Patent ID: 11927102
Assignee: HAMILTON SUNDSTRAND CORPORATION
Field: Engines, pumps, turbines (Mechanical engineering)
Classification: CPC F  H | IPC F

Claim 0:
1. An aircraft electric power generation and start system (EPGSS) comprising:
a main machine configured to selectively operate in a start mode or a generator mode, the main machine including a main stator and a main rotor configured to rotate along with a shaft;
a starter permanent magnet generator (PMG) electrically connected to a first rectifier, the starter PMG including a first PMG stator and a first PMG rotor configured to rotate along with the shaft;
a generator permanent magnet generator (PMG) electrically connected to a second rectifier, the generator PMG including a second PMG stator and a second PMG rotor configured to rotate along with the shaft; and
a system configured to determine one or both of a PMG voltage and a PMG current corresponding to the starter PMG during the start mode, and to determine a rotational position of the main rotor based on one or both of the PMG voltage and the PMG current.