Internal battery temperature estimation using series battery resistance measurements during cold temperatures
نویسنده
چکیده
A technique has been developed to estimate the internal battery temperature (Tbat) of secondary batteries by measuring the series battery resistance R ) at cold ambient temperatures. Tests were performed on both lead-acid and nickel metal hydride batteries at different cold temperatures to B btain useful plots of RB versus Tbat. RB was measured by using a pulse discharge circuit to apply a short-duration current pulse (IB) directly to the attery. The test results indicated that RB not only varies with temperature but also varies with the amplitude of IB. The RB versus Tbat plots were ater utilized to predict Tbat from RB during alternating current (AC) battery heating at cold ambient temperatures. 2005 Elsevier B.V. All rights reserved.
منابع مشابه
HEV battery heating using AC currents
A unique method has been developed for internally heating hybrid electric vehicle (HEV) batteries at cold temperatures using alternating current (AC). The poor performance of these batteries in cold climates is of major concern because they suffer a huge loss in capacity. Another symptom of this low performance is a dramatic increase in the series resistance of the battery, R B , as the tempera...
متن کاملImproving the Energy Management of Parallel Hybrid Electric Vehicle by Dynamic Programming Using Electro-Thermal Model of Battery
In this paper, an offline energy management system (EMS) is proposed for parallel hybrid electric vehicles (HEVs). The proper energy management system is necessary for dividing torque between electrical motor and Internal Combustion Engine (ICE). The battery is a crucial component of hybrid electric vehicles and affects significantly the cost and the performance of the whole vehicle. The primar...
متن کاملBattery life investigation of a hybrid energy management system considering battery temperature effect
This paper investigates the effect of temperature on a hybrid energy storage system with various energy management systems. The hybrid energy storage system consists of a fuel cell, ultracapacitor and battery with associated DC/DC and DC/AC converters. The energy management strategies employed are the state machine control strategy, fuzzy frequency/logic decoupling strategy, minimization strate...
متن کاملEffects of High Frequency AC Currents on Cold Temperature Battery Performance
A unique method has been developed for internally heating hybrid electric vehicle batteries at cold temperatures using high frequency alternating currents (AC). The poor performance of these batteries in cold climates is of major concern because they suffer a huge loss in capacity. Another symptom of this low performance is a dramatic increase in the series resistance of the battery, RB, as the...
متن کاملInternal Resistance based State of Charge Estimation for Lead acid and Lithium ion Batteries - A Simulink Approach
Estimating the state of charge is important for any battery operated device. In case of automobile batteries, which are designed to deliver large power, many methods such as open circuit voltage based, ampere hour counting based, impedance based are used for calculating the state of charge. Internal resistance of a battery at a particular temperature directly gives the information about the sta...
متن کامل