Motorvate DIY Video: How Drive by Wire Works
 

On this episode of Motorvate’s DIY garage, we are going to show you how drive by wire works, by making our own drive by wire system using an Arduino Uno clone, an old volume control (variable resistor) and a electronic throttle body from an Infiniti G37.

:tup: Nice job.

What causes the negative spike at the end of each pulse? Motor inductance?


Edit: Watched a few more of your vids and was impressed.

For the K&N vs OEM air filter test, I would like to have seen another run with the OEM filter - this would show if engine internals (and other parts in the engine bay) warming had any effect. Going by fuel/oil/water temp data, the effect should be minimal but a third run with the OEM filter would "prove" it.

Correct!
When the MOSFET is turned off, the magnetic field in the DC motor collapses and induces a reverse current. This is also known as "Back EMF"

Nice !

Thanks for the kind words about my videos.

I am planning to go back to a different dyno and re-test. This time with a new Infiniti filter, used K&N, freshly cleaned K&N and NO air filter.

Plus I will be data logging the air pressure just after the filter with an Arduino Uno clone and differential +/- 10KPa Honeywell pressure sensor, writing to a SD card.

AND using an other Arduino, data log the differential oil temps and trans oil temps on the 6 speed manual.

As you may of guessed, I do like my data :)

That was a succinct explanation video! Thanks!

Thank you, that is my goal: Short and to the point.

You might be surprised how long it takes to write a short script.
This script alone took about 4 hours to write.

I'm glad I love what I do :)