X-Virus-Scanned: clean according to Sophos on Logan.com Return-Path: Received: from cdptpa-omtalb.mail.rr.com ([75.180.132.120] verified) by logan.com (CommuniGate Pro SMTP 6.0.1) with ESMTP id 6056115 for flyrotary@lancaironline.net; Mon, 11 Feb 2013 11:46:10 -0500 Received-SPF: pass receiver=logan.com; client-ip=75.180.132.120; envelope-from=eanderson@carolina.rr.com Return-Path: X-Authority-Analysis: v=2.0 cv=XL2yuHdE c=1 sm=0 a=g3L/TDsr+eNLfIieSKfGkw==:17 a=AHkS0RJitIMA:10 a=9uHq_uUnn0QA:10 a=05ChyHeVI94A:10 a=8nJEP1OIZ-IA:10 a=ayC55rCoAAAA:8 a=aUUwZgj14PQA:10 a=pedpZTtsAAAA:8 a=Ia-xEzejAAAA:8 a=HZJGGiqLAAAA:8 a=7g1VtSJxAAAA:8 a=oCcaPWc0AAAA:8 a=7YUlPfhaAuWCP8wjrRAA:9 a=wPNLvfGTeEIA:10 a=Qa1je4BO31QA:10 a=eJojReuL3h0A:10 a=EzXvWhQp4_cA:10 a=HeoGohOdMD0A:10 a=OnuoUyNRAI5225T2:21 a=eUM5RVhkDO47W_8x:21 a=AFu2oHiU-PIOz_ln:21 a=g3L/TDsr+eNLfIieSKfGkw==:117 X-Cloudmark-Score: 0 X-Authenticated-User: X-Originating-IP: 174.110.170.10 Received: from [174.110.170.10] ([174.110.170.10:50072] helo=EdPC) by cdptpa-oedge04.mail.rr.com (envelope-from ) (ecelerity 2.2.3.46 r()) with ESMTP id 1F/A5-25887-03029115; Mon, 11 Feb 2013 16:45:36 +0000 Message-ID: <191119421D4A43EF8E3017E94AEA2169@EdPC> From: "Ed Anderson" To: "Rotary motors in aircraft" References: In-Reply-To: Subject: Re: [FlyRotary] Re: Crickets & progress Date: Mon, 11 Feb 2013 11:45:36 -0500 MIME-Version: 1.0 Content-Type: text/plain; format=flowed; charset="iso-8859-1"; reply-type=original Content-Transfer-Encoding: 7bit X-Priority: 3 X-MSMail-Priority: Normal Importance: Normal X-Mailer: Microsoft Windows Live Mail 14.0.8117.416 X-MimeOLE: Produced By Microsoft MimeOLE V14.0.8117.416 Excellent point, Bill Getting slower in my years, yes, Your suggestion could be as simple as providing a choice on one of the menus. The code to display either the numeric value or and Air/Fuel Ratio along with a bar graph would not be that hard. Hopefully, the 0-5v output from all of those various after market Wide Band sensors would be similar. I'll dev into this in more detail Ed -------------------------------------------------- From: "Bill Bradburry" Sent: Monday, February 11, 2013 11:25 AM To: "Rotary motors in aircraft" Subject: [FlyRotary] Re: Crickets & progress > Ed, > You would not have to supply an O2 sensor with your EFISM. You could just > make it accept either the 0-1, or 0-5v input. The customer could decide > which O2 sensor they wanted to use. > > Bill > > -----Original Message----- > From: Rotary motors in aircraft [mailto:flyrotary@lancaironline.net] On > Behalf Of Ed Anderson > Sent: Monday, February 11, 2013 10:50 AM > To: Rotary motors in aircraft > Subject: [FlyRotary] Re: Crickets & progress > > Thanks, Steve > > I'll see if I can find out more about it. Ideally for my EFISM, I would > like to just have the 0- 5 volt input to deal with. An easy mod to the > code > > with just that, but if I have to do the PID control for temps then that > simply amounts to too much to incorporate into the code (or color me too > lazy {:>)) > > Ed > > -------------------------------------------------- > From: "Steven W. Boese" > Sent: Monday, February 11, 2013 9:53 AM > To: "Rotary motors in aircraft" > Subject: [FlyRotary] Re: Crickets & progress > >> Ed, >> >> The upstream sensor on the newer RX8's is called out as an air/fuel >> sensor > >> as opposed to the downstream sensor which is specified as an O2 sensor. >> The mark on this upstream sensor is Denso 09M27-4350. The Denso catalog >> number is 234-9059. It is a four wire sensor with two