Method and means for improved efficiency of cylinder deactivation (DODTM) engines
    1.
    发明申请
    Method and means for improved efficiency of cylinder deactivation (DODTM) engines 审中-公开
    提高气缸停用(DODTM)发动机效率的方法和手段

    公开(公告)号:US20050279320A1

    公开(公告)日:2005-12-22

    申请号:US10872267

    申请日:2004-06-18

    IPC分类号: F02D17/02

    CPC分类号: F02D17/02

    摘要: A cylinder deactivation (DOD™) engine is provided with features and operated in a manner to increase the cylinder air charges of the operating cylinders in DOD operation with the DOD cylinders cut out. The increased charge air allows higher loading of the STD cylinders extending the range of torque loads and speeds for DOD engine operation without requiring switchover to STD operation wherein all cylinders are in operation. The result is increased overall efficiency by extended operation of the engine in a DOD mode wherein the operating cylinders have higher levels of volumetric efficiency and reduced fuel consumption.

    摘要翻译: 气缸停用(DOD(TM))发动机具有特征,并且以DOD操作中的DOD气缸切出的方式增加操作气缸的气缸气压。 增加的增压空气允许STD气缸的更高负载延长了DOD发动机运行的扭矩负载和速度的范围,而不需要切换到所有气缸正在运行的STD操作。 结果是通过DOD模式中的发动机的扩展操作来提高整体效率,其中操作气缸具有更高水平的容积效率和降低的燃料消耗。

    DOD throttling and intake control
    2.
    发明申请
    DOD throttling and intake control 有权
    DOD节流和进气控制

    公开(公告)号:US20050172934A1

    公开(公告)日:2005-08-11

    申请号:US10772845

    申请日:2004-02-05

    摘要: A throttling and intake control system transitions between activated and deactivated modes in a displacement on demand engine. The throttling and intake control system includes an intake manifold pressure sensor that generates an intake manifold pressure signal and a controller that calculates a pressure window based on the manifold pressure and an engine speed signal. The controller transitions the engine from the activated mode to the deactivated mode when the measured intake manifold pressure is greater than the maximum limit of the pressure window. The controller transitions the engine from the deactivated mode to the activated mode when the intake manifold pressure is less than the lower limit of the pressure window.

    摘要翻译: 节流和进气控制系统在位移点火发动机中在激活和停用模式之间转换。 节流和进气控制系统包括产生进气歧管压力信号的进气歧管压力传感器和基于歧管压力和发动机转速信号计算压力窗口的控制器。 当测量的进气歧管压力大于压力窗口的最大极限时,控制器将发动机从激活模式转换到停用模式。 当进气歧管压力小于压力窗口的下限时,控制器将发动机从停用模式转换到启动模式。

    Accelerating catalytic conversion
    4.
    发明申请
    Accelerating catalytic conversion 有权
    加速催化转化

    公开(公告)号:US20050210865A1

    公开(公告)日:2005-09-29

    申请号:US10807751

    申请日:2004-03-24

    摘要: A method of reducing exhaust emission from a catalytic converter apparatus of a vehicle, the apparatus including at least one catalytic converter, each of the at least one catalytic converter having a catalyst brick positioned within a predefined length of the vehicle. The method includes directing exhaust to pass more than once through the predefined length through at least one of the at least one catalyst brick. The converter apparatus can accelerate catalyst conversion reactions and thus accelerate converter system light-off.

    摘要翻译: 一种减少来自车辆的催化转化器装置的废气排放的方法,所述装置包括至少一个催化转化器,所述至少一个催化转化器中的每一个具有位于车辆的预定长度内的催化剂砖。 该方法包括引导排气通过至少一个催化剂砖不止一次穿过预定长度。 转换器装置可以加速催化剂转化反应,从而加速转换器系统的熄灭。