公开(公告)号：US20230173873A1

公开(公告)日：2023-06-08

申请号：US17907788

申请日：2021-07-30

Applicant: Hanon Systems

Inventor： Dae Yeop JEONG ,  Chul Soon KIM ,  Sang Jun YOO ,  Hong Rae JUNG ,  Tak Jun KIM ,  Goong Jun NAM ,  Hee Jin RYU ,  Jae Woo LEE

IPC: B60H1/00 ,  B60H1/32

CPC classification number: B60H1/00278 ,  B60H1/00807 ,  B60H1/00885 ,  B60H1/3211 ,  B60H1/323 ,  B60H2001/3267

Abstract: The present invention relates to a vehicular heat management system capable of inducing an increase in refrigerant superheat degree without unconditionally turning off a compressor when the refrigerant superheat degree on the discharge side of a chiller is less than or equal to a lower limit value.
The vehicular heat management system includes: a compressor; a condensing heat exchanger; an expansion valve; an evaporation heat exchanger; and a control part configured to, when a refrigerant superheat degree on a discharge side of the evaporation heat exchanger is lowered to a predetermined lower limit value or less, control, step by step, at least two devices directly involved in the increase and decrease of the refrigerant superheat degree to increase the refrigerant superheat degree until the refrigerant superheat degree exceeds the lower limit value.

公开(公告)号：US20180117989A1

公开(公告)日：2018-05-03

申请号：US15796901

申请日：2017-10-30

Applicant: HANON SYSTEMS

Inventor： Se Won MIN ,  Tae Eun KIM ,  Chang Hyun BAEK ,  Sang Jun YOO ,  Hong Rae JUNG ,  Chul Soon KIM

IPC: B60H1/00

CPC classification number: B60H1/00835 ,  B60H1/00735 ,  B60H1/00807 ,  B60H1/00878 ,  B60H1/00892 ,  B60H1/00964 ,  B60H1/04 ,  B60H2001/00733

Abstract: The present invention relates to an air conditioner for a vehicle and a control method thereof, which can calculate the range of discharge temperature to the interior of the vehicle, set the upper limit of the discharge temperature, and control the degree of opening of a temp door such that the discharge temperature to the interior of the vehicle gets lower than the upper limit, thereby preventing air of discharge temperature above the upper limit from being discharged to the interior of the vehicle and preventing displeasure or personal injury that may be caused when air of high temperature is discharged.

公开(公告)号：US20240278622A1

公开(公告)日：2024-08-22

申请号：US18569954

申请日：2022-09-23

Applicant: Hanon Systems

Inventor： Hak Kyu KIM ,  In Hyeok KIM ,  Sang Jun YOO ,  Hong Rae JUNG

IPC: B60H1/32

CPC classification number: B60H1/3216 ,  B60H1/3222

Abstract: The present invention relates to a vehicular air conditioning system and provides a vehicular air conditioning system capable of preventing overheating of an inverter that controls the rotation speed of an electric compressor without cutting off the inverter, and consequently preventing the stoppage of an air conditioner due to the cut-off of the inverter and the resultant stoppage of cooling of a passenger room. The vehicular air conditioning system includes an electric compressor, an inverter configured to control a rotation speed of the electric compressor, and a control part configured to execute control so that a refrigerant flow rate on an inlet side of the electric compressor increases when a temperature of the inverter is equal to or higher than a preset overheating warning temperature.

公开(公告)号：US20190001788A1

公开(公告)日：2019-01-03

申请号：US16020209

申请日：2018-06-27

Applicant: HANON SYSTEMS

Inventor： Se Won MIN ,  Sang Jun YOO ,  Young Min KIM ,  Chul Soon KIM ,  Hong Rae JUNG ,  Chang Hyun BAEK ,  Dae Yeop JEONG

IPC: B60H1/22

Abstract: An air conditioner for a vehicle includes an air conditioning case having a first air passageway and a second air passageway partitioned by a separator therein; a PTC heater disposed in each of the first air passageway and the second air passageway to generate heat by electric energy; and a control unit for controlling operation of the PTC heater. The control unit individually controls discharge temperature of the first air passageway and discharge temperature of the second air passageway of the PTC heater, and if target discharge temperature of the first air passageway and target discharge temperature of the second air passageway are different from each other, the control unit calculates and outputs a compensation value for the PTC heater output of at least one of the first air passageway and the second air passageway. The PTC heater therefore has a reduced output when controlling for dual temperatures.