公开(公告)号：US06446602B1

公开(公告)日：2002-09-10

申请号：US09838256

申请日：2001-04-20

申请人： Shiro Yonezawa ,  Atsuko Hashimoto ,  Hirofumi Ohuchi

发明人： Shiro Yonezawa ,  Atsuko Hashimoto ,  Hirofumi Ohuchi

IPC分类号： F02D4500

CPC分类号： F02D41/009 ,  F01L1/34 ,  F01L2800/00 ,  F02D13/0234 ,  F02D2041/001

摘要： A cylinder identifying system for an internal combustion engine capable of establishing a complicated cam signal pulse pattern without need for setting specific periods for cylinder identification while enhancing control performance by reducing a crank rotation angle required for cylinder identification. A cylinder identifying means (10) for identifying discriminatively individual cylinders on the basis of a crank angle pulse signal (SGT) and a cam pulse signal (SGC) includes a pulse signal number storage means (12) for counting for storage signal numbers of specific pulses generated over a plurality of subperiods which are defined by dividing an ignition control period for each of the individual cylinders into plural subperiods, and an information series storage means (15) for storing information series each composed of a combination of the signal numbers generated during plural subperiods, respectively. The individual cylinders are identified on the basis of the information series.

公开(公告)号：US06240894B1

公开(公告)日：2001-06-05

申请号：US09359778

申请日：1999-07-26

申请人： Keiichi Enoki ,  Hirofumi Ohuchi

发明人： Keiichi Enoki ,  Hirofumi Ohuchi

IPC分类号： F02D4304

CPC分类号： F02D41/307 ,  F02B31/06 ,  F02D21/08 ,  F02D37/02 ,  F02D41/0057 ,  F02D41/2422 ,  F02D41/3029 ,  F02D2041/0015 ,  F02D2041/1432 ,  F02D2041/389 ,  F02D2200/0411 ,  Y02T10/146 ,  Y02T10/47

摘要： A control system for a cylinder injection type internal combustion engine which can improve exhaust gas quality, fuel cost performance and combustion behavior of the engine. The system includes a means (13) for injecting fuel directly into cylinders, an ignition means (8, 9, 10, 11), a means (7) for regulating an intake air quality (Qa), a control means (12A, 12B) for controlling the fuel injection valves (13), the ignition means (8, 9, 10, 11) and the intake air flow regulating means (7) in dependence on the engine states. Additionally, using this control system, the fuel injection timing and ignition timing can be set accurately to values optimal for the currently validated combustion mode even in transient operation phases of the engine and regardless of variance in the mechanical structure of the intake system.

摘要翻译： 一种用于气缸喷射型内燃机的控制系统，其可以改善发动机的废气质量，燃料成本性能和燃烧行为。 该系统包括用于将燃料直接喷射到气缸中的装置（13），点火装置（8,9,10,11），用于调节进气空气质量（Qa）的装置（7），控制装置（12A，12B） ），用于根据发动机状态控制燃料喷射阀（13），点火装置（8,9,10,11）和进气调节装置（7）。 此外，使用该控制系统，即使在发动机的暂态运行阶段，燃料喷射正时和点火正时也可精确地设定为目前验证的燃烧模式的最佳值，并且不考虑进气系统的机械结构的变化。

公开(公告)号：US6016794A

公开(公告)日：2000-01-25

申请号：US14153

申请日：1998-01-27

申请人： Atsuko Hashimoto ,  Shiro Yonezawa ,  Hirofumi Ohuchi ,  Tatsuhiko Takahashi

发明人： Atsuko Hashimoto ,  Shiro Yonezawa ,  Hirofumi Ohuchi ,  Tatsuhiko Takahashi

IPC分类号： F02D9/02 ,  F02D11/10 ,  F02D41/00 ,  F02D41/04 ,  F02D41/10 ,  F02D41/14 ,  F02D41/18 ,  F02D41/34 ,  F02D43/00 ,  F02D45/00 ,  F02D41/30

CPC分类号： F02D41/008 ,  F02D11/106 ,  F02D41/105 ,  F02D41/1406 ,  F02D41/182 ,  F02D2200/0408

摘要： A fuel injection control apparatus for an internal combustion engine includes an injector control apparatus 120B for controlling a fuel injection amount toward a target fuel injection amount Fm. The injector control apparatus 120B includes an expected engine revolution number calculating means 9 for calculating an expected engine revolution number Nf for a predetermined interval based on the engine revolution number Ne, expected throttle opening degree calculating means 10 for calculating an expected throttle opening degree .theta.f for the predetermined interval based on a throttle opening degree .theta., expected drawn air amount calculating means 11 for calculating an expected drawn air amount Qf for the predetermined interval based on the expected engine revolution number and the expected throttle opening degree, and target fuel injection amount calculating means 12 for calculating a target fuel injection amount Fm. With the above arrangement, a deviation in air-fuel ratio is suppressed and an exhaust gas is improved.

