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:
Apr. 21, 2009
Filed:
Sep. 09, 2004
Markus Niemann, Beckingen, DE;
Thomas Sperlich, Reutlingen, DE;
Markus Niemann, Beckingen, DE;
Thomas Sperlich, Reutlingen, DE;
Robert Bosch GmbH, Stuttgart, DE;
Abstract
A device for controlling a ventilation system in the interior of a motor vehicle includes a gas concentration determining arrangement to determine the exterior concentration of a gas in the exterior air surrounding the vehicle and to determine the interior concentration of the same gas in the air contained in the interior of the vehicle, and an air flow control arrangement, via which the proportion of circulating air and the proportion of fresh air from the surroundings of the vehicle in the air delivered to the interior by the ventilation system are controlled as a function of the determined interior concentration or the determined exterior concentration. The gas concentration determining arrangement is represented by a single gas sensor.