Thermal management system for vehicle

Patent metadata

Field	Value
Publication number	US-11110772-B2
Application number	US-201916682213-A
Country	US
Kind code	B2
Filing date	Nov 13, 2019
Priority date	Jun 4, 2019
Publication date	Sep 7, 2021
Grant date	Sep 7, 2021

Abstract

A thermal management system for a vehicle is provided, which includes a battery line connected to a high-voltage battery core, provided with a first radiator, and configured to make cooling water flow therein by a first pump; an indoor heating line connected to a heating core for indoor air conditioning, and provided with a water heating heater therein and a second pump to make cooling water flow therein; a first battery heating line and a second battery heating line branched from a first valve provided at a downstream point of the heating core of the indoor heating line and connected to upstream and downstream points of the high-voltage battery core of the battery line, respectively; and a refrigerant line provided with an expansion valve, a cooling core for indoor air conditioning, a compressor, and an air-cooled condenser.

First claim

What is claimed is:

1. A thermal management system for a vehicle, the thermal management system comprising:
a battery line connected to a battery core, mounted with a first radiator, and configured to make cooling water flow therein by a first pump;
an indoor heating line connected to a heating core for indoor air conditioning, mounted with a water heating heater therein, and mounted with a second pump to make cooling water flow therein;
a first battery heating line and a second battery heating line branched from a first valve mounted at a downstream point of the heating core of the indoor heating line and connected to an upstream point and a downstream point of the battery core of the battery line, respectively; and
a refrigerant line mounted with a first expansion valve, a cooling core for indoor air conditioning, a compressor, and an air-cooled condenser.

2. The thermal management system according to claim 1 , wherein a downstream point of the compressor of the refrigerant line and an upstream point of the water heating heater of the indoor heating line are connected to each other through a water-cooled condenser, and the refrigerant line and the indoor heating line are connected to each other to exchange heat with each other through the water-cooled condenser.

3. The thermal management system according to claim 2 , wherein a second expansion valve is mounted on the refrigerant line between the air-cooled condenser and the water-cooled condenser.

4. The thermal management system according to claim 2 , further including an electronic component line connected to an electronic component core, mounted with a second radiator, and configured to make the cooling water flow therein by a third pump.

5. The thermal management system according to claim 4 , further including:
a refrigerant bypass line having a first end portion connected to an upstream point of the cooling core for the indoor air conditioning of the refrigerant line, and a second end portion connected between a downstream point of the cooling core for the indoor air conditioning and an upstream point of the compressor of the refrigerant line; and
a first cooling water bypass line having a first end portion connected to a downstream point of the electronic component core of the electronic component line, and a second end portion connected to an upstream point of the electronic component core of the electronic component line through a second valve,
wherein the refrigerant bypass line and the first cooling water bypass line are connected to each other through a chiller, and the refrigerant bypass line and the first cooling water bypass line are connected to each other to exchange heat with each other through the chiller.

6. The thermal management system according to claim 5 , wherein a third expansion valve is mounted on the refrigerant bypass line.

7. The thermal management system according to claim 5 ,
wherein a controller is configured to control the water heating heater, the first valve, and the second pump, and
wherein in a first mode to increase a temperature of the battery core,
the controller is configured to control the water heating heater, the first valve, and the second pump to introduce the cooling water with an increased temperature passing through the water heating heater to the battery core through the first battery heating line, and then to introduce the cooling water again to the indoor heating line through the second battery heating line.

8. The thermal management system according to claim 5 ,
wherein a controller is connected to the compressor, the water heating heater, the first valve, the second valve, the second pump, and the third pump, and
wherein in a second mode to recover a waste heat of the electronic component core and to increase a temperature of the battery core,
a controller is configured to control the compressor, the water heating heater, the first valve, the second valve, the second pump, and the third pump to introduce the cooling water passing through the electronic component core to the chiller through the first cooling water bypass line and then to introduce the cooling water again to the electronic component line,
to introduce a refrigerant passing through the air-cooled condenser to the water-cooled condenser through the chiller and then to introduce the refrigerant again to the air-cooled condenser, and
to introduce the cooling water with an increased temperature passing through the water heating heater after passing through the water-cooled condenser to the battery core through the first battery heating line, and then to introduce the cooling water again to the indoor heating line through the second battery heating line.

9. The thermal management system according to claim 5 , further including a second cooling water bypass line having a first end portion connected to the upstream point of the battery core of the battery line, and a second end portion connected to the downstream point of the battery core of the battery line, wherein the second cooling water bypass line is connected to exchange heat with the first cooling water bypass line or the refrigerant bypass line through connection to the chiller.

10. The thermal management system according to claim 9 ,
wherein a controller is connected to the compressor, the third valve, and the first pump, and
wherein in a third mode to cool the battery core,
the controller is configured to control the compressor, the third valve, and the first pump to introduce a refrigerant passing through the air-cooled condenser to the water-cooled condenser through the chiller and then to introduce the refrigerant again to the air-cooled condenser, and
to introduce the cooling water passing through the battery core to the chiller through the second cooling water bypass line and then to introduce the cooling water again to the battery core.

11. The thermal management system according to claim 9 ,
wherein a controller is configured to control the compressor, the first valve, the second valve, the third valve, the first pump, and the third pump, and
wherein in a fourth mode to cool the electronic component core and the battery core,
the controller is configured to control the compressor, the first valve, the second valve, the third valve, the first pump, and the third pump to introduce a refrigerant passing through the air-cooled condenser to the water-cooled condenser through the chiller and then to introduce the refrigerant again to the air-cooled condenser,
to introduce the cooling water passing through the battery core to the chiller through the second cooling water bypass line and then to introduce the cooling water again to the battery core, and
to introduce the cooling water passing through the electronic component core again to the electronic component core after passing through the second radiator.

12. The thermal management system according to claim 9 ,
wherein a controller is configured to control the first valve, the second valve, the third valve, the first pump, and the third pump, and
wherein in a fifth mode to cool the electronic component core and the battery core using an external air of the vehicle,
the controller is configured to control the first valve, the second valve, the third valve, the first pump, and the third pump to circulate the cooling water in the battery line and the electronic component line.

13. The thermal management system according to claim 1 , further including a reservoir tank connected to the battery line and the electronic component line.

14. The thermal management system according to claim 1 , wherein the first battery heating line is branch

Assignees

• Hyundai Motor Co Ltd
• Kia Motors Corp
• Kia Corp

Inventors

• Oh Man Ju
• Chung So La
• Kim Jae Woong
• Lee Sang Shin

Classifications

• B60H1/143

  the heat being derived from cooling an electric component, e.g. electric motors, electric circuits, fuel cells or batteries · CPC title

• B60H2001/00928

  comprising a secondary circuit · CPC title

• B60H1/00885

  Controlling the flow of heating or cooling liquid, e.g. valves or pumps (B60H1/00899 takes precedence; constructions of valves B60H1/00485) · CPC title

• B60H1/00278 Primary

  for the battery · CPC title

• B60H1/00428

  electric · CPC title