CONTROL OF HIGHWAY VEHICLES FOR MINIMUM FUEL CONSUMPTION OVER VARYING TERRAIN

In this paper we develop a feedback algorithm for driving a highway vehicle for minimum fuel consumption. The algorithm allows the driver to choose an arbitrary steady state velocity for a level road, but modifies the speed for optimal fuel consumption on various grades. The algorithm is derived from the Pontryagin maximum principle to provide a mathematically optimal performance subject to the driver's choice of a trip time limit. Computer simulation is used to illustrate the implications of this analysis for gear shifts, braking and throttle settings as the road grade changes. /Author/TRRL/

• Corporate Authors:

  Pergamon Press, Incorporated

  Maxwell House, Fairview Park
  Elmsford, NY  United States  10523
• Authors:
  • SCHWARZKOPF, A B
  • Leipnic, R B
• Publication Date: 1977-8

Language

• English

Media Info

• Features: Figures; References;
• Pagination: p. 279-286
• Serial:
  • Transportation Research /UK/
  • Volume: 11
  • Issue Number: 4
  • Publisher: Pergamon Press, Incorporated

Subject/Index Terms

• TRT Terms: Algorithms; Automobiles; Braking; Digital computers; Drivers; Dynamics; Energy; Fuel consumption; Gears; Highway grades; Mathematical analysis; Mathematical models; Minimization; Simulation; Slopes; Speed; Vehicle performance; Vehicles
• Uncontrolled Terms: Grades; Minimum
• ITRD Terms: 1057: Air transport network; 8673: Digital computer; 5473: Dynamics; 232: Fuel consumption; 2806: Gradient; 6473: Mathematical model; 9046: Minimum; 9103: Simulation; 5408: Speed
• Subject Areas: Energy; Highways; Safety and Human Factors; Vehicles and Equipment; I96: Vehicle Operating Costs;

Filing Info

• Accession Number: 00168131
• Record Type: Publication
• Source Agency: Transport and Road Research Laboratory (TRRL)
• Files: ITRD, TRIS
• Created Date: Jun 28 1978 12:00AM