AN AUTOMATIC DRIVER SYSTEM FOR DYNAMIC TESTING OF VEHICLES

This paper presents an overview of the development of an Automatic Driver System (ADS) for vehicle testing with or without chassis rolls dynamometers. The ADS is a microprocessor based analog control system which uses engine or vehicle speed as its feedback signal. Both automatic and manual transmission vehicles can be tested with the ADS on electric chassis rolls dynamometers. The frictional loading function of the dynamometer is used for braking, when necessary, during decelerations. The ADS can control up to three actuators concurrently: the accelerator pedal, the clutch pedal and gear shift lever. The ADS has achieved excellent speed trace accuracy and repeatability, and throttle fluctuations are kept to a minimum without compromising speed trace accuracy. Obvious benefits of the ADS are increased productivity and higher test quality. Cost reductions are also realized through elimination of repeated tests necessitated from errors, inaccuracies and inconsistencies of human operators. The system is being used for production screening as well as for emissions test cell correlation work.

• Supplemental Notes:
  • ISATA 83. Volume 2. International Symposium on Automotive Technology and Automation with particular reference to Electronics and Energy Saving in the Automotive Industries: Product and Process, Cologne, 19-23 September 1983.
• Corporate Authors:

  Automotive Automotion Limited

  42 Lloyd Park Avenue
  Croydon CRO 5SB, Surrey,   England 

  Ford Werke AG

  ,   Germany 
• Authors:
  • King, F G
  • Gable, S V
  • Derr, J H
• Conference:
  • ISATA 83. Volume 2. International Symposium on Automotive Technology and Automation with particular reference to Electronics and Energy Saving in the Automotive Industries: Product and Process, Cologne, 19-23 September 1983.
• Publication Date: 1983

Media Info

• Features: Figures; References; Tables;
• Pagination: p. 590-606

Subject/Index Terms

• TRT Terms: Accuracy; Dynamic tests; Dynamometers; Microprocessors; Productivity; Vehicle tests
• Old TRIS Terms: Automatic driver system
• Subject Areas: Safety and Human Factors; Vehicles and Equipment;

Filing Info

• Accession Number: 00393201
• Record Type: Publication
• Source Agency: National Highway Traffic Safety Administration
• Report/Paper Numbers: HS-037 266
• Files: HSL, USDOT
• Created Date: Mar 29 1985 12:00AM