ECU6 board
Al Lipper
efi at cardozo.org
Mon Feb 21 17:45:50 GMT 2000
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Daniel,
To be honest, I'm struggling with electrical filtering theory myself, so
perhaps someone else could answer thet.
Al
-----Original Message-----
From: Daniel [mailto:duagu at hotmail.com]
Sent: Wednesday, February 16, 2000 8:27 PM
To: Al Lipper
Subject: Re: ECU6 board
sorry to ask why but i am a bit slow on that, i know that the ignition
coil would produces spikes in the electrical circuitry but i assumed that
the filtering should be done before the supply goes into the ecu board.
Daniel
----- Original Message -----
From: Al Lipper
To: Daniel
Sent: Thursday, February 17, 2000 1:46 AM
Subject: RE: ECU6 board
Try a 470uf electrolytic cap. between ign. coil positive and gnd.
Al
-----Original Message-----
From: Daniel [mailto:duagu at hotmail.com]
Sent: Wednesday, February 16, 2000 5:42 PM
To: Al Lipper
Subject: Re: ECU6 board
Hi Al,
thanks for the advice, I think i will place a capacitor in parallel
between the battery and the ecu board, probably use one of the spare
capacitors i have lying around, maybe 10uF.
Daniel
----- Original Message -----
From: Al Lipper
To: Daniel ; EFI
Sent: Wednesday, February 16, 2000 4:52 AM
Subject: RE: ECU6 board
Daniel,
I work for California Polytechnic State University. Apart from
that, our EFI company is Injection Logic (www.injectionlogic.com) and
focuses on selling custom EFI system designs. ECU6 and ECU7 are the result
of the research from the products we market. I believe that cooperation is
the greatest way to increase knowledge and promote development, so I have
chosen to share most of the data on the systems we design. The proprietary
information generally has to do with systems designed for a specific
application. Even so, I try my best to use what I've learned from that work
to help people with questions. I'm very glad to hear of your progress with
ECU6. One caution, unless your vehicle's electrical system is VERY
noise-free, you will probably need some filtering on the power supply input,
or it may spontaneously reset (or report incorrect RPM, or fire the
injectors when it shouldn't). Good luck!
Al
P.S. Thanks for the update.
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<META content=3D"text/html; charset=3Diso-8859-1" =
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<DIV><FONT color=3D#0000ff face=3DArial size=3D2><SPAN=20
class=3D540394917-21022000>Daniel,</SPAN></FONT></DIV>
<DIV><FONT color=3D#0000ff face=3DArial size=3D2><SPAN=20
class=3D540394917-21022000> To be honest, I'm =
struggling with=20
electrical filtering theory myself, so perhaps someone else could answer =
thet.</SPAN></FONT></DIV>
<DIV><FONT color=3D#0000ff face=3DArial size=3D2><SPAN=20
class=3D540394917-21022000></SPAN></FONT> </DIV>
<DIV><FONT color=3D#0000ff face=3DArial size=3D2><SPAN=20
class=3D540394917-21022000> &nbs=
p; =20
Al</SPAN></FONT></DIV>
<BLOCKQUOTE=20
style=3D"BORDER-LEFT: #0000ff 2px solid; MARGIN-LEFT: 5px; MARGIN-RIGHT: =
0px; PADDING-LEFT: 5px">
<DIV align=3Dleft class=3DOutlookMessageHeader dir=3Dltr><FONT =
face=3DTahoma=20
size=3D2>-----Original Message-----<BR><B>From:</B> Daniel=20
[mailto:duagu at hotmail.com]<BR><B>Sent:</B> Wednesday, February 16, =
2000 8:27=20
PM<BR><B>To:</B> Al Lipper<BR><B>Subject:</B> Re: ECU6=20
board<BR><BR></DIV></FONT>
<DIV><FONT face=3DArial size=3D2>sorry to ask why but i am a bit =
slow on=20
that, i know that the ignition coil would produces spikes in the =
electrical=20
circuitry but i assumed that the filtering should be done before =
the=20
supply goes into the ecu board.</FONT></DIV>
<DIV><FONT face=3DArial size=3D2>Daniel</FONT></DIV>
<BLOCKQUOTE=20
style=3D"BORDER-LEFT: #000000 2px solid; MARGIN-LEFT: 5px; =
MARGIN-RIGHT: 0px; PADDING-LEFT: 5px; PADDING-RIGHT: 0px">
<DIV style=3D"FONT: 10pt arial">----- Original Message ----- </DIV>
<DIV=20
style=3D"BACKGROUND: #e4e4e4; FONT: 10pt arial; font-color: =
black"><B>From:</B>=20
<A href=3D"mailto:efi at cardozo.org" title=3Defi at cardozo.org>Al =
Lipper</A> </DIV>
<DIV style=3D"FONT: 10pt arial"><B>To:</B> <A =
href=3D"mailto:duagu at hotmail.com"=20
title=3Dduagu at hotmail.com>Daniel</A> </DIV>
