公开(公告)号：US5012779A

公开(公告)日：1991-05-07

申请号：US510759

申请日：1990-04-18

Applicant: Wataru Fukui ,  Toshio Iwata

Inventor： Wataru Fukui ,  Toshio Iwata

IPC: F02P5/15

CPC classification number: F02P5/1508 ,  Y02T10/46

Abstract: An engine control device for controlling the number of revolutions per minute of an engine to be at a prescribed target value in a precise manner during the idling operation thereof. A signal generator generates an output signal representative of the crank angle of the engine in synchrony with the rotation thereof. In one aspect, the number of revolutions per minute of the engine is successively calculated based on the signal generator output. A present average number of revolutions per minute of the engine is calculated and updated every ignition instant. A deviation of the present average number of rpm from the predetermined target value is calculated from the present average number of rpm. The ignition timing is determined based on the deviation thus calculated in such a manner as to maintain the number of engine rpm at the target value. In another aspect, when the number of engine rpm falls into a prescribed idling operation range such as when the engine is decelerated with a clutch disengaged, the operation of the controller for maintaining the number of rpm at the target value is delayed a predetermined time so that a sharp change or an excessive decrease below the target value in the number or rpm can be avoided.

Abstract translation: 一种发动机控制装置，用于在怠速运转期间以精确的方式将发动机的每分钟转数控制在规定的目标值。 信号发生器与其旋转同步地产生表示发动机的曲柄角的输出信号。 在一个方面，基于信号发生器输出连续地计算发动机的每分钟转数。 每个点火时刻计算并更新目前每分钟发动机的平均转数。 根据目前的平均转数，计算当前平均转数与预定目标值的偏差。 基于由此计算出的偏差确定点火正时，以使发动机转数为目标值。 在另一方面，当发动机转数达到规定的怠速运转范围时，例如当发动机在离合器脱离时减速时，用于将转数维持在目标值的控制器的操作延迟预定时间，因此 可以避免在数量或转速下低于目标值的急剧变化或过度降低。

公开(公告)号：US10006382B2

公开(公告)日：2018-06-26

申请号：US14441555

申请日：2013-12-09

Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA ,  Takashi Tsunooka ,  Wataru Fukui

Inventor： Takashi Tsunooka ,  Wataru Fukui

IPC: F02B37/18 ,  F02D41/00 ,  F02D41/14 ,  F02B37/22

CPC classification number: F02D41/0007 ,  F02B37/18 ,  F02B37/183 ,  F02D41/0085 ,  F02D41/1456 ,  Y02T10/144

Abstract: An apparatus for detecting inter-cylinder air-fuel ratio imbalance in an engine is provided. The apparatus includes a turbocharger, a bypass passage configured to bypass a turbine of the turbocharger, a waste gate valve configured to selectively close the bypass passage, an air-fuel ratio sensor installed in a portion of an exhaust passage which portion is located on a downstream side of a junction between a downstream side of the turbine and a downstream side of the bypass passage, and a determination unit programmed to compare a value of a degree of fluctuation in an output from the air-fuel ratio sensor or a parameter correlated therewith with a predetermined threshold to perform inter-cylinder air-fuel ratio imbalance determination. The determination unit is programmed not to perform the imbalance determination when an opening degree of the waste gate valve is equal to or higher than a predetermined reference value.

公开(公告)号：US20130327037A1

公开(公告)日：2013-12-12

申请号：US13981929

申请日：2012-01-31

Applicant: Wataru Fukui

Inventor： Wataru Fukui

IPC: F02D41/02

CPC classification number: F02D41/0235 ,  F02B37/00 ,  F02D41/0007 ,  F02D41/1454 ,  F02D41/2441 ,  F02D41/2454 ,  F02D2200/021 ,  Y02T10/144

Abstract: An ECU determines whether or not an engine water temperature has exceeded a predetermined value; and actively opens and closes a wastegate valve, and calculates a shift in a learning value amount. The ECU determines whether or not the learning value shift amount is sufficiently large to surpass a predetermined value and when the determination result is Yes (when the condition is fulfilled), takes in the learning value shift. The ECU determines whether or not the engine water temperature is sufficiently low to be below a predetermined value and reflects the learning value shift in the air-fuel ratio learning value.

