Versions Compared

Version Old Version 5 New Version 6
Changes made by

Josh Rong

Rohan Gupta

Saved on

Key

  • This line was added.
  • This line was removed.
  • Formatting was changed.


Page Properties


DescriptionPower Distribution
Target releaseMSXIV
Epic

Jira Legacy
serverSystem JIRA
serverId6df7ba0d-c6df-39f5-b19f-bb96d235af5f
keyHW-234

Document owner

Josh Rong

Project leadsJosh Rong
Team membersAashmika Mali Arshan Khanifar Micah BlackJosh Rong


...

#TitleUser StoryImportanceNote
1DC-DC
  • Convert ~150V to 12VDC at up to 30 A
Must have
2Thermal Control
  • Control temperature of the DC-DC for reliable operations
Must have
3Rear Power Distribution
  • Distribute power to system located closer to battery box
  • Power Path IC will protect the system from under and over voltage
Must have
4Front Power Distribution
  • An extension to Rear Power distribution to distribute power in front enclosure
Must have
5Aux Charger
  • When DC-DC is used as power source it will also charge the AUX battery
Not urgent
6Protection
  • Fuses are implemented for all power channel
  • Over-current protection compactor is there for AUX
Must have

...

[Under construction]

Firmware

On MSXIV power distribution there are some big changes which include tPower distribution is divided into two parts: Front Power Distribution and Rear Power Distribution,

Modules that are shared between Front and Rear:

  • Lights

Modules only needed by Front:

Modules only needed by Rear:

  • BMS Carrier
  • Motor-Controller Interface / Pre-Charge
  • DC-DC 

Notes:

  • The modules that are shared between front and rear will still be implemented as separate modules in the Front and Rear projects, however there will be a shared module that will take input from Front/Rear that will control which switches are used
  • Each module will create an event when they are ready to turn a switch that will be read by MCP 23008's driver that has a lookup for the switches and will write to the corresponding address to flip the switch