Archives

I believe this is my best segment from work to home so far this year, done las night:

http://www.cleanmpg.com/photos/data/504/73.jpg

I have driven about 350 miles on this tank.

very nice for the CVT, what techniques did you use?

Thank you Phil.
I used FAS whenever possible, stop light or stop sign avoidance, momentum etc.
Pretty much everything with the exception of drafting, which I don't usually do unless in extreme cases.
Posted speed/My own speed:
35/28-30
45/35-50
55/50-60
65/52-60
(Approx...keep in mind that this is 2:00-3:00AM. Memorial day weekend traffic made it heavier than usual and had to cut down on some FAS I usually do...Kind of like that fish that got away)

This afternoon going back to work I had a terrible head wind but was able to escape it by using highway side roads for 1/3 the trip, essentially avoiding a 70MPH freeway. I parked at 65 point something which I'm happy with :rolleyes:

Hi Hot Georgia:

___Looks like you still have the touch ;) Congrats!

___With that, would you like your sig graphic linkable instead of a link under the graphic sig?

___This should help?

<a href="http://www.cleanmpg.com/index.php?page=garage&displayunits=MPG(US)&viewcar=125"><img src="http://www.cleanmpg.com/garage/images/125.png"></a>

___Just add the above to your sig and you should be set.

___Good Luck

___Wayne

wow, great job!!!

I used FAS whenever possible, stop light or stop sign avoidance, momentum etc.

how do you get regen then? or do you try to find routes with a lot of downhills?

Thanks again Phil, and Wayne.

I purposely avoid roads with alot of stops, and DWB is another technique I use as much as possible, and my route is alot of highway.
Regen really doesn't play a major part of recharge but mainly hidden charging.

I've been experimenting with a new route to avoid two lights at major intersections with ~20 minutes of heavy congested traffic.
40MPH posted limit should be a hypermilers dream...but...
The new route is 100% tall hills, tight curves and deep basings. Three stop signs aren't too much trouble the the flashing red light 1/4 of the way up the longer, steepest last hill is an issue.

I still come out ahead MPG and time wise compared to the traffic route but sadly that last light just drains and drains my pack to just under 1/2 SOC.
That alone might make me abandon my new route as I'm hard charging for a few miles, then about 10 miles of hidden charging.

1/2 SOC may not seem too excessive but I hope to drive this car more than 350K miles so I watch this useage closely.

Ok I'm confused. Today I had the best home to work segment since I've owned the car and began hypermiling:

http://www.cleanmpg.com/photos/data/500/70.jpg

Really no wind to speak of, temps in upper 80's, usual +90% humidity. Nothing special, and I used my old route for the lack of traffic for this Sunday.

I wonder what gives? Is it only "breaking in" at 70,000 miles?

I hope this holds up! ! ! :rolleyes:

The tank is over 500 miles and might be a personal record. I'm exited about that.

Hi Hot Georgia:

___> ½ on the old fuel level and 500 miles out? I think we can all do the math here :D

___Just finished the Accord’s best tank distance but not best FE over a tank. Missed it by a few tenths of an mpg :( Wait until you see what she is allowing me for the the next one ...

___These dry 60 - 70 degree mornings and 80 - 90 degree afternoon drives are stupendous for hypermiler’s all across the Midwest. I have to assume if it’s good for us, the slightly warmer morning temps have to be even better for someone located in Atlanta or even deeper into the south? I would hate to deal with the 95 + degree temps of Texas, Oklahoma, and Arizona but they have it made all winter when we are working our tails off for middling at best results ;)

___Good Luck

___Wayne

Ok here's the final talley....

http://www.cleanmpg.com/photos/data/504/67_7_935.jpg

I went 935 miles and pumped 12.7gallons to the rim (The last fuel bar had just gone out) for 73.6MPG, my new record to date.
Although not my distance record but I'm happy with that. As usual, I got cheated on the FCD. It does that if I get over mid 60's calculated.

