Search found 135 matches

by Noxz
Thu Dec 02, 2021 7:38 pm
Forum: Dev: Hardware
Topic: Common Rail MC33816/PT2001 dev board - 4 injectors GDI
Replies: 137
Views: 166432

Re: Common Rail MC33816/PT2001 dev board - 4 injectors GDI

The point of our current board was to give a slightly reduced footprint+parts over the evaluation board (which is tailored for the KL25Z host microcontroller board) while still retaining most functionality, and into the hands of more people. I personally would want a slightly customized version as w...
by Noxz
Thu Dec 02, 2021 6:27 pm
Forum: Dev: Hardware
Topic: Common Rail MC33816/PT2001 dev board - 4 injectors GDI
Replies: 137
Views: 166432

Re: Common Rail MC33816/PT2001 dev board - 4 injectors GDI

You are correct that it is a near copy of the evaluation board - we haven't optimized much at this stage.. 1) In [my] diesel setups there are two solenoids to control, one is a high pressure valve on the rail that can simply be held at VBat (and released when pressure builds too much). The other is ...
by Noxz
Wed Nov 24, 2021 4:31 pm
Forum: Dev: Hardware
Topic: Common Rail MC33816/PT2001 dev board - 4 injectors GDI
Replies: 137
Views: 166432

Re: Common Rail MC33816/PT2001 dev board - 4 injectors GDI

There are two different encryption keys (and no way to turn encryption off). iirc, the compiled microcode in git is for the pt2001, but if the history/commits is looked at the mc33816 is there - I don't recall any actual code changes. We may need to make the switch back to the mc33816 code if that i...
by Noxz
Mon May 18, 2020 11:06 pm
Forum: Dev: Hardware
Topic: Common Rail MC33816/PT2001 dev board - 4 injectors GDI
Replies: 137
Views: 166432

Re: Common Rail MC33816 dev board - 4 injectors GDI

This is a very useful graphic showing the main configuration points of an injection cycle
by Noxz
Sat Feb 29, 2020 2:11 am
Forum: Dev: Hardware
Topic: Common Rail MC33816/PT2001 dev board - 4 injectors GDI
Replies: 137
Views: 166432

Re: Common Rail MC33816 dev board - 4 injectors

Not J5 to J6, but J5 to specify to use the xtal onboard, and J6 to use supplied VccIO (which is 3v, not 3.3v, from discovery).. these are carry overs from the eval board. They will be removed for next revision (or just remember to solder-jumper/0R them and not install headers)
by Noxz
Thu Jun 27, 2019 5:34 am
Forum: You and your build
Topic: (Bio)Diesel Powered
Replies: 207
Views: 138649

Re: (Bio)Diesel Powered

We have SPI w/ rusEFI & "HV" working.. After a few footprint goofs, and a few bodges.. r0.1 Still todo: test the drivers, both VBattery and VBoost, on all capable channels basically, test injectors, but my personal procedure will be to get the SCV working well with the pressure sensor ...
by Noxz
Fri May 24, 2019 9:48 pm
Forum: You and your build
Topic: (Bio)Diesel Powered
Replies: 207
Views: 138649

Re: (Bio)Diesel Powered

my kl25z broke, for whatever reason.. This pushed me to migrate the SPI code into the rusEFI and actually get a dev environment setup for the frankenso.. Although it was a small roadblock, actually using the frankenso and rusEFI is the proper path and should have been done a while ago.. Next up: pre...
by Noxz
Sun Mar 31, 2019 6:03 pm
Forum: You and your build
Topic: (Bio)Diesel Powered
Replies: 207
Views: 138649

Re: (Bio)Diesel Powered

just updated the graph to have the axis labeled..
also I state in the long bit that "biodiesel" was used - which is likely "Methyl Soyate" (methyl ester of soybean oil)
by Noxz
Sun Mar 31, 2019 3:44 am
Forum: You and your build
Topic: (Bio)Diesel Powered
Replies: 207
Views: 138649

Re: (Bio)Diesel Powered

I believe time for a well deserved update.. The flow bench was rearranged a bit for flow rate experiments. The hand drill was replaced with a (hitachi m12vc) router with a 1/4" shank to 3/8" square drive adapter I machined at school. This router was then connected to an imported 3K VA vari...
by Noxz
Fri Feb 08, 2019 11:27 pm
Forum: You and your build
Topic: (Bio)Diesel Powered
Replies: 207
Views: 138649

