X-Virus-Scanned: clean according to Sophos on Logan.com Return-Path: Received: from EXHUB003-2.exch003intermedia.net ([207.5.74.29] verified) by logan.com (CommuniGate Pro SMTP 5.4c2) with ESMTPS id 4902309 for flyrotary@lancaironline.net; Thu, 10 Mar 2011 16:12:27 -0500 Received-SPF: none receiver=logan.com; client-ip=207.5.74.29; envelope-from=jwhaley@datacast.com Received: from EXVMBX003-5.exch003intermedia.net ([207.5.74.45]) by EXHUB003-2.exch003intermedia.net ([207.5.74.29]) with mapi; Thu, 10 Mar 2011 13:11:52 -0800 From: Jeff Whaley To: 'Rotary motors in aircraft' Date: Thu, 10 Mar 2011 13:12:07 -0800 Subject: Re: More staging and tuning Thread-Topic: More staging and tuning Thread-Index: AcvfQl3nTGCzhDjxQjSs9ZCYRPSS6AAIupGQ Message-ID: Accept-Language: en-US Content-Language: en-US X-MS-Has-Attach: yes X-MS-TNEF-Correlator: acceptlanguage: en-US Content-Type: multipart/related; boundary="_005_C03ABB0A7362B84BB53D544B3C305E0E0179F8246DB1EXVMBX0035e_"; type="multipart/alternative" MIME-Version: 1.0 --_005_C03ABB0A7362B84BB53D544B3C305E0E0179F8246DB1EXVMBX0035e_ Content-Type: multipart/alternative; boundary="_000_C03ABB0A7362B84BB53D544B3C305E0E0179F8246DB1EXVMBX0035e_" --_000_C03ABB0A7362B84BB53D544B3C305E0E0179F8246DB1EXVMBX0035e_ Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: quoted-printable Steve, I chose not to tune the EC2 that way (using either mode 6, or 2) for= that exact reason - I couldn't tell what the computer was doing. If the method works, I suppose one could argue who cares - I certainly don'= t know what the table looks like for my Ford Escape. I used Mode 3 to set injector flow rate (above staging) as per the manual, = then made manual adjustments to every data point using Mode 1 - the result = is my MCT table looks like a saw-tooth waveform, i.e., 2 non-linear rising = slopes either side of staging with an obvious correction just above staging= . I may try your method - I can always go back to what I have now - Ed's litt= le device makes it pretty easy to do MCT entries. Jeff From: "Steven W. Boese" Subject: RE: [FlyRotary] Re: More staging and tuning Date: Thu, 10 Mar 2011 10:35:14 -0700 To: Rotary motors in aircraft [cid:image001.gif@01CBDF3C.216B67F0] [cid:image002.gif@01CBDF3C.216B67F0] Jeff, I have been using the default MCT with no changes. You are correct about the effect of the different modes on the MCT. That l= ast sentence could have been worded better: The only difference in using the second method is that just a few minor co= rrections (if any) to the default table seem to be needed after these initi= al two or three adjustments. Steve From: Jeff Whaley Sent: Thursday, March 10, 2011 11:44 AM To: 'Rotary motors in aircraft' Subject: Re: More staging and tuning Steve, or Bill: When using the "simplified" #2 method (restore defaults, mode 3 below stagi= ng, mode 6 above staging, mode 2 at idle, then mode 1 or 9) what does your = resulting MCT table look like? Is it simply a flat line at or near zero (de= fault) for all data points? As I understand it the EC2 will not change MCT displayed values when using = Modes 3, 6 or 2 ... but will start showing MCT corrections with Modes 1 or= 9. Jeff From: "Steven W. Boese" Subject: RE: [FlyRotary] Re: more staging and tuning Date: Thu, 10 Mar 2011 01:13:29 -0700 To: Rotary motors in aircraft [cid:image001.gif@01CBDF3C.216B67F0] [cid:image002.gif@01CBDF3C.216B67F0] Al, I apologize for the long posts. In my opinion, the short answer to your question is YES. The EC2 has the versatility to be tuned in a number of ways. It appears to= me, at least, that a significant part of the MCT corrections needed is the= result of injector lag time. There are at least two ways of dealing with = this. One is to experimentally determine this for each address in the table. Thi= s can be difficult since there are a lot of addresses and the corrections c= an be very different for adjacent addresses. In addition, some of this tun= ing can only be done in flight. Some users have more difficulty with this = than others. This may be because of the individual user or the individual = equipment configuration or both. At any rate, it seems to be a recurrent p= roblem. A second way to deal with injector lag is by including it in the calculatio= n of the injector pulse width. Doing so removes much of the MCT adjustment= s that are needed throughout the table and also removes the discontinuities= . This calculation is not difficult as demonstrated by the effectiveness o= f the hardware addition that I made which has no intelligence. Either method requires adjustments with modes 2,3 and, in some cases, 6. T= he only difference in using the second method is that the entire table is n= early correct after these initial two or three adjustments. Steve __________ Information from ESET NOD32 Antivirus, version of virus signatur= e database 5943 (20110310) __________ The message was checked by ESET NOD32 Antivirus. http://www.eset.com This message, and the documents attached hereto, is intended only for the a= ddressee and may contain privileged or confidential information. Any unauth= orized disclosure is strictly prohibited. If you have received this message= in error, please notify us immediately so that we may correct our internal= records. Please then delete the original message. Thank you. --_000_C03ABB0A7362B84BB53D544B3C305E0E0179F8246DB1EXVMBX0035e_ Content-Type: text/html; charset="us-ascii" Content-Transfer-Encoding: quoted-printable

