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    Mark,<br>
    <br>
    I completely misunderstood bit 3 "pilot present" as a driver
    detection (seat pressure), good you explained that now :-)<br>
    <br>
    I may have been unclear. I tried to use bit 4 before, but the 12V
    battery charge process is decoupled from the main battery charge
    process. That's for the Twizy, of course, but I suppose that's on
    other cars as well, as it seems to make sense to charge the 12V
    battery independantly.<br>
    <br>
    I first thought about extending the doors flags to introduce a
    separate "12V charging" flag, but then thought the combination
    car_linevoltage + car_chargecurrent normally implies this.<br>
    <br>
    But "pilot signal present" is also not quite the same as "charging
    12V"...<br>
    <br>
    So, would you still say we can generally use bit 3 for this, or
    shall I rather introduce a new vehicle hook, as this needs to be
    vehicle dependant?<br>
    <br>
    Thanks,<br>
    Michael<br>
    <br>
    <br>
    <div class="moz-cite-prefix">Am 29.01.2013 02:24, schrieb Mark
      Webb-Johnson:<br>
    </div>
    <blockquote
      cite="mid:C85FCBBE-CEA8-4BF9-ABB2-894A4C9C07C1@webb-johnson.net"
      type="cite">Michael,
      <div><br>
      </div>
      <div>To determine if the car is charging or not, the best way is:</div>
      <blockquote class="webkit-indent-blockquote" style="margin: 0 0 0
        40px; border: none; padding: 0px;">
        <div>
          <ul style="list-style-type: disc">
            <li style="font-size: 12.000000pt; font-family: 'Symbol'">
              <p><span style="font-size: 12.000000pt; font-family:
                  'Helvetica'">unsigned char car_doors1 [bit 4]<br>
                  This bit is set to 1 if the vehicle is currently
                  charging, else 0.</span></p>
            </li>
          </ul>
        </div>
      </blockquote>
      <div><br>
      </div>
      <div>Alternatively, if you want to pickup "able to charge" rather
        than "charging":</div>
      <blockquote class="webkit-indent-blockquote" style="margin: 0 0 0
        40px; border: none; padding: 0px;">
        <div>
          <div class="column">
            <ul style="list-style-type: disc">
              <li style="font-size: 12.000000pt; font-family: 'Symbol'">
                <p><span style="font-size: 12.000000pt; font-family:
                    'Helvetica'">unsigned char car_doors1 [bit 3]
                  </span></p>
                <p><span style="font-size: 12.000000pt; font-family:
                    'Helvetica'">This bit is set to 1 if the pilot
                    signal is present, else 0. This would normally
                    indicated that the vehicle is connected to external
                    power and either
                    charging or ready to charge. </span></p>
              </li>
            </ul>
          </div>
        </div>
      </blockquote>
      <div><br>
      </div>
      <div>Seems a better solution than linevoltage/current.</div>
      <div><br>
      </div>
      <div>Regards, Mark.<br>
        <div>
          <div>On 29 Jan, 2013, at 5:05 AM, Michael Balzer wrote:</div>
          <br class="Apple-interchange-newline">
          <blockquote type="cite">
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            <div bgcolor="#FFFFFF" text="#000000"> Done :-)<br>
              <br>
              Also, as the Twizy (and I suppose other cars as well)
              charges the 12V battery further on as long as it's plugged
              in, I now use the plug in status (car_linevoltage +
              car_chargecurrent) to detect a 12V charge status.<br>
              <br>
              After plug-out, the OVMS waits for 10 minutes (time for
              the 12V battery to calm down) until taking the new ref
              voltage. That will still be a bit above the nominal
              voltage, but the span should be short enough to allow for
              taking a new ref even if taking the car for the next drive
              soon after charging.<br>
              <br>
              I hope this will work on other cars as well without
              change/config, but it will now need the car_linevoltage
              and car_chargecurrent reflecting the actual plugin status.
