2024-10-01 Leads Meeting

Album of the Week

Philip

Announcements

Michael

• Basically nobody has filled out the Daybreak Gantt chart. It was due a week ago

  • How do you expect to be able to stay on track to get this car finished by

  • As far as I can tell there has been literally zero progress mechanically speaking

  • Some of the plan for daybreak alterations are reaching beyond the scope of what we originally agreed upon

• I want to have a karaoke party on Oct 11, 2024 to celebrate the completion of SRR. Thoughts?

• Are we taking the car to F1????

Upcoming Deadlines

Philip

• Mechanical SRR - Oct 6, 2024

• Wheels down - Dec 9, 2024 (THAT IS IN A BIT OVER TWO MONTHS)

Review Progress Since Last Meeting

(Top 5 Takeaways)

Controls

• Justification for unified vs multi psom daughters complete

• Discussion on how to make dynamometer ongoing

• Display discussion ongoing

BPS

Fanboard done

Everyone has environment setup

Power Systems

• Contactor driver board is ready to be ordered

• New members have environment setup

• Determined flaw with HV

• Resolved need for batt characterization board

Power Gen

• New members worked on starter project

• Paired up new members with mentors + assigned them general projects (will be more specific after 2nd start project this week)

• Blackbody A decoder rtd design

Data Acq

• New members set up data acq. environment

• New Members started Data Acq. Onboarding Project

• Finalized Data Acq. Leaderboard component selection

Dynamics

Can i please get next gen estimated weight and CG (from ground or axle or belly pan doesnt matter just let me know) of frame, aeroshell, battery? If any other system has this information on their components pls forward to me as well (idk maybe like the rest of the electronics/enclosures or smth). And if there is an estimate of CG from front or rear axle or relative to the entire car body from any of these systems it would be appreciated for this info as well. I have estimated values for all of these using things I have asked systems combined w their DB values but it would be bit more accurate from the systems to give to me. If possible can I get that tonight or like by tomorrow, even a rough guess is helpful - I can find our max lateral acceleration before tipping if I can get this information - then change track width or wheelbase to stabilize (some of the approximations of longitudinal CGs of all the mech systems are in a separate confluence article if anyone wants to see what I got) - also working on a reference sketch that will be more helpful once ^ inputs can guide the control arm lengths, sorry for the amt of time its taking - Kayla

• Members are goated they listen to me and value their learning from Parra’s lectures

• Communication is still a little iffy between me and the other people but giving specific pings is helping with that

•  

Body

• Good progress on brake calculations for daybreak pedalbox and revised pedal ratio for car

• Test brake pedal design in progress (for daybreak and next gen)

• Driver bounding box design pretty much completed

Aeroshell

• New members got pretty involved, feel like everyone vibed well

• Assigned research tasks to composites members

•  

Electromechanical

• Pack size/footprint finalized, might have to add a mounting extensions to modules

• Panel thicknesses + ply counts finalized

• Battery box skeleton model complete with new pack size

• v1 of enclosure quick release mount made to fit with universal enclosure

• All cooling fans selected and constraints (almost), bb intake/exhaust project set up for new members, power loss (through heat) for motor controller determined

Operations

Week and Workday Plan

Controls

• Lighting board requirements done by EOWD - Oct 5, 2024

• Pedals board being started - first draft to be completed Oct 5, 2024

• Going over regs with non comp members

• Lucy - Lighting board requirements done by EOWD - Oct 5, 2024

• Zoe - Pedals board being started - first draft to be completed Oct 5, 2024

• Maddie & Krish - on track to completing leaderboard rework, may need to combine lighting and leader to avoid issues on ground Nov 2, 2024

• Aiden - working on research project from four choices - Oct 12, 2024

BPS

everyone go bully Lakshay if peripheralSOM isn’t done by the end of the week

Going to start off the day with answering quick questions about starter project

I don’t want to work on starter project during workday so we’re going to start doing actual proejcts.

Aneri - BSP_SPI test (working test + end of workday +

Connor - Address reviews from BPS-HIL PCB

Kadhir - Gonna get his CAN test to work on a Nucleo (doing it on actual CAN chip is blocked till we order new components)

Kartik - May move him to new project with Connor on Power Gen

Nathan - ADC chip done (last week, I promise)

Power Systems

Frank & Carolyn: Get sch for Power Board done by end of week (hard deadline I hope. Comp arch coming up so )
Devin & Dylan: ESP32 Research and test board development.
Changxu & Watts: Get sch for BBPDU done by end of workday (preferably) or weekend.
Kaden & Bosa: Power Monitoring board.

Power Gen

all new members go through 2024 New Member Onboarding Guide

aarav - reading abt blackbody A & looking at existing schematics to determine each part of design

tanya - find the best way for I2C same address sensing communication + write documentation on confluence for her design choice

roy - COM port selection feature where it only shows the available COM ports

tong -

• understand how to navigate through basic functions of zemax

• figure out timeline :D and more specifics about the layout

Isaac -

• done with fan board project!

• look at new member onboarding guide

nikhil -

• look up and present a mppt algorithm of interest 

• stretch: how to put model on MCU and interact with it?

aleena -

• Figure out how to get the gate driver footprint

• Write timeline for mppt subprojectes

erika -

• done with fan board project!

