The invention relates to an electric power supply system for an item of electrical equipment, which comprises:a DC power supply bus,a first battery (BATT1) and a second battery (BATT2) which are connected in parallel and each able to deliver a first DC voltage on said DC power supply bus,an auxiliary battery (B_AUX) configured to deliver a second DC voltage (U_AUX),a control unit (UC) configured to:select at least one battery from among the first battery and the second battery in order to set said voltage on the DC power supply bus by connecting it to the DC power supply bus,order the unselected battery to be connected to the DC power supply bus, and said auxiliary battery (B_AUX) to be charged by placing it in series with the unselected battery and by switching the cells of said unselected battery in order to control a charge current (I_aux) for said auxiliary battery.
SYSTÈME D'ALIMENTATION ÉLECTRIQUE
ELECTRIC POWER SUPPLY SYSTEM
ELEKTRISCHES STROMVERSORGUNGSSYSTEM
2023-09-06
Patent
Electronic Resource
French
IPC: | B60L PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES , Antrieb von elektrisch angetriebenen Fahrzeugen |