• 专利附录
  • 专利说明
  • 权利要求
  • 类似技术
  • 同族专利
  • 引用文献
  • 法律状态
  • 优先权
    • 专利摘要:
    abstract “system to control air flow within an agricultural product measurement system” is a system to control air flow within an agricultural product measurement system. a system for delivering an agricultural product includes an air conveying system that has a blower configured to provide an air stream to move the measured product towards a dispensing device. the air transport system is mounted on the air cart. the system also includes a control circuit mounted on the agricultural vehicle, and configured to adjust a blower speed based at least partially on a product flow rate from the air cart.
    公开号:BR112014006612B1
    申请号:R112014006612-4
    申请日:2012-09-24
    公开日:2020-02-11
    发明作者:Trevor Lawrence Kowalchuk
    申请人:Cnh Industrial Canada, Ltd.；
    IPC主号:
    专利说明:

    “SYSTEM TO CONTROL AIR FLOW WITHIN AN AGRICULTURAL PRODUCT MEASUREMENT SYSTEM”
    Background of the Invention [001] The present invention relates in general to agricultural product measurement systems. Specifically, the present invention relates to a system for controlling air flow within an agricultural product measurement system.
    [002] Generally, sowing implements are towed behind a tractor or other vehicle. These sowing implements typically include one or more soil penetration tools or openers that form a sowing path for depositing seed in the soil. Openers are used to break through the soil to allow seed deposition. After placing the seeds, each opener is followed by an accumulator wheel that stores the soil on top of the deposited seeds.
    [003] In certain configurations, an air cart is used to measure and distribute agricultural product (for example, seeds, fertilizer, etc.) for soil penetration tools within the sowing implement. Certain air carts include a metering system and an air transport system to deliver measured quantities of product in an air flow that transfers the product to the openers. However, typical air transport systems have limited ability to regulate air flow based on a product flow rate from the measurement system. For example, on certain air transport systems. An operator manually adjusts the fan speed. In such configurations, the fan remains at a fixed speed unless adjusted by the operator. Unfortunately, the fixed speed of the fan provides insufficient air flow to the measurement system, thereby increasing the possibility of blockage formation within the product distribution hoses. Alternatively, fixed fan speed can provide excessive air flow to the
    Petition 870190008573, of 01/25/2019, p. 21/38
    2/16 measuring system, thereby increasing the possibility of the product being blown out of a seeding ditch.
    Summary of the Invention [004] In one embodiment, a system for delivering an agricultural product includes an air conveying system that has a blower configured to provide an air stream to move the measured product towards a dispensing device. The air transport system is mounted on an air cart. The system also includes a control circuit mounted on an agricultural vehicle, and configured to adjust a blower speed based at least partially on a product flow rate from the air cart.
    [005] In another embodiment, an agricultural vehicle system includes a hydraulic controller mounted on an agricultural vehicle. The hydraulic controller is configured to receive a signal indicative of a product flow rate from an air cart, and to determine a desired fan motor speed based at least partially on the signal. The system also includes a flow control device mounted on the agricultural vehicle. The flow control device comprises a hydraulic valve, a hydraulic pump or a combination thereof. The flow control device is communicatively coupled to the hydraulic controller, and configured to control a flow of hydraulic fluid in the air cart based on the desired fan motor speed.
    [006] In another embodiment, a system for distributing an agricultural product includes a hydraulic controller configured to receive a first signal indicative of a ground speed from an air cart, and a second signal indicative of a desired product flow rate. The hydraulic controller is configured to determine a desired fan motor speed based at least partially on the first signal and the second signal. The system also includes a fan motor mounted on the air cart, and configured to provide a current
    Petition 870190008573, of 01/25/2019, p. 22/38
    3/16 te of air to move a measured product towards a dispensing device. The system includes a flow control device connected communicatively to the hydraulic controller. The flow control device is configured to control a flow of hydraulic fluid to the fan motor based on the desired fan motor speed and the flow control device is mounted on an agricultural vehicle configured to tow the air cart.
