11-17-2007, 02:05 PM
I've noticed in my hch2 that during recent temp of -1 or -2 (around 30 f for you down south) that there is forced regen:mad: for the first 10-15 min of my commute. this is for city driving only. the hch2 warms up nicely within a couple of minutes. this occurs even at 7 or 8 bars. anyone else have this problem and anyway this can be fixed? or is this happen only during the breakin phase?
11-17-2007, 08:49 PM
I do notice 1 bar regen. Maybe it helps with the warm-up?:D H
11-17-2007, 09:11 PM
This behavior is by design, so there's nothing to worry about.
However, the best way to reduce the chances of a prolonged forced regen is to use the block heater. Once the engine is reasonably warm you'll notice it is very easy to cancel this forced regen by momentarily lifting the foot off the gas pedal a couple of times followed by gentle accelerations. If you do it correctly you'll notice you can even kick it into a nice hidden regen without much of a penalty in fuel economy.
Personally, I "like" the forced regen while the engine is warming up. During this time the engine is producing far more torque and burning far more fuel than what's necessary to move the vehicle forward. So when this happens I am happy to "steal" some of that extra load back into the battery. :)
11-18-2007, 04:16 PM
I don't know about the HCH for sure, but the Insight has a force charge on cold starts as well and it's not meant to help the engine warm up, but rather the battery. By putting a gentle charge on it, it prepares the battery for harder use that might hurt it if it were as cold as at startup. I use a block heater as well, which is great to help the engine warm up to operating temperature, but this charging behavior is determined by battery temperature sensors.
11-18-2007, 06:16 PM
I agree its meant to warm the IMA but in doing so it helps warm the ICE up quicker as well. H