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    • 2. 发明授权
    • Method of fuel injection control during starting
    • 起动时燃油喷射控制方法
    • US4266521A
    • 1981-05-12
    • US31478
    • 1979-04-19
    • Jiro NakanoHideo Miyagi
    • Jiro NakanoHideo Miyagi
    • F02D41/34F02D41/06F02D41/10F02D41/26F02D45/00F02B3/00
    • F02D41/062F02D41/26
    • In conventional electronic fuel injection systems, the flow rate of a fuel supply is fixed during a starting operation irrespective of time variations in the running parameters of an internal combustion engine. In accordance with the disclosed method and apparatus of the invention, however, the fuel supply flow rate is controlled in accordance with the time variations in the engine running parameters in the same manner as occurs after the starting operation, that is, during normal engine running operations, when at least one of the engine operating conditions of r.p.m. being higher than a preset level and flow rate of intake air being higher than a preset level is satisfied. Thus, the engine running operations either at a higher engine r.p.m. or at a higher intake air flow rate during the engine starting period can be stabilized while improving the engine startability and smoothing the engine running operations when an ignition switch is returned from its starting to its "on" position.
    • 在传统的电子燃料喷射系统中,燃料供给的流量在启动操作期间是固定的,而与内燃机的运行参数的时间变化无关​​。 然而,根据本发明的公开的方法和装置,燃料供给流量根据发动机运转参数的时间变化以与启动操作之后相同的方式来控制,即在正常的发动机运行期间 当至少有一个发动机工作条件为rpm时 高于预设水平,并且进气的流量高于预设水平。 因此,发动机运行操作在较高的发动机r.p.m。 或者在发动机起动期间以较高的进气流量可以稳定,同时在点火开关从其起始位置返回到其“开”位置的同时提高发动机起动性和平滑发动机运行操作。
    • 5. 发明授权
    • Method and apparatus for controlling the air-fuel ratio in an internal
combustion engine
    • 用于控制内燃机中的空燃比的方法和装置
    • US4392471A
    • 1983-07-12
    • US296241
    • 1981-08-24
    • Hideo MiyagiJiro Nakano
    • Hideo MiyagiJiro Nakano
    • F02D41/34F02D41/14F02D41/18F02B3/00
    • F02D41/1491F02D41/182
    • The amount of fuel supplied to the engine is corrected in accordance with an air-fuel ratio correction coefficient. When the engine is in a predetermined first operating condition, the correction coefficient is calculated depending upon the detected concentration of a predetermined component in the exhaust gas, and thus the above correction is performed by closed-loop control. When the engine is not in the first operating condition, the correction coefficient is fixed, and thus the above correction is performed by open-loop control. An average value of the calculated correction coefficient is calculated only when the engine is in a predetermined second operating condition. An initial value of the air-fuel ratio correction coefficient when closed-loop control is resumed is determined to be the calculated average value.
    • 根据空燃比校正系数校正供给发动机的燃料量。 当发动机处于预定的第一运行状态时,根据检测到的废气中的预定成分的浓度来计算校正系数,由此通过闭环控制进行上述的校正。 当发动机不处于第一运行状态时,校正系数是固定的,因此通过开环控制执行上述校正。 仅当发动机处于预定的第二操作状态时才计算出所计算的校正系数的平均值。 将闭环控制恢复时的空燃比校正系数的初始值确定为计算出的平均值。