KR20050018184A - Apparatus and method for controlling battery temperature of vehicle - Google Patents

Apparatus and method for controlling battery temperature of vehicle

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Publication number
KR20050018184A
KR20050018184A KR1020030056235A KR20030056235A KR20050018184A KR 20050018184 A KR20050018184 A KR 20050018184A KR 1020030056235 A KR1020030056235 A KR 1020030056235A KR 20030056235 A KR20030056235 A KR 20030056235A KR 20050018184 A KR20050018184 A KR 20050018184A
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South Korea
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temperature
battery
thermoelectric element
heating
cooling
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KR1020030056235A
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Korean (ko)
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KR100552527B1 (en
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박성준
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기아자동차주식회사
현대자동차주식회사
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Priority to KR1020030056235A priority Critical patent/KR100552527B1/en
Publication of KR20050018184A publication Critical patent/KR20050018184A/en
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Publication of KR100552527B1 publication Critical patent/KR100552527B1/en

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    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
    • Y02E60/10—Energy storage using batteries

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  • Electric Propulsion And Braking For Vehicles (AREA)

Abstract

PURPOSE: Provided are apparatus for controlling temperature of battery in vehicle by adapting thermoelectric elements on surface of the battery to forcibly cool or heat then maintain temperature of electrolyte in the battery and method for repeatedly controlling the temperature using the apparatus. CONSTITUTION: The apparatus comprises temperature sensor(26) to detect temperature of battery(20) electrolyte; thermoelectric element for cooling(22) on one side of the battery; thermoelectric element for heating(24) on the other side of the battery; control part(28) for selectively driving both of the thermoelectric elements along to signals detected from the sensor. The method comprises steps of sensing temperature of the battery electrolyte; detecting the sensed temperature from the control part then driving the cooling thermoelectric element if the temperature is above set up temperature while driving the heating thermoelectric element if the temperature is less than the set up temperature.

Description

자동차의 배터리 온도 제어 장치 및 방법{APPARATUS AND METHOD FOR CONTROLLING BATTERY TEMPERATURE OF VEHICLE}APPARATUS AND METHOD FOR CONTROLLING BATTERY TEMPERATURE OF VEHICLE

본 발명은 자동차의 배터리 전해액의 온도를 설정온도로 유지시키도록 하는 것으로, 보다 상세하게는 열전소자에 의한 강제 냉각 및 가열을 실시하여 항시 일정한 설정 온도를 배터리 전해액의 온도를 유지하여 배터리의 성능을 극대화시키도록 한 자동차의 배터리 온도 제어 장치 및 방법에 관한 것이다.The present invention is to maintain the temperature of the battery electrolyte of the car to the set temperature, more specifically, by performing a forced cooling and heating by the thermoelectric element to maintain the temperature of the battery electrolyte at a constant set temperature at all times to improve the performance of the battery The present invention relates to a battery temperature control apparatus and method for an automobile.

일반적으로 배터리는 온도가 낮은 경우에는 전해액의 비중이 작아져서 전력 방출이 감소되어 시동성이 저하되고, 온도가 높은 경우에는 전해액이 증발되어 배터리의 수명이 급격하게 줄어들게 되므로 배터리는 최대 성능을 나타내기 위하여 전해액의 온도를 25℃ 정도를 유지하도록 한다.In general, when the battery is at a low temperature, the specific gravity of the electrolyte is reduced to decrease the power release, and thus the startability is deteriorated. At a high temperature, the electrolyte is evaporated and the life of the battery is drastically shortened. Maintain the temperature of the electrolyte at about 25 ° C.

이와 같이 계절적으로 여름이나 겨울, 혹한지나 혹서지에서는 차량의 배터리 성능이 저하되어 충방전에 영향을 주거나 시동성에 장애를 주게 된다.As such, the battery performance of the vehicle is deteriorated in the summer or winter, in the cold or the cold season, thereby affecting charging and discharging or impairing startability.

종래 자동차의 배터리의 전해액의 온도를 낮추는 방법중 냉각효과가 양호한 방법은 엔진 룸의 소정 지점에 레이아웃을 개선하거나, 배터리에 보호커버를 복개하여 엔진의 열원을 차단하는 방법이 있다.Among the methods of lowering the temperature of the electrolyte of a battery of a conventional vehicle, a method having a good cooling effect is a method of improving a layout at a predetermined point in an engine room or blocking a heat source of an engine by covering a protective cover on a battery.

