CODE % Performing interpolation in given data.V = xlsread ('VI.xlsx', 'A:A');                                       % Reading voltage data from A column of excel file. I = xlsread ('VI.xlsx', 'B:B');                                        % Reading current data from B column of excel file.format compact;               …

AIM : Designing a Simulink model for DC Motor and using a PID controller to maintain desired speed of DC Motor. THEORY : DC Motor circuit is as follows. Applying KVL to DC motor circuit. Vs = Ra*ia + La*(dia/dt) + Vb     Vb = Km*(dtheta/dt) Therefore, Vs = Ra*ia + La*(dia/dt) + Km*(dtheta/dt) ...........(1)…

___Q1___ AIM : To check whether an EV can travel for 45km with 500kg cargo mass in an FTP cycle. GIVEN :  ADVISOR tool. EV_defaluts_in file. Cargo mass = 500 kg. Distance to be travelled 45 km. All others defalut conditions. THEORY :      1- Selecting EV_defaluts_in file from drop down menu.  …

___Q1___ What is the difference between mapped and dynamic model of engine, motor and generator? How can you change model type?    MAPPED MODEL DYNAMIC MODEL SETTINGS  It is default system setting.  It needs to be chosen by the user. DATA  It runs based on data given in standard look up tables.…

___Q1___ Which types of power converter circuits are employed in electric and hybrid electric vehicle? Answer :   There are mainly 3 types of power converter used in an EV or HEV. Diagram above shows their location. 1- AC to DC converter. It is also called as Rectifier. It converts AC supply into DC supply. The block…

___Q1___ A. Explain a MATLAB demo model named ‘Speed control of a DC motor using BJT H-bridge. B. Comment on the armature current shoot-up from the scope results. Answer :    CONSTRUCTION : The model is constructed using a BJT H-bridge, a Pulse Width Generator, a Fan type load and a DC motor.    BJT…

___Q1___ AIM : To calculate the energy required for braking. THEORY :  A drive cycle is created in Excel file name - 'My Drive Cycle'. It is then read into Matlab for further calculations. Energy required for braking is given by - `1/2*m.v^2` = `1/2*m*(U-V)^2` where, m = mass of vehicle.      …

Project-1: Powertrain For Aircraft In Runways PART - A ___Q1___ Search and list out the total weight of various types of aircrafts. ----> Aircrafts are classified as follows :- A) Aerostats   Blimp - It is an airship without an internal structural framework. It relies on the pressure of the lifting gas (usually…

Final Project: Design of an Electric Vehicle AIM : To create a MATLAB model of electric car which uses a Battery and a DC Motor. THEORY :  Block Diagram of an EV :- Taking a look at each block -  1 - Vehicle Body. R is Rotational input port from motor, V is Vehicle Velocity output port. It is modeled using 4…

Final Project: Electric Rickshaw modelling AIM : To create a detailed MATLAB model of an electric rickshaw (three wheel passenger vehicle). OBJECTIVE :  Rear wheel driven by PM brushed typed motor. Energy Consumption calculation. Temperature rise of motor & controller calculation. THEORY :  Block Diagram of…

PROJECT - 1 ___Q1___ AIM : To design a battery pack for a car roughly 150 kW with 120 V. OBJECTIVE : a. Design the battery pack configuration.                       b. Draw the BMS topology for this battery pack. THEORY :  Cell Data :  Chemistry - NMC Nominal…

PROJECT - 2 AIM : To find maximum heat generation of the battery & SOC of the battery at 2*104 seconds of the battery operation. GIVEN :  Battery Resistance = 0.0005 `Omega` Delta Time = 0.1 Entropic Factor = 2. Time Time Step Battery Current 00:00.4 0.1 -0.9632 00:00.5 0.2 -0.952 00:00.6 0.3 -0.9072 00:00.7…

Q. Compare the different architectures of HEV. Discuss the pro's and con's. ----> HEV stands for Hybrid Electric Vehicle. Different architectures of HEV are Series, Parallel & Sereis-Parallel. 1. Sereis HEV   It has 2 energy source components in sereis to drive the transmission i.e. Motor and ICE. In Battery…

Q1. Compare the different motors used in EV and list down the advantages and disadvantages of each. ---->    DC IM PMSM SRM Power Density Low Medium Very High Medium Efficiency Low Medium Very High Medium Controllability Very High  Very High High Medium Reliability Medium Very High High Very High…

Q.) For any 3 electric vehicles compare the battery pack and charging system requirements.  ---->  2 Wheeler (Ola S1) - Battery Pack Size : 60V 3.97 kWh - Number of Cells : 224 - Charger : 750 W   3 Wheeler (Mahindra Treo) - Battery Pack Size : 48V 7.37 kWh - Charger : 34A 2000W   4 Wheeler (Tata Nexon) - Battery Pack…

Q.) Discuss two new trends in battery system field. ---->  1. Battery Swapping Technology. - It allows EVs to exchange a discahrged pack for a charged one as an alternative to plugging the vehicle into charging station. - It is a time saving method of refulling an EV. - Currently it supports integration in 2 & 3 wheelers…

Q.) Explain the various applications of Power converters in an Electric vehicle. For Example what type of converter will you use for Horn which requires DC and less than 10V. Likewise come up with different applications ----> In an EV application of Power Converter is as follows Rectifier - AC to DC converter - Used in…

PROJECT 1 - Loss Calculation for DC/DC Converter AIM : Design a Boost Converter, Calculate loss of different components and derive efficiency of the same. THEORY : A boost converter Step Ups or Boost the output voltage when connected across a specifed DC voltage source. Diagram below shows circuit diagram of Boost Converter…

Project 2 - EV Application of Induction Motor ___Q1___ AIM : Open Loop speed control of 3 phase Induction Motor using V/F method. THEORY :  - Three phase Induction Motor (IM) produces Rotating Magnetic Field (RMF) rotating at Synchronous Speed (`N_s`). - `N_s = (120*f)/P` - EMF induced in IM is given by, `V\…

Project 1 : Modelling an Electric Car with Li-ion Battery AIM : To create a MATLAB model of electric car which uses lithium ion battery and suitable motor. THEORY :  Block Diagram of an EV :- Taking a look at each block -  1 - Vehicle Body. R is Rotational input port from motor, V is Vehicle Velocity output…