2024-11-05 Leads Meeting

Operations

• Ops here

Chief Engineer

• Sent the Mechanical email to Bill and Brian

  • Mech leads please draft up responses to anything you want to respond to

• I have created NextGen PVDR, VDR, Battery, BPS, and Array Technical Documents in Sharepoint. As soon as we are able to submit these forms, we should do so.

  • I want Mechanical to submit PVDR as soon as possible after PDR, so as you make decisions I think it would be best to slowly fill in PVDR

• I’ve been noticing lately that workday attendance isn’t the greatest. A pretty sizable portion of people are missing every workday which concerns me, especially when as we start to approach major deadlines. What do y’all think we can do to help fix this problem?

• Emech reorg: what do we want to do?

• Ishan, Jason, Advait, and I worked on the array calculations. They are pushed in the GitHub under the “Vehicle Model” repository. Though our model was probably not accurate, the general conclusion we came to was that the added weight of increasing the area of the topshell

Controls:

Updates

• Selected brake pedal sensor

• Order placed for display, cameras, all the auxiliary stuff

Week Plan

• Mika working on dash component footprints

• Lucy working on schematic draft done by Friday

• Maddie and Krish addressing last of review comments on schematic

Upcoming Deadlines

BPS:

Updates

• Good progress on boards

  • Abby and Clark got a semi-reviewable schematic of their boards done

• Nathan picked his chips for Amperes

Week Plan

• Nathan, Clark, Abby, and Michael will address their reviews

• (assuming no nucleo shenanigans) Phoenix will start working with FreeRTOS stuff

• Aneri will fix her SPI header and get regular SPI on a logic analyzer

• Kadhir will get his ideas down for usb-c PD test board and have some of his chips picked out

Upcoming Deadlines

Power Generation:

Updates

• blackbody C car location planning

• i2c architecture

• kicad for blackbody c

• constant current boards

• more mppt schematics review, ready for second round review

• tong’s solar simulator schematics reviewed, continuing dev. selected LED. may be buying a new power supply.

Week Plan

• finish 2nd round MPPT sensors schematics review

• decide on i2c architecture

Upcoming Deadlines

Data Acquisition:

Updates

• Victoria & Amanda: Worked on reward function. Working on integrating a generic array + battery.

• Aayush: Working on rf receiver board

• Adiv: Working on IMU + wheel rpm board

• Matthew: Continued work on Leaderboard

Week Plan

• Move one foot in front of the other!

Upcoming Deadlines

Power Systems:

Updates

• Frank & Carolyn: Power Board sch reviewed and approved. Layout started.

• Ravi: Environment board and breakout board layout reviewed. Starting on firmware.

• Shaun: I2C BSP working on CubeIDE. Working on moving libraries over to LHR embedded environment.

• Jacob & Tony: looked into potential software approach to active precharge and got layout reviewed. Working on changes.

• Watts & Changxu: working on eFuse testboard. Sch complete and layout almost complete.

Week Plan

• Get power board layout done by EOW.

• Order environment board (and breakout).

• Go up to pickle (on friday possibly) and fix Daybreak’s wiring (with wire harnessing subsystem and maybe some power systems kids)

Upcoming Deadlines

Electromechanical:

Updates

• 2 Battery Layups Done

• Acetone enclosure ready to manufacture

• Locks redone - adding some nice to have features

• Good progress on daybreak bb intake/exhaust

• Battery Box airflow cutouts on front/back panels made

• Universal enclosure with mounting and gasket printed and works with latch mechanism

  • will try to print with abs and put it into acetone enclosure

Week Plan

• Try to rewire as much of daybreak as possible and get all critical hardware inside

• Add structural brackets back into the old battery

• Start cell characterization and sample module manufacturing

• Starting new HV Dist enclosure design

• Design review of projects (cooling)

Upcoming Deadlines

Body:

Updates

• Driver measuring happening this weekend

• 1st frame iteration set to finish Saturday → sims soon

• Composite research/knowledge base progressing

Week Plan

Frame

• Compile next steps for composites research

• Ansys learning → start in week, formally happening this/next workday

• Keep working on 1st iteration

Ergo

• Pedal jig testing (pedal ratio, tolerance testing, etc)

• Begin steering wheel research → design plan soon

Upcoming Deadlines

Dynamics:

Updates

• Unsprung - Worked on solving loads on the hub axle

• Suspension - Each member was given a part of suspension to look further into

• Steering - Created a decision matrix for steering racks and upper steering architecture

Week Plan

• Unsprung:

  • Finalize brakes, and rotor configuration

  • Caliper and motor mount for Swingarm

  • Choose Bearings

  • Finalize hub size for horizontal stackup

• Steering:

  • Bump Steer design optimization

  • Talk to Jacob on how to fix his code. Try to look through the actual math to see if there is an error going on there

• Suspension:

  • Have an understanding on how to solve for forces in components – control arms, pushrods, bell crank

Something I’m trying this week

• New structure of dynamics meeting where members post their updates with a photo. Allows everyone to learn a little bit more about the other subsystems along with progress photos. It also allows for them to have smth to put on their portfolio. I want thoughts on this

• Sleeping maybe? Have not been hitting this deadline

What I need from other systems

• For one person who is going to pickle. I would like to find the amount the steering rack moves for 360 degrees of rotation of the steering wheel. To do this, I need someone to mark the steering rack (something that will rotate from the steering) and something that is static with the steering rack. Can explain better in person.

• Can someone who has access to add people to Github add Sohan Kureti to solar Github?

Upcoming Deadlines

Aeroshell:

Updates

• Aerodynamics - Proposed more designs for CAD, people got deeper into their designs and concepts. Continued work on aeroshell CAD

• Composites - Did battery box layup

• Washed the metal sheet (new one bc somehow the old one got scratched)

• Open

  

Week Plan

• Aerodynamics - First half Matthew will teach ANSYS to everyone

• Nose, Tail, Canopy, and Wheel Covers will sim designs they have previously cadded

• Canopy hinge and shell to shell will CAD the designs that they have mentioned to us

• Composites

  • Finish battery box layup

  • Do first test composite panel layup w/ aluminum honeycomb?!?

  • sand the metal sheet some more. also bondo the metal sheet

  • will work on designing test fixtures for composite panels

  • figure out what tests we want to do on small scale for resin infusion so that we can start doing larger scale tests

Upcoming Deadlines