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1. 发明授权

US06802286B2 Valve timing control system for an 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：US06802286B2
公开(公告)日：2004-10-12
申请号：US10421871
申请日：2003-04-24
申请人： Morio Fujiwara , Tatsuhiko Takahashi , Koji Wada
发明人： Morio Fujiwara , Tatsuhiko Takahashi , Koji Wada
IPC分类号： F01L134
CPC分类号： F01L1/34 , F01L1/3442 , F01L2001/34469 , F02D2041/001 , F02D2200/023
摘要： The valve timing control system of the present invention comprises an actuator for changing an actual valve timing of an intake valve or an exhaust valve; an oil pressure adjusting unit for supplying operating oil to the actuator, and adjusting the oil pressure thereof; an actual valve timing control unit for controlling the actuator by controlling the oil pressure adjusting unit, so that the actual valve timing follows up a target value; and an oil temperature estimation unit for estimating the temperature of the operating oil, according to an operating state of the internal combustion engine from a previous operation, and according to its current operating state. Based on the estimated oil temperature, the actual valve timing control unit switches a control amount for controlling the oil pressure adjusting unit.
摘要翻译：本发明的气门正时控制系统包括用于改变进气门或排气门的实际气门正时的致动器; 油压调节单元，用于向致动器供给工作油，并调节其油压; 实际气门正时控制单元，用于通过控制油压调节单元来控制致动器，使得实际气门正时跟随目标值; 以及油温估计单元，用于根据前一操作的内燃机的运转状态，根据其当前的运行状态来推定运转油的温度。基于估计的油温，实际气门正时控制单元切换用于控制油压调节单元的控制量。

2. 发明授权

US06520131B2 Valve timing control system for internal combustion engine 失效
公开(公告)号：US06520131B2
公开(公告)日：2003-02-18
申请号：US09912361
申请日：2001-07-26
申请人： Tatsuhiko Takahashi , Morio Fujiwara , Koji Wada
发明人： Tatsuhiko Takahashi , Morio Fujiwara , Koji Wada
IPC分类号： F01L134
CPC分类号： F02D13/0219 , F01L1/34 , F01L1/3442 , F01L2001/34426 , F01L2800/00 , Y02T10/18
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 while enhancing control accuracy by learning a reference position of a cam angle. The system includes actuators (15; 16) coupled to cam shafts (15C; 16C), respectively, hydraulic pressure supply means (19; 20) for driving the actuators (15; 16), and a controller (21A) for controlling hydraulic pressure fed to the actuators (15; 16) in dependence on engine operation states to change phases of the cam shafts (15C; 16C) relative to a crank shaft (13C). The controller (21A) is so designed as to set a valve timing to a most advanced position or alternatively to a most retarded position in a cold-state idling operation mode for the purpose of learning a reference position.

3. 发明授权

US06761138B2 Valve timing control apparatus for internal combustion engine 失效
标题翻译：内燃机气门正时控制装置
公开(公告)号：US06761138B2
公开(公告)日：2004-07-13
申请号：US10281327
申请日：2002-10-28
申请人： Tatsuhiko Takahashi , Koji Wada
发明人： Tatsuhiko Takahashi , Koji Wada
IPC分类号： F01L134
CPC分类号： F01L1/3442 , F01L2001/34469 , F01L2800/00
摘要： Valve timing control apparatus for internal combustion engine includes a cam phase actuator (1113) composed of a first rotor (1) rotatable with a crank, a second rotor (6) fixed on a cam shaft (7) for actuating an intake or exhaust valve, and a lock mechanism (15, 16, 17, 18) for locking the second rotor to the first rotor at a first angle, a pump (1118) for generating a hydraulic pressure, an ECU (1117) for determining a current value for releasing a locked state at the first angle for shifting to a second angle, and an oil control valve (1114) for regulating a cam phase of the second rotor. The ECU determines a locked state or an unlocked state of the lock mechanism to allow the second rotor to be released from being locked to the first rotor when the lock mechanism is in the locked state.
摘要翻译：用于内燃机的气门正时控制装置包括由可旋转的曲柄的第一转子（1）组成的凸轮相位致动器（1113），固定在凸轮轴（7）上的第二转子（6），用于致动进气门以及用于将第二转子以第一角度锁定到第一转子的锁定机构（15,16,17,18），用于产生液压的泵（1118），用于确定用于产生液压的当前值的ECU（1117）以第一角度释放锁定状态以转换到第二角度;以及用于调节第二转子的凸轮相位的油控制阀（1114）。 ECU确定锁定机构的锁定状态或解锁状态，以便当锁定机构处于锁定状态时允许第二转子被释放而不被锁定到第一转子。

