Method and apparatus for controlling differentially driven wheel-slip for an articulated machine
First Claim
1. An anti-spin apparatus for a vehicle, the vehicle having a horizontal axis, front and rear wheeled sections hinged together by an articulation mechanism for relative movement about the horizontal axis, and at least one axle set with at least two driven wheels, comprising:
- braking means for controllably applying braking forces to each of said driven wheels;
means for producing a slip signal having a value responsive to the difference in rotational velocity between said wheels of said axle set;
means for producing an articulation signal having a value responsive to the angle of articulation of said vehicle;
control means for receiving said slip signal and said articulation signal and producing a braking control signal in response to the magnitudes of the slip and articulation signals; and
wherein said braking means receives said braking control signal and responsibly applies said braking forces to the faster rotating wheel.
1 Assignment
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Accused Products
Abstract
An anti-spin apparatus for a machine is disclosed. The machine is articulated and has at least one axle set with at least two driven wheels. The anti-spin apparatus includes braking mechanisms which controllably apply braking forces to each of the driven wheels. A controller produces a slip signal having a value responsive to the difference in rotational velocity between the wheels of the axle set. A transducer produces an articulation signal having a value responsive to the angle of articulation of the machine. Further, a microprocessor receives the slip signal and the articulation signal, and produces a braking control signal. One of the braking mechanisms receives the braking control signal and responsively applies the braking forces to the faster rotating wheel.
47 Citations
21 Claims
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1. An anti-spin apparatus for a vehicle, the vehicle having a horizontal axis, front and rear wheeled sections hinged together by an articulation mechanism for relative movement about the horizontal axis, and at least one axle set with at least two driven wheels, comprising:
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braking means for controllably applying braking forces to each of said driven wheels; means for producing a slip signal having a value responsive to the difference in rotational velocity between said wheels of said axle set; means for producing an articulation signal having a value responsive to the angle of articulation of said vehicle; control means for receiving said slip signal and said articulation signal and producing a braking control signal in response to the magnitudes of the slip and articulation signals; and wherein said braking means receives said braking control signal and responsibly applies said braking forces to the faster rotating wheel. - View Dependent Claims (2, 3, 4, 5, 6)
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7. An anti-spin apparatus for a vehicle, the vehicle having a horizontal axis, front and rear wheeled sections hinged together by an articulation mechanism for relative movement about the horizontal axis, and at least one axle set with at least two driven wheels, comprising:
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braking means for controllably applying braking forces to each of said driven wheels; means for producing a slip signal having a value responsive to the difference in rotational velocity between said wheels of said axle set; means for producing an articulation signal having a value responsive to the angle of articulation of said vehicle; control means for receiving said slip signal and said articulation signal, controllably modifying said slip signal in response to the value of said articulation signal, comparing said modified slip signal with a first predetermined reference value, and producing a braking control signal in response to said modified slip signal value exceeding said first predetermined reference value; and wherein said braking means receives said braking control signal and responsibly applies said braking forces to the faster rotating wheel. - View Dependent Claims (8, 9, 10, 11, 12, 13, 14, 15)
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16. A method for controllably equalizing the torque delivered to an axle set of a vehicle, the vehicle having front and rear wheeled sections being hinged together by an articulation mechanism for relative movement about a horizontal axis, the axle set having at least two driven wheels where each of the wheels have an associated braking mechanism, comprising the steps of:
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producing a slip signal having a value responsive to the difference in rotational velocity between said wheels of said axle set; producing an articulation signal having a value responsive to the angle of articulation of said vehicle; receiving said slip signal and said articulation signal and producing a braking control signal in response to the magnitudes of the slip and articulation signals; and receiving said braking control signal and responsibly operating said braking mechanism. - View Dependent Claims (17, 18, 19, 20, 21)
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Specification