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11. 发明授权

US06240359B1 Control system for internal combustion engine 有权
标题翻译：内燃机控制系统
公开(公告)号：US06240359B1
公开(公告)日：2001-05-29
申请号：US09416946
申请日：1999-10-13
申请人： Morio Fujiwara , Atsuko Hashimoto , Tatsuhiko Takahashi , Satoshi Wachi
发明人： Morio Fujiwara , Atsuko Hashimoto , Tatsuhiko Takahashi , Satoshi Wachi
IPC分类号： F01L134
CPC分类号： F02D13/0215 , F01L1/34 , F01L2001/34436 , F01L2001/34443 , F01L2201/00 , F01L2800/12 , F02D13/0261 , F02D41/22 , F02D41/221 , F02D41/266 , F02D2041/001 , Y02T10/18
摘要： A control system for an internal combustion engine which can judge and detect a failure of a valve timing changing unit regardless of operating conditions. The system includes a second storage unit 9 for storing the detection value of an actual valve timing detection unit 2 when the target advance angle set by a target advance angle setting device 3 is a predetermined value and updating the storage value, a storage value update inhibiting unit 10 for inhibiting the update of the storage value of the second storage unit when a change in the storage value updated by a first storage unit 4 is larger than a predetermined value, and failure judging unit 8A for judging a failure of the valve timing changing unit based on the target advance angle set, the detection value of the actual valve timing detection unit and the storage value of the second storage unit.
摘要翻译：一种用于内燃机的控制系统，其可以判断和检测气门正时改变单元的故障，而与操作条件无关。该系统包括第二存储单元9，用于当由目标提前角设置装置3设置的目标提前角为预定值并且存储值更新时，存储实际气门正时检测单元2的检测值，当由第一存储单元4更新的存储值的改变大于预定值时，用于禁止更新第二存储单元的存储值的单元10以及用于判断气门正时变化的故障的故障判断单元8A 基于目标提前角设定的单位，实际气门正时检测单元的检测值和第二存储单元的存储值。

12. 发明授权

US06591184B2 Cylinder identifying system for internal combustion engine 有权
公开(公告)号：US06591184B2
公开(公告)日：2003-07-08
申请号：US09846392
申请日：2001-05-02
申请人： Shiro Yonezawa , Atsuko Hashimoto , Hirofumi Ohuchi
发明人： Shiro Yonezawa , Atsuko Hashimoto , Hirofumi Ohuchi
IPC分类号： G06F1900
CPC分类号： F02D41/009
摘要： A cylinder identifying system for an internal combustion engine enables fuel injection and ignition controls for individual cylinders to be speedily performed upon starting of engine. A cylinder identifying means (10) operating on the basis of a crank angle signal (SGT) and a cam signal (SGC) includes a pulse signal number storage means (12) for dividing an ignition control period of each cylinder into plural subperiods for counting for storage signal numbers of specific pulses generated over plural subperiods, and a subperiod discriminating means (14) for determining discriminatively a sequential order of the plural subperiods on the basis of combinations of the numbers of the specific pulses generated during the plural subperiods. The combinations of the numbers of specific pulses generated during the plural subperiods differ one another correspondingly to the plural subperiods independently from the start points thereof. The cylinder identifying means (10) identifies the individual cylinders on the basis of results of determination made by the subperiod discriminating means (14) independently of positional relationships between the storage start points and the subperiods.

13. 发明授权

US06446602B1 Cylinder identifying system for internal combustion engine 有权
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.

14. 发明授权

US06276341B1 Internal-combustion engine control system 失效
标题翻译：内燃机控制系统
公开(公告)号：US06276341B1
公开(公告)日：2001-08-21
申请号：US09435024
申请日：1999-11-05
申请人： Tatsuhiko Takahashi , Takeshi Kawakami , Atsuko Hashimoto
发明人： Tatsuhiko Takahashi , Takeshi Kawakami , Atsuko Hashimoto
IPC分类号： F02D4110
CPC分类号： F02D41/18 , F02D13/0215 , F02D13/0261 , F02D33/00 , F02D2041/001
摘要： An internal-combustion engine control system is able to suppress the occurrence of problems such as changes in air-fuel ratio. The internal-combustion engine control system is equipped with intake pressure detecting means for detecting intake pressure in the internal-combustion engine; operating state detecting means for detecting the operating state of the internal-combustion engine; and controlling means for controlling the operation of the internal-combustion engine according to the operating state of the internal-combustion engine; wherein the controlling means corrects the amount of the fuel injection according to a differential pressure between the intake pressure in a steady operation mode of the internal-combustion engine and an intake pressure detected by the intake pressure detecting means.
摘要翻译：内燃机控制系统能够抑制空燃比变化等问题的发生。内燃机控制系统配备有用于检测内燃机中的进气压力的进气压力检测装置，操作状态检测装置，用于检测内燃机的运行状态; 以及控制装置，用于根据内燃机的运行状态来控制内燃机的运转; 其特征在于，所述控制单元根据所述内燃机的稳定运转模式中的进气压与由所述进气压力检测单元检测出的进气压力之间的压差来校正所述燃料喷射量。

