Method for managing the heat in an electric battery
원문보기
IPC분류정보
국가/구분
United States(US) Patent
등록
국제특허분류(IPC7판)
H02J-007/00
H01M-010/50
출원번호
US-0204437
(2011-08-05)
등록번호
US-8395358
(2013-03-12)
우선권정보
FR-09 00564 (2009-02-09)
발명자
/ 주소
Gaben, Fabien
Douarre, Alain
출원인 / 주소
Dow Kokam France SAS
대리인 / 주소
Harness, Dickey & Pierce, P.L.C.
인용정보
피인용 횟수 :
1인용 특허 :
10
초록▼
The invention relates to a method for managing the heat in an electric battery including a plurality of elements for generating electric power, the method including, when recharging said battery from an external power source, preconditioning said battery at an average temperature T0 and, when using
The invention relates to a method for managing the heat in an electric battery including a plurality of elements for generating electric power, the method including, when recharging said battery from an external power source, preconditioning said battery at an average temperature T0 and, when using said battery, determining the absolute value ΔT2 of the difference between the temperature T0 and the average temperature T of said battery, wherein said method includes activating a heat-conditioning device of the battery when the difference ΔT2 is higher than a setpoint C2, said setpoint being established on the basis of the state of charge (SOC) of said battery.
대표청구항▼
1. A method of thermal management for an electric battery comprising a plurality of elements generating electric energy, said method providing, when recharging the battery from an external power source, for pre-conditioning said battery at an average temperature T0, and, during use of said battery,
1. A method of thermal management for an electric battery comprising a plurality of elements generating electric energy, said method providing, when recharging the battery from an external power source, for pre-conditioning said battery at an average temperature T0, and, during use of said battery, for determining the absolute value ΔT2 of the difference between the temperature T0 and the average temperature T of said battery, said method providing for activating a thermal conditioning device of said battery when the difference ΔT2 is greater than a setpoint C2, said setpoint being established as a function of the state of charge (SOC) of said battery. 2. The method of thermal management according to claim 1, wherein a rule for setting up the setpoint C2 is in descending order as a function of the state of charge (SOC). 3. The method of thermal management according to claim 1, wherein, in the case whereby the difference ΔT2 is greater than the setpoint C2, it provides for the activation of a warming device or a cooling device, respectively, when the temperature T is less than, or greater than, respectively, the temperature T0. 4. The method of thermal management according to claim 3, wherein the setpoint C2 has a first value C2c beyond which the warming device is activated and a second value C2f beyond which the cooling device is activated. 5. The method of thermal management according to claim 1, wherein the preconditioning temperature T0 is set between 15 and 30° C. 6. The method of thermal management according to claim 1, wherein it provides for using a thermal conditioning system comprising a chamber containing a fluid of thermal exchange with said elements, said system further comprising a circulating device for circulating said fluid in said chamber and at least one thermal conditioning device of said fluid. 7. The method of thermal management according to claim 6, wherein the temperature of the fluid is measured to determine the average temperature T of the battery. 8. The method of thermal management according to claim 6, wherein it further provides, during the use of the battery, for determining the difference ΔT1 between the temperatures of the hottest element and of the coldest element and: when the difference ΔT1 is less than the setpoint C1, for deactivating the circulation device as well as the thermal conditioning device or devices;when the difference ΔT1 is greater than the setpoint C1, for activating the circulation device of the fluid by keeping the thermal conditioning device or devices deactivated if the difference ΔT2 is less than the setpoint C2. 9. The method of thermal management according to claim 8, wherein the setpoint C1 is set between 2 and 5° C. 10. The method of thermal management according to claim 1, further comprising determining the absolute value ΔT1 of the difference between the temperature of the hottest element of said battery and the temperature of the coldest element of said battery. 11. The method of thermal management according to claim 10, further comprising activating a thermal conditioning system when the difference ΔT1 is greater than a setpoint C1. 12. The method of thermal management according to claim 11, further comprising keeping the thermal conditioning device or devices deactivated if the difference ΔT2 is less than the setpoint C2. 13. The method of thermal management according to claim 11, wherein activating said thermal conditioning system includes activating a circulation device of said thermal conditioning system.
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