Knock module for MS3 (beta test)
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Knock module for MS3 (beta test)
I have developed a two channel knock-module as an internal add-on for MS3.
For communication with the MS3, it uses 'D14', 'D15', 'D16', 'JS11' and PM2. i.e. you CANNOT use 'LED spark' in conjunction with this board. at the same time.
It utilises a custom knock sensing chip from TI which features software selectable gain and frequency bandpass filters.
When the engine is running COP or sequential and the MS3 knows which cylinder is firing, the firmware allows different gains to be applied to each cylinder and the sensor level per cylinder to be reported.
The firmware allows a user-settable knock "window" (engine angle over which it listens to the sensor.)
You can take a look at these menus in the recent MS3 pre1.1 firmwares if you select "Internal" as the knock sensor.
The hardware works, but a few component values may need optimising based on field trials. The firmware is written but again needs wider field testing to fully prove it out.
I have a handful of assembled boards available.
James
(Edited to add more of the firmware features)
The board mounts directly to the top of the MS3 card, fits within the standard case and works with the standard ribbon cables.For communication with the MS3, it uses 'D14', 'D15', 'D16', 'JS11' and PM2. i.e. you CANNOT use 'LED spark' in conjunction with this board. at the same time.
It utilises a custom knock sensing chip from TI which features software selectable gain and frequency bandpass filters.
When the engine is running COP or sequential and the MS3 knows which cylinder is firing, the firmware allows different gains to be applied to each cylinder and the sensor level per cylinder to be reported.
The firmware allows a user-settable knock "window" (engine angle over which it listens to the sensor.)
You can take a look at these menus in the recent MS3 pre1.1 firmwares if you select "Internal" as the knock sensor.
The hardware works, but a few component values may need optimising based on field trials. The firmware is written but again needs wider field testing to fully prove it out.
I have a handful of assembled boards available.
James
(Edited to add more of the firmware features)
I can repair or upgrade Megasquirts in UK. http://www.jamesmurrayengineering.co.uk
My Success story: http://www.msextra.com/forums/viewtopic ... 04&t=34277
MSEXTRA documentation at: http://www.msextra.com/doc/index.html
New users, please read the "Forum Help Page".
My Success story: http://www.msextra.com/forums/viewtopic ... 04&t=34277
MSEXTRA documentation at: http://www.msextra.com/doc/index.html
New users, please read the "Forum Help Page".
Re: Knock module for MS3 (beta test)
Dibs!
PM sent...
PM sent...
Eric Law
1990 Audi 80 quattro with AAN turbo engine: happily running on MS3+MS3X
2012 Audi A4 quattro, desperately in need of tweaking
Be alert! America needs more lerts.
1990 Audi 80 quattro with AAN turbo engine: happily running on MS3+MS3X
2012 Audi A4 quattro, desperately in need of tweaking
Be alert! America needs more lerts.
Re: Knock module for MS3 (beta test)
Hello James,
I would love to give this a try on the my turbo race car. It is a 4 cylinder (Miata) engine running 20PSI making just under 550HP.
I would love to give this a try on the my turbo race car. It is a 4 cylinder (Miata) engine running 20PSI making just under 550HP.
1984 Mazda RX-7 GTM Class (BP Engine + BW-EFR 8374 Turbo Full COP/Sequential on MS3+MS3x)
1986 Toyota 4Runner (22RE running on MS2-Extra 3.2.1)
1986 Toyota 4Runner (22RE running on MS2-Extra 3.2.1)
Re: Knock module for MS3 (beta test)
I have a difficult time remembering all of the uses and the designations for each pin/pad and function for all of them. The best thing I could find is this http://msextra.com/doc/ms3/hardware.html#pins but it doesn't have PM2 on it. I do know that D14, D15, D16 are related to the LED's and that's about it, but for new people I think that this is something that could be greatly improved.jsmcortina wrote: For communication with the MS3, it uses 'D14', 'D15', 'D16', 'JS11' and PM2. i.e. you CANNOT use 'LED spark' in conjunction with this board. at the same time.
I don't really have any great suggestions for how to improve it, mainly because I don't understand it very well.
Edit: I am also interested in a beta board for knock control.
97 Subaru Impreza 2.2L - MS3 w/ MS3/x
Re: Knock module for MS3 (beta test)
Is there a schematic available? I have an MS3 and a couple of these TI chips available.
