中科微点-全球专利检索

  1. Login
  2. Sign Up

Search Results

9 records (took 0.021 seconds)

    METHOD FOR MONITORING CATALYTIC CONVERTER PERFORMANCE
    1.
    发明申请
    METHOD FOR MONITORING CATALYTIC CONVERTER PERFORMANCE 审中-公开
    监测催化转化器性能的方法

    公开(公告)号：WO1998026164A1

    公开(公告)日：1998-06-18

    申请号：PCT/US1997018812

    申请日：1997-10-15

    Applicant: MOTOROLA INC.

    Inventor： MOTOROLA INC. ,  NABER, Jeffrey, D. ,  REMBOSKI, Donald, J., Jr.

    IPC: F01N03/20

    CPC classification number: F01N11/007 ,  F01N11/00 ,  F01N2550/02 ,  F01N2900/0421 ,  F01N2900/0422 ,  Y02T10/47

    Abstract: A method for monitoring the performance of a catalytic converter includes the monitoring of output from a first gas sensor (16) positioned upstream from a catalytic converter (12) and a second gas sensor (18) located at a position downstream from the catalytic converter (12). An engine controller (20) receives the output of the first and second gas sensors (16, 18) and also receives estimates of the exhaust gas mass flow rate and the catalyst temperature within the catalytic converter (12). The exhaust gas mass flow rate and the catalyst temperature are used to calculate a mass transfer coefficient that is determinative of the conversion efficiency of the catalytic converter (12). A monitoring parameter is determined using the output of the first and second gas sensors (16, 18), and the monitoring parameter is normalized to the coefficient. The engine controller (20) then accumulates a data set and compares the values of the data set with previously programmed pass/fail criteria to determine the performance of the catalytic converter (12).

    Abstract translation: 用于监测催化转化器性能的方法包括监测来自位于催化转化器（12）上游的第一气体传感器（16）的输出和位于催化转化器下游位置的第二气体传感器（18） 12）。 发动机控制器（20）接收第一和第二气体传感器（16,18）的输出，并且还接收催化转化器（12）内废气质量流量和催化剂温度的估计。 废气质量流量和催化剂温度用于计算确定催化转化器（12）的转化效率的传质系数。 使用第一和第二气体传感器（16,18）的输出来确定监测参数，并且将监测参数归一化为系数。 然后，发动机控制器（20）累积数据组，并将数据集的值与先前编程的通过/不合格标准进行比较，以确定催化转化器（12）的性能。

    MISFIRE DETECTION IN AN INTERNAL COMBUSTION ENGINE
    2.
    发明申请
    MISFIRE DETECTION IN AN INTERNAL COMBUSTION ENGINE 审中-公开
    内燃机中的MISFIRE检测

    公开(公告)号：WO2005017803A1

    公开(公告)日：2005-02-24

    申请号：PCT/US2004/022092

    申请日：2004-07-09

    Applicant: MOTOROLA, INC. ,  LIU, Louis, Yizhang ,  GILBERT, Richard, J. ,  KULTGEN, Donald, P. ,  NABER, Jeffrey, D. ,  YANG, Hanlong

    Inventor： LIU, Louis, Yizhang ,  GILBERT, Richard, J. ,  KULTGEN, Donald, P. ,  NABER, Jeffrey, D. ,  YANG, Hanlong

    IPC: G06F19/00

    CPC classification number: G01M15/11

    Abstract: A method and system for a misfire detection acquires (301) a series of acceleration data (302) representative of acceleration behavior of an engine. The data is sampled (304) to obtain acceleration data samples at a rate sufficient to obtain up to fourth-order perturbations of the data. The samples are filtered (322) to provide bandwidth limited samples, which are provided to at least two channels (325, 329). The samples are pattern matched (332) in a first channel to enhance harmonic phenomena and pattern canceled (330) in a second channel to enhance random phenomena. Hard and random misfires are detected (334) dependent on a magnitude of the filtered acceleration data samples. Preferably, a third channel (335) is added to detect multiple misfires.

    Abstract translation: 用于失火检测的方法和系统获取（301）代表发动机的加速行为的一系列加速度数据（302）。 数据被采样（304）以获得加速度数据样本，其速率足以获得数据的高达四阶扰动。 对样本进行滤波（322）以提供带宽限制的样本，其被提供给至少两个信道（325,329）。 样品在第一通道中被模式匹配（332）以增强第二通道中的谐波现象和模式取消（330），以增强随机现象。 检测到硬和随机的失火（334），这取决于滤波的加速度数据样本的大小。 优选地，添加第三通道（335）以检测多次失火。

    TRACKING CONTROL FOR ELECTRONIC THROTTLE SYSTEMS
    3.
    发明申请
    TRACKING CONTROL FOR ELECTRONIC THROTTLE SYSTEMS 审中-公开
    电子液压系统跟踪控制

    公开(公告)号：WO2003012559A1

    公开(公告)日：2003-02-13

    申请号：PCT/US2002/018667

    申请日：2002-06-12

    Applicant: MOTOROLA, INC. A CORPORATION OF THE STATE OF DELAWARE

    Inventor： YANG, Hanlong ,  LIU, Louis, Yizhang ,  NABER, Jeffrey, D.

