Invention Grant
- Patent Title: Wheel assembly with internal pressure reservoir and pressure fluctuation warning system
- Patent Title (中): 车轮总成与内部压力容器和压力波动警告系统
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Application No.: US11662287Application Date: 2005-07-19
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Publication No.: US07444859B2Publication Date: 2008-11-04
- Inventor: Massimo Filippi , Renato Caretta
- Applicant: Massimo Filippi , Renato Caretta
- Applicant Address: IT Milan
- Assignee: Pirelli Tyre S.p.A.
- Current Assignee: Pirelli Tyre S.p.A.
- Current Assignee Address: IT Milan
- Agency: Finnegan, Henderson, Farabow, Garrett & Dunner, L.L.P.
- Priority: WOPCT/IB2004/002928 20040909
- International Application: PCT/EP2005/007841 WO 20050719
- International Announcement: WO2006/027044 WO 20060316
- Main IPC: G01M17/02
- IPC: G01M17/02

Abstract:
Method of allowing control of a vehicle provided with at least two wheels in case of puncture of a tire, each wheel having a rim and a tire associated therewith, including the steps of inflating each tire to an operating pressure at a reference temperature; admitting a fluid compressed to a first pressure higher than the operating pressure of the tire at the reference temperature into at least one tank associated with at least one of the rims; bringing the tire into communication with the tank when the inner pressure of the tire is lower than the operating pressure by a predetermined first threshold value; measuring the inner pressure of the tire with a predetermined frequency; calculating a variation of the inner pressure in the time unit; generating an alarm signal when the variation of the inner pressure corresponds to a reduction and is higher than a predetermined value; and transmitting the alarm signal to the driver.
Public/Granted literature
- US20080093814A1 Wheel Assembly with Internal Pressure Reservoir and Pressure Fluctuation Warning System Public/Granted day:2008-04-24
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