CHANNEL ESTIMATING METHOD IN WIRELESS COMMUNICATION SYSTEM AND APPARATUS THEREOF
    21.
    发明申请
    CHANNEL ESTIMATING METHOD IN WIRELESS COMMUNICATION SYSTEM AND APPARATUS THEREOF 有权
    无线通信系统中的信道估计方法及其设备

    公开(公告)号:US20100158173A1

    公开(公告)日:2010-06-24

    申请号:US12616980

    申请日:2009-11-12

    IPC分类号: H04B15/00 H04B17/00 H04B1/10

    摘要: Provided is a method and system for estimating a channel in a wireless communication system. An interference coefficient is calculated based on a known structure of a pilot, and a channel value in a frequency domain is estimated. A channel value in a time domain is obtained by transforming the channel value in the frequency domain and the channel delay values are subtracted from the channel value in the time domain, thereby cancelling interference.

    摘要翻译: 提供了一种用于估计无线通信系统中的信道的方法和系统。 基于导频的已知结构计算干扰系数,估计频域中的信道值。 通过对频域中的信道值进行变换来获得时域中的信道值,并且从时域中的信道值中减去信道延迟值,从而消除干扰。

    METHOD AND APPARATUS FOR DETECTING SIGNAL
    22.
    发明申请
    METHOD AND APPARATUS FOR DETECTING SIGNAL 失效
    检测信号的方法和装置

    公开(公告)号:US20100144302A1

    公开(公告)日:2010-06-10

    申请号:US12631426

    申请日:2009-12-04

    IPC分类号: H04B1/06

    摘要: In a method for detecting a signal in a multi-input multi-output wireless communication system that receives signals transmitted through a plurality of transmission antennas by using a plurality of reception antennas, a detection order for detecting the transmission signals received through the reception antennas is determined on the basis of a cofactor determinant of components constituting a channel matrix representing characteristics of channels between the transmission antennas and the reception antennas. In addition, the transmission signal is detected from the signals received through the reception antennas in accordance with the determined detection order.

    摘要翻译: 在通过使用多个接收天线接收通过多个发送天线发送的信号的多输入多输出无线通信系统中的信号检测方法中,检测通过接收天线接收的发送信号的检测顺序是 基于构成表示发送天线和接收天线之间的信道的特性的信道矩阵的分量的辅因子行列式确定。 此外,根据确定的检测顺序,从通过接收天线接收的信号检测发送信号。

    Method for on-board diagnosis of cold start emissions reduction control strategy
    23.
    发明授权
    Method for on-board diagnosis of cold start emissions reduction control strategy 有权
    冷启动减排控制策略车载诊断方法

    公开(公告)号:US07630826B2

    公开(公告)日:2009-12-08

    申请号:US11673870

    申请日:2007-02-12

    IPC分类号: G06F19/00 G01M15/10

    摘要: A diagnostic cold start emissions control system for an internal combustion engine includes a control module having a calculated engine-out energy module, an engine-out energy residual module, and a diagnostic system evaluation module. The calculated engine-out energy module is in communication with the engine-out energy residual module and is configured to determine an operating engine-out energy flow based on an operating engine torque. The engine-out energy residual module is in communication with the diagnostic system evaluation module and is configured to determine an engine-out energy residual based on the determined engine-out energy flow and an expected engine-out energy flow. The diagnostic system evaluation module is configured to determine whether the determined engine-out energy residual meets a predetermined value indicative of proper cold start emissions control.

    摘要翻译: 用于内燃机的诊断冷启动排放控制系统包括具有计算的发动机输出能量模块,发动机输出能量残余模块和诊断系统评估模块的控制模块。 所计算的发动机输出能量模块与发动机输出能量残余模块通信,并且被配置为基于操作发动机扭矩来确定操作发动机输出的能量流。 发动机输出能量残余模块与诊断系统评估模块通信,并且被配置为基于所确定的发动机输出能量流和预期发动机输出能量流来确定发动机输出能量残余。 诊断系统评估模块被配置为确定确定的发动机输出能量残余是否满足指示适当的冷启动排放控制的预定值。

    WIND CONDITION BASED VAPOR LEAK DETECTION TEST
    24.
    发明申请
    WIND CONDITION BASED VAPOR LEAK DETECTION TEST 有权
    基于风条件的蒸汽泄漏检测测试

    公开(公告)号:US20090293599A1

    公开(公告)日:2009-12-03

    申请号:US12132192

    申请日:2008-06-03

    IPC分类号: G01M3/00 F02M33/02

    CPC分类号: F02M25/0827

    摘要: A control system comprising a wind condition determination module that determines a wind condition and a leak detection test control module that selectively diagnoses a vapor leak associated with a vehicle based on the wind condition. A method comprising determining a wind condition and selectively diagnosing a vapor leak associated with a vehicle based on the wind condition.

    摘要翻译: 一种控制系统,包括确定风况的风况确定模块和基于风况选择性地诊断与车辆相关联的蒸气泄漏的泄漏检测测试控制模块。 一种方法,包括基于风况确定风况并选择性地诊断与车辆相关联的蒸气泄漏。

    INTAKE AIR TEMPERATURE SENSOR DIAGNOSTIC SYSTEM AND METHOD
    26.
    发明申请
    INTAKE AIR TEMPERATURE SENSOR DIAGNOSTIC SYSTEM AND METHOD 有权
    摄入空气温度传感器诊断系统及方法

    公开(公告)号:US20090235725A1

    公开(公告)日:2009-09-24

    申请号:US12051062

    申请日:2008-03-19

    IPC分类号: G01F1/68 G01K15/00

    摘要: An intake air temperature (IAT) sensor diagnostic system may include an IAT determination module, a mass air flow (MAF) module, and a diagnostic module. The IAT determination module determines a measured IAT based on an IAT sensor. The MAF module determines a reference temperature based on a MAF sensor. The diagnostic module determines faults in the IAT sensor based on a comparison between the reference temperature and the measured IAT.

