Firstly, it's important to understand why a load following strategy is part of several energy management rule-based strategies. A load following strategy works by keeping in consideration the most efficient points of the respective energy storage system (whether its FC, battery, or UC), and developing an algorithm that…
Parth Maheshwari
updated on 19 Oct 2021
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Read more Projects by Parth Maheshwari (56)
Thermal Modeling of 10S1P Battery Pack
For a 10 cell series lithium ion battery model, simulate the thermal effects and compare life cycle performance at various temperatures, charge & discharge rates using MATLAB/SIMULINK All types of electric vehicles, whether BEVs, HEVs, or PHEVs, contain a battery pack that powers the vehicle. Lithium-ion batteries…
30 Mar 2022 02:25 PM IST
Parsing NASA's thermodynamic data file using MATLAB
Aim: To parse and create value out of NASA's thermodynamic data Objectives: Extract the 14 coefficients and calculate specific heat (Cp), enthalpy (H), and entropy (S) for all the species in the given data Calculate the molecular weight of each species and display it in the command window Plot the Cp, H, and S with respect…
02 Feb 2022 06:21 PM IST
Design of an Electric Vehicle - Tesla Model 3 (PMDC motor)
OBJECTIVES: Design and simulate the Tesla Model 3 Standard Range RWD that uses a PMDC motor Introduction Earth is heading for a disaster. Humanity is having a material and irreversible impact on Earth - we've destroyed half of the world's forests and will soon wipe out most of the rest. The human and economic consequences…
05 Jan 2022 09:30 PM IST
Design of an Electric Vehicle - Tesla Model 3 (PMSM motor)
OBJECTIVES: Design and simulate the Tesla Model 3 Standard Range RWD that uses a PMSM motor I've previously designed a Tesla Model 3 using a PMDC motor (here), even though in actuality the Tesla Model 3 uses an Interior Permanent Magnet Synchronous Motor (IPMSM). The fact that a PMDC motor and its control works…
05 Jan 2022 09:30 PM IST
Design and Modelling of an E-Rickshaw
OBJECTIVES: Design and simulate an E-rickshaw in MATLAB/SIMULINK For any three standard driving cycles show energy consumption, temperature rise of motor & motor controller Run the vehicle at constant speed of 45 kmph for 100km (Wide Open Throttle) and analyse results INTRODUCTION: Conventional,…
05 Jan 2022 09:30 PM IST
Design and Modelling of a Fuel Cell Hybrid Electric Vehicle (3 propulsion sources)
OBJECTIVES: Design, model, and simulate an entire Fuel Cell Hybrid Electric Vehicle powered by a Fuel Cell, Battery, and Ultracapacitor INTRODUCTION: Why are FCHEVs on the rise? The two biggest problems with BEVs are driving range and charging time. FCHEVs are similar to ICE cars when their driving range and charging…
03 Jan 2022 01:14 PM IST
Design of an Electric Powertrain for Aircraft Towing application
OBJECTIVES: Design and simulate an electric powertrain capable of towing a Boeing 737 Understand aircraft towing procedures and the reasons behind them Learn about aircraft takeoff and other ground procedures to manuever the plane 1) Calculate the force and power required by a towing vehicle to push/pull an…
03 Dec 2021 08:02 PM IST
Rule-based energy management strategy: Load following
Firstly, it's important to understand why a load following strategy is part of several energy management rule-based strategies. A load following strategy works by keeping in consideration the most efficient points of the respective energy storage system (whether its FC, battery, or UC), and developing an algorithm that…
19 Oct 2021 07:59 PM IST
Well to pump (WTP) & Well to wheel (WTW) analysis via GREET software
Question 1: Well to pump CO2 emissions for various forms of hydrogen production. In the form of a table specify the various emissions in the hydrogen production. Consider the following pathways. Using Natural gas Using nuclear energy Using Coal Using solar energy CONCLUSION: For fewer…
09 Oct 2021 07:59 PM IST
Energy management system (EMS)
