Control system for an implement with a rotary component

摘要

A control system is provided for an implement such as a mower having a rotary blade driven by a gear box which is driven by a PTO shaft of a vehicle which is coupled to the mower. The vehicle has a drivetrain which drives the PTO shaft. The control system includes an acceleration sensor for sensing vibrations of the blade and generating a blade vibration signal. A PTO speed sensor generates a PTO shaft speed signal. A control unit is connected to the sensors and to the drivetrain. The control unit generates, as a function of the speed signal, an expected acceleration value representing a blade loss condition and an expected acceleration value range. The control unit compares the vibration signal to the range, and the control unit stops the drivetrain from rotating the blade if the vibration signal is within the range.

主权项

1. A control system for an implement having a rotary blade driven by a drive unit, the blade control system comprising:
an acceleration sensor for sensing vibrations of the blade and generating a sensed acceleration signal A(f); and a speed sensor for generating a drive unit or driven unit speed signal S(pto); and a control unit connected to the sensors and to the drive unit, the control unit generating, as a function of the speed signal, an expected acceleration value A(exp) representing a blade loss condition, the control unit comparing the sensed acceleration signal A(f) to the expected acceleration value A(exp), and the control unit stopping the drive unit from rotating the blade if the sensed acceleration signal A(f) is similar to the expected acceleration value A(exp).