摘要翻译： 用于内燃机的燃料喷射控制装置包括用于控制朝向目标燃料喷射量Fm的燃料喷射量的喷射器控制装置120B。 喷射器控制装置120B包括：预计的发动机转数计算装置9，用于基于发动机转数Ne计算预定间隔的预期发动机转数Nf;期望的节气门开度计算装置10，用于计算预期的节气门开度θf 基于节气门开度θ的预定间隔，基于预期发动机转数和预期节气门开度计算预定间隔的预期抽吸空气量Qf的预期抽出空气量计算装置11和目标燃料喷射量 用于计算目标燃料喷射量Fm的计算装置12。 通过上述结构，能够抑制空燃比的偏差，提高废气。

公开(公告)号：US5794585A

公开(公告)日：1998-08-18

申请号：US956040

申请日：1997-10-24

申请人： Shiro Yonezawa ,  Hirofumi Ohuchi

发明人： Shiro Yonezawa ,  Hirofumi Ohuchi

IPC分类号： F02D41/30 ,  F02D41/40 ,  F02B1/14 ,  F02B41/00

CPC分类号： F02D41/3029 ,  F02D41/402 ,  F02D2041/389 ,  F02D2250/12 ,  Y02T10/44

摘要： A cylinder injection fuel control device for an internal-combustion engine provides a proper amount of fuel at the time of transient operation by reflecting the most up-to-date operational state in control. The cylinder injection fuel control device has a fuel injection valve for directly injecting fuel into each cylinder of an internal-combustion engine and it supplies the amount of fuel required for a single stroke of each cylinder by applying, to each fuel injection valve, an injection signal of a pulse width corresponding to the driving time of each fuel injection valve; wherein the injection signal applied in a single stroke of each cylinder is divided into three pulses, and the amount of fuel required for a single stroke is divided into three portions. A first injection signal and a second injection signal are respectively applied during a suction stroke, and a third injection signal is applies during a compression stroke to the fuel injection valve of each cylinder, and the amount of fuel supplied in response to the second injection signal is corrected in accordance with the operational state of the internal-combustion engine.

摘要翻译： 用于内燃机的气缸喷射燃料控制装置通过在控制中反映最新的操作状态来在瞬时操作时提供适当量的燃料。 气缸喷射燃料控制装置具有用于将燃料直接喷射到内燃机的每个气缸中的燃料喷射阀，并且通过向每个燃料喷射阀施加喷射来提供每个气缸的单个行程所需的燃料量 对应于每个燃料喷射阀的驱动时间的脉冲宽度的信号; 其中以每个气缸的单个行程施加的喷射信号被分成三个脉冲，并且将单个行程所需的燃料量分成三个部分。 在吸入行程期间分别施加第一喷射信号和第二喷射信号，并且在压缩行程期间将第三喷射信号施加到每个气缸的燃料喷射阀，并且响应于第二喷射信号而供应的燃料量 根据内燃机的运转状态进行修正。

公开(公告)号：US5517848A

公开(公告)日：1996-05-21

申请号：US457462

申请日：1995-06-01

申请人： Yasuhiko Hosoya ,  Hirofumi Ohuchi ,  Tatsuhiko Takahashi

发明人： Yasuhiko Hosoya ,  Hirofumi Ohuchi ,  Tatsuhiko Takahashi

IPC分类号： F01N3/22 ,  F01N3/30 ,  F01N3/32 ,  F01N9/00 ,  F01N11/00 ,  F01N13/02 ,  F02D35/00 ,  F02D41/22 ,  B01D53/34

CPC分类号： F01N3/222 ,  F01N11/00 ,  F01N13/009 ,  F01N13/0097 ,  F01N3/22 ,  F01N3/306 ,  F01N3/32 ,  F01N9/00 ,  F02D35/0038 ,  F02D41/221 ,  F01N2550/14 ,  Y02T10/20 ,  Y02T10/40 ,  Y02T10/47

摘要： In an exhaust gas purification system for an internal combustion engine including a catalytic converter disposed in an exhaust pipe, an apparatus for controlling an amount and temperature of fresh air fed into the exhaust pipe so that optimal purification efficiency of the catalytic converter can realized. The apparatus includes an air pump for taking in fresh air, a control valve for controlling air flow, a heater for heating the air and the controller for controlling the pump, the valve and the hater in dependence on engine operation states so that nitrogen oxides, carbon monoxide and hydrocarbon contained in the exhaust gas can be removed to a maximum through reduction and oxidation reactions. An abnormality detecting device detects occurrence of abnormality in the air feeding control apparatus for ensuring fail-safe operation thereof.

