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公开(公告)号：WO2014201150A1
公开(公告)日：2014-12-18
申请号：PCT/US2014/041963
申请日：2014-06-11
Applicant: RAYTHEON COMPANY
Inventor： GRIFFIN, Eric J. , HERSHBERG, Jerry
CPC classification number: F16H21/18 , F01L9/04 , G01J5/06 , G01J5/0834 , G01J5/62 , G01R31/06 , G03B9/08 , G05B6/02 , H01F7/1844 , H02P7/2913 , Y10T74/18248
Abstract: A drive mechanism (16A, 16B) having a bi-stable motor (18) driving an actuator (22) with a high starting torque, and a slower, regulated velocity as the actuator moves through its range of travel. This advantageously maintains high torque margins at low velocity, and lowers the kinetic energy of the bi-stable actuator at end of travel by limiting the terminal velocity (Wm) and establishing a softer stop. A solenoid may be used in one embodiment. Actual bi-stable motor values are obtained immediately before the move to maintain accurate control of the motor, such as the resistance and inductance of the motor coil. For instance, the bi-stable motor (46) may be driven into a stop (50, 52), and the coil resistance(Rm) may be calculated by sensing current (Im) associated with the calibration voltage (Vd). Inductance (Lm) may be measured similarly by applying low level AC currents. Back-emf is sensed through the coil resistance, and an estimated motor rotation rate is sent to a feedback loop (68) to maintain the desired rate.
Abstract translation: 具有双稳电动机（18）的驱动机构（16A，16B）以高起动转矩驱动致动器（22），并且随着致动器在其行程范围内移动而变慢。 这有利于在低速度下维持高扭矩余量，并且通过限制终端速度（Wm）并建立更软的停止来降低行程结束时双稳态致动器的动能。 在一个实施例中可以使用螺线管。 在移动之前立即获得实际的双稳态电机值，以保持电机的精确控制，如电机线圈的电阻和电感。 例如，双稳电动机（46）可以被驱动到停止（50,52）中，并且可以通过感测与校准电压（Vd）相关联的电流（Im）来计算线圈电阻（Rm）。 可以通过施加低电平AC电流来类似地测量电感（Lm）。 通过线圈电阻感测反电动势，并且将估计的电动机转速发送到反馈回路（68）以保持期望的速率。
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公开(公告)号：WO2014201180A1
公开(公告)日：2014-12-18
申请号：PCT/US2014/042009
申请日：2014-06-11
Applicant: RAYTHEON COMPANY
Inventor： YOSHIDA, Amy M. , KOSTRZEWA, Thomas J. , HUGHES, Eric T. , BREST, Michael L. , GRIFFIN, Eric J. , HERSHBERG, Jerry
CPC classification number: H02P7/29 , G01R31/06 , H01F7/1844
Abstract: A drive mechanism (16A, 16B) configured to drive a thermally isolated actuator (30) between two positions. The drive mechanism includes a rotary actuated motor (18) configured to rotatably drive a motor member (20), and a drive member (22) coupled to the motor member and having a drive arm (24, 42) configured to responsively move from a first position to a second position upon rotation of the motor member. An actuator (30) is responsive to movement of the drive arm (24) moved from the first position to the second position. A drive circuit (60) is configured to generate a pulse width modulated (PWM) drive signal (70) configured to controllably drive the motor, the PWM drive signal having a first duty cycle (Phase 1) configured to advance the drive arm from the first position, and having a second duty cycle (Phase 2) different than the first duty cycle as the drive arm approaches the second position. The drive signal may be removed (Phase3) before the drive arm (42) engages a hard stop (54). The drive mechanism may comprise at least one sensor (40) configured to determine a position of the drive arm (42) proximate the first position and proximate the second position. The actuator is thermally isolated from the drive arm (42) in both the first position and the second position.
