公开(公告)号：US6026786A

公开(公告)日：2000-02-22

申请号：US896645

申请日：1997-07-18

申请人： William T. Groff ,  Stephen R. Lewis ,  David C. Mack ,  Robert R. Patterson

发明人： William T. Groff ,  Stephen R. Lewis ,  David C. Mack ,  Robert R. Patterson

IPC分类号： F02D41/24 ,  F02D41/40 ,  F02M57/02 ,  F02M59/10 ,  F02M59/36 ,  F02M59/44 ,  F02M37/04 ,  F02M51/00

CPC分类号： F02M59/44 ,  F02D41/2403 ,  F02D41/2406 ,  F02D41/40 ,  F02M57/023 ,  F02M59/102 ,  F02M59/366 ,  Y02T10/44

摘要： A method of controlling a fuel injector assembly of an internal combustion engine includes the stop of generating a first injection pulse with an engine control module. The method also includes the step of injecting fuel into a cylinder of the engine in response to generation of the first injection pulse. The method further includes the step of detecting when fuel is injected into the cylinder and generating a control signal in response thereto. Moreover, the method includes the step of determining a time period between generation of the first injection pulse and generation of the control signal. The method also includes the step of adjusting initiation of a second injection pulse based on the time period. An apparatus for controlling a fuel injector assembly of an internal combustion engine is also disclosed.

摘要翻译： 控制内燃机的燃料喷射器组件的方法包括停止与发动机控制模块产生第一喷射脉冲。 该方法还包括响应于第一喷射脉冲的产生将燃料喷射到发动机气缸中的步骤。 该方法还包括检测燃料何时被注入到气缸中并响应于此产生控制信号的步骤。 此外，该方法包括确定第一喷射脉冲的产生和控制信号的产生之间的时间段的步骤。 该方法还包括基于时间段调整第二喷射脉冲的启动的步骤。 还公开了一种用于控制内燃机的燃料喷射器组件的装置。

公开(公告)号：US5583290A

公开(公告)日：1996-12-10

申请号：US359520

申请日：1994-12-20

申请人： Stephen R. Lewis

发明人： Stephen R. Lewis

IPC分类号： G01P15/125 ,  G01P15/13 ,  G01P21/00 ,  G01P15/00

CPC分类号： G01P15/125 ,  G01P15/131 ,  G01P21/00

摘要： A micromechanical sensing apparatus includes a micromechanical sensor having a stationary element and a movable element which are electrically conductive, and a sensing circuit responsive to the micromechanical sensor for generating an output indicative of a sensed quantity. The sensing circuit may have a closed loop configuration or an open loop configuration. The sensing apparatus further includes an actuation circuit for applying to the micromechanical sensor an actuation signal, such as a test signal, for electrostatically deflecting the movable element relative to stationary element. The actuation circuit includes circuitry for limiting the bandwidth of the actuation signal such that the deflection of the movable element does not exceed maximum deflection limits. In the closed loop configuration, the bandwidth of the actuation signal is preferably limited to less than or equal to the closed loop bandwidth of the sensing circuit. As a result, electrostatic capture and/or contact between the movable element and the stationary element is prevented.

摘要翻译： 微机械感测装置包括具有导电的固定元件和可移动元件的微机械传感器，以及响应于微机械传感器以产生指示感测量的输出的感测电路。 感测电路可以具有闭环配置或开环配置。 感测装置还包括用于向微机械传感器施加致动信号（例如测试信号）的致动电路，用于使可移动元件相对于静止元件静电偏转。 致动电路包括用于限制致动信号的带宽使得可移动元件的偏转不超过最大偏转极限的电路。 在闭环配置中，致动信号的带宽优选地被限制为小于或等于感测电路的闭环带宽。 结果，可以防止可动元件和固定元件之间的静电捕获和/或接触。

公开(公告)号：US4804960A

公开(公告)日：1989-02-14

申请号：US106714

申请日：1987-10-08

申请人： John W. Fernandes ,  Gerald A. Miller ,  Andrew M. Mallinson ,  Stephen R. Lewis

发明人： John W. Fernandes ,  Gerald A. Miller ,  Andrew M. Mallinson ,  Stephen R. Lewis

IPC分类号： H03M1/14 ,  H03M1/00 ,  H03M1/34

CPC分类号： H03M1/0695 ,  H03M1/0682 ,  H03M1/162 ,  H03M1/363

摘要： A 12-bit sub-ranging A/D converter which operates through four successive sub-ranging cycles with an 8:1 gain change between the cycles. The residue signal for each cycle is directed to a four-bit flash converter the output of which sets the latches for corresponding bit-current-sources of a DAC. The flash converter input circuit comprises identical residue and reference amplifiers driving symmetrical residue and reference networks for controlling the flash converter comparators. The DAC output for each cycle is compared with the analog input signal to produce a corresponding new residue signal. There are 15 bit-current-sources, three for the first cycle, and four for each of the last three cycles. The MSB of each group of four bit-current sources is an overlap bit having the same current weighting as the LSB of the preceding group. Setting of the overlap bit makes it possible to develop a correct output for the DAC for each of the 2nd through 4th cycles without altering bits already determined in previous cycles. The converter provides an optional 5th cycle making possible a 14-bit output or an increased yield of 12-bit converters.

摘要翻译： 一个12位子范围A / D转换器，通过四个连续的子测距周期操作，周期之间的增益为8：1。 每个周期的残留信号指向一个四位闪存转换器，其输出为DAC的相应位电流源设置锁存器。 闪存转换器输入电路包括相同的残留和参考放大器，驱动对称的残留和参考网络，用于控制闪存转换器比较器。 将每个周期的DAC输出与模拟输入信号进行比较，以产生相应的新的残留信号。 有15个位电流源，第一个周期有三个，最后三个周期中有四个。 每组4位电流源的MSB是具有与前一组的LSB相同的当前权重的重叠位。 重叠位的设置使得可以在第2到第4个周期的每一个周期内为DAC开发正确的输出，而不改变在先前周期中已经确定的位。 该转换器提供可选的第5个周期，使得14位输出或增加的12位转换器的产量成为可能。