<html><head><meta http-equiv="Content-Type" content="text/html charset=utf-8"></head><body style="word-wrap: break-word; -webkit-nbsp-mode: space; -webkit-line-break: after-white-space;" class=""><div class=""><br class=""></div><div class="">I think overall, it should be a goal of the scripting system to be able to cope with scenarios/requirements like this.</div><div class=""><br class=""></div><div class=""><blockquote type="cite" class=""><div class="WordSection1" style="page: WordSection1;"><div class="" style="margin: 0in 0in 0.0001pt; font-size: 11pt; font-family: Calibri, sans-serif;"><span class="" style="font-size: 12pt;">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.</span></div></div></blockquote><br class=""></div><div class="">This was my concern. I used to use ACC to maintain my battery, but it seemed to go out of balance when stopping charge below 100% (standard mode).</div><div class=""><br class=""></div>Regards, Mark.<div class=""><br class=""><div><blockquote type="cite" class=""><div class="">On 16 Feb 2018, at 11:19 AM, Tom Saxton <<a href="mailto:tom@idleloop.com" class="">tom@idleloop.com</a>> wrote:</div><br class="Apple-interchange-newline"><div class=""><div class="WordSection1" style="page: WordSection1; font-family: Helvetica; font-size: 18px; font-style: normal; font-variant-caps: normal; font-weight: normal; letter-spacing: normal; text-align: start; text-indent: 0px; text-transform: none; white-space: normal; word-spacing: 0px; -webkit-text-stroke-width: 0px;"><div style="margin: 0in 0in 0.0001pt; font-size: 11pt; font-family: Calibri, sans-serif;" class=""><span style="font-size: 12pt;" class="">Hi Robert,<o:p class=""></o:p></span></div><div style="margin: 0in 0in 0.0001pt; font-size: 11pt; font-family: Calibri, sans-serif;" class=""><span style="font-size: 12pt;" class=""><o:p class=""> </o:p></span></div><div style="margin: 0in 0in 0.0001pt; font-size: 11pt; font-family: Calibri, sans-serif;" class=""><span style="font-size: 12pt;" class="">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 class=""></o:p></span></div><div style="margin: 0in 0in 0.0001pt; font-size: 11pt; font-family: Calibri, sans-serif;" class=""><span style="font-size: 12pt;" class=""><o:p class=""> </o:p></span></div><div style="margin: 0in 0in 0.0001pt; font-size: 11pt; font-family: Calibri, sans-serif;" class=""><span style="font-size: 12pt;" class="">In OVMS v2 this was configured via text message. For example this command:<o:p class=""></o:p></span></div><div style="margin: 0in 0in 0.0001pt; font-size: 11pt; font-family: Calibri, sans-serif;" class=""><span style="font-size: 12pt;" class=""><o:p class=""> </o:p></span></div><div style="margin: 0in 0in 0.0001pt; font-size: 11pt; font-family: Calibri, sans-serif;" class=""><span style="font-size: 12pt;" class="">ACC PARAMS CHARGEBY 07:00 STOPSOC 60<o:p class=""></o:p></span></div><div style="margin: 0in 0in 0.0001pt; font-size: 11pt; font-family: Calibri, sans-serif;" class=""><span style="font-size: 12pt;" class=""><o:p class=""> </o:p></span></div><div style="margin: 0in 0in 0.0001pt; font-size: 11pt; font-family: Calibri, sans-serif;" class=""><span style="font-size: 12pt;" class="">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 class=""></o:p></span></div><div style="margin: 0in 0in 0.0001pt; font-size: 11pt; font-family: Calibri, sans-serif;" class=""><span style="font-size: 12pt;" class=""><o:p class=""> </o:p></span></div><div style="margin: 0in 0in 0.0001pt; font-size: 11pt; font-family: Calibri, sans-serif;" class=""><span style="font-size: 12pt;" class="">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 class=""></o:p></span></div><div style="margin: 0in 0in 0.0001pt; font-size: 11pt; font-family: Calibri, sans-serif;" class=""><span style="font-size: 12pt;" class=""><o:p class=""> </o:p></span></div><div style="margin: 0in 0in 0.0001pt; font-size: 11pt; font-family: Calibri, sans-serif;" class=""><span