Abstract translation: ECU判断发动机水温是否超过预定值; 并且主动地打开和关闭废气门阀，并且计算学习值量的偏移。 ECU确定学习值偏移量是否足够大以超过预定值，并且当确定结果为是（满足条件时），接受学习值偏移。 ECU判断发动机水温是否足够低以至低于预定值，并反映空燃比学习值的学习值偏移。

公开(公告)号：US06647967B2

公开(公告)日：2003-11-18

申请号：US09996902

申请日：2001-11-30

Applicant: Wataru Fukui ,  Tosiki Kurokawa

Inventor： Wataru Fukui ,  Tosiki Kurokawa

IPC: F02M5100

CPC classification number: F02D41/182 ,  F02D2041/1432 ,  F02D2200/0404 ,  F02D2200/0406 ,  Y10T477/68

Abstract: A fuel injection control device for an internal combustion engine is provided, which comprises: a rpm sensor for detecting an engine speed; an intake pressure sensor for detecting an intake pressure; a throttle sensor for detecting the throttle opening degree; a first basic fuel injection volume calculating device for calculating a first basic fuel injection volume according to a fuel volume calculated by using the engine speed and the intake pressure as parameters; a second basic fuel injection volume calculating device for calculating a second basic fuel injection volume according to a fuel volume calculated by using the engine speed and the throttle opening degree as parameters; and a ratio calculating device for performing arithmetic operations on the first basic fuel injection volume and the second basic fuel injection volume at a desired mixture ratio, and the ratio calculating device gradually changes the mixture ratio at regular time intervals.

公开(公告)号：US06622703B2

公开(公告)日：2003-09-23

申请号：US09996599

申请日：2001-11-30

Applicant: Wataru Fukui ,  Toshiki Kurokawa

Inventor： Wataru Fukui ,  Toshiki Kurokawa

IPC: F02M5100

CPC classification number: F02D41/105 ,  F02D2250/12

Abstract: To provide a fuel injection control device for an internal combustion engine which can suppress body vibrations, shocks, etc. and can control the fuel injection quantities during transitional periods easily and effectively in a simple manner. The fuel injection control device includes a crank angle sensor for detecting one angle reference position of at least the suction stroke or earlier strokes or two cylinders whose strokes shift from each other by 360 degrees of crank angle in a four-cycle multi-cylinder engine; various sensors for detecting the operating conditions of the engine; and a control section for determining the appropriate fuel injection quantity for each cylinder of the engine based on engine revolution information derived from the detected cycle of angle reference position detection signals and on operating condition detection signals, in which ½ of the fuel injection quantity determined based on the engine revolution information derived from the detected cycle of the angle reference position detection signals of each of the two cylinders and on the operating condition detection signals is injected simultaneously into the two cylinders.

Abstract translation: 提供一种可以抑制身体振动，冲击等的内燃机的燃料喷射控制装置，并且能够容易且有效地以简单的方式控制过渡期间的燃料喷射量。燃料喷射控制装置包括曲柄角传感器 用于在四冲程多缸发动机中检测至少吸入冲程或较早冲程的一个角度基准位置或两个气缸，其冲程彼此旋转360度的曲柄角; 用于检测发动机的操作条件的各种传感器; 以及控制部分，用于基于从检测到的角度基准位置检测信号的周期导出的发动机转速信息和基于确定的燃料喷射量的1/2的操作条件检测信号来确定发动机的每个气缸的适当的燃料喷射量 从两个气缸中的每一个的角度基准位置检测信号的检测周期以及操作条件检测信号得到的发动机转速信息同时注入到两个气缸中。

公开(公告)号：US06484692B2

公开(公告)日：2002-11-26

申请号：US09995734

申请日：2001-11-29

Applicant: Hideki Umemoto ,  Tadayuki Saga ,  Tatsuji Irie ,  Wataru Fukui

Inventor： Hideki Umemoto ,  Tadayuki Saga ,  Tatsuji Irie ,  Wataru Fukui

IPC: F02P900

CPC classification number: F02P9/005

Abstract: An ignition control system is provided, which includes: an engine speed detector (101) for calculating an engine speed according to an engine crank angle signal (100); a current supply start controller (102) for outputting a proper current supply start timing signal corresponding to the engine speed to an ignition coil (5); a current supply finish controller (103) for outputting a proper current supply timing signal corresponding to the engine speed to an ignition coil; an ignition coil controller (104) for controlling supply of power to the ignition coil (5) according to the current supply start timing signal and the current supply finish timing signal; and an overspeed determination device (105) for outputting an overspeed determination signal when determining that the engine speed is in excess of a predetermined limit value. The overspeed determination signal prohibits starting the supply of current, and retards the current supply finish timing to such a degree as to decrease engine torque.

