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    • 43. 发明授权
    • Valve timing control apparatus for internal combustion engine
    • 内燃机气门正时控制装置
    • US06758176B2
    • 2004-07-06
    • US10281324
    • 2002-10-28
    • Koji WadaTatsuhiko Takahashi
    • Koji WadaTatsuhiko Takahashi
    • F01L134
    • F02D13/0234F01L1/34F02D13/0253F02D41/2464F02D41/248F02D2041/001Y02T10/18
    • 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.
    • 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。
    • 44. 发明授权
    • Valve timing control apparatus for internal combustion engines
    • 内燃机气门正时控制装置
    • US06386158B1
    • 2002-05-14
    • US09859814
    • 2001-05-18
    • Tatsuhiko Takahashi
    • Tatsuhiko Takahashi
    • F01L134
    • F02D13/0238F01L1/34F02D13/0261Y02T10/18
    • A valve timing control apparatus for internal combustion engines, capable of obtaining a stable responsibility, and correcting a scatter of the characteristics of the apparatus and the variation thereof occurring with the lapse of time is provided. A valve timing control apparatus is provided with a valve opening and closing cam adapted to be driven by a crankshaft of an internal combustion engine, a valve timing varying means adapted to vary a rotational phase between the (cam and crankshaft, a detector adapted to detect an acting position of the valve timing varying means, and a control means adapted to output a control variable with respect to the valve timing varying means, the control means storing normative characteristics of the valve timing varying means, computing a target valve timing position, comparing a valve timing position detected by the acting position detector and a valve timing position of the normative characteristics with each other with respect to a target valve timing position, and determining a control variable with respect to the valve timing varying means on the basis of the results of the comparison.
    • 提供了能够获得稳定的责任的内燃机的气门正时控制装置,以及随着时间的推移校正装置的特性和其变化的散射。 气门正时控制装置设有适于由内燃机的曲轴驱动的阀门和关闭凸轮,适于改变(凸轮和曲轴,适于检测的检测器的检测器)之间的旋转相位的气门正时改变装置 气门正时改变装置的作用位置,以及适于输出相对于气门正时变化装置的控制变量的控制装置,所述控制装置存储气门正时变化装置的规范特性,计算目标气门正时位置,比较 由作用位置检测器检测到的气门正时位置和相对于目标气门正时位置的规范特性的气门正时位置,以及根据结果确定相对于气门正时变化装置的控制变量 的比较。
    • 45. 发明授权
    • Fuel supply control system for an automotive engine
    • 用于汽车发动机的燃油供应控制系统
    • US5469831A
    • 1995-11-28
    • US339194
    • 1994-11-10
    • Tatsuhiko Takahashi
    • Tatsuhiko Takahashi
    • F02D19/08F02D35/00F02D41/00F02D41/14F02D41/24F02D45/00G01N27/409F02D41/16
    • F02D41/249F02D19/061F02D19/0649F02D19/088F02D35/00F02D41/0025F02D2200/0612Y02T10/36
    • A fuel supply control system for an automotive engine determines a property of the fuel, such as the fifty percent distillation temperature T.sub.50 thereof, and the fuel injectors of the engine are controlled in accordance with the determined fuel property. When the engine is idling and the coolant water temperature WT of the engine is decreasing, the amplitude X of the feedback correction factor K.sub.2 for proportional-plus-integral control action is measured a number of times, and an average amplitude X.sub.0 thereof is calculated. The property of said fuel is determined on the basis of the thus calculated average amplitude X.sub.0 and the coolant water temperature WT using a two-dimensional map which gives the value of T.sub.50 as a function of the amplitude X of the feedback correction factor K.sub.2 and the coolant water temperature WT. The thus determined index T.sub.50 is stored in a RAM backed up by a battery. When a new fuel is supplied to the fuel tank, the value of index T.sub.50 is cleared to determine the index afresh.
