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    ENGINE CONTROL SYSTEM
    2.
    发明申请
    ENGINE CONTROL SYSTEM 有权
    发动机控制系统

    公开(公告)号：US20100162993A1

    公开(公告)日：2010-07-01

    申请号：US12280059

    申请日：2007-01-25

    申请人： Hisayo Yoshikawa ,  Masahiro Ito ,  Kenji Kasashima

    发明人： Hisayo Yoshikawa ,  Masahiro Ito ,  Kenji Kasashima

    IPC分类号： F02D9/08 ,  F02D11/10

    CPC分类号： F02D41/0002 ,  F02D11/105 ,  F02D41/18 ,  F02D2041/1431 ,  F02D2200/0402 ,  F02D2200/0408 ,  F02D2250/18 ,  Y02T10/42

    摘要： In an electronic throttle control system, a target intake pipe pressure as well as a presumed value for the intake pipe pressure is calculated, so that a deviation between the target value and the presumed value for the intake pipe pressure is calculated. The deviation is compensated in an advancing side by an amount corresponding to a delay of response in the throttle control system. An intake air amount passing through a throttle valve is calculated based on the above compensated deviation and a presumed intake air amount. A target opening degree of a throttle valve is finally calculated based on the above-calculated intake air amount passing through a throttle valve. Accordingly, a response and stability of the throttle control can be improved.

    摘要翻译： 在电子节气门控制系统中，计算目标进气管压力以及进气管压力的推定值，从而计算出目标值与进气管压力的推测值之间的偏差。 该偏差在前进侧被补偿与油门控制系统中的响应延迟相对应的量。 基于上述补偿偏差和推定的进气量计算通过节流阀的进气量。 基于通过节流阀的上述计算出的进气量，最终计算节流阀的目标开度。 因此，能够提高节气门控制的响应和稳定性。

    Engine control system
    3.
    发明授权
    Engine control system 有权
    发动机控制系统

    公开(公告)号：US08151764B2

    公开(公告)日：2012-04-10

    申请号：US12280059

    申请日：2007-01-25

    申请人： Hisayo Yoshikawa ,  Masahiro Ito ,  Kenji Kasashima

    发明人： Hisayo Yoshikawa ,  Masahiro Ito ,  Kenji Kasashima

    IPC分类号： F02D9/08 ,  F02D11/10

    CPC分类号： F02D41/0002 ,  F02D11/105 ,  F02D41/18 ,  F02D2041/1431 ,  F02D2200/0402 ,  F02D2200/0408 ,  F02D2250/18 ,  Y02T10/42

    摘要： In an electronic throttle control system, a target intake pipe pressure as well as a presumed value for the intake pipe pressure is calculated, so that a deviation between the target value and the presumed value for the intake pipe pressure is calculated. The deviation is compensated in an advancing side by an amount corresponding to a delay of response in the throttle control system. An intake air amount passing through a throttle valve is calculated based on the above compensated deviation and a presumed intake air amount. A target opening degree of a throttle valve is finally calculated based on the above-calculated intake air amount passing through a throttle valve. Accordingly, a response and stability of the throttle control can be improved.

    摘要翻译： 在电子节气门控制系统中，计算目标进气管压力以及进气管压力的推定值，从而计算出目标值与进气管压力的推测值之间的偏差。 该偏差在前进侧被补偿与油门控制系统中的响应延迟相对应的量。 基于上述补偿偏差和推定的进气量计算通过节流阀的进气量。 基于通过节流阀的上述计算出的进气量，最终计算节流阀的目标开度。 因此，能够提高节气门控制的响应和稳定性。

    Idle speed control apparatus for internal combustion engine
    5.
    发明授权
    Idle speed control apparatus for internal combustion engine 失效
    内燃机空转速度控制装置

    公开(公告)号：US07806105B2

    公开(公告)日：2010-10-05

    申请号：US11910882

    申请日：2006-04-05

    申请人： Naohide Fuwa ,  Hisayo Yoshikawa

    发明人： Naohide Fuwa ,  Hisayo Yoshikawa

    IPC分类号： F02D41/00 ,  F02D13/02

    CPC分类号： F01L13/0015 ,  F01L1/34 ,  F02D13/023 ,  F02D13/0238 ,  F02D13/0261 ,  F02D31/003 ,  F02D31/005 ,  F02D41/0002 ,  F02D2013/005 ,  F02D2041/002 ,  Y02T10/18 ,  Y02T10/42

    摘要： When it is determined that an engine speed NE rapidly decreases (positive outcome at S210), a throttle increase amount TAu and a valve lift increase amount VLu are computed based on a decrease rate NEd of the engine speed NE (S220). Then, a target throttle opening degree TAt of a throttle valve and a target maximum valve lift VLt of an intake valve are increased by using the throttle increase amount TAu and the valve lift increase amount VLu (S230). As a result, a drop in the engine speed during idling is reliably suppressed.

