F - Mech Eng,Light,Heat,Weapons – 15 – B
Patent
F - Mech Eng,Light,Heat,Weapons
15
B
138/69.13
F15B 13/12 (2006.01) B62D 6/02 (2006.01) F15B 13/16 (2006.01)
Patent
CA 1044992
VARIABLE FEEDBACK STEERING SYSTEM Abstract of the Disclosure A hydraulic control circuit for the steering system of an articulated vehicle is provided having a first pump means for delivering fluid under pressure and directional control valve means in fluid communication with the first pump means for controlling the direction of flow of the pressurized fluid. A second pump means, responsive to a steering input signal, de- velops an output indicative of a desired change in vehicle direc- tion. An actuator means is connected to the directional control valve means for controlling the position of the directional con- trol valve means, and said actuator means is in fluid communica- tion with the second pump means so as to receive the output therefrom. A feedback means is placed in fluid communication with the actuator means for developing a feedback signal to counteract the effect of the second pump output, and a means is placed in fluid communication with the feedback means for varying the feed- back signal to thereby vary the rate of counteracting the second pump output.
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