A method for operating a traction battery in a motor vehicle, wherein the traction battery is charged in a charging operating state with a fast-charging device. A quantity of energy to be recharged at the fast-charging device is specified. An anticipated heating of the traction battery is determined depending on a charging capacity, which, taking into consideration a predeterminable maximum charging time, is determined from the quantity of energy that is to be recharged. A starting temperature (Tstart) for the battery charging is determined in such a way that, after the charging operation has been carried out at the fast-charging device, a battery operating temperature (Tbatt) of the traction battery does not exceed an upper limit (Thi) for the battery operating temperature. The battery operating temperature (Tbatt) is recorded during a driving operating state of the motor vehicle.
METHOD AND BATTERY MANAGEMENT SYSTEM FOR OPERATING A TRACTION BATTERY IN A MOTOR VEHICLE AND MOTOR VEHICLE HAVING SUCH A BATTERY MANAGEMENT SYSTEM
2018-12-20
Patent
Elektronische Ressource
Englisch
IPC: | B60L PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES , Antrieb von elektrisch angetriebenen Fahrzeugen |
Europäisches Patentamt | 2021
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