15. 发明授权

US06397803B1 Valve timing control system for internal combustion engine 失效
标题翻译：内燃机气门正时控制系统
公开(公告)号：US06397803B1
公开(公告)日：2002-06-04
申请号：US09928993
申请日：2001-08-15
申请人： Morio Fujiwara , Atsuko Hashimoto , Tatsuhiko Takahashi
发明人： Morio Fujiwara , Atsuko Hashimoto , Tatsuhiko Takahashi
IPC分类号： F02D1302
CPC分类号： F02D13/0219 , F01L1/34 , F01L1/3442 , F01L2001/0537 , F01L2800/00 , F02B2275/18 , F02D41/042 , F02D41/06 , F02D2013/0292 , F02D2041/001 , F02N19/004 , Y02T10/18
摘要： A valve timing control system for an internal combustion engine for improving engine starting performance by controlling an actuator to a lock-up position upon stopping of the engine and fixing the actuator positively at the lock-up position by a locking mechanism. The control system (21A) includes a power supply interruption detecting means (215) for detecting a time point when electric power supply is interrupted, a desired valve timing setting means (213A) for setting a desired valve timing (VTo) on the basis of engine operation state (D), and an actual valve timing control means (214A) for driving the actuator (15, 16) so that the actual valve timing (VTA) coincides with the desired valve timing (VTo). An oil supply means (19, 20) for supplying a hydraulic pressure to the actuator is controlled over a predetermined time period from the power supply interruption time point in response to a result of detection of the power supply interruption detecting means (215) for thereby allowing the actuator (15, 16) to be retained at the lock-up position.
摘要翻译：一种用于内燃机的气门正时控制系统，用于通过在发动机停止时将致动器控制到锁定位置并通过锁定机构将致动器固定在锁定位置处，从而提高发动机起动性能。控制系统（21A）包括用于检测供电中断时间点的电源中断检测装置（215），用于基于以下方式设定期望的气门正时（VTo）的期望的气门正时设定装置（213A）发动机运转状态（D）和用于驱动致动器（15,16）的实际气门正时控制装置（214A），使得实际气门正时（VTA）与期望的气门正时（VTo）一致。响应于电源中断检测装置（215）的检测结果，在电源中断时间点的预定时间段内控制用于向致动器供应液压的供油装置（19,20），由此允许致动器（15,16）保持在锁定位置。

16. 发明授权

US06412459B1 Valve timing controller for internal combustion engine 失效
公开(公告)号：US06412459B1
公开(公告)日：2002-07-02
申请号：US09859818
申请日：2001-05-18
申请人： Tatsuhiko Takahashi , Atsuko Hashimoto
发明人： Tatsuhiko Takahashi , Atsuko Hashimoto
IPC分类号： F02D1302
CPC分类号： F01L1/34 , F01L2001/0537 , F01L2001/34426 , F01L2800/00 , F02B2275/18
摘要： There is disclosed a valve timing controller having excellent response and used with an internal combustion engine. The controller performs a corrective control operation according to the oil pressure control characteristics of the actually mounted valve. The valve timing controller comprises an intake cam, an exhaust cam, an actuator for varying the phase of rotation of one of the cams relative to the crankshaft of the engine, an oil pressure control valve for applying oil pressure on the actuator, and a control means for controlling the valve timing by controlling the oil pressure output from the oil pressure control valve. The oil pressure output is controlled by controlling the current through the solenoid in the oil pressure control valve. The two cams are driven by the crankshaft of the engine. The intake cam opens and closes the intake valve. The exhaust cam opens and closes the exhaust valve. The control means detects the currents supplied into the solenoid to activate the actuator in different operating conditions of the engine. The characteristics of the oil pressure control valve are detected from the difference in the current value under these different operating conditions. An amount of control current is determined.