I'm so embarassed about what I did yesterday that I had to post it here.
Just our secret, OK? :rolleyes:
I was exited because it was the end of my long tank and had 4 bars of fuel before leaving the house, and knew I'd be refueling.
When I get into the car I usually remove my shoes and sox for both heat comfort and foot feed accuracy. So I drive into the city of Atlanta and park at 5:30PM. I reach for my shoes and realize:

:eek: I forgot my shoes at home! :eek:

AARG! Whow boy, friday traffic heading out of town is gridlock. What to do? Surely I'll ruin my FE in that mess.

I call work and request a vacation day. It's not available. :mad:
I think about going to buy new shoes nearby. Bad Idea for embarassment and the old "Shirt and shoes required"

Ok, so I just toughed it out and got into my car and began to drive.
This was my first time in that grid lock traffic and since my engine was already hot it did much better than expected. I basically just kept a very large buffer.

About 1/2 way home the EXTREMELY heavy thunderstorms began.
I arrived home in the pouring-crackling rain, snuck into the house and stole my shoes (The wife would never let me live this one down) and headed back to work.

Upon restarting the car the last bar of fuel failed to light, and instead of risking running out of fuel in the pouring rain decided to fill up. So I esentally got cheated out of breaking my distance record as well. :(

So I checked in almost 3 hours late for work, but all worked out OK in that regards.

I've began my next tank. Next time I'll bring my shoes.

Hot Georgia

Congradulations on your new record. Don't you hate when something screws up your hard planed strategy? I went to work without my shoes one time also. I bet your boss thought you were just as crazy as my boss did. I'm a quick learner and have always showed up with my shoes since then.

I'm also in the middle of a potential record tank. I was thinking I might break the 100 MPG barrier on my last tank but had a problem with over charging on my 2000 Insight. My soc is normally 4 bars low but one day it charged all the way up to the point were it wouldn't take regen and it just kept on hidden charging at a rate that droped my milage about 15 MPG. I had shut it off a couple times thinking it would reset its self but it didn't. I was driving from Phoenix to Tucson and after I got there and left the car off for several hours it did reset its self. At the end of that tank I had set a high MPG record for my self at 97.9 at 976 miles. With 650 miles on this tank I'm showing 100.5 MPG and it is still rising. I was able to overfill the tank last time so I have about 600 miles of hard work ahead of me.....Louis

Thanks Louis!
I'm glad my ordeal from yesterday is all over.

I hope your Insight is OK, I'm not sure what could be wrong. Actually my HCH has kind of the opposite problem. Unless the headlights or parking lights are on the IMA likes to keep it around 1/2 SOC or less. Sometimes it would go higher but not often.

I had Honda look at it several times but never found any trouble. (But they also denied any hidden charging. They told me if the green charge bars aren't on, it's not charging.)
Anyway Wayne (xcel) showed me the headlight trick and is doing fine.

You know I've always loved the Insight and wish I had one.
I can't imagine breaking 100MPG!

very well done georgia, i'm envious knowing you only had to steer (CVT) in order to get good mileage :P

question when you FAS and then turn the key to IGIV (to crank the engine) what are the characteristics of your car?

My Insight seems to be fine for now and I didn't get a cel. About a week after it happened the Honda recall notice came out, maybe this is what they want to fix. I hope it doesn't happen again and mess up my 100 mpg effort.

I have tried the headlight trick on my car but didn't find much help. I'm not sure what draws more current the headlights or the hidden charge. I allways get better MPG with the lights off.

The Insight is a wonderfull little car and if you can use a two seat car, I would get one. If you want a new one you better hurry up, they cut them off in September. Doesn't make sense to me, in it's hour of greatest need they shut it off.....Louis

Thank you Phil. I'm not sure what you mean by the characteristics, but I do know there is a tug, or jerk in the car if going too fast. (Over about 40MPH).
For this reason my use of FAS is greatly limited compared to a manual transmission model.

It seems like the CVT switches or defaults to its lowest ratio when the engine is off.

As far as I can tell the boot sequence is this:
1. Engine fires (Starts)
2. Main clutch engages. (Even while still shifted in "N", causing a jerk because the wheel speed to CVT ratio is not correct)
3. CVT now has time to adjust to match engine/wheel speed.

