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</o:shapelayout></xml><![endif]--></head><body lang=EN-US link=blue vlink=purple><div class=WordSection1><p class=MsoNormal><span style='font-size:12.0pt'>Hi Robert,<o:p></o:p></span></p><p class=MsoNormal><span style='font-size:12.0pt'><o:p> </o:p></span></p><p class=MsoNormal><span style='font-size:12.0pt'>I believe most of what you want is already built into OVMS through the Advanced Charge Control feature, at least for vehicles that have implemented a charge time predictor.<o:p></o:p></span></p><p class=MsoNormal><span style='font-size:12.0pt'><o:p> </o:p></span></p><p class=MsoNormal><span style='font-size:12.0pt'>In OVMS v2 this was configured via text message. For example this command:<o:p></o:p></span></p><p class=MsoNormal><span style='font-size:12.0pt'><o:p> </o:p></span></p><p class=MsoNormal><span style='font-size:12.0pt'>ACC PARAMS CHARGEBY 07:00 STOPSOC 60<o:p></o:p></span></p><p class=MsoNormal><span style='font-size:12.0pt'><o:p> </o:p></span></p><p class=MsoNormal><span style='font-size:12.0pt'>tells OVMS that when plugged in at the current location, it should delay charging until charging to 60% state-of-charge will be achieved around 7:00 am.<o:p></o:p></span></p><p class=MsoNormal><span style='font-size:12.0pt'><o:p> </o:p></span></p><p class=MsoNormal><span style='font-size:12.0pt'>As far as I know, there isn’t currently a notion of a minimum SOC that should be achieved ASAP upon plug in. I’m not sure that’s a big deal unless you regularly plug in with SOC below 10%. For example, the Tesla Roadster has a storage mode that holds charge at around 25% for long term storage.<o:p></o:p></span></p><p class=MsoNormal><span style='font-size:12.0pt'><o:p> </o:p></span></p><p class=MsoNormal><span style='font-size:12.0pt'>There is a possible downside with using OVMS to limit the state of charge. Some electric vehicles, perhaps most, perform a pack leveling operation at the end of charging. If OVMS is used to stop charging early, that pack leveling will not happen.<o:p></o:p></span></p><p class=MsoNormal><span style='font-size:12.0pt'><o:p> </o:p></span></p><p class=MsoNormal><span style='font-size:12.0pt'> Tom<o:p></o:p></span></p><p class=MsoNormal><span style='font-size:12.0pt'><o:p> </o:p></span></p><div style='border:none;border-top:solid #B5C4DF 1.0pt;padding:3.0pt 0in 0in 0in'><p class=MsoNormal style='margin-left:.5in'><b><span style='font-size:12.0pt;color:black'>From: </span></b><span style='font-size:12.0pt;color:black'><ovmsdev-bounces@lists.teslaclub.hk> on behalf of Robert Sharpe <robert.sharpe@evergreen-consulting.co.uk><br><b>Reply-To: </b>OVMS Developers <ovmsdev@lists.teslaclub.hk><br><b>Date: </b>Thursday, February 15, 2018 at 9:13 AM<br><b>To: </b>OVMS Developers <ovmsdev@lists.teslaclub.hk><br><b>Subject: </b>[Ovmsdev] Prolonging traction battery life feature<o:p></o:p></span></p></div><div><p class=MsoNormal style='margin-left:.5in'><o:p> </o:p></p></div><div><div><p class=MsoNormal style='margin-left:.5in'><a name="_MailOriginalBody"><span style='font-size:10.0pt;font-family:"Verdana",sans-serif'>Hi All,<o:p></o:p></span></a></p></div><div><p class=MsoNormal style='margin-left:.5in'><span style='mso-bookmark:_MailOriginalBody'><span style='font-size:10.0pt;font-family:"Verdana",sans-serif'><o:p> </o:p></span></span></p></div><div><p class=MsoNormal style='margin-left:.5in'><span style='mso-bookmark:_MailOriginalBody'><span style='font-size:10.0pt;font-family:"Verdana",sans-serif'>I have an idea that will help prolong the life of EV batteries and maximise vehicle resale value.<o:p></o:p></span></span></p></div><div><p class=MsoNormal style='margin-left:.5in'><span style='mso-bookmark:_MailOriginalBody'><span style='font-size:10.0pt;font-family:"Verdana",sans-serif'><o:p> </o:p></span></span></p></div><div><p class=MsoNormal style='margin-left:.5in'><span style='mso-bookmark:_MailOriginalBody'><span style='font-size:10.0pt;font-family:"Verdana",sans-serif'>In summary it involves implementing intelligent charging that keeps the battery at 50% (the best soc for long term storage) for as long a possible and minimises depth of charge and discharge. For example<o:p></o:p></span></span></p></div><div><p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto;margin-left:1.0in;text-indent:-.25in;mso-list:l0 level1 lfo1'><span style='mso-bookmark:_MailOriginalBody'><![if !supportLists]><span style='font-size:10.0pt;font-family:Symbol'><span style='mso-list:Ignore'>·<span style='font:7.0pt "Times New Roman"'> </span></span></span><![endif]><span