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International Journal of Innovative Technology and Exploring Engineering (IJ ITEE )
ISSN: 227 8-30 75, Volume -X, Issue -X
1
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.
The
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.
I. INTRODUCTION
The market for electric vehicles (EVs) is emerging where
the interest is higher than ever before (Office of Energy
Effic iency & Renewable Energy, 2016) [1]. The global
act ivity concerning EVs is increasing due to the strive of
reducing greenhouse gases (NASA, 2016), as well as car
batteries are getting more efficient than before The EVs 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 EVs
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 LEDs 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.
II. LITERATURE SURVEY
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
2
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 .
[9].
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
electric
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
3
Published By: Blue Eyes Intelligence Engineering & Sciences Publication Retrieval Number: XXXXXXXXX
III. BLOCK DIAGRAM OF HMI PANEL
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
facility.
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
complexity.
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
PLCs 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.
IV. HARDWARE SOFTWARE OVERVIEW
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
4
Published By: Blue Eyes Intelligence Engineering & Sciences Publication Retrieval Number: XXXXXXXXX
C. CODE COMPOSER STUDIO IDE
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
features.
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.
V. EXPERIMENTAL SETUP
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
application
VI. FLOW OF SYSTEM
International Journal of Innovative Technology and Exploring Engineering (IJ ITEE )
ISSN: 227 8-30 75, Volume -X, Issue -X
5
Published By: Blue Eyes Intelligence Engineering & Sciences Publication Retrieval Number: XXXXXXXXX
VII. RESULTS
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.
VIII. CONCLUSION
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 .
REFERENCES
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.
AUTHORS PROFILE
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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