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    • 1. 发明授权
    • Valve timing control system for internal combustion engine
    • 内燃机气门正时控制系统
    • US06283074B1
    • 2001-09-04
    • US09432794
    • 1999-11-03
    • Tatsuhiko TakahashiSatoshi WachiAtsuko HashimotoHirofumi Ohuchi
    • Tatsuhiko TakahashiSatoshi WachiAtsuko HashimotoHirofumi Ohuchi
    • F02D1302
    • F02D13/0219F02D13/0238F02D13/0261F02D2013/0292Y02T10/18
    • A valve timing control system for an internal combustion engine, comprising a required advance amount calculating section for calculating a required advance amount on the basis of operating condition of the engine, a valve timing control section for calculating a valve timing control variable on the basis of an obtained advance amount and the required advance amount calculated by the required advance amount calculating section, and a time period measuring section for measuring an elapsed time after the start of the engine. The required advance amount calculating section makes a calculation so that the required advance amount assumes a value smaller than that in an normal state until the time period measuring section measures a predetermined period of time. Hence, exhaust gas clarification immediately after the engine start, fuel consumption and drivability can be improved.
    • 一种用于内燃机的气门正时控制系统,包括:用于根据发动机运行状态计算所需提前量的所需提前量计算部分,用于根据发动机运转状态计算气门正时控制变量的气门正时控制部分 获得的提前量和由所需提前量计算部计算出的所需提前量,以及用于测量发动机起动之后经过时间的时间段测量部。 所需的提前量计算部进行计算,使得所需的提前量假定比正常状态下的值小,直到时间段测量部测量预定时间段为止。 因此,可以提高发动机起动后的排气净化,燃料消耗和驾驶性能的提高。
    • 3. 发明授权
    • Engine controlling apparatus for an automotive engine
    • 用于汽车发动机的发动机控制装置
    • US6092505A
    • 2000-07-25
    • US47462
    • 1998-03-25
    • Tatsuhiko TakahashiShiro YonezawaSatoshi WachiAtsuko HashimotoHirofumi Ohuchi
    • Tatsuhiko TakahashiShiro YonezawaSatoshi WachiAtsuko HashimotoHirofumi Ohuchi
    • F02D9/02F02D11/10F02D31/00F02D41/02F02D41/22F02D7/00F02D41/00
    • F02D31/005F02D11/107
    • An engine controlling apparatus is provided in which a stable limp-home drive is possible even if an open breakdown of a throttle valve occurs. The apparatus includes a throttle breakdown detecting unit S1 for detecting the breakdown in a throttle controlling system including the throttle valve and a throttle opening degree sensor, a throttle power source interrupting unit S2 for interrupting a power source supply to a throttle actuator in the case where the breakdown in the throttle controlling system is detected, and a predetermined operational condition detecting unit S3 for detecting a shift of the operational condition to a predetermined operational condition corresponding to a fully closed condition of the throttle valve in operation of the throttle power source interrupting unit. A bypass controlling unit S4 opens the bypass valve to feed the air to the engine at the time when the predetermined operational condition is detected in operation of the throttle power source interrupting unit.
    • 提供了一种发动机控制装置,其中即使节流阀的打开故障发生,也可以进行稳定的跛行驱动。 该装置包括用于检测包括节流阀和节气门开度传感器的节气门控制系统的故障的节气门击发检测单元S1,用于中断向节流阀致动器供电的节气门电源中断单元S2, 检测节气门控制系统的故障,以及预定操作条件检测单元S3,用于在节气门电源中断单元的操作中检测操作状态与对应于节气门的完全关闭状态的预定操作条件的移动 。 旁路控制单元S4在节气门电源中断单元的操作中检测到​​预定操作条件时打开旁通阀以将空气供给到发动机。
    • 5. 发明授权
    • Valve timing control system for internal combustion engine
    • 内燃机气门正时控制系统
    • US06494173B2
    • 2002-12-17
    • US09888378
    • 2001-06-26
    • Tatsuhiko TakahashiAtsuko HashimotoHirofumi Ohuchi
    • Tatsuhiko TakahashiAtsuko HashimotoHirofumi Ohuchi
    • F01L134
    • F01L1/3442F01L1/34F01L2001/34426
    • 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 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 retarded in an engine state succeeding to the starting operation.
    • 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力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到锁定位置,同时在开始操作之后控制发动机状态下的相位相位。
    • 8. 发明授权
    • Control device for internal combustion engine
    • 内燃机控制装置
    • US06213067B1
    • 2001-04-10
    • US09439280
    • 1999-11-15
    • Tatsuhiko TakahashiTakeshi KawakamiAtsuko HashimotoHirofumi Ohuchi
    • Tatsuhiko TakahashiTakeshi KawakamiAtsuko HashimotoHirofumi Ohuchi
    • F02B7708
    • F02D13/0238F01L1/34F01L1/46F02B2275/18F02D13/0261F02D41/009F02D41/365F02D2041/001Y02T10/18
    • A control device for an internal combustion engine includes a crank angle detecting device, which detects the crank angle of the internal combustion engine; a cam angle detecting device, which is installed in a variable cam shaft which variably rotates with respect to a crank shaft and detects a cam angle; a device for generating a cylinder identifying signal, which is separately located from the cam angle detector and generates the cylinder identifying signal, which identifies cylinders of the internal combustion engine; a device for varying valve timing, which varies the cam angle with respect to the crank angle; a valve timing controller, which controls the varying valve timing device; and a mechanism for controlling the internal combustion engine even when the cam angle detecting device is troubled because a control of supplying fuel and igniting is based on an identification of the cylinders by a signal from the device for generating the cylinder identifying signal.
    • 用于内燃机的控制装置包括检测内燃机的曲柄角的曲柄角检测装置; 凸轮角度检测装置,其安装在相对于曲轴可变地旋转并检测凸轮角度的可变凸轮轴中; 用于产生气缸识别信号的装置,其与所述凸轮角度检测器分开定位并产生识别所述内燃机的气缸的气缸识别信号; 用于改变相对于曲柄角度的凸轮角度的气门正时的装置; 阀门正时控制器,其控制变化的气门正时装置; 以及即使当由于来自用于产生气缸识别信号的装置的信号的气缸的识别而提供燃料和点燃的控制时,即使当凸轮角度检测装置发生故障时,也控制内燃机的机构。