US 11,987,099 B2
Control method of air conditioning system for compressor protection
Seung Hyun Won, Gunpo-si (KR); Man Hee Park, Suwon-si (KR); Chul Min Kim, Seoul (KR); Dong Seok Oh, Hwaseong-si (KR); and Hyo Bin Kim, Seoul (KR)
Assigned to HYUNDAI MOTOR COMPANY, Seoul (KR); and KIA CORPORATION, Seoul (KR)
Filed by HYUNDAI MOTOR COMPANY, Seoul (KR); and KIA CORPORATION, Seoul (KR)
Filed on May 28, 2021, as Appl. No. 17/333,465.
Claims priority of application No. 10-2020-0147251 (KR), filed on Nov. 6, 2020.
Prior Publication US 2022/0144045 A1, May 12, 2022
Int. Cl. B60H 1/32 (2006.01); B60H 1/00 (2006.01)
CPC B60H 1/3214 (2013.01) [B60H 1/00978 (2013.01); B60H 1/3222 (2013.01); B60H 2001/3266 (2013.01); B60H 2001/3275 (2013.01)] 15 Claims
OG exemplary drawing
 
1. A control method of an air conditioning system for compressor protection, the control method comprising:
determining, by a controller, whether a compressor operating condition is satisfied from a refrigerant state of an air conditioner, when an air conditioner turn-on request is present;
determining, by the controller, whether the vehicle is in a state of being unattended for a long period of time using information collected from a vehicle, when the compressor operating condition is determined as being satisfied;
performing, by the controller, a pre-run control for operating the compressor in a predetermined minimum load condition, when the vehicle is determined as being in a state of being unattended for a long period of time; and
interrupting, by the controller, the pre-run control with respect to the compressor, when a pre-run operating time for which the compressor is operated in a minimum load condition reaches a predetermined pre-run holding time
wherein the pre-run holding time is determined according to a compressor operating state by the controller.