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15 条记录 (耗时 0.013 秒)

    Enforced Zero Voltage Loop
    2.
    发明申请
    Enforced Zero Voltage Loop 有权
    强制零电压回路

    公开(公告)号：US20150028788A1

    公开(公告)日：2015-01-29

    申请号：US13951068

    申请日：2013-07-25

    申请人： Caterpillar, Inc.

    发明人： Jackson Wai ,  Ahmed Khalil ,  Carlos Nino Baron ,  Jesse Gerdes ,  Brad A. Kough

    IPC分类号： H02P27/06

    CPC分类号： H02P27/06 ,  H02P25/0925

    摘要： A method of controlling a motor is provided. The method may determine one of a switching period, a fundamental cycle, and a current target per phase leg of the motor having at least one high voltage transition point; determine a dwell period to be enforced at the transition point between an engagement of a first switch of the phase leg and an engagement of a second switch of the phase leg where each of the first switch and the second switch may be selectively engageable between a first state and a second state; engage the first switch from the first state to the second state at the transition point; and engage the second switch from the first state to the second state after the transition point and upon expiration of the dwell period.

    摘要翻译： 提供一种控制电动机的方法。 该方法可以确定具有至少一个高电压转变点的电动机的开关周期，基本周期和每相支路的当前目标之一; 确定在所述相腿的第一开关的接合和所述相腿的第二开关的接合之间的过渡点处的停留时段，其中所述第一开关和所述第二开关中的每一个可以选择性地接合在第一 状态和第二状态; 在转换点将第一开关从第一状态转移到第二状态; 并且在转换点之后并且在停留时段期满时将第二开关从第一状态转移到第二状态。

    Sensorless Control of Switched Reluctance Machines for Low Speeds and Standstill
    3.
    发明申请
    Sensorless Control of Switched Reluctance Machines for Low Speeds and Standstill 审中-公开
    用于低速和静止的开关磁阻机的无传感器控制

    公开(公告)号：US20150381087A1

    公开(公告)日：2015-12-31

    申请号：US14314510

    申请日：2014-06-25

    申请人： Caterpillar Inc.

    发明人： Seok-hee Han ,  Carlos Nino Baron ,  Jackson Wai ,  Ahmed Khalil ,  Ernesto Inoa ,  Jesse Gerdes ,  James Michael Thorne

    IPC分类号： H02P6/18

    CPC分类号： H02P6/185 ,  H02P6/18 ,  H02P25/08 ,  H02P25/089 ,  H02P27/06

    摘要： A method for determining rotor position of a switched reluctance (SR) machine having a rotor and a stator is provided. The method may include injecting a test pulse into one or more idle phases of the SR machine, determining a decoupled flux value based at least partially on a total flux value corresponding to the test pulse and a mutual flux value, and determining the rotor position based at least partially on the decoupled flux value.

    摘要翻译： 提供了一种用于确定具有转子和定子的开关磁阻（SR）机器的转子位置的方法。 该方法可以包括将测试脉冲注入到SR机器的一个或多个空闲阶段中，至少部分地基于对应于测试脉冲的总通量值和相互通量值来确定解耦通量值，并且基于转子位置确定 至少部分地取决于解耦通量值。

    Enforced zero voltage loop
    4.
    发明授权
    Enforced zero voltage loop 有权
    强制零电压回路

    公开(公告)号：US09099954B2

    公开(公告)日：2015-08-04

    申请号：US13951068

    申请日：2013-07-25

    申请人： Caterpillar, Inc.

    发明人： Jackson Wai ,  Ahmed Khalil ,  Carlos Nino Baron ,  Jesse Gerdes ,  Brad A Kough

    IPC分类号： H02P1/00 ,  H02P3/00 ,  H02P27/06

    CPC分类号： H02P27/06 ,  H02P25/0925

    摘要： A method of controlling a motor is provided. The method may determine one of a switching period, a fundamental cycle, and a current target per phase leg of the motor having at least one high voltage transition point; determine a dwell period to be enforced at the transition point between an engagement of a first switch of the phase leg and an engagement of a second switch of the phase leg where each of the first switch and the second switch may be selectively engageable between a first state and a second state; engage the first switch from the first state to the second state at the transition point; and engage the second switch from the first state to the second state after the transition point and upon expiration of the dwell period.

    摘要翻译： 提供一种控制电动机的方法。 该方法可以确定具有至少一个高电压转变点的电动机的开关周期，基本周期和每相支路的当前目标之一; 确定在所述相腿的第一开关的接合和所述相腿的第二开关的接合之间的过渡点处的停留时段，其中所述第一开关和所述第二开关中的每一个可以选择性地接合在第一 状态和第二状态; 在转换点将第一开关从第一状态转移到第二状态; 并且在转换点之后并且在停留时段期满时将第二开关从第一状态转移到第二状态。

    Switched reluctance initial rotor position estimation
    5.
    发明授权
    Switched reluctance initial rotor position estimation 有权
    开关磁阻初始转子位置估计

    公开(公告)号：US08866433B2

    公开(公告)日：2014-10-21

    申请号：US13664623

    申请日：2012-10-31

    申请人： Caterpillar Inc.

