公开(公告)号：US11686757B2

公开(公告)日：2023-06-27

申请号：US17475227

申请日：2021-09-14

申请人： Hamilton Sundstrand Corporation

发明人： Kamaraj Thangavelu ,  Matthew Ryan Hasseman ,  Jeffrey D. Myroth ,  Ryan Thomas Carter

IPC分类号： G01R31/00 ,  G01R31/28 ,  G01R31/50 ,  G01R31/30 ,  G06F11/30 ,  G06F11/22

CPC分类号： G01R31/008 ,  G01R31/2815 ,  G01R31/2834 ,  G01R31/3004 ,  G01R31/50 ,  G06F11/2284 ,  G06F11/3062 ,  G01R31/2827

摘要： In accordance with at least one aspect of this disclosure, a controller for an aircraft electrical system includes, a software safe module. In embodiments, the software safe module can be configured to determine whether there was a sudden power failure upon controller initialization, and cause operation of the controller in a software safe mode if there was a sudden power failure such that manual intervention is required to leave the software safe mode to prevent repetitive power failure of the controller.

公开(公告)号：US20230083816A1

公开(公告)日：2023-03-16

申请号：US17475227

申请日：2021-09-14

申请人： Hamilton Sundstrand Corporation

发明人： Kamaraj Thangavelu ,  Matthew Ryan Hasseman ,  Jeffrey D. Myroth ,  Ryan Thomas Carter

IPC分类号： G01R31/00 ,  G01R31/28 ,  G01R31/50 ,  G01R31/30 ,  G06F11/30 ,  G06F11/22

摘要： In accordance with at least one aspect of this disclosure, a controller for an aircraft electrical system includes, a software safe module. In embodiments, the software safe module can be configured to determine whether there was a sudden power failure upon controller initialization, and cause operation of the controller in a software safe mode if there was a sudden power failure such that manual intervention is required to leave the software safe mode to prevent repetitive power failure of the controller.

公开(公告)号：US11705719B1

公开(公告)日：2023-07-18

申请号：US17741397

申请日：2022-05-10

申请人： Hamilton Sundstrand Corporation

发明人： Abhay V. Munshi ,  Mark J. Nauman ,  Paul J. Peterson ,  Kamaraj Thangavelu

IPC分类号： H02H7/06 ,  H02P9/10

CPC分类号： H02H7/065 ,  H02P9/107

摘要： In accordance with at least one aspect of this disclosure, a system includes a generator control relay configured to electrically connect a generator and an exciter switch drive to drive an exciter switch. A first processor is operatively connected to control a state of the generator control relay to control the electrical connection between a generator and the exciter switch drive. The system includes an exciter drive configured to generate excitation current for field windings of a generator system based on a state of the exciter switch. A second processor is operatively connected to control the exciter drive and to communicate with the first processor during a fault event to place the generator control relay in an open state, disconnecting the generator from the exciter switch drive to prevent generation of excitation current. In certain embodiments, the first processor can include a microcontroller and the second processor can include a voltage regulation processor.