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mwalsh
Posts: 9753
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Leaf Number: 0213
Location: Garden Grove, CA

Kudos to the CANbus SOC meter team!

Fri Aug 05, 2011 7:55 pm

I didn't follow the various threads too much....way above my pay grade. All I knew is that I HAD to have one of the first SOC meters released into the wild, no matter how it came about.

So kudos and thanks to all who made the CANbus based State of Charge meter a reality, from those who originally conceived the idea through the beta testers of various iterations. But in particular, a big hand to Gary and Robert, who were definitely a force to be reckoned with when it came to discovering what made the LEAF tick and coming up with ways to manipulate the data to the point that is was useful to us! Well done you guys, and thanks! :)
2011 Blue Ocean SL with 86,000 miles
2015 pack on 12/30/15
Tinted windows
Bosch AGM 12v
Ecopia 422+ tires
L1 EVSE upgrade
FIAMM horns
Superbright LED lighting
2013 sun visors
LED shifter
Heated seats
GT-R map lamp lenses
Altima illuminated door switches

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Ready2plugin
Posts: 672
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Re: Kudos to the CANbus SOC meter team!

Fri Aug 05, 2011 7:58 pm

mwalsh wrote:I didn't follow the various threads too much....way above my pay grade. All I knew is that I HAD to have one of the first SOC meters released into the wild, no matter how it came about.

So kudos and thanks to all who made the CANbus based State of Charge meter a reality, from those who originally conceived the idea through the beta testers of various iterations. But in particular, a big hand to Gary and Robert, who were definitely a force to be reckoned with when it came to discovering what made the LEAF tick and coming up with ways to manipulate the data to the point that is was useful to us! Well done you guys, and thanks! :)
+1!! :!:

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garygid
Gold Member
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Delivery Date: 29 Mar 2011
Leaf Number: 000855
Location: Laguna Hills, Orange Co, CA

Re: Kudos to the CANbus SOC meter team!

Fri Aug 05, 2011 8:08 pm

+6, ... oh, wait ...

everybody was clapping and yelling, I just HAD to join in! :lol:

Sorry, just a "knee-jerk" reaction of my host body, I suspect. :D
See SOC/GID-Meter and CAN-Do Info
2010 Prius
2011 LEAF, 2014 Tesla S85
2018 & 2019 Tesla Model 3
PU: SDG&E
Solar PV: 33 x 225W -> 7 kW max AC
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Boomer23
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Delivery Date: 30 Mar 2011
Location: Orange County, CA

Re: Kudos to the CANbus SOC meter team!

Fri Aug 05, 2011 8:10 pm

mwalsh wrote:I didn't follow the various threads too much....way above my pay grade. All I knew is that I HAD to have one of the first SOC meters released into the wild, no matter how it came about.

So kudos and thanks to all who made the CANbus based State of Charge meter a reality, from those who originally conceived the idea through the beta testers of various iterations. But in particular, a big hand to Gary and Robert, who were definitely a force to be reckoned with when it came to discovering what made the LEAF tick and coming up with ways to manipulate the data to the point that is was useful to us! Well done you guys, and thanks! :)
If this were Facebook, I'd be clicking "Like".

Outstanding job, MNL CAN SOC hackers, and a big well done to Engineer Gary!
2018 Tesla Model 3 Long Range RWD
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TomT
Posts: 10650
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Leaf Number: 000360
Location: California, now Georgia
Contact: Website

Re: Kudos to the CANbus SOC meter team!

Fri Aug 05, 2011 8:13 pm

I agree whole-heartedly! I'm hoping that Gary and I wind up at one of the meetings together so that I can pick up a kit from him in person! I'd probably opt for one of his "pre-holed" cases since I'm great at electronics but suck at plastic fabrication...
mwalsh wrote:I didn't follow the various threads too much....way above my pay grade. All I knew is that I HAD to have one of the first SOC meters released into the wild, no matter how it came about.
So kudos and thanks to all who made the CANbus based State of Charge meter a reality, from those who originally conceived the idea through the beta testers of various iterations. But in particular, a big hand to Gary and Robert, who were definitely a force to be reckoned with when it came to discovering what made the LEAF tick and coming up with ways to manipulate the data to the point that is was useful to us! Well done you guys, and thanks! :)
Leaf SL 2011 to 2016, Volt Premier 2016 to 2019, and now:
2019 Tesla Model 3; LR, RWD, FSD, 19" Sport Wheels, silver/black; built 3/17/19, delivered 3/29/19.

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mwalsh
Posts: 9753
Joined: Thu Apr 22, 2010 10:10 am
Delivery Date: 05 Jan 2011
Leaf Number: 0213
Location: Garden Grove, CA

Re: Kudos to the CANbus SOC meter team!

Mon Aug 08, 2011 6:03 pm

First full day with the SOC meter, and it's already paid for itself with making me more confident with what I'm seeing displayed elsewhere. Some things I've noticed:

My car doesn't charge to 100%. Last night it charged to 97.5% / 274 units raw. This is the reason I'm not getting a full measure of range off bar 1, and pretty much what I expected to see.

