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    • 2. 发明申请
    • Cylinder identification device for internal combustion engine
    • 内燃机气缸识别装置
    • US20050212509A1
    • 2005-09-29
    • US11090792
    • 2005-03-25
    • Hidehiko Asama
    • Hidehiko Asama
    • G01B21/00F02D35/00F02D41/06F02D45/00G01B7/14G01B21/22G01D5/249G01M15/00
    • G01D5/2492
    • A cylinder identification device has an intake cam sensor and an exhaust cam sensor which output signals indicative of a rotation angle of the camshaft. The levels of the output signals are varied according to the rotation angle of the crankshaft. The cylinder identification is conducted based on an order of combination variation of the output signal levels. The changing positions of the output signal levels of at least one of the intake cam sensor and the exhaust cam sensor are arranged in such a manner to correspond to positions or right before positions in which the fuel can be initially injected at the time of the engine starting. Thus, the cylinder identification device can identify the initial cylinder in a short period, into which the fuel is initially injected at the time of the engine starting, whereby the startability of the engine is enhanced.
    • 气缸识别装置具有进气凸轮传感器和输出表示凸轮轴的旋转角度的信号的排气凸轮传感器。 输出信号的电平根据曲轴的旋转角度而变化。 圆筒识别基于输出信号电平的组合变化顺序进行。 进气凸轮传感器和排气凸轮传感器中的至少一个的输出信号电平的变化位置被布置成对应于在发动机时可以最初喷射燃料的位置之前的位置 开始。 因此,气缸识别装置可以在发动机起动时初始喷射燃料的短时间内识别初始气缸,从而提高发动机的起动性。
    • 4. 发明授权
    • Fuel supply amount controller for internal combustion engine
    • 内燃机燃油供应量控制器
    • US06367455B2
    • 2002-04-09
    • US09766612
    • 2001-01-23
    • Yasuo HirataHidehiko Asama
    • Yasuo HirataHidehiko Asama
    • F02M3704
    • F02D41/042F02D41/3082F02D2041/225
    • A pump control means controls a fuel pump so that fuel pressure supplied into the internal combustion engine becomes lower than a predetermined fuel pressure regulated by a fuel pressure regulator when the operating state of the internal combustion engine is within a predetermined operating state. Thus, the fuel pressure has already been controlled low while the engine state is within the predetermined operating state, so that the fuel leak from the injector during an engine stop is suppressed, thereby reducing an exhaust of deleterious gas when the engine starts again. Further, since the fuel pressure is decreased while the engine works, electric power is not wasted for decreasing the fuel pressure.
    • 泵控制装置控制燃料泵,使得当内燃机的运行状态处于预定运行状态时,供给内燃机的燃料压力低于由燃料压力调节器调节的预定燃料压力。 因此,当发动机状态处于预定的运行状态时,燃料压力已经被控制得较低,从而抑制了在发动机停止期间从喷射器泄漏的燃料,从而在发动机再次起动时减少有害气体的排气。 此外,由于在发动机工作时燃料压力降低,因此不会浪费电力来降低燃料压力。
    • 5. 发明授权
    • Compensation method and apparatus for fuel injection amount during
engine warm-up
    • 发动机预热期间燃油喷射量的补偿方法和装置
    • US5507265A
    • 1996-04-16
    • US459779
    • 1995-06-02
    • Yasuhisa IchikawaHidehiko Asama
    • Yasuhisa IchikawaHidehiko Asama
    • F02D41/04F02D41/06
    • F02D41/061F02D41/068
    • In a method and apparatus which compensates a fuel injection amount by a first fuel enrichment coefficient dependent on an engine coolant temperature during engine warm-up period after engine starting, the fuel injection amount is compensated further by a second fuel enrichment coefficient from a time an engine revolution speed falls until a time a predetermined interval lapses. The second fuel enrichment coefficient may be changed by a throttle valve opening condition and/or an engine intake air pressure. The fuel injection amount may be further compensated further by a third fuel enrichment coefficient until a time another predetermined interval shorter than the predetermined interval lapses, when a fall of the engine revolution speed is large.