    IPC: G05B13/02

    CPC classification number: F02D11/105 ,  F02D41/1403 ,  F02D2011/102 ,  F02D2041/1409 ,  F02D2041/141 ,  F02D2200/0404 ,  G05B13/0255

    Abstract: An electronic throttle controller (200) includes a feedforward control (222), a PID (224), a sliding mode control (226) and an adder (230). The PID (224) is capable of generating a first feedback term that compensates for an error signal. The sliding mode control (226) is capable of generating a second feedback term that incorporates a solution to a Lyapunov equation applied to the error signal with sliding gain being updated by an estimation of unknown dynamics. The adder (230) adds the first feedback term, the second feedback term and the feedforwardcontrol (222) so as to generate a control signal (232).

    Abstract translation: 电子节气门控制器（200）包括前馈控制（222），PID（224），滑动模式控制（226）和加法器（230）。 PID（224）能够产生补偿误差信号的第一反馈项。 滑动模式控制（226）能够产生第二反馈项，其包含对应用于误差信号的Lyapunov方程的解，其中滑动增益被未知动力学的估计更新。 加法器（230）将第一反馈项，第二反馈项和前馈控制（222）相加以产生控制信号（232）。

    MISFIRE DETECTION IN AN INTERNAL COMBUSTION ENGINE
    8.
    发明公开
    MISFIRE DETECTION IN AN INTERNAL COMBUSTION ENGINE 审中-公开
    内燃机污秽检测

    公开(公告)号：EP1652124A1

    公开(公告)日：2006-05-03

    申请号：EP04756839.9

    申请日：2004-07-09

    Applicant: MOTOROLA, INC.

    Inventor： LIU, Louis, Yizhang ,  GILBERT, Richard, J. ,  KULTGEN, Donald, P. ,  NABER, Jeffrey, D. ,  YANG, Hanlong

    IPC: G06F19/00 ,  G06G7/70

    CPC classification number: G01M15/11

    Abstract: A method and system for a misfire detection acquires (301) a series of acceleration data (302) representative of acceleration behavior of an engine. The data is sampled (304) to obtain acceleration data samples at a rate sufficient to obtain up to fourth-order perturbations of the data. The samples are filtered (322) to provide bandwidth limited samples, which are provided to at least two channels (325, 329). The samples are pattern matched (332) in a first channel to enhance harmonic phenomena and pattern canceled (330) in a second channel to enhance random phenomena. Hard and random misfires are detected (334) dependent on a magnitude of the filtered acceleration data samples. Preferably, a third channel (335) is added to detect multiple misfires.

    Abstract translation: 用于失火检测的方法和系统获取（301）表示发动机的加速行为的一系列加速度数据（302）。 对数据进行采样（304）以获得足以获得数据的高达四阶扰动的速率的加速度数据样本。 样本被过滤（322）以提供带宽有限的样本，其被提供给至少两个信道（325,329）。 样本在第一信道中被模式匹配（332）以增强谐波现象并且在第二信道中消除（330）以增强随机现象。 根据滤波的加速度数据采样的大小来检测（334）硬和随机失火。 优选地，添加第三通道（335）以检测多次失火。

    METHOD FOR MONITORING CATALYTIC CONVERTER PERFORMANCE
    9.
    发明公开
    METHOD FOR MONITORING CATALYTIC CONVERTER PERFORMANCE 失效
    一种用于控制催化剂的操作

    公开(公告)号：EP0883737A1

    公开(公告)日：1998-12-16

    申请号：EP97911781.0

    申请日：1997-10-15

    Applicant: MOTOROLA INC.

    Inventor： NABER, Jeffrey, D. ,  REMBOSKI, Donald, J., Jr.

    IPC: F01N11

    CPC classification number: F01N11/007 ,  F01N11/00 ,  F01N2550/02 ,  F01N2900/0421 ,  F01N2900/0422 ,  Y02T10/47

    Abstract: A method for monitoring the performance of a catalytic converter includes the monitoring of output from a first gas sensor (16) positioned upstream from a catalytic converter (12) and a second gas sensor (18) located at a position downstream from the catalytic converter (12). An engine controller (20) receives the output of the first and second gas sensors (16, 18) and also receives estimates of the exhaust gas mass flow rate and the catalyst temperature within the catalytic converter (12). The exhaust gas mass flow rate and the catalyst temperature are used to calculate a mass transfer coefficient that is determinative of the conversion efficiency of the catalytic converter (12). A monitoring parameter is determined using the output of the first and second gas sensors (16, 18), and the monitoring parameter is normalized to the coefficient. The engine controller (20) then accumulates a data set and compares the values of the data set with previously programmed pass/fail criteria to determine the performance of the catalytic converter (12).

Patent Agency Ranking