Measuring and testing – Internal combustion engine or related engine system or... – Relative rotational position
Reexamination Certificate
2011-04-26
2011-04-26
Kirkland, III, Freddie (Department: 2855)
Measuring and testing
Internal combustion engine or related engine system or...
Relative rotational position
C073S114250
Reexamination Certificate
active
07930929
ABSTRACT:
A method of transmitting information making it possible to monitor the operation of an internal combustion engine, includes the steps of:measuring the angular position of a crankshaft via an absolute position sensor provided with a digital output, andtransmitting at a frequency f1to an engine control unit the measured angular position information, encoded in a data string containing N1 bits,transmitting at a frequency f2of the measured angular position information, encoded in a data string containing N2 bits, the number N2 of bits being greater than the number N1, the frequency f2being less than or equal to the frequency f1. The encoding in N1 bits allows transmission of angular position information at low resolution, whereas the encoding in N2 bits allows the transmission of high resolution information, able to detect misfirings.
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Avian Philippe
Blanc Jeremy
Galtier Frederic
Teulings Willem
Continental Automotive France
Kirkland, III Freddie
Young & Thompson
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