Title:
【発明の名称】空気調和装置
Document Type and Number:
Japanese Patent JP2607637
Kind Code:
B2
Abstract:
PURPOSE:To keep the rotating speed of a motor stable against the slight fluctuation of a room temperature without sacrificing the delicate control of the room temperature by a method wherein a plurality of measured values of the room temperature is stored and the average value thereof is used as the value of the room temperature. CONSTITUTION:The values of 16 data of room temperature, stored into a buffer by replacing the oldest data with the newest data, are average values of 16 measured values read with intervals of 2 second and, therefore, affection due to the slight fluctuations of the room temperature becomes slight. The value T of room temperature, defined this time, is compared with the value TOLD, defined at previous time, in a room temperature defining unit 6 by a histeresis characteristic adding unit 7 and when the value T is larger, the value of T-1 is used as the value TF of corrected room temperature but when the value T ia smaller, the value T is used as the value TF as it is. When the value of this time is equal to the value of previous time, the value TF is not changed. Finally, the value T of room temperature, defined at this time, is preserved as the value TOLD of room temperature, defined at previous time. The corrected value of room temperature is used as a room temperature data which provides the rotating speed of a motor 15 with a direct affection.
Inventors:
Kyoji Yamane
Kaneko Tomotsu
Shinichi Iizuka
Mikio Ueyama
Kaneko Tomotsu
Shinichi Iizuka
Mikio Ueyama
Application Number:
JP22463788A
Publication Date:
May 07, 1997
Filing Date:
September 09, 1988
Export Citation:
Assignee:
株式会社日立製作所
International Classes:
F24F11/02; (IPC1-7): F24F11/02
Domestic Patent References:
| JPS618339A | ||||
| JPS5578308A |
Attorney, Agent or Firm:
Katsuo Ogawa (1 person outside)