17. 发明授权

US5309757A Cylinder identifying apparatus for a multi-cylinder internal combustion engine 失效
标题翻译：用于多气缸内燃机的气缸识别装置
公开(公告)号：US5309757A
公开(公告)日：1994-05-10
申请号：US908467
申请日：1992-07-06
申请人： Atsuko Hashimoto , Toshio Iwata
发明人： Atsuko Hashimoto , Toshio Iwata
IPC分类号： F02D41/06 , F02D41/34 , F02P7/077 , G01M15/00
CPC分类号： F02D41/009 , F02D41/062 , F02P7/0775
摘要： A cylinder identifying apparatus for a multi-cylinder internal combustion engine can generate an exact reference position signal at an earliest possible time during engine start-up operation, thereby making it possible to identify predetermined reference positions of each cylinder in a highly accurate manner. A first signal generator 1 is provided on a camshaft for generating a cylinder identifying signal SC in synchronization with the rotation of the camshaft. A second signal generator 4 is provided on a crankshaft for generating, in synchronization with the rotation of the crankshaft, a pulse signal P containing a series of pulses each corresponding to predetermined first and second crank positions of each cylinder. A reference position signal generating circuit 2 generates, based on the output signals from the first and second signal generators, a reference position signal ST containing a series of pulses each exactly indicating the predetermined crank position of each cylinder and a cylinder identifying information signal indicative of the cylinder corresponding to each pulse of the reference position signal.
摘要翻译：用于多缸内燃机的气缸识别装置可以在发动机起动操作期间尽可能早地产生精确的基准位置信号，从而可以以高度准确的方式识别每个气缸的预定基准位置。第一信号发生器1设置在凸轮轴上，用于与凸轮轴的旋转同步地产生气缸识别信号SC。第二信号发生器4设置在曲轴上，用于与曲轴的旋转同步地产生包含每个对应于每个气缸的预定第一和第二曲柄位置的一系列脉冲的脉冲信号P. 参考位置信号发生电路2基于来自第一和第二信号发生器的输出信号产生包含精确指示每个气缸的预定曲柄位置的一系列脉冲的参考位置信号ST和指示每个气缸的预定曲柄位置的气缸识别信息信号气缸对应于参考位置信号的每个脉冲。

18. 发明授权

US5263450A Control apparatus for a multi-cylinder internal combustion engine 失效
标题翻译：用于多缸内燃机的控制装置
公开(公告)号：US5263450A
公开(公告)日：1993-11-23
申请号：US904582
申请日：1992-06-26
申请人： Atsuko Hashimoto , Toshio Iwata
发明人： Atsuko Hashimoto , Toshio Iwata
IPC分类号： F02D41/34 , F02P5/15 , F02P7/06 , F02P7/077 , G01D5/247 , F02D41/30
CPC分类号： F02D41/009 , F02P5/1506 , F02P7/061 , F02P7/0775 , G01D5/247 , Y02T10/46
摘要： A control apparatus can electronically control the operation of a multi-cylinder engine in a precise manner. A first signal generator 1 and a second signal generator 2 are provided on a camshaft operatively connected with a crankshaft for generating a cylinder identifying signal SC and a reference position signal ST, respectively, in synchronism with the rotation of the camshaft. A pulse signal generator 6 or 12 is provided on a crankshaft for generating a pulse signal P of a high frequency in synchronism with the rotation of the crankshaft. The reference position signal ST contains a series of pulses each indicative of a first and a second reference position for each cylinder which are modified by counting the number of pulses in the pulse signal P to provide exact reference positions. A microcomputer 5 or 15 controls the engine based on the exact reference positions of each cylinder thus obtained. In a modified form, instead of two signal generators 1, 2, a single signal generator 11 is employed which is provided on the camshaft for generating a single signal SCT which contains a series of pulses having different pulse widths corresponding to different cylinders. The signal SCT and the pulse signal P are input via an AND gate 17 to a counter 16 where the number of pulses in the pulse signal P during the pulse width of each pulse of the SCT signal is counted for cylinder identification.
摘要翻译：控制装置可以以精确的方式电子地控制多缸发动机的操作。第一信号发生器1和第二信号发生器2设置在与曲轴可操作地连接的凸轮轴上，以分别与凸轮轴的旋转同步地产生气缸识别信号SC和参考位置信号ST。脉冲信号发生器6或12设置在曲轴上，用于产生与曲轴的旋转同步的高频脉冲信号P. 参考位置信号ST包含一系列脉冲，每个脉冲指示每个气缸的第一和第二参考位置，通过对脉冲信号P中的脉冲数进行计数来修正，以提供精确的参考位置。微型计算机5或15基于如此获得的每个气缸的精确基准位置来控制发动机。在修改形式中，代替两个信号发生器1,2采用单个信号发生器11，该单个信号发生器11设置在凸轮轴上，用于产生单个信号SCT，该单个信号SCT包含具有与不同气缸对应的不同脉冲宽度的一系列脉冲。信号SCT和脉冲信号P通过与门17输入到计数器16，在计数器16中，在SCT信号的每个脉冲的脉冲宽度期间脉冲信号P中的脉冲数被计数用于圆筒识别。

