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Gen 2 Hold Mode -- weaker "grip" than Gen 1?

6752 Views 45 Replies 22 Participants Last post by  MikeyCVolt
My early impression--subject to revision--is that my Gen 2 does a worse job "holding" EV miles than my Gen 1 using it on the same commute.

I can't figure out if Gen 2 tries to "get back" to the held SOC setpoint, especially if it requires battery power beyond the ICE alone. On my Gen 1, the ICE (mostly) added charge to maintain the HOLD setpoint--but it also operated in a serial hybrid capacity. On my Gen 2, it seems that whenever it needs battery + ICE (like hard acceleration), it doesn't try to "replace" it. Maybe a characteristic of the parallel hybrid setup? Or maybe it tolerates more deviation?

It seems this member also noticed this issue on a 2000-mile trip where he used "hold" the whole time and lost half his EV miles.

What's going on here? Is the battery just augmenting the ICE in Hold mode? Do I need to drive within the (lower) power demands of the ICE alone in hold to avoid drain? Under what conditions (if any) will Gen 2 maintain the Hold setpoint?
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It's an amazing car and for me, playing with the "system" to try and maximize EV miles is a great way to pass the time on longer trips. I always use "L" and I always try to arrive back home with as close to 1 or 2 EV miles left. The Volt is like a "teaser" vehicle for folks that aren't sure about a pure BEV. Once you experience electric only driving you really can't wait to get a pure BEV.
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