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Fri, 26 Jun 2020 05:33:08 +0000 To: Rotary motors in aircraft Subject: Re: [FlyRotary] Re: SpeedUino Thread-Topic: [FlyRotary] Re: SpeedUino Thread-Index: AQHWS3FGhEXPfuYiKUq0JXxAJMH4OqjqXkon Date: Fri, 26 Jun 2020 05:33:08 +0000 Message-ID: References: In-Reply-To: Accept-Language: en-US Content-Language: en-US X-MS-Has-Attach: X-MS-TNEF-Correlator: authentication-results: lancaironline.net; dkim=none (message not signed) header.d=none;lancaironline.net; dmarc=none action=none header.from=uwyo.edu; x-originating-ip: [98.127.87.75] x-ms-publictraffictype: Email x-ms-office365-filtering-correlation-id: 4ca69c36-df5a-448c-f714-08d8199268d1 x-ms-traffictypediagnostic: CY4PR05MB3624: x-microsoft-antispam-prvs: x-ms-oob-tlc-oobclassifiers: OLM:8882; x-forefront-prvs: 0446F0FCE1 x-ms-exchange-senderadcheck: 1 x-microsoft-antispam: BCL:0; x-microsoft-antispam-message-info: DnwKFdDQHqacWe+CQdmlumYhx8Q4/P56yI5+s195V1fRsFLRxf77TKwnrcyWPp9Lro0SYp0ELQEoXuHwUbrvPxaRcOrEGembngikDcZ+mrsmeBatoEPSfFln7ZTwBUHhMPh99jrWb26yZn76keUNzAcFC4g/g4QRCGJMi7eEUQN3zplalIgQ6VwWiZGv2yQL5u77jWmpLEeEerL0NRpy83O9u4XBxEzjDazLIfdb8l/s2HqiNhsRS5xI8hIEOQRNyKDUChMo3Zn8p5OzRtloKlroo50rXezaraQlnNjTYxaZkY+vi89eWN4krmccBWM/H1rOVxde/wOY057JlEOJUA1RZc4Rfrjml21+czYfaDS41nAV0W2IVP8XU17O7IX6/d6Z1jK/V1V3suVbS5sHVQ== x-forefront-antispam-report: CIP:255.255.255.255;CTRY:;LANG:en;SCL:1;SRV:;IPV:NLI;SFV:NSPM;H:CY4PR05MB3384.namprd05.prod.outlook.com;PTR:;CAT:NONE;SFTY:;SFS:(4636009)(136003)(376002)(396003)(346002)(39860400002)(366004)(52536014)(53546011)(83380400001)(86362001)(6506007)(478600001)(8676002)(166002)(33656002)(19627405001)(2906002)(6916009)(8936002)(9686003)(66446008)(7696005)(66946007)(75432002)(5660300002)(64756008)(91956017)(7066003)(186003)(55016002)(66556008)(76116006)(786003)(66476007)(316002)(71200400001)(26005);DIR:OUT;SFP:1102; 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charset="iso-2022-jp" Content-Transfer-Encoding: quoted-printable Charlie, I changed the code in the Speediuno to use the TPS input to give manual mix= ture control from a potentiometer and it works fine, both with a Speedysim = board and with the actual running engine. Steve Boese ________________________________ From: Rotary motors in aircraft on behalf of = Charlie England ceengland7@gmail.com Sent: Thursday, June 25, 2020 10:21 PM To: Rotary motors in aircraft Subject: [FlyRotary] Re: SpeedUino =1B$B"!=1B(B This message was sent from a non-UWYO address. Please exercise= caution when clicking links or opening attachments from external sources. Yes, my idea would be an opamp confgured as a summing amplifier, with the w= ideband on one input and biasing voltage on the other. The TPS sounds simpler, if that will work. Charlie Sent from BlueMail On Jun 25, 2020, at 8:45 PM, "Steven W. Boese SBoese@uwyo.edu" > wrote: Charlie, The O2 sensor outputs a voltage but very little current. That would make i= t difficult to bias it in a predictable way. Biasing a buffered output suc= h as a wideband O2 unit output would probably work. Steve Boese On Jun 21, 2020, at 7:10 AM, Charlie England ceengland7@gmail.com > wrote: Any reason (other than the need to run 'closed loop' all the time) to not u= se a bias voltage added/subtracted from the O2 sensor output, to control mi= xture? Charlie --_000_CY4PR05MB3384A662F03FD2D4BDC05A0CB9930CY4PR05MB3384namp_ Content-Type: text/html; charset="iso-2022-jp" Content-Transfer-Encoding: quoted-printable
Charlie,

I changed the code in the Speediuno to use the TPS input to give manu= al mixture control from a potentiometer and it works fine, both with a Spee= dysim board and with the actual running engine.

Steve Boese

From: Rotary motors in airc= raft <flyrotary@lancaironline.net> on behalf of Charlie England ceeng= land7@gmail.com <flyrotary@lancaironline.net>
Sent: Thursday, June 25, 2020 10:21 PM
To: Rotary motors in aircraft <flyrotary@lancaironline.net> Subject: [FlyRotary] Re: SpeedUino
 

=1B$B"!=1B(B This me= ssage was sent from a non-UWYO address. Please exercise caution when clicki= ng links or opening attachments from external sources.


Yes, my idea would be an opamp confgured as a summing amp= lifier, with the wideband on one input and biasing voltage on the other.

The TPS sounds simpler, if that will work.

Charlie

Sent from = BlueMail
On Jun 25, 2020, at 8:45 PM, "Steven W. B= oese SBoese@uwyo.edu" <flyrotary@lancaironline.net> wrote:
Charlie,

The O2 sensor outputs a voltage but very l= ittle current.  That would make it difficult to bias it in a predictab= le way.  Biasing a buffered output such as a wideband O2 unit output w= ould probably work.

Steve Boese

On Jun 21, 2020, at 7:10 AM, Charlie England ceengland7@gmail.com <flyrotary@lancaironline.net> wrote:

Any reason (other = than the need to run 'closed loop' all the time) to not use a bias voltage = added/subtracted from the O2 sensor output, to control mixture?

Charlie
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