    • 在根据发动机起动后的发动机预热期间依赖于发动机冷却剂温度的第一燃料浓缩系数来补偿燃料喷射量的方法和装置中,燃料喷射量从第二燃料浓缩系数进一步补偿 发动机转速下降直至经过预定间隔的时间。 第二燃料浓缩系数可以通过节气门打开状态和/或发动机进气压力而改变。 当发动机转速下降较大时,可以通过第三燃料浓缩系数进一步补偿燃料喷射量,直到比预定间隔短的另一预定间隔的时间间隔过去。
    • 6. 发明申请
    • CONTROLLER FOR INTERNAL COMBUSTION ENGINE
    • 内燃机控制器
    • US20090105931A1
    • 2009-04-23
    • US12252528
    • 2008-10-16
    • Hidehiko Asama
    • Hidehiko Asama
    • F02D41/30
    • F02D41/0025F02D19/084F02D19/088F02D41/0082F02D41/062F02D41/2454F02D2200/0612Y02T10/36
    • A computer determines whether fuel is supplied to the fuel tank while the engine is stopped. When Yes, an injection quantity varying control is performed immediately after the engine is started in which the fuel injection quantity is varied with respect to each cylinder by correcting the fuel injection quantity by use of the air-fuel-ratio learning correction value that is learned in the previous engine operation and a varying correction value which is particular value with respect to each cylinder. The computer determines a combustion condition in each cylinder (for example, a fluctuation in rotational speed in each cylinder), and computes the varying correction value which is appropriate for the supplied fuel. The air-fuel-ratio learning correction value is computed based on the varying correction value.
    • 计算机确定在发动机停止时燃料是否被供应到燃料箱。 “是”时,通过利用被学习的空燃比学习校正值来校正燃料喷射量,在发动机启动后立即执行喷射量变化控制,其中燃料喷射量相对于每个气缸变化 在先前的发动机操作中和相对于每个气缸具有特定值的变化的校正值。 计算机确定每个气缸中的燃烧状态(例如,每个气缸中的转速的波动),并且计算适合所供应的燃料的变化的校正值。 基于变化的校正值来计算空燃比学习校正值。
    • 7. 发明授权
    • Cylinder identification device for internal combustion engine
    • 内燃机气缸识别装置
    • US07082362B2
    • 2006-07-25
    • US11090792
    • 2005-03-25
    • Hidehiko Asama
    • Hidehiko Asama
    • G06F17/00G01B7/30F02D41/06
    • G01D5/2492
    • A cylinder identification device has an intake cam sensor and an exhaust cam sensor which output signals indicative of a rotation angle of the camshaft. The levels of the output signals are varied according to the rotation angle of the crankshaft. The cylinder identification is conducted based on an order of combination variation of the output signal levels. The changing positions of the output signal levels of at least one of the intake cam sensor and the exhaust cam sensor are arranged in such a manner to correspond to positions or right before positions in which the fuel can be initially injected at the time of the engine starting. Thus, the cylinder identification device can identify the initial cylinder in a short period, into which the fuel is initially injected at the time of the engine starting, whereby the startability of the engine is enhanced.
    • 气缸识别装置具有进气凸轮传感器和输出表示凸轮轴的旋转角度的信号的排气凸轮传感器。 输出信号的电平根据曲轴的旋转角度而变化。 圆筒识别基于输出信号电平的组合变化顺序进行。 进气凸轮传感器和排气凸轮传感器中的至少一个的输出信号电平的变化位置被布置成对应于在发动机时可以最初喷射燃料的位置之前的位置 开始。 因此,气缸识别装置可以在发动机起动时初始喷射燃料的短时间内识别初始气缸,从而提高发动机的起动性。