Design Review

14/02/2024

Attached is the design review. This was seen by senior members of the team to critique with the intention of solving these problems by the final design report. Feedback listed below:

Meeting Feedback/Notes

APPS - Acceleration Pedal Position Sensor
Reasons for 2 not 4
Update peak power for the AMK motors
Specific motor type
3 phase AC to motor DC to inverter
Field weakening - Back EMF = input voltage at a point - Look into
Estimate accu output rather than max motor output - 105a 4 seconds
Add link to datasheet to design review
Control algorithm of inverter - PWM
Add block diagram for m&i
No protection for inverter - plans?
Design parameters for container - ipX2, Fire retardancy (UL94), high voltage
Connectors for container
Inverter wiring diagram
Current that the inverter can handle
USM has made changes - Check if it fits - info avail next week
M&I cooling requirements - state them

Reasons for regen:
- Full efficiency credit from any regen at all
- Braking distribution looks to be 70-75% front (72.3%)
- Smaller braking system

Emergency Braking tests
Brake torque from OL into graph data from amk
Regen Field Tuning
CarMaker model for data OL doesnt give
Supercapacitors? - Why or why not
Use grip to get braking torque
A low enough regen effect would allow for accelerator pedal regen
Charging current roughly 102A