4. 发明授权

US06732689B2 Valve timing control apparatus for internal combustion engine 失效
标题翻译：内燃机气门正时控制装置
公开(公告)号：US06732689B2
公开(公告)日：2004-05-11
申请号：US10281310
申请日：2002-10-28
申请人： Koji Wada , Tatsuhiko Takahashi
发明人： Koji Wada , Tatsuhiko Takahashi
IPC分类号： F01L134
CPC分类号： F01L1/3442 , F01L2001/34469 , F01L2800/00 , Y10T74/2102
摘要： A valve timing control apparatus for an engine. Presence/absence of a torque demand (xtq) is estimated upon starting of a lock pin release control to thereby alter a change rate (&bgr;) of a target phase angle in dependence on presence/absence of the torque demand (xtq). Unless torque demand is issued, the change rate is set to a small value (&bgr;2) for suppressing the change of the target phase angle (&thgr;t) after detection of release of the lock pin in order to avoid a shock unexpected by a driver. When the torque demand is issued, the change rate is set to a large value (&bgr;1) for allowing the target phase angle to approach speedily to a base target phase angle (&thgr;map) for thereby minimizing a delay in response involved in the phase angle detection through the lock pin release control.
摘要翻译：一种用于发动机的气门正时控制装置。在锁定销释放控制开始时估计扭矩需求（xtq）的存在/不存在，从而根据扭矩需求（xtq）的存在/不存在来改变目标相位角的变化率（β）。除非发出扭矩要求，否则在检测到锁定销的释放之后，将变化率设定为用于抑制目标相位角（attat）的变化的小的值（β2），以避免驾驶员意外的冲击。当发出扭矩需求时，将变化率设定为大的值（β1），以允许目标相位角快速接近基本目标相位角（tamap），从而最小化参与相位角检测的响应延迟通过锁销释放控制。

5. 发明授权

US06758176B2 Valve timing control apparatus for internal combustion engine 失效
标题翻译：内燃机气门正时控制装置
公开(公告)号：US06758176B2
公开(公告)日：2004-07-06
申请号：US10281324
申请日：2002-10-28
申请人： Koji Wada , Tatsuhiko Takahashi
发明人： Koji Wada , Tatsuhiko Takahashi
IPC分类号： F01L134
CPC分类号： F02D13/0234 , F01L1/34 , F02D13/0253 , F02D41/2464 , F02D41/248 , F02D2041/001 , Y02T10/18
摘要： Valve timing control apparatus for engine includes a cam phase actuator (1113) composed of a first rotor (1) rotatable with a crank shaft, a second rotor (6) mounted on a cam shaft (7) and a lock mechanism (15, 16, 18) for locking the second rotor to the first rotor, a pump (1118) for generating a hydraulic pressure, an ECU for computing a current value corresponding to a pressure for clearing a locked state at the first relative angle for shifting the first relative angle to a second angle, and an OCV (1114) for supplying a pressure for regulating a cam phase of the second rotor in dependence on the current value. The ECU computes a first current value for generating a first pressure for releasing the locked state. The first current value is supplied to the OCV for a predetermined time before shifting the first relative angle.
摘要翻译：用于发动机的气门正时控制装置包括凸轮相位致动器（1113），该凸轮相位致动器由可与曲轴一起旋转的第一转子（1）和安装在凸轮轴（7）上的第二转子（6）和锁定机构，18），用于将所述第二转子锁定到所述第一转子;泵（1118），用于产生液压; ECU，用于计算与所述第一相对角度处的第一相对角度处的用于清除锁定状态的压力相对应的电流值，以及用于根据当前值提供用于调节第二转子的凸轮相位的压力的OCV（1114）。 ECU计算用于产生用于释放锁定状态的第一压力的第一电流值。在移动第一相对角度之前，将第一电流值提供给OCV预定时间。

