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    Monitoring cold start emission reduction strategy
    2.
    发明授权
    Monitoring cold start emission reduction strategy 有权
    监测冷启动减排战略

    公开(公告)号：US09574971B2

    公开(公告)日：2017-02-21

    申请号：US14311861

    申请日：2014-06-23

    Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC

    Inventor： Kevin J. McKay ,  Steve L. Melby ,  Chad E. Marlett

    IPC: G01M15/10 ,  F02D41/06 ,  F02D41/00 ,  F02D41/28

    CPC classification number: G01M15/102 ,  F02D41/005 ,  F02D41/064 ,  F02D2041/286 ,  F02D2200/021 ,  F02D2200/101 ,  F02D2200/703

    Abstract: A method for assessing a cold start emission reduction (CSER) strategy applied to an engine system is provided. The method determines a first accumulation value based on an estimated output signal that would result from applying a first control command to the engine system. The method determines a second accumulation value based on a measured output signal resulting from applying a second control command that implements the CSER strategy to the engine system. The method compares the first accumulation value and the second accumulation value. The method determines whether the applying the second command to the engine system achieved a performance threshold of the CSER strategy based on the comparing.

    Abstract translation: 提供了一种用于评估应用于发动机系统的冷启动排放减少（CSER）策略的方法。 该方法基于通过将第一控制命令应用于发动机系统而产生的估计的输出信号来确定第一累积值。 该方法基于通过将实施CSER策略的第二控制命令应用于发动机系统而得到的测量输出信号来确定第二累积值。 该方法比较第一累加值和第二累加值。 该方法基于比较确定是否将第二命令应用于发动机系统达到CSER策略的性能阈值。

    EXHAUST GAS RECIRCULATION COOLER PROTECTION SYSTEM AND METHOD
    3.
    发明申请
    EXHAUST GAS RECIRCULATION COOLER PROTECTION SYSTEM AND METHOD 有权
    排气回收冷却器保护系统及方法

    公开(公告)号：US20150198105A1

    公开(公告)日：2015-07-16

    申请号：US14153401

    申请日：2014-01-13

    Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC

    Inventor： Chad E. Marlett ,  Kevin J. McKay ,  Yun Xiao ,  Steve L. Melby

    IPC: F02D41/00

    CPC classification number: F02D41/0065 ,  F02D2200/021 ,  F02D2200/0414 ,  F02D2200/1002 ,  F02D2200/101 ,  F02D2200/501 ,  F02M26/22 ,  F02M26/49 ,  Y02T10/47

    Abstract: A system and method of operating an exhaust gas recirculation (EGR) system of a vehicle includes controlling an EGR valve actuable between an EGR enabled position and an EGR disabled position, such that with the EGR valve in the EGR enabled position a portion of exhaust gas emitted from an engine is directed through an EGR cooler for recirculation into the engine, and with the EGR valve in the EGR disabled position the exhaust gas is not recirculated through the engine. An EGR coolant temperature is predicted based on measured engine speed, vehicle speed, outside ambient temperature, and commanded fuel level of the vehicle. The EGR valve is actuated to the EGR disabled position when the predicted EGR coolant temperature is equal or greater than an EGR coolant temperature threshold. The EGR coolant temperature is predicted without direct measurement of engine coolant temperature.

    Abstract translation: 操作车辆的废气再循环（EGR）系统的系统和方法包括控制可在EGR使能位置和EGR禁用位置之间致动的EGR阀，使得利用EGR使能位置中的EGR阀，排出一部分废气 从发动机排出的燃料通过EGR冷却器引导到再循环到发动机中，并且随着EGR阀处于EGR禁用位置，废气不再通过发动机再循环。 基于测量的发动机转速，车速，外部环境温度和车辆的指令燃料水平来预测EGR冷却剂温度。 当预测的EGR冷却剂温度等于或大于EGR冷却剂温度阈值时，EGR阀被致动到EGR禁止位置。 预测EGR冷却液温度，无需直接测量发动机冷却液温度。

    COLD START EMISSIONS REDUCTION DIAGNOSTIC SYSTEM FOR AN INTERNAL COMBUSTION ENGINE
    4.
    发明申请
    COLD START EMISSIONS REDUCTION DIAGNOSTIC SYSTEM FOR AN INTERNAL COMBUSTION ENGINE 有权
    用于内燃机的冷启动排污诊断系统

