View Single Post
Old 06-27-2012, 09:14 AM   #9 (permalink)
Daox
Administrator
 
Daox's Avatar
 
Join Date: Dec 2007
Location: Germantown, WI
Posts: 11,203

CM400E - '81 Honda CM400E
90 day: 51.49 mpg (US)

Daox's Grey Prius - '04 Toyota Prius
Team Toyota
90 day: 49.53 mpg (US)

Daox's Insight - '00 Honda Insight
90 day: 64.33 mpg (US)

Swarthy - '14 Mitsubishi Mirage DE
Mitsubishi
90 day: 56.69 mpg (US)

Daox's Volt - '13 Chevrolet Volt
Thanks: 2,501
Thanked 2,587 Times in 1,554 Posts
I am not using voltage as a low charge indicator. I'm aware that that is a horrible way to do things. If that were the case I also would recommend bottom balancing, but it is not. See above for how I am detecting the low charge.

Quote:
Originally Posted by Daox View Post
To determine the low charge cutoff point I am using a current sensor and am counting the amphours out of the pack. I have gone through and capacity tested every single cell in the pack so I know the exact capacity of the cells at a 1C discharge rage (in use it doesn't even pull 1C). So, I will be setting a conservative number to get ~70% DOD on my weakest cell and once that cell hits 70% DOD it will turn off the PHEV kit.
__________________
Current project: A better alternator delete
  Reply With Quote