Abstract
Battery, power electronics and electric motor are the main components of electric vehicles (EVs). Their failure in EVs may result in severe system breakdown, or even life threat. This paper gives a brief review of fault diagnoses with respect to battery, power electronics and electric motor in EVs. Current and voltage are the most commonly used detection parameters for EVs. Apart from these, temperature, vibration, power, noises, and torque are also utilized on the basis of different detecting techniques. It shows that the battery has already had a relatively well-developed diagnostic system in EVs, namely battery management system. Although much literatures has illustrated various fault diagnostic systems for electric motor and power electronics individually, a few studies have been done specifically for EVs.
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