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    Dual-loop control systems and methods for a sequential turbocharger
    1.
    发明授权
    Dual-loop control systems and methods for a sequential turbocharger 有权
    用于顺序涡轮增压器的双回路控制系统和方法

    公开(公告)号：US08468821B2

    公开(公告)日：2013-06-25

    申请号：US12621808

    申请日：2009-11-19

    申请人： Zhiping Steven Liu ,  Anupam Gangopadhyay

    发明人： Zhiping Steven Liu ,  Anupam Gangopadhyay

    IPC分类号： F02D23/00

    CPC分类号： F02D41/0007 ,  F02B37/004 ,  F02B37/013 ,  F02B37/16 ,  F02B37/18 ,  F02B37/24 ,  F02D41/1401 ,  F02D41/1448 ,  F02D41/18 ,  F02D2041/1418 ,  F02D2200/0406 ,  F02D2200/1002 ,  Y02T10/144

    摘要： A system for a sequential turbocharger includes a loop control module, a set-point module, and a loop operation module. The loop control module generates a loop control mode signal based on an engine speed signal and an engine load signal. The loop control mode signal indicates one of a single-loop control mode and a dual-loop control mode. The set-point selection module determines at least one of a boost pressure set-point value and an exhaust pressure set-point value based on the loop control mode signal, the engine speed signal, and an engine torque signal. The loop operation module operates at least one of a variable geometry turbine and a bypass valve of the sequential turbocharger during the single-loop control mode based on the boost pressure set-point value, and during the dual-loop control mode based on the boost pressure set-point value and the exhaust pressure set-point value.

    摘要翻译： 用于顺序涡轮增压器的系统包括回路控制模块，设定点模块和循环操作模块。 回路控制模块基于发动机转速信号和发动机负载信号产生回路控制模式信号。 环路控制模式信号指示单回路控制模式和双回路控制模式之一。 设定点选择模块基于回路控制模式信号，发动机转速信号和发动机扭矩信号来确定升压压力设定值和排气压力设定值中的至少一个。 循环操作模块在单回路控制模式期间基于升压压力设定点值以及在基于升压的双回路控制模式期间操作顺序涡轮增压器的可变几何涡轮机和旁通阀中的至少一个 压力设定值和排气压力设定值。

    Mode transition systems and methods for a sequential turbocharger
    3.
    发明授权
    Mode transition systems and methods for a sequential turbocharger 有权
    用于顺序涡轮增压器的模式转换系统和方法

    公开(公告)号：US08302397B2

    公开(公告)日：2012-11-06

    申请号：US12539357

    申请日：2009-08-11

    申请人： Zhiping Steven Liu ,  B. Jerry Song ,  Anupam Gangopadhyay ,  Ping Ge

    发明人： Zhiping Steven Liu ,  B. Jerry Song ,  Anupam Gangopadhyay ,  Ping Ge

    IPC分类号： F02D23/00 ,  F02B33/44 ,  F02B33/00

    CPC分类号： F02D41/0007 ,  F02D41/1401 ,  F02D2041/1409 ,  F02D2041/141 ,  F02D2200/0406 ,  F02D2200/1002 ,  Y02T10/144

    摘要： A system for a sequential turbocharger includes a mode selection module, a feed-forward selection module, and a control loop module. The mode selection module generates a control mode signal based on an engine speed signal, an engine torque signal, and an engine mode signal. The control mode signal indicates one of an open-loop control mode and a closed-loop control mode. The feed-forward selection module determines a feed-forward value based on the control mode signal, the engine speed signal, and the engine torque signal. The control loop module determines a loop control value at least one of based on the feed-forward value, a variable geometry turbine (VGT) control signal, and an error signal; and based on a bypass valve (BPV) control signal and the error signal when the control mode signal transitions from the open-loop control mode to the closed-loop control mode.

    摘要翻译： 用于顺序涡轮增压器的系统包括模式选择模块，前馈选择模块和控制回路模块。 模式选择模块基于发动机转速信号，发动机转矩信号和发动机模式信号生成控制模式信号。 控制模式信号指示开环控制模式和闭环控制模式之一。 前馈选择模块基于控制模式信号，发动机转速信号和发动机扭矩信号来确定前馈值。 控制回路模块基于前馈值，可变几何涡轮机（VGT）控制信号和误差信号来确定回路控制值中的至少一个; 并且当控制模式信号从开环控制模式转换到闭环控制模式时，基于旁路阀（BPV）控制信号和误差信号。

    DUAL-LOOP CONTROL SYSTEMS AND METHODS FOR A SEQUENTIAL TURBOCHARGER
    4.
    发明申请
    DUAL-LOOP CONTROL SYSTEMS AND METHODS FOR A SEQUENTIAL TURBOCHARGER 有权
    双循环控制系统和顺序涡轮增压器的方法

