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81 条记录 (耗时 0.034 秒)

    System and method for boost control
    11.
    发明授权
    System and method for boost control 有权

    公开(公告)号：US10895197B2

    公开(公告)日：2021-01-19

    申请号：US15878915

    申请日：2018-01-24

    申请人： Ford Global Technologies, LLC

    发明人： Julia Helen Buckland ,  Baitao Xiao ,  Tyler Kelly ,  David Bell

    IPC分类号： F02B37/14 ,  F02B37/10 ,  F02B37/18 ,  F02B39/10 ,  F02B37/16 ,  F02B37/12

    摘要： Methods and systems are provided for improving surge control in a boosted engine system configured with an electric motor to provide electrical boost assistance. Tip-in and tip-out surge are addressed by increasing the opening of a compressor recirculation valve and coordinating the recirculation valve opening with adjustments to an exhaust waste-gate position and a power output by the electric motor. The adjustments enable an intake airflow to be provided that operates the compressor outside a surge region while providing a target boost pressure as operator torque demand increases or decreases.

    METHODS AND SYSTEMS FOR SURGE CONTROL
    15.
    发明申请
    METHODS AND SYSTEMS FOR SURGE CONTROL 有权
    防治方法和系统

    公开(公告)号：US20160201584A1

    公开(公告)日：2016-07-14

    申请号：US14592759

    申请日：2015-01-08

    申请人： Ford Global Technologies, LLC

    发明人： Mrdjan J. Jankovic ,  Julia Helen Buckland ,  Hamid-Reza Ossareh ,  Charlie Teng

    IPC分类号： F02D41/00 ,  F02D41/22

    CPC分类号： F02D41/0007 ,  F02D41/22 ,  F02D41/2422 ,  F02D41/2464 ,  F02D2200/501 ,  Y02T10/144

    摘要： Methods and systems are provided for calibrating a compressor surge line. In one example, a method may include adjusting the compressor surge line based on a vehicle speed in addition to a compressor pressure ratio. For example, at higher vehicle speeds, above a threshold vehicle speed, a less aggressive surge line calibration may be utilized in order to improve drivability while at lower vehicle speeds, below the threshold vehicle speed, a more aggressive surge line calibration may be utilized for NVH mitigation.

    摘要翻译： 提供了用于校准压缩机喘振线路的方法和系统。 在一个示例中，方法可以包括除了压缩机压力比之外基于车速来调节压缩机喘振线。 例如，在较高的车辆速度下，高于阈值车辆速度，可以利用较不积极的喘振线路校准，以便在低于车辆速度的车辆速度较低时提高驾驶性能，可以利用更积极的喘振线校准 NVH缓解

    Methods and systems for fuel canister purge flow estimation with an intake oxygen sensor
    17.
    发明授权
    Methods and systems for fuel canister purge flow estimation with an intake oxygen sensor 有权
    使用进气氧传感器的燃油罐吹扫流量估算方法和系统

    公开(公告)号：US09322367B2

    公开(公告)日：2016-04-26

    申请号：US14155261

    申请日：2014-01-14

    申请人： Ford Global Technologies, LLC

    发明人： Christian Winge Vigild ,  Julia Helen Buckland

    IPC分类号： F02M25/07 ,  F02M25/08

    CPC分类号： F02M25/0836

    摘要： Methods and systems are provided for estimating a fuel canister purge flow based on outputs of an intake manifold oxygen sensor. For example, during boosted engine operation when exhaust gas recirculation (EGR) is flowing below a threshold and purge is enabled, purge flow may be estimated based on changes in the sensor output while modulating a canister purge valve between an open and closed position. Then, during subsequent operation wherein EGR and purge flow are enabled, the output of the sensor may be adjusted based on the estimated purge flow.

    摘要翻译： 提供了基于进气歧管氧传感器的输出来估计燃料罐吹扫流量的方法和系统。 例如，当废气再循环（EGR）流过低于阈值并且净化被启用时，在增压发动机操作期间，可以基于传感器输出的变化来估计吹扫流量，同时在打开和关闭位置之间调节罐排放阀。 然后，在其中启用EGR和净化流的后续操作期间，可以基于估计的净化流量来调节传感器的输出。