Abstract: A mining machine comprising a power monitor sensing power consumption of the mining machine during a select time period to generate power consumption data; a sensor sensing payload of the mining machine during the select time period to generate payload data; and a monitoring module. The monitoring module including computer readable media for comparing the power consumption data and the payload data to generate shovel efficiency data, and outputting the shovel efficiency data.

Abstract: A method of controlling a digging operation of an industrial machine. The industrial machine includes a dipper, a hoist rope attached to the dipper, a hoist motor moving the hoist rope and the dipper, and a computer having a controller. The method includes monitoring a speed of the hoist motor, determining an acceleration rate of the hoist motor, comparing the acceleration rate of the hoist motor to a threshold reverse factor, determining an impact situation when the acceleration rate is less than the threshold reverse factor, and sending a reverse torque control command signal to the hoist motor.