The Guessometer in my "old bars" car bears a loose resemblance to the actual SOC left in the car. Meaning that sometimes when the Guessometer reads, say, 60 miles remaining, I actually have around 60% SOC. This happened too frequently to be coincidence.

I had always thought that I got home with at least 25% SOC left. I actually got home today with 27% SOC left. From the number of bars left, I figure I arrive home with around 30% left on days were climate control is not used. That's for the 61 miles driven.

Left home: 97.5% / 274 units
Arriving at work 30.5 miles later: 58.3% / 164 units. 67mph on cruise control pretty much the whole way.
Arriving home again: 27% / 76, Slow-and-go driving, with the A/C on, at speeds up to 65mph.
2011 Blue Ocean SL with 86,000 miles
2015 pack on 12/30/15
Tinted windows
Bosch AGM 12v
Ecopia 422+ tires
L1 EVSE upgrade
FIAMM horns
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2013 sun visors
LED shifter
Heated seats
GT-R map lamp lenses
Altima illuminated door switches

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evnow
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Re: Kudos to the CANbus SOC meter team!

Mon Aug 08, 2011 6:17 pm

mwalsh wrote:The Guessometer in my "old bars" car bears a loose resemblance to the actual SOC left in the car. Meaning that sometimes when the Guessometer reads, say, 60 miles remaining, I actually have around 60% SOC. This happened too frequently to be coincidence.
My guess is - that means your burn rate is close to 4.8 m/kwh.
1st Leaf : 2/28/2011 to 5/6/2013
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TonyWilliams
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Re: Kudos to the CANbus SOC meter team!

Mon Aug 08, 2011 6:27 pm

evnow wrote:
mwalsh wrote:The Guessometer in my "old bars" car bears a loose resemblance to the actual SOC left in the car. Meaning that sometimes when the Guessometer reads, say, 60 miles remaining, I actually have around 60% SOC. This happened too frequently to be coincidence.
My guess is - that means your burn rate is close to 4.8 m/kwh.

I get 4.12 m/kWh for 61 miles traveled.

198 units burned, of 281 capacity, is 70.46263%

of 21 "usable" kWh's

14.79715 kWh burned

61 miles divided by 14.79715 equals 4.12241547 miles/kWh

Oh, forgot to add, THANKS to Gary, Robert, et al (and for also meeting me impromptu Friday in the O.C.) for all your hard work to make this something that I can actually put in my car.

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garygid
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Re: Kudos to the CANbus SOC meter team!

Mon Aug 08, 2011 7:15 pm

Very pleased to be useful. :D

My car has charged to 279 and and once to 280.
Even with those, the top Bar does not have "full" energy
and goes down quickly.

I believe that this is most likely if the SOC value is based on
battery voltage, where the voltage drops quicker in the "full"
condition, and less slowly in the mid-range.

Wath out that the bottom 10% (or so) is also not always
all usable, or disappears far more quickly than one expects.
See SOC/GID-Meter and CAN-Do Info
2010 Prius
2011 LEAF, 2014 Tesla S85
2018 & 2019 Tesla Model 3
PU: SDG&E
Solar PV: 33 x 225W -> 7 kW max AC
Craigslist: Xm5000Li Electric Motorcycle

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mwalsh
Posts: 9753
Joined: Thu Apr 22, 2010 10:10 am
Delivery Date: 05 Jan 2011
Leaf Number: 0213
Location: Garden Grove, CA

Re: Kudos to the CANbus SOC meter team!

Tue Aug 09, 2011 10:37 am

garygid wrote:Very pleased to be useful. :D

My car has charged to 279 and and once to 280.
Even with those, the top Bar does not have "full" energy
and goes down quickly.

I believe that this is most likely if the SOC value is based on
battery voltage, where the voltage drops quicker in the "full"
condition, and less slowly in the mid-range.

Wath out that the bottom 10% (or so) is also not always
all usable, or disappears far more quickly than one expects.
Good to know.

I have some figures from today's drive to work. It wasn't as clean a drive as yesterday's.....some stop and go traffic for a handful of miles followed by a handful of miles at 70mph to get back on schedule

bar miles % raw

12 0 98.5% 277
11 2.3 90.7% 255
10 11.8 82.9% 233
9 17.9 75.4% 212
8 24.4 67.2% 189

8 30.6 60.8% 171 (arrival at work)

8 30.6 60.4% 170
7 31.5 58.7% 165
6 40.1 51.6% 145
5 46.4 43.4% 122
4 54.8 35.5% 100

4 61.0 30.2% 85 (arrival at home)

Drive home was very heavy stop-and-go most of the way, with use of the A/C the entire journey.
2011 Blue Ocean SL with 86,000 miles
2015 pack on 12/30/15
Tinted windows
Bosch AGM 12v
Ecopia 422+ tires
L1 EVSE upgrade
FIAMM horns
Superbright LED lighting
2013 sun visors
LED shifter
Heated seats
GT-R map lamp lenses
Altima illuminated door switches

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