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    • 1. 发明授权
    • Evaporative emission control system for internal combustion engines
    • 内燃机蒸发排放控制系统
    • US5570674A
    • 1996-11-05
    • US562368
    • 1995-11-22
    • Atsushi IzumiuraTakashi IsobeHiroshi Yatani
    • Atsushi IzumiuraTakashi IsobeHiroshi Yatani
    • F02B77/08F02M25/08F02D41/22
    • F02M25/0809
    • An evaporative emission control system for an internal combustion engine has a purge control valve arranged in a purging passage connecting between a canister and an intake passage of the engine. The evaporative emission control system has a self-diagnosis function of determining whether the evaporative fuel emission control system is normal or abnormal from a change in a value of a parameter measured based on an output from an exhaust gas component concentration sensor arranged in an exhaust passage of the engine, which change is detected when the opening of the purge control value is changed, and a variation in pressure within the intake passage at a location downstream of a throttle valve arranged therein when the opening of the purge control valve is changed.
    • 用于内燃机的蒸发排放控制系统具有布置在连接在发动机的罐和进气通道之间的清洗通道中的清洗控制阀。 蒸发排放控制系统具有自诊断功能,该功能是根据布置在排气通道中的排气成分浓度传感器的输出而测定的参数值的变化来判定蒸发燃料排放控制系统是正常还是异常 发动机的开启时,当清洗控制值的打开被改变时检测到变化,以及当清洗控制阀的打开被改变时在其中布置在其中的节流阀下游的位置处的进气通道内的压力变化。
    • 3. 发明授权
    • Evaporative fuel-processing system for internal combustion engines
    • 内燃机蒸发燃料处理系统
    • US5765539A
    • 1998-06-16
    • US832190
    • 1997-04-08
    • Takashi IsobeHiroshi Yatani
    • Takashi IsobeHiroshi Yatani
    • F02M25/08F02M27/04
    • F02M25/0809
    • An evaporative fuel-processing system for an internal combustion engine includes a canister, a charging passage extending between the canister and a fuel tank, a purging passage extending between the canister and the intake system of the engine, an open-to-atmosphere passage for relieving the interior of the canister to the atmosphere, a charge control valve for opening and closing the charging passage, a purge control valve for opening and closing the purging passage, a vent shut valve for opening and closing the open-to-atmosphere passage, and a pressure sensor for detecting pressure within the charging passage. When the engine is in a predetermined operating condition, the interior of the fuel tank is negatively pressurized into a predetermined negatively pressurized state by opening the purge control valve and the charge control valve and closing the vent shut valve. When a predetermined time period has elapsed from the start of the negative pressurization before the interior of the fuel tank is set to the predetermined negatively pressurized state, the purge control valve and the charge control valve are closed, and an abnormality of the fuel tank is determined based on the pressure detected by the pressure sensor immediately before and after the closing of the purge control valve and the charge control valve.
    • 用于内燃机的蒸发燃料处理系统包括罐,在罐和燃料箱之间延伸的充气通道,在罐和发动机的进气系统之间延伸的清洗通道,用于 将罐的内部释放到大气中,用于打开和关闭充电通道的充电控制阀,用于打开和关闭清洗通道的清洗控制阀,用于打开和关闭大气开放通道的排气关闭阀, 以及用于检测充电通道内的压力的压力传感器。 当发动机处于预定操作状态时,通过打开净化控制阀和充气控制阀并关闭排气关闭阀,使燃料箱的内部被负压地加压到预定的负压状态。 在将燃料箱内部设定为预定的负压状态之前从负压力开始经过规定时间后,清除控制阀和充气控制阀关闭,燃料箱的异常为 基于在清洗控制阀和充气控制阀关闭之前和之后由压力传感器检测的压力确定。
    • 4. 发明申请
    • STOP CONTROL SYSTEM AND METHOD FOR INTERNAL COMBUSTION ENGINE
    • 内燃机停止控制系统及方法
    • US20120130619A1
    • 2012-05-24
    • US13384744
    • 2010-07-30
    • Tomoharu HozumiAtsushi MitsuiTakeshi AokiHiroshi YataniKazuhiko Imamura
    • Tomoharu HozumiAtsushi MitsuiTakeshi AokiHiroshi YataniKazuhiko Imamura
    • F02D17/04
    • F02D41/042F02D41/0002F02D41/10F02N19/005F02N2019/008
    • A stop control system for an internal combustion engine, which is capable of accurately stopping a piston at a predetermined position during stoppage of the engine while preventing occurrence of untoward noise and vibration. After stopping the engine 3, the stop control system 1 for the engine 3 according to the present invention executes a first stage control (step 34) in which a throttle valve 13a is controlled to a first stage control target opening degree ICMDOFPRE smaller than a second predetermined opening degree ICMDOF2, in order to stop the piston at the predetermined position, before executing a second stage control (step 42) in which the throttle valve 13a is controlled to the second predetermined opening degree ICMDOF2. Further, the stop control system 1 stabilizes initial conditions at the start of the second stage control by setting a first stage control start rotational speed NEICOFPRE and a first stage control target opening degree ICMDOFPRE according to a change in a corrected target stop control start rotational speed NEICOFREFN (steps 71 and 85).