• watch videos from Aleena to learn about MPPT

Data Acq

• New Members continue working on Onboarding project

• Begin leaderboard schematic

• Begin Dashboard port

• Continue Porting sim to Pychrono

Dynamics

• Figure out if we are having a lecture or not from Jacob

• To start break out into subsystem and do subsystem tasks until lunch

• Then after lunch go over their readings and then their CADs

• Do some group CAD practice

• End of workday meeting and assign tasks for the rest of the week to set ourselves up for dynamics meetings

Body

• Start preliminary designs for steering wheel

• Start design for ergo jig

• Finalize driver bounding box/driver model

• Complete pedal box jig design by Oct 12

• Finish brake calcs by Oct 12

Aeroshell

Aerodynamics:

• Keep building up solidworks knowledge, at least half the day spent teaching them how to do 3D parts, refining splines and relations(give them different parts to make on their own)

• Give them timeline for making the shell, design constraints and everything, find something they can do that helps forward the shell design w/o solidworks, maybe aerodynamics research?

Composites:

• continue research

• If frame is off then start refinishing aeroshell

• kevlar battery box layup

  • Dependent on if emech is ready for layup

Electromechanical

• Finish battery module and battery segment pcbs

• Add mounting extensions to battery modules

• Enclosure mounting, Panel fastening

• Finish black box schematic of current car in KiCad

• Finish SRR presentation

• ANSYS fluent sims

• Motor controller cooling

• daybreak nose intake revamp, exhaust tolerance tweaks

• Next gen heat pipe designs with current battery modules

Operations

New Member Project List (Include what they will be working on, how long you will give them to do it, deliverables)

Controls

• New members keep working on fan board project

  • if they finish, give them one hardware and one research/justification project

  • Eliana - Dashboard PCB. timeline will be provided in clickup later on

  • Oscar - Motor with Jiwoo, Arnav. timeline

  • Mika - Find out what is wrong with leaderboard, then put him on dashboard for new car with Akshay

BPS

BPS Leader PCB - Clark

BPS Supplemental Monitoring PCB (with a member of Power Systems) - Abigail

Contactor driver (as in software) - Phoenix

BPS Leader makefile - Michael

As per Mr. Patra, daughter boards (both PCB projects) are to be ordered by end of semester.

End of workday goal is for all of them to explain their project, and their scope to me or a veteran BPS member (or Prat or Ishan).

Power Systems

• BSP GPIO - Shaun

• Active Precharge Board - Jacob & Tony

• BPS Supplemental Monitoring PCB (with a member of BPS) - Ravi

Power Gen

• Aarav - blackbody C

• Isaac and Erika - MPPT hardware

• Nikhil - MPPT ML algo

Data Acq

• Porting Graphana Dashboard to Next.js - Adiv

• Porting Sim to Pychrono - Victoria

• IMU + RPM board Refresh - Aayush

Dynamics

• General

  • CAD practice which gets harder and harder week by week

  • Readings which include them taking notes so we can create a large culmination of knowladge (working on this by also making them take notes during lectures if they can. Encouraging them to do it by increasing their knowladge along with the future knowladge.)

• Suspension

  • changing new member projects - Daybreak centric

  • Daybreak Bearing Inserts - research on radial loads and bearing selection - select our new bearings

  • Daybreak Control Arms - CAD new ones to account for bearing inserts and groove machining (work in conjunction w ^ previous member)

  • Pushrod Manufacturing - they can lowkkk research some of the loads on pushrods, manufacture and helicoil new pushrod, maybe look into why we use those rod ends if they get bored

  • Maybe one will help steering on tie rod re-manufacturing and helicoiling

• Steering

  • Correlate ackerman angles with physical steering geometry (4 bar probably, maybe 6 bar). Onboarding project that will be used to lead into new members designing steering geometry

• Unsprung

  • Assign individual member:

  • 1 person rear swing arm

  • Sami working on Hub + Spindle design

  • 1 person working on hub and spindle separate

  • Steven + 1 person working on upright

Body

• Ergo

  • Ergo Jig - 2 weeks design 1 week manufacturing (2 ppl)

    • Validation for components like driver visibility, seat position, pedal box location, etc.

  • Daybreak Steering wheel - 1 month with design reviews, prototyping and manufacturing

  • New gen pedal box (1 semester)

  • Driver model - 2 weeks design with configuration

Aeroshell

Composites:

Push rods and control arms: Aniq, Javi, and Akhilesh
Composite Frame: Medha, Sai and Jaden
Mold Prep: Ninette, Noya and Gaya
Resin infusion: Medha and Sai

• This one is is low effort so shouldn’t be an issue. also this is joint w/ conrad and one of his subleads

Aerodynamics:

• nose(3 members, 1 sim, 1 research, 1 CAD, or all go)

• tail(same)

• canopy(same)s

Electromechanical

• Cooling

  • Daybreak BB intake - whole semester but multiple design reviews and redesigns - Tejas

  • Daybreak BB Exhaust - whole semester but multiple design reviews and redesign - Annie

  • Battery module thermal model - Tejas

• WH

  • Once EPLAN Software licenses come in

    • 1. Old Battery Wiring as a starter project

      • 3 weeks/workdays

    • 2. Start wiring parts of the car virtually

      • Should be rest of the semester

      • Will need to update as things change

• Enclosures

  • ABS Acetone Bath

    • 2 Workdays

  • Modify current enclosures

    • Redo electronic placement with new boards (eg power board)

    • Remanufacture acrylic enclosure panels

  • Implementing cold plate/cooling onto universal enclosure as a starting point

Operations