Search found 130 matches

by Noxz
Thu Jun 27, 2019 5:34 am
Forum: Hello World
Topic: (Bio)Diesel Powered
Replies: 206
Views: 16064

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 to maintain a ...
by Noxz
Fri May 24, 2019 9:48 pm
Forum: Hello World
Topic: (Bio)Diesel Powered
Replies: 206
Views: 16064

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: Hello World
Topic: (Bio)Diesel Powered
Replies: 206
Views: 16064

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: Hello World
Topic: (Bio)Diesel Powered
Replies: 206
Views: 16064

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 variac, and a ...
by Noxz
Fri Feb 08, 2019 11:27 pm
Forum: Hello World
Topic: (Bio)Diesel Powered
Replies: 206
Views: 16064

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: Hello World
Topic: (Bio)Diesel Powered
Replies: 206
Views: 16064

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: Hello World
Topic: (Bio)Diesel Powered
Replies: 206
Views: 16064

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 somewhat wai...
by Noxz
Mon Jan 07, 2019 5:00 am
Forum: Hello World
Topic: (Bio)Diesel Powered
Replies: 206
Views: 16064

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: Hello World
Topic: (Bio)Diesel Powered
Replies: 206
Views: 16064

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: Hello World
Topic: (Bio)Diesel Powered
Replies: 206
Views: 16064

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: Hello World
Topic: (Bio)Diesel Powered
Replies: 206
Views: 16064

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: Hello World
Topic: (Bio)Diesel Powered
Replies: 206
Views: 16064

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: Hello World
Topic: (Bio)Diesel Powered
Replies: 206
Views: 16064

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: Hello World
Topic: (Bio)Diesel Powered
Replies: 206
Views: 16064

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: Hello World
Topic: (Bio)Diesel Powered
Replies: 206
Views: 16064

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: Hello World
Topic: (Bio)Diesel Powered
Replies: 206
Views: 16064

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: Hello World
Topic: (Bio)Diesel Powered
Replies: 206
Views: 16064

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: Hello World
Topic: (Bio)Diesel Powered
Replies: 206
Views: 16064

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: Hello World
Topic: (Bio)Diesel Powered
Replies: 206
Views: 16064

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 ... 9524c.html

Has a few more features than simple on/off :)
by Noxz
Sun Oct 28, 2018 7:17 pm
Forum: Hello World
Topic: (Bio)Diesel Powered
Replies: 206
Views: 16064

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: Hello World
Topic: (Bio)Diesel Powered
Replies: 206
Views: 16064

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: Hello World
Topic: (Bio)Diesel Powered
Replies: 206
Views: 16064

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: Hello World
Topic: (Bio)Diesel Powered
Replies: 206
Views: 16064

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: Hello World
Topic: (Bio)Diesel Powered
Replies: 206
Views: 16064

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: Hello World
Topic: (Bio)Diesel Powered
Replies: 206
Views: 16064

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.
by Noxz
Tue Oct 02, 2018 12:13 am
Forum: Hello World
Topic: (Bio)Diesel Powered
Replies: 206
Views: 16064

Re: (Bio)Diesel Powered

First week of school out of the way, already 3 projects completed.. I like tradeschools :) I worked a lil on the 'engine' over the weekend, finally got a look into the code base, specifically the RPM calculator and the events. I need to adopt a similar rpm/crank angle setup (I should just get a fran...
by Noxz
Sat Sep 22, 2018 1:44 pm
Forum: Hello World
Topic: (Bio)Diesel Powered
Replies: 206
Views: 16064

Re: (Bio)Diesel Powered

No injectors clicking just yet.. working towards the pressure regulation

School starts on Monday..
by Noxz
Sat Sep 22, 2018 12:18 am
Forum: Hello World
Topic: (Bio)Diesel Powered
Replies: 206
Views: 16064

Re: (Bio)Diesel Powered

Silhouette, or Silly for short.

.. just recently 18mo, and finally got "fixed" on Monday

At least you didnt call him 'Pongo'
by Noxz
Fri Sep 21, 2018 11:57 pm
Forum: Hello World
Topic: (Bio)Diesel Powered
Replies: 206
Views: 16064

Re: (Bio)Diesel Powered

that was the shipping pallet.. getting it off of it will require a lift + engine stand.. which are on the list
by Noxz
Fri Sep 21, 2018 9:59 pm
Forum: Hello World
Topic: (Bio)Diesel Powered
Replies: 206
Views: 16064

Re: (Bio)Diesel Powered

Cleaned up the second (downstairs) kitchen - somewhat, which is also now the only entrance since I removed the upper entrance front door (still no permits, I may need an engineer's stamp for seismic retrofit). I moved my chemistry stuff (some of it) to where I was housing some of the construction st...