Method and apparatus for controlling ground speed of a work machine based on tire condition
First Claim
1. A method of controlling the speed of a work machine, as the machine moves across the ground, based on vehicle speed and payload on at least one of a plurality of tires on the work machine, including the steps of:
- monitoring a first value that is function of vehicle speed and payload of at least one of said plurality of tires;
comparing said first value to a predetermined second value;
determining to cause said work machine to reduce speed based on an event of said first value exceeding said second value;
providing an operator an ability to override said determination; and
automatically causing said work machine to reduce speed, in response to said determination not being overridden.
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Accused Products
Abstract
The present invention provides a method and apparatus to automatically control the speed of a work machine 10 based on ton-miles-per-hour limit of at least one of a plurality of tires 12. A vehicle information system 28 having a processor 32 and a database 34 monitors an actual ton-miles-per-hour calculation of the plurality of tires 12. The vehicle information system 28 functions in combination with an electronic control module 66 of the machine 10 to trigger an automatic speed reduction should the actual ton-miles-per-hour rating exceed a predetermined limit. The speed reduction may be affected by at least one of reducing a throttle setting, changing a transmission gear and automatic application of the machine brakes.
24 Citations
32 Claims
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1. A method of controlling the speed of a work machine, as the machine moves across the ground, based on vehicle speed and payload on at least one of a plurality of tires on the work machine, including the steps of:
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monitoring a first value that is function of vehicle speed and payload of at least one of said plurality of tires;
comparing said first value to a predetermined second value;
determining to cause said work machine to reduce speed based on an event of said first value exceeding said second value;
providing an operator an ability to override said determination; and
automatically causing said work machine to reduce speed, in response to said determination not being overridden. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 29, 30, 31, 32)
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13. An apparatus for controlling the speed of a work machine, as the work machine moves across the ground, said control being based on monitoring work machine speed and payload on at least one of a plurality of tires on the work machine, said apparatus comprising:
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a payload monitor adapted to generate a signal related to a payload of said machine on said plurality of tires;
a ground speed monitor adapted to generate a signal related to the speed of said work machine across the ground; and
a vehicle information system having a processor and a database being adapted to transmit and receive a plurality of signals, wherein said vehicle information system monitors said work machine speed and said payload of at least one of said plurality of tires and compares first value that is a function of speed and payload on one of said plurality of tires and a predetermined a second value, determines to cause said work machine to reduce speed based on an event of said first value exceeding said second value, provides an operator an ability to override said determination, and automatically causing said machine ground speed to be reduced in in response to said determination not being overridden. - View Dependent Claims (14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25)
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26. A method of controlling the speed of a work machine, as the machine moves across the ground, based on vehicle speed and payload on at least one of a plurality of tires on the work machine, including the steps of:
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monitoring a first value that is function of vehicle speed and payload of at least one of said plurality of tires;
comparing said first value to a predetermined second value;
determining to cause said work machine to reduce speed in response to said comparison;
notifying an operator in response to said first value exceeding said second value;
establishing a delay time period in response to said notification during which an operator may override said determination; and
automatically causing said work machine to reduce speed in response to said delay time period expiring and said determination not being overridden. - View Dependent Claims (27, 28)
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Specification