Method and system for controlling steering deadband in a mobile machine
First Claim
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1. A method for compensating for a dead band in a steering mechanism of a mobile machine, comprising:
- determining a first dead band value for actuating said steering mechanism in a first direction wherein a succession of actuations of said steering mechanism are initiated in said first direction and in which the magnitude of each successive actuation is decreased until a first absence of movement of the ground wheels of said mobile machine is detected in response to an actuation of said steering mechanism in said first direction;
determining a second dead band value for actuating said steering mechanism in a second direction wherein a succession of actuations of said steering mechanism are initiated in said second direction and in which the magnitude of each successive actuation is decreased until a second absence of movement of the ground wheels of said mobile machine is detected in response to an actuation of said steering mechanism in said second direction; and
storing said first dead band value and said second dead band value as discrete values.
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Abstract
Embodiments of the present invention recite a method and system for controlling steering dead band in a mobile machine. In one embodiment, a first dead band value for actuating a steering mechanism in a first direction is determined. Then, a second dead band value for actuating the steering mechanism in a second direction is determined. The first dead band value and the second dead band value are then stored as discrete values.
14 Citations
36 Claims
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1. A method for compensating for a dead band in a steering mechanism of a mobile machine, comprising:
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determining a first dead band value for actuating said steering mechanism in a first direction wherein a succession of actuations of said steering mechanism are initiated in said first direction and in which the magnitude of each successive actuation is decreased until a first absence of movement of the ground wheels of said mobile machine is detected in response to an actuation of said steering mechanism in said first direction; determining a second dead band value for actuating said steering mechanism in a second direction wherein a succession of actuations of said steering mechanism are initiated in said second direction and in which the magnitude of each successive actuation is decreased until a second absence of movement of the ground wheels of said mobile machine is detected in response to an actuation of said steering mechanism in said second direction; and storing said first dead band value and said second dead band value as discrete values. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14)
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15. A system for controlling a mobile machine comprising:
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an actuator for operating a steering mechanism of said mobile machine; a controller coupled with said actuator for automatically actuating said steering mechanism in a first direction according to a first dead band value and for automatically actuating said steering mechanism in a second direction according to a second dead band value and wherein determining said first dead band value and said second dead band value comprises; initiating a succession of actuations of said steering mechanism in said first direction wherein the magnitude of each successive actuation is decreased until a first absence of movement of the ground wheels of said mobile machine is detected in response to an actuation of said steering mechanism in said first direction; and initiating a succession of actuations of said steering mechanism in said second direction wherein the magnitude of each successive actuation is decreased until a second absence of movement of the around wheels of said mobile machine is detected in response to an actuation of said steering mechanism in said second direction; and a determiner coupled with said steering mechanism for determining said first dead band value and said second dead band value; and a storage medium coupled with said determiner and with said controller for storing said first dead band value and said second dead band value as discrete values. - View Dependent Claims (16, 17, 18, 19, 20, 21, 22, 23, 24, 25)
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26. A dead band steering control system comprising:
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a determiner for determining a first dead band value for actuating a steering mechanism of a mobile machine wherein a succession of actuations of said steering mechanism are initiated in a first direction and in which the magnitude of each successive actuation is decreased until a first absence of movement of the around wheels of said mobile machine is detected in response to an actuation of said steering mechanism in said first direction and for determining a second dead band value for actuating said steering mechanism wherein a succession of actuations of said steering mechanism are initiated in a second direction and in which the magnitude of each successive actuation is decreased until a second absence of movement of the ground wheels of said mobile machine is detected in response to an actuation of said steering mechanism in said second direction; and a storage medium for storing said first dead band value and said second dead band value as discrete values. - View Dependent Claims (27, 28, 29, 30, 31, 32, 33, 34, 35, 36)
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Specification