Energy distribution flowchart: Preferred mode of operation: Low power demand; constant cruising speed (on a highway for instance) - use battery (power demand between 0 and 23kW) Medium power demand - use fuel cell (power demand between 23kW and 55kW) High power demand; during transient conditions - use ultracapacitor…
08 Oct 2021 07:14 PM IST
Types of energy sources
Question 1:Compare four different types of fuel cells and state their applications. Type of FC Adv Disadv Operating temp, Stack size, Efficiency Applications Proton Exchange Membrane (PEMFC) Solid electrolyte - eliminating possibility of corrosion, no replishment needed due to it being solid Works well at low temperatures…
30 Sep 2021 05:28 AM IST
Ultracapacitor modelling
Modelling an UC requires equations that make up the parameters of a UC: `V_(UC)=V_(max)*SOC-IR_(losses)` `OCV=intI/Cdt` Charge `Q=C*V_(max)` `SOC_(UC)=SOC_(nom)-int(I_(UC)*eta_c)/Qdt` where; `eta_c` = coulombic efficiency…
24 Sep 2021 11:08 AM IST
Gear shift mechanism (Simulink & Stateflow)
Question 1: Explain automatic transmission system through a simplified block diagram. The torque converter is what transmits the torque from the engine to a rotating driven load. In an automatic transmission car, the torque converter connects the power source to the…
14 Sep 2021 12:39 PM IST
Driver & Vehicle model
Overall model: Driver subsystem block: Resistance forces subsystem block: Vehicle model subsystem block:
10 Sep 2021 06:14 PM IST
Battery and Ultracapacitor
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. If its a pure BEV, then there is no choice but for the battery to be the power generator during…
06 Sep 2021 03:57 PM IST
Nernst's Equation & Polarization curve
Question: Define Nernst equation for fuel cell and then define what parameters affect the reaction in a fuel cell in what way. Nernst's equation for fuel cells: `E_(cell)=E^0+(RT)/(nF)*ln((prod_(r))/(prod_p))` where; `E_(cell)` = cell potential `E^0` = standard cell potential R = universal gas constant T =…
05 Sep 2021 06:28 PM IST
Components & Properties of the Fuel Cell
Question 1:Name the components of a fuel cell 1 to 5 in this diagram. 1. Current collector 2. Bipolar plate 3. Gas diffusion layer 4. Electrode: Anode/Cathode 5. Proton Exchange Membrane Question 2:Oxygen is an important medium for the conduction of ions across…
31 Aug 2021 05:29 PM IST
Development of FCEVs
Question 1:What were the first models of fuel cell vehicles developed in Asia, Europe and North America? What were the specifications of these vehicles? Compare them to the specifications of the current model. Region Name of FCEV Range Top speed FC output Asia Toyota FCHV - 2002 300km 155kmph 90kW Europe…
26 Aug 2021 06:10 PM IST
Thermal Management
1) Differentiate between the embedded C programming and model based system approaches. 2) Draw a high-level schematic of a remote controller toy car system. Explain the working principle of the toy car system. What are the differences between a remote control toy car and an actual electric vehicle? State its…
16 Jul 2021 11:36 AM IST
Power Converters
1. a.) Why doesn't the MATLAB PID auto tuner work for a power converter? Show step wise process for a buck-boost converter circuit. PID autotuner needs a linear model to design a PID controller. To get this linear model, when we press the "tune" button, it automatically linearizes a Simulink model using…
09 Jul 2021 12:33 PM IST
Analog Control Systems
1. Answer the following: a.) Compare analog control system with digital one with respect to electric vehicle motor. Analog deals, processes, and outputs continuous signals in a certain range. It is always progressively changing, whereas digital uses binary language for all sorts…
03 Jul 2021 09:20 AM IST
PID Controllers
1) In which situations feedforward control of DC motor fails? Prepare a MATLAB script for feedforward control and test it. DC Motor control design: Both electrical and mechanical components are represents here, with the DC motor modelling constants as: `T=K_mI_a` `V_(emf)=K_bomega` The torque T(t)…
23 Jun 2021 10:49 AM IST
DC-DC Converter