Abstract translation: 提供一种点火控制系统，其包括：用于根据发动机曲柄角信号（100）计算发动机转速的发动机转速检测器（101）; 电流供应启动控制器，用于向点火线圈（5）输出对应于发动机转速的适当的电流供应开始定时信号; 用于向点火线圈输出对应于发动机转速的适当电流供给定时信号的电流供给完成控制器（103） 点火线圈控制器（104），用于根据当前供电开始定时信号和电流供应完成定时信号控制对点火线圈（5）的供电; 以及超速判定装置，用于当确定发动机转速超过预定极限值时输出超速确定信号。 超速确定信号禁止开始电流供应，并且将当前供电完成时间延迟到降低发动机扭矩的程度。

公开(公告)号：US06427316B1

公开(公告)日：2002-08-06

申请号：US09432158

申请日：1999-11-02

Applicant: Izuru Shinjo ,  Noriaki Hayashi ,  Naoki Hiraoka ,  Wataru Fukui ,  Yutaka Ohashi

Inventor： Izuru Shinjo ,  Noriaki Hayashi ,  Naoki Hiraoka ,  Wataru Fukui ,  Yutaka Ohashi

IPC: H01F706

CPC classification number: G01P1/026 ,  B29C45/14655 ,  G01P1/00 ,  G01P3/487 ,  G01P3/488 ,  Y10T29/4902 ,  Y10T29/49121 ,  Y10T29/49158

Abstract: A method of manufacturing a rotation sensor is provided. In the method, an insert conductor having a predetermined shape and having at least a connector terminal and a conversion device terminal is provided. The insert conductor is insert-molded in a resin base such that at least the connector terminal and the conversion device terminal of the insert conductor remain exposed from the resin base. A resin connector part is molded such that the resin connector part encircles the connector terminal. Also, a magnetoelectric conversion device is connected to the conversion device terminal of the insert conductor, and positioning parts are provided at a tip of the resin base. In addition, the magnetoelectric conversion device is sandwiched between the positioning parts to securely hold the magnetoelectric conversion device, and a press fit part is formed at the tip of the resin base. Also, an output terminal of the magnetoelectric conversion device is pressed against the conversion device terminal of the insert conductor with the press fit part.

Abstract translation: 提供一种制造旋转传感器的方法。 在该方法中，提供具有预定形状并且至少具有连接器端子和转换装置端子的插入导体。 插入导体嵌入成型在树脂基底中，使得至少插入导体的连接器端子和转换装置端子保持暴露于树脂基部。 树脂连接器部件被模制成使得树脂连接器部分环绕连接器端子。 此外，磁电转换装置连接到插入导体的转换装置端子，并且定位部分设置在树脂基部的尖端处。 此外，磁电转换装置夹在定位部件之间，以牢固地保持磁电转换装置，并且在树脂基座的尖端处形成压配合部分。 此外，磁压转换装置的输出端子通过压配合部分压靠在插入导体的转换装置端子上。

公开(公告)号：US5982171A

公开(公告)日：1999-11-09

申请号：US742504

申请日：1996-11-01

Applicant: Hideki Umemoto ,  Naoki Hiraoka ,  Wataru Fukui ,  Yutaka Ohashi ,  Masahiro Yokotani

Inventor： Hideki Umemoto ,  Naoki Hiraoka ,  Wataru Fukui ,  Yutaka Ohashi ,  Masahiro Yokotani

IPC: G01P3/488 ,  F02D35/00 ,  F02D45/00 ,  G01D5/14 ,  G01D5/16 ,  G01D5/18 ,  G01D5/245 ,  G01R33/09 ,  G01B7/30 ,  F02P7/067 ,  G01P3/481

CPC classification number: G01D5/147

Abstract: A sensing device capable of outputting a correct signal precisely corresponding to a particular position (angle) of, for example a protruding or recessed portion of a rotating member made of a magnetic material as soon as the electric power of the sensing device is turned on. The sensing device includes: a magnet for generating a magnetic field; a rotary member of magnetic material for changing the magnetic field generated by the magnet, the rotary member being disposed at a predetermined distance apart from the magnet; a giant magnetoresistance device which changes in resistance in response to the magnetic field whose magnitude is changed by the rotary member of magnetic material; and a differential amplifier for detecting the displacement of said rotary member of magnetic material and also the relative position of said rotary member of magnetic material with respect to said giant magnetoresistance device when said rotary member of magnetic material is at rest, on the basis of the output signal of said giant magnetoresistance device.

