Injector control performance diagnostic systems
    41.
    发明授权
    Injector control performance diagnostic systems 有权
    注射器控制性能诊断系统

    公开(公告)号:US07856867B2

    公开(公告)日:2010-12-28

    申请号:US12366955

    申请日:2009-02-06

    IPC分类号: G01M15/00

    摘要: A diagnostic system for a fuel injector control system according to the present disclosure includes a plurality of state monitoring modules and a fault determination module. The plurality of state monitoring module monitor a plurality of states of a driver circuit for a fuel injector based on data samples related to the plurality of states. The fault determination module diagnoses a fault in the driver circuit when at least one of the plurality of state monitoring modules receives a predetermined number of data samples indicating an undesired state within a sampling interval.

    摘要翻译: 根据本公开的用于燃料喷射器控制系统的诊断系统包括多个状态监视模块和故障确定模块。 多个状态监视模块基于与多个状态相关的数据样本监视燃料喷射器的驱动器电路的多个状态。 当多个状态监视模块中的至少一个在采样间隔内接收到指示不期望状态的预定数量的数据样本时,故障确定模块诊断驱动器电路中的故障。

    DIAGNOSTIC SYSTEMS AND METHODS FOR A PRESSURE SENSOR DURING DRIVING CONDITIONS
    42.
    发明申请
    DIAGNOSTIC SYSTEMS AND METHODS FOR A PRESSURE SENSOR DURING DRIVING CONDITIONS 有权
    驾驶条件下压力传感器的诊断系统和方法

    公开(公告)号:US20100274462A1

    公开(公告)日:2010-10-28

    申请号:US12509686

    申请日:2009-07-27

    IPC分类号: F02D41/00 G01M15/04

    CPC分类号: F02M63/022

    摘要: A diagnostic system includes a fuel pump module and a diagnostic control module. The fuel pump module activates a first pump when an engine is operating in a diagnostic mode. The first pump supplies fuel to fuel injectors of the engine via a fuel rail. The diagnostic control module receives a measured pressure signal from a pressure sensor that indicates a pressure of the fuel rail during the diagnostic mode. The fuel pump module sends at least one of a first and a second commanded fuel pressure signal to the first pump based on a predetermined relief pressure of a pressure relief valve. The diagnostic control module detects a fault of the pressure sensor based on an engine speed and a comparison between the measured pressure signal and at least one of the first commanded fuel pressure signal and a corrected relief pressure of the pressure relief valve.

    摘要翻译: 诊断系统包括燃料泵模块和诊断控制模块。 当发动机在诊断模式下操作时,燃料泵模块激活第一泵。 第一个泵通过燃油轨向燃油喷射器供给燃料。 诊断控制模块在诊断模式期间接收来自压力传感器的测量的压力信号,该压力传感器指示燃料轨的压力。 燃料泵模块基于压力释放阀的预定释放压力将第一和第二命令燃料压力信号中的至少一个发送到第一泵。 诊断控制模块基于发动机速度和测量的压力信号与第一命令燃料压力信号中的至少一个和压力释放阀的校正的溢流压力之间的比较来检测压力传感器的故障。

    DIAGNOSTIC SYSTEMS AND METHODS FOR A PRESSURE SENSOR DURING IDLE CONDITIONS
    43.
    发明申请
    DIAGNOSTIC SYSTEMS AND METHODS FOR A PRESSURE SENSOR DURING IDLE CONDITIONS 有权
    空调条件下压力传感器的诊断系统和方法

    公开(公告)号:US20100269791A1

    公开(公告)日:2010-10-28

    申请号:US12509653

    申请日:2009-07-27

    IPC分类号: F02M69/46 F02M69/54 F04B49/00

    CPC分类号: F02M63/022

    摘要: A diagnostic system for a pressure sensor includes a fuel pump module and a diagnostic control module. The fuel pump module activates a first pump and deactivates a second pump when an engine is operating in a diagnostic mode. The first pump supplies fuel to the second pump and the second pump supplies fuel to fuel injectors of the engine via a fuel rail. The diagnostic control module receives a measured pressure signal from a pressure sensor that indicates a pressure of the fuel rail during the diagnostic mode. The diagnostic control module detects a fault of the pressure sensor based on a comparison between the measured pressure signal and the commanded pressure signal for the first pump.

    摘要翻译: 用于压力传感器的诊断系统包括燃料泵模块和诊断控制模块。 当发动机在诊断模式下操作时,燃料泵模块激活第一泵并且停用第二泵。 第一泵向第二泵供应燃料,第二泵通过燃料轨将燃料供给发动机的燃料喷射器。 诊断控制模块在诊断模式期间接收来自压力传感器的测量的压力信号,该压力传感器指示燃料轨的压力。 诊断控制模块基于测量的压力信号和第一泵的指令压力信号之间的比较来检测压力传感器的故障。

    INTAKE AIR TEMPERATURE SENSOR DIAGNOSTIC SYSTEMS WITH ADAPTIVE LEARNING MODULES
    45.
    发明申请
    INTAKE AIR TEMPERATURE SENSOR DIAGNOSTIC SYSTEMS WITH ADAPTIVE LEARNING MODULES 有权
    采用适应性学习模块摄入空气温度传感器诊断系统

    公开(公告)号:US20100010722A1

    公开(公告)日:2010-01-14

    申请号:US12179682

    申请日:2008-07-25

    IPC分类号: G06F19/00

    摘要: A diagnostic system for an internal combustion engine includes an intake air temperature (IAT) determination module, a reference temperature determination module, and an adaptive learning module. The IAT determination modules determines a first IAT using an IAT sensor at a first time and determines a second IAT using the IAT sensor at a second time. The reference temperature determination module determines a first frequency based on a first voltage output of a MAF sensor at the first time and determines a second frequency based on a second voltage output of the MAF sensor at the second time. The adaptive learning module determines a temperature-frequency relationship based on the first IAT, the second IAT, the first frequency and the second frequency.

