IJITEE_paper_monali-converted (2) Essay

International Journal of Innovative Technology and Exploring Engineering (IJ ITEE )

ISSN: 227 8-30 75, Volume -X, Issue -X

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Published By: Blue Eyes Intelligence Engineering & Sciences Publication Retrieval Number: XXXXXXXXX

Abstract : Electric vehicles are increasing day by day because of

its low battery cost and good battery capacity compared to other

technology. Increasing automotive growth in electric vehicles also

increases the automation to use it.Graphical User Interface for

electric vehicles with a full -blown touch screen will become more

easy to use with t he introduction of fast charging st ations.


approach shown to build HMI use Texas Instruments kit and CCS

software. The TM4C123GH6PM processors p rovide scalability it

also provides different processing speeds along with compatible

software to build low – to high -end applications, and prov ides

connecti vity with various peripherals required for EVSE HMI,

such as universal asynchronous receiver/transmitter (UART) and

CAN. Along with this processor touch screen display K350QVGA

(Texas Instruments) is used to test the output screen .

Index Term s: Human Machine Interface, Code Composer

Studio, Texas Instruments.


The market for electric vehicles (EV’s) is emerging where

the interest is higher than ever before (Office of Energy

Effic iency & Renewable Energy, 2016) [1]. The global

act ivity concerning EV’s is increasing due to the strive of

reducing greenhouse gases (NASA, 2016), as well as car

batteries are getting more efficient than before The EV’s on

the market are today charged with a cord that is plugged into

the car. The negative aspects with the cord is that it reacts

badly to altering weather and air temperatures, as well as if

forgetting to plug -in; the car will be powerless.

As the number of EV is increasing day by day on the other

hand charging demand also increases . H ence , the charging

infrastructure as well as efficient Inductive Power Transfer

(IPT) need to developed to meet such requirement for

sub stantial operation of the EVs. For instance, in [2] the

United States (US), and Bhutan has taken initiative to build

cha rging stations in different regions to provide easy charging

services and promote the growth of electric vehicles.

The installation of charging stations will add burden on the

power grid, and the high charging loads of fast EV cha rging

stations will degr ade the distribution network and its

operating parameters . The uncoordinated charging of EV’s

will degrade the voltage profile, peak load during EV

charging and some of the harmonic distortions. Delayed

Charging also provides some consequences similar to

uncontrolled Charging.

In the industrial automation human -machine interaction plays

an important role, the user interface is the process where

interaction betw een humans and machines takes place [ 2].

The major goal of user machine interaction in human mach ine

interface is effective operation of machine and easy control of

machine and feedback/status of operations from the machine

which signals the operator to make different operational

decisions accordingly.

In other words, The HMI gives easy way to intera ct with

machine by using its instruction coding language and get our

work done by machine. It also provides how hardware and

software systems can be designed to expand the human

control. HMI products are developed to make machine

operation easy, by produci ng optimal outputs. Before HMI

was introduced it include the Batch Interface, Command Line

User Interface, and the Graphical User Interface (GUI) for

industrial automation applications, which is used nowadays in

HMI display panels to make user friendly sys tem.

HMI control panels of any system includes

(1) The pushbuttons and control buttons

(2) The data handler

(3) Different LED’s and light indicator .

This paper mainly focus on building graphical user interface

for electric vehicle charging station. Many approaches to

build GUI is discussed in later section. Final i mplementation

is carried using Code Composer S tudio IDE and hardware kit

from Texas Instruments. This Graphical User Interface

provides basic operation required to charge EV with different

optio ns for charging or payment to the user. Moreover this

application can be further used with mobile application to

book the charging slot or search for free charging station

nearby etc.


Graphical User Interface for Electric Vehicle

Charging Station

Prof. Dr. S.P.Ugale, Monali T. Mandlik , Prof . Dr. D.M.Chandwadkar

Graphical User Interface for Electric Vehicle Charging Station


Published By: Blue Eyes Intelligence Engineering & Sciences Publication Retrieval Number: XXXXXXXXX

A. 40V -96V DC Quick Charger for TATA EV,

Mahindra Reva , everito and E2O from MassTech .

Fig. 1. HMI display screen of DC charging station of MassTech

MassTech DC charging station is mainly uses SETQCY

series for fast charging of electric vehicle .IP54 standard is

used to design the produ ct and install with waterproof and

dustproof. This DC fast charging sta tion has charging

interface, human -machine interface, system communications,

billing and ot her parts, modular design, installation is easy ,

simple oper ation and maintenance , and the cha rger with the

use of electric vehicles outdoor DC fast charge ideal choice .


