Crimson Racing Wiki

Driver Harness

Subteam: ChassisSubsystem: ErgonomicsAssembly: Driver HarnessesCars: CR26E

Purpose

CR26E naming for the driver restraint system.

Function

Same 6-point restraint function.

Design Process

No part-specific design process is documented. The Ergonomics subsystem design process applies: 1. Take driver body measurements and place them against the ergonomics study ranges. 2. Mold the seat insert to the driver in the car with expanding foam, then hand post-process and cover. 3. Set headrest and harness mounting to the rules and to the driver's shoulder height. 4. Run a simulator or on-track endurance stint and measure fatigue with EMG. 5. Iterate the insert shape at the identified pressure and support points.

Manufacturing Process

Designed in RapidHarness, then cut, crimped, assembled with service loops, twisted, covered in DR-25 and test fitted on the frame before boots are installed.

Full Material List

M22759 tinned copper wire with Tefzel insulation, Raychem DR-25 heat shrink, Deutsch DTM/DT connectors, RT125 epoxy, Kevlar binder.

Reoccuring issues

None recorded. This part has no entry in Knowledge_Transfer/Issue Logging/Fault Vault.xlsx, in either Issue Log.xlsx, in CR22/Issue Tracking/Shakedown 7-15-23.xlsx, or in any design review issue list found in CrimsonStorage or Box.

Still to document

Nothing in CrimsonStorage covers these yet.