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Has anyone else had an experience with *low*
speed<br>power surges? On July 4, I drove uphill in <br>traffic
at 2mph with a full load and my accelerator
foot<br>firmly wedged against the side wall of the footwell (for
stability) and the car's thrust<br>was something like a
2-second square wave. (as<br>though it was switching on
and off the electric<br>motor...) <br><br>I haven't
been able to duplicate the effect<br>with lighter
loads or at higher speeds (3mph <br>is enough to stop
the oscillation).
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The closest thing I've encountered is when
pulling into the garage at a fraction of a mile per hour.
I can feel some granularity in the power. I figured
I was feeling the individual pulses going to the
electric motor.
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Re: "The closest thing I've encountered is when
pulling into the garage at a fraction of a mile per hour.
I can feel some granularity in the power. I figured
I was feeling the individual pulses going to the
electric motor."<br><br>The individual pulses going to the
motor are in the mid to high hundreds per second.
You're probably feeling the magnets in the rotor passing
the centers of the windings in the stator (the motor
housing). At really low speed this only happens 10's of
times per second.<br><br>Robert Snyder<br>NJ-PIKACHU
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Hmmm.. That's definitely not it -- this wouldn't
be "granularity in the power" but rather a sort of
gentle lurching (if you can call it that). <br><br>I'm
taking it in for the 1,000 mile service on the 23rd --
I'll post anything I can get out of the tech.
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>I know it feels like that when I am out of
gas and going up hill. <br><br>Had plenty of gas that
time, and the ICE did run smoothly as I demanded more
power to speed up, so I figure that probably isn't
quite what I felt. <br><br>I still haven't had the
courage to run it all the way out of gas. Soon...