    Brief Description of the Drawings [007] These and other aspects, characteristics and advantages of the present invention will be better understood when the following detailed description is read with reference to the attached drawings in which similar characters represent similar parts throughout the drawings, on what:
    [008] FIG. 1 is a side view of an air cart that has an air transport system for moving the measured product;
    [009] FIG. 2 is a schematic diagram of an exemplary air transport system that can be employed within the air cart of Figure 1;
    [010] Figure 3 is a schematic diagram of a modality of a system for distributing agricultural produce in a field; and [011] Figure 4 is a schematic diagram of another modality of a system for distributing agricultural produce in a field.
    Detailed Description of the Invention [012] Figure 1 is a side view of an air cart that has an air transport system for moving the measured product. In the illustrated embodiment, an implement 10 is coupled to an air cart 12, which is towed behind the implement 10 during operation and transportation. The implement 10 includes a tool frame 14, and a soil penetration tool 16 coupled to the tool frame 14. The soil penetration tool 16 is configured to excavate a trench in soil 18 to facilitate seed deposit and / or fertilizer. In modali
    Petition 870190008573, of 01/25/2019, p. 23/38
    4/16 illustrated, the soil penetration tool 16 receives product (for example, seed, fertilizer, etc.) from a product distribution communication tube 20 via a hose 22 that extends between the with unification 20 and the soil penetration tool 16. Although only one soil penetration tool 16, the product distribution communication tube 20, and hose 22 are employed within the illustrated modality, it should be appreciated that the implement 10 may include tools 16, communication pipes 20 and / or additional hoses in alternative modalities to facilitate product distribution across a wide row of soil 18. In addition, implement 10 includes wheel assemblies 24 that contact the soil surface 18 and enable implement 10 to be pulled by a towing vehicle.
    [013] Although the air cart 12 is towed behind the implement 10 in the described mode, it should be appreciated that the air cart 12 can be towed directly behind a towing vehicle in alternative modes. For example, the air cart can be attached to the towing vehicle by a hitch assembly, and the implement 10 can be towed behind the air cart 12. In additional embodiments, the implement 10 and the air cart 12 can be part of of a single unit that is towed in a towing vehicle, or elements of a self-propelled vehicle configured to distribute products across a field.
    [014] In the illustrated embodiment, the air cart 12 includes a storage tank 26, a frame 28, wheels 30, a measuring system 32, and an air source 34. The frame 28 includes a trailer hitch configured to couple to the towing vehicle implement 10, thereby enabling the air cart 12 to be towed across a field. In certain configurations, the storage tank 26 includes multiple compartments for storing various fluid particulate materials. For example, one compartment can include seeds, and another compartment can include dry / granular fertilizer. In such confi
    Petition 870190008573, of 01/25/2019, p. 24/38
    5/16 times, the air cart 12 can be configured to deliver both seed and fertilizer to implement 10 via separate delivery systems, or as a mixture through a single delivery system.
    [015] The seed and / or fertilizer inside the storage tank 26 are fed by gravity to the measuring system 32, thereby enabling the measuring system to distribute a desired quantity of product to the soil penetration tools 16 of the implement 10. In the present embodiment, the measuring system 32 includes sectioned measuring rollers to regulate the flow of the product from the storage tank 26 to an air flow provided by the air source 34. The air flow then transports the product through a hose 36 for implement 10, thereby providing seed and / or fertilizer for soil penetration tools 16 to deposit in the soil. Although only one hose 36 is included in the illustrated embodiment, additional hoses in alternative embodiments can be used to transfer product from the air cart 12 to various distribution communication tubes 20 of the implement 10.
    [016] A control circuit can be connected communicatively to the measuring system 32 and the air source 34 to regulate the product flow to the implement 10. The control circuit can include a position perception device, such as a receiver Global Positioning System (GPS), a ground speed sensor, and / or an airflow sensor. In such configurations, the control circuit can receive geographic position information from the GPS receiver, thus facilitating the determination of the position of the air cart 12. As such, the control circuit can implement “Smart Agriculture” through which the system measurement 32 is controlled based on the geographic position of measurement system 32, air cart 12, and / or implement 10. In addition, the control circuit can monitor a ground speed measured by the ground speed sensor
    Petition 870190008573, of 01/25/2019, p. 25/38
    6/16 to control the flow rate. As can be appreciated, the air flow rate can be based on the ground speed (e.g., implement ground speed 10) and a desired product flow rate. The control circuit adjusts the air flow rate based on the product flow rate to provide sufficient air flow to substantially reduce the possibility of blockage formation within the product distribution hoses. In addition, the rate of air flow can be limited to substantially reduce the possibility of the product being blown out of a seeding ditch. In addition, the airflow sensor can monitor the actual airflow rate from source 34. The control circuit can then adjust the actual airflow rate to substantially match the desired airflow rate.
