公开(公告)号：US20180164266A1

公开(公告)日：2018-06-14

申请号：US15841848

申请日：2017-12-14

Applicant: dSPACE digital signal processing and control engineering GmbH

Inventor： Dirk HASSE ,  Michael WARTIG

IPC: G01N33/00 ,  G01N27/41 ,  G01N27/416

CPC classification number: G01N33/0006 ,  F02D41/1456 ,  F02D41/1495 ,  F02D2041/1437 ,  G01M15/104 ,  G01N27/41 ,  G01N27/4163

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.