Tire inflation system for use with an agricultural implement
First Claim
Patent Images
1. A tire inflation system for an agricultural implement or implements supported by inflatable tires and attached to a vehicle for movement, the system comprising:
- at least a first sensor supported by the agricultural implement to sense at least a first implement load characteristic and to generate at least a first load signal;
a processor receiving the first load signal and generating tire inflation control signals as a function of at least the first load signal;
a tire inflation controller receiving the inflation control signal and regulating the implement tire pressure as a function of the inflation control signals wherein the control signals tend to decrease the tire pressure as the magnitude of the load signal increases; and
a soil characteristic determiner that generates soil characteristic signals as the implement is moved through a field, the soil characteristic signals indicating at least one soil condition proximate the implement, the processor generating tire inflation control signals as a function of at least the first load signal and the soil characteristic signals;
wherein the soil characteristic determiner includes at least one of a soil moisture sensor, a soil bulk density sensor, a compaction layer sensor, a soil conductivity sensor, a soil profile sensor and an inclinometer.
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Abstract
A central tire inflation system for an agricultural implement that is linked to a work vehicle for movement in a field. The central tire inflation system includes a database of soil conditions corresponding to location, an implement load sensor, a location determiner, a processor, and tire inflation controller. The processor determines the proper inflation of implement tires based on factors including the soil conditions and implement load.
95 Citations
20 Claims
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1. A tire inflation system for an agricultural implement or implements supported by inflatable tires and attached to a vehicle for movement, the system comprising:
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at least a first sensor supported by the agricultural implement to sense at least a first implement load characteristic and to generate at least a first load signal; a processor receiving the first load signal and generating tire inflation control signals as a function of at least the first load signal; a tire inflation controller receiving the inflation control signal and regulating the implement tire pressure as a function of the inflation control signals wherein the control signals tend to decrease the tire pressure as the magnitude of the load signal increases; and a soil characteristic determiner that generates soil characteristic signals as the implement is moved through a field, the soil characteristic signals indicating at least one soil condition proximate the implement, the processor generating tire inflation control signals as a function of at least the first load signal and the soil characteristic signals; wherein the soil characteristic determiner includes at least one of a soil moisture sensor, a soil bulk density sensor, a compaction layer sensor, a soil conductivity sensor, a soil profile sensor and an inclinometer.
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2. A tire inflation system for an agricultural implement or implements supported by inflatable tires and attached to a vehicle for movement, the system comprising:
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at least a first sensor supported by the agricultural implement to sense at least a first implement load characteristic and to generate at least a first load signal; a processor receiving the first load signal and generating tire inflation control signals as a function of at least the first load signal; a tire inflation controller receiving the inflation control signal and regulating the implement tire pressure as a function of the inflation control signals wherein the control signals tend to decrease the tire pressure as the magnitude of the load signal increases; and a soil characteristic determiner that generates soil characteristic signals as the implement is moved through a field, the soil characteristic signals indicating at least one soil condition proximate the implement, the processor generating tire inflation control signals as a function of at least the first load signal and the soil characteristic signals; wherein the soil characteristic determiner includes a database and a location determiner, the database storing condition characteristics corresponding to a field in which the implement is to be used, the characteristics correlating at least the one condition with field locations, the location determiner for determining the location of the implement within the field during operation, the processor using the implement location and the database to identify the soil characteristics proximate the implement. - View Dependent Claims (3, 4, 5, 6, 7, 8, 9, 10)
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11. A central tire inflation system for an agricultural implement that is linked to a work vehicle for movement through a field where the implement is supported by inflatable tires, the system for regulating implement tire pressure, the system comprising:
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a predefined and pre-stored database storing soil condition characteristics corresponding to locations within a field in which the implement is to be used wherein the database indicates at least first and second different soil conditions corresponding to first and second different locations within the field; at least a first load sensor mounted to the implement for sensing at least a first load characteristic associated with the implement and generating a first load characteristic signal; a location determiner for determining the location of the implement in the field as the implement is moved through the field and for generating location signals; a processor receiving the location signals and identifying soil conditions proximate the implement by accessing the database, the processor also receiving the first load characteristic signal and generating inflation control signals as a function of the soil conditions proximate the implement and the first load condition signal; and a tire inflation controller receiving the inflation control signals and regulating the implement tire pressure as a function of the inflation control signals. - View Dependent Claims (12, 13, 14, 15)
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16. A method for regulating pressure in tires of an implement that is attached to a vehicle for movement, the method comprising the steps of:
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sensing at least a first implement load characteristic; providing a predefined and pre-stored database storing soil condition characteristics corresponding to locations within a field in which the implement is to be used wherein the database indicates at least first and second different soil conditions corresponding to first and second different locations within the field; receiving global positioning data and using the data to identify the location of the implement within a field; using the location information and the database to determine soil condition proximate the implement; and generating tire inflation control signals as a function of both the soil condition proximate the implement and the at least a first load characteristic, wherein the control signals tend to decrease the tire pressure as the magnitude of the load characteristic increases. - View Dependent Claims (17)
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18. A method for use with an agricultural implement that is linked to a work vehicle for movement through a field where the implement is supported by inflatable tires, the method for regulating implement tire pressure, the method comprising the steps of:
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providing a predefined and pre-stored database storing soil condition characteristics corresponding to locations within a field in which the implement is to be used wherein the database indicates at least first and second different soil conditions corresponding to first and second different locations within the field; sensing at least a first load characteristic associated with the implement and generating a first load characteristic signal; determining the location of the implement in the field as the implement is moved through the field; identifying soil conditions proximate the implement by accessing the database and identifying the conditions associated with the determined location; generating inflation control signals as a function of the soil conditions proximate the implement and the first load condition signal; and regulating the implement tire pressure as a function of the inflation control signals. - View Dependent Claims (19, 20)
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Specification