Patent ID: 8352131

Claim:
A drainage plow control for controlling elevation of a drainage plow having a frame that is adapted to connect to a prime mover, a shank that is connected to the frame, and a hydraulic actuator that is adapted to adjust pitch of said shank relative to earth, said shank defining a cutting edge, wherein the pitch of said shank relative to earth causes a change in the elevation of said cutting edge, said drainage plow control comprising: an electronic control and a hydraulic valve assembly, said hydraulic valve assembly adapted to be connected with the hydraulic actuator to adjust pitch of the shank, said electronic control being adapted to activate said hydraulic valve assembly; wherein said electronic control comprises a processor and at least one sensor, said at least one sensor adapted to be positioned on the drainage plow and comprising a GNS receiver that is adapted to measure current elevation relative to earth and to provide a GNS location input to said processor, said at least one sensor further comprising an inclinometer that is adapted to measure current pitch relative to earth and to provide a current pitch input to said processor, wherein said processor activates said hydraulic valve assembly from said inputs in a manner that adjusts the hydraulic actuator to affect the pitch of the shank relative to earth, wherein said electronic control combines the GNS location input, the current pitch input and a desired elevation of said cutting edge relative to earth to provide a valve control output and wherein said electronic control activates said hydraulic valve assembly as a function of the valve control output.