MSXIV Board Layout

Owned by Micah Black
Last updated: Apr 04, 2020
3 min read

For all the boards in MSXIV, we need to figure out where they will be going in the car. This page will outline the required electrical enclosures.

Boards in Each Enclosure

Battery Box

  1. BMS Carrier

  2. BMS Current Sense

  3. 3x BMS AFEs

  4. Relay Sense Board

Rear Electrical Enclosure

HV and LV

HV Side

  1. DC-DC

  2. Motor Controller Interface/Precharge

  3. (Motor Fuses)

  4. (Motor Contactor)

LV Side

  1. Rear Power Selection

  2. Rear Power Distribution

  3. Charger Interface

    1. This interfaces with isolated components of the HV equipment. Would be good to design this board to feature more robust isolation.

Front Electrical Enclosure

This enclosure will be located roughly in front of the infotainment display. Interiors will figure out a plan for accessibility, and are thinking about a few options - move the display out of the way, move the electrical enclosure to a ‘glove box’ type of opening, etc.

 

  1. Center Console

  2. Front Power Distribution

  3. DC-DC Converter for Monitor Power

Driver Controls

This is not strictly 1 enclosure, it is multiple boards in the same general area of the car. All boards will be mounted in their own locations with to start, a 3D printed removable isolation shields around them. If tie permits, panel mount MX150L connectors will be used on the outside of their enclosures and will use robust, water resistant enclosures.

  1. Steering Interface

    1. This board is mounted on the steering wheel with the connections going through the clockspring

  2. Steering Stalk Connector

    1. This is just an adapter to a microfit connector for the clockspring

    2. Will be mounted on the steering stalk

  3. Pedal

    1. Mounted near the rotation point for the acceleration pedal and the brake pedal

  4. Pi Zero and Driver Display

    1. Mounted in a ‘front dash’ area, need to discuss with interiors on exact placement, but will likely be mounted directly with the display. A single output from the power distribution should power both this board and the Driver Display.

Solar Enclosure

  1. 2x Solar Sense

  2. 11x MPPTs

Motor Controllers

  1. Motor Controller, heat sink and fan

    1. Connectors mounted towards the bottom of the car

    2. Heat sinks should be mounted for natural convection optimization (fins in vertical direction)

 

NOTES

  • Rear Electrical Enclosure and Battery Box will share a common wall

  • Battery Airflow path will go through the power distribution box then through the firewall, then through tubes out to the rear of the car.