🛠 Projects

eTech Racing

Formula Student 2016-2017

During this season, I was in charge of the design and implementation of the dashboard and lightning system of the new single-seater for the 2016-2017 season.

The original design of the dashboard I was starting off looked like this: original_design_dashboard.jpeg

Check out the car from the 2015-2016 season here

This design had a bunch of flaws. Namely, the harness was very unreliable given that the casing that protected it from rain was subdivided in 3 different boxes that were interconnected.

For the new design, I started off by choosing and selecting a matrix display where it would be possible to show more information and that would also be visible with direct sunlight.

I tested a bunch of displays before making the final decision: testing other displays.jpeg

After choosing one, I had to implement the library to control it. I programmed the embeded system in C, and had to implement a library to make it easier to display pixels with it. Screenshot 2022-07-30 at 11.49.00.png

After some weeks of work, I managed to get it working: dashboard_screen.jpeg

That was the start of the PCB design process, where I was deciding what would be the components that would be included in the dashboard. Finally, I decided for a custom made array of LEDs to indicate battery level, as well as the compliant LEDs for error states and the stop switches. I also added some menu control switches in case the switches we included in the steering wheel would fail.

design_pcb.jpeg

The design and printing of the PCBs was pretty smooth, but short after I figured out they had some flaws that I had to mend manually with some nasty soldering on top.

pcbs_etech.jpeg

Fixing issues in the PCB

fixing issues in the pcb.jpeg

After the design of the PCB was finalised, I helped design the enclosing for it. It needed to be dust and water resitant and as easy to manufacture as possible.

case_design.jpeg

3D render of position of dashboard in car

3d_render.jpeg

Final fit in the car

final fit in the car.jpeg

Final fit with the wheel

attached_with_wheel.jpeg

During the competition

during the competition.jpeg

Check out some nice pictures of the final result in at the eTech Racing website

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Hey, I'm Jaume 👋

I'm an engineer building what's next