Apparatus and method for power management in a tire pressure...

Details Apparatus and method for power management in a tire pressure... Apparatus and method for power management in a tire pressure...

2007-07-10

2007-07-10

La, Anh V. (Department: 2612)

Communications: electrical

Land vehicle alarms or indicators

Internal alarm or indicator responsive to a condition of the...

C340S442000, C073S146500, C116S03400R

Reexamination Certificate

active

10533271

ABSTRACT:
A system (10) and method manages battery (13) power in a wheel module (11) for indicating when air pressure in a tire falls below a recommended value. Tire air pressure is sensed with a pressure sensor (16). Tire air temperature is sensed with a temperature sensor (18). A determination is made whether the air pressure is increasing or decreasing with respect to time. Based upon whether a ratio of the air pressure and the air temperature is increasing, decreasing or remaining constant with respect to time, tire motion is inferred without directly sensing acceleration or movement of the tire. Power management circuitry (14) controls battery power to enable sensing of air pressure and air temperature at measurement intervals that are longer in time when the tire is not in motion.

REFERENCES:
patent: 5297424 (1994-03-01), Sackett
patent: 5886624 (1999-03-01), Hebert
patent: 6278363 (2001-08-01), Bezek
patent: 6369712 (2002-04-01), Letkomiller et al.
patent: 6507276 (2003-01-01), Young
patent: 6535116 (2003-03-01), Zhou
patent: 6809637 (2004-10-01), Brown

Affiliated with

Also associated with

Rating

Apparatus and method for power management in a tire pressure... does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Apparatus and method for power management in a tire pressure..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Apparatus and method for power management in a tire pressure... will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-3788618