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Advanced Energy Vehicle

Advanced Energy Vehicle. External Sensors Reference: AEV Lab Manual External Sensors Grading Guidelines. FINAL DESIGN. AEV Project Objective (Problem Definition). Initial Concepts (Brainstorming). experimental Research. (Programming). (System Analysis). PT 1 PT 2 PT 3 PT 4.

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Advanced Energy Vehicle

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  1. Advanced Energy Vehicle External Sensors Reference: AEV Lab Manual External Sensors Grading Guidelines

  2. FINAL DESIGN AEV Project Objective (Problem Definition) Initial Concepts (Brainstorming) experimental Research (Programming) (System Analysis) PT 1 PT 2 PT 3 PT 4 Present AEV Design

  3. Lab Objectives • The objectives of this lab are: • Become familiar with the external sensor hardware components • Become familiar with troubleshooting techniques • Program the function calls in controlling the AEV using external sensors

  4. External Sensors • The importance of external sensors on the AEV is to provide real-time information being provided to the Arduino for autonomous vehicle operation • This is known as feedback control. • The sensor that will be the focus of today’s lab is the Reflectance Sensor

  5. Reflectance Sensors • The sensor will produce a low voltage due to the reflectance of the aluminum tape and produce a high voltage due to the dark color of the wheel.

  6. Mounting the Sensor • Make sure to use the small #2 bolt and zip tie to securly mount the sensor on the opposite side of the wheels on the vertical support • The closer the sensor is to the wheel, the better voltage reading the sensor will usually have. • Optimal distance for readings is 3 mm as illustrated. Optimum Too far away

  7. Making the Connections • Take careful consideration where reflectance sensor is attached to the Arduino!! • READ AEV Lab Manual • For proper orientation • pin connections • ASK if uncertain! Sensor Connection

  8. External Sensors External Sensors Lab Procedure Guidelines: • The following slides are a summary of the procedure guidelines and the basic command for the reflective sensor

  9. Arduino Programming Sensor Command Available Command • goToMark(wc); • One Argument; works specifically with reflectance sensor • wc = wheel counts • Example: • motorSpeed(4,30); **Sets all motor speeds to 30% full power • goToMark(44); **Continues the last command for 44 wheel counts. • Each wheel has 8 counts. Circumference = 3.902 inches • Therefore, (44 marks)*(3.902/8 inches) = 21.46 inches traveled.

  10. Arduino Programming Basics Lab Lab Activity • Follow Lab Procedure document • Team: • Install reflectance wheel count sensor to the sample AEV • Follow AEV Lab Manual Testing the Reflectance Sensor • Get instructional team verification • Individual: • Program the following commands requested in procedure document and run the program on the Desktop Stand

  11. Arduino Programming Basics Lab Lab Activity cont. • Follow Lab Grading Guidelines • Individual: • Reprogram the requested commands • Get instructional team verification • Team: • Reprogram the requested commands • Verify program and sensor on Desktop Stand • Get approval to operate on Classroom Stand and Test • Follow PROPER TESTING PROCEDURE • Get instructional team verification • Make sure to include in your TEAM summary report

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