公开(公告)号：US5425234A

公开(公告)日：1995-06-20

申请号：US308511

申请日：1994-09-21

申请人： Hirofumi Ohuchi ,  Shinya Fujimoto

发明人： Hirofumi Ohuchi ,  Shinya Fujimoto

IPC分类号： F01N11/00 ,  F02D41/14 ,  F01N3/20

CPC分类号： F02D41/0235 ,  F01N11/007 ,  F02D41/1441 ,  F01N2550/02 ,  F01N2900/0421 ,  F01N2900/0422 ,  F02D2041/1409 ,  F02D2041/1432 ,  F02D2041/228 ,  Y02T10/47

摘要： A dual-sensor type air-fuel ratio control system for an internal combustion engine. A catalytic converter disposed within an exhaust pipe is flanked by first and second upstream and downstream air-fuel ratio sensors 11, 12. An apparatus for detecting deterioration of the catalytic converter includes a deterioration parameter calculating circuit 60, a filter circuit 61, and a comparison decision circuit 62. The decision circuit compares a filtered deterioration parameter value .gamma.f with a predetermined value corresponding to a detected operation state of the engine to determine deterioration of the catalyst when the deterioration parameter value exceeds the predetermined value.

摘要翻译： 一种用于内燃机的双传感器型空燃比控制系统。 设置在排气管内的催化转化器侧面是第一和第二上游和下游空燃比传感器11,12。一种用于检测催化转化器的劣化的装置包括劣化参数计算电路60，过滤电路61和 比较判定电路62.判定电路将滤波后的劣化参数值γf与对应于发动机检测到的运转状态的规定值进行比较，判定劣化参数值超过规定值时催化剂的劣化。

公开(公告)号：US5257610A

公开(公告)日：1993-11-02

申请号：US897356

申请日：1992-06-11

申请人： Hirofumi Ohuchi

发明人： Hirofumi Ohuchi

IPC分类号： F02D41/00 ,  F02D41/22 ,  F02M25/07 ,  F02M25/06

CPC分类号： F02D41/0055 ,  F02M26/49 ,  F02M26/57 ,  Y02T10/47

摘要： A troubleshooting system for an exhaust gas recirculation (EGR) controller, which troubleshoots the EGR controller in an optimal short EGR-OFF time by not only detecting either a rate of change of an intake manifold pressure or a difference between a maximum and a minimum thereof associated with the turning on and of the EGR in accordance with an EGR flow amount using an operation condition detecting means, but also detecting a number of revolutions of an engine or the like.

摘要翻译： 用于排气再循环（EGR）控制器的故障排除系统，其通过不仅检测进气歧管压力的变化率或其最大值和最小值之间的差异，在最佳短的EGR关闭时间内对EGR控制器进行故障排除 与使用操作条件检测装置的EGR流量相关的EGR与EGR相关联，还检测发动机等的转数。

公开(公告)号：US5024196A

公开(公告)日：1991-06-18

申请号：US610664

申请日：1990-11-08

申请人： Hirofumi Ohuchi

发明人： Hirofumi Ohuchi

IPC分类号： F02D41/16 ,  F02D31/00 ,  F02D41/04

CPC分类号： F02D41/04 ,  F02D31/005

摘要： An idle speed adjusting system for effecting feedback control of the idle speed of an internal combustion engine comprises a reference control amount output circuit for producing and delivering a reference control signal necessary for maintaining a command engine speed; a speed controller for generating a speed correction signal representing the offset of the running speed of the engine from the command engine speed; a flow rate controller for controlling the flow rate of intake air supplied to the engine, in accordance with the reference control signal and the speed correction signal; and an auxiliary flow rate controller for controlling the flow rate of the intake air in accordance with the speed correction signal and independently of the flow rate controller, so as to adjust the speed correction signal to a predetermined value. In the system, there is provided an ambient air temperature sensor for delivering an ambient air temperature signal to the reference control amount output circuit so as to vary the reference control signal in accordance with a change in the ambient air temperature.

