Brake Fluid

Subteam: SuspensionSubsystem: BrakesAssembly: Brake Lines and FluidCars: CR21, CR22, CR25, CR26I

Purpose

Transmit pressure from the master cylinders to the calipers without compressing or boiling.

Function

Motul RBF 660. Boiling point matters because vapour in the line is compressible, which is what causes a long or fading pedal after repeated hard braking.

Design Process

Motul RBF 660 raised the dry boiling point 60 C (265 to 325 C) and the wet boiling point 49 C (155 to 204 C) against the previous fluid.

Full Material List

Motul RBF 660.

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.

Design Constraints — What held back the design whether it be location, time, materials etc
Analysis — How you get quantitative, predictive information on the part
Manufacturing Process — How it is assembled in detail from start to finish
Improvements — Improvements for this generation
Properties — Size, weight, mass, charge, thermal properties, anything else relevant