Announcements

• The team from McLaren Applied, Oliver Marler and Richard Hull, will be hosting a webinar on February 18, 2025 at noon EST

• This session will cover McLaren Applied’s products with a special emphasis on their ATLAS telemetry acquisition system

• The webinar will be held on Microsoft Teams - the connection information is here.  Meeting ID: 321 282 503 377 and Passcode: at63FU7C

• Teams that are interested in competing in the Wheel-to-Wheel sim racing event hosted by iRacing and McLaren  Applied should register here so that you can access the required iRacing car and track licenses. Racing is scheduled for March 29, 2025 starting at 11am EDT. 

• Contact:
   
  • The Support      Center: https://formulahybridelectric.supportsystem.com/
   
  • The Upload      Center: https://formulahybridupload.supportsystem.com/
   
  • Email:       Formula.Hybrid@dartmouth.edu

Please let us know if your team members would like to receive these updates. 

For your reference you can find the event schedule for the 2025 competition, here.

The rules have been updated to correct an error in Figure 37. Please see the updated rules, here.

For those who were unable to attend, you can watch the video of our recent webinar with former Ferrari Engineer, Rob Smedley, here.

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Hello Teams,

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The updated Design Specification Sheet is available here.

Hello Teams, we are sharing an electrical safety video and all teams must watch it and implement the necessary procedures.

SOLIDSTATE SWITCHES AND LOGIC IN THE SAFETY LOOP

·      FH+E 2025 rules presently require mechanical latching relays for IMD and BMS faults.
"EV7.1.1 (9): Both IMD and AMS must use mechanical latching means as described in Appendix G."

·      However, the new FSAE-2025 rules are more lenient, but still require "When the BMS, IMD or BSPD Open the Shutdown Circuit:  … a. The Tractive System must stay disabled until manually reset".   Relay logic is not required.

·      In order to harmonize with FSAE this year, FH+E will allow solid-state devices such as SSRs and FETs in the safety loop, and also allow digital logic to be used for the latching function.

·      We need to ensure that IMD and AMS trips are reliable and latched as they are the fundamental safety checks for participating vehicles. We also need a way to review the latching function. Thus, for 2025, we are not allowing software latching.

·      This limitation is the same as FSAE who clarified: “We allow digital circuits in the shutdown circuit like discrete logic latches, and semiconductors to switch the shutdown circuit current for the AMS, IMD and BSPD.  We do not allow software.”

·      The trip and latching functions will be tested during tech testing. We may also perform spot checks at other times(including the rain test).

·      IMD trips are easily tested using the TSMP connection. Make sure that you have a clear and simple way of testing AMS faults – and document it in your ESF2.

·      If you planned to use software for latching IMD and AMS faults, we suggest that you first seek clarification and approval from FSAE. Then we may be open to variances based on their response.

Rob Wills

Chief of Electrical Tech Inspection

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Please follow the following hyperlinks for the SES and the ESF-1 results to view the .pdf files.

Due to a change in formatting of our end of competition program guide, team photo formatting has been dropped. A single group photo is now all that is needed.

Be advised that a correction has been made to Figure 37 from section EV7.1. Please refer to this updated version.