abstract |
The present invention relates to a device and method for diagnosing the state of a battery pack and, more specifically, to a device and method for diagnosing the state of a battery pack on the basis of the states of charge of battery modules provided in the battery pack. According to the present invention, the states of charge of battery modules are estimated in response to an induced abnormal situation, and the state of each of the battery modules is diagnosed on the basis of the estimated states of charge. Accordingly, possible risk factors in the battery modules can advantageously be diagnosed in advance. |