Engine pre-throttle pressure estimation
    2.
    发明授权
    Engine pre-throttle pressure estimation 有权
    发动机节气门前压力估计

    公开(公告)号:US07305301B1

    公开(公告)日:2007-12-04

    申请号:US11464340

    申请日:2006-08-14

    IPC分类号: G06F19/00 F02D41/00

    摘要: An engine control system for regulating operation of an engine having a throttle includes a first module that determines an intermediate parameter based on engine operating parameters and a second module that determines a pressure upstream of the throttle based on the intermediate parameter. A third module regulates operation of the engine based on the pressure. The engine operation is regulated based on a pre-determined relationship between a throttle position and an effective throttle area.

    摘要翻译: 一种用于调节具有节气门的发动机的操作的发动机控制系统包括:第一模块,其基于发动机操作参数确定中间参数;以及第二模块,其基于所述中间参数确定所述节气门上游的压力。 第三个模块基于压力来调节发动机的运行。 基于节气门位置和有效节流区域之间的预定关系来调节发动机运转。

    Testing a fuel tank vacuum sensor
    3.
    发明授权
    Testing a fuel tank vacuum sensor 有权
    测试油箱真空传感器

    公开(公告)号:US07373799B2

    公开(公告)日:2008-05-20

    申请号:US10965379

    申请日:2004-10-14

    IPC分类号: G01M3/34

    摘要: A method of determining whether a vacuum/pressure sensor in a vehicle fuel tank correctly indicates a vacuum level in the tank. An input from the sensor is obtained. The tank is sealed for a predetermined time period. After the time period, another input is obtained from the sensor and the sensor inputs are compared.

    摘要翻译: 确定车辆燃料箱中的真空/压力传感器是否正确地指示罐中的真空水平的方法。 获得传感器的输入。 罐被密封预定的时间段。 在该时间段之后,从传感器获得另一个输入,并比较传感器输入。

    Door swing detection and protection
    4.
    发明授权
    Door swing detection and protection 有权
    门摆动检测和保护

    公开(公告)号:US07280035B2

    公开(公告)日:2007-10-09

    申请号:US10873926

    申请日:2004-06-22

    IPC分类号: B60Q1/00 B60J5/00

    摘要: Methods and apparatus are provided for reducing the occurrence of vehicle door bumps against an adjacent object facing the door. The apparatus comprises one or more distance sensors mounted on the vehicle for measuring distance D from the door to the object, a brake for inhibiting outward movement of the door toward the object, a warning system and a controller coupled to the distance sensors, warning system and brake for applying the brake to inhibit further outward movement of the door when D≦D(MIN), a predetermined minimum distance away from the object. In a preferred embodiment, a first driver warning is activated when the initial door-to-object spacing D(INIT)≦D(SAFE), the maximum outward door reach. A second warning is desirably added when the door begins moving toward the object or has reached about (D(INIT))/2 and a third warning is activated when the brake is engaged.

    摘要翻译: 提供的方法和装置用于减少相对于面对门的相邻物体的车门凸起的发生。 该装置包括安装在车辆上的一个或多个距离传感器,用于测量从门到物体的距离D;制动器,用于禁止门朝向物体的向外移动;警告系统和耦合到距离传感器的警报系统 并且当D <= D(MIN)时离开物体预定的最小距离,用于施加制动以阻止门进一步向外移动的制动器。 在优选实施例中,当初始门到门间距D(INIT)<= D(SAFE),最大向外门到达时,第一驾驶员警告被激活。 当门开始朝向物体移动或达到约(D(INIT))/ 2,并且当制动器接合时第三个警告被激活,则希望添加第二个警告。

    Intermittent sensor detection using signal string length
    5.
    发明授权
    Intermittent sensor detection using signal string length 有权
    使用信号串长度进行间歇传感器检测

    公开(公告)号:US08416053B2

    公开(公告)日:2013-04-09

    申请号:US12436408

    申请日:2009-05-06

    IPC分类号: G05B23/02

    CPC分类号: G05B9/02 G05B23/0235

    摘要: An engine control system comprises a signal deviation module, a variation determination module, and a sensor diagnostic module. The signal deviation module receives a signal from a sensor monitoring an operating condition of an engine and determines a plurality of signal deviations. Each of the plurality of signal deviations is based on a magnitude of a difference between the signal at a first time and the signal at a second time. The second time is different than the first time. The variation determination module generates a variation value based on the plurality of signal deviations during a period. The sensor diagnostic module determines a state of the sensor based on the variation value.

