High Voltage Electronics Enclosure (HVE) Wiring
All the electronic components found in the high-voltage electronics enclosure can be found here.
DC-DC Converter (Power Supply)
The DC-DC converter is what takes power from the high voltage (HV) power (~120V nominal) from the battery and steps it down to 12V to provide power to the low voltage system.
The DC-DC converter is connected to the secondary power board which is connected to the fusebox
Secondary Power Board / Supplemental Power Board
The secondary power board will either be powered by the DC-DC converter or 2 supplementary batteries.
During startup, the board will be powered by the supplemental battery, but once the ignition sequence is done and BPS has declared it safe for the car’s system to be powered by our battery pack, the secondary power board will switch what’s powering the fusebox to the DC-DC converter.
Fuse Box B
There will be one 6-port fusebox inside the HV Enclosure to power all of the HV-related boards and components. The fusebox will be powered by the Secondary Power Board.
MPPT Board (x3)
The MPPT board is what measures the current of each subarray
Essentially it tries to ensure that the we are getting the most power out of each subarray
Since we have three subarrays, we need three MPPT boards (hence MPPT A-C)
The MPPT boards talks to each other and the other boards in the car through Controller Area Network (CAN)
Contactor Driver Board (x2)
There are two contactor drivers located inside the EE.
- Array Contactor Driver
- Motor Contactor Driver
These boards control the HV Contactors and are part of the ignition sequence.
Kilowac Contactors (x2)
- Array Contactor
- Motor Contactor
Welcome to the University Wiki Service! Please use your IID (yourEID@eid.utexas.edu) when prompted for your email address during login or click here to enter your EID. If you are experiencing any issues loading content on pages, please try these steps to clear your browser cache.