BATTERY PACK AND CONNECTING CIRCUITS OF BATTERY MODULES

摘要

A battery pack and connecting circuits of battery modules. The battery pack includes a plurality of battery modules connected in series, wherein each battery module is provided with a connecting circuit. When the battery module operates normally, the connecting circuit serially connects the current battery module to the previous battery module and the succeeding battery module. When the battery module operates abnormally, the connecting circuit selectively disconnects the current battery module, and if it disconnects the current battery module, it directly connects the previous battery module and the succeeding battery module in series. When a battery module is damaged or abnormal, the current damaged battery module can be disconnected from the series battery pack and bypassed. As such, the previous battery module may be directly connected with the succeeding battery module, ensuring the normal connection of the series circuit.

主权项

1. A battery pack in a vehicle, the battery pack comprising:
a plurality of battery modules connected in series through connecting circuits, the plurality of battery modules including a first battery module; and a control device comprising a processor and a battery monitoring unit, the control device being configured to selectively disconnect any one of the plurality of battery modules from the connecting circuits, wherein:
the battery monitoring unit is configured to monitor multiple working parameters of the battery modules, the working parameters including a first parameter and a second parameter; andthe processor is configured to:
receive the first parameter for the first battery module from the battery monitoring unitreceive the second parameter for the first battery module from the battery monitory unity;determine whether the first battery module is in a first state based on the first parameter and second parameter for the first battery module, wherein the first state indicates the first battery module is in a normal operational state;determine whether the first battery module is in a second state based on the first parameter and second parameter for the first battery module, wherein the second state indicates the first battery module indicates an abnormal state with a potential danger;determine whether the first battery is in a third state based on the first parameter and second parameter for the first battery module, wherein the third state indicates the first battery module indicates an abnormal state with an immediate danger;when the first battery module is determined to be in the second state, generate, without removing the first battery module from the connecting circuits, a first warning to inform the vehicle requires maintenance;when the first battery module is determined to be in the third state, generate instructions for removing the first battery module from the connecting circuits, and a second warning informing a user of the vehicle to leave the vehicle immediately.