Data processing: vehicles – navigation – and relative location – Vehicle control – guidance – operation – or indication – Vehicle diagnosis or maintenance indication
Reexamination Certificate
2005-07-12
2005-07-12
Camby, Richard M. (Department: 3661)
Data processing: vehicles, navigation, and relative location
Vehicle control, guidance, operation, or indication
Vehicle diagnosis or maintenance indication
C701S036000, C340S442000, C340S443000, C340S444000
Reexamination Certificate
active
06917864
ABSTRACT:
A method for detecting decrease in tire air-pressure in which decrease in internal pressure of a tire is detected on the basis of rotational information obtained from tires attached to a vehicle. The method includes the steps of: detecting rotational information of the respective tires; storing the rotational information of the respective tires; obtaining a slip rate between the tires and a road surface during running; comparing the slip rate with a slip rate which has been preliminarily obtained when at normal internal pressure; and judging simultaneous decompression of two wheel tires of both front wheels or simultaneous decompression of two wheel tires of both rear wheels on the basis of a relationship between a value obtained through comparison of the two slip rates and a specified threshold. It is possible to judge simultaneous decompression of two wheel tires of both front wheels or wheel two tires of both rear wheels.
REFERENCES:
patent: 5561415 (1996-10-01), Dieckmann
patent: 5747686 (1998-05-01), Nishihara et al.
patent: 5826210 (1998-10-01), Izumi et al.
patent: 5866812 (1999-02-01), Nishihara et al.
patent: 5907097 (1999-05-01), Nakajima et al.
patent: 5936519 (1999-08-01), Nakajima et al.
patent: 6529851 (2003-03-01), Oshiro
patent: 6622074 (2003-09-01), Coelingh et al.
patent: 0 768 193 (1997-04-01), None
patent: 63-305011 (1988-12-01), None
patent: 7-47820 (1995-02-01), None
patent: 7-52621 (1995-02-01), None
patent: 10-206460 (1998-08-01), None
Kitano Masashi
Oshiro Yuji
Camby Richard M.
Sumitomo Rubber Industries Ltd.
LandOfFree
Method and apparatus for detecting decrease in tire... does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Method and apparatus for detecting decrease in tire..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method and apparatus for detecting decrease in tire... will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-3393232