That's great info fechter, Thanks,fechter wrote:My 2003 Honda Civic Hybrid just turned 100k miles this weekend.
So far, I can notice some degradation in the capacity of the Nimh pack, but it is still fully functional. My daily commute takes me over a couple of medium sized hills on the freeway, which can nearly deplete the battery when climbing. It nearly fully recharges by the time I get to the bottom on the other side. Since I cross the same hills on the way home, the total charge/discharge cycles on the pack are considerable (thousands).
The car has never failed other than tires blowing and the windshield getting cracked by a rock. The front brake pads are almost getting to the point where they need replacement (still on original pads).
My gas mileage averages around 42-43 mpg (measured at the pump). I think it would be quite a bit higher if I didn't have those hills to deal with or if I drove at the speed limit.
The only maintenance done so far is to change the oil (10,000 mile recommended interval) and the CVT transmission oil (30k mile interval), along with the filters, including the air filter. There have been two software updates for the car computer that were covered by warranty (no charge).
Now that the warranty is fully expired, I guess I can see about hacking the battery. I have not seen a plug-in pack conversion for Hondas, so it could be quite challenging (impossible).
Now, if we could just get e-bikes up to this level of reliability...
I estimate that's about 3,000 battery cycles.Doctorbass wrote:
Do you have any info on how many equivalent battery cycles that millage could correspoond to?
I've never opened it up to take a look, so I'm not sure. I thought they were Panasonic or something.dragonfire wrote:interresting, do you know the manufacturer of the packs ?
if the company that comes into mind with me is the one you are referring to itÂ´s the on that stored a123 cells in the space of the spare tire and also had another kit to fast-recharge this and the onboard supercaps in little time only ?spinningmagnets wrote:Fechter, I imagine you've done more research on these than the average interested bystander, so...
I felt it was quite telling about customer fickleness when the original 2-seat Honda Insight had to be discontinued (in the US) due to low sales. Some polls showed that green-minded buyers felt if the fuel mileage and price were about the same, they preferred to have 4 seats. Perhaps when "reducing our carbon footprint" they still wanted to occasionally go to a restaurant with friends (in one car, not two).
Another possible influencing factor is that even as early as when the Prius first came out, "Plug-in Hybrids" were of interest to passionate early-adopters. I'm told that compared to the early patented Honda system, the Prius was recognised as easier to upgrade into a plug-in hybrid (with potentially a 30 minute electric-only range). IIRC, a company called Hymotion was doing conversions.
With your description of draining the battery on an uphill, I realized I am not familiar with the 2003 gasoline/electric operating protocol. My question is, when your Civics battery finally loses enough capacity and function so as to be unusable, could a simple computer patch and Lithium battery make it a 30-minute plug-in hybrid?
Yes, I've made that happen before, but now if I get into that mode, I fully release the brakes for a second to bump the ICE back on before it gets rolling too fast.reagle wrote:Fechter, it's nice to know these cars are so good- my own 07 Civic Hybrid is already on 30K
Biggest issue so far was a firmware bug that's still somewhat unresolved- having to with when ICE engine shuts off in autostop condition and the vehicle is still rolling. An admittedly tricky situation, this results in an occasional bump when things finally align.
Right. So here's what I came up with, a surplus electrophoresis power supply that can do a constant current up to 400mA and up to 300V. To access the IMA system, I needed to remove the rear seat back and take out a bunch of screws holding the cover plate.neptronix wrote:Hmm, i don't see any 120 cell balancers on hobbyking