Real time estimation of Li-ion battery resistance used in the automotive industry

Abstract

An essential characteristic of automotive applications is on-line decision capability/ on-line parameter estimation capability depending of input signals or stimuli. The method for real time estimation of Li-ion battery resistance which is presented into this paper takes into consideration the characteristics of application which is supplied by the battery and the load energy profile which shall be provided by the battery: current maximum value, discharge time, gradient of discharge current, voltage minimum value which is requested by the application in order to work properly.