Steve, I chose not to = tune the EC2 that way (using either mode 6, or 2) for that exact reason -&n= bsp; I couldn’t tell what the computer was doing.

If the method works, I= suppose one could argue who cares – I certainly don’t know wha= t the table looks like for my Ford Escape.

I used Mode 3 to set i= njector flow rate (above staging) as per the manual, then made manual adjus= tments to every data point using Mode 1 – the result is my MCT table = looks like a saw-tooth waveform, i.e., 2 non-linear rising slopes either side of staging with an obvious correction just above= staging.

I may try your method = – I can always go back to what I have now – Ed’s little d= evice makes it pretty easy to do MCT entries.

Jeff=

 

From:

"Steven W. Boese" <SBoese@u= wyo.edu>

Subject:

RE: [FlyRotary] Re: More staging and tun= ing

Date:

Thu, 10 Mar 2011 10:35:14 -0700

To:

Rotary motors in aircraft <flyrotary@= lancaironline.net>

3D"Message

3D"Undecoded

Jeff,

I have been using the default MCT with no changes.=

You are correct about the effect of the different = modes on the MCT.  That last sentence could have been worded better:

The only difference in using the second method is = that  just a few minor corrections (if any) to the default table seem to be needed after these initial two or three adjustments.=

Steve

 

 

 

From: Jeff Wha= ley
Sent: Thursday, March 10, 2011 11:44 AM
To: 'Rotary motors in aircraft'
Subject: Re: More staging and tuning

 

Steve, or Bill:

When using the “simplified” #2 method (r= estore defaults, mode 3 below staging, mode 6 above staging, mode 2 at idle= , then mode 1 or 9) what does your resulting MCT table look like? Is it sim= ply a flat line at or near zero (default) for all data points?

As I understand it the EC2 will not change MCT displ= ayed values when using Modes 3, 6 or 2 … but will start showing  = ;MCT corrections with Modes 1 or 9.

Jeff

 

From:

"Steven W. Boese" <SBoese@u= wyo.edu>

Subject:

RE: [FlyRotary] Re: more staging and tun= ing

Date:

Thu, 10 Mar 2011 01:13:29 -0700

To:

Rotary motors in aircraft <flyrotary@= lancaironline.net>

3D"Message

3D"Undecoded

Al,

I apologize for the long posts.<= /p>

In my opinion, the short answer to your question i= s YES.

The EC2 has the versatility to be tuned in a numbe= r of ways.  It appears to me, at least, that a significant part of the MCT corrections needed is the result of injector lag time. &nb= sp;There are at least two ways of dealing with this. 

