Battery management system, battery pack and vehicle

The embodiment of the utility model relates to a battery management system, a battery pack and a vehicle. The battery management system comprises a front-end acquisition module, a main control module and at least two peripheral modules with different functions, the main control module is respectively connected with the front-end acquisition module and the peripheral module; the front-end acquisition module is connected to two ends of the battery cell and is used for acquiring parameter information of the battery cell; and the peripheral module is used for detecting the working state information of the battery cell. In the implementation frame structure of the battery management system, the working state information of the battery is determined based on the actually detected data, so that the related information of the working state of the battery can be accurately determined. And the number of the peripheral modules is at least two, so that different information of the working states of different working batt