How is KTZLR- Constant for model exhaust pipe volume calibrated ?

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ABCD

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	How is KTZLR- Constant for model exhaust pipe volume calibrated ? « on: July 11, 2012, 10:02:18 PM »

Hello folks,

What is KTZLR (Constant for model exhaust pipe volume)?

How this variable is calibrated and used?

My rough knowledge is that is used to calculate lambda control delay time...any info is appreciated.

Thanks
Aditya


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ABCD

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	Re: How is KTZLR- Constant for model exhaust pipe volume calibrated ? « Reply #1 on: July 18, 2012, 12:16:59 AM »

anybody


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TTQS

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	Re: How is KTZLR- Constant for model exhaust pipe volume calibrated ? « Reply #2 on: July 20, 2012, 01:14:43 AM »

Quote from: AK on July 11, 2012, 10:02:18 PM

What is KTZLR (Constant for model exhaust pipe volume)?
How this variable is calibrated and used?

I searched the English and German funktionsrahmens for this variable and couldn't find it. Can you give us any clue about where you've seen it and are you certain that the descriptor is correct?

TTQS


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ABCD

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	Re: How is KTZLR- Constant for model exhaust pipe volume calibrated ? « Reply #3 on: July 20, 2012, 01:30:45 AM »

Hi TTQS,

Have attached calculation of KTZLR


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TTQS

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	Re: How is KTZLR- Constant for model exhaust pipe volume calibrated ? « Reply #4 on: July 20, 2012, 08:16:06 AM »

As per other post in KUMSIRL, you seem to have a different funktionsrahmen than those we are familiar with at Nefmoto. I searched the ME7 FRs and the MED9.1 FR to no avail. Is this from an older or newer ECU than ME7? Please would you upload or otherwise make available your English language FR so that we can all get the benefit and see your information in its overall context. As it stands, you have an advantage over the people you are asking for help!

Thanks.

TTQS


« Last Edit: July 21, 2012, 11:26:30 AM by TTQS »	Logged

silentbob

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	Re: How is KTZLR- Constant for model exhaust pipe volume calibrated ? « Reply #5 on: July 22, 2012, 09:07:48 AM »

Quote from: AK on July 11, 2012, 10:02:18 PM

As described in the FR it's used to model the gas delay time on the exhaust side.
To calibrate this properly you need a ECU with online calibration access and a dyno to hold the engine in steady state.
Then simply give a jump on the injected fuel mass and measure the time till the lambda sensor sees the different mixture. Wink


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ABCD

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	Re: How is KTZLR- Constant for model exhaust pipe volume calibrated ? « Reply #6 on: August 19, 2012, 08:07:13 PM »

@ silentbob

Thanks, that clears my understanding !


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lulu2003

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	Re: How is KTZLR- Constant for model exhaust pipe volume calibrated ? « Reply #7 on: August 21, 2012, 04:57:05 AM »

Quote from: TTQS on July 20, 2012, 08:16:06 AM

Please would you upload or otherwise make available your English language FR so that we can all get the benefit and see your information in its overall context. As it stands, you have an advantage over the people you are asking for help!


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