This paper presents a powertrain control strategy for a series hybrid electric vehicle (SHEV) based on the integrated design of an active charging scenario and fixed-boundary-layer sliding mode controllers (FBLSMCs). An optimized charging curve for the battery is predetermined rather than subject to engine output and vehicle power demand, which is a total inverse of normal SHEV powertrain contr...

This system is designed for outdoor application in un-electrified remote rural areas. This system is an ideal application for house or village street lighting. The system is provided with battery storage backup sufficient to operate the light for 7-8 hours daily. The project is about to develop and fabricate the circuit that can charge the lead acid battery during day time by using solar as the...

At present, the issue of low power factor and harmonic pollution in traditional charge-discharge system is serious, with the development of PWM rectifier technology, A novel main circuit topology of charge-discharge system with a three-phase voltage source PWM rectifier (VSR) and Bi-directional DC-DC converter are applied in this paper. It can be used as battery charging power supply, but also ...

This application note describes the use of current sense amplifiers, differential amplifiers and instrumentation amplifiers to measure battery charge and discharge currents in portable equipment, computer notebooks and USB accessories. It compares high side current sense amplifiers with low side differential amplifiers and recommends selection criteria for current sense resistors. A high voltag...

This paper presents the building process of a small scale, cost effective portable solar power supply. The end product comes with a solar panel to capture and convert solar energy to electrical energy. The electrical energy was stored in a rechargeable battery with a charge controller to regulate the charging process. A battery level indicator was in place to monitor the battery storage capacit...

This article provides the dataset of both the LiFePO4 type lithium-ion battery (LIB) behavior and the Maxwell ultracapacitor behavior. The dynamic stress test (DST) condition and the urban dynamometer driving schedule (UDDS) condition were carried out to analyze the battery/ultracapacitor features. The datasets were achieved at room temperature, in August, 2016. The shared data contributes to c...

This paper focuses on state of charge (SOC) estimation for the battery packs of electric vehicles (EVs). By modeling a battery based on the equivalent circuit model (ECM), the adaptive extended Kalman filter (AEKF) method can be applied to estimate the battery cell SOC. By adaptively setting different weighed coefficients, a battery pack SOC estimation algorithm is established based on the sing...

LiMn2O4 spinel cathode materials have been successfully synthesized by solid-state reaction. Surface of these particles were modified by nanostructured LiFePO4 via sol gel dip coating method. Synthesized products were characterized by thermally analyzed by Thermogravimetric and Differential Thermal Analysis(TG/DTA), X-Ray Diffraction (XRD), Scanning Electron...

The key to improving the performance of lithium-ion batteries is precisely elucidate temporal and spatial hierarchical structure battery. Lithium-ion consist cathodes anodes a separator containing an electrolyte. are made composite material consisting active material, conductive binder form complex three-dimensional structure. reaction proceeds as lithium ions repeatedly inserted into removed f...