              If a car cannot provide this info, we can introduce a new
              vehicle hook for a function that checks for a valid
              calibration time.<br>
              <br>
              Regards,<br>
              Michael<br>
              <br>
              <br>
              <div class="moz-cite-prefix">Am 26.01.2013 22:05, schrieb
                Michael Balzer:<br>
              </div>
              <blockquote cite="mid:5104451C.8040005@expeedo.de"
                type="cite">I've got a flaw in there: as the code begins
                taking ref max values right after charging ends, the ref
                gets too high. After charging my current ref is now 14.7
                due to that bug, should be around 12.7. <br>
                <br>
                I need to factor in the voltage decay after end of
                charge. I'll see if I can get that in without
                introducing a new timer variable... <br>
                <br>
                @Mikeljo: "> 13" is correct (just ensures ref-13 >
                0), your change to "> 130" is not correct, as the ref
                can be much lower. <br>
                ...also consider using stp_l2f() for the STAT message,
                see the DIAG message for a copy source. <br>
                <br>
                I really should document the stp functions... <br>
                <br>
                Regards, <br>
                Michael <br>
                <br>
                <br>
                Am 25.01.2013 17:16, schrieb Mark Webb-Johnson: <br>
                <blockquote type="cite">Michael, <br>
                  <br>
                  Seems like a sensible approach. <br>
                  <br>
                  Your car is now showing "11.9,0,12.2". <br>
                  <br>
                  I'll try it in my car over the weekend. <br>
                  <br>
                  Regards, Mark. <br>
                  <br>
                  On 25 Jan, 2013, at 9:16 PM, Michael Balzer <a
                    moz-do-not-send="true" class="moz-txt-link-rfc2396E"
                    href="mailto:dexter@expeedo.de"><dexter@expeedo.de></a>
                  wrote: <br>
                  <br>
                  <blockquote type="cite">Mark, Tom, <br>
                    <br>
                    I just checked in the auto calibration
                    implementation. <br>
                    <br>
                    It works by taking the maximum voltage reading while
                    the car is off and not charging as the reference
                    voltage, so it should adapt to all possible
                    variations. <br>
                    <br>
                    Alert is triggered if current reading is at/below
                    ref - 1.3V, which should fit for all cases. <br>
                    <br>
                    The alert now also includes the reference, and it
                    can be queried by the "DIAG" SMS command. It's also
                    now included as a new field in the environment
                    message ("D"). <br>
                    <br>
                    Regards, <br>
                    Michael <br>
                    <br>
                    <br>
                    Am 22.01.2013 04:19, schrieb Mark Webb-Johnson: <br>
                    <blockquote type="cite">Tom, <br>
                      <br>
                      My understanding is that the 2.x cars work the
                      same way. The 12V battery is just for emergency
                      systems. <br>
                      <br>
                      Presumably if the main pack fails (fuse blows,
                      whatever), the 1.5 cars have no way of running
                      hazard warning lights, brake lights, etc. <br>
                      <br>
                      It would still be useful to see the stability of
                      that 12V line, on the v1.5 Tesla Roadsters. <br>
                      <br>
                      Regards, Mark. <br>
                      <br>
                      On 21 Jan, 2013, at 12:48 AM, Tom Saxton <a
                        moz-do-not-send="true"
                        class="moz-txt-link-rfc2396E"
                        href="mailto:tom@idleloop.com"><tom@idleloop.com></a>
                      wrote: <br>
                      <br>
                      <blockquote type="cite">on 1/19/13 10:08 PM, Mark
                        Webb-Johnson wrote: <br>
                        <br>
                        <blockquote type="cite">If anyone has a 1.x
                          roadster with a v2 hardware module, and has
                          recently <br>
                          parked it for some days, it would be helpful
                          if you could send me the <br>
                          date/time range and your vehicleid. <br>
                        </blockquote>
                        I don't think the v1.5 Roadster has a 12V
                        battery. It's my understanding <br>
                        that it uses a DC-to-DC converter on one of the
                        ESS sheets to power the 12V <br>
                        systems when the car is off. <br>
                        <br>
                            Tom <br>
                        <br>
                        <br>
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                    -- <br>
                    Michael Balzer * Paradestr. 8 * D-42107 Wuppertal <br>
                    Fon 0202 / 272 2201 * Handy 0176 / 206 989 26 <br>
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              <pre class="moz-signature" cols="72">-- 
Michael Balzer * Paradestr. 8 * D-42107 Wuppertal
Fon 0202 / 272 2201 * Handy 0176 / 206 989 26
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    <pre class="moz-signature" cols="72">-- 
Michael Balzer * Paradestr. 8 * D-42107 Wuppertal
Fon 0202 / 272 2201 * Handy 0176 / 206 989 26
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