Patent · US Active

Test bench for simulating the electrical response of a wideband lambda sensor

US10591453B2 · kind B2 · utility

2Cited by

4References

14Claims

0Family size

Assignee

dSPACE digital signal processing and control engineering GmbH · DE

Inventors

Dirk Hasse · Paderborn, DE
Michael Wartig · Rheda-Wiedenbrück, DE

Key dates

Filing date	Dec 14, 2017
Grant date	Mar 17, 2020
Priority date	—
Expiry date	Nov 12, 2038

Classification

Technology area (CPC G)Physics
CPC primaryG01M15/104
WIPO fieldMeasurement
WIPO sectorInstruments

Abstract

A test bench for a control system for controlling a wideband lambda sensor, which is configured to calculate an actual value, which represents an oxygen concentration in a measuring gap of a wideband lambda sensor or an indicator value from which the oxygen concentration can be derived, with consideration of a current generated by a pump voltage in an electrical circuit. In order to simulate the electrical response of a pump cell of the wideband lambda sensor, a first diode and a second diode are connected in parallel in the electrical circuit such that a current flows through the first diode at a first polarity of the pump voltage and a current flows through the second diode at a second polarity of the pump voltage.

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