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:
Apr. 10, 2012
Filed:
May. 22, 2009
Jeong-hoon Lee, Daejeon, KR;
Sae-won OH, Daejeon, KR;
Tae-eun Kim, Daejeon, KR;
Young-min Kim, Daejeon, KR;
Jae-yup Kim, Daejeon, KR;
Jeong-Hoon Lee, Daejeon, KR;
Sae-Won Oh, Daejeon, KR;
Tae-Eun Kim, Daejeon, KR;
Young-Min Kim, Daejeon, KR;
Jae-Yup Kim, Daejeon, KR;
Halla Climate Control Corp., Daejeon, KR;
Abstract
The present invention relates to a method for controlling the operation of a compressor for preventing noise that occurs in case of the shortage of refrigerant flow caused by less discharge capacity of the compressor of an air conditioner for a vehicle. The compressor includes a cylinder bore for compressing a refrigerant, a piston inserted into the cylinder bore, a swash plate having a controllable slope with respect to a drive shaft, and a control valve for controlling the slope of the swash plate. The discharge capacity of the compressor is increased if it is determined that vehicle speed and accelerating rate satisfy predetermined conditions. If a low flow rate state of refrigerant of the compressor is predicted, the ECV duty is increased to prevent the compressor from entering the low flow rate state, thereby improving the workability of the compressor and solving the noise problem.