Systems for fuel delivery
    1.
    发明授权

    公开(公告)号:US10125711B2

    公开(公告)日:2018-11-13

    申请号:US14811928

    申请日:2015-07-29

    Abstract: Various systems are provided for delivering fuel to an engine. In one example, a system includes a controller and a fluid system configured to maintain a fluid at a pressure downstream of a check valve. The controller may be configured to determine if a leak is present in the fluid system based on a first pressure decay rate of the fluid system, and responsive to identifying that a leak is present in the fluid system, differentiate between an internal leak and an external leak based on a leak flow rate as fluid system pressure decreases.

    Methods and system for aging compensation of a fuel system

    公开(公告)号:US10260446B2

    公开(公告)日:2019-04-16

    申请号:US15215620

    申请日:2016-07-21

    Abstract: Various methods and systems are provided for health assessments of a fuel system. In one example, a fuel system includes a low-pressure pump operable to pump fuel from a fuel source at a first pressure, a high-pressure pump operable to increase the first pressure to a second pressure, a valve positioned between the low-pressure pump and the high-pressure pump and operable to control fuel flow to the high-pressure pump, a common fuel rail fluidly coupling the high-pressure pump to a plurality of fuel injectors coupled to cylinders of an engine, and a controller. The controller is operable to adjust an amount of valve electrical current supplied to the valve to reach a commanded pressure of the common fuel rail during cylinder firing conditions, the supplied valve electrical current adjusted based on a valve pre-firing correction factor for the valve obtained based on valve electrical current prior to cylinder firing commencing.

    METHOD AND SYSTEMS FOR ENGINE FUEL INJECTION CONTROL
    6.
    发明申请
    METHOD AND SYSTEMS FOR ENGINE FUEL INJECTION CONTROL 有权
    发动机燃油喷射控制方法与系统

    公开(公告)号:US20140330504A1

    公开(公告)日:2014-11-06

    申请号:US13886486

    申请日:2013-05-03

    Abstract: Various methods and systems are provided for indexing an injector map and subsequently controlling fuel injection to an engine. In one embodiment, a non-transitory computer readable storage medium with memory comprises fuel injector activation data indexed in the memory according to an input parameter, instructions for determining a modified pressure value based on a determined pressure and a modified pressure function, and instructions for generating a fuel injector activation output by interpolating among the indexed fuel injector activation data with the modified pressure value as the input parameter.

    Abstract translation: 提供各种方法和系统用于对注射器图进行分度索引并随后控制对发动机的燃料喷射。 在一个实施例中,具有存储器的非瞬时计算机可读存储介质包括根据输入参数在存储器中索引的燃料喷射器激活数据,用于基于确定的压力和修改的压力函数来确定修改的压力值的指令,以及用于 通过在索引的燃料喷射器启动数据与修改的压力值之间进行内插作为输入参数来产生燃料喷射器激活输出。

    Method and systems for engine fuel injection control
    9.
    发明授权
    Method and systems for engine fuel injection control 有权
    发动机燃油喷射控制方法和系统

    公开(公告)号:US09228525B2

    公开(公告)日:2016-01-05

    申请号:US13886486

    申请日:2013-05-03

    Abstract: Various methods and systems are provided for indexing an injector map and subsequently controlling fuel injection to an engine. In one embodiment, a non-transitory computer readable storage medium with memory comprises fuel injector activation data indexed in the memory according to an input parameter, instructions for determining a modified pressure value based on a determined pressure and a modified pressure function, and instructions for generating a fuel injector activation output by interpolating among the indexed fuel injector activation data with the modified pressure value as the input parameter.

    Abstract translation: 提供各种方法和系统用于对注射器图进行分度索引并随后控制对发动机的燃料喷射。 在一个实施例中,具有存储器的非瞬时计算机可读存储介质包括根据输入参数在存储器中索引的燃料喷射器激活数据,用于基于确定的压力和修改的压力函数来确定修改的压力值的指令,以及用于 通过在索引的燃料喷射器启动数据与修改的压力值之间进行内插作为输入参数来产生燃料喷射器激活输出。

    WHEEL MONITORING SYSTEM AND METHOD
    10.
    发明申请
    WHEEL MONITORING SYSTEM AND METHOD 有权
    车轮监控系统及方法

    公开(公告)号:US20150193992A1

    公开(公告)日:2015-07-09

    申请号:US14547662

    申请日:2014-11-19

    CPC classification number: G07C5/0808 B61K9/12 G01M17/10

    Abstract: Systems and methods for monitoring a vehicle determine a baseline wheel rotational speed and wheel rotational speeds of a wheel for different positions along an outer perimeter of the wheel. One or more deviations between the wheel rotational speeds and the baseline wheel rotational speed are determined, and the deviations between the wheel rotational speeds and the baseline wheel rotational speed are correlated with one or more identified positions of the positions along the outer perimeter of the wheel. One or more of damage to the wheel or damage to a drivetrain of the vehicle is identified based at least in part on the one or more deviations being correlated with the one or more identified positions.

    Abstract translation: 用于监测车辆的系统和方法确定轮沿着车轮外周的不同位置的基准车轮转速和车轮转速。 确定车轮旋转速度和基准轮转速之间的一个或多个偏差,并且车轮旋转速度与基准车轮旋转速度之间的偏差与沿车轮外周的位置的一个或多个识别位置相关联 。 至少部分地基于与一个或多个所识别的位置相关联的一个或多个偏差来识别对车轮的损坏或对车辆的动力传动系统的损坏的一个或多个。

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