摘要翻译： 用于实现内燃机的怠速的反馈控制的怠速调整系统包括用于产生和传送维持指令发动机转速所需的基准控制信号的基准控制量输出电路; 速度控制器，用于产生表示发动机的运行速度与指挥发动机转速的偏差的速度校正信号; 流量控制器，用于根据参考控制信号和速度校正信号控制供给发动机的进气流量; 以及辅助流量控制器，用于根据速度校正信号控制进气的流量，并且独立于流量控制器，以便将速度校正信号调整到预定值。 在该系统中，提供了一种环境空气温度传感器，用于将环境空气温度信号传送到参考控制量输出电路，以便根据环境空气温度的变化改变参考控制信号。

公开(公告)号：US06513488B2

公开(公告)日：2003-02-04

申请号：US09793399

申请日：2001-02-27

申请人： Keiichi Enoki ,  Hirofumi Ohuchi ,  Takahiko Ono

发明人： Keiichi Enoki ,  Hirofumi Ohuchi ,  Takahiko Ono

IPC分类号： F02B500

CPC分类号： F02D41/401 ,  F01P2025/08 ,  F02B23/101 ,  F02B2075/125 ,  F02D2041/389 ,  F02M26/54 ,  Y02T10/123 ,  Y02T10/44

摘要： Fuel injection control apparatus for direct injection type internal combustion engine controls timing of end of fuel injection so as to be capable of controlling fuel injection volume precisely without raising fuel pressure. The apparatus comprises crank angle sensor 16 detecting rotational angle of internal combustion engine, fuel injection valve 4 directly injecting fuel to combustion chamber, fuel pump 19 supplying fuel to said fuel injection valve 4 whereby supply pressure of fuel is set equal to or less than the maximum cylinder pressure during motoring of internal combustion engine 1, and control means 22 for controlling open or close timing of said fuel injection valve 4 to control fuel injection amount and fuel injection duration and judging timing of closing of the intake valve 9 of inner combustion engine 1 from the rotational angle output of crank angle sensor 16 and controlling fuel injection timing to close fuel injection valve 4 not later than the closing of intake valve 9.

公开(公告)号：US06499450B2

公开(公告)日：2002-12-31

申请号：US09892863

申请日：2001-06-28

申请人： Tatsuhiko Takahashi ,  Atsuko Hashimoto ,  Hirofumi Ohuchi

发明人： Tatsuhiko Takahashi ,  Atsuko Hashimoto ,  Hirofumi Ohuchi

IPC分类号： F01L134

CPC分类号： F01L1/022 ,  F01L1/024 ,  F01L1/34 ,  F01L1/3442 ,  F01L2001/0537 ,  F01L2001/3443 ,  F01L2001/34473 ,  F01L2800/00 ,  F01L2820/041 ,  F01N2430/10 ,  F02B2275/18 ,  F02D13/0219 ,  F02D13/0261 ,  F02D41/0255 ,  F02D41/064 ,  F02D2013/0292 ,  F02D2041/001 ,  F02D2041/002 ,  F02P5/1506 ,  Y02T10/18 ,  Y02T10/26 ,  Y02T10/46

摘要： A valve timing control system for accelerating activation of a catalytic converter in an internal combustion engine in a cold starting operation mode. The system includes actuators (15, 16) coupled to cam shafts (15C, 16C), hydraulic pressure supply units (19, 20) for driving the actuators (15; 16), and a controller (21A) for controlling a hydraulic pressure for the actuators (15, 16) in dependence on engine operation states to change phase of the cam shafts (15C; 16C) relative to a crank shaft. The actuator (15; 16) includes a locking mechanism (155, 157) for setting the relative phase to a lock-up position, and an unlocking mechanism (156) for releasing the locking mechanism in En response to a predetermined hydraulic pressure. The controller (21A) sets the relative phase to the lock-up position in a starting operation, while controlling the relative phase to be advanced in an engine state succeeding to the starting operation.

摘要翻译： 一种用于在冷起动操作模式下加速内燃机中的催化转化器的启动的气门正时控制系统。 该系统包括联接到凸轮轴（15C，16C）的致动器（15,16），用于驱动致动器（15; 16）的液压供应单元（19,20））和用于控制液压 所述致动器（15,16）根据发动机操作状态改变所述凸轮轴（15C; 16C）相对于曲轴的相位。 致动器（15; 16）包括用于将相对相位设定到锁定位置的锁定机构（155,157），以及用于响应于预定液压压缩释放锁定机构的解锁机构（156）。 控制器（21A）在启动操作中将相对相位设置为锁定位置，同时控制在起动操作之后的发动机状态下提前相对相位。