FSGP 2019 Retrospectives

Broken Controller Boards and Programmers

• Could not find a working controller board and a working programmer
• Bring up backup CBs and flash programmers before the race
• Identify the causes of broken CBs and programmers

BPS

• The carrier and the AFEs should be fully tested before the race
• We should have at least one backup carrier and one or two backup AFEs for quick replacement
• Backup ICs are necessary

Flashing the Controller Boards

• Experienced difficulty in flashing controller boards in hard-to-reach places (e.g. pedal board)
• Investigate firmware update OTA via CAN

Motor Controller Interface

• Unable to consistently read motor speed and temperature data on the motor CAN bus
• Investigate MCU with two CAN controllers
• Improve SPI-CAN driver

Waterproofing

• The thunderstorm was a concern in the beginning of the race
• The motor controller interface was damaged due to water

Telemetry

• The LTE dongle provided a very reliable internet connection for telemetry purpose
• Considered using long-range Wi-Fi for telemetry but the equipments are very expensive

Solar

• Solar sense was not functional during the race due to firmware issues
• Investigate behaviour of the MPPTs (i.e. pack voltage vs. charging current)
• Did not have any documentation regarding the solar enclosure

Pedal Calibration

• Needed to calibrate the brake pedal via a programmer multiple times
• Investigate calibrating the brake via CAN