One is to experimentally determine this for each a= ddress in the table.  This can be difficult since there are a lot of addresses and the corrections can be very different for adjacent = addresses.  In addition, some of this tuning can only be done in fligh= t.  Some users have more difficulty with this than others.  This = may be because of the individual user or the individual equipment configuration or both.  At any rate, it seems to be a recur= rent problem.

A second way to deal with injector lag is by inclu= ding it in the calculation of the injector pulse width.  Doing so removes much of the MCT adjustments that are needed throughout the tabl= e and also removes the discontinuities.  This calculation is not diffi= cult as demonstrated by the effectiveness of the hardware addition that I m= ade which has no intelligence. 

Either method requires adjustments with modes 2,3 = and, in some cases, 6.  The only difference in using the second method is that the entire table is nearly correct after these initial two = or three adjustments.

Steve

 

 



__________ Information from ESET NOD32 Antivirus, version of virus signatur= e database 5943 (20110310) __________

The message was checked by ESET NOD32 Antivirus.

http://www.eset.com

This message, and the docum= ents attached hereto, is intended only for the addressee and may contain pr= ivileged or confidential information. Any unauthorized disclosure is strict= ly prohibited. If you have received this message in error, please notify us immediately so that we may correct our = internal records. Please then delete the original message. Thank you.
 --_000_C03ABB0A7362B84BB53D544B3C305E0E0179F8246DB1EXVMBX0035e_-- --_005_C03ABB0A7362B84BB53D544B3C305E0E0179F8246DB1EXVMBX0035e_ Content-Type: image/gif; name="image001.gif" Content-Description: image001.gif Content-Disposition: inline; filename="image001.gif"; size=849; creation-date="Thu, 10 Mar 2011 13:11:51 GMT"; modification-date="Thu, 10 Mar 2011 13:11:51 GMT" Content-ID: Content-Transfer-Encoding: base64 R0lGODdhCgANAPcAAAAAAIAAAACAAICAAAAAgIAAgACAgMDAwMDcwKbK8AAAAAAAKgAAVQAAfwAA qgAA1AAqAAAqKgAqVQAqfwAqqgAq1ABVAABVKgBVVQBVfwBVqgBV1AB/AAB/KgB/VQB/fwB/qgB/ 1ACqAACqKgCqVQCqfwCqqgCq1ADUAADUKgDUVQDUfwDUqgDU1CoAACoAKioAVSoAfyoAqioA1Coq ACoqKioqVSoqfyoqqioq1CpVACpVKipVVSpVfypVqipV1Cp/ACp/Kip/VSp/fyp/qip/1CqqACqq