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I'd suggest the best way of objectively assessing performance is to apply a synthesised throttle pedal input that performs a normally impossible instant step change from 0 to ~50%. Then log the throttle plate position and look for the speed of response along with minimisation of overshoot and oscill...

Cheers for the pointers. I'll still be testing with my solution as it's all available through-hole rather than SMT. Can't find a source for BTN7971 in the UK and the TLE5205-2G is very expensive. I'm going to plan on using the BTN8982.

I've ordered 2 N and 2 P channel FETs [TO220] along with 2 TC4427s this evening. Apologies in advance for stupid software questions. They'll be along the lines of "where should I put the code?", "where and how should I store config parameters?" and "please help with I/O setu...

I was planning on something rather simpler. And for a prototype I'll swap out the Dual P-N FETs for separate P & N channel ones.

Sliding mode control as presented here: http://www.actc-control.com/events/meetings/ACTC_ET.pdf looks promising. All the maths looked difficult to start with until I realised it was summing the output position, the inverse of the required position and the last position acceleration multiplied by a f...

I will happily publish schematics once I'm a bit closer to considering manufacture of a prototype, with any luck that might be later this week. I have somewhat shamelessly plagiarised elements of frankenso (SMPS, Analogue input, High Side drivers), hope this isn't a problem. Very happy to hear your ...

Roughed out PCB along with a check that the connector and case I've chosen are looking to be about right.

https://youtu.be/3rJKCP81mNk

Excellent, that seems to work well on the bare discovery board. Can I suggest a couple more files are modified? TunerStudio ini file: Line 135: Change from: trigger_type = bits, U32, 536, [0:4], "custom toothed wheel", "ford aspire", "dodge neon", "Miata NA", ...

I'm trying to implement support for a Rover K series 36-4 trigger pattern. This is 13-1-2-1-14-1-3-1 where the 1's are missing teeth. There's no camshaft sensor so this needs to sync on the crank alone. Code as it stands is below. It works without the two commented lines but isn't sync'd so TDC can ...

Welcome! Sounds like you are on the right track! Do you have a vr type of sensor? Thats the trickiest one to interface with... Yes vr sensor. Was going try running the MAX9927 in parallel with the existing ECU and hoping it doesn't load it so much the existing one fails to trigger. If not then I'll...

Intending to get this going to replace the standard ECU running a Rover 1.8 K series engine in a GTM Libra kit car. I've got the Discovery board and am raring to go. For background I've a degree in Electronic Engineering and 20 years experience of embedded hardware and software. This'll be my first ...