또한, 현재 가장 많이 보급되는 냉각방식으로는 배터리의 내부에 냉각수를 공급하는 수냉식과, 차량의 주행시 유입되는 바람을 이용하는 통풍방식에 의한 공냉식이 있다.In addition, the most widely used cooling methods currently include a water cooling type for supplying cooling water to the inside of the battery, and an air cooling type using a ventilation method using wind flowing in when the vehicle is driven.

그러나 지금까지 알려진 배터리의 냉각방식에 의하여는 배터리의 전해액을 항시 일정한 온도를 유지하기가 어려워 배터리의 성능 향상에 한계가 있는 문제가 있다.However, the known cooling method of the battery has a problem in that it is difficult to maintain a constant temperature of the electrolyte of the battery at all times, thereby limiting the performance of the battery.

이와 같은 문제점을 감안하여 안출한 본 발명의 목적은 배터리 전해액의 온도를 최적의 온도로 유지하여 배터리의 성능을 극대화시키려는데 있다.The object of the present invention devised in view of such a problem is to maximize the performance of the battery by maintaining the temperature of the battery electrolyte at the optimum temperature.

본 발명의 다른 목적은 엔진열을 이용하여 보조전원의 공급가능하려는데 있다.Another object of the present invention is to be able to supply auxiliary power using engine heat.

상기의 목적을 달성하기 위한 본 발명의 일측면으로서 배터리의 소정 부위에 설치되어 배터리 전해액의 온도를 감지하는 온도센서; 상기 배터리의 일측면에 설치되는 냉각용 열전소자; 상기 배터리의 타측면에 설치되는 가열용 열전소자; 상기 온도센서에서 검출된 신호에 의해 상기 냉각용 열전소자 또는 가열용 열전소자를 선택적으로 구동시키는 제어부;를 포함하여 구성함을 특징으로 하는 자동차의 배터리 온도 제어 장치가 제공된다.As one aspect of the present invention for achieving the above object is installed on a predetermined portion of the battery temperature sensor for sensing the temperature of the battery electrolyte; A thermoelectric element for cooling installed on one side of the battery; A thermoelectric element for heating installed on the other side of the battery; And a control unit for selectively driving the cooling thermoelectric element or the heating thermoelectric element by the signal detected by the temperature sensor.

여기서 상기 냉각용 열전소자 및 가열용 열전소자를 구동시키는 전원은 차량의 엔진에 설치되어 엔진에서 발생되는 열에너지를 전기에너지로 전환하는 열발전용 소자인 것이 바람직하다.Here, the power source for driving the cooling thermoelectric element and the heating thermoelectric element is preferably a heat generating element installed in the engine of the vehicle and converts thermal energy generated from the engine into electrical energy.

또한, 본 발명의 다른 측면으로서 배터리 전해액의 온도를 감지하는 온도감지 단계; 상기 감지된 온도를 제어부에서 검출하여 배터리 전해액의 온도가 설정온도보다 높은 경우에는 냉각용 열전소자를 구동시켜 설정 온도만큼 배터리를 냉각시키고, 배터리 전해액의 온도가 설정온도보다 낮은 경우에는 가열용 열전소자를 구동시키는 설정 온도만큼 배터리를 가열하는 온도조절 단계;로 구성하여 상기 온도감지 단계와 온도조절 단계를 반복적으로 수행하는 것을 특징으로 하는 자동차의 배터리 온도 제어 방법이 제공된다.In addition, a temperature sensing step of sensing the temperature of the battery electrolyte as another aspect of the present invention; When the detected temperature is detected by the controller, when the temperature of the battery electrolyte is higher than the set temperature, the cooling thermoelectric element is driven to cool the battery by the set temperature, and when the temperature of the battery electrolyte is lower than the set temperature, the heating thermoelectric element. A temperature control step of heating the battery by a set temperature to drive the; is provided with a battery temperature control method of a vehicle, characterized in that to perform the temperature sensing step and the temperature control step repeatedly.

이하, 상기한 바와 같은 본 발명의 바람직한 실시예를 첨부도면에 의거하여 보다 상세하게 설명한다.Hereinafter, preferred embodiments of the present invention as described above will be described in more detail with reference to the accompanying drawings.

첨부도면 도 1은 본 발명에 의한 자동차의 배터리 온도 제어 장치의 구성도이고, 도 2는 본 발명 장치에 의한 온도 제어 방법의 동작 흐름도이다.1 is a configuration diagram of a battery temperature control apparatus for a vehicle according to the present invention, and FIG. 2 is an operation flowchart of a temperature control method according to the present invention.