    [017] Figure 2 is a schematic diagram of an exemplary air transport system that can be used inside the air cart 12 of Figure 1. As shown, the air source 34 is coupled to a conduit 38 that extends to the hose 36, and configured to flow air 40 beyond the measurement system 32. In other embodiments, the conduit 38 may include multiple conduit sections with the conduit section that couples the air source 34 to the top of the measurement system 32 and another section of conduit that couples the bottom of the measuring system 32 to the implement. In such a configuration, air 40 flows through the measuring system 32, from top to bottom. The air 40 enters the measuring system 32, combines with the measured product, and leaves the measuring system 32 as a mixture of product and air.
    [018] The air source 34 can be a pump or blower powered by an electric or hydraulic motor, for example. Specifically, in certain embodiments, the air source 34 can be a blower that has a hydraulically controlled fan. Fluid particulate material 42 (eg, seeds, fertilizer, etc.) inside the storage tank 26 flows by gravity into the system
    Petition 870190008573, of 01/25/2019, p. 26/38
    7/16 measurement 32. Measurement system 32 includes one or more measurement rollers 44 configured to regulate product flow 42 for air flow 40. In certain embodiments, measurement system 32 may include multiple measurement rollers 44 arranged adjacent to each other along a longitudinal geometric axis of the rollers 44. In other embodiments, the measuring rollers 44 can be positioned so that their geometric axis of rotation are parallel to each other. For example, certain measuring systems 32 include eight measuring rollers 44 arranged in a linear configuration. Such systems 32 are known as "8-run" measuring sets. However, alternative embodiments may include a greater or lesser number of measuring rolls, for example, 5, 6, 8, 9 or more.
    [019] Each measuring roller 44 includes an internal passage / cavity 46 configured to receive an axis that causes the measuring roller 44 to rotate. In the illustrated embodiment, the cavity 46 has a hexagonal cross section. However, alternative modalities may include several other cavity configurations (for example, triangular, square, keyed, fluted, etc.). The shaft is coupled to a drive unit, such as an electric or hydraulic motor, configured to rotate the measuring rollers 44. Alternatively, the measuring rollers 44 can be coupled to a wheel by a gear set in such a way as to drive the rotation of the measuring rollers. Such a configuration automatically varies the rotation rate of the measuring rollers based on the speed of the air cart.
    [020] Each measuring roll 44 also includes multiple grooves 48 and grooves 50. The number and geometry of the grooves 50 are particularly configured to accommodate the material 42 being distributed. The illustrated embodiment includes six grooves 50 and a corresponding number of grooves 48. Alternative modalities can include more or less grooves 50 and / or grooves 48. For example, measuring roller 44 can include 2, 4, 6 8, 10, 12 , 14, 16, 18, 20, or more grooves 50 and / or grooves 48. In addition, the depth of the grooves 50 and / or the height of the grooves 48 are confi
    Petition 870190008573, of 01/25/2019, p. 27/38
    8/16 ribs to accommodate material 42 within the storage tank 26. For example, a measuring roller 44 that has deeper grooves 50 and less grooves 48 can be used for larger seeds, while a measuring roller 44 that has grooves shallower 50 and more grooves 48 can be used for smaller seeds. Other parameters such as the spacing of the grooves (i.e., rotation relative to a longitudinal geometric axis) and the groove angle (i.e., rotation relative to a radial geometric axis) can also vary in alternative modalities.
    [021] For a particular metering roll configuration, the rotation rate of metering roll 44 controls the flow of material 42 into the air stream 40. Specifically, as the measuring roll 44 rotates, the material is transferred through an opening 52 in the measurement system 32 for conduit 38. The material then mixes with the air coming from the air source 34, thereby forming an air / material mixture 54. The mixture then flows into the flow units of implement 10 through pneumatic conduits, where seeds and / or fertilizer are deposited inside the soil. The rate at which the product flows through conduit 38 is controlled by the air source 34. Specifically, the air source 34 can increase the flow rate of the air stream 40, and thereby increase the air flow rate / mixture of air. material 54. In addition, the air source 34 can decrease the flow rate of the air stream 40, and thereby decrease the air flow rate / material mix 54. For example, in applications where the air cart 12 increases the speed, it may be desirable to increase the flow rate of the air / material mixture 54 that is distributed to the implement 10. As another example, in applications where the product flow rate decreases, it may be desirable to decrease the flow rate of air / material mixture 54 being distributed to implement 10.