    公开(公告)号：US20150094933A1

    公开(公告)日：2015-04-02

    申请号：US14043274

    申请日：2013-10-01

    Applicant: GM Global Technology Operations LLC

    Inventor： Steve L. Melby ,  Kevin J. McKay

    IPC: F02D28/00

    CPC classification number: F02D41/064 ,  F02D41/1462 ,  F02D41/401 ,  F02D2041/1413 ,  F02D2041/1433 ,  F02D2041/1437 ,  F02D2200/021 ,  Y02T10/44

    Abstract: A cold start emissions reduction diagnostic system for an internal combustion engine includes a coolant temperature module including a coolant temperature input, and a memory module having a coolant temperature look-up table. The cold start controller also includes a cold start emissions reduction module configured to selectively compare coolant temperature values with desired emission values in the look-up table to determine at least one of a fuel injection timing and a fuel injection quantity to establish a desired cold start emissions profile. A fuel injection monitoring module is configured and disposed to sense changes in fuel injection timing and fuel injection quantity, and an emission reduction diagnostic model module is configured and disposed to determine emission parameters based on the changes in the one of the fuel injection timing and fuel injection quantity sensed by the fuel injection monitoring module during a cold start.

    Abstract translation: 用于内燃机的冷启动减排诊断系统包括包括冷却剂温度输入的冷却剂温度模块和具有冷却剂温度查找表的存储模块。 冷启动控制器还包括冷启动排放减少模块，其被配置为选择性地将冷却剂温度值与查找表中的期望发射值进行比较，以确定燃料喷射正时和燃料喷射量中的至少一个以建立期望的冷启动 排放情况。 燃料喷射监测模块被配置和设置为检测燃料喷射正时和燃料喷射量的变化，并且配置和设置排放减少诊断模型模块，以基于燃料喷射正时和燃料中的一个的变化来确定发射参数 在冷启动期间由燃料喷射监测模块感测的喷射量。

    Adaptable turbocharger control
    5.
    发明授权
    Adaptable turbocharger control 有权
    适应涡轮增压器控制

    公开(公告)号：US09422859B2

    公开(公告)日：2016-08-23

    申请号：US14197931

    申请日：2014-03-05

    Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC

    Inventor： Chad E. Marlett ,  Kevin J. McKay ,  Lorenzo Pataccia

    IPC: G05B13/02 ,  F02B37/24 ,  F02B37/18 ,  F02B39/16 ,  F02D41/00

    CPC classification number: F02B37/24 ,  F02B37/186 ,  F02B39/16 ,  F02D41/0007 ,  F02D2250/16 ,  G05B13/02 ,  Y02T10/144 ,  Y02T10/40

    Abstract: A method of adapting operation of a variable geometry turbocharger having a variable position vane mechanism with movable vanes is disclosed. The method includes performing at time T1 a vane sweep between open-limit and closed-limit positions to identify an initial range of movement of the mechanism and storing in controller's memory the initial range of movement. The method additionally includes performing at time T2 a vane sweep between the open-limit and closed-limit positions to identify a current range of movement of the mechanism and storing in controller's memory the current range of movement. The method also includes comparing the current range with the initial range. Furthermore, the method includes replacing in controller's memory the initial range with the current range if the current range is equal to or greater than a predetermined range to thereby adapt the operation of the turbocharger to the mechanism's wear between T1 and T2.

    Abstract translation: 公开了一种具有可变位置叶片机构的可变几何涡轮增压器的操作方法，其具有可移动叶片。 该方法包括在时间T1执行在开启极限位置和闭合极限位置之间的叶片扫描，以识别机构的初始运动范围并将控制器存储器中的初始运动范围存储起来。 该方法还包括在时间T2执行在开启极限位置和闭合极限位置之间的叶片扫描，以识别机构的当前运动范围并将其存储在控制器的存储器中当前的运动范围。 该方法还包括将电流范围与初始范围进行比较。 此外，该方法包括如果电流范围等于或大于预定范围，则将控制器存储器中的初始范围替换为电流范围，从而使涡轮增压器的操作适应机构在T1和T2之间的磨损。

    REGULATION OF A DIESEL EXHAUST AFTER-TREATMENT SYSTEM VIA EXHAUST ENERGY DETERMINATION
    8.
    发明申请
    REGULATION OF A DIESEL EXHAUST AFTER-TREATMENT SYSTEM VIA EXHAUST ENERGY DETERMINATION 有权
    通过排气能量测定法对柴油机后处理系统进行调节

