HYBRID INTERCOOLER SYSTEM USING MULTIPLE COOLING MEDIA AND METHOD OF CONTROLLING THE HYBRID INTERCOOLER SYSTEM USING MULTIPLE COOLING MEDIA

• US 20170082014A1
• Filed: 04/22/2016
• Published: 03/23/2017
• Est. Priority Date: 09/21/2015
• Status: Active Grant

• Current Assignee: Hyundai Motor Company (Hyundai Motor Group)
• Original Assignee: Hyundai Motor Company (Hyundai Motor Group)
• Inventors: PARK, Dang-Hee
• Granted Patent: US 9,988,972 B2
• Time in Patent Office: Days
• CPC Class Codes: F02B 29/0412 Multiple heat exchangers arranged in parallel or in series
• CPC Class Codes: F02B 29/0425 Air cooled heat exchangers
• CPC Class Codes: F02B 29/0443 Layout of the coolant or refrigerant circuit
• CPC Class Codes: F02B 29/0493 Controlling the air charge temperature
• CPC Class Codes: Y02T 10/12 Improving ICE efficiencies

Abstract

A hybrid intercooler system using multiple cooling media includes a first cooler for cooling air supercharged in a turbocharger using transmission oil, a second cooler for cooling the supercharged air passing through the first cooler using cooling water, and a third cooler for cooling the supercharged air passing through the second cooler using outdoor air.

Claims

1. A hybrid intercooler system using multiple cooling media, comprising:

a first cooler for cooling air supercharged in a turbocharger using transmission oil;

a second cooler for cooling the supercharged air passing through the first cooler using cooling water; and

a third cooler for cooling the supercharged air passing through the second cooler using outdoor air.

2. The hybrid intercooler system of claim 1, further comprising:

a transmission oil cooler for cooling the transmission oil supplied into the first cooler.

3. The hybrid intercooler system of claim 2, further comprising:

a first transmission oil channel for connecting the transmission oil cooler to a transmission including an oil pump, and further including a first transmission oil inflow channel communicating between an outlet of the transmission oil cooler and an inlet of the transmission, and further including a first transmission oil outflow channel communicating between an outlet of the transmission and an inlet of the transmission oil cooler.

4. The hybrid intercooler system of claim 3, further comprising:

a second transmission oil channel branched from the first transmission oil channel to connect the transmission oil cooler to the first cooler, and further including a second transmission oil inflow channel communicating between the first transmission oil inflow channel and an inlet of the first cooler; and

a second transmission oil outflow channel communicating between an outlet of the first cooler and the first transmission oil outflow channel

5. The hybrid intercooler system of claim 4, further comprising:

an intercooler valve for opening and closing a channel through which the transmission oil is introduced from the transmission oil cooler to the first cooler in the second transmission oil channel

6. The hybrid intercooler system of claim 5, further comprising:

a cooling radiator for cooling the cooling water supplied into an engine and the second cooler.

7. The hybrid intercooler system of claim 6, further comprising:

a cooling water channel including a cooling water inflow channel communicating between an outlet of the cooling radiator and an inlet of the second cooler, and a cooling water outflow channel communicating between an outlet of the second cooler and an inlet of the cooling radiator.

8. The hybrid intercooler system of claim 7, further comprising:

an intercooler water pump disposed in a channel through which the cooling water is supplied from the cooling radiator to the second cooler in the cooling water channel to supply the cooling water to the second cooler.

9. The hybrid intercooler system of claim 8, further comprising:

a first measurer for measuring a temperature of the supercharged air at an outlet of the third cooler.

10. The hybrid intercooler system of claim 9, further comprising:

a second measurer for measuring a temperature of the transmission oil discharged from the transmission oil cooler.

11. The hybrid intercooler system of claim 10, further comprising:

a third measurer for measuring a temperature of the cooling water discharged from the cooling radiator.

12. The hybrid intercooler system of claim 11, further comprising:

a controller for controlling whether to open and close the intercooler valve and whether to operate the intercooler water pump according to information measured by the first measurer, the second measurer and the third measurer.

13. A method of controlling a hybrid intercooler system using multiple cooling media, comprising:

a measurement starting step of starting measurement of a temperature of supercharged air at an outlet of a third cooler, a temperature of transmission oil discharged from a transmission oil cooler and a temperature of cooling water discharged from a cooling radiator;

a first determining step of determining whether the temperature of the supercharged air at the outlet of the third cooler exceeds a preset temperature of the supercharged air;

a second determining step of determining whether the temperature of the cooling water exceeds the temperature of the transmission oil, when the temperature of the supercharged air at the outlet of the third cooler exceeds the preset temperature of the supercharged air; and

a first cooling step of cooling the supercharged air using the transmission oil if it is determined that the temperature of the cooling water discharged from the cooling radiator exceeds the temperature of the transmission oil discharged from the transmission oil cooler.

14. The method of claim 13, wherein the first cooling step includes a step of circulating the transmission oil to the first cooler by stopping an operation of an intercooler water pump and opening an intercooler valve.

15. The method of claim 14, wherein the first cooling step includes a third determining step of circulating the transmission oil to the first cooler and then determining whether the temperature of the supercharged air at the outlet of the third cooler is less than the preset temperature of the supercharged air or whether the temperature of the cooling water discharged from the cooling radiator is less than the temperature of the transmission oil discharged from the transmission oil cooler.

16. The method of claim 15, wherein the first cooling step includes a step of stopping circulating the transmission oil to the first cooler by closing the intercooler valve if it is determined that the temperature of the supercharged air at the outlet of the third cooler is less than the preset temperature of the supercharged air or that the temperature of the cooling water discharged from the cooling radiator is less than the temperature of the transmission oil discharged from the transmission oil cooler.

17. The method of claim 13, further comprising:

a second cooling step of cooling the supercharged air using the cooling water, if it is determined that the temperature of the cooling water discharged from the cooling radiator does not exceed the temperature of the transmission oil discharged from the transmission oil cooler.

18. The method of claim 17, wherein the second cooling step includes a step of circulating the cooling water to the second cooler by closing the intercooler valve and operating the intercooler water pump.

19. The method of claim 18, wherein the second cooling step includes a fourth determining step of circulating the cooling water to the second cooler and then determining whether the temperature of the supercharged air at the outlet of the third cooler is less than the preset temperature of the supercharged air or whether the temperature of the cooling water discharged from the cooling radiator exceeds the temperature of the transmission oil discharged from the transmission oil cooler.

20. The method of claim 19, wherein the second cooling step includes a step of stopping circulating the cooling water to the second cooler by stopping the operation of the intercooler water pump if it is determined that the temperature of the supercharged air at the outlet of the third cooler is less than the preset temperature of the supercharged air or that the temperature of the cooling water discharged from the cooling radiator exceeds the temperature of the transmission oil discharged from the transmission oil cooler.