Abstract translation: 驱动机构（16A，16B），其构造成在两个位置之间驱动热隔离致动器（30）。 驱动机构包括被配置为可旋转地驱动电动机构件（20）的旋转驱动电动机（18）和联接到电动机构件并具有驱动臂（24,42）的驱动构件（22），驱动臂构造成响应于从 第一位置在马达构件旋转时到达第二位置。 致动器（30）响应于从第一位置移动到第二位置的驱动臂（24）的移动。 驱动电路（60）被配置为产生被配置为可控制地驱动电动机的脉宽调制（PWM）驱动信号（70），PWM驱动信号具有第一占空比（阶段1），其被配置为使驱动臂从 第一位置，并且当驱动臂接近第二位置时具有与第一占空比不同的第二占空比（阶段2）。 可以在驱动臂（42）接合硬停止（54）之前移除驱动信号（阶段3）。 驱动机构可以包括至少一个传感器（40），其被配置为确定驱动臂（42）在第一位置附近并靠近第二位置的位置。 致动器在第一位置和第二位置都与驱动臂（42）热隔离。
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公开(公告)号：EP3008811A1
公开(公告)日：2016-04-20
申请号：EP14739295.5
申请日：2014-06-11
Applicant: Raytheon Company
Inventor： YOSHIDA, Amy M. , KOSTRZEWA, Thomas J. , HUGHES, Eric T. , BREST, Michael L. , GRIFFIN, Eric J. , HERSHBERG, Jerry
CPC classification number: H02P7/29 , G01R31/06 , H01F7/1844
Abstract: A drive mechanism (16A, 16B) configured to drive a thermally isolated actuator (30) between two positions. The drive mechanism includes a rotary actuated motor (18) configured to rotatably drive a motor member (20), and a drive member (22) coupled to the motor member and having a drive arm (24, 42) configured to responsively move from a first position to a second position upon rotation of the motor member. An actuator (30) is responsive to movement of the drive arm (24) moved from the first position to the second position. A drive circuit (60) is configured to generate a pulse width modulated (PWM) drive signal (70) configured to controllably drive the motor, the PWM drive signal having a first duty cycle (Phase 1) configured to advance the drive arm from the first position, and having a second duty cycle (Phase 2) different than the first duty cycle as the drive arm approaches the second position. The drive signal may be removed (Phase3) before the drive arm (42) engages a hard stop (54). The drive mechanism may comprise at least one sensor (40) configured to determine a position of the drive arm (42) proximate the first position and proximate the second position. The actuator is thermally isolated from the drive arm (42) in both the first position and the second position.
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公开(公告)号：EP3008811B1
公开(公告)日：2018-09-05
申请号：EP14739295.5
申请日：2014-06-11
Applicant: Raytheon Company
Inventor： YOSHIDA, Amy M. , KOSTRZEWA, Thomas J. , HUGHES, Eric T. , BREST, Michael L. , GRIFFIN, Eric J. , HERSHBERG, Jerry
CPC classification number: H02P7/29 , G01R31/06 , H01F7/1844
Abstract: A drive mechanism (16A, 16B) configured to drive a thermally isolated actuator (30) between two positions. The drive mechanism includes a rotary actuated motor (18) configured to rotatably drive a motor member (20), and a drive member (22) coupled to the motor member and having a drive arm (24, 42) configured to responsively move from a first position to a second position upon rotation of the motor member. An actuator (30) is responsive to movement of the drive arm (24) moved from the first position to the second position. A drive circuit (60) is configured to generate a pulse width modulated (PWM) drive signal (70) configured to controllably drive the motor, the PWM drive signal having a first duty cycle (Phase 1) configured to advance the drive arm from the first position, and having a second duty cycle (Phase 2) different than the first duty cycle as the drive arm approaches the second position. The drive signal may be removed (Phase3) before the drive arm (42) engages a hard stop (54). The drive mechanism may comprise at least one sensor (40) configured to determine a position of the drive arm (42) proximate the first position and proximate the second position. The actuator is thermally isolated from the drive arm (42) in both the first position and the second position.
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