1a) Explain the following terms and note down their mathematical formulae. Rise time: time it takes for the response to rise from 10% to 90% of the steady-state response Settling time: the time taken for the signal to be bounded to within a tolerance of 2-5% of the steady state value Peak overshoot:…
21 Jun 2021 11:25 AM IST
Bode Plots and Step Response
1a) List all the MATLAB commands related to transfer function, pole-zero-gain and step response. Function Command tf create a transfer function in polynomial form zpk create a transfer function in zero-pole-gain (factorised) form filt create a transfer function in digital signal processing (DSP) convention …
03 Jun 2021 10:04 AM IST
Transfer Function
1) How hybrid electric cars can be operated more efficiently by autonomous driving systems? Hybrid cars are powered by both an ICE and a battery in most cases. There are also hybrid vehicles that operate with fuel cell + battery. Which system to use when is very important to maximize MPG, and control…
28 May 2021 07:28 AM IST
Recent trends in the EV industry
Compare the battery capacity and related performance of any three recent BEVs Model Battery capacity (kWh) Curb weight (kg) Torque (Nm) Horsepower (hp) EPA Range (km) 0-60mph (sec) Top speed (kmph) 2021 Audi e-tron 95 2615 561.3 355 357 5.5 200 2021 BMW i3 42.2 1348 269.8 181 246 7.2 150 2021 Chevrolet Bolt EV 66…
09 May 2021 12:17 PM IST
Thermal Management of Battery
OBJECTIVES: Explore the effect of increasing battery temperature on SOC Learn about thermal management techniques for an electric car battery pack 1) Create a simple simscape model with a battery and show the temperature dependance in the performance. Also connect a resistor load of 10 Ohm and compare the resultants…
07 May 2021 06:50 PM IST
Multi-cell Battery Pack
Q) How does the weakest cell limit the usable capacity of the entire battery pack? What is the solution? The 'weakest cell' is defined as the cell which limits the entire operation of the battery pack. It is the decider of how much the battery pack can be charged or discharged, and whether or not its maximum potential…
02 May 2021 04:42 PM IST
State of charge estimation
1) What is coulomb counting? Explain how BMS implements coulomb counting for SOC estimation Coulomb counting SOC is a measure of how much charge is available for use in the battery. For the application of rechargeable batteries in H/EVs, SOC is a crucial parameter and thus needs to be measured accurately though…
30 Apr 2021 07:07 PM IST
Modelling of Battery Pack
OBJECTIVES: Build a battery pack with 3S4P configuration Simulate the model and comment on the results for SOC, voltage, and current Change the configuration to 4S3P and simulate the model Compare the results for both models Battery configuration: The lithium-ion datasheet used for this project is: https://www.ineltro.ch/media/downloads/SAAItem/45/45958/36e3e7f3-2049-4adb-a2a7-79c654d92915.pdf…
24 Apr 2021 06:14 AM IST
Fuel cell powered model
OBJECTIVES: Explain the working priniciple of a fuel cell model Simulate the built-in model '6 kW 45 Vdc Fuel Cell Stack' and explain the results Explain the voltage and current characteristics in the resultant graph What is a fuel cell (FC) and how does it work? A FC is an electrochemical…
20 Apr 2021 05:14 PM IST
Configuration and Characteristics of Lithium-ion Battery Model
OBJECTIVES: Configure the generic battery model in MATLAB from the datasheet of a lithium ion battery Simulate generic battery model charge discharge using UDDS data The lithium-ion datasheet used for this project is: https://www.ineltro.ch/media/downloads/SAAItem/45/45958/36e3e7f3-2049-4adb-a2a7-79c654d92915.pdf…
12 Apr 2021 12:20 PM IST
Mathematical Model of a Lead Acid Battery
OBJECTIVES: To understand the chemistry and working principle of a lead acid cell/battery Examine the charge and discharge curves of a lead acid battery Write code to plot those curves Introduction: Lead acid batteries provide the best value for power and energy per kilowatt-hour Have the longest life cycle Large…
07 Apr 2021 07:29 PM IST
