公开(公告)号：US06678604B2

公开(公告)日：2004-01-13

申请号：US09874995

申请日：2001-06-07

申请人： Kenichi Machida ,  Yoshiaki Hirakata ,  Tomomi Yuhara ,  Masahiko Abe

发明人： Kenichi Machida ,  Yoshiaki Hirakata ,  Tomomi Yuhara ,  Masahiko Abe

IPC分类号： F02D4118

CPC分类号： G05D7/0623 ,  F01P2025/08 ,  F02D31/007 ,  F02D41/0225 ,  F02D41/345 ,  F02D2200/501 ,  Y02T10/44 ,  Y10T477/68

摘要： To allow an engine having an intake duct for drawing running air to produce a high output by performing appropriate fuel injection depending on dynamic pressure variations. A vehicle speed corrective coefficient calculator calculates a fuel corrective coefficient KVPLS based on a vehicle speed VPLS, and a throttle corrective coefficient calculator calculates a corrective coefficient KV&thgr;TH based on a throttle opening &thgr;TH. A corrective coefficient multiplier multiplies the fuel corrective coefficient KVPLS and the corrective coefficient KV&thgr;TH, thus calculating a vehicle speed fuel adjustment corrective coefficient KVAF. An injection time calculator calculates a basic injection time TiM based on the throttle opening &thgr;TH and an engine rotational speed Ne, and also calculates a fuel injection time Ti by reading the vehicle speed fuel adjustment corrective coefficient KVAF and correcting the basic injection time TiM. When the engine rotational speed Ne is equal to or higher than a predetermined value Ne1 and also when the transmission is shifted to a low gear position, a corrective coefficient KVAF signal is applied to the injection time calculator.

摘要翻译： 通过根据动态压力变化执行适当的燃料喷射，允许具有用于吸入运行空气的进气管道的发动机产生高输出。 车速校正系数计算器基于车速VPLS计算燃料校正系数KVPLS，并且节气门校正系数计算器基于节气门开度θTH来计算校正系数KVthetaTH。 校正系数乘法器将燃料校正系数KVPLS和校正系数KVthetaTH相乘，从而计算车速燃料调节校正系数KVAF。 喷射时间计算器基于节气门开度θTH和发动机转速Ne计算基本喷射时间TiM，并且还通过读取车速燃料调节校正系数KVAF并校正基本喷射时间TiM来计算燃料喷射时间Ti。 当发动机转速Ne等于或高于预定值Ne1时，并且当变速器转换到低档时，校正系数KVAF信号被施加到喷射时间计算器。

公开(公告)号：US06467459B2

公开(公告)日：2002-10-22

申请号：US09893552

申请日：2001-06-29

申请人： Kenichi Machida ,  Yoshiaki Hirakata ,  Tomomi Yuhara ,  Masahiko Abe ,  Shiro Kokubu

发明人： Kenichi Machida ,  Yoshiaki Hirakata ,  Tomomi Yuhara ,  Masahiko Abe ,  Shiro Kokubu

IPC分类号： F02M5100

CPC分类号： F02D41/045 ,  F02D41/2422 ,  F02D41/32 ,  F02D2200/0404

摘要： To change a fuel injection quantity to follow a throttle opening change in a low load region. A first calculator calculates a basic injection time using a throttle opening and an engine rotational speed. A second calculator calculates a basic injection time using an intake pipe negative pressure and the engine rotational speed. A selector selects the first calculator when the load is higher, and selects the second calculator when the load is lower. If the rate of change of the throttle opening is greater than a reference value, then a switcher sets the selector to select the first calculator. Thus, if the rate of increase of the throttle opening is greater than the reference value even when the load is low, the first calculator is selected.

