CONTROL ARRANGEMENT AND METHOD FOR DETERMINING AN UPPER CHARGING LIMIT FOR AN ENERGY STORAGE DEVICE OF A VEHICLE

Patentradars sammanfattning

Scania CV AB discloses a control arrangement and method for setting an upper state-of-charge (SoC) charging limit for a battery electric vehicle's energy storage device prior to departure from a charging station. The method determines a minimum SoC threshold needed to reach the next predicted regenerative braking event, then estimates the virtual potential energy recoverable via regenerative braking along the planned route while accounting for anticipated changes in vehicle weight or payload. A maximum SoC is computed that leaves sufficient headroom in the battery to absorb that recoverable energy, and this maximum SoC is selected as the upper charging limit when it exceeds the minimum threshold. The approach reduces unnecessary full-charge cycles, lowers operating costs, extends battery life, and avoids energy waste from deliberate pre-downhill discharging.

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