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(12) PATENT APPLICATION PUBLICATION (21) Application No.6577/DELNP/2008 A<br />

(19) INDIA<br />

(22) Date <strong>of</strong> filing <strong>of</strong> Application :29/07/2008 (43) Publication Date : 24/10/2008<br />

(54) Title <strong>of</strong> the invention : "METHOD FOR TRANSMITTING INFORMATION CONCERNING THE OPERATION OF AN<br />

INTERNAL COMBUSTION ENGINE<br />

(51) International classification :F02D 41/34 (71)Name <strong>of</strong> Applicant :<br />

(31) Priority Document No :0602409<br />

1)CONTINENTAL AUTOMOTIVE FRANCE<br />

(32) Priority Date :20/03/2006 Address <strong>of</strong> Applicant :1, AVENUE PAUL OURLIAC-31036<br />

(33) Name <strong>of</strong> priority country :France<br />

TOULOUSE CEDEX 1 FRANCE. France<br />

(86) International Application No<br />

:PCT/EP2007/1810 (72)Name <strong>of</strong> Inventor :<br />

Filing Date<br />

:02/03/2007 1)AVIAN, PHILLIPPE<br />

(87) International Publication No :WO 2007/107228 2)BLANC,JEREMY<br />

(61) Patent <strong>of</strong> Addition to Application Number :NA<br />

3)GALTIER,FREDERIC<br />

Filing Date<br />

:NA<br />

4)TELINGS,WILLEM<br />

(62) Divisional to Application Number :NA<br />

Filing Date<br />

:NA<br />

(57) Abstract :<br />

A method <strong>of</strong> transmitting information making it possible to monitor the operation <strong>of</strong> an internal combustion engine, comprising the<br />

steps consisting <strong>of</strong>: - measurement <strong>of</strong> the angular position <strong>of</strong> a crankshaft by means <strong>of</strong> an absolute position sensor provided with a<br />

digital output, <strong>and</strong> - transmission at a frequency fl to an engine control unit <strong>of</strong> the measured angular position information, encoded in a<br />

data string containing Nl bits, the method being characterized in that it furthermore comprises a step consisting <strong>of</strong>: - transmission at a<br />

frequency f2 <strong>of</strong> the measured angular position information, encoded in a data string containing N2 bits, the number N2 <strong>of</strong> bits being<br />

greater than the number Nl, the frequency f2 being less than or equal to the frequency f1. The encoding in Nl bits allows transmission<br />

<strong>of</strong> angular position information at low resolution, whereas the encoding in N2 bits allows the transmission <strong>of</strong> high resolution<br />

information, able to detect misfirings.<br />

No. <strong>of</strong> Pages : 21 No. <strong>of</strong> Claims : 11<br />

The Patent Office Journal 24/10/2008 26061

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