Title :
Impedance based battery diagnosis for automotive applications
Author :
Bohlen, Oliver ; Buller, Stephan ; De Doncker, Rik W. ; Gelbke, Manfred ; Naumann, Rolf
Author_Institution :
Inst. for Power Electron. & Electr. Drives, Aachen Technol. Univ., Germany
Abstract :
In this paper, a procedure is presented, which determines and predicts the pulse power capability of a battery by means of an impedance-based model. This is achieved by a passive impedance measurement technique, which allows using current ripple and fluctuations as a signal source. The advantage of the procedure is its direct determination of the pulse power capability while no indirect and difficult to determine state variables such as state of charge and state of health are needed.
Keywords :
battery powered vehicles; current fluctuations; electric impedance measurement; energy management systems; monitoring; automotive application; battery diagnosis; current fluctuation; current ripple; impedance; impedance measurement technique; pulse power capability; state of charge; state of health; state variable; Aging; Automotive applications; Battery powered vehicles; Circuits; Energy management; Impedance; Power electronics; Power system modeling; Predictive models; Threshold voltage;
Conference_Titel :
Power Electronics Specialists Conference, 2004. PESC 04. 2004 IEEE 35th Annual
Print_ISBN :
0-7803-8399-0
DOI :
10.1109/PESC.2004.1355275