    公开(公告)号：US20170074187A1

    公开(公告)日：2017-03-16

    申请号：US14854178

    申请日：2015-09-15

    Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC

    Inventor： Kevin J. McKay ,  Igor Anilovich

    IPC: F02D41/02 ,  F01N11/00

    CPC classification number: F01N11/00 ,  F01N3/021 ,  F01N3/106 ,  F01N3/2066 ,  F01N9/00 ,  F01N2430/00 ,  F01N2900/1404 ,  F01N2900/1411 ,  F01N2900/1631 ,  F02D41/0255 ,  F02D41/1445 ,  F02D41/1446 ,  F02D41/222 ,  F02D2200/0614 ,  Y02A50/2325 ,  Y02T10/24 ,  Y02T10/26 ,  Y02T10/47

    Abstract: A method is disclosed for regulating an exhaust after-treatment (AT) system for a diesel engine. The method includes detecting the engine's cold start when the engine's exhaust gas flow directed into the AT system is at a temperature below a threshold value. The method also includes determining flow-rates of the engine's exhaust gas and its fuel supply. The method additionally includes determining a magnitude of exhaust gas energy using the determined exhaust gas flow-rates and the fuel supply over an elapsed time following the cold start. The method also includes integrating a detected temperature of the exhaust gas over the elapsed time and comparing the determined magnitude of exhaust gas energy with the integrated temperature. Furthermore, the method includes regulating operation of the AT system using the determined exhaust gas temperature when the determined magnitude of exhaust gas energy is within a predetermined value of the integrated exhaust gas temperature.

    Abstract translation: 公开了一种用于调节用于柴油发动机的排气后处理（AT）系统的方法。 该方法包括当引导到AT系统的发动机排气流处于低于阈值的温度时检测发动机的冷启动。 该方法还包括确定发动机废气及其燃料供应的流量。 该方法还包括使用确定的废气流量和在冷启动之后的经过时间内的燃料供应来确定废气能量的大小。 该方法还包括将废气的检测温度与经过的时间相结合，并将所确定的废气能量的大小与积分温度进行比较。 此外，该方法包括当确定的废气能量的大小在综合废气温度的预定值内时，使用确定的废气温度来调节AT系统的操作。

    Cold start emissions reduction diagnostic system for an internal combustion engine
    10.
    发明授权
    Cold start emissions reduction diagnostic system for an internal combustion engine 有权
    内燃机冷启动减排诊断系统

    公开(公告)号：US09506414B2

    公开(公告)日：2016-11-29

    申请号：US14043274

    申请日：2013-10-01

    Applicant: GM Global Technology Operations LLC

    Inventor： Steve L. Melby ,  Kevin J. McKay

    IPC: F02D28/00 ,  F02D41/06 ,  F02D41/14 ,  F02D41/40

    CPC classification number: F02D41/064 ,  F02D41/1462 ,  F02D41/401 ,  F02D2041/1413 ,  F02D2041/1433 ,  F02D2041/1437 ,  F02D2200/021 ,  Y02T10/44

    Abstract: A cold start emissions reduction diagnostic system for an internal combustion engine includes a coolant temperature module including a coolant temperature input, and a memory module having a coolant temperature look-up table. The cold start controller also includes a cold start emissions reduction module configured to selectively compare coolant temperature values with desired emission values in the look-up table to determine at least one of a fuel injection timing and a fuel injection quantity to establish a desired cold start emissions profile. A fuel injection monitoring module is configured and disposed to sense changes in fuel injection timing and fuel injection quantity, and an emission reduction diagnostic model module is configured and disposed to determine emission parameters based on the changes in the one of the fuel injection timing and fuel injection quantity sensed by the fuel injection monitoring module during a cold start.

    Abstract translation: 用于内燃机的冷启动减排诊断系统包括包括冷却剂温度输入的冷却剂温度模块和具有冷却剂温度查找表的存储模块。 冷启动控制器还包括冷启动排放减少模块，其被配置为选择性地将冷却剂温度值与查找表中的期望发射值进行比较，以确定燃料喷射正时和燃料喷射量中的至少一个以建立期望的冷启动 排放情况。 燃料喷射监测模块被配置和设置为检测燃料喷射正时和燃料喷射量的变化，并且配置和设置排放减少诊断模型模块，以基于燃料喷射正时和燃料中的一个的变化来确定发射参数 在冷启动期间由燃料喷射监测模块感测的喷射量。

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