Patent · US Active

Method for precisely detecting a signal for example of a sensor

US12191874B2 · kind B2 · utility

0Cited by

3References

7Claims

0Family size

Assignee

Robert Bosch GmbH · DE

Inventors

Fabian Baumann · Augsburg, DE
Bernhard Ledermann · Weil der Stadt, DE
Claudius Bevot · Stuttgart, DE
Florian Mezger · Stuttgart, DE

Key dates

Filing date	Apr 7, 2020
Grant date	Jan 7, 2025
Priority date	—
Expiry date	Oct 16, 2041

Classification

Technology area (CPC H)Electricity
CPC primaryH03M1/122
WIPO fieldMeasurement
WIPO sectorInstruments

Abstract

A method for precise acquisition of a signal of a sensor, by an evaluation and control unit which has a multiplexer at whose inputs there is at least one reference voltage whose voltage value is known, a ground potential of the reference voltage, a measurement signal of the exhaust gas sensor, and a ground potential of the measurement signal. A computer is connected downstream from the multiplexer via a transmission path and via an ADC that converts a voltage between its two inputs into a digital value. The method provides that a plurality of individual measurements are carried out in which switching states of the multiplexer are modified, and digital values are subsequently acquired at the output of the ADC. The computer calculates a measurement value, corrected with regard to offset and gain, from these digital values.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.