Controls Lighting Board Requirements (●ˇ∀ˇ●)

Lights

We will have five peripheral boards for lights in total.

Location:

• Front (headlights + front turn signals combined)

  • Color: headlights are white, turn signals are amber (?)

• Side left (side exterior turn signal)

  • Color: amber

• Side right (side exterior turn signal)

  • Color: amber

• Back (exterior back brakelights + back turn signals combined)

  • Color: red

• Canopy (brakelight)

  • Color: red

Electrical Diagram with general placement of lights

Open

Camera Wiring Design Options (Canopy)

Controls must decide how we want to power the backup camera and 2 blind spot cameras, as well as how to send camera information to show on the display.

Three options:

• Power through ethernet

• Power through USB

• Power through peripheral board very unlikely option

More detailed comparisons here

	Power through ethernet	Power through USB	Power through peripheral SOM

	Power through ethernet	Power through USB	Power through peripheral SOM
How it works	Ethernet will allow us to send data and power the cameras at the same time Information travels from camera(s) to a network switch, which connects to raspberry pi, which connects to display Network switch is essentially a mux that can choose which camera’s stream information to send network switch can be purchased	Active USB cables going to a USB hub Can make our own USB hub 5v 1amp or 5v 2amp USB 170degree backup cam if we don’t use blindspot	Add power breakouts to peripheral board to supply power to cameras Send information through CAN?
(scuffed) general diagram	Open (general wiring, probably not what it would look like in the car)
Pros and cons	Simplicity Keeps peripheral SOM simple Possibly easier for wire harnessing

🤯Decision

1. We plan to use a USB connection.

Final Camera Decision and Justification

Combining Left/Right Lighting boards

There are lights (internal and external) on the left and right side of the car, in both the front and the back. Controls must decide if we should have four boards for front left, front right, back left, and back right, or just two for front left/right and back left/right

🤯Decision

1. Yes, we will combine them.

Justification:

• Overall wire length is similar (Four wires - only difference is CAN vs GPIO)

  • GPIO would likely by 12V and therefore will not suffer a large voltage drop while crossing the width of the car

• Added capabilities aren’t complex

FSGP Regs

9.4 Lighting

All lights required in this regulation shall be at least as bright as the reference standard defined below from 30 m away throughout the required viewing angles as defined below. Inspection for the viewing angles and light intensity can be conducted at any point within the defined distance and view angles. All positions are to the center of the light emitting portion of the light.

9.4.A Daytime Running Lights

9.4.A.1 Position: shall be located at least 600 mm apart (at least 400 mm apart if the car is less than 1300 mm wide), at least 250 mm above the ground, and at a distance no further back than 200 mm from the absolute front of the vehicle.

9.4.A.2 Color: white

9.4.A.3 Viewing Angle: 10° upwards, 10° downwards, 20 ° outwards, and 20° inwards

9.4.A.4 Operation: The Daytime Running Lights shall operate whenever driving is possible (motor power is enabled). It is permissible to disable the running light while the co-located front turn indicator is in operation. The turn indicator has the priority in operation.

9.4.B Front Turn Indicators

9.4.B.1 Position: shall be located at least 600 mm apart (at least 400 mm apart if the car is less than 1300 mm wide), at least 350 mm above the ground, and at a distance no further back than 175 mm from the absolute front of the vehicle.

9.4.B.2 Shall flash between 60 and 120 pulses per minute

9.4.B.3 Color: amber

9.4.B.4 Viewing Angle: 80° from center in outwards, 45° from center in inwards (see Figure 1), 5° down, and 15° up from horizontal.

9.4.B.5 Operation: If the co-located Daytime Running Light is not disabled during turn indicator operation, the turn indicator shall be visible with the running light on.

9.4.C Side Marker Turn Indicators

9.4.C.1 Position: shall be mounted on each side of the vehicle between 500 and 1800 mm rearward from the absolute front of the vehicle and within 400 mm of the extreme outer edge of the car.

9.4.C.2 Shall flash between 60 and 120 pulses per minute

9.4.C.3 Color: amber

9.4.C.4 Viewing Angle: 5° down and 15° up from horizontal, horizontal visibility as shown in Figure 1:

9.4.D Rear Brake Lights

9.4.D.1 Position: shall be located within 400 mm of the extreme outer edge of the car on each side, at least 600 mm apart (400 mm if the car is less than 1300 mm wide), at least 350 mm above the ground, and at a distance no further forward than 200 mm from the absolute rear of the vehicle.

9.4.D.2 It is permissible to have one set of lights per side of the car which operate as both the brake lights and turn indicators. The turn indicator operation has the priority in operation.

9.4.D.3 Color: red

9.4.D.4 Viewing Angle: 45° from center outwards and inwards, 5° down, and 15° up from horizontal.

9.4.D.5 Operation: Brake lights should operate if and only if the driver presses the brake pedal or regenerative braking is active.

9.4.E Rear Turn Indicators

9.4.E.1 Position: shall be located within 400 mm of the extreme outer edge of the car on each side, at least 600 mm apart (400 mm if the car is less than 1300 mm wide), at least 350 mm above the ground and at a distance no further forward than 200 mm from the absolute rear of the vehicle.

9.4.E.2 It is permissible to have one set of lights per side of the car which operate as both the brake lights and turn indicators. The turn indicator operation has the priority in operation.

9.4.E.3 Shall flash between 60 and 120 pulses per minute

9.4.E.4 Color: amber (if separately equipped from Rear Brake Lights)

9.4.E.5 Viewing Angle: 80° from center outwards, 45° from center inwards, 5° down, and 15° up from horizontal.

9.4.F High Mounted Center Brake Light

9.4.F.1 Position: Viewed from behind the solar car, the lateral position of the light shall coincide with the visual center of the solar car (see the examples in the following diagram). The top of the lamp shall be less than 150mm below the highest point of the car, and the bottom of the lamp shall be higher than the top of the rear brake lights.

9.4.F.2 Color: red

9.4.F.3 Viewing Angle: 10° from center in both left and right, and 10° up and 5° down from horizontal

9.4.H Emergency Hazard

The front turn indicators, side marker turn indicators, and rear turn indicators shall be able to be activated simultaneously and flash in sync as an Emergency Hazard signal.