Dual-battery system has switch feeding current from supply battery to starter battery or from starter battery to starting-related loads depending on operating state

摘要

The system has a starter battery (2), an electrical supply battery (3) and loads divided into starting-related loads and supply-related loads. A switching arrangement between the starter battery and the starting loads and between the supply battery and the starting loads is controlled to allocate the starting loads to a battery by a battery controller (6) between the starter battery and starting loads. Current flows from the supply battery to the starter battery or from the starter battery to the starting loads depending on the operating state. The system has a starter battery (2), an electrical supply battery (3) and loads divided into starting-related loads and supply-related loads. A switching arrangement between the starter battery and the starting loads and between the supply battery and the starting loads is controlled to allocate the starting loads to a battery by a battery controller (6) between the starter battery and starting loads. Current flows from the supply battery to the starter battery or from the starter battery to the starting loads depending on the operating state. Independent claims are also included for the following: a method of starting and operating a two-battery system.