Oil carryover reduction system
    1.
    发明授权

    公开(公告)号:US10557430B2

    公开(公告)日:2020-02-11

    申请号:US15334416

    申请日:2016-10-26

    Abstract: A system determines which propulsion-generating vehicle or vehicles in a group of propulsion-generating vehicles have an increased risk for oil carryover during operation at an idle setting for at least a designated oil carryover commencement time period. The system also determines a power requirement for the group of propulsion-generating vehicles in the vehicle system. The system determines power outputs for the propulsion-generating vehicles in the group such that the propulsion-generating vehicle or vehicles having the increased risk for oil carryover do not operate at an idle setting for longer than the designated oil carryover commencement period, and that the power generated by the group of propulsion-generating vehicles meets the power requirement that is determined.

    SYSTEMS AND METHODS FOR ENGINE CONTROL
    4.
    发明申请
    SYSTEMS AND METHODS FOR ENGINE CONTROL 审中-公开
    用于发动机控制的系统和方法

    公开(公告)号:US20160230712A1

    公开(公告)日:2016-08-11

    申请号:US15132013

    申请日:2016-04-18

    Abstract: Various methods for controlling EGR rate are disclosed. In one embodiment, a method comprises routing at least a portion of exhaust from a first exhaust manifold to an intake manifold, and not to atmosphere, the first exhaust manifold exclusively coupled to a first cylinder group. The method further includes routing exhaust from at least one additional exhaust manifold coupled to a corresponding at least one additional cylinder group to atmosphere, and during a first engine operating condition where an engine fuel demand is below a threshold demand, not injecting fuel to each of a subset of cylinders in the first cylinder group while injecting fuel to a subset of all cylinders coupled to the at least one additional exhaust manifold, where a number of cylinders of the subset of cylinders in the first cylinder group decreases in response to an increase in a target EGR rate.

    Abstract translation: 公开了用于控制EGR率的各种方法。 在一个实施例中,一种方法包括将来自第一排气歧管的排气的至少一部分布置到进气歧管,而不是大气,第一排气歧管独特地联接到第一气缸组。 该方法还包括将至少一个附加的排气歧管的排气排放到联合到相应的至少一个附加气缸组的大气中,以及在发动机燃料需求低于阈值要求的第一发动机运行状态期间,不将燃料喷射到 第一气缸组中的气缸的子集,同时将燃料喷射到耦合到所述至少一个附加排气歧管的所有气缸的子集,其中第一气缸组中的气缸子集的数量的气缸响应于 目标EGR率。

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