： Eiji Takemoto

IPC分类号： F02M47/00 ,  F02B3/06 ,  F02D41/04 ,  F02D41/20 ,  F02D41/38 ,  F02D41/40 ,  F02M47/02 ,  F02M51/06 ,  F02M59/46 ,  F02M63/02 ,  F02D41/30

CPC分类号： F02D41/2096 ,  F02B3/06 ,  F02D41/3809 ,  F02D41/3836 ,  F02D2041/2051 ,  F02D2041/389 ,  F02D2200/0602 ,  F02M47/027 ,  F02M59/468 ,  F02M63/0225

摘要： An engine control unit (ECU) of an internal combustion engine performs energy changing control for changing a charging amount (an upper limit value of charging voltage, charging speed or target energy) to a piezo stack of a piezo injector in accordance with common rail pressure. During the energy changing control, the ECU contracts a command injection period as the target energy charged to the piezo stack increases so that actual injection end timing or valve closing timing of a nozzle portion is unchanged even if the target energy is changed. Meanwhile, the ECU delays command injection timing as the target energy increases so that actual injection start timing or valve opening timing of the nozzle portion is unchanged even if the target energy is changed.