System for testing a tire to avoid a torque steer effect

US4479382A · kind A · utility

Assignee

• The Goodyear Tire & Rubber Company · US

Inventors

• Richard J. Greenhorn · Stow, US
• William Randall Dutt · Copley, US
• Leonard A. Vandale · Akron, US
• Douglas L. Winslow · Kuala Lumpur, MY
• David A. Glemming · Akron, US
• John Siegfried Muhl · Norton, US
• Michael Heisler · Lansing, US
• Jack E. Brown · Akron, US

Key dates

• Filing date: Apr 5, 1982
• Grant date: Oct 30, 1984
• Expiry date: Apr 5, 2002

Classification

• Technology area (CPC G): Physics
• CPC primary: G01P3/60
• WIPO field: Measurement
• WIPO sector: Instruments

Abstract

System for testing pneumatic tires. A tire that revolves under a load is deformed at the area in which it meets the roadway. Such a deformation results in the tire having an effective rolling radius that is shorter than the radius it has while static and/or unloaded. According to the invention, tires are tested by determining their effective rolling radii. When tires having similar effective rolling radii are used on an automotive vehicle, the undesirable torque steer effect is thereby reduced.