Specifications of a Lithium-Ion Cell
A lithium ion cell datasheet was chosen to answer the following: https://www.ineltro.ch/media/downloads/SAAItem/45/45958/36e3e7f3-2049-4adb-a2a7-79c654d92915.pdf 1) What is the difference between nominal voltage and maximum voltage? Nominal voltage - the voltage for which the circuit-breaker is designed…
30 Mar 2021 08:07 AM IST
Understanding Different Battery Chemistry
Type of Li-ion cell Anode Cathode Chemical reaction Suitable applications Lithium Cobalt Oxide - LiCoO2 (LCO) Graphite carbon Cobalt oxide Anode: LiC6 ↔ C6 + Li+ + e- Cathode: CoO2 + Li+ + e- ↔ LiCoO2 Mobile phones, tablets, laptops, cameras Lithium Manganese Oxide - LiMn2O4 (LMO) Graphite carbon Lithium…
23 Mar 2021 05:17 PM IST
Braking of Electric Motors
1) For a defined driving cycle, calculate the energy required for braking. The energy required for braking would be the same energy required for acceleration. Suppose the car accelerates to a certain speed; to bring that speed down to zero by hitting the brakes would be referred to as braking energy. Therefore,…
22 Feb 2021 07:53 PM IST
Duty Cycle
1) Why power electronics circuits are efficient? In practice, which types of losses occur in power electronics circuits? What is power electronics? An application of electronics and circuitry that deals with the control and conversion of electrical power from one form to another. They function with the help of power…
20 Feb 2021 05:45 PM IST
Induction Motor Characteristics II
1) Discuss about the equivalent circuit network of induction motor MATLAB model. Working principle: An induction motor (IM) consists of a stationary component called a stator and a rotary component called the rotor. The stator consists of three coil windings to which 3-phase AC…
12 Feb 2021 01:28 PM IST
Wide-Open Throttle (WOT) Condition I
1) What is the ratio of hill-climbing power required by fully loaded tata ultra truck to the half-loaded one? The following data is for TATA ULTRA-1014: Fully loaded truck would be 10,400kg, whereas half-loaded would be 3400 + 7000/2 = 6900kg Since hill-climbing power is simply calculated by P = mgvsin`theta`,…
10 Feb 2021 10:28 AM IST
Induction Motor Characteristics I
1) How is the induction motor operation similar to the clutch? Clutch operation Induction Motor operation Mechanical device that engages and disengages power transmission between driving and driven shaft Driving shaft is attached to the motor while the driven shaft produces the output power to move the wheels…
10 Feb 2021 10:28 AM IST
DC Motor Control
OBJECTIVES: Understanding the difference between 4 quadrant DC drives and H-bridge DC drives Constructing the inputs needed to run a 4 quadrant chopper and analysing the output 1) Run MATLAB demo ‘Speed control of a DC motor using BJT H-bridge’. Modify the model such that armature current doesn’t…
03 Feb 2021 06:18 PM IST
EV Drivetrain
1) Which types of power converter circuits are employed in electric and hybrid electric vehicles? Type of power converter Description DC - AC converter (Inverter) DC power from the battery to AC power used in an EV induction motor. The inverter can change the speed at which the motor rotates by varying the frequency of…
21 Jan 2021 06:11 PM IST
DC Machine Characteristics
1) Implement DC machine torque speed characteristics equations in MATLAB script file. It asks user to input data and plots speed (RPM) versus torque (Nm). A DC machine is an electromechanical alternation device, and it consists of a DC motor and a DC generator A DC motor converts electrical DC power from a voltage/battery/power…
16 Jan 2021 07:42 PM IST
Simulation using ADVISOR Tool
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. EV_defaults_in file was loaded Cargo mass set as 500kg All other parameters/conditions unchanged FTP Drive Cycle Original distance…
03 Jan 2021 03:18 PM IST
Forces Acting on a Vehicle
1a) What should be the maximum speed of the motor used in an electric scooter capable to run at 90 kmph, if the fixed gear ratio is 7 and tire size is 90/100 R10 53J? Assume the following arrangement from motor to wheel: From 90/100 R10 53J, it is deducible that the wheel diameter…
