2021 EPAL Design
EPAL, or External Panels and Lights, encompasses the Dashboard, Cockpit Panel, the Side Panels on the exterior of the car, along with external lights stated within the rules. Below are all of the designs outlined through the use of various wiring diagrams, PCB assemblies, and inventor models.
2021 EPAL Documents:
Design Reviews: (Link)
KiCAD Download: (FrontDashKiCAD Download)
Inventor Downloads: (Side Panel Inventor Models 1/27)
Front Dash Software Block Diagram: (PDF)
1. Front Dashboard
The Front Dashboard acts as the main source of information about car for the driver. This assembly consists of a Raspberry Pi 5″ display that displays information such as the speed, battery life, and other warnings not expressed on the LED indicators. The PCB within the Front Dash encompasses the safety loop LEDs as well as fault LEDs required in the rules. These include: IMD Fault, AMS Fault, High Voltage (HV), Grounded Low Voltage (GLV), General Fault, Safety (SAFE), AIRS. The fault lights will be red to indicate an error and the safety loop lights will be green to indicate that the safety loop is operating properly. Below are the current designs for the Front Dashboard.
Dashboard PCB V1.0
1.4 Front Dash Software Design
2. Button Array
The Button Array includes the drive button, reset button, and the emergency stop button. These are wired to CarMan who can then process the inputs and apply them to the safety loop. The drive button is LED illuminated when it is pressed to indicate the car is ready to drive.
2.1 Button Array Inventor Models
Cockpit Buttons( Cockpit Buttons+Front Dash Display )
2.2 Button Array Wiring Diagram
3. Side Panels
The two side panels contain the two master switches for the operation of the car, all three reset buttons listed on the safety loop, both side mounted emergency stops, and both side mounted Safety System Okay lights. These panels are mounted in the top of the rear triangle, at the driver’s head level when seated in the car.
3.1 Side Panel Inventor Models
Right Side Panel design, placed in the full car model w/ all components and dimensions updated 2/7/21
Left Side Panel design, placed in the full car model w/ all components and dimensions updated 2/7/21
3.2 Side Panel Part Drawings
Part drawings for manufacture of side panels, updated and approved 2/11/21
Manufacturing Files used to waterjet cut the side panels, created 2/11/21
3.4 Side Panel Wiring Diagrams
Wiring Diagrams last updated Oct. 18th (?)
Visit the Dashboard Design Archive for past designs: Here