Search found 11 matches
- Sat Apr 02, 2016 3:31 pm
- Forum: Dev: Software
- Topic: electronic throttle body control ETB
- Replies: 290
- Views: 446582
Re: electronic throttle body control ETB
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...
- Thu Mar 31, 2016 5:42 pm
- Forum: Dev: Software
- Topic: electronic throttle body control ETB
- Replies: 290
- Views: 446582
Re: electronic throttle body control ETB
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.
- Wed Mar 30, 2016 9:29 pm
- Forum: Dev: Software
- Topic: electronic throttle body control ETB
- Replies: 290
- Views: 446582
Re: electronic throttle body control ETB
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...
- Wed Mar 30, 2016 6:10 pm
- Forum: Dev: Software
- Topic: electronic throttle body control ETB
- Replies: 290
- Views: 446582
Re: electronic throttle body control ETB
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.
- Tue Mar 29, 2016 8:52 pm
- Forum: Dev: Software
- Topic: electronic throttle body control ETB
- Replies: 290
- Views: 446582
Re: electronic throttle body control ETB
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...
- Mon Jan 04, 2016 5:56 pm
- Forum: Dev: Hardware
- Topic: Rover K Series first cut hardware
- Replies: 4
- Views: 4462
Re: Rover K Series first cut hardware
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 ...
- Sun Jan 03, 2016 9:09 pm
- Forum: Dev: Hardware
- Topic: Rover K Series first cut hardware
- Replies: 4
- Views: 4462
Rover K Series first cut hardware
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
https://youtu.be/3rJKCP81mNk
- Mon Dec 28, 2015 10:27 pm
- Forum: Dev: Software
- Topic: 36-4 trigger wheel
- Replies: 8
- Views: 7034
Re: 36-4 trigger wheel
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", ...
- Sun Dec 27, 2015 7:13 pm
- Forum: Dev: Software
- Topic: 36-4 trigger wheel
- Replies: 8
- Views: 7034
36-4 trigger wheel
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 ...
- Mon Oct 12, 2015 7:52 pm
- Forum: You and your build
- Topic: Hi from the UK
- Replies: 3
- Views: 3703
Re: Hi from the UK
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...
- Sun Oct 11, 2015 4:48 pm
- Forum: You and your build
- Topic: Hi from the UK
- Replies: 3
- Views: 3703
Hi from the UK
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 ...