이에 도시한 바와 같이, 본 발명의 일실시예는 차량의 엔진(10)에는 열발전용 소자(12)가 설치되어 있고, 배터리(20)에는 냉각용 열전소자(22)가 일측면에 설치되어 있으며 배터리의 타측면에는 가열용 열전소자(24)가 설치되어 있다. As shown in the drawing, according to one embodiment of the present invention, a heat generating element 12 is installed in an engine 10 of a vehicle, and a cooling thermoelectric element 22 is installed in one side of a battery 20. The other side of the battery is provided with a heating thermoelectric element 24.

또한, 배터리에는 배터리의 온도를 감지하기 위한 온도센서(26)가 설치되어 있고, 온도센서에는 온도센서에서 검출된 데이터에 의해 상기 냉각용 열전소자 및 가열용 열전소자를 구동시키는 제어부(28)가 연결되어 있다.In addition, the battery is provided with a temperature sensor 26 for sensing the temperature of the battery, the temperature sensor has a control unit 28 for driving the cooling thermoelectric element and the heating thermoelectric element by the data detected by the temperature sensor It is connected.

이러한 제어부(28)는 냉각용 열전소자(22)와 가열용 열전소자(24)에 각각 연결되어 있다.The control unit 28 is connected to the cooling thermoelectric element 22 and the heating thermoelectric element 24, respectively.

본 발명의 실시예에서 제어부와 소자의 전원은 배터리(20)의 전원과, 엔진(10)의 열에너지를 전기에너지로 전환시키는 열발전용 소자(12)의 전원을 사용하였으나, 배터리의 전원만을 사용하더라도 무방하다.In the embodiment of the present invention, the power source of the control unit and the device uses the power of the battery 20 and the heat generating element 12 for converting the thermal energy of the engine 10 into electrical energy, but using only the power of the battery. If you can.

배터리(20)의 표면에 설치되는 냉각용 열전소자(22) 및 가열용 열전소자(24)는 충방전에 영향을 크게 미치지 않는 범위 내에서 사용되고, 설치위치는 배터리의 전해액을 최대한 냉각/가열하기 적당한 부위에 장착되며, 가장 적합하기로는 제품 HM6040(크기 40×40)을 4개 설치하여 총필요 전력 360W로 사용하는 것이 바람직하다.The cooling thermoelectric element 22 and the heating thermoelectric element 24 installed on the surface of the battery 20 are used within a range that does not significantly affect charging and discharging, and an installation position is used to cool / heat the electrolyte of the battery as much as possible. It is preferable to install the product HM6040 (size 40 × 40) with the total required power of 360W.

또한, 엔진(10)에 설치되는 열발전용 소자(12)는 360W의 출력을 낼 수 있도록 치수(L×W×H)40×40×3.3인 제품 HMG20 72개를 직렬로 부착하며, 이때 부착되는 위치는 엔진의 표면 및 배기 머플러와 같이 온도차를 최대로 낼 수 있는 위치에 부착하여 사용하는 것이 바람직하다. 이와 같은 열발전용 소자는 현재는 고가이지만 향후에는 코스트가 다운되어 효율의 증대가 가능할 것이다.In addition, the heat generating element 12 installed in the engine 10 attaches 72 HMG20 products having dimensions (L × W × H) 40 × 40 × 3.3 in series so as to produce 360W of power. It is preferable to attach and use the position to the position which can make a maximum temperature difference, such as the surface of an engine and an exhaust muffler. Such a heat generating device is expensive at present, but in the future, the cost will be lowered, thereby increasing efficiency.

이와 같이 구성되는 본 발명은 열발전용 소자를 엔진에 설치하여 엔진에서 발생되는 열에너지를 전기에너지로 변환하여 배터리의 온도를 제어하는 전원으로 사용하게 된다.According to the present invention configured as described above, a heat generating device is installed in an engine to convert thermal energy generated from the engine into electric energy to be used as a power source for controlling the temperature of the battery.

일예로서 온도센서에 의해 감지되는 배터리의 온도가 설정온도인 25℃보다 높은 경우에는 제어부의 명령에 의해 냉각용 열전소자가 구동되어 배터리 전해액의 온도가 설정온도 25℃로 저하되는 상태까지 냉각시킨다.As an example, when the temperature of the battery detected by the temperature sensor is higher than the set temperature of 25 ° C, the thermoelectric element for cooling is driven by a command of the controller to cool the battery electrolyte to a state where the temperature of the battery electrolyte drops to the set temperature of 25 ° C.