公开(公告)号：US06508234B2

公开(公告)日：2003-01-21

申请号：US10126696

申请日：2002-04-22

申请人： Kenichi Machida ,  Yoshiaki Hirakata ,  Toru Takeda

发明人： Kenichi Machida ,  Yoshiaki Hirakata ,  Toru Takeda

IPC分类号： F02M5100

CPC分类号： F02D41/047 ,  F02D41/10 ,  F02D41/3094 ,  F02D41/345 ,  F02M69/043 ,  F02M69/044 ,  Y02T10/44

摘要： A required fuel amount for an engine is calculated at a predetermined calculation cycle. A fuel injection amount to be injected from an upstream injection valve and a fuel injection amount to be injected from a downstream injection valve are then calculated. After fuel injection on the basis of the calculated fuel injection amounts, a lack of fuel delivered by the fuel injection amounts immediately before re-calculation of a required fuel amount at the calculation cycle until the end of an intake stroke (end of an intake valve opening period), is calculated by subtracting the fuel injection amounts from the re-calculated required fuel amount. The calculated lack of fuel amount is injected from the downstream injection valve during the intake stroke, e.g., in stages 6 and 7. A portion of a fuel injected from each of the fuel injection valves which has adhered on an inner wall of an intake pipe and subsequently released to be later supplied to the engine, is calculated in accordance with a predetermined adhesion ratio and a predetermined release ratio. The above lack of fuel amount is determined in consideration of the calculated portion of the fuel. The lack of fuel amount is additionally injected, e.g. a fuel correction amount, even during an engine transient state, and engine operability and fuel consumption are improved.

摘要翻译： 以预定的计算周期计算发动机的所需燃料量。 然后计算从上游喷射阀喷射的燃料喷射量和从下游喷射阀喷射的燃料喷射量。 在基于计算出的燃料喷射量的燃料喷射之后，在计算周期之前立即重新计算所需燃料量直到进气冲程结束（进气阀的末端）之前，由燃料喷射量输送的燃料不足 开始时间）通过从重新计算的所需燃料量中减去燃料喷射量来计算。 在进气冲程期间，例如在阶段6和7中，从下游喷射阀喷射计算出的燃料量不足。从每个燃料喷射阀喷射的燃料的一部分已经粘附在进气管的内壁上 并且随后释放以供应到发动机，根据预定的粘附比和预定的释放比计算。 考虑到计算出的燃料部分来确定上述的燃料量的不足。 另外注入燃料量的不足，例如， 即使在发动机过渡状态期间也能够提高燃料校正量，并且提高发动机的可操作性和燃料消耗。

公开(公告)号：US6135101A

公开(公告)日：2000-10-24

申请号：US323846

申请日：1999-06-02

申请人： Yuuichi Konno ,  Yoshiaki Hirakata ,  Kenichi Machida

发明人： Yuuichi Konno ,  Yoshiaki Hirakata ,  Kenichi Machida

IPC分类号： G01N27/409 ,  F02D41/14 ,  F02D41/22 ,  F02D45/00 ,  G01N27/26

CPC分类号： F02D41/1474 ,  F02D41/1495 ,  F02D41/1456

摘要： An oxygen concentration sensor trouble discriminating apparatus in which a counter executes a counting operation every time a lean state of an air-fuel ratio is detected on the basis of an output signal of an oxygen concentration sensor for the first time after a feedback control operating state was not detected. In the case where the air-fuel ratio feedback control operating state is detected, if the output signal of the oxygen concentration sensor indicates an inversion of the rich and lean states of the air-fuel ratio, a count value of the counter is reset to an initial value. When the count value is larger than a predetermined value, the oxygen concentration sensor is decided to be in trouble.

