Assist at 3 bars, thermostat-based charge current limiting
Folks,
Does anyone's Insight "sit" at three bars while allowing Assist for a long time before starting to limit assist after a grid-based recharge (w/ an Idle Relearn immediately following that recharge)?
That's what mine does, and I'm assuming it's from the BCM thinking a full charge is achieved at what is actually a 75% absolute charge (80% for original BCMs), when it's actually usually near 100% charged, and it can't see and/or account for the difference. The BCM then tracks the pack depletion to what is supposed to equate to a 35% absolute charge (20% for original BCMs) at the 3 bars basement level but is actually 50% (100%-75%+35%) (or 100%-80%+20% = 40% for original BCMs). Assuming the Assist gets limited only when the BCM sees bi-stick voltage tap levels significantly increasing their negative slope and/or going below a threshold voltage, Assist would be allowed longer than expected given the higher than expected actual SOC.
(I'm also remembering newer replacement BCMs such as mine as keeping the pack in a Prius-like 35% to 75% SOC window, which could be off a bit, and of course many folks here probably haven't had Honda replace their packs because they found a better way to address pack issues , letting them keep the wider 20 - 80% SOC window via their original BCMs, which would also reduce the BCM's SOC calculation error I suspect I'm seeing.)
Does that resemble the experience of anyone else doing grid-based recharging, and are my assumptions reasonable?
Also, for summer months at least, would including at least a simple pack fan exhaust -based thermostat (i.e. attic fan t'stat -case) perhaps be a good idea for early exit of the high-current charging circuit in a bi-level charger? I suspect it certainly wouldn't hurt.
Regards,
Roger
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Silver 2000 5spd Insight
218,000 mi.
55 - 76 mpg
rogerspace.org/2000insight.html
Action without philosophy is a lethal weapon; philosophy without action is useless.
- Soichiro Honda
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