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    Internal combustion engine system and starting method of internal combustion engine
    6.
    发明申请
    Internal combustion engine system and starting method of internal combustion engine 失效
    内燃机系统及内燃机起动方法

    公开(公告)号：US20060060162A1

    公开(公告)日：2006-03-23

    申请号：US11227295

    申请日：2005-09-16

    申请人： Keita Fukui ,  Keiko Hasegawa ,  Mamoru Tomatsuri ,  Naoto Suzuki ,  Toshio Inoue ,  Katsuhiko Yamaguchi

    发明人： Keita Fukui ,  Keiko Hasegawa ,  Mamoru Tomatsuri ,  Naoto Suzuki ,  Toshio Inoue ,  Katsuhiko Yamaguchi

    IPC分类号： F02M1/00

    CPC分类号： F02D41/3836 ,  F02D35/023 ,  F02D35/024 ,  F02D41/0002 ,  F02D41/062 ,  F02D41/3094 ,  F02D2250/31 ,  F02N19/004 ,  F02N2300/104

    摘要： The start control procedure of the invention lags an open-close timing VVT of an intake valve, restricts a throttle opening TH of a throttle valve, and starts cranking an engine with a lower torque Tlow. When a pressure Pf of a fuel supplied to in-cylinder fuel injection valves reaches or exceeds a preset reference value, which is greater than a sum of an in-cylinder compression pressure Pin and a closed valve position-retaining pressure Pcv of the in-cylinder fuel injection valves, the start control procedure cranks the engine with a standard cranking torque Tset. The start control procedure then starts advance of the open-close timing VVT of the intake valve, cancels the restriction of the throttle opening TH, and starts fuel injection from the in-cylinder fuel injection valves. This arrangement enables the fuel pressure Pf to quickly rise to or above the sum of the in-cylinder compression pressure Pin and the closed valve position-retaining pressure Pcv, and thereby effectively prevents the in-cylinder fuel injection valves from being inadequately opened.

    摘要翻译： 本发明的起动控制程序滞后于进气门的开闭正时VVT，限制了节流阀的节气门开度TH，并开始以较低的转矩Tlow启动发动机。 当供给到缸内燃料喷射阀的燃料的压力Pf达到或超过预先设定的基准值，该预设基准值大于缸内压缩压力Pin与内燃机燃料喷射阀的关闭阀位置保持压力Pcv之和时， 气缸燃油喷射阀，起动控制程序用标准起动转矩Tset曲柄发动机。 起动控制程序然后开始进气门的开关定时VVT的前进，消除节气门开度TH的限制，并开始从缸内燃料喷射阀的燃料喷射。 由此，能够使燃料压力Pf快速上升至缸内压缩压力Pin和关闭阀位置保持压力Pcv的总和以上，从而有效地防止缸内燃料喷射阀的打开不充分。

    Internal combustion engine system and starting method of internal combustion engine
    7.
    发明授权
    Internal combustion engine system and starting method of internal combustion engine 失效
    内燃机系统及内燃机起动方法

    公开(公告)号：US07281509B2

    公开(公告)日：2007-10-16

    申请号：US11227295

    申请日：2005-09-16

    申请人： Keita Fukui ,  Keiko Hasegawa ,  Mamoru Tomatsuri ,  Naoto Suzuki ,  Toshio Inoue ,  Katsuhiko Yamaguchi

    发明人： Keita Fukui ,  Keiko Hasegawa ,  Mamoru Tomatsuri ,  Naoto Suzuki ,  Toshio Inoue ,  Katsuhiko Yamaguchi

    IPC分类号： F02D41/06 ,  F02D9/02 ,  F02D13/02

    CPC分类号： F02D41/3836 ,  F02D35/023 ,  F02D35/024 ,  F02D41/0002 ,  F02D41/062 ,  F02D41/3094 ,  F02D2250/31 ,  F02N19/004 ,  F02N2300/104

    摘要： The start control procedure of the invention lags an open-close timing VVT of an intake valve, restricts a throttle opening TH of a throttle valve, and starts cranking an engine with a lower torque Tlow. When a pressure Pf of a fuel supplied to in-cylinder fuel injection valves reaches or exceeds a preset reference value, which is greater than a sum of an in-cylinder compression pressure Pin and a closed valve position-retaining pressure Pcv of the in-cylinder fuel injection valves, the start control procedure cranks the engine with a standard cranking torque Tset. The start control procedure then starts advance of the open-close timing VVT of the intake valve, cancels the restriction of the throttle opening TH, and starts fuel injection from the in-cylinder fuel injection valves. This arrangement enables the fuel pressure Pf to quickly rise to or above the sum of the in-cylinder compression pressure Pin and the closed valve position-retaining pressure Pcv, and thereby effectively prevents the in-cylinder fuel injection valves from being inadequately opened.

    摘要翻译： 本发明的起动控制程序滞后于进气门的开闭正时VVT，限制了节流阀的节气门开度TH，并开始以较低的转矩Tlow启动发动机。 当供给到缸内燃料喷射阀的燃料的压力Pf达到或超过预先设定的基准值，该预设基准值大于缸内压缩压力Pin与内燃机燃料喷射阀的关闭阀位置保持压力Pcv之和时， 气缸燃油喷射阀，起动控制程序用标准起动转矩Tset曲柄发动机。 起动控制程序然后开始进气门的开关定时VVT的前进，消除节气门开度TH的限制，并开始从缸内燃料喷射阀的燃料喷射。 由此，能够使燃料压力Pf快速上升至缸内压缩压力Pin和关闭阀位置保持压力Pcv的总和以上，从而有效地防止缸内燃料喷射阀的打开不充分。