Re: (Bio)Diesel Powered

Hi anyone manages to used the mc38816 with an Arduino it Stm32? I am worried about the spi part The only part where SPI is used is to sent the initial code... and maybe to update configs, it doesnt need to be much. the eval board came with a KL25Z which has arduino compatible library and pretty sim...
by Noxz
Tue Jan 29, 2019 2:07 pm
Forum: You and your build
Topic: (Bio)Diesel Powered
Replies: 207
Views: 138649

Re: (Bio)Diesel Powered

Please keep up the good work! I`ve been lurking the forums and I`m really glad someone's finally poking around the diesel. I've been somewhat meaning to update once I had some more equations solidified.. I am modeling the pump a bit more (in Octave/Matlab), specifically that SCV. I've somewhat swit...
by Noxz
Fri Jan 11, 2019 3:59 am
Forum: You and your build
Topic: (Bio)Diesel Powered
Replies: 207
Views: 138649

Re: (Bio)Diesel Powered

Only real update is that because I did not know what material the seals were made of, and I dont want any leaks down the road, I ordered the correct sized Viton (biodiesel compatible) O-Rings for the SCV (2 diff sizes, one was the "replace") before I reinstall it (and test further, thus so...
by Noxz
Mon Jan 07, 2019 5:00 am
Forum: You and your build
Topic: (Bio)Diesel Powered
Replies: 207
Views: 138649

Re: (Bio)Diesel Powered

Well, that was easy enough.. I was able to get varying amounts of the valve (the visible plunger is about 3mm long).. I first tried adjusting the SCV_Time_Off, but all that does is change the period, and too long audible noises start.. so I lowered it back down, then just played with the SCV_I_Hold ...
by Noxz
Mon Jan 07, 2019 3:14 am
Forum: You and your build
Topic: (Bio)Diesel Powered
Replies: 207
Views: 138649

Re: (Bio)Diesel Powered

About USB, remember cables are only supposed to be like 3ft or 6ft long. After that you start to get elevated Bit Error Rates (BER), which can corrupt data. right, my longest cord is specialy made for my bicycle power meter head unit, to make it so you can easily get to the bike, about 8ft long.. b...
by Noxz
Mon Jan 07, 2019 2:48 am
Forum: You and your build
Topic: (Bio)Diesel Powered
Replies: 207
Views: 138649

Re: (Bio)Diesel Powered

I was able to rewrite one of the injector microcores to handle pulsing the SCV, even though triggered from a non injector input (configurable per core, but I goofed up for a few hours as the layout of the eval board is strange.. 5-6-4-3-2-1).. I did not include a peak current/time functionality beca...
by Noxz
Mon Dec 31, 2018 4:03 am
Forum: You and your build
Topic: (Bio)Diesel Powered
Replies: 207
Views: 138649

Re: (Bio)Diesel Powered

More blogging of info.. Denso finally has part numbers for the '18 Cruze diesel.. Pump: DCRP301000 SCV: DCRS301990 Injectors: DCRI300050 Glow Plugs: DG-625 they may have made the radiator and windshield wipers as well :) Part numbers dont equate to datasheets, but some info is better than none.. esp...
by Noxz
Mon Dec 31, 2018 3:33 am
Forum: You and your build
Topic: (Bio)Diesel Powered
Replies: 207
Views: 138649

Re: (Bio)Diesel Powered

Including a small chart regarding the change of resistance due to the heat of a solenoid.. Temp. (℃) 0 20 60 100 120 Resistance Ratio 0.9 1 1.2 1.3 1.4 Current Ratio 1.1 1 0.8 0.75 0.7 Because less power, there is also less magnetomotive force.. might look into this further down the road. .. For saf...
by Noxz
Sun Dec 30, 2018 8:57 pm
Forum: You and your build
Topic: (Bio)Diesel Powered
Replies: 207
Views: 138649

Re: (Bio)Diesel Powered

Took a moment to re-learn the microcode and get the upload via SPI to work again (due to array lengths that were not updated in the header file so not all of the code was being uploaded). First time hooking it up and I got a nice PWM generated from the MC33816. Ran it again and no such pulses, only ...
by Noxz
Sat Dec 29, 2018 9:36 pm
Forum: You and your build
Topic: (Bio)Diesel Powered
Replies: 207
Views: 138649

Re: (Bio)Diesel Powered

if I decrease the Time resolution you can see the spikes in the high pressure pump pressure because of when I check the check valve status.. with increased resolution the spikes are not visible, because the plunger/volume for the pump is so small (0.5cc) in comparison to the rail (~44cc?) the amount...
by Noxz
Sat Dec 29, 2018 9:27 pm
Forum: You and your build
Topic: (Bio)Diesel Powered
Replies: 207
Views: 138649

