A few quick notes on the Prius-II from a non-Prius-II owner …

[xcel]

Hi All:

___Dead stick glides work in the Prius-II just as they did in the Prius-I so the warm up hit can be managed with the right kind of initial route.

___The drivers seat bottom is a bit short for me and my right thigh is off the seat cushion while on the accelerator. I will work on a better driver position tomorrow.

___EV is much stronger (much less hit on the pack for an equivalent distance) then in the Prius-I.

___All 5-minute bars can be pegged in 63 - 64 degree temps and medium to light rain on my drive to the Interstate tonight. Not a chance of that in the Prius-I.

___Bluetooth … I cannot seem to upload my Motorola’s 815 address book to the Prius’ address book?

___TPMS ... Manual states a max 73 # tire pressure before the transducer evokes a TPMS warning.

___SG-II at 0% speed/distance and 0% Fuel use offset seems to be at least 10% off of the MFD I just started the SG-II calibration tonight so we shall see what comes of that?

___Tank was almost empty when it arrived. Drove 51 miles beyond the last blinking pip and added 12.2 gallons.

___Good Luck

___Wayne

[Right Lane Cruiser]

I can't wait for more!!

Look out guys, here comes another 1k+mi tank!!!!

[Tochatihu]

Some tall folks have adjusted Prius driver seat by replacing the front 2 seat bolts with longer, and stacking washers under the rack to get more 'tilt back'. The rear bolts must be slightly loosened for that (and retightened when finished).

Don't mess up the fuel tank HC adsorber on somebody else's PII by overfilling, xcel

DAS

[xcel]

Hi All:

___There is a bit more to the Dead-Stick Glide in the Prius-II then the -I. I am not sure of the exact procedure just yet but somehow I was able to hold ICE-Off after a 10 second pulse/start via cycling the power button but only had to shift back into D for her to start back up without goofing around with rebooting again? I have to figure that one out as I really liked this quick hit FAS w/out the dead stick mode of operation in order to reduce the warm-up hit.

___Also, if you do shift her to N before the 8-second (I think it is about 8 seconds?) system check from dead cold, you can keep the ICE-Off in case you have a downhill to begin your initial movement. Sort of like a FAS without the FAS?

___She hates rain and it has been raining like a beast in the Chicagoland area for the past 2 + days with another two projected so she is sitting a lot more then being driven.

___Doug, I had a good look at the bladder details and I don’t see how anything is going to get out of that and up into the canister. When you are full, there might be another miniscule .4 gal left to top off. Sad given the European’s and Japanese do not have that #%( *#!)$ Prius bladder and another ~ 15L + is available for much further range

___Great to hear about a method to fix that seat height/angle given I am sure my right thigh is going to be a bit fatigued over a longer drive. In Pittsburgh, I was probably to focused on the task at hand to worry about the seat ergonomics? Would you mind doing another peer review when this is complete?

___JimboK, can you do me a favor and watch current flows from a 70 mph down to 50 mph WS Glide? I saw some similar action as the -I with a back and forth no-arrow glide to pack through MG1 and back to a no arrow glide while slowing gently. The ICE was spinning over at 980 RPM as it should but the mimic can be held in a no-arrow and I want to know what current flows are doing while traversing this state? I don’t think this is the case but could MG2 be involved with this High speed WS no-arrow glide to keep the ICE spun up?

___SG-II was only under reporting by 3 this morning vs. the MFD. The actuals were a rather embarrassing at 67.3 in heavy rain with an average speed of 51 mph but she will get her chance once the SG-II is calibrated after a quick first pip to top off fill sometime later this week and when the weather clears

___Good Luck

___Wayne

[brick]

Originally Posted by xcel

___Doug, I had a good look at the bladder details and I don’t see how anything is going to get out of that and up into the canister. When you are full, there might be another miniscule .4 gal left to top off. Sad given the European’s and Japanese do not have that #%( *#!)$ Prius bladder and another ~ 15L + is available for much further range

It has been done, and with expensive results. (Galaxee at PriusChat posted the details.) What you have to remember about the bladder is that gravity isn't the only force working on that fuel. If the tank is completely full and then fuel expands during the heat of the day, the bladder acts like a balloon and forces the fuel out of any available path of least resistance. That can be (and at least a few times has been) into the EVAP canister which gets saturated and fails. Sadly the only way to repair the damage is to replace the entire freaking fuel tank. (Another example of cars being designed for manufacture but definitely NOT for serviceability.)

The one thing you have going for you is a long-ish commute. If you fill in the evening before heading home (or in, as it may be) and then head back the other direction the following morning you should have burned off enough fuel to overcome the expansion. But hey, what do I know...

[xcel]

Hi Tim:

___Thanks for the details. She saw about a gallon and a quarter consumed after the fill and I will continue that practice so she is good to go.

___Good Luck

___Wayne

[JimboK]

Originally Posted by xcel

JimboK, can you do me a favor and watch current flows from a 70 mph down to 50 mph WS Glide?

You're asking me to go 70??? What's this world coming to?!

I think it's in the neighborhood of 10 amps, but I'll see if I can get it onto the highway in the next day or two to verify.

[hobbit]

I ran across an interesting technique over on iATN for trying
to clear the canister: get the engine idling, force the purge
solenoid open with a scantool, and let it sit there pulling
vapor through the intake for half an hour or more. The theory
is to pull enough air back through the vent canister to dry it
out, basically. Dunno if it would work on a prius, and some
of that purge air goes through the tank between the outer shell
and the bladder as an additional leak-detection technique [i.e.
the system uses the A/F sensor to look for additional vapor]
so it might take even longer than with a conventional car.
.
Warp-stealth currents on the "plateau" are generally on the
order of 10 amps, but with *very* fine foot control you can
regulate between that and the -20 amps of regen and find zero.
The MFD will go to a no-arrows state around 0 amps but that's
really difficult to find and hold without a current meter.
.
As regards motor torques -- never assume that anything is happening
solely with MG1 or MG2. Torque commands are generally sent to
both, to balance out everything going on between them and the
engine and driver demand eventually showing up at the wheels.
Even something simple as starting the ICE at a standstill involves
a little back-torque in MG2 to counteract the forward spin that
MG1 is supplying. The net result of wherever power flows to
is what shows up as battery current, but that doesn't show what's
going between the motors internally to the inverter.
.
_H*

[locutus]

Uh-oh, Wayne gets a hold of a P-II...

- Can you explain "Dead-Stick Glide"?
- N within 8 seconds of powering on will indeed prevent the immediate S1. You'll still need to go through it at some point but you can prevent it on startup this way.
- Odd, my SG with no calibration has been pretty much dead-on in terms of MPG, though distance seems to be about 1% under-reported.

[brick]

Originally Posted by hobbit

The MFD will go to a no-arrows state around 0 amps but that's
really difficult to find and hold without a current meter.

I got pretty good at hitting it by letting all the way off the pedal and then just **barely** touching it to kill regen. To my butt-o-meter at ~60mph, no arrows doesn't seem to gain a whole lot vs. backing all the way off in terms of drag and glide distances. It's odd because the car noticeably "lets go" once the MFD shows a little juice flowing out of the battery. If nobody had told me otherwise, I'd think that the range was almost zero amps of regen out to something measurable on the assist side.