50% of the time 2 & 3 happen at the same time, but sometimes #3 lags 1/2 second behind.

Back when my car was a month old I made some poor choices while learning this efficiency stuff.
While going about 55MPH I switched the engine off while in D to see what would happen and somehow the main clutch remained engaged while the CVT adjusted to its lowest ratio, causing ICE to spin at a very, very fast rate.
The next week I was going down a long, steep freeway grade. I usually just switch to N and it just rolls at about 55MPH. But this time I made the big mistake of doing a FAS at the higher freeway speed.

I let her slow to about 50MPH and upon restart heard a blood-curling scream from under the hood and felt like the power train was slipping.

That was more than two years ago and only a few months ago I did the same thing.
Fortunately it was one of those times when #2 and #3 worked properly, and there was no tug what so ever.

For those reasons I limit FAS to only those situations where a restart will not be done while exceeding 35MPH, or max 40.

FYI: In my 03 I don't experience the problem at any speed.

cool thanks for the visual on how to drive your car if I ever get a chance to ;)

when the car fires, #1 its using the big battery pack right? or the 12 volt? And the EV spins the engine alive without any effort I assume? I remember reading somewhere that under a FAS in N the car will use the backup starter always and that starter as you all know it sucks!

So lower the speed, the less #2 will have an effect on you? That's good I always restart on low speeds anyway ;)

Thanks again Phil.
The car starts with the hybrid battery. Actually I've never had the conventional starter ever crank it over. I only guess it's really there :rolleyes:

The jerk is not bad below 30MPH, and always avoid restarting over 40 if at all possible.
I also rev-match before shifting back to D.

tbaleno I'm glad to hear that your 03 doesn't do that.
I wish I could have brought it up to the dealer svc dept. But I'm not sure if they would approve with the technique ;)

Heh. True. I just find it curious. In mine I can't realy rev match. Mine always jumps right to about 1200 rpms no mater what speed I'm going. I never have my foot on the gas when I put it in drive. Is that different from what you did/do?

i thought for your cvts, when you go from N to D (and assuming your doing this without pressing a buton) the revs stay the same but when you give a moment to accelerate then the engine grips on and it goes from there. No need to rev match ever on an auto.

I also do alot of rolling in N with ICE ON, and I need to rev match before going back to D, otherwise I get the same kind of tug.

But because the engine is already running I don't get the #2 as I described earler:
2. Main clutch engages. (Even while still shifted in "N", causing a jerk because the wheel speed to CVT ratio is not correct)

I can be rolling in N with no foot feed and the RPM's settle down to 500RPM, even rolling at 55MPH. These are my target RPM's to match for the given speed:
Up to about 30 no need to rev match
40MPH: Just over 1,000RPM (Just a touch of feed)
50MPH: 1,500 RPM
60MPH: 2,000 RPM

For example if I'm Rollin in N going...say 60MPH while my engine is turning @ 500RPM, then switch to D without matching It will screeeeeetch until RPM's catch up. :eek:

Hot Georgia,

That is impressive!

67mpg in excess of 900 miles!

Not only is your car heavier than mine, but you (http://www.cleanmpg.com/forums/image.php?u=100&dateline=1148068846) seem to be heavier. :D

Hot Georgia,

That is impressive!

67mpg in excess of 900 miles!

Not only is your car heavier than mine, but you (http://www.cleanmpg.com/forums/image.php?u=100&dateline=1148068846) seem to be heavier. :D

LOL i'm more jealous he doesn't have to shift to get that kind of number!

seriously though your hch makes a better buy (if you don't care for passive safety) for value than a shiny new hchII unless i'm proven wrong ;)

Delta Flyer you really crack me up.
I was debating between the Fat Bast*** photo, Mini Me or Powers himself.
I might post a different scan of Fat Bast*** after a while, the one where he's really disgusting eating the greezy chicken in bed :rolleyes:

Phil, actually I'm also shifting allot. This is allot of work! (N then D for a while, N, shut down, roll, restart, rev match, back to D then do it over again...etc)
Guess that's part of the fun of it.