Smart batteries for automotive applications (original) (raw)

Application of Smart Batteries

SAE Technical Paper Series, 2002

The US Army has been pursuing the development of a Smart Battery as part of its ongoing efforts for reducing operation and maintenance costs of the Army's ground vehicles. This effort has revealed that the smart battery has a much broader significance beyond that of an operations and maintenance cost reduction exercise. The smart battery is creating a new way of defining what a battery is. The use of smart batteries has a direct bearing on vehicle readiness and enabling system-wide power management.

Design and Realization of a Smart Battery Management System

2012

Abstract—Battery management system (BMS) emerges a decisive system component in battery-powered applications, such as (hybrid) electric vehicles and portable devices. However, due to the inaccurate parameter estimation of aged battery cells and multi-cell batteries, current BMSs cannot control batteries optimally, and therefore affect the usability of products.

A Smart Computing Platform for Dependable Battery Management Systems

2016

An important acceptance criteria for electric mobility is the capability to efficiently use the energy stored into the battery cells over the vehicle lifetime. The battery management system (BMS) plays a central role by estimating the state of charge (current energy available) and state of health (degradation due to ageing effects) of the cells. Improvement of the estimation quality has a direct impact on the battery and thus vehicle range. It is the target of the INCOBAT project to improve the BMS by means of new electronic components, new control strategies and new development methods in order to achieve cost reduction and performance (driving range) increase. In this paper, the INCOBAT project is presented and important results with respect to computing platforms, control strategy and dependability analysis are discussed.

Analysis and Synthesis of Architectures for Automotive Battery Management Systems

Applied Sciences

Current batteries of battery electric vehicles (BEVs) require a battery management system (BMS) in order to enable a safe and long-lasting operation. The main functions of the battery management systems are a continuous monitoring of the voltage of each cell, a continuous monitoring of the battery temperature, the control of the charge current and the discharge current as well as the prevention of both a deep discharge and an overcharging. For the realization of these functions, different architectures are possible, ranging from an individual intelligent system at each cell up to a realization of the whole BMS within one central computing unit for the whole vehicle. This paper investigates and structures different architectural possibilities, discusses analysis possibilities and presents approaches for the synthesis of sensible architectures such as BMS. A concept synthesis for the start-up and shut-down of the high-voltage system is presented by comparing three different integrated...

Smart Battery Management System for Lithium Ion Battery

IRJET, 2022

The battery is a critical component of electric vehicles, which offer a significant step toward achieving sustainable mobility. A vital component of electric and hybrid vehicles is the battery management system. The BMS's job is to ensure that the battery operates safely and reliably. State monitoring and evaluation, charge regulation, and cell balancing are functionalities that have been incorporated in BMS to ensure battery safety. Battery behaves differently under various operational and environmental situations as an electrochemical product. The implementation of these functions is difficult due to the uncertainty of a battery's performance. The evaluation of a battery's state, including its charge, health, and life, is a key responsibility for a BMS. The future problems for BMSs are outlined by analysing the most recent approaches for battery status evaluation.

Analysis of Battery Management Systems

IRJET, 2022

The battery management systems also referred to as BMS is a battery management unit that is not only responsible to measure the state of battery accurately, but it also ensures safe operation and also a prolonged battery life. Because of their high energy density, lifespan, nominal voltage, power density, and low cost, lithium-ion (Li-ion) batteries have received a lot of attention in the EV industry. A smart battery management system (BMS) is an essential component in electric vehicles it not only measures the states of the battery accurately, but it also ensures safe operation and extends battery life. Estimating the state of charge (SOC) of a Liion battery accurately is difficult due to the battery's highly time variant, non-linear, and complex electrochemical system. So in this paper we will study about the various parameters related to battery performance like the state of charge, state of health and also look at over charge and under charge circuits that were designed to monitor the battery health.

