Architecture of a HV Power Battery Protection Devices for Hybrid Electric Vehicles (HEV)

Abstract

Abstract The Hybrid Electric Vehicles (HEV) has high voltage battery whose voltage is higher than the people can endure. The proper insulation should be provided to the HV battery pack but sometime due to abnormal condition the battery insulation get failed. Whereas the HV battery not grounded to chassis if an abnormal condition occurred then a human being get electrified. To resolve the insolation failure this paper aims on Designing HV battery Protection system for Electric vehicles. In this paper we design control strategy and algorithm for battery isolation in electric vehicle. This paper aims to Designing the hardware circuit and algorithm for the isolation. These systems detect resistance in between battery pack chassis and maintain this resistance with standard resistance value. If it is failed to maintain resistance it turned off the battery Precharge switch to avoid malfunctioning. It is convenient, simple and less in cost.