    发明人： Jesse Gerdes ,  Jackson Wai ,  Mark Hartman ,  Ahmed Khalil ,  Carlos Nino Baron

    IPC分类号： H02P6/00 ,  H02P6/18 ,  H02P25/08

    CPC分类号： H02P6/182 ,  H02P25/083 ,  H02P25/089 ,  H02P2203/01 ,  H02P2203/03

    摘要： A method of estimating an initial rotor position of a switched reluctance (SR) machine having a rotor and a stator is provided. The method may comprise the steps of driving a phase current in each of a plurality of phases of the SR machine to a predefined limit, performing an integration of a common bus voltage associated with each phase, determining a flux value for each phase based on the integrations, and determining the initial rotor position based on the flux values.

    摘要翻译： 提供了一种估计具有转子和定子的开关磁阻（SR）机器的初始转子位置的方法。 该方法可以包括以下步骤：将SR机器的多个相位中的每一相中的相电流驱动到预定义的极限，执行与每个相位相关联的公共总线电压的积分，基于该相位确定每个相位的磁通值 并且基于通量值确定初始转子位置。

    Hybrid Soft Switching for Current Regulation in Switched Reluctance Machines
    8.
    发明申请
    Hybrid Soft Switching for Current Regulation in Switched Reluctance Machines 审中-公开
    开关磁阻电机电流调节的混合软开关

    公开(公告)号：US20160248362A1

    公开(公告)日：2016-08-25

    申请号：US14626635

    申请日：2015-02-19

    申请人： CATERPILLAR INC.

    发明人： Carlos Nino Baron ,  Ernesto Inoa ,  Jackson Wai ,  Jesse Gerdes ,  Ahmed Khalil

    IPC分类号： H02P25/08

    CPC分类号： H02P25/08 ,  H02P25/089

    摘要： A method of regulating a phase current of an electric motor is provided. The method may include selectively enabling one or more switches of each phase of the electric motor according to one of at least a soft chopping motoring routine and a soft chopping generating routine, monitoring the phase current relative to a first hysteresis band, controlling the switches according to the soft chopping motoring routine when the phase current exceeds the first hysteresis band while operating according to the soft chopping generating routine, and controlling the switches according to the soft chopping generating routine when the phase current exceeds the first hysteresis band while operating according to the soft chopping motoring routine.

    摘要翻译： 提供一种调节电动机的相电流的方法。 该方法可以包括根据至少软斩波电动程序和软斩波产生程序中的至少一个选择性地启用电动机的每个相的一个或多个开关，监测相对于第一滞后带的相电流，根据 根据软斩波产生程序在相电流超过第一滞后频带的同时，根据软斩波产生程序在相电流超过第一滞后频带时控制开关，同时根据 软斩动作程序。

    System and Method to Control a Switched Reluctance Machine in Continuous Conduction
    10.
    发明申请
    System and Method to Control a Switched Reluctance Machine in Continuous Conduction 有权
    控制连续传导中开关磁阻机的系统和方法

    公开(公告)号：US20160087570A1

    公开(公告)日：2016-03-24

    申请号：US14492988

    申请日：2014-09-22

    申请人： Caterpillar Inc.

    发明人： Jackson Wai ,  Carlos Nino Baron ,  Jesse Gerdes ,  Ahmed Khalil

    IPC分类号： H02P25/08

    CPC分类号： H02P25/08 ,  B60L15/007 ,  B60L2200/36 ,  B60L2200/40 ,  B60L2220/18 ,  B60L2240/421 ,  B60L2240/423 ,  B60L2240/526 ,  H02P25/083 ,  Y02T10/644 ,  Y02T10/645 ,  Y02T10/7258 ,  Y02T90/16

    摘要： A control system for a switched reluctance (SR) machine is disclosed. The SR machine may have a rotor and a stator. The control system may have a converter circuit operatively coupled to the stator and including a plurality of gates in selective communication with each phase of the stator, and a controller in communication with each of the stator and the converter circuit. The controller may be configured to command a fixed dwell of a theta-on angle and a theta-off angle and a varying current command to the plurality of gates when the SR machine is in a continuous conduction mode.

    摘要翻译： 公开了一种用于开关磁阻（SR）机器的控制系统。 SR机器可以具有转子和定子。 控制系统可以具有可操作地耦合到定子并且包括与定子的每个相位选择性地连通的多个栅极的转换器电路以及与每个定子和转换器电路连通的控制器。 控制器可以被配置为当SR机器处于连续导通模式时，将θ-on角度和θ-off角度以及变化电流指令的固定驻留命令给多个门。