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:
Oct. 13, 2009
Filed:
Dec. 03, 2003
Roland Caesar, Stuttgart, DE;
Jan Gaertner, Stuttgart, DE;
Juergen Wertenbach, Fellbach, DE;
Daimler AG, Stuttgart, DE;
Abstract
A method for air conditioning a motor vehicle, in which, in a heating mode, the passenger compartment of the motor vehicle is heated via a passenger compartment heat exchanger () through heat pump operation of a refrigerating circuit (). To prevent fogging of the windows of the motor vehicle from the outset, the temperature and humidity in the passenger compartment are recorded by measurement technology, and when the temperature is in a predefined range and the atmospheric humidity reaches a defined threshold, the mass flow of refrigerant in the circuit is throttled upstream of the passenger compartment heat exchanger (), in such a manner that the moisture contained in the air stream passing the passenger compartment heat exchanger () is at least substantially condensed at the passenger compartment heat exchanger (), and the moisture which has already condensed at the heat exchanger () remains at the heat exchanger (). The passenger compartment is heated by a heat source which is outside the circuit () until the temperature in the passenger compartment exceeds an upper limit temperature of the predefined range.