How is coil dwell calculated? Is there a table for this?

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Topic: How is coil dwell calculated? Is there a table for this? (Read 17194 times)

ta79pr

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	Re: How is coil dwell calculated? Is there a table for this? « Reply #15 on: March 16, 2012, 03:27:51 AM »

Could it be that the system has the ability, but it is simply not applied anywhere we see because it is only utilized in direct injection systems?


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jibberjive

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	Re: How is coil dwell calculated? Is there a table for this? « Reply #16 on: March 16, 2012, 07:12:39 AM »

I like the direction this is going. BTW, I might be waterjet cutting my own coil adapter plates, and might consider doing a bunch of them at the same time to hook some fellow NefMoto'ers up, if you guys would be interested.


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elRey

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	Re: How is coil dwell calculated? Is there a table for this? « Reply #17 on: March 16, 2012, 10:26:57 AM »

Quote from: phila_dot on March 15, 2012, 08:44:57 PM

Also, does anyone know the purpose of subfunction zuesz-band?
It's output to AZUE as well, but it's inactive due to CW-FUBND=0.

multi-spark ignition (multiple sparks per one cylinder ignition)


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phila_dot

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	Re: How is coil dwell calculated? Is there a table for this? « Reply #18 on: March 16, 2012, 11:17:08 AM »

Quote from: elRey on March 16, 2012, 10:26:57 AM

multi-spark ignition (multiple sparks per one cylinder ignition)

Yea, another quick glance this morning revealed "ME7 is configured for single spark and dual spark output".


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masterj

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	Re: How is coil dwell calculated? Is there a table for this? « Reply #19 on: March 16, 2012, 01:06:05 PM »

Quote from: nehalem on March 13, 2012, 04:22:23 PM

i can't answer this, but i did just complete the 2.0t ignition coil conversion. the car has never, not matter what I've done to it or how it's been tuned, been this smooth. i highly highly recommend doing the conversion or buying the 034 kit... i can't wait to check my gas mileage after 1000 miles.

Any tutorials how to do the 2.0t conversation? Wink


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elRey

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	Re: How is coil dwell calculated? Is there a table for this? « Reply #20 on: March 16, 2012, 01:17:32 PM »

Quote from: phila_dot on March 16, 2012, 11:17:08 AM

Yea, another quick glance this morning revealed "ME7 is configured for single spark and dual spark output".

Have you bothered to look closer at AZUE function notes? The more I look at it the more I hold to my previous statement.


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phila_dot

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	Re: How is coil dwell calculated? Is there a table for this? « Reply #21 on: March 16, 2012, 02:07:25 PM »

Quote from: elRey on March 16, 2012, 01:17:32 PM

Have you bothered to look closer at AZUE function notes? The more I look at it the more I hold to my previous statement.

Yea, I just got to the part that resembled what you were saying, but I had to run. I'm gonna have another look later.


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phila_dot

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	Re: How is coil dwell calculated? Is there a table for this? « Reply #22 on: March 16, 2012, 03:03:37 PM »

It looks like the maps I listed are for igniton range 1 (low engine speed). There is a hard switch to ignition range 2 when engine speed crosses the threshold SY_NZUEB.

It looks like the code is there for dual spark ignition. What pros and cons are there for this and what hardware changes would be required?


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phila_dot

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	Re: How is coil dwell calculated? Is there a table for this? « Reply #23 on: March 16, 2012, 10:46:59 PM »

Quote from: phila_dot on March 16, 2012, 03:03:37 PM

It looks like the code is there for dual spark ignition. What pros and cons are there for this and what hardware changes would be required?

It looks like this can be implemented without any hardware changes and could really benefit E85 cold starts at least.


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