of the wires >> apparently for a heater like a heated O2 sensor. The output has a 5V >> range from what I could find out. So far, I have not been able to find >> more specifics on this sensor, but it is possible that it is capable of a >> more useful signal than the rapidly changing Nernstian signal of a >> conventional O2 sensor when the mixture is stochiometric. The sensor is >> more expensive than the universal Bosch 11027 O2 sensor, but the Renesis >> engine I got came with this upstream air/fuel sensor still installed in >> the exhaust manifold. If others have this sensor also, it is a >> possibility that it could be used with minimal added expense. Someone >> with details of the RX8 emission system might be able to shed some light >> on this. >> >> Steve Boese >> RV6A, 1986 13B NA, RD1A, EC2 >> >> ________________________________________ >> From: Rotary motors in aircraft [flyrotary@lancaironline.net] on behalf >> of > >> Ed Anderson [eanderson@carolina.rr.com] >> Sent: Monday, February 11, 2013 5:27 AM >> To: Rotary motors in aircraft >> Subject: [FlyRotary] Re: Crickets & progress >> >> Thanks for the suggestion, Ernest >> >> However, the cost of the wideband sensor kits I found approach (or are >> more >> than) the total cost of the EFISM - so not feasible marketing wise. But, >> who knows - there are a bunch of them out there and I have not done an >> exhaustive search - yet. >> >> Ed >> >> -------------------------------------------------- >> From: "Ernest Christley" >> Sent: Sunday, February 10, 2013 8:07 PM >> To: "Rotary motors in aircraft" >> Subject: [FlyRotary] Re: Crickets & progress >> >>> >>> On Feb 9, 2013, at 6:27 PM, Ed Anderson wrote: >>> >>>> Great to hear about your move to the wide band O2 sensor, Tracy. >>>> >>>> I looked into modifying the EFISM to do the same, but found the PID >>>> control supposedly necessary to precisely control the heater element of >>>> the wide band sensor to be much more complex than simply extending the >>>> voltage range to interpret the WB output. Did you embed any PID >>>> control >>>> elements in the EC3 for temperature control - or just accepted any >>>> small? >>>> error associated with temp variations? >>>> >>>> Ed >>> >>> Ed, look at the LS1 line of Innovate sideband sensors. They have their >>> own computer that controls the heater, and it just puts out a 0-5V >>> corresponding to the F/A mixture. >>> -- >>> Homepage: http://www.flyrotary.com/ >>> Archive and UnSub: >>> http://mail.lancaironline.net:81/lists/flyrotary/List.html >>> >>> >>> ----- >>> No virus found in this message. >>> Checked by AVG - www.avg.com >>> Version: 2013.0.2897 / Virus Database: 2639/6087 - Release Date: >>> 02/07/13 >>> >>> >> >> -- >> Homepage: http://www.flyrotary.com/ >> Archive and UnSub: >> http://mail.lancaironline.net:81/lists/flyrotary/List.html >> -- >> Homepage: http://www.flyrotary.com/ >> Archive and UnSub: >> http://mail.lancaironline.net:81/lists/flyrotary/List.html >> >> >> ----- >> No virus found in this message. >> Checked by AVG - www.avg.com >> Version: 2013.0.2897 / Virus Database: 2639/6087 - Release Date: 02/07/13 >> >> > > -- > Homepage: http://www.flyrotary.com/ > Archive and UnSub: > http://mail.lancaironline.net:81/lists/flyrotary/List.html > > > -- > Homepage: http://www.flyrotary.com/ > Archive and UnSub: > http://mail.lancaironline.net:81/lists/flyrotary/List.html > > > ----- > No virus found in this message. > Checked by AVG - www.avg.com > Version: 2013.0.2897 / Virus Database: 2639/6087 - Release Date: 02/07/13 >