A unique method has been developed to equalize nickel metal hydride (NiMH) battery packs using a new selective equalizer. This equalizer detects batteries either at a very low state of charge (SOC) or at an extremely high SOC. In this system a set of electromechanical relays is connected in a matrix to route boost current to the weaker batteries. The relay switching is controlled by a 32 bit mi...

The weight lightening of electric vehicles’ power battery box not only improves the mileage but also extends service life battery, while in practice design lightweight shall sacrifice its strength for safety reason. Herein, three materials including glass fiber composite, carbon and metal steel are used to develop same their strengths simulated. results show that sheet molding compound (SMC, a ...

Currently, Lithium-ion batteries (LiB) are widely applied in energy storage devices smart grids and electric vehicles. The state of charge (SOC) is an indication the available battery capacity, one most important factors that should be monitored to optimize LiB’s performance improve its lifetime. However, because SOC relies on many nonlinear factors, it difficult estimate accurately. This paper...

To improve the operating performance of large-capacity battery pack electric vehicles during continuous charging and discharging to avoid its thermal runaway, in this paper we propose a new hybrid management system that couples PCM with liquid cooling plate microchannels. The flow direction microchannel structure bottom is designed according characteristics large axial conductivity battery, who...

Li-Ion batteries are widely preferred in electric vehicles. The charge status of batteries is a critical evaluation issue, and many researchers are studying in this area. State of charge gives information about how much longer the battery can be used and when the charging process will be cut off. Incorrect predictions may cause overcharging or over-discharging of the battery. In this study, a l...

Using batteries after their first life in an Electric Vehicle (EV) represents opportunity to reduce the environmental impact and increase economic benefits before recycling battery. Many different second applications have been proposed, each with multiple criteria that be taken into consideration when deciding most suitable course of action. In this article, a battery assessment procedure is pr...

Battery management systems (BMS) are important for ensuring the safety, efficiency and reliability of a battery pack. Estimating internal equivalent circuit model (ECM) parameters battery, such as open voltage, resistance relaxation parameters, is crucial requirement in BMSs. Numerous approaches to estimating ECM have been reported literature. However, existing consider identification joint est...

Estimating the remaining energy in high-capacity electric vehicle batteries is essential to safe and efficient operation. Accurate estimation remains a major challenge, however, because battery state cannot be observed directly. In this paper, we demonstrate a method for estimating battery remaining energy using real data collected from the Charge Car electric vehicle. This new method relies on...

Abstract: This paper presents an on-board vehicular battery charger that integrates bidirectional AC/DC converter and DC/DC converter to achieve high power density for application in electric vehicles (EVs). The integrated charger is able to transfer electrical energy between the battery pack and the electric traction system and to function as an AC/DC battery charger. The integrated charger to...