<DIV style=3D"FONT: 10pt arial"><B>Sent:</B> Thursday, February 17, =
2000 1:46=20
AM</DIV>
<DIV style=3D"FONT: 10pt arial"><B>Subject:</B> RE: ECU6 board</DIV>
<DIV><BR></DIV>
<DIV><FONT color=3D#0000ff face=3DArial size=3D2><SPAN=20
class=3D030044601-17022000>Try a 470uf electrolytic cap. between =
ign. coil=20
positive and gnd.</SPAN></FONT></DIV>
<DIV><FONT color=3D#0000ff face=3DArial size=3D2><SPAN=20
class=3D030044601-17022000></SPAN></FONT> </DIV>
<DIV><FONT color=3D#0000ff face=3DArial size=3D2><SPAN=20
class=3D030044601-17022000>Al</SPAN></FONT></DIV>
<DIV><FONT color=3D#0000ff face=3DArial size=3D2><SPAN=20
class=3D030044601-17022000></SPAN></FONT> </DIV>
<BLOCKQUOTE=20
style=3D"BORDER-LEFT: #0000ff 2px solid; MARGIN-LEFT: 5px; =
MARGIN-RIGHT: 0px; PADDING-LEFT: 5px">
<DIV align=3Dleft class=3DOutlookMessageHeader dir=3Dltr><FONT =
face=3DTahoma=20
size=3D2>-----Original Message-----<BR><B>From:</B> Daniel [<A=20
=
href=3D"mailto:duagu at hotmail.com">mailto:duagu at hotmail.com</A>]<BR><B>Sen=
t:</B>=20
Wednesday, February 16, 2000 5:42 PM<BR><B>To:</B> Al=20
Lipper<BR><B>Subject:</B> Re: ECU6 board<BR><BR></DIV></FONT>
<DIV><FONT face=3DArial size=3D2>Hi Al,</FONT></DIV>
<DIV><FONT face=3DArial size=3D2>thanks for the advice, I think i =
will place a=20
capacitor in parallel between the battery and the ecu board, =
probably use=20
one of the spare capacitors i have lying around, maybe =
10uF.</FONT></DIV>
<DIV><FONT face=3DArial size=3D2>Daniel</FONT></DIV>
<BLOCKQUOTE=20
style=3D"BORDER-LEFT: #000000 2px solid; MARGIN-LEFT: 5px; =
MARGIN-RIGHT: 0px; PADDING-LEFT: 5px; PADDING-RIGHT: 0px">
<DIV style=3D"FONT: 10pt arial">----- Original Message ----- =
</DIV>
<DIV=20
style=3D"BACKGROUND: #e4e4e4; FONT: 10pt arial; font-color: =
black"><B>From:</B>=20
<A href=3D"mailto:efi at cardozo.org" title=3Defi at cardozo.org>Al =
Lipper</A>=20
</DIV>
<DIV style=3D"FONT: 10pt arial"><B>To:</B> <A=20
href=3D"mailto:duagu at hotmail.com" =
title=3Dduagu at hotmail.com>Daniel</A> ; <A=20
href=3D"mailto:diy_efi at efi332.eng.ohio-state.edu"=20
title=3Ddiy_efi at efi332.eng.ohio-state.edu>EFI</A> </DIV>
<DIV style=3D"FONT: 10pt arial"><B>Sent:</B> Wednesday, February =
16, 2000=20
4:52 AM</DIV>
<DIV style=3D"FONT: 10pt arial"><B>Subject:</B> RE: ECU6 =
board</DIV>
<DIV><BR></DIV>
<DIV><FONT color=3D#0000ff face=3DArial size=3D2><SPAN=20
class=3D750233304-16022000>Daniel,</SPAN></FONT></DIV>
<DIV><FONT color=3D#0000ff face=3DArial size=3D2><SPAN=20
class=3D750233304-16022000> I work for =
California=20
Polytechnic State University. Apart from that, our EFI =
company is=20
Injection Logic (<A=20
=
href=3D"http://www.injectionlogic.com">www.injectionlogic.com</A>) and=20
focuses on selling custom EFI system designs. ECU6 and =
ECU7 are=20
the result of the research from the products we market. I =
believe=20
that cooperation is the greatest way to increase knowledge and =
promote=20
development, so I have chosen to share most of the data on the =
systems=20
we design. The proprietary information generally has to do =
with=20
systems designed for a specific application. Even so, I =
try my=20
best to use what I've learned from that work to help people with =
questions. I'm very glad to hear of your progress with =
ECU6. =20
One caution, unless your vehicle's electrical system is VERY =
noise-free,=20
you will probably need some filtering on the power supply input, =
or it=20
may spontaneously reset (or report incorrect RPM, or fire the =
injectors=20
when it shouldn't). Good luck!</SPAN></FONT></DIV>
<DIV><FONT color=3D#0000ff face=3DArial size=3D2><SPAN=20
class=3D750233304-16022000></SPAN></FONT> </DIV>
<DIV><FONT color=3D#0000ff face=3DArial size=3D2><SPAN=20
class=3D750233304-16022000></SPAN></FONT> </DIV>
<DIV><FONT color=3D#0000ff face=3DArial size=3D2><SPAN=20
=
class=3D750233304-16022000> &nbs=
p; =20
Al</SPAN></FONT></DIV>
<DIV><FONT color=3D#0000ff face=3DArial size=3D2><SPAN=20
class=3D750233304-16022000></SPAN></FONT> </DIV>
<DIV><FONT color=3D#0000ff face=3DArial size=3D2><SPAN=20
class=3D750233304-16022000>P.S. Thanks for the=20
=
update.</SPAN></FONT></DIV></BLOCKQUOTE></BLOCKQUOTE></BLOCKQUOTE></BLOCK=
QUOTE></BODY></HTML>
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