The man behind MS Labs
2005 Audi A3 2.0L TFSI DSG AWD - Extreme MS3
2002 Mazda Miata 1.8 6sp - Enhanced MS3 1.4.0, sequential injection, sequential ignition, big turbo, lots of boost
2005 Audi A3 2.0L TFSI DSG AWD - Extreme MS3
2002 Mazda Miata 1.8 6sp - Enhanced MS3 1.4.0, sequential injection, sequential ignition, big turbo, lots of boost
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Re: Knock module for MS3 (beta test)
PM2 is presently only used with V10/12 running full sequential fuel. Otherwise it is just an unused pin hole on the MS3X.
I've worked out some pricing. This is based on low volume parts costs, with only a slim contribution to my assembly time and recognising that this is beta.
$60 assembled, bench tested and shipped to the USA using "Airsure" postal service.
$50 without testing.
Contact me by PM. First come first served.
James
I've worked out some pricing. This is based on low volume parts costs, with only a slim contribution to my assembly time and recognising that this is beta.
$60 assembled, bench tested and shipped to the USA using "Airsure" postal service.
$50 without testing.
Contact me by PM. First come first served.
James
I can repair or upgrade Megasquirts in UK. http://www.jamesmurrayengineering.co.uk
My Success story: http://www.msextra.com/forums/viewtopic ... 04&t=34277
MSEXTRA documentation at: http://www.msextra.com/doc/index.html
New users, please read the "Forum Help Page".
My Success story: http://www.msextra.com/forums/viewtopic ... 04&t=34277
MSEXTRA documentation at: http://www.msextra.com/doc/index.html
New users, please read the "Forum Help Page".
Re: Knock module for MS3 (beta test)
So ready. Knock sensor is already wired.
Re: Knock module for MS3 (beta test)
how strictly does it rely on JS11?
Could I, for example, trade JS11 for "knock" on the MS3X?
I guess a general question: can you re-map pins and attach it otherwise. My "above MS3" is pretty tight because of P&H drivers...
Could I, for example, trade JS11 for "knock" on the MS3X?
I guess a general question: can you re-map pins and attach it otherwise. My "above MS3" is pretty tight because of P&H drivers...
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Re: Knock module for MS3 (beta test)
Interested as my MS3 is currently on the workbench.
What frequency is it tuned at?
What frequency is it tuned at?
2016 Westfield SEiW MX5 1.8 - 6sp - Torsen - MSM turbo - MS3 Pro - 2.3kg/hp
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Re: Knock module for MS3 (beta test)
Whatever you want it to be. Actually, there are a couple increments you pick from, but it's software configurable.f_devocht wrote: What frequency is it tuned at?
Matt Cramer -1966 Dodge Dart slant six running on MS3X
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Re: Knock module for MS3 (beta test)
The pins chosen are not flexible because most of them are the SPI interface pins on the processor.
James
James
I can repair or upgrade Megasquirts in UK. http://www.jamesmurrayengineering.co.uk
My Success story: http://www.msextra.com/forums/viewtopic ... 04&t=34277
MSEXTRA documentation at: http://www.msextra.com/doc/index.html
New users, please read the "Forum Help Page".
My Success story: http://www.msextra.com/forums/viewtopic ... 04&t=34277
MSEXTRA documentation at: http://www.msextra.com/doc/index.html
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Re: Knock module for MS3 (beta test)
That is fantastic. I am running a J&S Interceptor with dual knock sensors so I could run these concurrently for testing as single channel each. Unfortunately, it will be a couple of months before I have my engine and transmission back together and in the car. I'll be happy to be a test mule at that time.
Steve
1983 Porsche 911SC 3.4L, MS-3 v3.57 (pre1.4 alpha1, TS 2.6.14,JBperf I/O extender), MS3X full sequential, RTC, 12x LS2 D585 coil twinplug, PMAS HPX MAF, LC-1, GT35R turbocharged, full-bay intercooler, J&S Interceptor, e85.
1983 Porsche 911SC 3.4L, MS-3 v3.57 (pre1.4 alpha1, TS 2.6.14,JBperf I/O extender), MS3X full sequential, RTC, 12x LS2 D585 coil twinplug, PMAS HPX MAF, LC-1, GT35R turbocharged, full-bay intercooler, J&S Interceptor, e85.
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Re: Knock module for MS3 (beta test)
PM'd
88 RX-7 TII - MS2 Extra 1.0.2
68 Mustang 351C - MS3X
88 Volvo 245 - 2JZGTE VVTi powered, MS3X + MSGPIO Mshift controlled
68 Mustang 351C - MS3X
88 Volvo 245 - 2JZGTE VVTi powered, MS3X + MSGPIO Mshift controlled
Re: Knock module for MS3 (beta test)
That's so nice!
