The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jan. 30, 2018
Filed:
Jul. 09, 2013
Robert Bosch Gmbh, Stuttgart, DE;
Bernhard Ledermann, Weil der Stadt, DE;
Claudius Bevot, Stuttgart, DE;
Thomas Steinert, Weinstadt, DE;
ROBERT BOSCH GMBH, Stuttgart, DE;
Abstract
A method for checking fault detection of a control device of an internal combustion engine for malfunction of a connected broadband lambda probe, including checking with a fault simulator between the lambda probe and the control device; to simulate faults of the broadband lambda probe, the fault simulator modifies electrical signals between the broadband lambda probe and the control device. A Nernst voltage of the lambda probe and a pump current of the control device are delivered to the fault simulator; the fault simulator delivers a pump current to the lambda probe and a Nernst voltage to the control device; to simulate faults of the lambda probe, the fault simulator modifies the Nernst voltage to the control device as to the Nernst voltage outputted from the lambda probe. Also described is a related fault simulator. The method and fault simulator monitor the fault detection of control devices for lambda probes.