    公开(公告)号：US20110113773A1

    公开(公告)日：2011-05-19

    申请号：US12621808

    申请日：2009-11-19

    申请人： Zhiping Steven Liu ,  Anupam Gangopadhyay

    发明人： Zhiping Steven Liu ,  Anupam Gangopadhyay

    IPC分类号： F02D23/00

    CPC分类号： F02D41/0007 ,  F02B37/004 ,  F02B37/013 ,  F02B37/16 ,  F02B37/18 ,  F02B37/24 ,  F02D41/1401 ,  F02D41/1448 ,  F02D41/18 ,  F02D2041/1418 ,  F02D2200/0406 ,  F02D2200/1002 ,  Y02T10/144

    摘要： A system for a sequential turbocharger includes a loop control module, a set-point module, and a loop operation module. The loop control module generates a loop control mode signal based on an engine speed signal and an engine load signal. The loop control mode signal indicates one of a single-loop control mode and a dual-loop control mode. The set-point selection module determines at least one of a boost pressure set-point value and an exhaust pressure set-point value based on the loop control mode signal, the engine speed signal, and an engine torque signal. The loop operation module operates at least one of a variable geometry turbine and a bypass valve of the sequential turbocharger during the single-loop control mode based on the boost pressure set-point value, and during the dual-loop control mode based on the boost pressure set-point value and the exhaust pressure set-point value.

    摘要翻译： 用于顺序涡轮增压器的系统包括回路控制模块，设定点模块和循环操作模块。 回路控制模块基于发动机转速信号和发动机负载信号产生回路控制模式信号。 环路控制模式信号指示单回路控制模式和双回路控制模式之一。 设定点选择模块基于回路控制模式信号，发动机转速信号和发动机扭矩信号来确定升压压力设定值和排气压力设定值中的至少一个。 循环操作模块在单回路控制模式期间基于升压压力设定点值以及在基于升压的双回路控制模式期间操作顺序涡轮增压器的可变几何涡轮机和旁通阀中的至少一个 压力设定值和排气压力设定值。

    System and method for controlling a two-stage series sequential turbocharger using bypass valve leakage control
    5.
    发明授权
    System and method for controlling a two-stage series sequential turbocharger using bypass valve leakage control 有权
    使用旁通阀泄漏控制控制两级串联式涡轮增压器的系统和方法

    公开(公告)号：US08276378B2

    公开(公告)日：2012-10-02

    申请号：US12507455

    申请日：2009-07-22

    申请人： B. Jerry Song ,  Ping Ge ,  Zhiping Steven Liu ,  Anupam Gangopadhyay

    发明人： B. Jerry Song ,  Ping Ge ,  Zhiping Steven Liu ,  Anupam Gangopadhyay

    IPC分类号： F02D23/00 ,  F02G3/00 ,  F02B33/44

    CPC分类号： F02D41/0007 ,  F01D17/16 ,  F02B29/0406 ,  F02B37/004 ,  F02B37/013 ,  F02B37/127 ,  F02B37/18 ,  F02B37/22 ,  F02C6/12 ,  F02D23/02 ,  F02D41/064 ,  F02D41/1446 ,  F02D41/1461 ,  F02D41/1463 ,  F02D41/401 ,  F02D2041/001 ,  F02D2200/501 ,  F02D2200/602 ,  F02M26/08 ,  F02M26/10 ,  F02M26/25 ,  Y02T10/144

    摘要： A method of controlling a turbocharger for an engine and a control system for the same includes a variable nozzle turbine control module operating a variable nozzle turbine of a high pressure turbocharger closed loop in a first load-engine speed region. The system also includes a high pressure turbine bypass valve control module operating a high pressure turbine bypass valve in a closed position in a first load-engine speed region. The variable nozzle turbine control module operates a variable nozzle turbine closed loop in a second load-engine speed region between the first load-speed region and a third load speed region. The high pressure turbine bypass valve module operates the high pressure turbine bypass valve in a transient region in the second load-engine speed region. The variable nozzle turbine control module operates the variable nozzle turbine open loop. The high pressure turbine bypass valve control module operates a high pressure turbine bypass valve in an open position in a third load-engine speed region.

    摘要翻译： 一种控制用于发动机的涡轮增压器的方法和用于其的控制系统的方法包括在第一负载发动机转速区域中操作高压涡轮增压器闭环的可变喷嘴涡轮机的可变喷嘴涡轮机控制模块。 该系统还包括高压涡轮旁通阀控制模块，其操作在第一负载 - 发动机转速区域中处于关闭位置的高压涡轮旁通阀。 可变喷嘴涡轮机控制模块在第一负载速度区域和第三负载速度区域之间的第二负载发动机速度区域中操作可变喷嘴涡轮机闭环。 高压涡轮旁通阀模块在第二负载发动机转速区域的过渡区域中操作高压汽轮机旁通阀。 可变喷嘴涡轮机控制模块操作可变喷嘴涡轮开环。 高压涡轮旁通阀控制模块在第三负载 - 发动机转速区域中的打开位置操作高压涡轮旁通阀。