또한, 온도센서에 의해 감지되는 온도가 25℃보다 낮은 경우에는 가열용 열전소자가 구동되어 배터리 전해액의 온도가 설정온도 25℃로 상승되는 상태까지 가열동작이 실시된다.In addition, when the temperature sensed by the temperature sensor is lower than 25 ℃ the heating thermoelectric element is driven to perform a heating operation until the temperature of the battery electrolyte is raised to the set temperature 25 ℃.

이와 같은 배터리의 온도 제어 동작을 도 2의 흐름도를 참조하여 설명하면 다음과 같다.The temperature control operation of the battery will be described with reference to the flowchart of FIG. 2.

배터리 전해액 온도가 온도센서에 의해 감지되어 제어부에 입력되면 감지된 온도가 설정 최적 온도인 25℃이면 종료된다.When the battery electrolyte temperature is detected by the temperature sensor and input to the controller, the detected temperature is terminated when the set temperature is 25 ° C, which is the optimum temperature.

이때, 감지된 배터리 전해액의 온도가 최적 온도인 25℃ 보다 큰 경우에는 열전소자에 12V의 전압이 인가되어 냉각모드가 실시되며, 감지된 배터리 전해액의 온도가 25℃ 보다 작은 경우에는 열전소자에 -12V의 전압이 인가되어 가열모드가 실시된다.At this time, if the detected temperature of the battery electrolyte is greater than 25 ° C, which is the optimum temperature, a voltage of 12V is applied to the thermoelectric element, and the cooling mode is performed. A voltage of 12V is applied to effect the heating mode.

이와 같이 입력되는 배터리 전해액의 온도에 의해 배터리에 설치된 열전소자로 인가되는 전압의 출력이 하이(12V)와 로우(-12V)로 가변되어 배터리 전해액의 온도는 일정 온도가 유지되는 것이다.In this way, the output of the voltage applied to the thermoelectric element installed in the battery is varied by a high (12V) and a low (-12V) by the temperature of the battery electrolyte input so that the temperature of the battery electrolyte is maintained at a constant temperature.

이상에서 설명한 바와 같이, 본 발명에 의한 자동차의 배터리 온도 제어 장치는 배터리의 표면에 열전소자를 설치하여 강제 냉각 또는 강제 가열함으로써 배터리 전해액의 온도를 일정하게 유지시킴으로써 배터리의 성능을 최적화시키는 효과가 있다.As described above, the battery temperature control apparatus of the vehicle according to the present invention has an effect of optimizing the performance of the battery by maintaining a constant temperature of the battery electrolyte by installing a thermoelectric element on the surface of the battery by forced cooling or forced heating. .

아울러 엔진에 열발전용 소자를 설치하여 엔진의 온도와 외기의 온도차를 기전력으로 전환하여 배터리 온도 제어에 따른 전원으로 이용할 수 있는 효과도 있다.In addition, by installing a heat generating element in the engine there is an effect that can be used as a power source according to the battery temperature control by converting the temperature difference between the engine temperature and the outside air to electromotive force.

도 1은 본 발명에 의한 자동차의 배터리 온도 제어 장치의 구성도.1 is a configuration diagram of a battery temperature control apparatus for a vehicle according to the present invention.

도 2는 본 발명 장치에 의한 온도 제어 방법의 동작 흐름도.2 is an operation flowchart of a temperature control method by the device of the present invention.

< 도면의 주요 부분에 대한 부호의 설명 ><Description of Symbols for Main Parts of Drawings>

10 ; 엔진 12 ; 열발전용 소자10; Engine 12; Thermal element

20 ; 배터리 22 ; 냉각용 열전소자20; Battery 22; Thermoelectric element for cooling

24 ; 가열용 열전소자 26 ; 온도센서24; Thermoelectric element 26 for heating; temperature Senser

28 ; 제어부28; Control

Claims (3)

