System for estimating a quantity of parasitic leakage from a fuel injection system
    1.
    发明授权
    System for estimating a quantity of parasitic leakage from a fuel injection system 有权
    用于估计来自燃料喷射系统的寄生泄漏量的系统

    公开(公告)号:US06990855B2

    公开(公告)日:2006-01-31

    申请号:US10721662

    申请日:2003-11-25

    IPC分类号: G01M15/00

    摘要: A system for estimating a quantity of parasitic leakage of a fluid from a fluid collection unit includes a pressure sensor and a control circuit. The pressure sensor is coupled to the fluid collection unit and configured to produce a pressure value indicative of the pressure of the fluid collection unit. The control circuit is operable to determine a change in pressure value of the fluid collection unit and estimate the quantity of parasitic leakage based on the change in pressure value. The control circuit may also be operable to determine a bulk modulus value of the fluid and estimate the quantity of parasitic leakage based on the change in pressure value and the bulk modulus value.

    摘要翻译: 用于估计来自流体收集单元的流体的寄生泄漏量的系统包括压力传感器和控制电路。 压力传感器耦合到流体收集单元并被配置成产生指示流体收集单元的压力的压力值。 控制电路可操作以确定流体收集单元的压力值的变化,并且基于压力值的变化来估计寄生泄漏量。 控制电路还可操作以基于压力值和体积模量值的变化来确定流体的体积模量值并估计寄生泄漏量。

    Method and apparatus for engine cylinder balancing using sensed engine
speed
    2.
    发明授权
    Method and apparatus for engine cylinder balancing using sensed engine speed 失效
    用于检测发动机转速的发动机气缸平衡的方法和装置

    公开(公告)号:US6021758A

    公开(公告)日:2000-02-08

    申请号:US979054

    申请日:1997-11-26

    摘要: Manufacturing/design imperfections and component failures in the fuel system/engine can lead to non-uniform torque production among the cylinders. Non-uniform cylinder torques can be observed as small engine speed fluctuations about the average engine speed at any given operating point. Severe imbalance conditions can be heard, felt, and seen by human operators. The present invention uses the fluctuations in engine speed to detect an unbalanced engine and attempts to correct the unbalance by applying trims to the fueling commands for each individual cylinder. The present invention is based on the calculation of a 6-point Fourier Transform (FFT) of engine speed data over one complete engine cycle. This FFT is calculated continuously to provide imbalance detection. An unbalanced engine results in non-zero magnitudes of the FFT components that correspond to the 0.5, 1.0, and 1.5 engine orders. The compensation scheme of the present invention uses iteration to drive the magnitudes of these components to zero if the engine is detected to be unbalanced.

    摘要翻译: 燃油系统/发动机的制造/设计缺陷和部件故障可导致气缸之间的扭矩产生不均匀。 在任何给定的工作点,可以观察到相对于平均发动机转速的小的发动机转速波动,可以观察到不均匀的气缸扭矩。 严重的不平衡状况可以被人类操作者听到,感受和看到。 本发明使用发动机转速的波动来检测不平衡的发动机,并尝试通过对每个单独气缸的加油指令施加修剪来校正不平衡。 本发明基于在一整个发动机循环中计算发动机转速数据的6点傅里叶变换(FFT)。 该FFT被连续计算以提供不平衡检测。 一个不平衡的引擎会导致对应于0.5,1.0和1.5发动机定单的FFT零件的非零幅度。 如果检测到发动机不平衡,则本发明的补偿方案使用迭代来将这些部件的大小驱动为零。

    SYSTEM AND METHOD FOR DETERMINING ANGULAR DIFFERENCES ON A POTENTIALLY MOVING OBJECT
    3.
    发明申请
    SYSTEM AND METHOD FOR DETERMINING ANGULAR DIFFERENCES ON A POTENTIALLY MOVING OBJECT 审中-公开
    用于确定潜在移动对象上的角度差异的系统和方法

    公开(公告)号:US20100332181A1

    公开(公告)日:2010-12-30

    申请号:US11925440

    申请日:2007-10-26

    IPC分类号: G06F15/00 G01B21/24

    CPC分类号: G01B11/27 F41G3/32 G01B9/00

    摘要: A boresight alignment system is disclosed. The system comprises a frame movement sensor operable to determine a reference position on an object, a frame alignment sensor operable to determine a first boresight position on the object, a data acquisition processing unit in communication with the frame movement and frame alignment sensors and a display processing unit in communication with the data acquisition processing unit. The display processing unit is operable to display near real time attitude data measured by the frame movement and frame alignment sensors. The data acquisition processing unit comprises program instructions to correct for angular differences with respect to a reference position.