I've still not see the tunerstudio settings about this, but there is the ability to change the attenuation proportional to the rpm? Would be nice also to be able to change the base frequency with the load, as when load increase the detonation frequency change a bit due to different chamber temperature (so different speed of sound). There is also the control of the integrator constant (another sort of attenuation avaiable in tpic)?
thanks for your work!
I've still not see the tunerstudio settings about this, but there is the ability to change the attenuation proportional to the rpm? Would be nice also to be able to change the base frequency with the load, as when load increase the detonation frequency change a bit due to different chamber temperature (so different speed of sound). There is also the control of the integrator constant (another sort of attenuation avaiable in tpic)?
thanks for your work!
Enrico
Opel/Vauxhall Corsa GSi MS2
Subaru v4 EJ20 MS3
Opel/Vauxhall Corsa GSi MS2
Subaru v4 EJ20 MS3
Re: Knock module for MS3 (beta test)
This is fantastic. I would love to test this out as I have been running KnockSense MS for a long time. Would like to conjoin the hardware/software. Unfortunately, I am currently running LED spark on my current setup.
'90 Corrado G60 on MSns -e -> MS3 - '62 Harley Panhead
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Re: Knock module for MS3 (beta test)
Good Job boys!!! Thsi is one what i waiting to my ms3 system =)
I have 2.0 Ohc motor in Ford Taunus Coupe 1975 and its running now MS3+ms3x.
Its myself madet 2.0i Turbo project and when this can order to Finland i order it =)
I have 2.0 Ohc motor in Ford Taunus Coupe 1975 and its running now MS3+ms3x.
Its myself madet 2.0i Turbo project and when this can order to Finland i order it =)
https://www.facebook.com/PikkiS-112502032715453/
https://www.theniceman.com/coppermine/
Ford Taunus Coupe 1975 2.0i Turbo
Ms3 + MS3x in Taunus
MS3 Pro Ultimate in PikkiS
https://www.theniceman.com/coppermine/
Ford Taunus Coupe 1975 2.0i Turbo
Ms3 + MS3x in Taunus
MS3 Pro Ultimate in PikkiS
Re: Knock module for MS3 (beta test)
Bought time! Haha. PM sent. I have a working car/MS3x setup with two OE knock sensors just sitting there waiting to be used!
I'm an Alpha junkie!!
Old: MSII batch fuel, wasted spark. New: MS3x, sequential fuel, wasted spark, VVTi
Thanks to all who contributed to MSextra and MS3 code and thanks to DIY Tuning!
Old: MSII batch fuel, wasted spark. New: MS3x, sequential fuel, wasted spark, VVTi
Thanks to all who contributed to MSextra and MS3 code and thanks to DIY Tuning!
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Re: Knock module for MS3 (beta test)
The small stock I had is now allocated, pending payment. I'll post here if/when any more are available. First, we need this batch solidly tested on engines.
James
James
I can repair or upgrade Megasquirts in UK. http://www.jamesmurrayengineering.co.uk
My Success story: http://www.msextra.com/forums/viewtopic ... 04&t=34277
MSEXTRA documentation at: http://www.msextra.com/doc/index.html
New users, please read the "Forum Help Page".
My Success story: http://www.msextra.com/forums/viewtopic ... 04&t=34277
MSEXTRA documentation at: http://www.msextra.com/doc/index.html
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Re: Knock module for MS3 (beta test)
I would like when you have more or one payment is missing.
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Re: Knock module for MS3 (beta test)
Put me in que......
Brent Savage
life behind the zion curtain
90 audi RS2 20VTQ 6sp MS3, MSX COP and Sequential and now MAF
87 Scirocco 2.0 ABA 16v EIP tubular cast MSII COP
86 Audi 4K20VTQ MSII
90 Audi 90 sedan 3.6l DOHC V8TT (project car)
89 VW cabbie (bitch basket) 2.0 ABA Turbo MSII
life behind the zion curtain
90 audi RS2 20VTQ 6sp MS3, MSX COP and Sequential and now MAF
87 Scirocco 2.0 ABA 16v EIP tubular cast MSII COP
86 Audi 4K20VTQ MSII
90 Audi 90 sedan 3.6l DOHC V8TT (project car)
89 VW cabbie (bitch basket) 2.0 ABA Turbo MSII