    摘要翻译： 当确定发动机转速NE迅速下降（S210中为正结果）时，基于发动机转速NE的减小率NEd来计算节气门增加量TAu和气门升程增加量VLu（S220）。 然后，通过使用节气门增加量TAu和气门升程增加量VLu，增加节气门的目标节气门开度TAt和进气门的目标最大气门升程VLt（S230）。 结果，能够可靠地抑制怠速时的发动机转速的下降。

    IDLE SPEED CONTROL APPARATUS FOR INTERNAL COMBUSTION ENGINE
    6.
    发明申请
    IDLE SPEED CONTROL APPARATUS FOR INTERNAL COMBUSTION ENGINE 失效
    内燃机空转控制装置

    公开(公告)号：US20090050107A1

    公开(公告)日：2009-02-26

    申请号：US11910882

    申请日：2006-04-05

    申请人： Naohide Fuwa ,  Hisayo Yoshikawa

    发明人： Naohide Fuwa ,  Hisayo Yoshikawa

    IPC分类号： F02D41/00

    CPC分类号： F01L13/0015 ,  F01L1/34 ,  F02D13/023 ,  F02D13/0238 ,  F02D13/0261 ,  F02D31/003 ,  F02D31/005 ,  F02D41/0002 ,  F02D2013/005 ,  F02D2041/002 ,  Y02T10/18 ,  Y02T10/42

    摘要： When it is determined that an engine speed NE rapidly decreases (positive outcome at S210), a throttle increase amount TAu and a valve lift increase amount VLU are computed based on a decrease rate NEd of the engine speed NE (S220). Then, a target throttle opening degree TAt of a throttle valve and a target maximum valve lift VLt of an intake valve are increased by using the throttle increase amount TAu and the valve lift increase amount VLu (S230). As a result, a drop in the engine speed during idling is reliably suppressed.

    摘要翻译： 当确定发动机转速NE迅速下降（S210中为肯定结果）时，基于发动机转速NE的减小率NEd来计算节气门增加量TAu和气门升程增加量VLU（S220）。 然后，通过使用节气门增加量TAu和气门升程增加量VLu，增加节气门的目标节气门开度TAt和进气门的目标最大气门升程VLt（S230）。 结果，能够可靠地抑制怠速时的发动机转速的下降。

    APPARATUS FOR DIAGNOSING DETERIORATION OF NOX ABSORPTION-REDUCTION CATALYST
    8.
    发明申请
    APPARATUS FOR DIAGNOSING DETERIORATION OF NOX ABSORPTION-REDUCTION CATALYST 审中-公开
    用于诊断NOX吸收还原催化剂的测定装置

    公开(公告)号：US20100199638A1

    公开(公告)日：2010-08-12

    申请号：US12705385

    申请日：2010-02-12

    申请人： Hisayo Yoshikawa

    发明人： Hisayo Yoshikawa

    IPC分类号： F01N11/00

    CPC分类号： F01N11/00 ,  F01N3/0807 ,  F01N2560/026 ,  Y02T10/20 ,  Y02T10/47

    摘要： An apparatus for diagnosing deterioration of a NOx absorption-reduction catalyst provided at an exhaust path of an engine includes a sensor disposed upstream of the catalyst to sense a NOx concentration in emission gas, a calculating unit calculating a first ratio of emission of NOx to inflow of NOx or a second ratio of absorption of NOx to inflow of NOx, and a diagnosing unit which diagnoses deterioration of the catalyst using the first or second ratio as an indicator. The calculating unit calculates inflow of NOx based on an output of the sensor and either the flow volume of the emission gas or a correlation value of the flow volume of the emission gas, calculates the absorption of NOx based on the amount of rich components required for reducing the NOx, and calculates the emission of NOx based on the difference between the inflow and absorption of NOx.

    摘要翻译： 用于诊断设置在发动机的排气路径处的NOx吸收还原催化剂的劣化的装置包括设置在催化剂上游以感测排放气体中的NOx浓度的传感器，计算单元，其计算第一NOx排放比率 的NOx或NOx的吸收的第二比例与NOx的流入，以及诊断单元，其使用第一或第二比值作为指标来诊断催化剂的劣化。 计算单元基于传感器的输出和排放气体的流量或排放气体的流量的相关值来计算NOx的流入，基于所需的富成分的量来计算NOx的吸收量 降低NOx，并且基于NOx的流入和吸收之间的差异来计算NOx的排放。

    Air-fuel ratio control device of internal combustion engine
    9.
    发明授权
    Air-fuel ratio control device of internal combustion engine 有权
    内燃机空燃比控制装置

    公开(公告)号：US07742870B2

    公开(公告)日：2010-06-22

    申请号：US12265775

    申请日：2008-11-06

    申请人： Hisayo Yoshikawa

    发明人： Hisayo Yoshikawa

    IPC分类号： B60T7/12 ,  F02D41/00

    CPC分类号： F02D41/1495 ,  F02D41/1454 ,  F02D41/34 ,  F02D2041/1422 ,  F02D2041/1433

    摘要： A dead time in the case where an output of an air-fuel ratio sensor changes in a lean direction and a dead time in the case where the output changes in a rich direction are sensed respectively. The number of elements constituting data of past feedback correction amounts used for calculating a present feedback correction amount is changed in accordance with the larger one of the dead times. A lean direction response time and a rich direction response time are sensed respectively. A control gain is corrected in accordance with the lean direction response time when the output of the air-fuel ratio sensor changes in the lean direction. The control gain is corrected in accordance with the rich direction response time when the output changes in the rich direction.

    摘要翻译： 分别感测在空燃比传感器的输出在稀薄方向上变化的情况下的死区时间和在丰富方向上的输出变化的情况下的死区时间。 构成用于计算当前反馈校正量的过去反馈校正量的数据的数量根据死区时间较大而改变。 分别感测到倾斜响应时间和丰富的方向响应时间。 当空燃比传感器的输出在倾斜方向上变化时，根据倾斜方向响应时间校正控制增益。 当输出在丰富方向上变化时，根据丰富方向响应时间校正控制增益。