Method for diagnosing a wideband lambda sensor
US12360010B2 · kind B2 · utility
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16Claims
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Key dates
| Filing date | Oct 4, 2021 |
| Grant date | Jul 15, 2025 |
| Priority date | — |
| Expiry date | May 22, 2042 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01N27/4065
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A control unit and a method for diagnosing lines between a wideband lambda sensor and the control. By means of specific circuitry and evaluation, it is determined, for each individual line, whether or not there is an interruption or failure of the line in question. A method for more accurately measuring the value of a calibration resistor of the wideband lambda sensor is also described.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.