Cruise Control for CS791z Software Engineering for Real Time Systems

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Cruise Controlfor CS791zSoftware Engineering
for Real Time Systems

• By
• Laurel Jones

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Toyota Cruise Control
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(No Transcript)
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Simple Cruise Control
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Road Profile
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(No Transcript)
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Create Road Profile
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Main Screen
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Run Profile
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Novelty of My Program

• Combining a Cruise Control System with a Fuzzy
  Controller to create smooth transitions between
  speed adjustments.
• How is this done on most cars??
• Fuzzy Controllers are in use in elevators and the
  Tokoyo Subway?)

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A Bit About Fuzzy Logic

• Fuzzy Values are between 0 and 1.
• Allow for incremental adjustments rather than
  just on/off.
• Crisp (real world) values are converted into
  fuzzy values run through an algorithm (rules)
  then converted back to crisp values.

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A Light Switch
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Fuzzy Rules
LLarge MMedium SSmall
IIncreasing DDecreasing NNegative
PPositive Error Difference between the current
speed and the desired speed. Rate Is the cars
speed increasing, decreasing or maintaining.
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Fuzzy Petri Net
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Class Diagram
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System Sub-System
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Conclusion/Future Work

• Writing the code that goes behind the screen
  shots.
• Any ideas about C graphics for the profile.
• Perfect the Rules