High frequency voltage injection-based cable swap detection
US10723294B2 · kind B2 · utility
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2References
5Claims
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Key dates
| Filing date | Jul 12, 2018 |
| Grant date | Jul 28, 2020 |
| Priority date | — |
| Expiry date | Jul 12, 2038 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02T90/14
- WIPO fieldTransport
- WIPO sectorMechanical engineering
Abstract
A vehicle includes a controller programmed to, responsive to injecting a high frequency voltage signal to an electric machine, determine an estimated negative sequence current phase associated with an electric machine current, and responsive to a rotor of the electric machine being at a predetermined rotor position, inject a pulse torque command to the electric machine and observe a speed change of the electric machine to determine a cable sequence.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.