senior design 1 team shortnose sucker: project auto-shifting bicycle team –tim slevin-vegdahl...
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Senior Design
1University of Portland School of Engineering
Team Shortnose Sucker:Project Auto-Shifting Bicycle
• Team– Tim Slevin-Vegdahl (Fall Team Lead)– Joan Javier (Spring Team Lead)– Cyrus Medrano– Brendan Figuly
AdvisorsDr. Robert Albright
Dr. Peter Osterberg
Industry RepresentativeMr. Walter Harrison
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Introduction• Design a device that will automatically shift
the gears of a bicycle • Benefits new bicyclist and people who do
not know how to properly shift gears on a bicycle
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Scorecard• Mount magnetic sensor onto bicycle after
verifying functionality• Debug Macro Model so we can compile and
burn our CPLD• Complete actuator to be functional (get
motor running off CPLD)
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Testing CPLD
University of Portland School of Engineering
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Additional Accomplishments
• Motor Prep and mounting bracket acquired• Clock circuitry is complete
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Plans• Mount sensor on bicycle• Complete a working Plan C controller• Complete first draft of Final Report
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Testing Magnetic Sensor
University of Portland School of Engineering
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MilestonesStatus Description Original
TargetPreviousTarget
PresentTarget
missed Design Document v. 1.0 Approved
24 Nov 10 24 Nov 10 3 Dec 10
completed Complete Magnetic Sensor 31 Jan 11 31 Jan 11 25 Jan 11
completed Complete Magnetic Sensor Testing
11 Feb 11 11 Feb 11 11 Feb 11
missed Actuator Device Complete 25 Feb 11 25 Feb 11 10 Mar 11
On Track Complete First Draft of Final Report
13 Mar 11 13 Mar 11 13 Mar 11
delayed Complete Actuator Testing 25 Mar 11 25 Mar 11 30 Mar 11
On Track Complete System Testing 1 Apr 11 1 Apr 11 1 Apr 11
On Track Complete v. 0.95 of Final Report
1 Apr 11 1 Apr 11 1 Apr 11
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Concerns/Issues
• MOSIS chip will not be here for Founders Day and the current backup does not function to the specs we need. We will need to make a Plan C controller.
• Our schedule will be behind on the actuation because we need a driver for the stepper motor.
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Reprogramming CPLD
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Conclusions• The CPLD backup not working is causing
major problems• The sensor is ready to be mounted on the
bicycle