[Caevlist] Route Planning

Gary Graunke gary at whitecape.org
Tue Mar 6 09:57:42 PST 2018


The word I got from a corporate guy at our Nissan Leaf unveiling at last years NDEW event at Washington Square, was that they are abandoning the batteries from their joint venture with Hitachi in favor of the LG Chem ones that others are using. 

While the longer range (yes, about 225 to be competitive with the Bolt) is important, the most important aspect of this change is that they are going to a liquid cooled battery. The lack of good battery thermal management is not only responsible for their early demise, but also makes it impossible to use the car for long trips. The few times I have made trips in the summer to Southern Oregon, I had to get a hotel because my Leaf temperature was at 10 bars and I could not get more than 4 fast charges in. (You would think they would slow the charge so at least it didn't get past, say 6 bars. Slower DC charging is still way faster than level 2 charging). 

Gary 

-----Original Message-----
From: caevlist-bounces at rdrop.com [mailto:caevlist-bounces at rdrop.com] On Behalf Of Alan Batie
Sent: Monday, March 5, 2018 9:26 PM
To: OEVA; Corvallis EV CLub
Subject: [Caevlist] Route Planning

While waiting for Nissan to find a leaf that actually has the ProDrive they were pushing so hard a couple of months ago, I've been thinking about the difference between 40 and 60kWh packs and the effect it might have on charging, and because of the spacing of charging stations, I'm not sure there is that much difference.  Some of course, but...

First, expected range: my rule of thumb is the real freeway range is 80% of the spec.  Of that, you don't really want to go below 20%, so your first stop range is 80% of that.  Afterwards, since you're only charging to 80%, you are at 60% of your real range to get to the next charging station.

Given that, we have:

Leaf/40kWh: 150/120/96/72
   * 120 miles real range
   * 96 miles effective to first stop
   * 72 miles to each stop after
   * Caveat: to the destination you might push it all the way to 96

Leaf/60kWh: 225/180/144/108
   * I'm just guessing the 225 based on 50% bigger battery

Bolt/60kWh: 238/190/152/114
   * just for comparison, since you have to find CCS stations

There are three destinations of interest to me: Portland, Seattle and Stanfield (Hermiston), where my parents and sister are.  For "Portland", I used a place in Camas I've gone to before, as a maximum for my typical running around in Portland when there.

Given that background, this is how it looks like road trips will play out; it looks like if the 40kWh Leaf can handle 3 serial fast charges, it will work out.  In most cases, a trip to Portland will probably be a single charge in Portland somewhere and push it to the wire getting home, maybe a brief bump charge in Salem.  That should be a lot easier on the battery if it can handle 1 charge in the summer without getting too hot...

Chademo
     Corvallis -> Seattle
	40kWh (150/120/96/72)
	    Salmon Creek (101)
	    Centralia (76)
	    Fife (56)
	    16th Ave parking (28)
               (a charging place near a friend's house in Beacon Hill)

	60kWh (225/180/144/108)
	    Woodland (116)
	    Fife (116)
	    16th Ave parking (28)

     Corvallis -> Camas -> Corvallis
	40kWh (150/120/96/72)
	    Burgerville (91)
	    Camas (22) (no charge)
	    Wilsonville (43 [65])
	    Home (68)

	60kWh (225/180/144/108)
	    Camas (110) (no charge)
	    Camas -> Burgerville/205 (22 [132])
	    Home (91)

	    or

	    Burgerville (91)
	    Camas (22) no charge
	    Salem Kia (70 [92])
	    Home (40)

     Corvallis -> Parents
	40kWh (150/120/96/72)
	    Burgerville (91)
	    Hood River (60)
	    Arlington (74)
	    Parents (53)

	60kWh (225/180/144/108)
	    Cascade Locks (128)
	    Arlington (94)
	    Parents (53)

CCS
     Corvallis -> Seattle
	60kWh (238/190/152/114)
	    Woodland Walmart (116)
	    Tacoma Mall (110) (???)
	    16th Ave parking (33/143)
               * Might be able to skip the stop in Tacoma

     Corvallis -> Camas -> Corvallis
	60kWh (238/190/152/114)
	    Camas (110) (no charge)
	    Camas -> Tonkin Kia (32 [142])
	    Home (91)

     Corvallis -> Parents
	60kWh (238/190/152/114)
	    Wood Village Walmart (100)
               * have to stop here because there's no CCS
                 until Arlington
	    Arlington (122)
	    Parents (53)




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