OPTIMAL DIGITAL COMPUTER CONTROL OF CASCADED VEHICLES IN HIGH-SPEED TRANSPORTATION SYSTEMS IN THE PRESENCE OF MEASUREMENT NOISE AND STOCHASTIC INPUT DISTURBANCES

A SIMPLE, CONTINOUS-TIME MODEL IS DERIVED FOR A HIGH SPEED TRANSPORTATION SYSTEM IN WHICH THE VEHICLE CAN BE CONSIDERED AS A CASCADE OF INDIVIDUALLY POWERED UNITS. THIS MODEL IS LINEARIZED TO REPRESENT THE SYSTEM BEHAVIOR ABOUT A DESIRED OPERATING CONDITION AND A DISCRETE-TIME FORM OF THIS LINEAR MODEL IS COMPUTED. OPTIMAS DIGITAL CONTROLLERS ARE THEN DERIVED USING KALMANS DYNAMIC PROGRAMMING FORMULATION. THE BEHAVIOR OF THE OPTIMAL, COMPUTER CONTROLLED SYSTEM IS THEN EXAMINED WHEN STOCHASTIC INPUT DISTURBANCES AND MEASUREMENT NOISE ARE INTRODUCED INTO THE MODEL. KALMAN FILTERING TECHNIQUES ARE USED TO PROCESS THE NOISY SYSTEM MEASUREMENTS AND IN THE CASE WHERE ALL THE STATES ARE ACCESSIBLE THE EFFECTS OF OMITTING THIS FILTER ARE SHOWN. THE DIGITAL COMPUTER CONTROL OF THE STOCHASTIC, HIGH-SPEED TRANSPORTATION SYSTEM MODEL IS FOUND TO BE SUCCESSFUL AND, IN PARTICULAR, THE DIGITAL FILTER IS EFFECTIVE IN CONTRIBUTING TO A SMOOTH RIDE WITH FREEDON FROM JERK AND IMPROVED PASSENGER COMFORT.

• Supplemental Notes:
  • Vol 4, No 2, PP 185-198, 6 FIG, 2 TAB, 4 REF, 2 APP
• Authors:
  • Anderson, J H
  • Powner, E T
• Publication Date: 1970

Media Info

• Serial:
  • Transportation Research /UK/
  • Volume: 4
  • Issue Number: 2
  • Publisher: Pergamon Press, Incorporated

Subject/Index Terms

• TRT Terms: Digital computers; Dynamic programming; High speed ground transportation; High speed vehicles; Mathematical models; Speed; Stochastic processes; Traffic simulation; Transportation
• Uncontrolled Terms: Transportation systems
• Old TRIS Terms: Cascade control
• Subject Areas: Operations and Traffic Management; Transportation (General);

Filing Info

• Accession Number: 00227280
• Record Type: Publication
• Files: TRIS
• Created Date: Oct 13 1970 12:00AM