    [022] As commented in more detail below, a hydraulic controller can receive a signal that indicates a desired product flow rate and a signal that indicates the ground speed of the air cart 12. The hydraulic controller
    Petition 870190008573, of 01/25/2019, p. 28/38
    9/16 can use these signals to determine a desired fan motor speed (for example, to control the flow rate of the air source 34). In addition, the hydraulic controller can instruct a flow control device (for example, a hydraulic valve or fan pump) to supply hydraulic fluid to the air source 34 to control its fan motor speed.
    [023] Figure 3 is a schematic diagram of an embodiment of a system 60 for distributing agricultural produce in a field. System 60 includes a towing vehicle, such as the tractor 62 illustrated, and an air cart 12. In addition, tractor 62 includes several tractor controllers 64 and a hydraulic controller 66 coupled together, and configured to communicate with the air cart 12 on an ISOBUS 68. Tractor controllers 64 control a variety of tractor functions, such as the engine, brakes, transmission, and so on. Hydraulic controller 66 is configured to control the flow of hydraulic fluid throughout the system 60. For example, hydraulic controller 66 can be configured to adjust the flow of fluid for various hydraulic actuators in implement 10, in the air cart 12 and / or on tractor 62. In the illustrated mode, hydraulic controller 66 is coupled communicatively to a hydraulic valve 70 via an interface 72 (eg CAN bus, ISOBUS, etc.).
    [024] Valve 70 (eg proportional control valve) controls the flow of hydraulic fluid to the air cart 12. In particular, hydraulic fluid from a fluid source 74 is pumped by a pump 76 to the valve 70. When hydraulic controller 66 instructs valve 70 to open, hydraulic fluid from pump 76 flows through valve 76. Conversely, when hydraulic controller 66 instructs valve 70 to close, the flow of hydraulic fluid through valve 70 It is blocked. It should be noted that valve 70 can also be moved to a partially open position, thereby enabling hydraulic controller 66 to also control the flow of hydraulic fluid to
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    10/16 the air cart 12.
    [025] In the illustrated mode, tractor 62 includes a user interface 78 coupled communicatively to ISOBUS 68. User interface 78 includes several controls that allow the operator to modify various parameters associated with the operation of the tractor. For example, the user interface 78 may include buttons, indicators, touch screen interface, and / or other controls. In certain embodiments, the user interface 78 can enable the operator to manually adjust a desired product flow rate for product distribution within the field. For example, the operator can manually select an initial product flow rate, and / or adjust the product flow rate during sowing / planting operations. Alternatively, the operator can manually adjust the product flow rate from a standard value product flow rate, and / or manually override an automatically selected product flow rate.
    [026] Tractor 62 includes a device for perceiving spatial location or position, such as a Global Positioning System (GPS) 80 receiver. The GPS 80 receiver is communicatively coupled to ISOBUS 68 and can be used to determine the location of the tractor 62. The GPS receiver can also be used to determine a ground speed of tractor 62 and / or an air cart 12. Alternatively, the GPS receiver 80 can be mounted on an air cart 12 or implement 10, and communicatively coupled to tractor 62 via ISOBUS 68. A monitor 62 is also communicatively coupled to ISOBUS 68. Monitor 82 can present a variety of operational parameters for the operator, such as a field map, the amount of product available for distribution, the amount of fuel remaining, engine speed, and so on. In addition, monitor 82 is communicatively coupled to a storage device 84. For example, monitor 82 may have a bus port
    Petition 870190008573, of 01/25/2019, p. 30/38
    11/16 universal serial (USB) to receive a USB memory device. In such a configuration, monitor 82 can be configured to provide data from the USB memory device to ISOBUS 68. In other embodiments, storage device 84 can be attached directly to ISOBUS 68, or storage device 84 can be attached to another device on tractor 62.
