Step-by-step car fixes and diagnostics you can do at home — ordered from the cheapest likely cause to the priciest, so you stop guessing.
The car was 90% finished for nine days in a row. That’s not a joke about student engineering. It’s the calendar. Our Formula Student EV car drove under its own power in the middle of September, and the only thing left on the list was wiring — add an energy meter and some sensors so … Read more
A few weeks ago a sensor lied to me for eight hours straight. The linear potentiometer that will measure suspension travel on our student race car sat perfectly still on my desk — while its output jumped around like a seismograph during an earthquake. Not drifting. Not offset. Just fuzz, edge to edge, all day. … Read more
We lined a steel battery case with electrical tape. It tore, the case became a conductor, and a 14s10p pack died. Here is what to use instead.
Reverse polarity damage sounds like something that needs big voltage. It doesn’t. At 8 p.m. on the night before our first test week, I connected a thin wire to our accelerator pedal with supply and ground swapped. The controller made one small click. Then nothing — no fault code, no beep, no light. Ten seconds, … Read more
Our race car’s wiring, in our second year, was held together by WAGO connectors and optimism. The car is a Formula Student EV, built by Create Our Car (COC) at Chung-Ang University for the EV class of Formula Student Korea. Almost nothing on the car matched the original design — wires went in, came out, … Read more