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    • 4. 发明授权
    • Control apparatus for direct injection spark ignition type internal
combustion engine
    • 直喷式火花点火式内燃机控制装置
    • US5979397A
    • 1999-11-09
    • US106762
    • 1998-06-30
    • Kenichi MachidaJunichi FuruyaHiraku OhbaYuki NakajimaTakamasa Ueda
    • Kenichi MachidaJunichi FuruyaHiraku OhbaYuki NakajimaTakamasa Ueda
    • F02B17/00F02B75/12F02D41/02F02D41/04F02D41/30F02D41/34F02D41/40
    • F02D41/402F02D41/3023F02B2075/125F02D2041/389Y02T10/123Y02T10/44
    • The present invention aims at preventing such a situation that anyone of the divided injection amounts becomes less than a minimum compensation amount for a fuel injection valve, in case of conducting a two-step injection (weakly stratified combustion) in which a part of fuel is injected during intake stroke and the remaining fuel is injected during compression stroke. To this end, at the time of instructing to conduct the two-step injection, a whole injection amount TI is divided into: an injection amount TIH for homogeneous combustion to be injected during intake stroke, and an injection amount TIS for stratified combustion to be injected during compression stroke, based on a division ratio corresponding to a target air-fuel ratio. Further, each of the injection amounts TIH and TIS after division is compared with a minimum compensation amount MIN for the fuel injection valve. Based on the result of the comparison, the injection amount, which has a smaller division ratio, is set to be zero, and the injection amount, which has a larger division ratio, is set to be the whole injection amount TI, when either one of the injection amounts TIH and TIS is judged to be less than the minimum compensation amount MIN. Alternatively, the injection amount, which has the smaller division ratio, is set to be the minimum compensation amount MIN, and the injection amount, which has the larger division ratio, is set to be the remainder obtained by subtracting the minimum compensation amount MIN from the whole injection amount TI.
    • 本发明的目的是防止在燃料的一部分进行两步喷射(弱分层燃烧)的情况下,分割喷射量的任何一方都变得小于燃料喷射阀的最小补偿量的情况 在进气冲程期间喷射并且在压缩冲程期间喷射剩余的燃料。 为此,在进行两步喷射的指示时,整个喷射量TI被分为:在进气冲程期间要喷射的均匀燃烧的喷射量TIH和用于分层燃烧的喷射量TIS 基于与目标空燃比对应的分配比,在压缩冲程期间喷射。 此外,将分配后的每个喷射量TIH和TIS与燃料喷射阀的最小补偿量MIN进行比较。 基于比较的结果,具有较小分配比的喷射量被设定为零,并且具有较大分割比的喷射量被设定为整个喷射量TI,当任一个 注射量TIH和TIS被判定为小于最小补偿量MIN。 或者,具有较小分割比的喷射量被设定为最小补偿量MIN,并且具有较大分割比的喷射量被设定为通过从最小补偿量MIN中减去最小补偿量MIN而获得的余数 整个注射量为TI。
    • 6. 发明授权
    • Damage preventing method and device for sensor element of air/fuel ratio
sensor with heater
    • 具有加热器的空气/燃料比传感器传感器元件的防损方法和装置
    • US5353774A
    • 1994-10-11
    • US24178
    • 1993-02-22
    • Junichi Furuya
    • Junichi Furuya
    • G01N27/00F02D41/14G01N27/409
    • F02D41/1494
    • In an internal combustion engine, an air/fuel ratio senator containing a heater for promoting activation of a sensor element is constituted such that turning-on and heating by the heater is started only after a deviation of an output of the air/fuel ratio sensor becomes more than a predetermined value after starting of the engine. Therefore, forced heating by the heater begins only after moisture in the exhaust adhering to the sensor element is made to fully evaporate by exhaust heat, thereby preventing damage on the sensor element. The damage would be caused by thermal shock due to a difference in the temperature between the inner and the outer surfaces of the sensor element due to forced heating of the moisture.
    • 在内燃机中,包含用于促进传感器元件的启动的加热器的空气/燃料比参议器被构成为仅在加热器的接通和加热仅在空气/燃料比传感器的输出偏差 在发动机启动后变得超过预定值。 因此,只有在通过排气热附着在传感器元件上的废气中的水分被完全蒸发之后,加热器的强制加热开始,从而防止传感器元件的损坏。 由于湿气的强制加热,传感器元件的内表面和外表面之间的温度差异会导致热冲击。
    • 7. 发明授权
    • Apparatus for and method of controlling intake operation of an internal combustion engine
    • 用于控制内燃机的进气操作的装置和方法
    • US07520261B2
    • 2009-04-21
    • US12029671
    • 2008-02-12
    • Masayuki SaruwatariJunichi Furuya
    • Masayuki SaruwatariJunichi Furuya
    • F02B5/02
    • F02D41/0002F02D13/0226F02D41/0255F02D41/068F02D41/401F02D2041/001Y02T10/18Y02T10/26Y02T10/42
    • Opening timing of the intake valve of an internal combustion engine is controlled to take a value within a range from 30° to 140° after the top dead center of intake stroke during a period of time before completion of engine warming-up from starting of an engine, and also, effective opening area of the intake valve is made smaller than the effective opening area thereof that occurs after completion of engine warming-up in order to increase the flow velocity of intake air entering through the intake valve, and at the same time, fuel is injected into a combustion chamber during at least one of a first period of time in which the flow velocity of intake air is high immediately after the intake valve is opened and a second period of time previous to the first period of time in which the flow velocity of intake air is high, and during a third period of time starting immediately before ignition timing.
    • 控制内燃机的进气门的打开正时,在发动机预热完成之后的时间段内,在进气冲程的上止点之后从30°到140°的范围内的值被控制 发动机,并且使得进气门的有效开口面积小于在发动机加热完成之后发生的有效开口面积,以增加通过进气门进入的进气的流速,同时 在进气阀打开后立即进入空气的流量高的第一时间段和第一时间段之前的第二时间段中的至少一个时间内将燃料喷射到燃烧室中, 进气的流速高,并且在点火正时之前的第三时间段内开始。