Toyota Rav4 EV Forum

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 Post subject: Range Chart
PostPosted: Thu Nov 22, 2012 12:24 pm 
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Joined: Wed Nov 14, 2012 9:50 pm
Posts: 3872
Location: San Diego
Rav4 EV Range Charts

100% Capacity (brand new - no degradation)

https://www.dropbox.com/s/u1mybenqwoaju ... 2.pdf?dl=0

90% Capacity (10% degradation)

https://www.dropbox.com/s/3bcv212xxsfd2 ... 2.pdf?dl=0

80% Capacity (20% degradation)

https://www.dropbox.com/s/ddfjojy6d29q8 ... 2.pdf?dl=0

70% Capacity (30% degradation)

https://www.dropbox.com/s/20y8b9xhdyps3 ... 2.pdf?dl=0


Image


When new:
41.8kWh usable- 100% SOC
35.0kWh usable- 83.0% SOC
1.0kWh unusable- 2.2% SOC





Here's what 50% looks like WHEN NEW, with 10 of 16 fuel bar segments illuminated (at 70% capacity / 30% degradation, it will be in the middle at 8 or 16 fuel bar segments). Disregard what the GOM says:


Image



Miles Gained per Hour Charging @ 87.5% charger efficiency
70F Ambient temperature - hotter or colder will decrease miles gained
Amps/Volts -- Where ---- City Drive ----- 65mph
--------------------- 2.7 miles/kWh - 3.4 miles/kWh

12 / 120 ------- Any ------ 2.8 miles ------ 3.5 miles (stock cable supplied with car)
16 / 120 ------- Any ------ 3.8 miles ------ 4.7 miles (JESLA with NEMA 5-20)
12 / 240 ------ Home ----- 6.8 miles ------ 8.6 miles (EVSEupgrade.com mod to stock cable)
16 / 208 ------ Public ----- 7.5 miles ------ 9.5 miles (2013+ LEAF EVSEupgrade)
16 / 240 ------ Home ----- 8.9 miles ----- 11.2 miles (2013+ LEAF EVSEupgrade)
20 / 208 ------ Public ----- 9.4 miles ----- 11.9 miles (2013+ LEAF EVSEupgrade)
20 / 240 ------ Home ---- 11.0 miles ----- 13.9 miles (Clipper Creek LCS-25)
24 / 240 ------ Home ---- 13.6 miles ----- 17.7 miles (JESLA w/NEMA 14-30 or 10-30)
30 / 208 ------ Public ---- 14.8 miles ----- 18.7 miles (typical public J1772)
30 / 240 ------ Home ---- 17.1 miles ----- 21.6 miles (rare public J1772)
40 / 208 ------ Public ---- 18.5 miles ----- 23.4 miles (Tesla Roadster/Clipper Creek)
40 / 240 ------ Home ---- 22.7 miles ----- 28.5 miles (JESLA w/NEMA 14-50 or 6-50)


Last edited by TonyWilliams on Fri Dec 07, 2012 9:41 pm, edited 2 times in total.

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 Post subject: Re: Range Chart
PostPosted: Thu Nov 22, 2012 6:52 pm 
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Joined: Wed Nov 07, 2012 6:50 am
Posts: 1213
Location: San Jose, CA
EXCELLENT!!! Do you have plans to make this into an iPhone app? How about a credit card size or handy pocket reference guide?

THANKS TONY!!! :mrgreen:

_________________
Owner of 2012 Classic Silver RAV4 EV, 2012 Silver VOLT & 2008 Red C6 Z06
EMW JuiceBox Basic (fully optioned & customized) EVSE L2 charging station
https://enlighten.enphaseenergy.com/public/systems/TRVh161550


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 Post subject: Re: Range Chart
PostPosted: Thu Nov 22, 2012 10:04 pm 
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Joined: Wed Nov 14, 2012 9:50 pm
Posts: 3872
Location: San Diego
Dsinned wrote:
EXCELLENT!!! Do you have plans to make this into an iPhone app? How about a credit card size or handy pocket reference guide?

THANKS TONY!!! :mrgreen:


Check out the "LEAF Energy" app for iPhone and iPad.

The chart will have degradation pages in 5% increments. Yes, you'll be able to print it and take it with you.


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 Post subject: Re: Range Chart
PostPosted: Thu Nov 22, 2012 10:58 pm 
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Joined: Thu Nov 15, 2012 3:04 am
Posts: 69
I have the leaf energy app. When will the rav4 chart be available on it? Very cool thank you


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 Post subject: Re: Range Chart
PostPosted: Thu Nov 22, 2012 11:41 pm 
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Joined: Wed Nov 14, 2012 9:50 pm
Posts: 3872
Location: San Diego
HD172 wrote:
I have the leaf energy app. When will the rav4 chart be available on it? Very cool thank you


Well, I probably have a few months of gathering data before that point. But yes, I believe there will be a Rav4 version.


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 Post subject: Re: Range Chart
PostPosted: Fri Nov 23, 2012 8:01 am 
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Joined: Mon Nov 19, 2012 12:16 am
Posts: 56
I love the concept. I was thinking today that it would be nice to have a consistent way of recording usage, to help with this kind of chart, and better understanding your car's behavior.

