Title:
車両のホイールに取り付けられた圧力センサにより送信される情報をフィルタリングする方法及び装置
Document Type and Number:
Japanese Patent JP5079996
Kind Code:
B2
Abstract:
The invention relates to a method for filtering information emitted, on the basis of pressure measurements taken by a pressure sensor mounted on a wheel of a vehicle equipped with a tire, to a central unit mounted on the vehicle. According to this method, a value representative of the pressure of the air in the tire is measured periodically, with a period theta, and from this any possible variations DeltaP in pressure between the values of the pressures successively measured are deduced; in parallel, with the same period theta, a value representative of the temperature of the air in the tire is measured. In addition, when there is a variation DeltaP in pressure between two measured pressure values, that is greater in terms of absolute value than a predetermined threshold Sp, the variation DeltaT between the two temperature values measured at the same instants as the measured pressures is calculated. The emission of a signal representative of a variation in pressure to the central unit is commanded only if the comparative change in the pressure and in the measured temperature might be representative of a variation of the amount of air in the tire.
Inventors:
Laurent Fabre
Georges Fonds
Georges Fonds
Application Number:
JP2005253805A
Publication Date:
November 21, 2012
Filing Date:
September 01, 2005
Export Citation:
Assignee:
Continental Automotive France
International Classes:
G01L17/00; B60C23/04; B60C23/20
Domestic Patent References:
| JP2005212669A | ||||
| JP2003072330A | ||||
| JP2002225519A | ||||
| JP2003121281A | ||||
| JP11334328A | ||||
| JP2005008109A |
Attorney, Agent or Firm:
Takuya Kuno