摘要翻译： 一种氧浓度传感器故障判别装置，其中，每当在反馈控制运行状态之后第一次基于氧浓度传感器的输出信号检测到空燃比的稀薄状态时，计数器执行计数操作 没有被检测到。 在检测到空燃比反馈控制动作状态的情况下，如果氧浓度传感器的输出信号表示空燃比的浓空状态的反转，则将计数器的计数值重新设定为 一个初始值。 当计数值大于预定值时，氧浓度传感器被确定为麻烦。

公开(公告)号：US06474309B2

公开(公告)日：2002-11-05

申请号：US09893651

申请日：2001-06-29

申请人： Kenichi Machida ,  Yoshiaki Hirakata

发明人： Kenichi Machida ,  Yoshiaki Hirakata

IPC分类号： F02D4110

CPC分类号： F02D41/10 ,  F02D11/105 ,  F02D11/106

摘要： Calculating an acceleration corrective in response to a subtle change in a throttle action by utilizing first and second rate-of-change calculators to calculate rates of change D&thgr;THA, D&thgr;THB of a throttle opening in preceding first and second periods (second period>first period) per a predetermined crankshaft rotational angle). A maximum value updater updates a stored value in a maximum value memory with a greater one of past and present maximum rates of change D&thgr;TH of the throttle opening, based on a compared result from a comparator. Points in a plurality of cycles read from a point calculator based on the maximum rate of change D&thgr;TH of the throttle opening are added together and inputted to a corrective value calculator. If the total of points is equal to or greater than a preset value, then an acceleration corrective quantity calculated by the corrective value calculator depending on the maximum value of rates of change of the throttle opening is supplied to a fuel injection time calculator, which calculates a fuel injection time Ti in view of the acceleration corrective quantity.

摘要翻译： 通过利用第一和第二变化率计算器计算先前的第一和第二周期（第二周期>第一周期）中的节气门开度的变化率DTHTA，DTHTATH， 根据预定的曲轴旋转角度）。 最大值更新器基于比较器的比较结果，以过去和现在的最大变化速度DthtaTH之间更大的一个最大值存储器中的存储值更新。 基于节气门开度的最大变化速度DTHTHTH从点计算器读取的多个循环中的点相加在一起并输入到校正值计算器。 如果点的总数等于或大于预设值，则根据节气门开度的变化率的最大值由校正值计算器计算的加速度校正量被提供给燃料喷射时间计算器，该计算器计算 考虑到加速度校正量的燃料喷射时间Ti。

公开(公告)号：US06223119B1

公开(公告)日：2001-04-24

申请号：US09323848

申请日：1999-06-02

申请人： Miyoko Akasaka ,  Yoshiaki Hirakata ,  Masahiko Abe ,  Yasuo Iwata

发明人： Miyoko Akasaka ,  Yoshiaki Hirakata ,  Masahiko Abe ,  Yasuo Iwata

IPC分类号： F02D4126

CPC分类号： F02D41/1406 ,  F02D41/263 ,  F02D41/345 ,  F02D2250/12 ,  Y02T10/44

摘要： Optimum control is performed in one cylinder of an internal combustion engine. By determining a desirable control operation stage for each cylinder in advance on the basis of engine parameters. Control operation is executed at the timing where the operation stage for each cylinder reaches the determined control operation stage.

摘要翻译： 在内燃机的一个气缸中进行最佳控制。 通过基于发动机参数预先确定每个气缸的期望的控制操作级。 在每个气缸的操作阶段达到确定的控制操作阶段的定时执行控制操作。

公开(公告)号：US06213913B1

公开(公告)日：2001-04-10

申请号：US09325750

申请日：1999-06-04

申请人： Yoshiaki Hirakata ,  Masahiko Abe ,  Yasuo Iwata

发明人： Yoshiaki Hirakata ,  Masahiko Abe ,  Yasuo Iwata

IPC分类号： B60K4104

CPC分类号： F02P5/1521 ,  F02D41/0225 ,  F02D2200/501 ,  Y02T10/46 ,  Y10T477/68

摘要： An ignition timing control method and apparatus for an internal combustion engine mounted on a motor vehicle can prevent the occurrence of the knocking in the internal combustion engine. When the engine is running within a specific speed range and the transmission gear ratio is high, the control device determines that the engine is running under a condition where knocking is likely to occur. Accordingly retarding of the ignition timing in the internal combustion engine is accomplished in order to prevent knocking.