I don't have a special meter or way of measuring the amount of kWh used when charging my car each night, but there are a number of data points that can be easily captured when starting the day after an overnight charge:
  • Type of charge (Std., Ext.)
  • Odometer reading
  • Estimated range

Additionally, I'm thinking that recording the SOC level from the "fuel gauge" before charging would be useful.

With these data points, and especially with the odometer reading between charges, we can start to see the trends in our usage.

I'm thinking that a small notepad might be the "app" I use for that, but if anyone's got any suggestions for an iOS app that could be useful for recording this data, I'm open.

Also, are there other data points that can/should be captured?

-Chris

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2012 Plug-in Prius - San Diego, CA.


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 Post subject: Re: Range Chart
PostPosted: Sat Nov 24, 2012 1:14 am 
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Joined: Wed Nov 07, 2012 6:50 am
Posts: 1213
Location: San Jose, CA
There is a new app coming from GM for Chevy Volt and possibly useable by other EVs called "ECO Hub". I think this can be used to record energy consumption and battery charging data. It is my understanding that if you have a Smart Meter at home during EV charging, it can figure out how much energy comes from the grid to charge your EV. Stay tuned . . . :mrgreen:

_________________
Owner of 2012 Classic Silver RAV4 EV, 2012 Silver VOLT & 2008 Red C6 Z06
EMW JuiceBox Basic (fully optioned & customized) EVSE L2 charging station
https://enlighten.enphaseenergy.com/public/systems/TRVh161550


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 Post subject: Re: Range Chart
PostPosted: Sat Nov 24, 2012 8:41 am 
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Joined: Wed Nov 14, 2012 9:50 pm
Posts: 3872
Location: San Diego
Dsinned wrote:
There is a new app coming from GM for Chevy Volt and possibly useable by other EVs called "ECO Hub". I think this can be used to record energy consumption and battery charging data. It is my understanding that if you have a Smart Meter at home during EV charging, it can figure out how much energy comes from the grid to charge your EV. Stay tuned . . . :mrgreen:



Fortunately, we don't need GM's help for any of this. Several current EVSEs will report the kWh. Some folks use a "TED", and you can also use the actual utility meter on the EVSE (my house has a separate utility meter just for the EV).


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 Post subject: Re: Range Chart
PostPosted: Sat Nov 24, 2012 8:50 am 
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Joined: Wed Nov 14, 2012 9:50 pm
Posts: 3872
Location: San Diego
Joyride wrote:
I love the concept. I was thinking today that it would be nice to have a consistent way of recording usage, to help with this kind of chart, and better understanding your car's behavior.

I don't have a special meter or way of measuring the amount of kWh used when charging my car each night, but there are a number of data points that can be easily captured when starting the day after an overnight charge:
  • Type of charge (Std., Ext.)
  • Odometer reading
  • Estimated range


Estimated range won't provide ANY useful information for this endeavor. Sorry. Since these meters (GuessOmeter - GOM) rely on your previous drive to make a current estimate, there's nothing we can do with it.

The good news is that we can assume that all cars are at 100% battery capacity. Odometer readings are definitely needed, and some landmark event:

100% "extended" range charge
80% "normal" charge
Low Battery Warning (LBW)
Very Low Battery (VLB)
Climate Control Limited (CCL)
Turtle (Low Battery Charge - LBC)

Start with trip odometer and economy meter reset.

To get a baseline, the car needs to be operated over a level road at a steady speed. Cruise control on. Temperature as close to 70F as possible (this mitigates TMS power useage) and Climate Control OFF.

Record trip odometer miles and economy. If you have the capability, record the kWh to refill the car.

Simple.

We will need the route to verify it met the "level" part of the equation, and date/time to check weather data. Please, no GOM data.

Alternate plan:

If you can't find a place for steady speed, we can still use miles traveled and miles/kWh, provided there's little regen used, and temps are still near 70F.


Last edited by TonyWilliams on Sun Nov 25, 2012 3:38 am, edited 1 time in total.

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 Post subject: Re: Range Chart
PostPosted: Sun Nov 25, 2012 12:28 am 
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Joined: Fri Oct 12, 2012 8:10 am
Posts: 218
Location: Hermosa Beach CA
TonyWilliams wrote:
Fortunately, we don't need GM's help for any of this. Several current EVSEs will report the kWh. Some folks use a "TED", and you can also use the actual utility meter on the EVSE (my house has a separate utility meter just for the EV).


Excuse my ignorance, what is a "TED"?

For my VW conversion I found some useful Amphour meters but none translated to miles like my RAV does. One displays on my Android and used the GPS to give me Amphrs per mile. I have to do the inverse calculation to compare it with the Miles per KWhrs that I get from my RAV instruments. When I charge either car at a Chargepoint EVSE I get KWhrs used. I don't think I have that from my EV Link but I do have a couple of split coil amp sensors and an interface to a home automation controller that I guess I could clamp on to the legs that feed my EVSE to get amps used for charging at home.

_________________
Drove a RAV4 EV from October 2012 to November 2013
Driving a Smart ED since August 2013 and a Volt since December 2013.
Converting a VW to electric since April 2012
3.8KWhr Solar Panels on roof of home.


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