Propulsion control apparatus and method for a paver
First Claim
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1. An apparatus for controlling the propulsion of a machine having a hydrostatic system that drives a plurality of ground engaging traction devices, comprising:
- means for producing a desired travel speed signal indicative of a desired speed of machine travel;
means for producing a steering angle signal indicative of a desired steering angle of the machine travel;
means for receiving the desired travel speed and steering angle signals, determining a desired rotational speed of the ground engaging traction devices to steer the machine at the desired steering angle, and producing command signals indicative of the desired rotational speeds; and
means for receiving the command signals and responsively controlling the speed of the ground engaging traction devices to the desired speed to cause the machine to steer at a desired turning radius that is independent to the actual speed of travel.
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Abstract
An apparatus is disclosed for controlling the propulsion and steering of a machine. The machine includes a hydrostatic system that drives a pair of ground engaging traction devices. An electronic controller receives operator signals indicative of a desired travel speed and direction, and determines a desired rotational speed of the ground engaging traction devices. The electronic controller produces command signals indicative of the determined speeds to regulate the speed of the ground engaging traction devices to the desired speed.
52 Citations
18 Claims
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1. An apparatus for controlling the propulsion of a machine having a hydrostatic system that drives a plurality of ground engaging traction devices, comprising:
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means for producing a desired travel speed signal indicative of a desired speed of machine travel; means for producing a steering angle signal indicative of a desired steering angle of the machine travel; means for receiving the desired travel speed and steering angle signals, determining a desired rotational speed of the ground engaging traction devices to steer the machine at the desired steering angle, and producing command signals indicative of the desired rotational speeds; and means for receiving the command signals and responsively controlling the speed of the ground engaging traction devices to the desired speed to cause the machine to steer at a desired turning radius that is independent to the actual speed of travel. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
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9. A method for controlling the propulsion of a machine having a plurality of ground engaging traction devices, comprising the steps of:
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producing a desired travel speed signal indicative of a desired speed of machine travel; producing a steering angle signal indicative of a desired steering angle of the machine travel; receiving the desired travel speed and steering angle signals, determining a desired rotational speed of the ground engaging traction devices to steer the machine at the desired steering angle, and producing command signals indicative of the rotation speeds; and receiving the command signals and responsively controlling the speed of the ground engaging devices to the desired speed to cause the machine to steer at a desired turning radius that is independent to the actual speed of travel. - View Dependent Claims (10, 11, 12, 13, 14, 15, 16, 17, 18)
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Specification