    摘要翻译: 公开了视轴对准系统。 该系统包括可移动以确定物体上的基准位置的帧移动传感器,可操作以确定物体上的第一视轴位置的帧对准传感器,与帧移动和帧对准传感器通信的数据获取处理单元和显示器 处理单元与数据采集处理单元通信。 显示处理单元可操作以显示由帧移动和帧对准传感器测量的近实时姿势数据。 数据获取处理单元包括用于校正相对于参考位置的角度差的程序指令。

    Vehicle powertrain torsional processing system
    4.
    发明授权
    Vehicle powertrain torsional processing system 有权
    车辆动力总成扭转处理系统

    公开(公告)号:US07171292B2

    公开(公告)日:2007-01-30

    申请号:US10806716

    申请日:2004-03-23

    IPC分类号: G01M17/00

    摘要: A system is disclosed for processing vehicle powertrain torsional information resulting from vibration of the vehicle powertrain. A speed sensor produces a speed signal indicative of rotational speed of one of the powertrain components, and a control computer is operable to determine a magnitude of an Nth-order torsional component of vehicle powertrain vibration as a function of the speed signal. The control computer is further operable to execute either of a diagnostic routine relating to the Nth-order torsional component and a control routine controlling operation of the vehicle powertrain away from conditions at which the magnitude of the Nth-order torsional component exceeds a threshold magnitude if the magnitude of the Nth-order torsional component exceeds the threshold magnitude for at least a first predefined duration.

    摘要翻译: 公开了一种用于处理由车辆动力系的振动引起的车辆动力系扭转信息的系统。 速度传感器产生指示动力系组件之一的转速的速度信号,并且控制计算机可操作以根据速度信号确定车辆动力系振动的N阶扭转分量的大小。 控制计算机还可操作来执行与N阶扭转分量相关的诊断程序中的任一个以及控制车辆动力系的操作的控制程序,其远离N阶扭转分量的大小超过阈值幅度的条件,如果 至少第一预定持续时间,N阶扭转分量的幅度超过阈值幅度。

    System for estimating model parameters
    5.
    发明授权
    System for estimating model parameters 有权
    估计模型参数的系统

    公开(公告)号:US07194392B2

    公开(公告)日:2007-03-20

    申请号:US10691766

    申请日:2003-10-23

    IPC分类号: G06F17/10 G06G7/48

    CPC分类号: G05B17/02

    摘要: A system for estimating on-line a set of mathematical model parameters is disclosed. The system includes a control circuit and a number of sensors electrically coupled to the control circuit. The control circuit is configured to update a group of matrix cells of a data matrix in response to receiving sensory data from the number of sensors and determine the model parameters based on the updated data matrix.

    摘要翻译: 公开了一种用于在线估计一组数学模型参数的系统。 该系统包括电耦合到控制电路的控制电路和多个传感器。 控制电路被配置为响应于从传感器的数量接收感觉数据来更新数据矩阵的一组矩阵单元,并且基于更新的数据矩阵来确定模型参数。

    System for estimating auxiliary-injected fueling quantities
    6.
    发明授权
    System for estimating auxiliary-injected fueling quantities 有权
    用于估计辅助喷射加油量的系统

    公开(公告)号:US06823834B2

    公开(公告)日:2004-11-30

    申请号:US10417829

    申请日:2003-04-17

    IPC分类号: F02B300

    摘要: A system for estimating an auxiliary-injected fuel quantity includes a fuel injector for injecting fuel into an engine, a fuel pump supplying fuel to a fuel collection unit that then supplies fuel to the fuel injector, and a control circuit that generates an auxiliary-injected fuel quantity estimation model by disabling the fuel pump prior to fuel injection, and enabling the fuel pump to resume fuel pumping following fuel injection, by the fuel injector, determines a first pressure in the fuel collection unit after stabilization of the fuel pressure therein following disablement of the fuel pump and prior to the fuel injection, determines a second pressure in the fuel collection unit after the fuel injection and prior to resuming pumping of fuel by the fuel pump, and forms the model as a function of the first and second pressures and an injector on-time for a number of different engine operating conditions.

    摘要翻译: 用于估计辅助喷射燃料量的系统包括用于将燃料喷射到发动机中的燃料喷射器,向向燃料喷射器供应燃料的燃料收集单元供应燃料的燃料泵,以及产生辅助喷射的燃料的控制电路 燃料量估计模型,通过在燃料喷射之前禁用燃料泵,以及使得燃料泵能够通过燃料喷射器在燃料喷射之后恢复燃料泵送,在确定燃料收集单元中的燃料压力之后确定其中的第一压力 并且在燃料喷射之前确定燃料收集单元中的燃料喷射之后的第二压力,并且在由燃料泵重新启动燃料之前确定燃料收集单元中的第二压力,并且作为第一和第二压力的函数形成模型,并且 一个注射器在时间上为许多不同的发动机工作条件。