PRISUMDATA SP12 Group Report Report Presentation
11
http://solarcar.stuorg.iastate.edu [email protected] 515-294-0899 VEHICLE DYNAMICS TELEMETRY SYSTEM (VDTS) Evan Stumpges, Jordan Dyar, Paola Furlanetto Design Presentation
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Transcript of PRISUMDATA SP12 Group Report Report Presentation
http://solarcar.stuorg.iastate.edu
515-294-0899
VEHICLE DYNAMICS TELEMETRY SYSTEM (VDTS)
Evan Stumpges, Jordan Dyar, Paola Furlanetto
Design Presentation
http://solarcar.stuorg.iastate.edu
515-294-0899
TEAM PRISUM - PROJECT CUSTOMER
PrISUm Solar Car Team • Multidisciplinary student-run organization
• Building 11th generation car, “Hyperion”
• 1650 mile cross-country race in July
• Vehicle dynamics board will be installed in car
• Plug & play 12V vehicle dynamics system
• CAN protocol communication
• Small, light, durable, and vibration resistant
• Wide temperature range
• Convenient mounting at CG of vehicle
• User friendly Windows software to display data
Project Requirements
http://solarcar.stuorg.iastate.edu
515-294-0899
SPARKFUN 9 DOF RAZOR IMU
• Overcoming poor device documentation
Key Technical Challenge
Specificities
• Requires initialization delay
• 100,000 TCY for a crystal of 10 MHz
• Chosen baud rate: 19200bps
• Data format: $accelx,accely,accelz,gyrox,gyroy,gyroz,magx,magy,magz#
http://solarcar.stuorg.iastate.edu
515-294-0899
DESIGN IMPLEMENTATION
• Manage the IMU’s peculiarities
• Transmit CAN messages
Key Technical Challenges
Development Environments
• Altium Designer
• MPLAB X
http://solarcar.stuorg.iastate.edu
515-294-0899
CASE COMPONENTS HexPly 8552 Epoxy Matrix • Internal Size: 2.25in x 3.8in x 0.8in
• Tensile Strength: 276 ksi
• Compression Strength: 230 ksi
• Resin Content: 34%
Case CAD drawing
Coordinate convention
http://solarcar.stuorg.iastate.edu
515-294-0899
ASSEMBLY PROCEDURE
• Make mold
• Cut/Apply fiberglass over mold
• Place on flat plate with breather and cover
• Attach vacuum fitting and test
• Cook about 4 hours at 300°F
• Remove mold/finishing touches
Build Order
http://solarcar.stuorg.iastate.edu
515-294-0899
FINISHED CASE Approximated
Center of Gravity
• Length: 5.78 in
• Width: 4.31 in
• Height: 1.85 in
External Dimensions
Total Weight • Weight: 0.25 lb
http://solarcar.stuorg.iastate.edu
515-294-0899
VISUAL BASIC WINDOWS SOFTWARE
CANanator • Hex byte hyperterminal can send or receive data
• CAN message list view for incoming messages
• Real time sensor output data display
http://solarcar.stuorg.iastate.edu
515-294-0899
Breadboard Revision II
ON GOING DEVELOPMENT
• Match the real dimensions of the IMU
• Include a plug for ICSP (In Circuit Serial Programming)
Advised to purchase hardware for working with the Arduino environment
• Allow accessing directly the IMU controller
• Enable modifications on the accelerometer full scale range and IMU firmware
Mounting the VDTS at Hyperion
Visual Basic software additional updates
• Drill four holes in long part of the flanges
• Provide max and average values along with graphs
• Sensor calibration
• Hardcoded values stored in the Windows registry
