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    Engine torque estimation and control systems and methods
    1.
    发明授权
    Engine torque estimation and control systems and methods 有权

    公开(公告)号：US11339759B2

    公开(公告)日：2022-05-24

    申请号：US17066792

    申请日：2020-10-09

    Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC

    Inventor： Tameem K. Assaf ,  Kristopher J. Healey ,  Chao F. Daniels ,  Shanshan L. Peer

    IPC: F02P5/153 ,  F02D41/30 ,  F02P5/14 ,  F02P5/06

    Abstract: An engine control system includes: a normalization module configured to normalize, to within a predetermined range of values, a spark timing of an engine and at least one other parameter of the engine, thereby producing a normalized spark timing and at least one normalized other parameter, respectively; a processing module configured to generate a sigmoidal spark timing by applying, to the normalized spark timing, one of (a) a sigmoidal function and a sinusoidal function; and an estimation module configured to estimate a torque output of the engine based on the normalized spark timing and the at least one normalized other parameter using a mathematical model.

    System and method for controlling a multi-fuel engine to reduce engine pumping losses
    2.
    发明授权
    System and method for controlling a multi-fuel engine to reduce engine pumping losses 有权
    用于控制多燃料发动机以减少发动机泵送损失的系统和方法

    公开(公告)号：US09457789B2

    公开(公告)日：2016-10-04

    申请号：US14276031

    申请日：2014-05-13

    Applicant: GM Global Technology Operations LLC

    Inventor： Tameem K. Assaf ,  Louis A. Avallone

    IPC: B60W10/10 ,  F02D41/30 ,  F02D13/02 ,  F02D13/08 ,  F02D19/06 ,  F02D41/02 ,  F02D41/26 ,  F02D41/00

    CPC classification number: B60W10/10 ,  F02D13/0219 ,  F02D13/08 ,  F02D19/061 ,  F02D19/0647 ,  F02D41/0025 ,  F02D41/0225 ,  F02D41/26 ,  F02D41/30 ,  F02D2200/0404 ,  Y02T10/18 ,  Y02T10/36

    Abstract: A fuel control module, based on an engine torque request, fuels N cylinders of an engine using a first fuel system. N is an integer greater than zero. A throttle control module, based on the engine torque request and the fueling of the N cylinders using the first fuel system, opens a throttle valve to a predetermined wide open throttle (WOT) position. A cost module, when the engine torque request is greater than a predetermined torque: determines a first cost value for fueling at least one of the N cylinders of the engine using a second fuel system; and determines a second cost value for adjusting at least one operating parameter other than fueling of the engine. An adjustment module, based on, the first and second cost values, one of: initiates the fueling of the at least one of the N cylinders using the second fuel system; and adjusts of the at least one operating parameter other than fueling of the engine.

    Abstract translation: 基于发动机扭矩请求的燃料控制模块使用第一燃料系统对发动机的N个气缸进行燃料。 N是大于零的整数。 基于发动机扭矩要求和使用第一燃料系统的N个气缸的燃料供给的节气门控制模块将节流阀打开到预定的大开度节气门（WOT）位置。 当发动机扭矩要求大于预定扭矩时，成本模块：使用第二燃料系统确定用于燃料发动机的N个气缸中的至少一个的第一成本值; 并且确定用于调整除了发动机的燃料供给之外的至少一个操作参数的第二成本值。 基于第一和第二成本值的调节模块之一是：使用第二燃料系统启动N个气缸中的至少一个的燃料供给; 并且调整所述至少一个操作参数，而不是所述发动机的燃料加注。

    SYSTEM AND METHOD FOR CONTROLLING AN ENGINE IN A BI-FUEL VEHICLE TO PREVENT DAMAGE TO A CATALYST DUE TO ENGINE MISFIRE
    4.
    发明申请
    SYSTEM AND METHOD FOR CONTROLLING AN ENGINE IN A BI-FUEL VEHICLE TO PREVENT DAMAGE TO A CATALYST DUE TO ENGINE MISFIRE 有权
    用于控制发动机的发动机的系统和方法，以防止发动机故障对催化剂的损害

    公开(公告)号：US20140257674A1

    公开(公告)日：2014-09-11

    申请号：US13788564

    申请日：2013-03-07

    Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC

    Inventor： Tameem K. Assaf ,  Louis A. Avallone

    IPC: F02D41/00

    CPC classification number: F02D19/0615 ,  F02D13/0238 ,  F02D19/0613 ,  F02D19/0623 ,  F02D19/0647 ,  F02D41/0025 ,  F02D41/0027 ,  F02D41/22 ,  F02D41/3094 ,  F02D2200/1015 ,  Y02T10/18 ,  Y02T10/36

    Abstract: A system according to the principles of the present disclosure includes a misfire detection module and a fuel control module. The misfire detection module detects misfire in a cylinder of an engine. The fuel control module controls a first fuel system to deliver a first fuel to the cylinder and controls a second fuel system to deliver a second fuel to the cylinder. The first fuel and the second fuel are different types of fuel. The fuel control module selectively switches from delivering the first fuel to the cylinder to delivering the second fuel to the cylinder when misfire is detected in the cylinder.

    Abstract translation: 根据本公开的原理的系统包括失火检测模块和燃料控制模块。 失火检测模块检测发动机气缸中的失火。 燃料控制模块控制第一燃料系统以将第一燃料输送到气缸并且控制第二燃料系统以将第二燃料输送到气缸。 第一燃料和第二燃料是不同类型的燃料。 当在气缸中检测到失火时，燃料控制模块选择性地切换从第一燃料输送到气缸以将第二燃料输送到气缸。

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