Sharpness monitor for indicating turf mower reel blade condition

摘要

A system for notifying the operator of a reel-type greens mower, or any blade-based cutting system, of the relative sharpness of the blades. A controller receives at least one input from the mowing unit such as current draw of the mowing unit, driving energy input to the mowing unit, or rotational speed of the reel, for example, and monitors that input in comparison with the forward cutting speed of the mower to make a determination as to the relative sharpness of the blades. A display may be provided to alert the operator of the condition of the blades, including when maintenance of the blades in necessary. A speed control circuit may also be provided to maintain the speed of the greens mower below the maximum effective cutting speed of the mower.