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    Method of determining the derivative of an input signal
    1.
    发明授权
    Method of determining the derivative of an input signal 有权
    确定输入信号的导数的方法

    公开(公告)号：US07587442B2

    公开(公告)日：2009-09-08

    申请号：US10846018

    申请日：2004-05-14

    申请人： William R. Cawthorne ,  Jy-Jen F. Sah

    发明人： William R. Cawthorne ,  Jy-Jen F. Sah

    IPC分类号： G06F7/00

    CPC分类号： G01D3/028

    摘要： The derivative of a noise-containing input signal is determined by using an aliased derivative to periodically reset a filtered version of a normally determined derivative. The aliased derivative is calculated using a slower update or sampling rate than the normally determined derivative, and the filtered version of the normally determined derivative is reset to a reset value at each update of the aliased derivative. The reset value is based on a weighted sum of the aliased derivative and the filter output. The periodically reset filter output closely follows an idealized derivative of the input signal, substantially eliminating the phase delay introduced by conventional filtering.

    摘要翻译： 含噪声输入信号的导数通过使用混叠导数来定期复位正常确定的导数的滤波版本来确定。 使用比正常确定的导数更慢的更新或采样率来计算混叠导数，并且在每个更新别名导数时将正确确定的导数的滤波器版本重置为复位值。 复位值基于混叠导数和滤波器输出的加权和。 周期性复位滤波器输出紧跟输入信号的理想导数，基本上消除了传统滤波引入的相位延迟。

    Multi-stage compression ignition engine start
    4.
    发明授权
    Multi-stage compression ignition engine start 有权
    多级压缩点火发动机起动

    公开(公告)号：US07028657B2

    公开(公告)日：2006-04-18

    申请号：US10846013

    申请日：2004-05-14

    申请人： Jy-Jen F. Sah ,  Gregory A. Hubbard ,  William R. Cawthorne ,  Xuefeng T. Tao ,  Todd M. Steinmetz

    发明人： Jy-Jen F. Sah ,  Gregory A. Hubbard ,  William R. Cawthorne ,  Xuefeng T. Tao ,  Todd M. Steinmetz

    IPC分类号： F02N11/00

    CPC分类号： F02D41/064 ,  F02N11/08 ,  F02N2300/102

    摘要： A powertrain includes a diesel compression engine and an electric machine operatively coupled thereto and effective to rotate the engine during engine cranking. Cold engine cranking is accomplished in a staged manner including a first stage wherein the engine is cranked to a first speed below the resonant speed of the coupled engine and electric machine combination for a first duration and thereafter cranked to a second speed above the resonant speed for a second duration. Transition out of cranking at the first and second speeds is accomplished when relative combustion stability is demonstrated. Cranking at the first or second speed is aborted when excessive crank times or if low battery voltages are observed. A third stage is included wherein the engine is cranked to a third speed below the engine idle speed. Transition out of cranking at the third speed is accomplished when relative combustion stability is demonstrated, whereafter normal engine control takes over.

    摘要翻译： 动力系包括柴油压缩发动机和可操作地联接到其上的电机，并且在发动机起动期间有效地使发动机旋转。 冷发动机起动以分阶段方式实现，包括第一阶段，其中发动机起动至低于联合发动机和电机组合的共振速度的第一速度，并且之后起动至高于谐振速度的第二速度 第二个持续时间。 当相对燃烧稳定性得到证实时，可以以第一和第二速度转换起动。 在超过曲柄时间或观察到电池电压不足时，以第一或第二速度起动。 包括第三级，其中发动机起动至低于发动机怠速转速的第三速度。 当相对燃烧稳定性得到证明时，在第三速度下转变为起动，此后正常的发动机控制接管。

    Method and apparatus for starting an internal combustion engine
    5.
    发明授权
    Method and apparatus for starting an internal combustion engine 有权
    启动内燃机的方法和装置

    公开(公告)号：US08395278B2

    公开(公告)日：2013-03-12

    申请号：US12851123

    申请日：2010-08-05

    申请人： William R. Cawthorne ,  Jy-Jen F. Sah

    发明人： William R. Cawthorne ,  Jy-Jen F. Sah

    IPC分类号： B60R25/04

    CPC分类号： F02N11/0866 ,  F02N2250/02

    摘要： A starting system for an internal combustion engine includes a starter motor configured to transfer torque to the engine during an engine starting event, a low-voltage power bus including a first bus segment and a second bus segment, a controllable isolation circuit including a first state wherein the first and second bus segments are electrically coupled and a second state wherein the first and second bus segments are electrically isolated, a low-voltage battery and the starter motor electrically coupled to the first bus segment, an accessory power module and a power supply for a control module electrically coupled to the second bus segment; and the control module configured to control the isolation circuit to the second state to electrically isolate the first bus segment from the second bus segment during the engine starting event.

