12-01-2020, 09:41 AM | #10 |
Gone Wild
Join Date: Sep 2012
Location: Charlotte, NC
Posts: 9,329
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Re: Basic Nissan Leaf 7 module Lithium setup with Generic Chinese BMS
The Zeva does not have built in high current handling, it uses external Solenoids in its default configuration.
You can however use its built in small relays to activate your own disconnect system that does not depend on cutting off the entire pack from the system. If You have a CAN enabled charger that communicates with the BMS, you can get away with a simple small relay to disable the cart in case of LV or HV condition while driving. If You are using a regular charger (not CAN enabled) then you also need a relay do disconnect the charger in case of an LV or HV condition. I have posted a suggestion on how to wire separate relays for both Controller and charger disconnect as well as automatically placing the Zeva in sleep mode when key switch is off and not charging. If You are not comfortable with wiring components or care about automating the sleep mode, a Zeva and CAN enabled charger are more expensive but require fewer parts. You can find more information in this old thread: https://www.buggiesgonewild.com/show...06#post1543106 There are many other threads about using a Zeva BMS that you should search/read for more understanding of the compromises between different implementation choices. Member PingEye3 has some nice diagrams for Zeva setups as well. |
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