Patent ID: 9031736
Filing Date: 2015-05-12
Classification: G01P,G07C,H02M,H04L

Abstract:
1. A system for performing at least one diagnostic check on a first data message transmitted from a sensor unit to a receiver unit associated with an engine control unit (ECU), wherein the sensor unit operates based on a sensor unit clock signal, comprising: a nibble counter for receiving the first data message and determining a nibble length of at least one nibble of the first data message based on a compensated receiver clock signal, wherein the compensated receiver clock signal is substantially identical to the sensor unit clock signal; an accumulator, connected to the nibble counter, for receiving the nibble length from the nibble counter and adding one or more nibble lengths to obtain a length of the first data message; and a pause pulse diagnostic circuit, connected to the accumulator, for performing the at least one diagnostic check on the first data message after a pause pulse is detected in the first data message and generating a diagnostic check signal that indicates at least one of pass and fail status of the first data message, wherein the pause pulse diagnostic circuit comprises: