Patent Document ID: 8083004
Application ID: 11730083
Patent Flag: 1

Claim One:
1. A control system for a machine having a power source, a traction device, and a ripping tool, comprising: a slip sensor configured to generate at least one signal indicative of machine slippage; at least one actuator operable to move the ripping tool; and a controller in communication with the slip sensor, the at least one actuator, and the power source, the controller being configured to: receive at least one operator input indicative of an acceptable slip value; determine an actual machine slippage based on the at least one signal; directly and separately regulate a fueling of the power source and a movement of the ripping tool during an excavation process based on the acceptable slip value and the actual machine slippage, including lowering the ripping tool into a work surface until the actual machine slippage is within a desired value; reduce fueling to decrease a machine travel speed in response to the actual machine slippage exceeding the acceptable slip value; and raise the ripping tool away from the work surface in response to machine slippage only if progressive reduction of the fueling decreases the machine travel speed to a reference value without reducing the actual machine slippage below the acceptable slip value.