    摘要翻译: 一种用于内燃机的诊断系统包括进气温度(IAT)确定模块,参考温度确定模块和自适应学习模块。 IAT确定模块在第一时间使用IAT传感器确定第一IAT,并且在第二时间使用IAT传感器确定第二IAT。 参考温度确定模块基于第一次MAF传感器的第一电压输出确定第一频率,并且在第二时间基于MAF传感器的第二电压输出确定第二频率。 自适应学习模块基于第一IAT,第二IAT,第一频率和第二频率确定温度 - 频率关系。

    Intake air temperature sensor diagnostic
    46.
    发明授权
    Intake air temperature sensor diagnostic 有权
    进气温度传感器诊断

    公开(公告)号:US07644608B2

    公开(公告)日:2010-01-12

    申请号:US12116360

    申请日:2008-05-07

    IPC分类号: G01M15/00

    摘要: An intake air temperature (IAT) sensor diagnostic module comprises a measured noise module, an expected noise module, an excess noise module, and an IAT fault detection module. The measured noise module measures noise in an IAT signal from an IAT sensor in a vehicle. The expected noise module determines expected noise based upon the IAT signal. The excess noise module determines an excess noise value based upon the measured noise and the expected noise. The IAT fault detection module diagnoses faults in the IAT sensor based upon a comparison of the excess noise value and a first predetermined value.

    摘要翻译: 进气温度(IAT)传感器诊断模块包括测量的噪声模块,预期噪声模块,过量噪声模块和IAT故障检测模块。 测量的噪声模块测量来自车辆中的IAT传感器的IAT信号中的噪声。 预期的噪声模块基于IAT信号来确定预期的噪声。 过剩噪声模块基于测量的噪声和预期噪声来确定过量噪声值。 IAT故障检测模块基于过剩噪声值与第一预定值的比较来诊断IAT传感器中的故障。

    INTAKE AIR TEMPERATURE SENSOR DIAGNOSTIC
    49.
    发明申请
    INTAKE AIR TEMPERATURE SENSOR DIAGNOSTIC 有权
    摄入空气温度传感器诊断

    公开(公告)号:US20090100921A1

    公开(公告)日:2009-04-23

    申请号:US12116360

    申请日:2008-05-07

    IPC分类号: G01M15/00

    摘要: An intake air temperature (IAT) sensor diagnostic module comprises a measured noise module, an expected noise module, an excess noise module, and an IAT fault detection module. The measured noise module measures noise in an IAT signal from an IAT sensor in a vehicle. The expected noise module determines expected noise based upon the IAT signal. The excess noise module determines an excess noise value based upon the measured noise and the expected noise. The IAT fault detection module diagnoses faults in the IAT sensor based upon a comparison of the excess noise value and a first predetermined value.

    摘要翻译: 进气温度(IAT)传感器诊断模块包括测量的噪声模块,预期噪声模块,过量噪声模块和IAT故障检测模块。 测量的噪声模块测量来自车辆中的IAT传感器的IAT信号中的噪声。 预期的噪声模块基于IAT信号来确定预期的噪声。 过剩噪声模块基于测量的噪声和预期噪声来确定过量噪声值。 IAT故障检测模块基于过剩噪声值和第一预定值的比较来诊断IAT传感器中的故障。

    Liquid fuel detection system
    50.
    发明授权
    Liquid fuel detection system 失效
    液体燃料检测系统

    公开(公告)号:US07472015B2

    公开(公告)日:2008-12-30

    申请号:US11560997

    申请日:2006-11-17

    IPC分类号: F02D41/04 F02D41/14 G06F19/00

    摘要: A liquid fuel detection system for a fuel vapor system of a vehicle providing fuel vapor to an engine operating in closed loop includes an oxygen sensor that generates an oxygen signal based on an oxygen level in engine exhaust. An engine speed sensor generates a speed signal based on a speed of the engine. And a control module receives the oxygen signal and the speed signal, determines a fuel control factor based on the oxygen signal, determines a long term modifier based on long term changes of the fuel control factor, and detects the presence of liquid fuel in the fuel vapor system based on the fuel control factor, the speed signal, and the long term modifier.

    摘要翻译: 一种用于为在闭合回路中运行的发动机提供燃料蒸汽的车辆的燃料蒸气系统的液体燃料检测系统包括氧传感器,其基于发动机排气中的氧气水平产生氧气信号。 发动机速度传感器基于发动机的速度产生速度信号。 并且控制模块接收氧气信号和速度信号,基于氧信号确定燃料控制因子,基于燃料控制因子的长期变化确定长期修正器,并且检测燃料中液体燃料的存在 基于燃料控制因子,速度信号和长期改进剂的蒸汽系统。