Abstract translation: 一旦感测装置的电力接通，能够输出精确地对应于由磁性材料制成的旋转构件的旋转构件的突出或凹陷部分的特定位置（角度）精确对准的信号。 感测装置包括：用于产生磁场的磁体; 用于改变由磁体产生的磁场的磁性材料的旋转构件，旋转构件设置在与磁体隔开预定距离处; 一种巨磁阻装置，其响应于由磁性材料的旋转构件改变其大小的磁场而改变电阻; 以及差分放大器，用于当所述磁性材料的所述旋转构件静止时，检测所述磁性材料的所述旋转构件的位移以及所述磁性材料的旋转构件相对于所述巨磁阻装置的相对位置， 所述巨磁电阻器件的输出信号。

公开(公告)号：US5794592A

公开(公告)日：1998-08-18

申请号：US890665

申请日：1997-07-09

Applicant: Wataru Fukui

Inventor： Wataru Fukui

IPC: F02P17/00 ,  F02D41/22 ,  F02D41/34 ,  F02D45/00 ,  F02N15/10 ,  F02P7/077 ,  F02P5/00

CPC classification number: F02D41/009 ,  F02P7/0775 ,  F02D2250/06

Abstract: In an internal combustion engine controller, a crank angle signal SGTP includes pulses corresponding to first and second reference crank angles and a cylinder identification signal SGCP includes a pulse having a phase difference to the crank angle signal, the pulse number of a specific cylinder from the second reference crank angle to the first reference crank angle is different from those of other cylinders, a control/arithmetic operation circuit includes means for calculating control timings, means for counting the pulse number of the cylinder identification signal, means for outputting a cylinder identification flag FC by assessing a cylinder identifying state based on a count value CP and a previous count value CPO and means for reflecting the cylinder identification flag to the output state of drive signals and control reflection means prohibits the output of the drive signals when the cylinder identification flag is abnormal. With this arrangement, the internal combustion engine controller is capable of avoiding the erroneous control of the internal combustion engine can be obtained without an increase in a cost.

Abstract translation: 在内燃机控制器中，曲柄角信号SGTP包括对应于第一和第二参考曲柄角的脉冲，并且气缸识别信号SGCP包括具有与曲柄角信号相位差的脉冲，来自所述曲柄角信号的特定气缸的脉冲数 与第一基准曲柄角的第二参考曲柄角不同于其他气缸的控制/运算电路包括用于计算控制定时的装置，用于对气缸识别信号的脉冲数进行计数的装置，用于输出气缸识别标志 FC通过基于计数值CP和先前计数值CPO评估气缸识别状态，以及用于将气缸识别标志反映到驱动信号的输出状态的装置，并且控制反射装置在气缸识别标志时禁止输出驱动信号 是异常的 利用这种布置，内燃机控制器能够避免在不增加成本的情况下获得内燃机的错误控制。

公开(公告)号：US5789919A

公开(公告)日：1998-08-04

申请号：US741690

申请日：1996-10-31

Applicant: Hideki Umemoto ,  Naoki Hiraoka ,  Wataru Fukui ,  Yutaka Ohashi ,  Masahiro Yokotani

Inventor： Hideki Umemoto ,  Naoki Hiraoka ,  Wataru Fukui ,  Yutaka Ohashi ,  Masahiro Yokotani

IPC: G01P3/488 ,  F02D35/00 ,  F02D45/00 ,  G01D5/14 ,  G01D5/16 ,  G01D5/18 ,  G01D5/245 ,  G01R33/09 ,  G01V3/08 ,  G01B7/14 ,  F02B53/06 ,  G01R33/06

CPC classification number: G01D5/147 ,  G01R33/09 ,  G01V3/08

Abstract: The invention provides a sensing device capable of outputting a high-accuracy signal precisely corresponding to a particular position (angle) of a rotating member made of a magnetic material without being disturbed by external noise. The sensing device includes: a magnet for generating a magnetic field; a rotating member made of a magnetic material, for changing the magnetic field generated by the magnet, the rotating member being disposed a predetermined distance apart from the magnet; and a giant magnetoresistance device whose resistance changes in response to the change in the magnetic field caused by the rotating member of magnetic material, wherein the size L.sub.3 of the magnetic field sensing plane of the giant magnetoresistance device is set to a value less than the smallest value of the dimensions L.sub.1 and L.sub.2 of the protruding and recessed portions of the rotating member of magnetic material, that is, the size L.sub.3 of the magnetic field sensing plane is set so that the following conditions are satisfied: L.sub.3 .ltoreq.L.sub.1 and L.sub.3 .ltoreq.L.sub.2.

Abstract translation: 本发明提供一种感测装置，其能够输出精确对应于由磁性材料制成的旋转构件的特定位置（角度）而不被外部噪声干扰的高精度信号。 感测装置包括：用于产生磁场的磁体; 由磁性材料制成的用于改变由磁体产生的磁场的旋转构件，旋转构件与磁体隔开预定距离; 以及响应于由磁性材料的旋转构件引起的磁场变化的电阻变化的巨磁电阻装置，其中巨磁电阻装置的磁场感测平面的尺寸L3被设定为小于最小值 磁性材料的旋转构件的突出和凹陷部分的尺寸L1和L2的值，即磁场感测平面的尺寸L3被设置为使得满足以下条件：L3