'''This page is about the sensors related to
- 2 pedal position sensors: the most important sensor, since this is the command from the driver.
- 2 break sensors: if there is an inconsistency between the 2 pedal position sensors, the slightest breaking will make the engine enter idle mode (eg.: fuelcut over 1600 RPM. Maybe a similar but not identical idle mode compared to what we have now).
- 1 throttle actuator
Nice to have
- 1..2 TPS: sensing the throttle position is nice
- MAP and MAT
- MAF - especially if EGR is used too. EGR complicates things.
- "service" ECU to watch the big guy
Pedal position sensor
Multiple throttle pedal position sensors and break sensor signal (available to the ECM of course) are a must => so a very reliable "effective TPPS" can be maintained with some fault tolerancy. With an electronic throttle-plate (an air-valve larger than an idle-valve) with a bad pedal position input only redline fuelcut will stop the RPM-rise or a brick wall. With the break-sense the ECM can enter idle-condition so the overrun fuelcut (much below redline) will make it somewhat safer.
LVDT (Linear Variable Differential Transformer)
For fully throttle-by-wire a [pedal-position sensor] is used.
Note: throttle-by-wire can be very dangerous especially for an AutoTrans equipped car if not done with same care and redundancy as aviation control equipments.