style='font-size:10.0pt;font-family:"Verdana",sans-serif'>as soon as you get to a charge point (eg home or work), the OVMS will detect if it is below 50% and charge it until 50% is achieved<o:p></o:p></span></span></p><p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto;margin-left:1.0in;text-indent:-.25in;mso-list:l0 level1 lfo1'><span style='mso-bookmark:_MailOriginalBody'><![if !supportLists]><span style='font-size:10.0pt;font-family:Symbol'><span style='mso-list:Ignore'>·<span style='font:7.0pt "Times New Roman"'> </span></span></span><![endif]><span style='font-size:10.0pt;font-family:"Verdana",sans-serif'>the OVMS will be told the minimum required soc and when this should be achieved<o:p></o:p></span></span></p><p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto;margin-left:1.0in;text-indent:-.25in;mso-list:l0 level1 lfo1'><span style='mso-bookmark:_MailOriginalBody'><![if !supportLists]><span style='font-size:10.0pt;font-family:Symbol'><span style='mso-list:Ignore'>·<span style='font:7.0pt "Times New Roman"'> </span></span></span><![endif]><span style='font-size:10.0pt;font-family:"Verdana",sans-serif'>it will then wait until the last moment to start charging to achieving the required min soc<o:p></o:p></span></span></p><p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto;margin-left:1.0in;text-indent:-.25in;mso-list:l0 level1 lfo1'><span style='mso-bookmark:_MailOriginalBody'><![if !supportLists]><span style='font-size:10.0pt;font-family:Symbol'><span style='mso-list:Ignore'>·<span style='font:7.0pt "Times New Roman"'> </span></span></span><![endif]><span style='font-size:10.0pt;font-family:"Verdana",sans-serif'>a later version could receive a notification from your Google calendar with required mileage via IFTT, etc<o:p></o:p></span></span></p></div><div><p class=MsoNormal style='margin-left:.5in'><span style='mso-bookmark:_MailOriginalBody'><span style='font-size:10.0pt;font-family:"Verdana",sans-serif'>Unfortunately, I don't have the coding skills to implement it but would be happy to do all the non-coding stuff like requirements, design, documentation, testing, etc.<o:p></o:p></span></span></p></div><div><p class=MsoNormal style='margin-left:.5in'><span style='mso-bookmark:_MailOriginalBody'><span style='font-size:10.0pt;font-family:"Verdana",sans-serif'><o:p> </o:p></span></span></p></div><div><p class=MsoNormal style='margin-left:.5in'><span style='mso-bookmark:_MailOriginalBody'><span style='font-size:10.0pt;font-family:"Verdana",sans-serif'>If this sounds interesting and you would like to find out more please feel free to get back to me for a chat.<o:p></o:p></span></span></p></div><div><p class=MsoNormal style='margin-left:.5in'><span style='mso-bookmark:_MailOriginalBody'><span style='font-size:10.0pt;font-family:"Verdana",sans-serif'><o:p> </o:p></span></span></p><div id=""><div><div><p style='margin-left:.5in;background:white'><span style='mso-bookmark:_MailOriginalBody'><span style='font-size:12.0pt'>Regards,<br>Robert Sharpe (Managing Director)<br>07711 252971<br></span></span><span style='mso-bookmark:_MailOriginalBody'><span style='font-size:13.5pt'>Skype: arsharpe</span></span><span style='mso-bookmark:_MailOriginalBody'><span style='font-size:10.0pt;font-family:"Verdana",sans-serif'><o:p></o:p></span></span></p><p style='margin-left:.5in;background:white'><span style='mso-bookmark:_MailOriginalBody'></span><a 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style='mso-bookmark:_MailOriginalBody'></span></a><span style='mso-bookmark:_MailOriginalBody'><span style='font-size:10.0pt;font-family:"Verdana",sans-serif'><o:p></o:p></span></span></p><p style='margin-left:.5in;background:white'><span style='mso-bookmark:_MailOriginalBody'><i><span style='font-size:18.0pt'>Your Plugged-in Partner</span></i></span><span style='mso-bookmark:_MailOriginalBody'><span style='font-size:10.0pt;font-family:"Verdana",sans-serif'><o:p></o:p></span></span></p><p style='margin-left:.5in;background:white'><span style='mso-bookmark:_MailOriginalBody'><span style='font-size:10.0pt'>Evergreen Consulting is the trading name of Sharpe Consultants Ltd</span></span><span style='mso-bookmark:_MailOriginalBody'><span style='font-size:10.0pt;font-family:"Verdana",sans-serif'><o:p></o:p></span></span></p></div></div></div></div></div><p class=MsoNormal style='margin-left:.5in'><span style='mso-bookmark:_MailOriginalBody'><br>_______________________________________________ OvmsDev mailing list OvmsDev@lists.teslaclub.hk http://lists.teslaclub.hk/mailman/listinfo/ovmsdev </span><o:p></o:p></p></div></body></html>