KiqqVSqqfyqqqiqq1CrUACrUKirUVSrUfyrUqirU1FUAAFUAKlUAVVUAf1UAqlUA1FUqAFUqKlUq VVUqf1UqqlUq1FVVAFVVKlVVVVVVf1VVqlVV1FV/AFV/KlV/VVV/f1V/qlV/1FWqAFWqKlWqVVWq f1WqqlWq1FXUAFXUKlXUVVXUf1XUqlXU1H8AAH8AKn8AVX8Af38Aqn8A1H8qAH8qKn8qVX8qf38q qn8q1H9VAH9VKn9VVX9Vf39Vqn9V1H9/AH9/Kn9/VX9/f39/qn9/1H+qAH+qKn+qVX+qf3+qqn+q 1H/UAH/UKn/UVX/Uf3/Uqn/U1KoAAKoAKqoAVaoAf6oAqqoA1KoqAKoqKqoqVaoqf6oqqqoq1KpV AKpVKqpVVapVf6pVqqpV1Kp/AKp/Kqp/Vap/f6p/qqp/1KqqAKqqKqqqVaqqf6qqqqqq1KrUAKrU KqrUVarUf6rUqqrU1NQAANQAKtQAVdQAf9QAqtQA1NQqANQqKtQqVdQqf9QqqtQq1NRVANRVKtRV VdRVf9RVqtRV1NR/ANR/KtR/VdR/f9R/qtR/1NSqANSqKtSqVdSqf9SqqtSq1NTUANTUKtTUVdTU f9TUqtTU1AAAAAwMDBkZGSYmJjMzMz8/P0xMTFlZWWZmZnJycn9/f4yMjJmZmaWlpbKysr+/v8zM zNjY2OXl5fLy8v/78KCgpICAgP8AAAD/AP//AAAA//8A/wD//////ywAAAAACgANAAAINgDxCRw4 EAC+fwgTIjT4DwCAAwIXHlSYkKHDhxEZUpTYEONEjRstOoR4ECRFkSQ5bux4saXDgAA7 --_005_C03ABB0A7362B84BB53D544B3C305E0E0179F8246DB1EXVMBX0035e_ Content-Type: image/gif; name="image002.gif" Content-Description: image002.gif Content-Disposition: inline; filename="image002.gif"; size=857; creation-date="Thu, 10 Mar 2011 13:11:51 GMT"; modification-date="Thu, 10 Mar 2011 13:11:51 GMT" Content-ID: Content-Transfer-Encoding: base64 R0lGODdhCgANAPcAAAAAAIAAAACAAICAAAAAgIAAgACAgMDAwMDcwKbK8AAAAAAAKgAAVQAAfwAA qgAA1AAqAAAqKgAqVQAqfwAqqgAq1ABVAABVKgBVVQBVfwBVqgBV1AB/AAB/KgB/VQB/fwB/qgB/ 1ACqAACqKgCqVQCqfwCqqgCq1ADUAADUKgDUVQDUfwDUqgDU1CoAACoAKioAVSoAfyoAqioA1Coq ACoqKioqVSoqfyoqqioq1CpVACpVKipVVSpVfypVqipV1Cp/ACp/Kip/VSp/fyp/qip/1CqqACqq KiqqVSqqfyqqqiqq1CrUACrUKirUVSrUfyrUqirU1FUAAFUAKlUAVVUAf1UAqlUA1FUqAFUqKlUq VVUqf1UqqlUq1FVVAFVVKlVVVVVVf1VVqlVV1FV/AFV/KlV/VVV/f1V/qlV/1FWqAFWqKlWqVVWq f1WqqlWq1FXUAFXUKlXUVVXUf1XUqlXU1H8AAH8AKn8AVX8Af38Aqn8A1H8qAH8qKn8qVX8qf38q qn8q1H9VAH9VKn9VVX9Vf39Vqn9V1H9/AH9/Kn9/VX9/f39/qn9/1H+qAH+qKn+qVX+qf3+qqn+q 1H/UAH/UKn/UVX/Uf3/Uqn/U1KoAAKoAKqoAVaoAf6oAqqoA1KoqAKoqKqoqVaoqf6oqqqoq1KpV AKpVKqpVVapVf6pVqqpV1Kp/AKp/Kqp/Vap/f6p/qqp/1KqqAKqqKqqqVaqqf6qqqqqq1KrUAKrU KqrUVarUf6rUqqrU1NQAANQAKtQAVdQAf9QAqtQA1NQqANQqKtQqVdQqf9QqqtQq1NRVANRVKtRV VdRVf9RVqtRV1NR/ANR/KtR/VdR/f9R/qtR/1NSqANSqKtSqVdSqf9SqqtSq1NTUANTUKtTUVdTU f9TUqtTU1AAAAAwMDBkZGSYmJjMzMz8/P0xMTFlZWWZmZnJycn9/f4yMjJmZmaWlpbKysr+/v8zM zNjY2OXl5fLy8v/78KCgpICAgP8AAAD/AP//AAAA//8A/wD//////ywAAAAACgANAAAIPgDxCRw4 EAC+fwcQKjxgMCHDhAD+GUQYEcDDhhIzVjwIkSJDfA8zQjxYUWRDixVHmnSI0aHCiS5ZAphJs2ZA ADs= --_005_C03ABB0A7362B84BB53D544B3C305E0E0179F8246DB1EXVMBX0035e_--