intern presentation- sanjai
TRANSCRIPT
![Page 1: Intern Presentation- Sanjai](https://reader034.vdocuments.mx/reader034/viewer/2022051404/587ef8d21a28ab35528b5939/html5/thumbnails/1.jpg)
Sanjai Bashyam
Fuel Systems Specific Controls Intern
Summer 2016 Intern Presentation
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About Me University of Texas at Austin
– B.S. Electrical Engineering May 2017
Born in Cincinnati, Ohio and moved to Austin, Texas at 6 years old
Eagle Scout and 4 years of high school robotics in FIRST Robotics Competition
Founding member of UT FSAE – Electric
Co-creator of Innovation Station, a 3D Printing Vending Machine
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Terminology and Background
PIP (pre-injection processing)– 10 kHz pressure data accumulator PIP Tool – Engineering tool used to download pressure buffers for
analysis Ring Buffer – Circular buffer that holds 2000 most recent pressure
samples PIP Buffer – Sample of ring buffer prior to injection event
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Major Project
Problem– PIP Tool displays single
pump cutout events and injection events
– Unexplained offsets in pressure in between injection events
– Pressure data is only visible through PIP buffer during pump cutouts
Pressure variations
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Major Project
Objectives– Develop code and analysis script to view
continuous pressure data from ring buffer– Collect and compare pressure data between ring
buffer and PIP buffer to validate PIP buffer– Investigate 16-bit SDADC to potentially resolve
the issue
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Major Project – Data Collection
Actions– Studied PIP buffer C code to
identify relevant functions– Used portable bench to verify
functionality of data collection– Progressed to closed-loop bench
to collect real data– Forced to collect 200 elements at
a time because of software limitations imposed by Veristand
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Major Project – Data Analysis
Actions– Piece together each 200 element segment of ring buffer in
MatLAB– Plot and identify pump cutout events in ring buffer
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Major Project
Results– Software and Test team has new ability to view continuous
pressure data from ring buffer– Ring buffer’s validity will be confirmed
Future – Software and Test team may implement 16-bit SDADC
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Internship Highlights Engine Familiarization Ride and Drive White Rock Cummins Soccer Tournament
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Takeaways
Familiarity with many software and engineering tools Fuel system in diesel engines and fuel system specific controls Functionality of PPT, Software, Test, and Applied Controls teams in
FSSC Work process and workflow in FSSC Connection of control theory and coursework
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Acknowledgements
FSSC Team Tim Viola Nate Linen Rick Reisinger
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Questions?