style="font-size: 12pt;" class="">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 class=""></o:p></span></div><div style="margin: 0in 0in 0.0001pt; font-size: 11pt; font-family: Calibri, sans-serif;" class=""><span style="font-size: 12pt;" class=""><o:p class=""> </o:p></span></div><div style="margin: 0in 0in 0.0001pt; font-size: 11pt; font-family: Calibri, sans-serif;" class=""><span style="font-size: 12pt;" class=""> Tom<o:p class=""></o:p></span></div><div style="margin: 0in 0in 0.0001pt; font-size: 11pt; font-family: Calibri, sans-serif;" class=""><span style="font-size: 12pt;" class=""><o:p class=""> </o:p></span></div><div style="border-style: solid none none; border-top-width: 1pt; border-top-color: rgb(181, 196, 223); padding: 3pt 0in 0in;" class=""><div style="margin: 0in 0in 0.0001pt 0.5in; font-size: 11pt; font-family: Calibri, sans-serif;" class=""><b class=""><span style="font-size: 12pt;" class="">From:<span class="Apple-converted-space"> </span></span></b><span style="font-size: 12pt;" class=""><<a href="mailto:ovmsdev-bounces@lists.teslaclub.hk" style="color: purple; text-decoration: underline;" class="">ovmsdev-bounces@lists.teslaclub.hk</a>> on behalf of Robert Sharpe <<a href="mailto:robert.sharpe@evergreen-consulting.co.uk" style="color: purple; text-decoration: underline;" class="">robert.sharpe@evergreen-consulting.co.uk</a>><br class=""><b class="">Reply-To:<span class="Apple-converted-space"> </span></b>OVMS Developers <<a href="mailto:ovmsdev@lists.teslaclub.hk" style="color: purple; text-decoration: underline;" class="">ovmsdev@lists.teslaclub.hk</a>><br class=""><b class="">Date:<span class="Apple-converted-space"> </span></b>Thursday, February 15, 2018 at 9:13 AM<br class=""><b class="">To:<span class="Apple-converted-space"> </span></b>OVMS Developers <<a href="mailto:ovmsdev@lists.teslaclub.hk" style="color: purple; text-decoration: underline;" class="">ovmsdev@lists.teslaclub.hk</a>><br class=""><b class="">Subject:<span class="Apple-converted-space"> </span></b>[Ovmsdev] Prolonging traction battery life feature<o:p class=""></o:p></span></div></div><div class=""><div style="margin: 0in 0in 0.0001pt 0.5in; font-size: 11pt; font-family: Calibri, sans-serif;" class=""><o:p class=""> </o:p></div></div><div class=""><div class=""><div style="margin: 0in 0in 0.0001pt 0.5in; font-size: 11pt; font-family: Calibri, sans-serif;" class=""><a name="_MailOriginalBody" class=""><span style="font-size: 10pt; font-family: Verdana, sans-serif;" class="">Hi All,<o:p class=""></o:p></span></a></div></div><div class=""><div style="margin: 0in 0in 0.0001pt 0.5in; font-size: 11pt; font-family: Calibri, sans-serif;" class=""><span class=""><span style="font-size: 10pt; font-family: Verdana, sans-serif;" class=""><o:p class=""> </o:p></span></span></div></div><div class=""><div style="margin: 0in 0in 0.0001pt 0.5in; font-size: 11pt; font-family: Calibri, sans-serif;" class=""><span class=""><span style="font-size: 10pt; font-family: Verdana, sans-serif;" class="">I have an idea that will help prolong the life of EV batteries and maximise vehicle resale value.<o:p class=""></o:p></span></span></div></div><div class=""><div style="margin: 0in 0in 0.0001pt 0.5in; font-size: 11pt; font-family: Calibri, sans-serif;" class=""><span class=""><span style="font-size: 10pt; font-family: Verdana, sans-serif;" class=""><o:p class=""> </o:p></span></span></div></div><div class=""><div style="margin: 0in 0in 0.0001pt 0.5in; font-size: 11pt; font-family: Calibri, sans-serif;" class=""><span class=""><span style="font-size: 10pt; font-family: Verdana, sans-serif;" class="">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 class=""></o:p></span></span></div></div><div class=""><div style="margin: 0in 0in 0.0001pt 1in; font-size: 11pt; font-family: Calibri, sans-serif; text-indent: -0.25in;" class=""><span class=""><span style="font-size: 10pt; font-family: Symbol;" class=""><span class="">·<span