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:
Dec. 04, 1990
Filed:
Jun. 06, 1989
Hidekazu Oshizawa, Higashi-matsuyama, JP;
Diesel Kiki Co., Ltd., Tokyo, JP;
Abstract
An air-mix door control apparatus for automobile air-conditioners which is so constructed as to control the position of the air-mix door according to a deviation of the actual discharge air temperature from a target discharge air temperature calculated based on a set temperature, a vehicle compartment temperature, etc. A target position for the air-mix door is calculated according to a difference between the target discharge air temperature and the actual discharge air temperature at an interval which is shorter than the interval of calculation of the difference between the target air temperature and the actual discharge air temperature. With the control apparatus thus constructed, a stable and reliable control of operation of the air-mix can be achieved.