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:
May. 16, 1989
Filed:
Apr. 20, 1988
Tsuneo Kagohata, Ibaraki, JP;
Hitachi, Ltd., Tokyo, JP;
Abstract
In a blowout temperature control system of an air conditioner for use in vehicles, a temperature detected by a ventilation duct sensor is weighted by a first weighting ratio which varies depending on a wind amount of a ventilation duct. A temperature detected by a defroster duct sensor is weighted by a second weighting ratio which is determined by the first weighting ratio. The weighted mean is calculated from the weighted detection temperatures of the ventilation duct and defroster duct, so that a substantial blowout temperature is determined. A deviation temperature between the substantial blowout temperature and an object blowout temperature is calculated and the blowout control is performed such that the deviation temperature becomes zero.