Week 2 Challenge

    EV Refresher  Batch-5   Direct Torque Control Method of Indution motor Initially we are taking the 3 Phase supply and converting it into DC using the Diode rectifier 3-phase Supply voltage   By using the DC link capacitor and Braeaking chopper the DC voltage at the input of inverter can be…

    EV Refresher Batch-5     Losses in a converter There are two types of losses  1. Conduction losses 2. Switching Losses     Conduction losses: Pcond = Enegy consumed during Conduction * Switching frequency Energy consumed during conduction is given by  Conduction power losses…

Aim:  To design the one of the ADAS feature know as the Adaptive Cruse Control (ACC). This feature has the ability to follow the lead vehicle and set its speed according to the lead vehicle. The Adaptive Cruise Control feature can reduce the stress on the driver by automatically controlling the vehicle speed & maintaining…

Aim:  To built the Vehicle direction determination using the camara and the SteeringWheel_YawDegree angle as inputs and indicating the vehicle direction. Camera reads the road signs & stores into its memory with unique values for left turn, right turn & straight drive. Depending on the direction it is taking,…

Aim: Run simulations, change the threshold, create plots and measure current and hydrogen consumption. Specify the outputs. How to run the model.  Simulation Model:   The total model is divided into 3 parts Driver block Power train block Vehicle Model 1) Driver Block: By taking the referance speed and vehicle…

Load the vehicle parameters. Complete the vehicle model by modelling the remaining equations. Set simulation stop time to 598 sec. The output should be the vehicle velocity.     Above model is the main working model of the Vehicle model. In practical the total torque developed by the motor will not recah to the…

Complete the energy management strategy model with battery, UC and fuel cell for the positive power and distribute the power demand among these components. Set simulation stop time to 598 sec. The output of the model should be the power request from UC, fuel cell and battery.   Let us assume some conditions for the…

Load the UC parameter file. Complete the Ultracapacitor model. Set simulation stop time to 598 sec. The model output should give, current, SOC and Voltage as output.   The parameters for the UC are given by  Capacitance (C) = 83 F Efficiency (n) = 90% = 0.9 Lumped Resistance (R) = 0.1 Max voltage (V_Max) = 750…

Aim:   Create a stateflow or Simulink model for the following flowchart. Load the .mat file into the workspace. The input to the model would be the power demand. The output should be: Fuel cell power Battery power FC Operating state (running, standby) Create plot of these outputs against time.   Analysis: By…

Question 1: Consider a scenario where an aggressive driver is accelerating very rapidly and braking harshly in a city driving. Is battery better a choice to supply power than UC in this scenario? True False Why?   False. The battery is not going to be the best choice in the given scenario.Beacuse as the driver is requesting…

Question 1:Compare four different types of fuel cells and state their applications. Types of Fuel Cells  Polymer Electrolyte Membrance Fuel Cell (PEM) Alkaline Fuel Cell (AFC) Direct Methonol Fule Cell (DMFC) Solid Oxide Fuel cell (SOFC)   Polymer Electrolyte Membrance Fuel Cell (PEM) Alkaline Fuel Cell (AFC)…

Aim:  Using MATLAB/simulink and  the drive cycle from the attached excel sheet, find- The max heat generation of the battery  The SOC of the battery at 2 *104second of the battery operation 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 0.4 -0.9632 00:00.8 0.5 -1.0304…

Que-1) Design a battery pack for a car roughly 150 Kw with 120 V. Use 3500 mAh 3.6V nominal NMC chemistry cell. Design the battery pack configuration.  Draw the BMS topology for this battery pack.   Aim: To design the battery pack with the capacity 150Kw 120V by using 3500mAh 3.6V. And BMS topology for the battry…

Aim: Create a MATLAB model of electric car which uses lithium ion battery and suitable motor. Choose suitable blocks from Simscape or Powertrain block set. Implement the vehicle speed control using PI controller and generate brake and accelerator commands. Avoid using readymade driver block for speed control.   Objectives:…

Aim:  Create a detailed MATLAB model of an electric rickshaw (three wheel passenger vehicle) as per details below:  Rear wheels driven by PM brushed type motor Assume efficiency points of motor controller and motor Objective: For any three standard driving cycles show energy consumption, temperature rise of motor …

MATLAB model of electric car which uses a battery and a DC motor Electrical Vehicle: The vehicle which uses the Electrical motor as Engine and Electrical power as fuel source is known as Electrical Vehicle.The electrical motor are of diffent types according to their advantanges their are chosen.The fule source is battery…

Part A: Que-1) Search and list out the total weight of various types of aircrafts.  Name of the Aircraft  Gross Weight in KG Antanov AN-225 6,40,000 Airbus A380-800 5,75,000 Boeing 747-800 4,47,700 Airbus A340-500 3,72,000 Boing 777-300ER 3,52,000 Boienig 787-10 2,54,000 Boeing 737-900 85,000 Airbus A320-100…

Que-1) For a defined driving cycle, calculate the energy required for braking.   The total weight of vehicle is taken as 800kg  The derive cycle is generated using time and velocity data From this only deceleration i.e.,Breaking is saparated Deceleration  Time(sec) Speed(KMPH) t1 t2 t2-t1 v1 v1 v1-v2 6 10…

 Que-1):  A. Explain a MATLAB demo model named ‘Speed control of a DC motor using BJT H-bridge’. The model was download from the given link below https://in.mathworks.com/help/physmod/sps/ug/speed-control-of-a-dc-motor-using-bjt-h-bridge.html?s_tid=srchtitle_Speed%2520control%2520of%2520a%2520DC%2520motor%2520using%2520BJT%2520H-bridge_1…

Que -1) Which types of power converter circuits are employed in electric and hybrid electric vehicle?  There are mainly 4 types converters. They are Rectifier (AC to DC), converts AC supply to DC supply Inverter (DC to AC), Converts DC supply to AC supply Regulator(AC to AC), Converts fixed AC to Variable AC i.e.,…

Que-1): Difference between Mapped and Dynamic model Maped model: It is designed by using lookup table. The data of the machine is given to lookup table so that it create the replica of the machine operation.  By using it we can analyse the behaviour of the machine  It is faster in operation Dynamic model: It…

Que-1): For EV_defaults_in file, if cargo mass is 500 kg with all other default conditions, can the vehicle travel for 45 km with FTP drive cycle? Conclude your observations.   Changing the Drivetrain config to "ev" Selecting the Load file to "EV_defaults_in" Changing th Cargo mass to 500kg Changing the Drive cycle…

DC motor speed controller using PID controller: The simulation model is diveided into 2 parts  1. The DC motor  2. PID controller 1. DC motor  By taking the given parameters as shown in fig. i.e., Jm=0.01; %Moment of Inertia in kg/m^2Bm=0.1; %Motor Viscous Friction constant N-m-sKm=0.01; % Back emf constant…

Project - Data Handling and Interpolation   code: (NOTE: I have taken the voltage and current values accoring to ohms law i.e. V=IR  and Ris taken as 5ohms. so the                           graph will be linear in nature) v = xlsread('VI.xls','A1:A22');…