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Integrated heat management system of vehicle

A thermal management system, automotive technology, applied in electric vehicles, vehicle components, vehicle energy storage, etc., can solve the problems of rising exhaust air temperature, falling cooling effect, rising air conditioning load, etc. falling effect

Active Publication Date: 2019-10-22
HANON SYST
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0011] However, in such a conventional automobile, a water-cooled cooling device, such as a water-cooled battery cooling device, is additionally turned on (ON) while the air conditioner 10 is being activated. In the case of the air conditioner 20, the air conditioner 10 that is already in operation undergoes a sudden change in the flow rate and a sudden change in the air conditioning load, and due to such a disadvantage, there is a problem that the exhaust air temperature in the vehicle compartment is unstable.
[0012] In particular, when the battery cooling device 20 is additionally turned on (ON) while the air conditioner 10 is in the activated state, the air conditioner of the activated air conditioner 10 The load rises sharply, and the cooling performance of the air conditioner 10 drops sharply due to such a sharp rise in the air-conditioning load.
[0013] and its result, such as As shown in Figure 2, there is a problem that the temperature of the exhaust air in the vehicle compartment rises sharply (A) from the time point when the battery cooling expansion valve 24 of the battery cooling device 20 is turned ON (ON), and the compression The rotation speed of the machine 14 rises sharply (B)
[0014] As a result, there is a problem that the cooling effect in the vehicle interior is significantly reduced, resulting in a decrease in comfort in the vehicle interior and a decrease in the fuel economy of the vehicle
[0015] In addition, such as As shown in FIG. 1, conventional automobiles have the problem of turning off (OFF) the water-cooled battery cooling device 20 while the air-conditioning device 10 and the water-cooled cooling device, such as the water-cooled battery cooling device 20, are simultaneously activated. In the case of the remaining air conditioner 10 being activated, a sudden change in the flow rate and a sudden change in the air-conditioning load occur. Due to such a disadvantage, the exhaust air temperature in the vehicle compartment is unstable.
[0018] As a result, there is a problem that the cooling effect in the vehicle interior is significantly reduced, resulting in a decrease in the comfort of the vehicle interior

Method used

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Examples

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no. 1 Embodiment

[0062] First, before describing the characteristic parts of the integrated thermal management system for automobiles of the present invention, first refer to Figure 4 A brief description of the integrated thermal management system of an automobile is as follows.

[0063] The comprehensive thermal management system of an automobile includes an air conditioner 10 that cools and heats the interior of the vehicle.

[0064] The air conditioner 10 is a heat pump type device and includes a first refrigerant line 12. The first refrigerant line 12 includes a compressor 14, a water-cooled heat exchanger 15, an expansion valve 16 for heat pump mode, an outdoor heat exchanger 17, An expansion valve 18 and an indoor heat exchanger 19 are used in the air-conditioning mode.

[0065] Such a first refrigerant line 12 is controlled to be in the "air-conditioning mode" when the vehicle interior is in the "cooling" state, and the expansion valve 16 for the heat pump mode is opened.

[0066] Th...

no. 2 Embodiment

[0138] re-reference Figure 4 In some cases, the control unit 46 needs to cool the battery B while the air conditioner 10 is OFF, so the water-cooled battery cooling device 20 needs to be turned on (ON).

[0139] In such a case, the control unit 46 controls the battery cooling device 20 and the air conditioner 10 based on the “temperature data” input from the battery temperature detection unit 42 and the cooling water temperature detection unit 44 .

[0140] This is explained in detail as follows: when the cooling in the compartment is not required or the compartment is in the "heating mode", the air conditioner 10 is turned off (OFF), and at this time sometimes it is necessary to cool the battery B, so it is necessary to turn on (ON) the battery cooling device 20.

[0141] In such a case, control unit 46 compares “battery temperature” and “cooling water temperature” input from battery temperature detection unit 42 and cooling water temperature detection unit 44 with preset b...

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Abstract

The invention relates to an integrated heat management system of vehicle. The purpose of the present invention is to prevent a sharp air-conditioning load change in an air-conditioning device when theair-conditioning device turns ON or OFF a water-cooled cooling device, thereby preventing a decrease in refrigeration performance of the air-conditioning device and a sharp temperature change in exhaust air in a vehicle cabin due to the sharp air-conditioning load change. The integrated heat management system for a vehicle includes an air conditioner configured to cool or heat a passenger compartment using a refrigerant, a water-cooled cooling device configured to cool a specific device using the refrigerant of the air conditioner, and an air conditioning load change preventing unit configured to prevent a sudden change in an air conditioning load of the air conditioner when turning ON or OFF the water-cooled cooling device with respect to the air conditioner.

Description

technical field [0001] The present invention relates to an integrated thermal management system for an automobile, and more particularly, to an integrated thermal management system for an automobile that prevents the rapid The cooling performance of the air conditioner and the rapid temperature change of the exhaust air in the vehicle compartment caused by the sudden change of the air conditioning load can be prevented. Background technique [0002] Examples of eco-friendly vehicles include electric vehicles, hybrid (Hybrid) vehicles, fuel cell vehicles (hereinafter collectively referred to as "vehicles"), and the like. [0003] Such automobiles are equipped with various thermal management devices. For example, if figure 1 As shown, there is an air conditioner 10 for cooling and heating the vehicle interior, a water-cooled battery cooling device 20 for cooling the battery B, and the like. [0004] The air conditioner 10 is a heat pump type (Heat Pump Type), and it is cont...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B60H1/00B60L58/26
CPCB60H1/00278B60H1/00735B60H1/00878B60H1/00885B60H2001/00307B60L58/26B60H1/00921B60H2001/00928B60L1/003B60L1/02B60L2240/34B60L2240/36Y02T10/70B60H1/00899B60H1/3208B60H1/3228
Inventor 金斗勋金灦奎安暻周俞相俊韩仲万
Owner HANON SYST
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