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:
Sep. 25, 2001
Filed:
Apr. 10, 2000
Wayne Oliver Forrest, Gasport, NY (US);
Elliott D. Keen, Lockport, NY (US);
Delphi Technologies, Inc., Troy, MI (US);
Abstract
An improved method for controlling inlet air mixing in a vehicle air conditioning system having an air inlet mixing device, wherein the mixing device is controlled under predefined operating conditions to improve vehicle fuel economy and achieve performance improvements associated with cabin air recirculation while maintaining a predefined level of outside air flow in the inlet air mixture of the system. The overall air flow is determined by the speed of an inlet air blower motor, and the control is enabled under high thermal loading to adjust the inlet air mixing device as a function of the blower motor speed so that the predetermined level of outside air flow is preserved regardless of the blower motor speed.