B. GT -PQ 45K 450 -12 by Electway

Fig. 2. HMI display screen of DC charging station of Electway

DC charger comply with the CHAdeMO technology to

charge EV.different protocols are used to communicate

between off board conductive charger a nd battery

management system to meet the CHAdeMO 0.9 version. The

charger may communicate with battery management system

(BMS) of the electric car , it may complete charging according

to the message of the BMS.

C. EVlink quick charging stations from Schneider


Fig. 3. HMI display s creen of Schneider Electric DC charging station

The above fig. shows the EVlink quick charging stations with

50 kW charging power. This charging station allows vehicles

compa tible with this version to recharge the EV in less than 20

minutes. Depending on the options selected, EVlink quick

charging stations offer the following functions [10].

1. User -charging station dialog: touch screen or screen with

keypad for displaying the residual charge and there charging

set point

2. Charging management

3. Socket locked during charging

4. Emergency stop button.

5. Data transmission: Wired connection (Ethernet TCP/IP)

or wireless connection for transmitting data concerning

operation, s tatus, activation/deactivation of the charging

station, etc.

6. Bank card pay station, adapted to suit different countries.

7. Authorized user RFID tag reader: manag ement of the list of

authorized users by remote server .

D. Comparison of Phi Hong EV DC Charge rs

E. Comparison of different Touch T echnology

International Journal of Innovative Technology and Exploring Engineering (IJ ITEE )

ISSN: 227 8-30 75, Volume -X, Issue -X


Published By: Blue Eyes Intelligence Engineering & Sciences Publication Retrieval Number: XXXXXXXXX


• ARM Cortex -M4 micro -controllers is the central

processor to carry out different operations and

provides top performance as well as integration with

different hardware with rich communication features.

Many inbuilt modules which provides rich HMI

application is included in TI Tiva C -series cortex M4

controller [6]. this controller has Ethernet controller


• HMI board includes 7 TFT LCD with

Capacitive/Resistive Touch Pa nel. it can have parallel

interface of 16 bit or extended upto 24bit. Features of

display screen include 7” size with 262k colors,

resolution of 800X480, this controller has inbuilt

LCD interface controller which reduces design


• In HMI communicat ion protocol is important for real

time application hence Ethernet can be used for such

purpose. It allows you to connect and communicate

with one or multiple HMI or between HMI and any

PLC’s present on the field.

• To save the HMI data USB Host or USB OTG c an be

used to store data in Pen drive or any hard drive. This

board has two USB port with 480Mbps speed.one is

USB 2.0 and other USB OTG 2.0.it supports different

types of data transfer.


A. Tiva TM4C129XL Launchpad

The Tiva C Seri es Evaluation Board TM4C129GXL has

ARM Cortex M4 as the main Controller.it is low cost platform

for various applications. The Tiva Launchpad includes

TM4C123GH6PMmicrocontroller,USBinterface( 2.0),motio

n control PWM module.it also includes user buttons and

LED(RGB) that can be programmed according to the custom

application. The Evaluation board has two stackable headers

(40pin booster pack connector) that is used to interface the

different Booster pack directly. There is no need of any

external wire interfac e for such booster pack and other

peripherals. Debug USB port on right side of board is used for

program debugging.USB micro connector is used to connect

board with the system.

Fig. 4. TIVA Evaluation board

B. Touch Screen Display

Fig. 5. BOOSTXL -K350QVG -S1 BoosterPa ck

The K350QVGA display is a booster pack from TEXAS

Instruments which can be directly used with any Launchpad

or evaluation board.it is easy to use and easy to plug in

module. This module can be directly used with

microcontroller to develop applications w hich needs touch

screen color display for displaying output parameters.it has

resistive touch screen. The basic features of this display is

listed below, includes,

Key Features: –

1. Kentec TFT LCD (part number: K350QVG -V2 -F)

2. Display Size of 3.5 -inch QVGA

3. Resolution of 320?240

4. Communication (SPI)

5. Resistive Touch S creen (4 wire)

6. White LED backlight with driver circuit

7. It is compatible for use with 20/40 pin launch pads

Graphical User Interface for Electric Vehicle Charging Station


Published By: Blue Eyes Intelligence Engineering & Sciences Publication Retrieval Number: XXXXXXXXX


Fig. 6. CCS IDE Window

• TI’s Microcontroller a nd Embedded Processors

supports Code Composer Studio as IDE .

• Various embedded applications can be developed an d

debug using different tools of Code Composer

Studio. Tools of CCS includes an optimizing C/C++

compiler, source code editor, project build

environment, profiler, debugger and many other


• This IDE provides good step by step user interface

starti ng from program building to debug interface.

This feature allows user to get easier and faster start

to build any application.

• Code Composer Studio has two advantages of Eclipse

software and debug capabilities of embedded to have

rich development environm ent for developers.


