Patent ID: 11905902
Assignee: BRP-ROTAX GMBH & CO. KG
Field: Engines, pumps, turbines (Mechanical engineering)
Classification: CPC F | IPC F

Claim 7:
8. The method of claim 1, wherein:
the at least one engine speed variation is at least one first speed variation; and
identifying the working cycle phase further comprises, in response to an absolute value of the at least one first speed variation being below the threshold:
determining, after the crankshaft has rotated 360 degrees, at least one second speed variation as the crankshaft rotates through the at least one measurement window, the at least one measurement window being less than 180 degrees, and
in response to the at least one second speed variation being above the threshold, determining that the crankshaft is in the ignition revolution of the two revolution working cycle.