Tire inflation pressure monitoring apparatus
US8731771B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Apr 18, 2013 |
| Grant date | May 20, 2014 |
| Priority date | — |
| Expiry date | Apr 18, 2033 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01M17/02
- WIPO fieldTransport
- WIPO sectorMechanical engineering
Abstract
A tire inflation pressure obtaining unit obtains tire inflation pressure. An inflation pressure storing unit stores a tire inflation pressure after start of travel of a vehicle as an after-travel inflation pressure. A pressure reduction determining unit determines reduction in the tire inflation pressure based on the tire inflation pressure obtained. A reference pressure setting unit sets larger one of the after-travel inflation pressure and a predetermined lowest reference pressure as a reference pressure of tire inflation pressure determination when reduction in the tire inflation pressure is determined, and sets the lowest reference pressure as a reference pressure of tire inflation pressure determination when reduction in the tire inflation pressure is not determined. An alarm unit generates an alarm when the tire inflation pressure becomes below an alarm pressure threshold which is determined from the reference pressure.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.