METHOD FOR MANAGING THE HEAT IN AN ELECTRIC BATTERY
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Accused Products
Abstract
Methods for managing the heat in an electric battery, including, when recharging said battery, preconditioning at an average temperature T0 and, when using said battery, determining the difference ΔT1 between the temperatures of the hottest element and of the coolest element and as the absolute value ΔT2 of the difference between the temperature T0 and the average temperature T of said battery. The method includes, when the difference ΔT1 is lower than a first setpoint C1, deactivating the circulating device and as the heat-conditioning devices and, when the difference ΔT1 is higher than a first setpoint C1 or when the difference ΔT2 is higher than a second setpoint C2, activating the fluid-circulating device while keeping the heat-conditioning devices deactivated if the difference ΔT2 is lower than the second setpoint C2, or while activating a heat-conditioning device if the difference ΔT2 is higher than the second setpoint C2.
15 Citations
30 Claims
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1-15. -15. (canceled)
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16. A method of thermal management for an electric battery comprising a plurality of elements generating electric energy, said method providing 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 of said fluid in said chamber and at least one thermal conditioning device of said fluid, said method providing for, during the recharging of the battery from an external power source, preconditioning said battery at an average temperature T0 and, during use of said battery, for determining:
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the difference Δ
T1 between the temperatures of the hottest element and of the coldest element;the absolute Δ
T2 of the difference between the temperature T0 and the average temperature T of said battery;said method providing for; when the difference Δ
T1 is less than a first setpoint C1, deactivating the circulation device as well as the thermal conditioning device or devices;when the difference Δ
T1 is greater than a first setpoint C1 or difference Δ
T2 is greater than a second setpoint C2, activating the circulation device of the fluid by;maintaining the thermal conditioning device or devices deactivated if the difference Δ
T2 is less than the second setpoint C2;activating at least one thermal conditioning device if the difference Δ
T2 is greater than the second setpoint C2. - View Dependent Claims (17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30)
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Specification