Patent ID: 7665353
Filing Date: 2010-02-23
Classification: B60C

Abstract:
1. A method for detecting whether kinds of tires provided on a vehicle are different or not based on a rotational velocity of wheels set on said vehicle, said method comprising steps of: calculating velocity ratios of right and left front wheels or velocity ratios of right and left rear wheels at each of velocity regions, when pneumatic pressures of said tires provided on said vehicles are normal; comparing using a computer processor for said velocity ratio of said right front wheel with said velocity ratio of said left front wheel at each of said velocity regions, or comparing said velocity ratio of said right rear wheel with said velocity ratio of said velocity ratio of said left rear wheel at each of said velocity regions; and detecting a heterogeneity between said tires provided on said right front wheel and said left front wheel, or a heterogeneity between said tires provided on said right rear wheel and said left rear wheel.