    • 一种用于内燃机的停止控制系统,其能够在发动机停止期间精确地停止在预定位置处的活塞,同时防止发生不利的噪音和振动。 在停止发动机3之后,根据本发明的发动机3的停止控制系统1执行第一级控制(步骤34),其中节流阀13a被控制到小于第二级的第一级控制目标开度ICMDOFPRE 在执行将节气门13a控制到第二预定开度ICMDOF2的第二级控制(步骤42)之前,为了将活塞停止在预定位置,预定开度ICMDOF2。 此外,停止控制系统1通过根据修正的目标停止控制开始转动的变化设定第一级控制开始转速NEICOFPRE和第一级控制对象开度ICMDOFPRE来稳定第二级控制开始时的初始状态 NEICOFREFN(步骤71和85)。
    • 9. 发明授权
    • Ignition timing control system and method, and engine control unit for internal combustion engine
    • 点火正时控制系统及方法,内燃机发动机控制装置
    • US06745119B2
    • 2004-06-01
    • US10218664
    • 2002-08-15
    • Tetsuya OhnoHiroshi YataniTatsuya ShirakiYoshihiro Katagiri
    • Tetsuya OhnoHiroshi YataniTatsuya ShirakiYoshihiro Katagiri
    • F02D515
    • F02P5/1504F02P5/045Y02T10/46Y10T477/679
    • An ignition timing control system and method, and an engine control unit for an internal combustion engine, which are capable of setting optimum timing for execution of retardation of ignition timing when a vehicle on which the engine is installed is accelerated, thereby effectively reducing longitudinal vibrations of the vehicle, and maintaining acceleration performance. An acceleration demand-detecting module detects a demand of acceleration of the engine. A rotational speed-detecting module detects a rotational speed of the engine. A rotational variation amount-calculating module calculates a variation amount of the rotational speed of the engine. A rotational variation amount differential value-calculating module calculates a differential value of the variation amount of the rotational speed of the engine. A retard amount-calculating module calculates a retard amount for retarding the ignition timing. A retardation execution module executes retardation of the ignition timing by the retard amount on predetermined conditions.
    • 一种点火正时控制系统和方法以及用于内燃机的发动机控制单元,其能够设置当安装有发动机的车辆时点火正时的延迟的执行的最佳定时,从而有效地减少纵向振动 的车辆,并保持加速性能。 加速度需求检测模块检测发动机的加速要求。 转速检测模块检测发动机的转速。 旋转变化量计算模块计算发动机的转速的变化量。 旋转变化量差分值计算模块计算发动机的转速变化量的差分值。 延迟量计算模块计算用于延迟点火正时的延迟量。 延迟执行模块在预定条件下执行点火正时的延迟量。
    • 10. 发明授权
    • Stop control system and method for internal combustion engine
    • 内燃机停机控制系统及方法
    • US08812221B2
    • 2014-08-19
    • US13384744
    • 2010-07-30
    • Tomoharu HozumiAtsushi MitsuiTakeshi AokiHiroshi YataniKazuhiko Imamura
    • Tomoharu HozumiAtsushi MitsuiTakeshi AokiHiroshi YataniKazuhiko Imamura
    • B60T7/12
    • F02D41/042F02D41/0002F02D41/10F02N19/005F02N2019/008
    • A stop control system for an internal combustion engine, which is capable of accurately stopping a piston at a predetermined position during stoppage of the engine while preventing occurrence of untoward noise and vibration. After stopping the engine 3, the stop control system 1 for the engine 3 according to the present invention executes a first stage control (step 34) in which a throttle valve 13a is controlled to a first stage control target opening degree ICMDOFPRE smaller than a second predetermined opening degree ICMDOF2, in order to stop the piston at the predetermined position, before executing a second stage control (step 42) in which the throttle valve 13a is controlled to the second predetermined opening degree ICMDOF2. Further, the stop control system 1 stabilizes initial conditions at the start of the second stage control by setting a first stage control start rotational speed NEICOFPRE and a first stage control target opening degree ICMDOFPRE according to a change in a corrected target stop control start rotational speed NEICOFREFN (steps 71 and 85).
    • 一种用于内燃机的停止控制系统,其能够在发动机停止期间精确地停止在预定位置处的活塞,同时防止发生不利的噪音和振动。 在停止发动机3之后,根据本发明的发动机3的停止控制系统1执行第一级控制(步骤34),其中节流阀13a被控制到小于第二级的第一级控制目标开度ICMDOFPRE 在执行将节气门13a控制到第二预定开度ICMDOF2的第二级控制(步骤42)之前,为了将活塞停止在预定位置,预定开度ICMDOF2。 此外,停止控制系统1通过根据修正的目标停止控制开始转动的变化设定第一级控制开始转速NEICOFPRE和第一级控制对象开度ICMDOFPRE来稳定第二级控制开始时的初始状态 NEICOFREFN(步骤71和85)。