Pre-Delivery Strategy for Diesel-Engine Vehicles
    51.
    发明申请
    Pre-Delivery Strategy for Diesel-Engine Vehicles 有权
    柴油发动机车辆的交货前策略

    公开(公告)号:US20090240419A1

    公开(公告)日:2009-09-24

    申请号:US12053052

    申请日:2008-03-21

    IPC分类号: F02D41/30

    摘要: A method to supply fuel to an engine of a vehicle is provided. The method includes adjusting a direct injection of fuel into a cylinder of the engine based on whether the vehicle is in a pre-delivery state. In one example, the method includes reducing an amount of fuel in a post injection. In other examples, the method includes changing a timing of a post injection. In still other examples, the method includes changing an amount and/or a timing of a main injection of fuel, or suppressing a post injection. By using a modified post injection schedule during pre-delivery, cylinder bore wetting effects may be reduced. After pre-delivery, a normal post injection schedule may be used to reduce emissions. Pre-delivery may be identified in a variety of ways: based on a number of miles driven, a maximum vehicle speed, an engine run time, or combinations thereof, as examples. Further, a vehicle retailer may actuate a delivery-indicating signal once the vehicle has been delivered.

    摘要翻译: 提供了向车辆的发动机供给燃料的方法。 该方法包括基于车辆是否处于预输送状态来调节燃料直接喷射到发动机气缸中。 在一个示例中,该方法包括减少后喷射中的燃料量。 在其他示例中,该方法包括改变后注入的定时。 在另外的例子中,该方法包括改变主喷射燃料的量和/或定时,或抑制后喷射。 通过在预输送期间使用改进的后喷射计划,可以减少气缸孔润湿效应。 预交货后,可以使用正常的后注射计划来减少排放。 可以以各种方式识别预输送:基于驾驶的里程数,最大车速,发动机运行时间或其组合,作为示例。 此外,车辆零售商可以在车辆被运送之后致动传送指示信号。

    MULTI-STAGED WASTEGATE
    54.
    发明申请
    MULTI-STAGED WASTEGATE 有权
    多标准瓦斯

    公开(公告)号:US20140041380A1

    公开(公告)日:2014-02-13

    申请号:US13570025

    申请日:2012-08-08

    IPC分类号: F02B37/18

    摘要: Embodiments for controlling boost pressure are provided. In one example, a method of controlling a turbocharger of an engine via a multi-staged wastegate comprises during a first condition, actuating a first stage of the wastegate based on boost pressure generated by the turbocharger, and actuating a second stage of the wastegate based on a temperature of a catalyst downstream of the turbocharger. In this way, catalyst heating and boost control may be provided by a common wastegate.

    摘要翻译: 提供了用于控制增压压力的实施例。 在一个示例中,经由多级废气门控制发动机的涡轮增压器的方法包括在第一状态期间,基于由涡轮增压器产生的增压压力来致动废气门的第一级,并基于废气门的第二级启动 在涡轮增压器下游的催化剂的温度下。 以这种方式,催化剂加热和增压控制可以由普通的废气门提供。

    Pre-delivery strategy for diesel-engine vehicles
    56.
    发明授权
    Pre-delivery strategy for diesel-engine vehicles 有权
    柴油机车辆的交货前策略

    公开(公告)号:US08265856B2

    公开(公告)日:2012-09-11

    申请号:US13271006

    申请日:2011-10-11

    IPC分类号: F02D41/30

    摘要: A method to supply fuel to an engine of a vehicle is provided. The method includes adjusting a direct injection of fuel into a cylinder of the engine based on whether the vehicle is in a pre-delivery state. In one example, the method includes reducing an amount of fuel in a post injection to reduce cylinder bore wetting effects and lubricant dilution during the engine cold start. After pre-delivery, a normal post injection schedule may be used to reduce emissions.

    摘要翻译: 提供了向车辆的发动机供给燃料的方法。 该方法包括基于车辆是否处于预输送状态来调节燃料直接喷射到发动机气缸中。 在一个示例中,该方法包括减少后喷射中的燃料量以减少在发动机冷启动期间气缸内润湿效应和润滑剂稀释。 预交货后,可以使用正常的后注射计划来减少排放。