CONTROL DEVICE FOR ELECTRIC LATHE
Patent Information
- Authority / Receiving Office
- DE · DE
- Patent Type
- Patents
- Current Assignee / Owner
- AISIN CORP
- Filing Date
- 2021-03-26
- Publication Date
- 2026-05-27
AI Technical Summary
Existing control devices struggle to accurately identify and distinguish between open-circuit and short-circuit failures in switching elements of inverters connected to open-end windings of rotating electrical machines, particularly when failures occur in one of two inverters, leading to difficulty in isolating the failed element and maintaining drive functionality.
The rotating electrical machine control device employs waveform analysis of three-phase currents to determine the polarity biases of integrated current values, allowing identification of open-circuit and short-circuit failures in specific arms of the inverters, and adjusts control strategies to continue drive operations despite failures.
Enables precise identification of failure locations in switching elements, ensuring continued operation of the rotating electrical machine by adapting control strategies to mitigate the effects of failures, thereby maintaining system stability and efficiency.