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Development of Tire Pressure Monitoring System Using Wheel- Speed Sensor Signal
Published May 31, 1998 by National Highway Traffic Safety Administration in United States
It is difficult for today''s motorists to detect a loss of tire pressure since a gradual tire pressure loss occurring on four wheels at the same time (natural leak) accounts for a large proportion of the tire pressure loss incident.
To help overcome this difficulty, we have developed a tire pressure monitoring system using the wheel-speed sensor signal of the ABS system. The monitoring system is low in cost and is capable of detecting the simultaneous air pressure loss on four wheels.