Integrated thermal management system for vehicle

Patent metadata

Field	Value
Publication number	US-11207940-B2
Application number	US-202016859820-A
Country	US
Kind code	B2
Filing date	Apr 27, 2020
Priority date	Nov 19, 2019
Publication date	Dec 28, 2021
Grant date	Dec 28, 2021

Abstract

An integrated thermal management system may include a battery line connected to a high-voltage battery, having a first radiator, and having cooling water flowing by a first pump; an internal heating line connected to an internal air-conditioning heating core, having a cooling water heater therein, having cooling water flowing by a second pump, and having a first valve at a downstream side of the heating core; a first battery heating line formed to be diverged from the internal heating line at a downstream side of the internal air-conditioning heating core and connected to the battery line at an upstream side of the high-voltage battery; a second battery heating line diverged heating line formed to be diverged from the battery line at a downstream side of the high-voltage battery and connected to the internal heating line; and a controller operating the first pump and the second pump.

First claim

What is claimed is:

1. An integrated thermal management system for a vehicle, the system comprising:
a battery line connected to a battery to exchange heat, wherein a first radiator and a first pump flowing a cooling water are mounted in the battery line;
an internal heating line connected to an internal air-conditioning heating core, wherein a cooling water heater, a second pump flowing the cooling water, and a first valve are mounted in the internal heating line and wherein the first valve is mounted at a downstream side of the internal air-conditioning heating core;
a first battery heating line formed to be diverged from the internal heating line at a downstream side of the internal air-conditioning heating core and connected to the battery line at an upstream side of the battery;
a second battery heating line formed to be diverged from the battery line at a downstream side of the battery and connected to the internal heating line; and
a controller connected to the first pump and the second pump and configured of operating the first pump and the second pump so that the cooling water in the internal heating line joins in the battery line through the first battery heating line or the second battery heating line and is then introduced to the battery;
a refrigerant line connected to an internal air-conditioning cooling core, a compressor, and a water-cooling condenser connected to an air-cooling condenser, which are exposed to external air to exchange heat with the external air, or the internal heating line to exchange heat;
a bypass line formed to be diverged from the battery line, bypassing the first radiator, and joining the battery line at an upstream side of the first pump; and
a chiller to which the bypass line and the refrigerant line are connected to be configured to exchange heat.

2. The integrated thermal management system of claim 1 , wherein the controller is configured to control a rotation speed of the first pump and a rotation speed of the second pump on a basis of a predetermined temperature or a predetermined flow rate of the cooling water which is introduced into the battery.

3. The integrated thermal management system of claim 2 ,
wherein the controller is configured to decrease a temperature of the cooling water which is introduced into the battery by increasing the rotation speed of the first pump.

4. The integrated thermal management system of claim 2 ,
wherein the controller is configured to increase a temperature of the cooling water which is introduced into the battery by decreasing the rotation speed of the first pump or increasing the rotation speed of the second pump.

5. The integrated thermal management system of claim 1 , further including:
a first valve connected to the controller and mounted at a diverging point from the internal heating line to the first battery heating line or a joining point of the second battery heating line to the internal heating line, and configured of adjusting flow of the cooling water,
wherein the controller is configured to adjust a ratio of a flow rate of cooling water joining the battery line from the internal heating line and a flow rate of cooling water bypassing the battery and flowing to the internal heating line by controlling the first valve.

6. The integrated thermal management system of claim 5 ,
wherein the controller is configured to increase a temperature of the cooling water which is introduced into the battery by controlling the first valve so that the ratio of the flow rate of the cooling water joining the battery line from the internal heating line increases.

7. The integrated thermal management system of claim 5 ,
wherein the controller is configured to decreases a temperature of the cooling water which is introduced into the battery by controlling the first valve so that the ratio of the flow rate of the cooling water bypassing the battery and flowing to the internal heating line increases.

8. The integrated thermal management system of claim 1 , wherein the internal air-conditioning cooling core and the internal air-conditioning heating core are positioned to face each other to heat-exchange therebetween.

9. The integrated thermal management system of claim 1 , further including:
a second valve connected to the controller and mounted at a point diverging from the battery line to the bypass line or a point where the bypass line joins the battery line, and configured of adjusting the flow of the cooling water,
wherein the controller is configured to adjust a ratio of a flow rate of cooling water flowing to the first radiator and a flow rate of cooling water flowing to the bypass line by controlling the second valve.

10. The integrated thermal management system of claim 9 ,
wherein the controller is configured to decrease a temperature of the cooling water which is introduced into the battery by controlling the second valve so that the ratio of the flow rate of the cooling water flowing to the first radiator increases, or to decrease the temperature of the cooling water which is introduced into the battery by controlling the second valve so that the ratio of the flow rate of the cooling water flowing to the bypass line increases.

11. The integrated thermal management system of claim 1 , further including:
an electronic device line connected to an electronic device to exchange heat, a second radiator, and to a third pump flowing cooling water,
wherein the electronic device line is separated from the bypass line and connected to the refrigerant line to exchange heat at the chiller.

12. The integrated thermal management system of claim 11 , wherein the first radiator connected to the battery line is positioned to face the air-cooling condenser which is positioned to face the second radiator connected to the electronic device line.

13. The integrated thermal management system of claim 1 ,
wherein the chiller and the internal air-conditioning cooling core of the refrigerant line are connected in parallel to each other, a first expansion valve connected to the refrigerant line is mounted at an upstream side of the chiller, and a second expansion valve connected to the refrigerant line is mounted at an upstream side of the internal air-conditioning cooling core, and
wherein the controller connected to the first expansion valve, the second expansion valve and the compressor is configured to control an amount of cooling of the refrigerant line at the chiller by controlling opening or closing of the first expansion valve, opening or closing of the second expansion valve, or operation of the compressor connected to the refrigerant line.

14. The integrated thermal management system of claim 11 ,
wherein the chiller and the internal air-conditioning cooling core of the refrigerant line are connected in parallel to each other, a first expansion valve connected to the refrigerant line is mounted at an upstream side of the chiller, and a second expansion valve connected to the refrigerant line is mounted at an upstream side of the internal air-conditioning cooling core, and
wherein the controller connected to the first expansion valve, the second expansion valve and the compressor is configured to control an amount of cooling of the refrigerant line at the chiller by controlling opening or closing of the first expansion valve, opening or closing of the second expansion valve, or operation of the compressor connected to the refrigerant line.

Assignees

• Hyundai Motor Co Ltd
• Kia Motors Corp

Inventors

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

Classifications

• B60H1/143

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

• B60L58/27 Primary

  by heating · 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

• B60L58/26

  by cooling · CPC title

• B60H1/00278 Primary

  for the battery · CPC title