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.

Date of Patent:
Nov. 16, 1982

Filed:

Sep. 26, 1980
Applicant:
Inventors:

Yoji Ito, Kariya, JP;

Yozo Inoue, Chiryu, JP;

Kiyoshi Hara, Kariya, JP;

Assignee:

Nippondenso Co., Ltd., Kariya, JP;

Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
F25B / ; B60H / ;
U.S. Cl.
CPC ...
62229 ; 623234 ; 165 43 ;
Abstract

In control of the cooling ability of an automobile air conditioner, an electric control method comprises the steps of detecting a deviation between the actual in-car temperature and a desired value upon each lapse of a predetermined period of time, comparing the detected deviation with a predetermined value and maintaining the cooling ability of the air conditioner when the detected deviation is larger than the predetermined value, comparing the detected deviation with the preceding detected deviation when the detected deviation is smaller than or equal to the predetermined value and maintaining the cooling ability of the air conditioner when the detected deviation is larger than or equal to the preceding detected deviation, decreasing the cooling ability of the air conditioner when the detected deviation is smaller than the preceding detected deviation, and increasing the cooling ability of the air conditioner when the detected deviation is larger than each of the predetermined value and the preceding detected deviation, thereby to reduce unnecessary engine power torque losses caused by operation of the air conditioner.


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