In-vehicle device cooling device

A cooling device and vehicle-mounted equipment technology, applied in control devices, battery/fuel cell control devices, motor vehicles, etc., can solve problems such as poor fuel consumption and achieve the effect of promoting cooling

Active Publication Date: 2019-03-15
SUBARU CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0008] However, in this case, the battery is cooled excessively during steady driving with a low load on the battery or when the vehicle is parked, resulting in poor fuel consumption.

Method used

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Examples

Experimental program
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Embodiment Construction

[0044] Hereinafter, embodiments of the present invention will be described with reference to the drawings.

[0045]

[0046] First, refer to figure 1 The structure of the in-vehicle equipment cooling device 100 in this embodiment will be described.

[0047] figure 1 It is a block diagram showing a schematic configuration of the vehicle 1 including the in-vehicle equipment cooling device 100 .

[0048] As shown in the figure, a vehicle 1 in this embodiment is an electric vehicle such as an EV (Electric Vehicle) or a PHEV (Plug-in Hybrid Electric Vehicle).

[0049] Specifically, the vehicle 1 includes a high-voltage battery 11 , a cooling fan 12 , a battery CU (Control Unit: Control Unit) 20 , and a sensor group ( 31 to 33 ).

[0050] The in-vehicle equipment cooling device 100 in the present embodiment is mounted on the vehicle 1 and cools the high-voltage battery 11 , and is particularly capable of cooling the high-voltage battery 11 quietly during a traffic jam. Speci...

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Abstract

The present invention provides an in-vehicle device cooling device capable of appropriately cooling a heat generating device while maintaining quietness in the vehicle during traffic jam. The in-vehicle device cooling device (100) includes a cooling fan (12) that cool a high-voltage battery (11) mounted on the vehicle and a battery (CU20). The battery (CU20) determines whether the traveling path of the vehicle is jamming, and calculates a first cooling amount (R1) corresponding to the heat generation amount of the high-voltage battery (11) and a second cooling amount (R2) corresponding to thenoise value in the vehicle. Further, when it is determined that the traveling path is in traffic jam and the first cooling amount (R1) is smaller than the second cooling amount (R2), the battery (CU20) limits the rate of decrease of the cooling amount to be lower than the rising rate, and the cooling fan is operated in such a manner that the high-voltage battery is cooled by a cooling amount larger than the first cooling amount (R1) and less than or equal to the second cooling amount (R2).

Description

technical field [0001] The present invention relates to a technique for cooling a heat-generating device mounted on a vehicle, particularly a technique for appropriately cooling a vehicle during a traffic jam. Background technique [0002] In recent years, electric vehicles called EVs (Electric Vehicles) or HEVs (Hybrid Electric Vehicles) travel by driving a running motor with electric power stored in a battery. [0003] Such an electric vehicle includes a cooling unit for cooling the battery, and performs cooling control according to the load and / or temperature of the battery. [0004] Here, for example, when a cooling fan is used as the cooling unit, it is necessary to increase the rotation speed of the cooling fan in order to increase the cooling strength, and the accompanying noise such as wind noise becomes louder. Therefore, it is necessary to appropriately control the rotation speed of the cooling fan so that the noise does not exceed the interior sound (engine sound...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01M10/42H01M10/613H01M10/625H01M10/63
CPCH01M10/613H01M10/625H01M10/63H01M10/425Y02T10/7072Y02T10/70Y02T90/14Y02E60/10B60L58/26B60L2240/545B60L1/003B60L2240/12B60L2270/142B60L1/02B60L3/00B60L2240/525B60L2240/68B60L2240/36B60W20/15B60W20/17
Inventor 守屋史之田中悠一家永宽史
Owner SUBARU CORP
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