Fig. 7. Experimental Setup for Implementation

The above fig. shows the experimental setup for this

application project. The touch screen display from Texas

Instruments is used to show results.TM4C123GH6M

Launchpad is use d to interface this display. Coding is to be

done using code composer IDE which provides a better

solution for Texas kit to be easily interfaced and use for any



International Journal of Innovative Technology and Exploring Engineering (IJ ITEE )

ISSN: 227 8-30 75, Volume -X, Issue -X


Published By: Blue Eyes Intelligence Engineering & Sciences Publication Retrieval Number: XXXXXXXXX


Fig. 8. Display screen output on K350QVGA touch scree n

The above fig.shows some of the output screen display that

will be used at electric vehicle charging station. Code

composer studio is used for coding and designing of graphical

user window.


This paper introduced the building of human machine

interface using Texas controller and code composer studio

and also selection of HMI screen based on different selection

criteria from different manufactures. The literature activities

showed that resistive touch is best for this application hence

K350QVGA t ouch screen is used to test the display output.

Code composer studio provides a good interface with Texas

instruments kit and booster pack which makes the design

more simple and easy to use .


1. Juan Liu,” Research and Implementation of Electric V ehicle Fast Charging Station Parking Guidance System based on Mobile Terminal”, 2017 9th International Conference on Intelligent Human -Machine Systems and Cybernetics, 978 -1-5386 -3022 -8/17 $31.00 © 2017 IEEE. 2. Nishu Patel, Ekata Mehul,” Low En d Human Machin e Interface (HMI) Display using ARM Cortex M4 Based Controller”, IJSTE – International Journal of Science Technology & Engineering | Volume 1 |Issue 12 June 2015 ISSN (online): 2349 -784X. 3. Petr CHLEBIS, Martin TVRDON, Ales HAVEL, Katerina BARESOVA, “Compari son of Standard and Fast Charging Methods for Electric Vehicles,” Department of Electronics, Faculty of Electrical Engineering and Computer Science, VSB –Technical University of Ostrava, 17. Listopadu 15, 708 33 Ostrava -Poruba, Czech Republic VOLUME: 12, NU MBER: 2 2014JUNE. 4. Chris Fill yaw , Jonathan Friedman, and Sameer M. Prabhu,”Creating Human Machine Interface (HMI) Based Tests within Model -Based Design”, 2007 -01-0780. 5. Marjan Gjelaj, Chresten Tr?holt, Seyedmostafa Hashemi, Peter Bach Andersen ,” Optimal De sign of DC Fast -Charging Stations for EVs in Low Voltage Grids”, Department of Electrical Engineering Technical University of Denmark – Copenhagen, Denmark. 6. www.ti.com 7. www.phihong.c om.tw . 8. 9. 10. -car-charging -station -for-electrivehicle/evlinkchargingstation.


Prof. Dr. Sunita Patil (Ugale) is working as an Associate Professor in Electronics and Telecommunication Engineering department of K. K. Wagh Institute of engineering Education and research, Nashik, Maharashtra since last 20 years. She pursued Bachelor of electronics engineering from the K. K. Wagh Institute of Engineering education and research. She has completed her M. Tech in Electronics Design Technology from DOEACC, Aurangabad and her Ph. D. fro m S.V. National Institute of Technology, Surat. Her special fields of interest include Fiber Optics Communication, Optical Sensors and VLSI technology. She has published more than 50 papers in various National and International Journals and conferences. Sh e is working as a reviewer for various international journals and conferences.Dr. Patil has published 3 books titled “Electrical Circuits & Machines” February 2005 by Central Techno Publication, Nagpur, Fiber Optical Communication: Systems and Components”, 1st ed., Wiley India,(2012) and Fiber Optical Communication: Systems and Components”, Precise text book for AKU, Wiley India,(2014). She bagged “Lady Engineer Award” from Institution of Engineers’ (India) – Nashik in 2008.She has worked as B oard of Studies member of Electronics Engineering for Pune University. She has received research grant from Department of science and technology of India, DHI New Delhi and BCUD . Monali T. Mandlik is a Student of Masters of Engineering (VLSI and Embedde d Syst em) at K.K.W.I.E.E.R Nashik, India . Dr. Dinesh M. Chandwadkar is a Professor and head of E & TC Department at K. K. Wagh Institute of Engineering Education & Research, Nashik, India. His area of interest includes Signal Processing, Power Electron ics, Mechatronics, and Automotive Electronics etc. He has published many research papers in reputed Journals. He is working as Board of Studies member of Electronics and Telecommunication Engineering for Pune University. He is working on a research projec t “

Technology Pilot for DC charging of EV Bus”, funded by, DHI New Delhi .


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