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    Method of controlling a fuel injection
    2.
    发明授权
    Method of controlling a fuel injection 有权

    公开(公告)号：US09644565B2

    公开(公告)日：2017-05-09

    申请号：US14459018

    申请日：2014-08-13

    Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC

    Inventor： Serena Tordin ,  Antonio Massaro

    IPC: G06F7/00 ,  G06F17/00 ,  F02D41/40 ,  F02D41/24

    CPC classification number: F02D41/40 ,  F02D41/2416 ,  F02D41/2422 ,  F02D41/2467 ,  F02D2200/0614 ,  Y02T10/44

    Abstract: A method of controlling an amount of fuel to be injected by a fuel injector into a cylinder of an internal combustion engine is disclosed. A map stores values of a fuel injection quantity drift of said injector. A fuel injection quantity drift is estimated and stored in a corresponding map point to a current engine operating point. A set of map points whose distance from said corresponding map point is smaller than a given distance are selected. All map points of the set of map points are modified by multiplying their entries by a radial weighing factor. The amount of fuel to be injected by the fuel injector to be the requested amount of fuel is corrected by means of the corresponding entry of the map.

    System and method for regulating coolant flow through a charge air cooler of a vehicle
    3.
    发明授权
    System and method for regulating coolant flow through a charge air cooler of a vehicle 有权

    公开(公告)号：US10557406B2

    公开(公告)日：2020-02-11

    申请号：US15595083

    申请日：2017-05-15

    Applicant: GM Global Technology Operations LLC

    Inventor： Serena Tordin ,  Fabrizio Ramolivo ,  Francesco Castorina

    IPC: F02B29/04 ,  F02M35/10

    Abstract: A system according to the present disclosure includes a coolant flow request module and a pump control module. The coolant flow request module is configured to determine a coolant flow request based on at least one of (i) an outlet temperature of a compressor disposed upstream of a heat exchanger of a charge air cooler, and (ii) an efficiency of a radiator of the charge air cooler. The pump control module is configured to control an output of a pump based on the coolant flow request. The pump circulates coolant through the radiator of the charge air cooler and through the heat exchanger of the charge air cooler when the pump is activated. The heat exchanger is disposed upstream of an intake manifold of an engine.

    Method for determining fuel consumption of an internal combustion engine
    4.
    发明授权
    Method for determining fuel consumption of an internal combustion engine 有权

    公开(公告)号：US10161775B2

    公开(公告)日：2018-12-25

    申请号：US15380305

    申请日：2016-12-15

    Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC

    Inventor： Umberto Ferrara ,  Serena Tordin

    IPC: G01F1/69 ,  G01C22/02 ,  F02M65/00 ,  F02M57/00 ,  F02M35/16 ,  F02M35/10 ,  G01M15/10 ,  B60R16/023

    Abstract: A method can be used for determining fuel consumption of an internal combustion engine of a vehicle, in real time. The method includes determining a fuel injection quantity of the internal combustion engine based on an oxygen concentration signal from an oxygen sensor and a MAF signal from a mass airflow (MAF) sensor. The MAF sensor is coupled to the intake line and is configured to measure and monitor the mass flow rate of intake air flowing through the intake line. The method further includes determining, via an engine control module (ECM), an instantaneous fuel flow of the internal combustion engine based on the fuel injection quantity. The method further includes communicating, via the ECM, the instantaneous fuel flow to a body control module (BCM) and determining, via the BCM, an average fuel economy of the internal combustion engine based on the fuel flow.

    EXHAUST SYSTEM AND METHOD OF OPERATING THE SAME
    5.
    发明申请
    EXHAUST SYSTEM AND METHOD OF OPERATING THE SAME 审中-公开

    公开(公告)号：US20200088082A1

    公开(公告)日：2020-03-19

    申请号：US16130493

    申请日：2018-09-13

    Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC

    Inventor： Serena Tordin ,  Fabio Sessa ,  Lorenzo Pataccia ,  Francesco Castorina

    IPC: F01N11/00 ,  F02D9/10 ,  F02D41/22 ,  F02D9/04

    Abstract: An exhaust system for a vehicle and method of operating the exhaust system. The exhaust system comprises an internal combustion engine, an exhaust throttle valve, and a pressure sensor. The method comprises the steps of: outputting an exhaust gas from the internal combustion engine; determining a flow factor for the exhaust throttle valve; conducting a diagnostic pressure analysis using one or more pressure readings from the pressure sensor; estimating a stuck position for the exhaust throttle valve; determining a flow limit based on the estimated stuck position; and mitigating one or more exhaust system effects based on the flow limit and/or the estimated stuck position.

    Method of operating a fuel injector
    6.
    发明授权
    Method of operating a fuel injector 有权

    公开(公告)号：US10450987B2

    公开(公告)日：2019-10-22

    申请号：US15298888

    申请日：2016-10-20

    Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC

    Inventor： Serena Tordin ,  Valerio Nuzzo ,  Paul Leonardo Claude ,  Angelo Cancellieri

    IPC: F02D41/24 ,  F02D41/14 ,  F02D41/12 ,  F02D41/18 ,  F02D41/40 ,  F02D41/38

    Abstract: A method of operating a fuel injector of an internal combustion engine includes setting a value of a target fuel quantity to be injected by the fuel injector, initializing a value of a fuel quantity requested from the fuel injector to the value of the target fuel quantity, and correcting the value of the requested fuel quantity. A first learning cycle is performed to correct the value of the requested fuel quantity in which a difference between the target fuel quantity and the injected fuel quantity is calculated and added to the requested fuel quantity to provide a corrected value. The corrected value of the requested fuel quantity is used to determine a reference value of an energizing time that causes the fuel injector to inject a fuel quantity corresponding to the target fuel quantity. The fuel injector is operated based on the determined reference value of the energizing time.

    METHOD OF CONTROLLING A FUEL INJECTION
    8.
    发明申请
    METHOD OF CONTROLLING A FUEL INJECTION 有权
    控制燃油喷射的方法

    公开(公告)号：US20150051814A1

    公开(公告)日：2015-02-19

    申请号：US14459018

    申请日：2014-08-13

    Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC

    Inventor： Serena Tordin ,  Antonio Massaro

    IPC: F02D41/40 ,  F02D41/26

    CPC classification number: F02D41/40 ,  F02D41/2416 ,  F02D41/2422 ,  F02D41/2467 ,  F02D2200/0614 ,  Y02T10/44

    Abstract: A method of controlling an amount of fuel to be injected by a fuel injector into a cylinder of an internal combustion engine is disclosed. A map stores values of a fuel injection quantity drift of said injector. A fuel injection quantity drift is estimated and stored in a corresponding map point to a current engine operating point. A set of map points whose distance from said corresponding map point is smaller than a given distance are selected. All map points of the set of map points are modified by multiplying their entries by a radial weighing factor. The amount of fuel to be injected by the fuel injector to be the requested amount of fuel is corrected by means of the corresponding entry of the map.

    Abstract translation: 公开了一种控制燃料喷射器喷射到内燃机气缸中的燃料量的方法。 地图存储所述喷射器的燃料喷射量漂移的值。 燃料喷射量漂移被估计并存储在与当前发动机工作点相对应的映射点中。 选择与所述对应的地图点的距离小于给定距离的一组地图点。 通过将其条目乘以径向称重因子来修改地图点集合中的所有地图点。 由燃料喷射器喷射的要作为燃料量的燃料量通过地图的相应输入来校正。

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