6. 发明授权

US07126624B2 Image recording method and image recording apparatus 失效
公开(公告)号：US07126624B2
公开(公告)日：2006-10-24
申请号：US10188365
申请日：2002-07-03
申请人： Daisuke Nakaya , Koji Wada , Katsuto Sumi , Hiroshi Sunagawa
发明人： Daisuke Nakaya , Koji Wada , Katsuto Sumi , Hiroshi Sunagawa
IPC分类号： B41J2/47
CPC分类号： H04N1/047 , G06K15/1238 , H04N1/06 , H04N1/195 , H04N2201/02416 , H04N2201/0426 , H04N2201/0471 , H04N2201/0472 , H04N2201/04729 , H04N2201/04732 , H04N2201/04755 , H04N2201/04762 , H04N2201/04789 , H04N2201/04791
摘要： The image recording method and image recording apparatus synchronize phase of a light deflector with rotation of a drum in response to the drum start point detection signal generated each time the drum rotates once, expose the two-dimensional image of one frame formed by a group of light sources disposed two-dimensionally onto the recording medium while causing the image at rest on the recording medium relatively thereto, thereafter move the optical system in the auxiliary scanning direction by an integral multiple of a pixel pitch forming one frame as well as deflect an angle of the light deflector in the main scanning direction by one frame so as to expose the next frame and on for one rotation of the drum. When the position is dislocated in the auxiliary scanning direction at the time the recording medium is to be exposed in a subsequent one rotation of the drum, the method and apparatus correct the dislocation of the position in the auxiliary scanning direction by changing an auxiliary scanning movement speed in a non-exposure time zone between the previous and subsequent rotations of the drum.Accordingly, the method and apparatus can prevent the occurrence of streaked unevenness in the surface exposure and spiral exposure.

7. 发明授权

US07052434B2 Throttle opening degree control apparatus for internal combustion engine 有权
标题翻译：用于内燃机的节气门开度控制装置
公开(公告)号：US07052434B2
公开(公告)日：2006-05-30
申请号：US10676161
申请日：2003-10-02
申请人： Hironobu Makino , Koji Wada , Kenichiro Sato
发明人： Hironobu Makino , Koji Wada , Kenichiro Sato
IPC分类号： B60W10/04 , B60W10/10
CPC分类号： F02D11/105 , F02D9/02 , F02D2200/0404 , F02D2200/602 , Y10S477/905 , Y10T477/675 , Y10T477/68
摘要： A vehicle engine is coupled to a driving system that includes a torque converter and an automatic transmission. An ECU sets a target value of an opening degree of a throttle valve based on a depression degree of an acceleration pedal. The ECU changes the throttle opening degree at a predetermined gradual change speed such that the throttle opening degree reaches the set target value. The ECU limits the gradual change speed of the throttle opening degree for a predetermined period such that a changing speed of the engine speed is suppressed at a reverse time when a direction of torque transmitted between the driving system and the engine is reversed. As a result, shock produced when the direction of torque between the driving system and the engine is switched is suppressed.
摘要翻译：车辆发动机耦合到包括变矩器和自动变速器的驱动系统。 ECU基于加速踏板的下压度来设定节气门的开度的目标值。 ECU以预定的逐渐变化速度改变节气门开度，使得节气门开度达到设定目标值。 ECU将节气门开度的逐渐变化速度限制在预定时间段内，使得在驱动系统和发动机之间传递的扭矩方向相反时，在相反的时刻抑制发动机转速的变化速度。结果，抑制了驱动系统和发动机之间的转矩方向切换时产生的冲击。

8. 发明授权

US07005194B2 Aluminum alloy member superior in corrosion resistance and plasma resistance 有权
标题翻译：耐腐蚀性和耐等离子体性优异的铝合金构件
公开(公告)号：US07005194B2
公开(公告)日：2006-02-28
申请号：US10761205
申请日：2004-01-22
申请人： Koji Wada , Jun Hisamoto
发明人： Koji Wada , Jun Hisamoto
IPC分类号： B32B3/26
CPC分类号： C25D11/04 , Y10T428/12667 , Y10T428/12736 , Y10T428/249953
摘要： An aluminum or aluminum alloy member superior in liquid and gaseous corrosion resistance and plasma resistance, which has an anodized film formed thereon which is composed of a porous layer and a non-porous barrier layer whose structure is at least partly boehmite or pseudo-boehmite. Said anodized film is characterized by that the film dissolving rate measured by the test for immersion in a mixture of phosphoric acid and chromic acid (conforming to JIS H8683-2) is less than 120 mg/dm2/15 min, the ratio of area in which corrosion occurs after standing for 2 hours in an atmosphere of argon containing 5% chlorine (at 300° C.) is less than 15%, and the hardness (Hv) of the film is no lower than 420.
摘要翻译：具有优异的液体和气体耐腐蚀性和等离子体电阻的铝或铝合金构件，其具有形成在其上的阳极化膜，其由结构至少部分勃姆石或假勃姆石的多孔层和无孔阻挡层组成。所述阳极氧化膜的特征在于，通过浸渍在磷酸和铬酸的混合物中测试的膜溶解速率（符合JIS H8683-2）小于120mg / dm 2 / 15分钟，在含有5％氯（300℃）的氩气气氛中放置2小时后发生腐蚀的面积比例小于15％，膜的硬度（Hv）不低于超过420。