    摘要翻译: 发动机控制系统包括信号偏差模块,变化确定模块和传感器诊断模块。 信号偏差模块接收来自传感器的信号,监测发动机的运行状态并确定多个信号偏差。 多个信号偏差中的每一个基于第一时间的信号与第二时间的信号之间的差值的大小。 第二次与第一次不同。 变化确定模块在一段时间内基于多个信号偏差生成变化值。 传感器诊断模块基于变化值来确定传感器的状态。

    Intake air temperature sensor diagnostic systems with adaptive learning modules
    6.
    发明授权
    Intake air temperature sensor diagnostic systems with adaptive learning modules 有权
    进气温度传感器诊断系统具有自适应学习模块

    公开(公告)号:US07886585B2

    公开(公告)日:2011-02-15

    申请号:US12179682

    申请日:2008-07-25

    IPC分类号: G01M15/04

    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 rationality diagnostic
    7.
    发明授权
    Intake air temperature rationality diagnostic 有权
    进气温度合理性诊断

    公开(公告)号:US07369937B1

    公开(公告)日:2008-05-06

    申请号:US11821590

    申请日:2007-06-22

    IPC分类号: F02D45/00 G06F19/00

    摘要: A method of determining whether a fault condition of an intake air temperature (IAT) sensor of an engine is present includes estimating a first intake charge temperature (ICT) based on an estimated first ICT and a previously estimated first mass air flow (MAF) and estimating a second ICT based on a previously estimated second ICT and a currently measured MAF. An IAT difference is determined based on the first ICT and the second ICT. Whether the fault condition of the IAT sensor is present is determined based on the IAT difference.

    摘要翻译: 确定发动机的进气温度(IAT)传感器的故障状况是否存在的方法包括基于估计的第一ICT和先前估计的第一质量空气流(MAF)来估计第一进气充量温度(ICT)和 基于先前估计的第二ICT和当前测量的MAF估计第二ICT。 IAT的差异是基于第一个ICT和第二个ICT确定的。 基于IAT差异确定​​IAT传感器的故障状态是否存在。

    Intake air temperature diagnostic system
    8.
    发明授权
    Intake air temperature diagnostic system 失效
    进气温度诊断系统

    公开(公告)号:US08234038B2

    公开(公告)日:2012-07-31

    申请号:US11945608

    申请日:2007-11-27

    IPC分类号: G01M17/00 B63B35/73 F02M23/08

    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。

    Detection of Engine Intake Manifold Air-Leaks
    9.
    发明申请
    Detection of Engine Intake Manifold Air-Leaks 有权
    检测发动机进气歧管空气泄漏

    公开(公告)号:US20090187301A1

    公开(公告)日:2009-07-23

    申请号:US12015750

    申请日:2008-01-17

    IPC分类号: F02D41/00 F02D35/02

    摘要: A method of determining an engine intake air leak may include measuring an air flow rate into an internal combustion engine, comparing the measured air flow rate to a first predetermined air flow limit, calculating an estimated air flow rate into the engine when the measured air flow rate is less than the first predetermined air flow limit, comparing the estimated air flow rate to second and third predetermined air flow limits, and indicating an air leak when the estimated air flow rate is greater than the second predetermined air flow limit and less than the third predetermined air flow limit.

    摘要翻译: 确定发动机进气泄漏的方法可以包括测量进入内燃机的空气流量,将测量的空气流量与第一预定空气流量限制进行比较,计算当测量的空气流量时进入发动​​机的估计空气流量 速率小于第一预定空气流量限制,将估计的空气流量与第二和第三预定空气流量限制进行比较,并且当估计空气流量大于第二预定空气流量限制时指示空气泄漏,并且小于 第三预定气流限制。

    Intake air temperature rationality diagnostic
    10.
    发明申请
    Intake air temperature rationality diagnostic 有权
    进气温度合理性诊断

    公开(公告)号:US20080319600A1

    公开(公告)日:2008-12-25

    申请号:US11821591

    申请日:2007-06-22

    IPC分类号: G06F19/00

    摘要: A method of determining whether a fault condition of an intake air temperature (IAT) sensor of an engine is present includes estimating a first manifold absolute pressure (MAP) based on a previously estimated first MAP and an estimated first mass air flow (MAF) as a function of the previously estimated first MAP and estimating a second MAP based on a previously estimated second MAP and a currently measured MAF. An IAT difference is determined based on the first MAP and the second MAP. Whether the fault condition of the IAT sensor is present is determined based on the IAT difference.

    摘要翻译: 确定发动机的进气温度(IAT)传感器的故障状况是否存在的方法包括基于先前估计的第一MAP和估计的第一质量空气流(MAF)估计第一歧管绝对压力(MAP)作为 预先估计的第一MAP的功能,并且基于先前估计的第二MAP和当前测量的MAF来估计第二MAP。 基于第一MAP和第二MAP确定IAT差异。 基于IAT差异确定​​IAT传感器的故障状态是否存在。