Method for diagnosing state of electrical battery of e.g. electric vehicle, involves creating current demand causing transient current supply by battery, and determining status of battery based on measurement of characteristic of battery

摘要

The method involves creating a current demand causing a transient current supply by an electrical battery (10), and measuring characteristic of the battery as function of time, where the current demand is created by controlling a setting operation of current-consuming devices (20, 21) of a vehicle. A status of the battery is determined based on the measurement of the characteristic of the battery, and the state of the battery is notified to a user, where a request for diagnosis and notification of the battery state of the battery are carried out via a man-machine interface (50).