ScanGauge II - new features to be added

<div class='quotetop'>QUOTE(Neicy @ Oct 19 2007, 04:19 AM) [snapback]527677[/snapback]</div>

Just wanted to say that a few weeks ago my SOC showed 82.5 when traveling down a local mountain for quite some time. I thought the max SOC was 80, guess I was wrong.

 

So we only get two new things to monitor SOC and BTV? I'm looking at the list and it shows GM and Ford get a ton more things to monitor. Why does the Prius only get two?

 

Great....I can't get BTV to work in my 2007 Prius. I have put in the correct codes. It seems to be a hit and miss in getting BTV to work with some 2006 and 2007's.

 

<div class='quotetop'>QUOTE(efusco @ Sep 18 2007, 03:36 AM) [snapback]514188[/snapback]</div>

I've seen this range mentioned numerous times, but had my first experience monitoring it this morning with a ScanGauge. The question I have is if this is the ideal range for acceleration only or does it also apply to cruising at a steady speed. I noticed that when I would cruise with the ICE on at around 40 - 50 mph it was often at an rpm of around 1200 - 1500. Is it really more desireable to increase speed (when possible) to get up to 1700 rpm while cruising. I tried this to see what the effect would be and instantaneous mpg was somewhat lower at the higher speed at 1700+ rpm (I forget the actual mpg numbers but it was a noticeable difference). From what I understood, I thought the engine would be "loafing" and less efficient at lower rpm, but it is counterintuitive to increase the rpm and obtain a worse instantaneous mpg.

 

<div class='quotetop'>QUOTE(Highly ImPriused @ Nov 2 2007, 09:44 AM) [snapback]533861[/snapback]</div>

If I'm going for a 60 mph average, I try to hold rpm between 1600 and 1700. If you hold 2300 rpm you'll be going 75 or 80.

The talked about range is where the ice is putting out power most efficiently, but it doesn't talk about where the power goes or what gear it will be in at the speed you are traveling.

If you're at 1700 rpm at 50 mph, the car will want to pick up speed so I think it isn't in the biggest gear, which is what you are seeing with the lower mpg readings, a lower rpm will get in a more efficient state at that point.

Play around and learn what the car does based on rpm and speed and you'll figure out the formula.

 

<div class='quotetop'>QUOTE(douglas001001 @ Nov 2 2007, 11:55 AM) [snapback]533903[/snapback]</div>

Thanks!

I was just over at cleanmpg and read up on Super Highway Mode using a target IGN reading of 14 (which can correspond to a rpm of only 1200 or so). It's all making a lot more sense now. Can't wait to try these new techniques on the way home.

 

<div class='quotetop'>QUOTE(Highly ImPriused @ Nov 2 2007, 11:06 AM) [snapback]533911[/snapback]</div>

Based on your earlier post that you like to hold a constant speed I'd try holding ign 15. Save the coasting in 14 to after you're used to getting the car to do what you want it to do.

 

I noticed just the other day that the list of codes has one for HP listed under "ALL" vehicles. Anyone added that one? Does it work?

 

<div class='quotetop'>QUOTE(Neicy @ Nov 2 2007, 12:51 PM) [snapback]533977[/snapback]</div>

Give it a try, you could be the pioneer of the "Neicy accelerate by watching HP for better FE method"!

 

Found that DavideAndrea at the phev wiki has discovered the xgauge commands to get battery pack amps! Prius PHEV TechInfo - EAA-PHEV

Cut and pasted below in case no one here pays attention to the wiki

Pack current [Amps]
TXD: 07E321CE
RXF: 056186CE0000
RXD: 3810
MTH: 0001000AF333
Name: AMP (or whatever you want)

Pack State Of Charge [%]
TXD: 07E321CE
RXF: 056186CE0000
RXD: 3008
MTH: 000A00020000
Name: %SC (or whatever you want)

Pack Voltage [V]
TXD: 0033
RXF: 0100023B0000
RXD: 2010
MTH: 000100010000
Name: Vbt (or whatever you want)

 

It does!

 

so you see a code 0033 .. buth meaning what?

 

Code 0033 corresponds to the battery broadcast message ID of 03B.

see: Prius PHEV TechInfo - EAA-PHEV

note: when figuring out what corresponds to what, the highest bit in the third ID symbol of the message/response from the ECU, in the above case is "B", if you convert it to binary, is 1011. Flip the highest bit, and you get 0011, which is equal to 3 in binary.

 

I can't get the battery voltage (BTV) to work. I have rechecked the numbers and they are correct. Battery current, state of charge and horsepower all work though. Are there alternate codes for battery voltage?

We have also have a 2006 Prius and the BTV codes don't work on it either.

 

You are not alone. I spoke to the ScanGauge guy about the same problem. That was months ago, still no posted solution. Time to call again, more callers would be a good thing.

Linear-Logic (ScanGauge), 888-433-5664