Excavator implement teeth grading offset determination

An excavator comprising

• a machine chassis,
• an excavating linkage assembly,
• an excavating implement, and
• control architecture, wherein:
• the excavating linkage assembly comprises an excavator boom and an excavator stick;
• the excavating linkage assembly is configured to swing with, or relative to, the machine chassis;
• the excavator stick is mechanically coupled to the excavator boom and is configured to curl relative to the excavator boom;
• the excavating implement is mechanically coupled to a terminal point of the excavator stick and is configured to curl relative to the excavator stick;
• the excavator boom, the excavator stick, and the excavating implement collectively define a variable implement angle θBucket(t) that is indicative of a current position of the excavating implement relative to horizontal as a function of time t;
• the excavating implement comprises a plurality of implement teeth extending a tooth height h from an internal leading edge JI of the excavating implement to an external leading edge JE of the excavating implement;
• the plurality of implement teeth are spaced along the internal leading edge JI and define an active raking ratio r;
• the control architecture comprises one or more linkage assembly actuators and one or more architecture controllers programmed to execute an implement teeth grading offset determination process, the implement teeth grading offset determination process comprising
• determining a variable implement offset angle θDelta(t) at least partially based on a difference between an original target design angle θTgt(t) and the variable implement angle θBucket(t), the original target design angle θTgt(t) indicative of a target implement slope relative to horizontal as a function of time t,
• determining an implement offset IO based on the tooth height h, the active raking ratio r, and the variable implement offset angle θDelta(t), and
• determining a new target design elevation ElvTgt,New(t) based on the implement offset IO and an original target design elevation ElvTgt,Orig(t);
• and
• the one or more architecture controllers are further programmed to operate the excavator to grade a terrain using the plurality of implement teeth at least partially based on the new target design elevation ElvTgt,New(t).