MSXII Electrical Overview

Owned by Titus Chow
Last updated: Mar 12, 2018

Electrical Diagrams (rev4) -  

Submitted to ASC 2018. The solar slaves are now on their own CAN bus and the charger has been added.

Electrical Diagram (rev3) -  

Major updates: We've fleshed out our solar slaves (most likely I2C) and added a rear lights board. We've also added an analog aux BMS to reduce firmware development. To simplify wiring, relays and fans will be controlled by boards within their respective boxes. The rear camera, BMS strobe, telemetry, solar master, and solar relay will live in a rear enclosure.

Electrical Diagram (Rev2) 

After looking into the number of things that would have to be in the battery box with the previous design, it was decided to create a new box holding Pre-Charge, Chaos and relays. This will allow us to connect or disconnect the battery pack with only 1 HV connector. MPPTs are also distributed to the front and rear of the car assuming that we're using the Nomura MPPTs. 

Electrical Diagram (Rev1) 

High-level overview of HV, LV, and CAN wiring within the car.