INTELLIGENT BATTERY MANAGEMENT SYSTEM FOR FUEL VEHICLES

Sometimes the vehicles wouldn't start this is due to the battery of the vehicle, more specially either it's state of charge(SOC) or it's state of health(SOH).The challenge is to devise a user friendly application based battery management tool through which the user can get critical information about the state of charge(SOC) as well asthe state of health (SOH) along with the set of actions required to ensure a reliability of the starting is maintained.This application also helps in monitoring the temperature of the car battery. Keywords-state of charge, state of health, battery management system ,MQTT protocol. 1.INTRODUCTION Car Battery is one of the most crucial and essential part of the car elements. The Car battery can majorly hamper your fuel economy drastically. If the car is flat then we have to spend hours to start the car .This will not only waste your time but also exert the engine and decrease the life expectancy. So it is important to monitor and manage the health of the battery. The main objective of this paper is to monitor the health level of the battery, temperature of the battery and over voltage protection through mqtt mobile application. A battery management system is essentially the "brain" of a battery pack. It measures and reports crucial information for the operation of the battery and also protects the battery from damage in a wide range of operating conditions. Battery management system for Electric vehicles , Hybrid electric vehicles and even for monitoring and managing mobile batteries,there are proposed models and applications are used. But for Fuel cars there is no hardware modules or software applications to monitor the SOH of the battery. In this paper ,we have used hardware modules such as nodemcu, overvoltage protection circuit, dc buck converter, GSM SIM800L and the software used is Arduino 1.8.7 and the application used for monitoring the battery is linear MQTT (Message Queuing Telemetry Transport) dashboard. 2.EXISITING SYSTEM The Battery Management for electric vehicles have various models and software applications to monitor battery level. The Battery has the great impact on the performance of electric vehicles, basically determining the driving range. Li-ion Batteries are most widely used in the electric cars. The li-ion chemistry is the battery technology of choice due to its good energy density ,good power rating and

Review of Battery Management Systems (BMS

The most crucial component of any electric vehicle (EV) is its battery storage, which stores the energy needed for the vehicle to function. So, an effective battery management system is required in order to get the most out of a battery while also ensuring its safe operation. BMS is a crucial component of any electric car, so there is still a lot of research going on to improve battery management systems. Monitoring, regulating, and optimizing the performance of the battery modules in an electric vehicle is very important. Another is the ability to regulate how the components are disconnected from the system in case of irregular conditions. This management system is nothing but the "battery management system (BMS)". BMS keeps track of the parameters, calculates SOC, and offers essential services to assure the battery's safe functioning. The functionality of BMS, topologies of BMS, and future technologies like wireless BMS are all thoroughly reviewed in this paper.

Battery Management System of E-Smart Vehicle

2016

In this paper the authors present the battery management system (BMS) used for monitoring, evaluation, charge control, and battery cells balancing of E-Smart electric vehicle. E-Smart is an electric vehicle obtained through conversion, of a Smart ForTwo City vehicle, from the internal combustion propulsion system to a system that uses a three-phase asynchronous motor. The purpose of the battery management system is to guarantee safe and reliable operation for all battery cells used to supply the engine electric energy.

Design of Smart Battery Management System for Electric Vehicle

International Journal of Scientific Research in Science, Engineering and Technology, 2020

The Battery is the most basic part of the Electric Vehicle, which serves as a major source of energy and gives it sustainable mobility. In electric vehicles, the technology that is highly recognized and used for energy storage is based on lithium chemistry. Nevertheless, the room for research is still open. This involves the collection of materials for the development of cells. The development of algorithms and the design of electronic circuits for a better and more efficient use of batteries is also one area of study. It is important to keep an eye on the critical operating parameters of the battery during charging for the optimum output of the batteries. A battery management system (BMS) is one of those mechanisms for monitoring internal and ambient battery temperature, current, voltage, and charging and discharge operations. Within this paper we speak about some of the popular battery control methods and framework. We also speak about the state-of-the-art device criteria for optimum battery efficiency and its general architecture.