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:
Jun. 08, 2004
Filed:
Jan. 10, 2003
Thomas Martin Urbank, Lockport, NY (US);
Aaron P. Running, Rochester Hills, MI (US);
Karma Vir Sangwan, East Amherst, NY (US);
Delphi Technologies, Inc., Troy, MI (US);
Abstract
A manually controlled motor vehicle HVAC system is activated for automatically pre-heating or pre-cooling the cabin following remote starting of the vehicle engine. When the engine has been remotely started, an HVAC controller estimates initial outside air and cabin air temperatures, and determines if pre-heating or pre-cooling is appropriate based on the estimated initial temperatures, the engine coolant temperature and a measure of the engine soak time. When pre-heating or pre-cooling is deemed to be appropriate, the HVAC parameters normally set by a driver interface panel are selectively overridden based on the estimated initial outside air and cabin air temperatures. In a particularly advantageous embodiment, the initial outside air temperature is estimated based on an inlet air temperature sensor of the engine or on a refrigerant pressure sensor of the HVAC system prior to activation of the refrigerant compressor.