    Ammonia storage set-point control for selective catalytic reduction applications
    6.
    发明授权
    Ammonia storage set-point control for selective catalytic reduction applications 有权
    用于选择性催化还原应用的氨储存设定点控制

    公开(公告)号：US09133749B2

    公开(公告)日：2015-09-15

    申请号：US12579737

    申请日：2009-10-15

    申请人： Kevin Andrew Gady ,  Anupam Gangopadhyay

    发明人： Kevin Andrew Gady ,  Anupam Gangopadhyay

    IPC分类号： F01N3/00 ,  F01N3/20 ,  F01N3/10 ,  F01N13/00

    CPC分类号： F01N3/208 ,  F01N3/103 ,  F01N3/105 ,  F01N13/009 ,  F01N2560/026 ,  F01N2560/06 ,  F01N2560/14 ,  F01N2610/02 ,  F01N2900/1402 ,  F01N2900/1616 ,  F01N2900/1622 ,  Y02T10/24

    摘要： A system includes an injector control module and an SCR optimization module. The injector control module controls an amount of ammonia (NH3) stored in a selective catalytic reduction (SCR) catalyst to maintain a first storage level. The SCR optimization module determines whether the first storage level maximizes a conversion efficiency of the SCR catalyst at a first temperature and minimizes a probability of NH3 slip when the temperature of the SCR catalyst transitions from the first temperature to a second temperature. The injector control module controls the amount of NH3 stored in the SCR catalyst to maintain a second storage level when the second storage level maximizes the efficiency of the SCR catalyst relative to the first storage level and minimizes the probability of NH3 slip relative to the first storage level.

    摘要翻译： 系统包括喷射器控制模块和SCR优化模块。 喷射器控制模块控制存储在选择性催化还原（SCR）催化剂中的氨（NH 3）的量以保持第一储存水平。 SCR优化模块确定第一存储级别是否在第一温度下使SCR催化剂的转换效率最大化，并且当SCR催化剂的温度从第一温度转变到第二温度时，最小化NH3滑移的概率。 当第二储存水平使SCR催化剂相对于第一储存水平的效率最大化时，喷射器控制模块控制存储在SCR催化剂中的NH 3的量以保持第二储存水平，并使相对于第一储存器NH3滑动的概率最小化 水平。

    Nitrogen oxide estimation downstream of a selective catalytic reduction catalyst
    7.
    发明授权
    Nitrogen oxide estimation downstream of a selective catalytic reduction catalyst 有权
    选择性催化还原催化剂下游的氮氧化物估计

    公开(公告)号：US08061126B2

    公开(公告)日：2011-11-22

    申请号：US12417962

    申请日：2009-04-03

    申请人： Kevin Andrew Gady ,  Anupam Gangopadhyay

    发明人： Kevin Andrew Gady ,  Anupam Gangopadhyay

    IPC分类号： F01N3/20

    CPC分类号： B01D53/9495 ,  B01D53/30 ,  B01D53/9409 ,  B01D53/9477 ,  B01D2251/2062 ,  B01D2251/2067 ,  B01D2255/20723 ,  B01D2255/50 ,  B01D2258/012 ,  B01D2258/014 ,  F01N3/208 ,  F01N2560/021 ,  F01N2560/026 ,  F01N2560/14 ,  F01N2610/146 ,  F01N2900/1402 ,  F01N2900/1616 ,  F01N2900/1622 ,  Y02T10/24

    摘要： A dosing control system comprises a selective catalytic reduction (SCR) analysis module, a dosing management module, an adjustment module, and an error module. The SCR analysis module estimates ammonia (NH3) stored by an SCR catalyst, a maximum NH3 storage capacity of the SCR catalyst, and a nitrogen oxides (NOx) measurement for a NOx sensor downstream of the SCR catalyst. The dosing management module controls dosing agent injection upstream of the SCR catalyst based on the maximum NH3 storage capacity and the NH3 stored. The adjustment module outputs an adjusted estimate of the NOx measurement based on the estimate of the NOx measurement, cross-sensitivity of the NOx sensor, and a delay period for exhaust flow. The error module selectively adjusts at least one of the NH3 stored and the maximum NH3 storage capacity based on a difference between the adjusted estimate and NOx measured by the NOx sensor.

    摘要翻译： 计量控制系统包括选择性催化还原（SCR）分析模块，剂量管理模块，调节模块和错误模块。 SCR分析模块估计由SCR催化剂储存的氨（NH 3），SCR催化剂的最大NH 3储存容量和SCR催化剂下游的NOx传感器的氮氧化物（NOx）测量。 计量管理模块基于最大NH 3储存容量和存储的NH 3控制SCR催化剂上游的定量剂注入。 调节模块基于NOx测量的估计，NOx传感器的交叉敏感度和排气流的延迟时段输出调整的NOx测量的估计。 误差模块基于由NOx传感器测量的调整后的估计值和NOx之间的差异，选择性地调节NH 3储存容量和最大NH 3储存容量中的至少一个。