A MATLAB code for Air Standard Cycle(otto cycle):- The otto cycle approximates the processes in petrol or diesel engines. At constant volume Heat is transferred to the working fluid. It Consists of four internally reversible processes Isentropic compression. Constant volume heat addition. Isentropic expansion. Constant…

Solving Simple Pendulum ODE Using MATLAB:- A simple pendulum having a mass m hanging from a string of length L and fixed at a point . When displaced it a little and released, the pendulum will swing back and forth and follow the periodic motion. The second order ODE use the following equation -  `d^2(theta)…

Optimise the stalagmite function and find the global maxima on MATLAB:- An area of study that deals with how to minimize or maximize a particular function that depends on multiple parameters. Genetic Algorithm:- 'Genetic Algorithm' is a random sampling, which starts from random inputs and based on those inputs evaluate…

Parsing NASA thermodynamic data File Parsing :  It is basically a process to extract useful and important information from a file and at the same time it also allows us to write something to a file. In this project we have a NASA thermodynamic data file form which  - Extract all the 14 coefficients at high and…

ADVISOR Tool   AIM: 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? In the above case, try changing the battery capacity and repeat the simulation. Perform gradeability test with PRIUS_Jpn_defaults_in file.      …

WOT Condition Part-2 Aim: Find difference between mapped and dynamic model of engine, motor and generator. To change model type  The model calculate miles per gallon. Find the factors which are considered to model fuel flow.  Run the HEV ReferenceApplication with WOT drive cycle. Change the grade and wind velocity…

Aim:  To study types of power converter circuits are employed in electric and hybrid electric vehicle. Calculate steady state of an Electric Vehicle's Drivetrain and study about dc brushless and induction motor.   Objective: Understanding the power converters in power electronics which are used in EV…

Objective: To 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.  To understand the Four-Quadrant Chopper DC Drive (DC7) block and compare it with H-bridge model. To make…

  Week-11 Challenge: Braking   Calculate the energy required for braking, for a defined driving cycle   We have taken a vehicle of 1000kg mass. For this vehicle the brake energy has to be calculated when it deaccelatate for 20 sec. to come to 0 speed from 108kmph. Traction on wheels = all Drag forces + braking…

Project-1: Powertrain for aircraft in runways There is an ongoing global drive to cut carbon and nitrogen oxide emissions. Despite the introduction of more fuel-efficient and less polluting turbofan and turboprop engines, the rapid growth of air travel in recent years has contributed to an increase in total pollution attributable…

Week 1 Understanding Different Battery Chemistry   Lithium Batteries Since the late 1980s rechargeable lithium cells have come onto the market. They offer greatly increased energy density in comparison with other rechargeable batteries, though at greatly increased cost. It is a well-established feature of the most…

Battery characteristics using drive cycle The objective of the question is to analyze the charge /discharge characteristics for a specific drive cycle. A driving cycle is a series of data points representing the speed of a vehicle versus time. Driving cycles are produced by different countries and organizations to assess…

Fuel cell powered vehicle model    A MATLAB model of fuel cell powered electric vehicle   FCEVs use a propulsion system like that of electric vehicles, where energy stored as hydrogen is converted to electricity by the fuel cell. Unlike conventional internal combustion engine vehicles, they produce no…

State of charge estimation (1) coulomb counting: - To know about the current state of charge (SOC) of a battery, it is important to know about the initial charge and charge taken out of battery. For that we use coulomb counting technique to measure the removing current and integrating together all the removed current from…

  Multi cell Battery Pack The weakest cell imposes a limit on overall operation of battery pack Because it is very important to protect an individual cell, over voltage / undervoltage limits apply to all series connected cells Due to weakest cell reaching the limit earlier than other cell, battery pack may be under-utilized.…

Thermal Management Thermal Management Techniques for Electric Car Battery Pack In both HEVs and PHEVs, the battery pack is a key component of their fuel savings potential, and the battery is also one of the most expensive components in the vehicle. One of the most significant factors impacting battery performance and life…

Mechanical design of battery pack   To make the battery pack, we have to first finalize the nominal voltage and capacity of the pack. Either it will be in term of Volt, mAh/ Ah or Wh. Total required Battery pack capacity is 18000 Wh. The individual Cell: ANR26650M1-B has   Nominal voltage = 3.3 V Current Capacity…

Week 3- 2D meshing for sheet metal Aim: Take the mid surface for the given Hood model for all the components after checking the geometrical errors and mesh the mid surface with the given element Quality criteria. Procedure:  Orient the face using Faces> Orient. Check all the geometry errors and fix them by…

Week - 4 - 2D meshing for Plastic components   Aim: To check for the geometrical errors and take the mid surface by suitable mid-surfacing techniques. To Assign PID and Thickness for all the mid surfaces. Mesh the same with given element Quality criteria, For the given Plastic Bottle Cap model. Procedure: Step…

Model 1 took around 7 hours and for Model 2 it was 4 and half. There are few unavoidable off elements present.

Week- 5 - Solid meshing   Aim: Check for the geometrical errors. Mesh the Surfaces with the given 2D element Quality criterias Use tetra elements to mesh the Volumes defined in the model and check for the quality after Volume meshing, for the given Rear view mirror component,     Avilable Quality Criteria:…

It took 4 and half hr to complete.

Creating Connections for Rear Door   Objective: To create and apply different PIDs for different components for the given Rear door FE model and perform suitable connections without assigned thickness to FE. The intention is to deploy connections. Procedure: Here we have the rear door FE model, for…

Project - 2 - Meshing on the suspension Assembly   Aim: For the given assembly we have to- Check for the geometrical errors and mesh with the given element Quality criteria. To assign the thickness for mid surfaces after meshing the component. Use tetra elements to model non-uniform thickness components. Establish…

Morphing In general, morphing is a technique for transforming an object from its current shape to a target shape. In order to design and manufacture the new products with less time and cost, the factories want to remodel based on the older products, which makes the feature-preserved morphing parameterization technology…

Project - 2D meshing on the instrumental Panel   Aim: For the given component- check for the geometrical errors and mesh with the given element Quality criteria. After meshing the component the thickness has to be assigned.   Quality Criteria: S.No  Quality Criteria  Value  1 Target/Average length  …

Week 2 Air standard Cycle Otto Cycle:- The Otto cycle is a set of processes used by spark-ignition internal combustion engines (2-stroke or 4-stroke cycles). These engines- a) Ingest a mixture of fuel and air b) Compress it c) Cause it to react thus, effectively adding heat through converting chemical energy into thermal…

Solving second order ODEs In Engineering, ODE is used to describe the transient behavior of a system. A simple example is a pendulum. The way the pendulum moves depends on Newton's second law. When this law is written down, we get a second-order Ordinary Differential Equation that describes the position of the "ball" w.r.t…

  Curve fitting What do popt and pcov mean?  popt- It helps to minimize the sum of the squared error of function data by an array of optimal values of parameters pcov- The estimated covariance of popt or in other words tells that how far the variables may change together. The diagonals provide the variance…

Data analysis Aim: The script should take column numbers as the input and plot the respective columns as separate images. Each file should be saved by the name of the column. The plot labels should be extracted from the file. If we request a plot between column 1 (crank angle) and column 8(volume), then the label information…

Photo Realistic Rendering   Objective: Write the steps involved in the Assembly of Chopper Model.  Perform rendering on the complete assembled Chopper Model.  Introduction: We create a 3D model using a 3D design approach, we design a part, from the initial sketch to the final result. From this model, we…