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    Motor vehicle and control method of motor vehicle
    8.
    发明申请
    Motor vehicle and control method of motor vehicle 审中-公开
    机动车辆及机动车辆的控制方法

    公开(公告)号：US20060218896A1

    公开(公告)日：2006-10-05

    申请号：US11395281

    申请日：2006-04-03

    申请人： Daigo Ando ,  Keiko Hasegawa ,  Osamu Harada ,  Toshio Inoue ,  Mamoru Tomatsuri ,  Keita Fukui

    发明人： Daigo Ando ,  Keiko Hasegawa ,  Osamu Harada ,  Toshio Inoue ,  Mamoru Tomatsuri ,  Keita Fukui

    IPC分类号： F01N7/00 ,  F01N3/00

    CPC分类号： B60W20/10 ,  B60K6/445 ,  B60L2240/445 ,  B60W10/06 ,  B60W20/00 ,  B60W2510/0671 ,  B60W2510/068 ,  F01N11/002 ,  F02D41/0235 ,  F02D41/065 ,  F02D41/18 ,  F02N11/0814 ,  Y02T10/47 ,  Y02T10/48 ,  Y02T10/6239

    摘要： In a hybrid vehicle of the invention, in the event of specification that an exhaust treatment catalyst is in a preset adequate state at step S112, combustion control of an engine starts after a decrease of an intake pipe pressure P to a preset reference negative pressure Pref and reduction of an intake air flow into a cylinder of the engine by engine motoring. In the event of specification that the exhaust treatment catalyst is not in the preset adequate state but in an inadequate state at step S112, on the other hand, the combustion control of the engine immediately starts, prior to the decrease of the intake pipe pressure P to the preset reference negative pressure Pref. The hybrid vehicle of the invention allows an early start of the combustion control in a lower catalyst temperature condition that lowers the catalytic conversion power of the exhaust treatment catalyst and in a higher catalyst temperature condition that causes accelerated deterioration of the exhaust treatment catalyst in exposure to the air. The early start of the combustion control effectively reduces the potential shocks on a start of the engine, while preventing the potential troubles, for example, the worsened emission and the accelerated deterioration of the exhaust treatment catalyst, arising in the course of engine motoring due to the inadequate state of the exhaust treatment catalyst.

    摘要翻译： 在本发明的混合动力车辆中，在步骤S112中规定废气处理催化剂处于预先设定的适当状态的情况下，发动机的燃烧控制在进气管压力P降低至预先设定的基准负压 通过发动机起动来减少进入发动机气缸的进气流量。 在规定废气处理催化剂不处于预设适当状态但在步骤S112处于不充分状态的情况下，发动机的燃烧控制在进气管压力降低之前立即开始 P到预设参考负压Pref。 本发明的混合动力车辆能够在较低的催化剂温度条件下早期开始燃烧控制，其降低排气处理催化剂的催化转化率，并且在较高的催化剂温度条件下，导致废气处理催化剂暴露于 空气。 燃烧控制的早期开始有效地减少了发动机起动时的潜在冲击，同时防止了在发动机运转过程中引起的排气处理催化剂的恶化和加速劣化等潜在的问题， 废气处理催化剂的状态不足。