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Mini Baja Car Data Acquisition System

Mini Baja Car Data Acquisition System. Kendrick Burnett Cody Notaro. Project Objectives. Retrieve data on engine, clutch temperature and input shaft of transmission and input data into excel so that the information can be analyzed and used to determine the optimal clutch setup.

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Mini Baja Car Data Acquisition System

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  1. Mini Baja Car Data Acquisition System Kendrick Burnett Cody Notaro

  2. Project Objectives • Retrieve data on engine, clutch temperature and input shaft of transmission and input data into excel so that the information can be analyzed and used to determine the optimal clutch setup. • Retrieve data from displacement sensors to determine the reactions of the shocks to different terrains and events. Data will then be used to determine the shock valving necessary.

  3. Displacement Sensor Shock • Displacement sensors will be mounted in line with the shocks so that they may measure the travel during a normal run of the car. • The Shock is the same on all four corners.

  4. Thermal and Hall Effect • The thermal sensor will be mounted on the clutch cover so that we may monitor the temperature of the clutches. • The hall effect sensor will be mounted on the transmission cover so we may monitor the input shaft RPM. Thermal Hall Effect

  5. Engine RPM Plug Wire • The Engine RPM sensor will wrap around the spark plug wire to monitor the RPM during a test run.

  6. Sensor Location Displacement Sensor Displacement Sensor Thermal Sensor Displacement Sensor Hall Effect Engine RPM Displacement Sensor

  7. Specifications • 4 Displacement Sensors • 0 – 6.5 inches front • 0 – 7 inches rear • +/- ¼ inch • 1 Rotational Sensor • 200 – 4200 RPM • +/- 50 RPM • 1 Engine RPM Sensor • 1200 – 3600 RPM • +/- 50 RPM • 1 Temperature Sensor • 10 – 80 C • +/- 5 C

  8. Analytical Component • Rotational Sensor • 200 – 4200 RPM • 13.3 – 280 Hz w/ 4 Bolts

  9. Analytical Component • Engine RPM Circuit • 1200 – 3600 RPM • 20 – 60 Hz

  10. Analytical Component • Temperature Circuit • 10 – 80 C (1k – 20k ohms) • 1 – 4.167V ( 10 – 80 C) • ~ .27 C/bit • R1 = 4K Resistor • Vout = Vcc*Rvar/(R1 + Rvar)

  11. Analytical Component • Software Algorithm • Data will be saved to a memory unit available for the HC12 • Data will be transmitted to a pc program where the data will be interpreted and exported to an excel document

  12. User Interface

  13. Kendrick: Testing Everything Else Cody: Mounting Fabrication Testing Division Of Work

  14. Work Completed • Obtained Sensors • Sensor Analysis • Limited Testing of parts • Circuit Design

  15. HC12 Software PC Software Circuit Implementation Testing Installation on Baja car More Testing Work To Be Completed

  16. Test Plan • Test each Sensor for Accuracy • Temperature Sensor – Temperature Chamber • Input Shaft Rotational Sensor – Test Fixture • Engine RPM – On car testing • Displacement Sensors – Test Measurements

  17. Power Consumption • Power Consumption • ~300 mW HC12 • ~3 mW Temperature Sensor • ~5 mW Displacement Sensor • ~1 mW 555 timer • Total Power Consumption ~310 mW

  18. System Cost

  19. Safety Concerns • Baja Car driving could be dangerous • Nothing Connected to the data acquisition should be dangerous

  20. Questions • ?

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