Re: (Bio)Diesel Powered

it feels more so that there wasn't a good tutorial on a complete setup from start to finish.. datasheets are usually overly complex about every register, but tying it all together is what makes it tick. How I am using Octave currently is just a graphing extension on scripting.. so at this point it w...
by Noxz
Sat Dec 29, 2018 7:45 pm
Forum: You and your build
Topic: (Bio)Diesel Powered
Replies: 207
Views: 138649

Re: (Bio)Diesel Powered

Update.. I got the flow bench dusted off and powered back up, which required flipping some circuit breakers back on that were off during house renovation.. I was playing around with PWM signals (from the KL25Z to the MC33816, so actually using the injector driver board) to the relief/PCV. Essentiall...
by Noxz
Wed Dec 19, 2018 5:36 pm
Forum: You and your build
Topic: (Bio)Diesel Powered
Replies: 207
Views: 138649

Re: (Bio)Diesel Powered

SCV = Suction Control Valve PCV = Pressure Control Valve, which I have been calling the [rail] relief valve, but I like this new acronym (from a paper) better So, after a little bit of digging and thinking last night, this is essentially what I came up with, logic wise.. The purpose of the SCV is an...
by Noxz
Wed Dec 19, 2018 4:41 am
Forum: You and your build
Topic: (Bio)Diesel Powered
Replies: 207
Views: 138649

Re: (Bio)Diesel Powered

On winter break till just past New Years, so have a bit of down time.. (but school's been great, and I haven't been rained on _too_ much.. yet) Reading through a few things from the service manual (to remember things), it stated the SCV is controlled by a PWM signal, not a timed control. It did, how...
by Noxz
Mon Oct 29, 2018 1:42 am
Forum: You and your build
Topic: (Bio)Diesel Powered
Replies: 207
Views: 138649

Re: (Bio)Diesel Powered

I have relays on hand to make it work if I need to go that route..

the IC I was looking into was ST's L9524C
https://www.st.com/en/automotive-analog-and-power/l9524c.html

Has a few more features than simple on/off :)
by Noxz
Sun Oct 28, 2018 7:17 pm
Forum: You and your build
Topic: (Bio)Diesel Powered
Replies: 207
Views: 138649

Re: (Bio)Diesel Powered

I could see how unexpected things could happen - worst case scenario if unable to interface would be to have a tiny uC w/ a single SPI that does nothing but upload the code on bootup. And prototyping will be done on the evaluation - initially. I think I will redesign kb1gtt's board that he made to a...
by Noxz
Sun Oct 28, 2018 1:27 am
Forum: You and your build
Topic: (Bio)Diesel Powered
Replies: 207
Views: 138649

Re: (Bio)Diesel Powered

Have you considered OEM external GDI injector drivers as first iteration option? I never really looked into what else was available due to the need to interface with it to some degree - or the unknown settings/curve of the rail pressure sensor. Is the concern (due to you quoting part of my text) th...
by Noxz
Fri Oct 19, 2018 12:28 am
Forum: You and your build
Topic: (Bio)Diesel Powered
Replies: 207
Views: 138649

Re: (Bio)Diesel Powered

Maybe help to assemble ... https://rusefi.com/docs/ibom/frankenso_latest.html thanks for the link, but I got an assembled board. really nice interface for looking through though, for whichever mods I may need to make - taping into the SPI should be easy enough (for the MC33816). I might sample a gl...
by Noxz
Thu Oct 18, 2018 2:22 am
Forum: You and your build
Topic: (Bio)Diesel Powered
Replies: 207
Views: 138649

Re: (Bio)Diesel Powered

Assembled frankenso bundle arrived today.. I was poking around at some of the scheduler code last night, will be diving deeper into it now that I have compatible hardware. School's been great - exactly what I wanted, but not a lot of time in the end for personal projects, compared to what I was able...
by Noxz
Mon Oct 08, 2018 12:59 pm
Forum: You and your build
Topic: (Bio)Diesel Powered
Replies: 207
Views: 138649

Re: (Bio)Diesel Powered

I did get the assembled+pigtail. I have some basic control for the fuel pressure that I am working with, but beyond that nothing else. I don't have the original ECU but I do have the service manual so at least I know what sensor is what and what voltage etc it is looking for, and sometimes nominal v...
by Noxz
Sun Oct 07, 2018 4:45 pm
Forum: You and your build
Topic: (Bio)Diesel Powered
Replies: 207
Views: 138649

Re: (Bio)Diesel Powered

k.. finally ordered a frankenso

got tired of dealing with this embedded board as a workaround, especially if being unused in the end.