摘要翻译： 用于安装在机动车辆上的内燃机的点火正时控制方法和装置可以防止在内燃机中发生爆震。 当发动机在特定速度范围内运行并且变速比高时，控制装置确定发动机在可能发生爆震的条件下运行。 因此，为了防止爆震而实现内燃机的点火正时的延迟。

公开(公告)号：US06560558B2

公开(公告)日：2003-05-06

申请号：US10062482

申请日：2002-02-05

申请人： Yoshiaki Hirakata ,  Masahiko Abe ,  Yasuo Iwata

发明人： Yoshiaki Hirakata ,  Masahiko Abe ,  Yasuo Iwata

IPC分类号： G01P300

CPC分类号： F02D41/0097 ,  G01P3/489

摘要： An engine speed calculating apparatus capable of calculating an engine speed without being affected by pulsating revolutions in a low engine speed range. A time required for a crankshaft of an engine to revolve through a predetermined angle is measured upon each completion of revolution through the predetermined angle, and an engine speed is calculated on the basis of measured result data of the time required for revolution through the predetermined angle. When the preceding calculated engine speed is determined to be lower than a predetermined engine speed, an engine speed is calculated on the basis of a time required for the crankshaft to revolve through an angle larger than the predetermined angle.

公开(公告)号：US06411917B1

公开(公告)日：2002-06-25

申请号：US09339259

申请日：1999-06-24

申请人： Yoshiaki Hirakata ,  Masahiko Abe ,  Yasuo Iwata

发明人： Yoshiaki Hirakata ,  Masahiko Abe ,  Yasuo Iwata

IPC分类号： G01P300

CPC分类号： F02D41/0097 ,  G01P3/489

摘要： An engine speed calculating apparatus capable of calculating an engine speed without being affected by pulsating revolutions in a low engine speed range. A time required for a crankshaft of an engine to revolve through a predetermined angle is measured upon each completion of revolution through the predetermined angle, and an engine speed is calculated on the basis of measured result data of the time required for revolution through the predetermined angle. When the preceding calculated engine speed is determined to be lower than a predetermined engine speed, an engine speed is calculated on the basis of a time required for the crankshaft to revolve through an angle larger than the predetermined angle.

摘要翻译： 一种发动机转速计算装置，其能够在低发动机转速范围内不受脉动转速的影响而计算发动机转速。 在每次完成转动预定角度时测量发动机曲轴以预定角度旋转所需的时间，并且基于通过预定角度的旋转所需时间的测量结果数据来计算发动机转速 。 当前述计算的发动机转速被确定为低于预定的发动机转速时，基于曲轴旋转大于预定角度的角度所需的时间来计算发动机转速。

公开(公告)号：US06334094B1

公开(公告)日：2001-12-25

申请号：US09339910

申请日：1999-06-25

申请人： Yoshiaki Hirakata ,  Masahiko Abe ,  Yasuo Iwata

发明人： Yoshiaki Hirakata ,  Masahiko Abe ,  Yasuo Iwata

IPC分类号： G01P300

CPC分类号： F02D41/0097 ,  G01P3/44 ,  G01P3/489

摘要： To provide an engine speed calculation apparatus which can facilitate calculation processing of the engine speed without being influenced by pulsation rotation in a low speed region of an engine. In a low speed region of an engine, a predetermined value is divided by a time required for rotation over an angle equal to a plurality of times of a predetermined angle to calculate the engine speed, but in a high speed region of the engine in which pulsation occurs less likely, the predetermined value is divided by the value equal to the plurality of times of the time required for rotation over the predetermined angle to calculate the engine speed.

摘要翻译： 提供一种可以促进发动机转速的计算处理而不受发动机的低速区域中的脉动旋转的影响的发动机转速计算装置。 在发动机的低速区域中，将预定值除以等于预定角度的多次的角度的旋转所需的时间来计算发动机转速，但是在发动机的高速区域中， 脉动发生不太可能，预定值除以与预定角度旋转所需时间的多个时间相等的值，以计算发动机转速。