Battery system and control method thereof
First Claim
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1. A control method for a battery system, comprising:
- monitoring the battery status of a plurality of battery modules of the battery system, each of the plurality of the battery modules including a plurality of switches; and
dynamically controlling a voltage conversion operation mode of the battery system and dynamically controlling the operation modes of each of the plurality of battery modules according to a load requirement, the battery status of each of the plurality of battery modules and a conversion efficiency;
wherein during a transition of mode switching, each of the plurality of battery modules outputs a constant current;
each of the plurality of battery modules has an enable mode and a bypass mode; and
when a battery module of the plurality of battery modules is in the enable mode, a first current is on a first current path comprising the battery module, a second current on a second current path has a pre-determined value, a sum of the first and the second currents is a total current, a first switch of the plurality of switches is in a short condition, and a second switch of the plurality of switches is in an open condition.
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Abstract
A battery system includes a main control module and a battery pack. The battery pack includes a plurality of battery modules. During the transition of mode switching, each of the battery modules outputs a constant current. The battery modules monitor the battery status of the battery modules respectively. Based on a load requirement, the battery status of the battery modules and a conversion efficiency, the main control module dynamically controls a voltage conversion operation mode of a voltage converter of the battery system and dynamically controls the operation modes of the battery modules respectively.
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6 Claims
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1. A control method for a battery system, comprising:
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monitoring the battery status of a plurality of battery modules of the battery system, each of the plurality of the battery modules including a plurality of switches; and dynamically controlling a voltage conversion operation mode of the battery system and dynamically controlling the operation modes of each of the plurality of battery modules according to a load requirement, the battery status of each of the plurality of battery modules and a conversion efficiency; wherein during a transition of mode switching, each of the plurality of battery modules outputs a constant current; each of the plurality of battery modules has an enable mode and a bypass mode; and when a battery module of the plurality of battery modules is in the enable mode, a first current is on a first current path comprising the battery module, a second current on a second current path has a pre-determined value, a sum of the first and the second currents is a total current, a first switch of the plurality of switches is in a short condition, and a second switch of the plurality of switches is in an open condition. - View Dependent Claims (2, 3, 4, 5, 6)
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Specification