style="font-style: normal; font-variant-caps: normal; font-weight: normal; font-size: 7pt; line-height: normal; font-family: 'Times New Roman';" class=""> <span class="Apple-converted-space"> </span></span></span></span><span style="font-size: 10pt; font-family: Verdana, sans-serif;" class="">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 class=""></o:p></span></span></div><div style="margin: 0in 0in 0.0001pt 1in; font-size: 11pt; font-family: Calibri, sans-serif; text-indent: -0.25in;" class=""><span class=""><span style="font-size: 10pt; font-family: Symbol;" class=""><span class="">·<span style="font-style: normal; font-variant-caps: normal; font-weight: normal; font-size: 7pt; line-height: normal; font-family: 'Times New Roman';" class=""> <span class="Apple-converted-space"> </span></span></span></span><span style="font-size: 10pt; font-family: Verdana, sans-serif;" class="">the OVMS will be told the minimum required soc and when this should be achieved<o:p class=""></o:p></span></span></div><div style="margin: 0in 0in 0.0001pt 1in; font-size: 11pt; font-family: Calibri, sans-serif; text-indent: -0.25in;" class=""><span class=""><span style="font-size: 10pt; font-family: Symbol;" class=""><span class="">·<span style="font-style: normal; font-variant-caps: normal; font-weight: normal; font-size: 7pt; line-height: normal; font-family: 'Times New Roman';" class=""> <span class="Apple-converted-space"> </span></span></span></span><span style="font-size: 10pt; font-family: Verdana, sans-serif;" class="">it will then wait until the last moment to start charging to achieving the required min soc<o:p class=""></o:p></span></span></div><div style="margin: 0in 0in 0.0001pt 1in; font-size: 11pt; font-family: Calibri, sans-serif; text-indent: -0.25in;" class=""><span class=""><span style="font-size: 10pt; font-family: Symbol;" class=""><span class="">·<span style="font-style: normal; font-variant-caps: normal; font-weight: normal; font-size: 7pt; line-height: normal; font-family: 'Times New Roman';" class=""> <span class="Apple-converted-space"> </span></span></span></span><span style="font-size: 10pt; font-family: Verdana, sans-serif;" class="">a later version could receive a notification from your Google calendar with required mileage via IFTT, etc<o:p class=""></o:p></span></span></div></div><div class=""><div style="margin: 0in 0in 0.0001pt 0.5in; font-size: 11pt; font-family: Calibri, sans-serif;" class=""><span class=""><span style="font-size: 10pt; font-family: Verdana, sans-serif;" class="">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 class=""></o:p></span></span></div></div><div class=""><div style="margin: 0in 0in 0.0001pt 0.5in; font-size: 11pt; font-family: Calibri, sans-serif;" class=""><span class=""><span style="font-size: 10pt; font-family: Verdana, sans-serif;" class=""><o:p class=""> </o:p></span></span></div></div><div class=""><div style="margin: 0in 0in 0.0001pt 0.5in; font-size: 11pt; font-family: Calibri, sans-serif;" class=""><span class=""><span style="font-size: 10pt; font-family: Verdana, sans-serif;" class="">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 class=""></o:p></span></span></div></div><div class=""><div style="margin: 0in 0in 0.0001pt 0.5in; font-size: 11pt; font-family: Calibri, sans-serif;" class=""><span class=""><span style="font-size: 10pt; font-family: Verdana, sans-serif;" class=""><o:p class=""> </o:p></span></span></div><div id="" class=""><div class=""><div class=""><p style="margin-left: 0.5in; background-color: white; background-position: initial initial; background-repeat: initial initial;" class=""><span class=""><span style="font-size: 12pt;" class="">Regards,<br class="">Robert Sharpe (Managing Director)<br class="">07711 252971<br class=""></span></span><span class=""><span style="font-size: 13.5pt;" class="">Skype: arsharpe</span></span><span class=""><span style="font-size: 10pt; 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