Crimson Racing Wiki

Indicator Light

Subteam: ElectricalSubsystem: Custom ElectronicsAssembly: Dash Panel AssemblyCars: CR21, CR22, CR25, CR26E

Purpose

Signals a vehicle state to the driver or to marshals.

Function

On the IC cars this is a dash-mounted status light. On CR26E the indicator function is split across the tractive system status indicator, voltage indicator and ready-to-move light.

Design Process

No part-specific design process is documented. The Custom Electronics subsystem design process applies: 1. Collect the sensor list from every subteam, agree location and type with the designer who needs the data. 2. Split sensors between ECU and dash based on which parameters are engine-critical. 3. Size the charging system and validate it. A custom current measurement board (50 A bidirectional sensing chip, inline on the rectifier-to-PDM wire) measured what the rectifier actually puts back. 4. Build the datalogging parameter list with rates, then check CAN bus load. 5. Validate on a mock endurance: average battery voltage 13.4 V, minimum 12.1 V excluding cranking on CR26I.

Manufacturing Process

Board manufactured externally, populated and bench tested in house before it goes on the car.

Full Material List

Custom PCB with a machined or 3D printed enclosure.

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.