Week-11 Challenge: Braking

Final Project - Modelling an Electric Vehicle with a Lithium-Ion Battery   Aim: To create a SIMULINK model of an electric vehicle (EV) that is powered by a lithium-ion battery with speed control implementation using a PID controller.   Theory: Electric Vehicles (EVs) are vehicles that are powered by electrical…

AIM: For a 10 cell series lithium ion battery model, to simulate the thermal effects and compare life cycle performance at various temperatures, charge & discharge rates using MATLAB.   THEORY: A lithium-ion (Li-ion) battery is an advanced battery technology that uses lithium ions as a key component of its electrochemistry.…

Objective: A)To run three test cases from harness dashboard of closed loop BMS control. B)To explain coulomb counting for finding the SOC estimation in BMS.    The model file opens as, Blocks in model: 1)Dash board Test Sequence Varient(Selector). Manual Varient(Selector). BMS_Testsequence state request(Subsystem) to provide…

AIM - 1.Prepare a table which includes materials & chemical reactions occurring at the anode and cathode of LCO, LMO, NCA, NMC, LFP and LTO type of lithium ion cells.Give your detailed explanation on it 2.Compare the differences between each type of Li+ion batteries based on their characteristics   1.Prepare a…

Aim: Create a MATLAB model of electric car which uses a battery and a DC motor. Choose suitable blocks from Powertrain block set. Prepare a report about your model including following: Objectives:         1. System level configurations        2. Model parameters    …

AIM : Part A: 1. Search and list out the total weight of various types of aircrafts.  2. Is there any difference between ground speed and air speed? 3. Why is it not recommended to use aircraft engine power to move it on the ground at Airport?  4. How an aircraft is pushed to runway when its ready to take off?…

AIM : For a defined driving cycle, calculate the energy required for braking. Why electric motor can’t develop braking torque at high speed similar to starting? How electric and mechanical brakes are coordinated?  Make a MATLAB program which plots contour of given motor speed, torque and efficiency values. Attach…

AIM : Run MATLAB demo ‘Speed control of a DC motor using BJT H-bridge’. Modify the model such that armature current doesn’t shoot up when motor changes direction from forward to reverse.  Refer to help section of ‘The Four-Quadrant Chopper DC Drive (DC7) block’. Compare it with H-bridge…

AIM : To understand the difference between mapped and dynamic model of engine, motor and generator. Fuel Economy - Miles per gallon and its calculation. Run the HEV ReferenceApplication with WOT drive cycle. Change the grade and wind velocity in the environment block and compare the results. To compare the simulated results…

AIM - 1. To find types of power converter circuits are employed in electric and hybrid electric vehicle. 2.  An Electric Vehicle's powertrain with 72V battery pack in shown in the diagram below. The duty ratio for acceleration operation is 'd1' and for the braking operation the duty ratio is 'd2'. The other parameters…

AIM - 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.  2.   In the above case, try changing the battery capacity and repeat the simulation.  3.   Perform gradeability…

Aim - - Write a function that extracts the 14 co-efficients and calculates the enthalpy, entropy and specific heat of all the specices given in the data file. - Calculate the molecular weight of each species and display it in command window. - Plot the specific heat, enthalpy and entropy for each species corresponding…

Aim  - To Optimize the stalagmite function to find global maxima using genetic algorithm. Theory -   Genetic Algorithm (GA) is a search-based optimization technique based on the principles of Genetics and Natural Selection. It is frequently used to find optimal or near-optimal solutions to difficult…

Aim - To Solve the ODE for the Simple Harmoic motion of a simple  pendulum and create an animation of motion of pendulum   Inputs -  lenght of string =  l =1m mass of pendulum = m = 1kg damping coefficient = b = 0.05 gravity = g = 9.81 m/s^2   Theory - A simple pendulum consists of a point mass…