CONTROLLER

AGENDA• Hyperloop

• Competition

• Team

• Printed Circuit Board

• Sensor Data

• Actuation

• Communication

• Conclusion

• Questions

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Hyperloop

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INTRODUCTION• Celeste Bean

• Connor Buckland

• Ben Hartl

• Cameron McCarthy

• Connor Mulcahey

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Hyperloop

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HYPERLOOP• Cities < 700 miles apart

• Max speed of 760 mph

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Hyperloop

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HYPERLOOP• Depressurized steel tube

• Magnetic levitation

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COMPETITION• Organized by Elon Musk and SpaceX

• Design and build a proof of concept pod

• Compete in Summer 2016 on 1-mile long track

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Hyperloop

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COMPETITION

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Hyperloop

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DESIGN WEEKEND• 1200 original applicants

• 1 of 120 teams invited to Design Weekend at Texas A&M

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Hyperloop

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DESIGN WEEKEND• 1 of 30 teams admitted to the final stage of the competition

• Few teams with a Computer Engineering Team

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UCSB TEAM

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UCSB TEAM• 23 undergraduate students

• Computer Engineering

• Computer Science

• Mechanical Engineering

• Electrical Engineering

• Physics

• Economics

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UCSB TEAM• $50,000 budget raised from donors, crowd funding, and UCSB

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UCSB TEAM• Length: 14’ (4.3m); Width: 3’5” (1.0m); Height: 3’4” (1.0m)

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Hyperloop

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PRINTED CIRCUIT BOARD

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• 8.1” x 8.1” printed circuit board

• (2) ARM Cortex-M4

microcontrollers

• 430 components

• Designed for flexibility

• Sensor Data

• Telemetry & communication

• Actuation

Hyperloop

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SENSOR DATA

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• Must report:

• 3D position, velocity, and acceleration

• Roll, pitch, and yaw

• Temperature

• Pressure

• Power consumption

Hyperloop

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NAVIGATION SYSTEM

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• Find position, velocity, and acceleration

• The tube has reflective strips every 100’

Hyperloop

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NAVIGATION SYSTEM

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• Photoelectric sensor detects strips

• 2 inertial accelerometer determine position between strips

• Velocity compared to hard-coded profile for safety

Hyperloop

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ATTITUDE SYSTEM

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• Find roll, pitch, and yaw

• 4 short ranging sensors on the bottom for roll and pitch

• 4 long ranging sensors on the sides for yaw

X Y

Z

Pitch

Roll

Yaw

Hyperloop

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SENSOR LOCATIONS

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• Photoelectric sensors (2) – navigation• Long ranging sensors (4) – data acquisition• Short ranging sensors (4) – stability• System Circuit Board

Hyperloop

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BATTERY MANAGEMENT

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• Detects battery packs’ voltage levels

• Issues alerts is voltage is too low or high

• Determines current draw to calculate power consumption

Hyperloop

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MAGNETIC LEVITATION

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• Controls 6 Arx Pax H3.0 magnetic levitation engines

• Interface with motors via ASi BAC motor controller

• Programmable via ASi BACDoor software

• Motor speed controlled using analog 0 – 5 V signal

Hyperloop

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TRANSIT ACTUATION

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• Raises and lowers the pod to various heights to levitate or rest upon wheels

Hyperloop

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TRANSIT ACTUATION

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• Motor activates service propulsion wheel to move pod through tube

Hyperloop

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BRAKE ACTUATION

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• Air valve actuates eddy current braking system

• Rotates the magnetic arrays

Eddy current braking for high speed Friction brakes to come to full stop

Hyperloop

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BRAKE ACTUATION

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• Air valve actuates secondary friction brakes

Hyperloop

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EMERGENCY PROTOCOL

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• Emergency state activated by:

• Emergency pod stop command

• Large deviations in velocity profile

• Protocol

• Engage eddy current brakes

• Engage frictional brakes at lower speeds

• Disengage brakes once pod stop completed

• Disengage magnetic levitation engines

• Use linear actuator to activate service propulsion wheels

• Engage service propulsion motor until tube exit completed

Hyperloop

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COMMUNICATION

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• Must communicate sensor data once per second

• SpaceX provides a Network Access Panel (NAP) that provides wireless

network access

• Ethernet module on printed circuit

board sends data

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NETWORKING APPLICATION

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• Developed secure

application level

protocol

• Displays and logs

sensor data

• Sends control

messages

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CODE ARCHITECTURE

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• Managed a git repository for version control

• Ensures that code remains clean

• Avoids merge conflicts

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CONCLUSION

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• Thank you to Dr. John Johnson and Will Miller

• Thank you to Elon Musk and SpaceX

• Thank you to our generous sponsors

Jonathan Siegel Tilt Contributors

Hyperloop

Competition

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Printed Circuit

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Conclusion