Week-11 Challenge: Braking

  Q) 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.   ans -   objective - For a 10 cell series lithium ion battery model, simulate the thermal effects and compare life…

Q)  Battery pack capacity: 18 kWh Cell: ANR26650M1-B  Prepare a detailed battery pack drawing along with its enclosure. State your assumptions. ans - Cell: ANR26650M1-B specifications  calculations are made with some assumptions    https://a123batteries.com/anr26650m1-b-lithiumwerks-nanophosphate-3-3v-2-5ah-lithium-iron-phosphate-battery/…

Q) Prepare a report summarizing thermal management techniques for electric car battery pack. ANS - thermal management techniques for electric car battery pack. and in that battery pack made of no of cell we will see lithium cell There are many types of lithium-ion battery which are named by cathode oxides andeach one has…

Q) How weakest cell limits the usable capacity of the battery pack? What is the solution? ANS  a battery pack contain no of single cell grouped and connecting all cell a pack is formed a cell is of various chemistry when we charge or discharge by load the battery pack is very imp and is one of cell is weak the…

Q) What is coulomb counting? How BMS implements coulomb counting for SOC estimation? ans - Rising crude oil prices and worldwide awareness of environmental issues have resulted in increased development of energy storage systems. The battery is one of the most attractive energy storage systems because of its high efficiency…

Q) Make a MATLAB model of fuel cell powered electric vehicle and comment on results ans - we will see MATLAB model of fuel cell powered electric vehicle first we will focus on what is fuel cell  the block used in matlab for fuel cell  Library Simscape / Electrical / Specialized Power Systems / Electric Drives…

Q) Simulate generic battery model charge discharge using UDDS data. ANS  The objective of the question can be divided into two parts where the first part is to model the battery and the second part is to analyze the charge /discharge characteristics for a specific drive cycle. A driving cycle is a series of data points…

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. Prepare a report…

Q )  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.? ans - we will see different batterys and deep dive in type of lithium ion cells  and we will see reactions of it at anode and cathode .…

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      …

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

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 the code as…

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 model.…

1.   Which types of power converter circuits are employed in electric and hybrid electric vehicle?    2.  An Electric Vehicle's Drivetrain 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…

What is the difference between mapped and dynamic model of engine, motor and generator? How can you change model type?  How does the model calculate miles per gallon? Which factors are considered to model fuel flow?  Run the HEV ReferenceApplication with WOT drive cycle. Change the grade and wind velocity in…

Use ADVISOR tool and simulate the following   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…