| 主权项 |
1. A method for charge balancing in a charge storage arrangement having a plurality of charge storage cells connected in series, a first inductive storage element configured to be selectively coupled with the charge storage arrangement, and at least one second inductive storage element configured to be selectively coupled with a first one of the plurality of charge storage cells and inductively coupled to the first inductive storage element, the method comprising:
during a first time period, taking energy from one of the charge storage arrangement or the first one of the plurality of charge storage cells by coupling the associated inductive storage element with the charge storage arrangement or the first one of the plurality of charge storage cells, respectively; during a second time period subsequent to the first time period, feeding back at least a part of the taken energy into the other one of the charge storage arrangement or the first one of the plurality of charge storage cells by coupling an associated inductive storage element with the other one of the charge storage arrangement or the first one of the plurality of charge storage cells, respectively; evaluating at least one of a first voltage and/or a second voltage at least at one time in the first time period to provide a first evaluation result and at least at one time in the second time period to provide a second evaluation result, wherein the first voltage is dependent on a voltage across the first inductive storage element and the second voltage is dependent on a voltage across the at least one second inductive storage element; and detecting a fault in circuitry coupled to the charge storage cells based on the first and the second evaluation result. |
