SIMULATION OF TRACTOR-SEMITRAILER HANDLING

A COMPUTER MODEL OF A TRACTOR SEMITRAILER IS DEVELOPED WHICH ALLOWS TRANSLATION, YAW, ROLL, AND PITCH OF BOTH TRACTOR AND SEMITRAILER. LATERAL AND FORE-AND-AFT WEIGHT TRANSFER IS DISPLAYED. WHEEL DYNAMICS ARE INCLUDED, AND EFFECTS OF WHEEL SLIP, SLIP ANGLE, VEHICLE SPEED, AND TIRE LOAD ARE USED IN THE CALCULATION OF THE TIRE FORCES. THE VEHILCE IS MANEUVERED BY A SIMULATED DRIVER WHO SPECIFIES THE FRONT-WHEEL STEER ANGLE AND THE BRAKE TORQUES. THE ABILITY OF THE MODEL TO ACCURATELY DESCRIBE A REAL VEHICLE IS STUDIED BY USING THE MODEL TO SIMULATE A FULL SCALE EXPERIMENTAL TEST. THE MODEL IS ALSO USED TO STUDY TWO TYPES OF PROPORTIONAL BRAKING FOR A TRACTOR-SEMITRAILER EXECUTING A LARGE-RADIUS TURN ON A WET ASPHALT TRACK.

• Supplemental Notes:
  • NO SAE-720922
• Corporate Authors:

  Cornell University

  School of Civil and Environmental Engineering
  Ithaca, NY  United States  14853
• Authors:
  • Krauter, A I
  • Wilson, R K
• Publication Date: 1972-10

Subject/Index Terms

• TRT Terms: Brakes; Information processing; Mathematical models; Pitch (Dynamics); Slip (Fluid mechanics); Speed; Tractor trailer combinations; Trailers; Vehicle performance; Wheels; Yaw
• Uncontrolled Terms: Models; Slips
• Subject Areas: Highways; Motor Carriers; Safety and Human Factors; Vehicles and Equipment;

Filing Info

• Accession Number: 00224562
• Record Type: Publication
• Source Agency: Highway Safety Literature
• Files: TRIS
• Created Date: Apr 3 1974 12:00AM