THE DEVELOPMENT OF TWO SIMPLE TIRE WARNING DEVICES

This paper describes two types of tire pressure warning devices, TWD-I and TWD-II, that are low in cost and are easy to install on a vehicle. TWD-I has a buzzer and a dry-cell battery that are attached on the inside of the wheel center cap. They are connected to a pressure switch that is attached to the air valve stem after the tire is filled with air to the prescribed pressure. If the pressure drops below a certain level, the switch sends a signal that energizes buzzer. TWD-II is a kind of monitor that indicates a drop in tire pressure by changing the color of the wheel center cap through the action of a diaphragm and a magnet. In comparison with conventional innovations, the two new warning devices offer the advantages of lower cost and easier installation on vehicle.

• Availability:
  • Find a library where document is available. Order URL: http://worldcat.org/issn/01487191
• Supplemental Notes:
  • International Congress and Exposition, Detroit, Michigan, February 27-March 2, 1984.
• Corporate Authors:

  Society of Automotive Engineers (SAE)

  400 Commonwealth Drive
  Warrendale, PA  United States  15096
• Authors:
  • Nishimura, H
• Publication Date: 1984

Media Info

• Features: Figures; Tables;
• Pagination: 5 p.
• Serial:
  • SAE Technical Paper
  • Publisher: Society of Automotive Engineers (SAE)
  • ISSN: 0148-7191
  • EISSN: 2688-3627
  • Serial URL: http://papers.sae.org/

Subject/Index Terms

• TRT Terms: Building; Costs; Facilities; Inflation; Installation; Technological innovations; Tire pressure; Tires; Warning devices
• Subject Areas: Construction; Finance; Maintenance and Preservation; Safety and Human Factors; Vehicles and Equipment;

Filing Info

• Accession Number: 00393017
• Record Type: Publication
• Source Agency: National Highway Traffic Safety Administration
• Report/Paper Numbers: SAE 840067, HS-037 641
• Files: HSL, USDOT
• Created Date: Feb 28 1985 12:00AM