E - Fixed Constructions – 02 – F
Patent
E - Fixed Constructions
02
F
E02F 3/84 (2006.01) E02F 9/20 (2006.01) G05G 9/047 (2006.01)
Patent
CA 2288572
A dual steering system for controlling the steering of a motor grader is disclosed. The dual steering system comprises a joystick moveable along a plurality of axes. Movement of the joystick a first direction along a first axis transmits a first electrical input signal to an electronic control computer which in turn transmits a first control signal to electro-hydraulic actuators associated with the right steering cylinder and left steering cylinder of the motor grader. The right steering cylinder and left steering cylinder cause rotation of the front tires in a first direction in response to the first control signal. Movement of the joystick a second direction along the first axis transmits a second electrical input signal to an electronic control computer which in turn transmits a second control signal to electro-hydraulic actuators associated with the right steering cylinder and left steering cylinder of the motor grader. The right steering cylinder and left steering cylinder cause rotation of the front tires in a second direction in response to the second control signal. The motor grader can also be steered by rotation of a steering wheel also acting through the right steering cylinder and the left steering cylinder.
Boast Susan M.
Hartman Matthew A.
Kelley Craig B.
Shane Mark D.
Shearer Daniel E.
Caterpillar Inc.
Smart & Biggar
LandOfFree
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