    摘要翻译： 一种用于内燃机的起动系统包括起动马达，其构造成在发动机起动事件期间将扭矩传递到发动机，包括第一总线段和第二总线段的低压电力总线，包括第一状态的可控隔离电路 其中所述第一和第二总线段电耦合，以及第二状态，其中所述第一和第二总线段是电隔离的，低电压电池和所述起动电动机电耦合到所述第一总线段，附件电源模块和电源 用于与第二总线段电耦合的控制模块; 并且所述控制模块被配置为将所述隔离电路控制到所述第二状态，以在所述发动机起动事件期间将所述第一总线段与所述第二总线段电隔离。

    METHOD AND APPARATUS FOR STARTING AN INTERNAL COMBUSTION ENGINE
    6.
    发明申请
    METHOD AND APPARATUS FOR STARTING AN INTERNAL COMBUSTION ENGINE 有权
    用于启动内燃机的方法和装置

    公开(公告)号：US20120032506A1

    公开(公告)日：2012-02-09

    申请号：US12851123

    申请日：2010-08-05

    申请人： William R. Cawthorne ,  Jy-Jen F. Sah

    发明人： William R. Cawthorne ,  Jy-Jen F. Sah

    IPC分类号： F02N11/08

    CPC分类号： F02N11/0866 ,  F02N2250/02

    摘要： A starting system for an internal combustion engine includes a starter motor configured to transfer torque to the engine during an engine starting event, a low-voltage power bus including a first bus segment and a second bus segment, a controllable isolation circuit including a first state wherein the first and second bus segments are electrically coupled and a second state wherein the first and second bus segments are electrically isolated, a low-voltage battery and the starter motor electrically coupled to the first bus segment, an accessory power module and a power supply for a control module electrically coupled to the second bus segment; and the control module configured to control the isolation circuit to the second state to electrically isolate the first bus segment from the second bus segment during the engine starting event.

    摘要翻译： 一种用于内燃机的起动系统包括起动马达，其构造成在发动机起动事件期间将扭矩传递到发动机，包括第一总线段和第二总线段的低压电力总线，包括第一状态的可控隔离电路 其中所述第一和第二总线段电耦合，以及第二状态，其中所述第一和第二总线段是电隔离的，低电压电池和所述起动电动机电耦合到所述第一总线段，附件电源模块和电源 用于与第二总线段电耦合的控制模块; 并且所述控制模块被配置为将所述隔离电路控制到所述第二状态，以在所述发动机起动事件期间将所述第一总线段与所述第二总线段电隔离。

    Method for managing electric power in a powertrain system
    7.
    发明授权
    Method for managing electric power in a powertrain system 有权
    在动力系统中管理电力的方法

    公开(公告)号：US08847426B2

    公开(公告)日：2014-09-30

    申请号：US12253985

    申请日：2008-10-19

    申请人： Anthony H. Heap ,  William R. Cawthorne

    发明人： Anthony H. Heap ,  William R. Cawthorne

    IPC分类号： B60K1/02 ,  B60K6/445 ,  B60W10/115 ,  B60W10/26 ,  B60W10/06 ,  B60W10/08 ,  B60W20/00

    CPC分类号： B60W20/10 ,  B60K6/38 ,  B60K6/445 ,  B60W10/06 ,  B60W10/08 ,  B60W10/115 ,  B60W10/26 ,  B60W20/00 ,  B60W2510/02 ,  B60W2510/244 ,  B60W2510/246 ,  B60W2520/28 ,  Y02T10/6239 ,  Y02T10/6286

    摘要： A powertrain system includes a transmission operative to transfer power between a plurality of power actuators and an output member, and an energy storage device. A method for controlling the powertrain system includes establishing a first set of electric power limits and a second set of electric power limits for the energy storage device, determining a preferred input power from a first power actuator based upon the first set of electric power limits, determining a first set of power constraints for constraining input power from the first power actuator and a second set of power constraints for constraining output power from the output member based upon a second set of electric power limits, and controlling operation of the powertrain system based upon the preferred input power, the first set of power constraints, and the second set of power constraints.

    摘要翻译： 动力系统包括可操作以在多个动力致动器和输出构件之间传递动力的变速器和能量存储装置。 一种用于控制动力系统的方法包括建立能量存储装置的第一组电力限制和第二组电力限制，基于第一组电力限制确定来自第一功率致动器的优选输入功率， 确定用于约束来自所述第一功率致动器的输入功率的第一组功率约束和用于基于第二组功率限制来约束来自所述输出构件的输出功率的第二组功率约束，以及基于所述第二组功率约束来控制所述动力系统的运行 优选的输入功率，第一组功率约束和第二组功率约束。