    摘要翻译: 进气温度(IAT)传感器诊断系统可以包括IAT确定模块,大气流(MAF)模块和诊断模块。 IAT确定模块基于IAT传感器确定测量的IAT。 MAF模块基于MAF传感器确定参考温度。 诊断模块基于参考温度和测量的IAT之间的比较来确定IAT传感器中的故障。

    INTAKE AIR TEMPERATURE DIAGNOSTIC SYSTEM
    27.
    发明申请
    INTAKE AIR TEMPERATURE DIAGNOSTIC SYSTEM 失效
    摄入空气温度诊断系统

    公开(公告)号:US20090138154A1

    公开(公告)日:2009-05-28

    申请号:US11945608

    申请日:2007-11-27

    IPC分类号: G01M15/00

    摘要: A method of evaluating intake air temperature (IAT) sensor rationality may include measuring a first intake air temperature associated with an engine using an IAT sensor when the engine is in a non-operating condition, determining a second intake air temperature associated with the engine using a hot wire air flow meter when the engine is in the non-operating condition, and indicating an IAT sensor fault when a difference between the first and second intake air temperatures exceeds a predetermined temperature limit.

    摘要翻译: 评估进气温度(IAT)传感器理性的方法可以包括:当发动机处于非运行状态时,使用IAT传感器测量与发动机相关联的第一进气温度,确定与发动机相关联的第二进气温度 当发动机处于非运行状态时,热线空气流量计,当第一和第二进气温度之间的差超过预定温度极限时,指示IAT传感器故障。

    Intake air over-restriction monitoring
    28.
    发明授权
    Intake air over-restriction monitoring 失效
    进气过度限制监测

    公开(公告)号:US07441450B2

    公开(公告)日:2008-10-28

    申请号:US11669414

    申请日:2007-01-31

    IPC分类号: G01M15/00

    摘要: A method of monitoring air flow restriction in an air intake of an internal combustion engine includes monitoring a plurality of manifold absolute pressure (MAP) samples and determining respective MAP thresholds corresponding to each of the MAP samples. Each of the MAP samples is compared to its respective MAP threshold. A percentage of failed MAP samples is determined based on the comparing and an over-restricted air intake condition is selectively indicated based on the percentage of failed MAP samples.

    摘要翻译: 监测内燃机的进气口中的空气流量限制的方法包括监视多个歧管绝对压力(MAP)样本并确定与每个MAP样本对应的各个MAP阈值。 将每个MAP样本与其各自的MAP阈值进行比较。 基于比较确定失败的MAP样本的百分比,并且基于失败的MAP样本的百分比来选择性地指示过度限制的进气条件。

    Charge motion control valve fuzzy logic diagnostic
    29.
    发明授权
    Charge motion control valve fuzzy logic diagnostic 有权
    充电运动控制阀模糊逻辑诊断

    公开(公告)号:US07305298B2

    公开(公告)日:2007-12-04

    申请号:US11402733

    申请日:2006-04-12

    IPC分类号: F02D13/00 B60T7/12

    摘要: A method of diagnosing a malfunction of a charge motion control valve coupled to an intake manifold of an internal combustion engine is provided. The method includes: commanding the valve to at least one of close and open; determining a pressure range using fuzzy logic based on a mass of air flowing into the intake manifold and a temperature of the air flowing into the intake manifold; determining a change in absolute pressure of the intake manifold; comparing the change in absolute pressure to the pressure range; and diagnosing a malfunction of the valve when the change in absolute pressure is within the pressure range.

    摘要翻译: 提供一种诊断与内燃机的进气歧管相连的充气运动控制阀故障的方法。 该方法包括:将阀门指向关闭和打开中的至少一个; 使用基于流入所述进气歧管的空气质量和流入所述进气歧管的空气的温度来确定压力范围; 确定进气歧管的绝对压力的变化; 比较绝对压力与压力范围的变化; 并且当绝对压力的变化在压力范围内时诊断阀的故障。

    Quick EGR flow restriction test based on compensated mass flow differential
    30.
    发明授权
    Quick EGR flow restriction test based on compensated mass flow differential 有权
    基于补偿质量流量差的快速EGR流量限制测试

    公开(公告)号:US07228852B1

    公开(公告)日:2007-06-12

    申请号:US11289946

    申请日:2005-11-30

    IPC分类号: F02M25/07 F02B47/08 G01M15/00

    摘要: An engine control system that monitors flow restriction through an exhaust gas recirculation (EGR) system of an engine includes a first module that calculates a test EGR mass flow rate based on a first average EGR mass flow rate when the EGR system is in an EGR OFF mode and a second average EGR mass flow rate when the EGR system is in an EGR ON mode. A second module selectively generates a fault signal based on the test EGR mass flow rate.

    摘要翻译: 通过发动机的废气再循环(EGR)系统监测流量限制的发动机控制系统包括:第一模块,其在EGR系统处于EGR关闭时基于第一平均EGR质量流量计算测试EGR质量流量 模式和EGR系统处于EGR ON模式时的第二平均EGR质量流量。 第二模块基于测试的EGR质量流率选择性地产生故障信号。