9. 发明授权

US06213070B1 Control apparatus for internal combustion engine 有权
标题翻译：内燃机控制装置
公开(公告)号：US06213070B1
公开(公告)日：2001-04-10
申请号：US09531222
申请日：2000-03-20
申请人： Atsuko Hashimoto , Koji Wada , Takeshi Kawakami
发明人： Atsuko Hashimoto , Koji Wada , Takeshi Kawakami
IPC分类号： F02D1302
CPC分类号： F02D13/0215 , F02D13/0219 , F02D13/0261 , Y02T10/18
摘要： When an internal combustion engine is run at a high speed revolution, a large increase in a processing time executed every predetermined crank angle position can be suppressed, and fluctuations or variations in response characteristics can be reduced, thus enabling better valve timing control. To this end, a control apparatus for an internal combustion engine includes a variable valve timing mechanism, an actual advance amount detector for detecting an actual valve timing position every predetermined crank angle position, a target advance amount setter for setting a target valve timing based upon a detection result of the operating condition detector, a controller for controlling the variable valve timing mechanism, an advance amount deviation calculator for calculating a deviation between the target advance amount and the actual advance amount every predetermined crank angle position, a differential value calculator for calculating, every predetermined time, a deviation between a current value of advance amount deviation and a preceding value thereof, and a control amount calculator for calculating a control amount used in the controller based upon both the advance amount deviation and the differential value.
摘要翻译：当内燃机以高速旋转运行时，可以抑制每预定曲柄角位置执行的处理时间的大幅增加，并且可以降低响应特性的波动或变化，从而实现更好的气门正时控制。为此，内燃机的控制装置具有可变气门正时机构，用于检测每个预定曲柄角位置的实际气门正时位置的实际提前量检测器，用于基于以下方式设定目标气门正时的目标提前量设定器操作条件检测器的检测结果，用于控制可变气门正时机构的控制器，用于计算每个预定曲柄角位置的目标提前量与实际提前量之间的偏差的提前量偏差计算器，用于计算每个预定时间，提前量偏差的当前值与其前一值之间的偏差;以及控制量计算器，用于基于所述提前量偏差和所述微分值两者来计算在所述控制器中使用的控制量。

10. 发明授权

US5896489A Electrophotographic printer 失效
公开(公告)号：US5896489A
公开(公告)日：1999-04-20
申请号：US856010
申请日：1997-05-14
申请人： Koji Wada
发明人： Koji Wada
IPC分类号： B41J2/44 , B41J2/485 , G03G15/00 , G03G15/04 , G03G15/043 , G06K15/12 , G06T5/00 , G06T5/30 , H04N1/409 , G06K9/40 , G06K9/44 , G06K15/14
CPC分类号： G06K15/1223 , G06K15/128 , G06K2215/006
摘要： An electrophotographic printer including feature extraction means 12 for judging on the basis of pattern matching whether a reference area generated by area generating means 11 is an image which should be subjected to smoothing processing, and detecting the gradient of a contour portion of the image when the image is judged to be subjected to the smoothing processing, resolution enhancing means 13 for subdividing each pixel in the reference area generated by the area generating means 11 into small areas in accordance with the extraction result of the feature extraction means 12 to thereby perform resolution enhancing correction processing, density calculation means 15 for calculating the density of an overall selected area of the corrected pixels generated by the resolution-enhancing means 13 on the basis of the respective pixel values of the selected area, center-of-gravity calculation means 16 for calculating the center of gravity of an overall selected area of the corrected pixels generated by the resolution-enhancing means 13 on the basis of the respective pixel values of the selected area, and characteristic correction means 17 for correcting the density and the center of gravity calculated by the density calculation means 15 and the center-of-gravity calculation means 16 in accordance with preset input/output characteristic information of the engine.

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