배터리의 소정 부위에 설치되어 배터리 전해액의 온도를 감지하는 온도센서;A temperature sensor installed at a predetermined portion of the battery and sensing a temperature of the battery electrolyte; 상기 배터리의 일측면에 설치되는 냉각용 열전소자;A thermoelectric element for cooling installed on one side of the battery; 상기 배터리의 타측면에 설치되는 가열용 열전소자;A thermoelectric element for heating installed on the other side of the battery; 상기 온도센서에서 검출된 신호에 의해 상기 냉각용 열전소자 또는 가열용 열전소자를 선택적으로 구동시키는 제어부;를 포함하여 구성함을 특징으로 하는 자동차의 배터리 온도 제어 장치.And a controller for selectively driving the cooling thermoelectric element or the heating thermoelectric element according to the signal detected by the temperature sensor. 제 1 항에 있어서,The method of claim 1, 상기 냉각용 열전소자 및 가열용 열전소자를 구동시키는 전원은 차량의 엔진에 설치되어 엔진에서 발생되는 열에너지를 전기에너지로 전환하는 열발전용 소자인 것을 특징으로 하는 자동차의 배터리 온도 제어 장치.The power source for driving the cooling thermoelectric element and the heating thermoelectric element is a battery temperature control device of a vehicle, characterized in that the heat generating element for converting the thermal energy generated in the engine into electrical energy installed in the engine of the vehicle. 배터리 전해액의 온도를 감지하는 온도감지 단계;A temperature sensing step of sensing a temperature of the battery electrolyte; 상기 감지된 온도를 제어부에서 검출하여 배터리 전해액의 온도가 설정온도보다 높은 경우에는 냉각용 열전소자를 구동시켜 설정 온도만큼 배터리를 냉각시키고, 배터리 전해액의 온도가 설정온도보다 낮은 경우에는 가열용 열전소자를 구동시키는 설정 온도만큼 배터리를 가열하는 온도조절 단계;로 구성하여When the detected temperature is detected by the controller, when the temperature of the battery electrolyte is higher than the set temperature, the cooling thermoelectric element is driven to cool the battery by the set temperature, and when the temperature of the battery electrolyte is lower than the set temperature, the thermoelectric element for heating. A temperature adjustment step of heating the battery by a set temperature for driving the 상기 온도감지 단계와 온도조절 단계를 반복적으로 수행하는 것을 특징으로 하는 자동차의 배터리 온도 제어 방법.Battery temperature control method of a vehicle, characterized in that to perform the temperature sensing step and the temperature control step repeatedly.
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US8568913B2 (en) 2011-03-08 2013-10-29 Samsung Sdi Co., Ltd. Battery module
CN103531864A (en) * 2013-10-21 2014-01-22 三门峡速达交通节能科技股份有限公司 Battery box heat management system and method for electric automobile
KR20140010664A (en) 2012-07-16 2014-01-27 현대자동차주식회사 Method for contronlling temperature rise of an electric car battery for increasing the available energy thereof when the battery is in a low temperature
KR20140031158A (en) * 2010-08-12 2014-03-12 후루카와 덴끼고교 가부시키가이샤 Battery temperature regulation system and battery temperature regulation unit
CN105008184A (en) * 2013-06-07 2015-10-28 株式会社Lg化学 Battery safety device
KR20150126837A (en) * 2013-01-30 2015-11-13 젠썸 인코포레이티드 Thermoelectric-based thermal management system
KR20160074230A (en) 2014-12-18 2016-06-28 한화테크윈 주식회사 Battery temperature controlling system
US11152557B2 (en) 2019-02-20 2021-10-19 Gentherm Incorporated Thermoelectric module with integrated printed circuit board
US11264655B2 (en) 2009-05-18 2022-03-01 Gentherm Incorporated Thermal management system including flapper valve to control fluid flow for thermoelectric device
US11993132B2 (en) 2018-11-30 2024-05-28 Gentherm Incorporated Thermoelectric conditioning system and methods

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US11264655B2 (en) 2009-05-18 2022-03-01 Gentherm Incorporated Thermal management system including flapper valve to control fluid flow for thermoelectric device
KR20140031158A (en) * 2010-08-12 2014-03-12 후루카와 덴끼고교 가부시키가이샤 Battery temperature regulation system and battery temperature regulation unit
US8568913B2 (en) 2011-03-08 2013-10-29 Samsung Sdi Co., Ltd. Battery module
KR20140010664A (en) 2012-07-16 2014-01-27 현대자동차주식회사 Method for contronlling temperature rise of an electric car battery for increasing the available energy thereof when the battery is in a low temperature
KR20150126837A (en) * 2013-01-30 2015-11-13 젠썸 인코포레이티드 Thermoelectric-based thermal management system
CN105008184A (en) * 2013-06-07 2015-10-28 株式会社Lg化学 Battery safety device
CN103531864A (en) * 2013-10-21 2014-01-22 三门峡速达交通节能科技股份有限公司 Battery box heat management system and method for electric automobile
KR20160074230A (en) 2014-12-18 2016-06-28 한화테크윈 주식회사 Battery temperature controlling system
US11993132B2 (en) 2018-11-30 2024-05-28 Gentherm Incorporated Thermoelectric conditioning system and methods
US11152557B2 (en) 2019-02-20 2021-10-19 Gentherm Incorporated Thermoelectric module with integrated printed circuit board

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