    • 用于汽车发动机的燃料供应控制系统确定燃料的性质,例如其百分之五十的蒸馏温度T50,并且根据确定的燃料性质来控制发动机的燃料喷射器。 当发动机怠速并且发动机的冷却水温度WT降低时,对于比例积分控制动作的反馈校正系数K2的振幅X进行多次测量,并且计算其平均振幅X 0。 基于这样计算的平均振幅X 0和冷却水温度WT,使用给出作为反馈校正系数K2的振幅X的函数T50的二维图来确定所述燃料的性质, 冷却水温度WT。 由此确定的索引T50存储在由电池备份的RAM中。 当向燃料箱供给新的燃料时,清除指标值T50以重新确定指标。
    • 47. 发明授权
    • Control device for an internal combustion engine
    • 内燃机控制装置
    • US07484497B2
    • 2009-02-03
    • US11966199
    • 2007-12-28
    • Shinji WatanabeToru TanakaTatsuhiko Takahashi
    • Shinji WatanabeToru TanakaTatsuhiko Takahashi
    • F02D13/00F01L9/02
    • F02D41/1482F01L1/34F01L1/3442F01L2001/34426F01L2800/00F02D13/0215F02D35/025F02D41/009F02D41/064F02D2041/001
    • Provided is a control device for an internal combustion engine, including a crank angle sensor, a cam angle sensor, a real phase angle detector for detecting a real phase angle of a cam shaft based on a detection signal of the sensors, a target phase angle setting unit including a temperature parameter and battery voltage, for setting a target phase angle of the cam shaft based on an operating state of the internal combustion engine, and a phase angle feedback control unit for conducting feedback control operation so that the real phase angle coincides with the target phase angle, and for calculating an operation quantity to a hydraulically controlled solenoid valve, in which the feedback control unit sets an integral term initial value when starting the feedback control operation according to the temperature parameter, corrects a control correction quantity by the battery voltage, and outputs the operation quantity to the solenoid valve.
    • 提供一种用于内燃机的控制装置,包括曲柄角传感器,凸轮角度传感器,用于基于传感器的检测信号来检测凸轮轴的实际相位角的实际相位角检测器,目标相位角 设置单元,其包括温度参数和电池电压,用于基于内燃机的运行状态来设定凸轮轴的目标相位角;以及相位角反馈控制单元,用于进行反馈控制操作,使得实际相位角一致 与目标相位角相对应,并且用于计算到液压控制电磁阀的操作量,其中当根据温度参数启动反馈控制操作时,反馈控制单元设置积分项初始值,由控制校正量校正控制校正量 电池电压,并将操作量输出到电磁阀。
    • 49. 发明授权
    • Valve timing control system for an internal combustion engine
    • 内燃机气门正时控制系统
    • US06802286B2
    • 2004-10-12
    • US10421871
    • 2003-04-24
    • Morio FujiwaraTatsuhiko TakahashiKoji Wada
    • Morio FujiwaraTatsuhiko TakahashiKoji Wada
    • F01L134
    • F01L1/34F01L1/3442F01L2001/34469F02D2041/001F02D2200/023
    • 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.
    • 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。
    • 50. 发明授权
    • Apparatus for identification of cylinders in an internal combustion engine
    • 用于识别内燃机中的气缸的装置
    • US06776033B2
    • 2004-08-17
    • US10307939
    • 2002-12-03
    • Yasuyoshi HoriShiro YonezawaAkira FurutaHideki HagariTatsuhiko Takahashi
    • Yasuyoshi HoriShiro YonezawaAkira FurutaHideki HagariTatsuhiko Takahashi
    • G01M1500
    • G01M15/06
    • A cylinder identifying apparatus has a generator which generates a cylinder discrimination signal, a generator which generates a crank angle position signal, and a control unit which obtains the number of detections of the crank angle position signal, the number of detections of the cylinder discrimination signal, the number of detections of the crank angle position signal at the time of detection of the cylinder discrimination signal, etc. The control unit sets a cylinder discrimination period B35° to B75° CA if the present reference crank position is a first-time detection result after startup, sets a cylinder discrimination period B75° to B75° CA if the present reference crank position is a second-time or some other subsequent detection result, obtains the number of detections of the cylinder discrimination signal, and identifies a cylinder on the basis of the number of pulse dropouts and the number of detections of the cylinder discrimination signal.
    • 气缸识别装置具有产生气缸判别信号的发电机,产生曲柄角位置信号的发电机,以及获取曲柄角位置信号的检测次数,气缸识别信号的检测次数的控制单元 ,检测气缸识别信号时的曲柄角位置信号的检测次数等。如果本参考曲柄位置是第一次检测,则控制单元将气缸鉴别周期B35°设定为B75°CA 启动后的结果,如果本参考曲柄位置是第二次或其他后续检测结果,则将气缸鉴别周期B75°设置为B75°CA,获得气缸鉴别信号的检测次数,并且识别 脉冲丢失次数的基数和气缸判别信号的检测次数。