Method for ISO 26262-compliant evaluation of a pressure-sensor signal
US12270720B2 · kind B2 · utility
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14Claims
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Key dates
| Filing date | Aug 10, 2021 |
| Grant date | Apr 8, 2025 |
| Priority date | — |
| Expiry date | Jan 30, 2042 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH03M1/1225
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A device and a method evaluate signals from one or more Wheatstone bridges. The requirements of ISO 26262 are taken into account by mixing a test signal with the measurement signal before amplification and before analog-to-digital conversion. After amplification and analog-to-digital conversion, the measurement signal and the test signal are unmixed again. If the test signal does not meet the expectation, the amplifier and/or the analog-to-digital converter is determined to be faulty.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.