19. 发明授权

US5190011A Knocking control method and apparatus for internal combustion engine 失效
标题翻译：内燃机起动控制方法及装置
公开(公告)号：US5190011A
公开(公告)日：1993-03-02
申请号：US769415
申请日：1991-10-01
申请人： Atsuko Hashimoto , Toshio Iwata
发明人： Atsuko Hashimoto , Toshio Iwata
IPC分类号： F02B1/04 , F02P5/152
CPC分类号： F02P5/1525 , F02P5/152 , F02B1/04 , Y02T10/46
摘要： A method and an apparatus for suppressing knocking in an internal combustion engine are disclosed therein. Vibrations of the engine are detected periodically by a knocking sensor installed on the engine. Decision is made as to whether or not the vibration level as detected exceeds a predetermined value. In dependence on the result of the decision, the vibration level is averaged with a first or a second significance ratio which differ from each other and which are previously determined in consideration of variations in the vibration level brought about by degradation of the knocking sensor in the course of time lapse or by an engine operating state. A mean value obtained through the averaging processing is utilized as a basis for determining a threshold level for comparison with the vibration level for making decision as to the occurence of knocking. Upon detection of knocking, a retarded ignition control signal for retarding the ignition timing of the engine is generated to thereby suppress the occurrence of knocking. Because the threshold level reflects variations in the vibration level over time or variations in the engine operating state, knocking can be identified with improved reliability. Major portions of the apparatus can be implemented by using a microprocessor, whereby hardware requirement and expenditure can be mitigated significantly.
摘要翻译：公开了一种用于抑制内燃机中的爆震的方法和装置。通过安装在发动机上的爆震传感器周期性地检测发动机的振动。判定检测到的振动等级是否超过预定值。根据决定的结果，振动水平以彼此不同的第一或第二显着比平均，并且预先根据由于爆震传感器的劣化引起的振动水平的变化而确定时间流逝或发动机运转状态。通过平均处理获得的平均值被用作确定与振动水平进行比较的阈值水平的基础，以便作出关于敲击发生的决定。在检测到爆震时，产生用于延迟发动机点火正时的延迟点火控制信号，从而抑制爆震的发生。由于阈值水平反映了随时间的振动水平的变化或发动机工作状态的变化，所以能够以改善的可靠性来识别敲击。可以通过使用微处理器来实现设备的主要部分，从而可以显着地减轻硬件需求和支出。

20. 发明授权

US06213069B1 Valve timing control device for use in an internal combustion engine 失效
标题翻译：用于内燃机的气门正时控制装置
公开(公告)号：US06213069B1
公开(公告)日：2001-04-10
申请号：US09531219
申请日：2000-03-20
申请人： Koji Wada , Atsuko Hashimoto
发明人： Koji Wada , Atsuko Hashimoto
IPC分类号： F02D1302
CPC分类号： F02D13/0215 , F01L1/34 , F02D13/0219 , Y02T10/18
摘要： A valve timing control device for use in an internal combustion engine includes a valve timing controller for variably controlling the open/close timing of intake and exhaust valves of the internal combustion engine, a drive force estimator provided in the valve timing controller for estimating a drive force of a VVT actuator on the basis of a hydraulic pressure supplied thereto, and a variable control limiter for limiting control made by the valve timing controller when the drive force of the VVT actuator, which is estimated by the drive force estimator, is equal to or less than a variable valve timing control limit boundary value.
摘要翻译：一种用于内燃机的气门正时控制装置，具有用于可变地控制内燃机的进排气门的开/关正时的气门正时控制装置，设在气门正时控制装置内的驱动力估计装置，基于提供给液压的VVT致动器的力;以及可变控制限制器，用于当由驱动力估计器估计的VVT致动器的驱动力等于或等于时，限制由气门正时控制器进行的控制或小于可变气门正时控制极限边界值。

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