Apparatus and method for diagnosing fuel cell and vehicle system
US10777830B2 · kind B2 · utility
Assignees
Inventors
Key dates
| Filing date | Nov 16, 2017 |
| Grant date | Sep 15, 2020 |
| Priority date | — |
| Expiry date | Jul 16, 2038 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02T90/40
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
An apparatus for diagnosing a fuel cell and a vehicle system includes a measuring device that measures a stack voltage and a stack current from a fuel cell stack, and at least one processor that extracts a plurality of reference current points and a plurality of reference voltage points corresponding to the reference current points by analyzing the measured stack voltage and the measured stack current, calculates an abnormality degree of the fuel cell stack based on a reference signal waveform formed by using voltage differences between the reference voltage points, and determines an abnormal state of the fuel cell stack based on the calculated abnormality degree of the fuel cell stack.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.