19 Dec 2020 09:02 AM IST
BAJA All-Terrain Vehicle (ATV) model simulation using SIMULINK
Aim: To carry out a system-level simulation of a BAJA ATV Objectives: Analyse all components and understand the relation and flow between the blocks Understand the different types of ways to model this BAJA ATV An ATV is a small motor vehicle with three or four low-pressure tires designed for use on various types…
04 Dec 2020 05:36 PM IST
Control logic of a Washing Machine and Gear Shift mechanism using Stateflow in SIMULINK
Objectives: Implementing the control logic of a washing machine using Stateflow Implementing the control logic of gear shift mechanism using Stateflow Introduction: Stateflow can be best explained as a graphical representation of a machine consisting of states, transitions, and conditions. A stateflow chart can…
24 Nov 2020 05:40 PM IST
Using SIMULINK with script and workspace
Objectives: Given an array of force and distance, determine the work done using SIMULINK Use MATLAB and SIMULINK together to implement an equation Studying the behaviour of 'Mass-Spring-Damper in Simulink and Simscape’ model #Objective A: Building the above coordinates using a signal builder: …
17 Nov 2020 03:44 PM IST
Electric doorbell and Thermistor-based automatic fan using SIMULINK
Aim: Modeling a solenoid operated doorbell Modeling a thermistor operated automatic fan Objectives: Simulating a situation where the circuit switch is closed for 2 seconds and then released to observe the physical movement of the solenoid plunger hitting the doorbell Simulating a situation where a thermistor is used to…
09 Nov 2020 08:48 AM IST
Basic function modeling and analysis of 'Suspension System Comparison' model using SIMULINK
Objectives: Plotting a function using Simulink blocks Analysis of a simulink model #Objective A: The function to be plotted is: `y(x) = (x-1)(x-3)^2(x-9)^2` Graphical result: #Objective B: Analysis of 'Suspension System Comparison' Theory and Background: …
29 Oct 2020 08:14 PM IST
Optimizing the Stalagmite function through Genetic Algorithm using MATLAB
Aim: Finding the global maxima of the stalagmite function through optimization Objectives: Introduce the concept of genetic algorithm Showcasing the process of optimization through three progressive studies Plotting graphs to demonstrate the results Theory: Genetic algorithm is a search-based optimization technique based…
23 Sep 2020 01:33 PM IST
Curve Fitting and Data Prediction using MATLAB
Aim: Write a program to perform curve fitting of linear and cubic polynomials given a large data set. Objectives: Plot linear and cubic fit curves along with the original data points Use splitwise method to see comparison of curve fitting with and without the method Calculate the error between original data and curve fit…
11 Sep 2020 02:55 PM IST
Solving Second Order ODEs: Simple Pendulum using MATLAB
Aim: To construct, solve, and simulate a simple pendulum with damping Objective: Write the code to solve an ODE that represents the motion of a pendulum Plot displacement and angular velocity with respect to time Create an animation of the simulation Introduction: ODEs are used to describe the transient behaviour of engineering…
04 Sep 2020 05:25 PM IST
Air Standard Otto Cycle: Piston Kinematics using MATLAB
Aim: To construct and analyze an Otto Cycle Objectives: Plot a Pressure-Volume graph Calculate the thermal efficiency of the cycle Introduction: An Otto Cycle is a thermodynamic cycle that represents the functioning of Spark Ignition (SI) internal combustion engines. The ideal cycle approximates the processes of SI engines…
29 Aug 2020 11:29 AM IST
2R Robotic Arm Simulation using MATLAB
Aim: To simulate the forward kinematics of a 2R Robotic Arm using MATLAB Objective: To write the code in MATLAB to simulate the forward kinematics of a 2R Robotic Arm Create an animation file of the plot Description: Forward kinematics is the use of kinematic equations to control the position of the end-effector,…
29 Aug 2020 07:17 AM IST