Lawnmowers with safety features and methods associated therewith

A lawnmower comprising:

• a body;
• a cutting element coupled with the body;
• a motor configured to drive the cutting element;
• one or more sensors configured to detect an angular displacement of the lawnmower with respect to a vertical axis and a wobble of the cutting element;
• and
• a processor configured to:
• compare the detected angular displacement against a tilt threshold value;
• compare the detected wobble against a wobble threshold value;
• and
• control an operational speed of the cutting element when the angular displacement exceeds the tilt threshold value or when the wobble exceeds the wobble threshold value.

A lawnmower comprising:

• one or more sensors configured to detect an angular displacement of the lawnmower with respect to a vertical axis and a wobble of at least a portion of the lawnmower;
• and
• a processor configured to:
• compare the detected angular displacement against a tilt threshold value;
• compare the detected wobble against a wobble threshold value;
• and
• adjust an operational aspect of the lawnmower when the angular displacement exceeds the tilt threshold value or when the wobble exceeds the wobble threshold value.

A method of operating a lawnmower, the method comprising:

• moving the lawnmower across a surface with a cutting element of the lawnmower rotating;
• with one or more micro-electro-mechanical (MEM) sensors, detecting an angular displacement of the lawnmower with respect to a vertical axis and a wobble of the cutting element;
• processing the detected angular displacement and wobble by:
• comparing the detected angular displacement against a tilt threshold value;
• comparing the detected wobble against a wobble threshold value;
• and
• controlling an operational speed of the cutting element when the angular displacement exceeds the tilt threshold value or when the wobble exceeds the wobble threshold value.