Jord0903
I am attempting to implement fly-by-wire for our Formula Student car this season. Before I begin to buy specific potentiometers for the PPS's I want to get a test bench working using an 'off the shelf' pedal out of a commercial car. I was able to get my hands on one from a Corsa Opel (which has 2 PPS's), but unfortunately one of the sensors has a voltage range of 1.5V (less than the 2V requirement). 

Does anyone know of a commercial pedal that would not create this error (and ofcourse meet all of the other requirements for programming FBW using the SQ6)?

Any help would be greatly appreciated!

Below is the voltage relationship for the two PPS's in the Corsa Pedal.
PPS1_PPS2.png 
Quote 0 0
littleozfella
Almost anything Bosch is a better option, best if it crossing voltages.. ie 0.5v to 4.5v, 4.5v to 0.5v.  Usually VAG is a good starting point, but not all are in this format.. A very good one is Mitsubishi EvoX, but also hard to come by.. sorry not much help on a specific model, but should put you in the ballpark... Avoid Ford and Subaru!
    
Quote 0 0
Jord0903
Hi littleozfella, thank you for the reply! I have read a few times now that crossing voltages is best however the Formula Student UK rules specifically states both voltages must have positive slopes! I will have a look at the pedals you have suggested!
Quote 0 0
littleozfella
TBH I just done that exact pedal on a Lotus.  it works fine, but it probably won't work if you use Auto-ca which unless you have customers with locked ecu's is not really required.  If you select linear throttle calibration type there should be no issues. 

cheers..
Quote 0 0
jordaneber
Agreed that Bosch OEM sensors can work for this application, but it may just be that the Corsa Pedal is not exercising the full range of the sensor with perhaps limited pedal travel. Can you extend the range of pedal movement? Also, I think that littleozfella is correct that it will work fine as-is, unless you try to enable auto-cal (not sure if there is a work-around in the calibration for this). 

For reference, below is a link to a Bosch ECU manual, with throttle pedal info on pages 46-48. Their throttle pedal sensors have positive slopes, while engine throttle has inverse slopes for each signal. 

http://www.bosch-motorsport.de/content/downloads/Products/resources/20629081867/en/pdf/ECU%20MS%206%20Manual.pdf
Quote 0 0