    [027] The storage device 84 can store data associated with the operation of tractor 62, among other parameters. For example, storage device 84 may contain a prescription map. The prescription map includes a field diagram, and information that associates the tractor's position with the product flow rate. For example, the prescription map may include instructions for providing an increased amount of product for certain rows of soil, and a reduced amount of product for other rows of soil. In this configuration, the tractor controller 64 can instruct the measurement system to provide a desired product flow rate based on the prescription map, and the position of the tractor (for example, as determined by the GPS receiver 80). The prescription map is a type of product distribution entry that can be used in determining a desired product flow rate. As commented in detail below, the desired product flow rate can be used to determine a desired air flow rate that effectively transports the product through the distribution hoses without blowing the product out of the seed ditches.
    [028] In the illustrated embodiment, hydraulic valve 70 is used to control the amount of hydraulic fluid flowing through a hydraulic line 86 to a hydraulically controlled fan motor 88 in the air cart 12. A speed of fan motor 88 is based on the pressure and / or flow rate of the hydraulic fluid flowing to the fan motor 88. For example, as the pressure and / or flow rate of the hydraulic fluid increases, the speed of the fan motor 88 can increase. Conversely, as the pressure and / or rate decreases
    Petition 870190008573, of 01/25/2019, p. 31/38
    12/16 hydraulic fluid flow, can slow the speed of the fan motor 88. Motor 88 is used to control (for example, produce and direct) the flow rate of the air flow that carries product from the measurement system to product distribution devices.
    [029] The air cart 12 also includes an air cart controller 90 which is used to control various functions of the air cart 12, including the air transport system. The air cart controller 90 is communicatively coupled to the various systems throughout the tractor 12 via ISOBUS 68. In addition, the air cart controller 90 is an air cart controller with a ground speed sensor 92 and a sensor airflow rate 94. Ground speed sensor 92 measures ground speed of air cart 12, and provides ground speed for air cart controller 90 and / or ISOBUS 68. In addition, the air speed sensor airflow 94 measures the flow rate (for example, speed, mass flow rate, volumetric flow rate, etc.) of the air flow provided by the fan motor 88, and emits a signal indicating the flow rate for the air cart controller 90 and / or for ISOBUS 68.
    [030] During operation, the air cart 12 provides an indication of the ground speed of the air cart 12 to the hydraulic controller 66 (for example, via a signal sent from the ground speed sensor 92 to the hydraulic controller 66). In certain embodiments, the hydraulic controller 66 receives an indication of the ground speed of the air cart 12 from the GPS receiver 80. The hydraulic controller 66 is also configured to receive a desired rate of product flow. As previously mentioned, the desired product flow rate can be selected manually by an operator, or the desired product flow rate can be provided by a prescription map. In addition, the desired product flow rate can be initially set to a standard value (for example, via the prescription map). The operator can then
    Petition 870190008573, of 01/25/2019, p. 32/38
    13/16 adjust and / or cancel the default value for a desired product flow rate.
    [031] Hydraulic controller 66 uses the product flow rate (for example, as determined by the ground speed of the air cart 12, and the desired product flow rate) to determine a fan motor speed. In certain embodiments, the air cart controller 90 can receive the ground speed of the air cart 12 and the desired rate of product flow instead of the hydraulic controller 66. In such embodiments, the air cart controller 90 can determine the speed of the fan motor using the ground speed of the air cart 12 and the desired rate of product flow. In other embodiments, the ground speed used to determine the fan motor speed may be the measured ground speed of the tractor 62.
    [032] After determining the desired fan motor speed, hydraulic controller 66 sends a signal to hydraulic valve 70 which includes hydraulic valve 70 to provide a desired flow rate of hydraulic fluid to the fan motor 88, thereby adjusting the fan motor 88 to the desired speed. Hydraulic controller 66 can use flow sensor feedback 94 to adjust the fan speed to provide the desired airflow rate. In addition, flow sensor 94 can provide an indication that the product is blocking the conduits that extend from the measurement system to the implement. Such a lock indication can be provided for the air cart controller 90 and / or the hydraulic controller 66. The air cart controller 90 and / or the hydraulic controller 66 can use the lock indication to determine a temporary fan speed. which increases the air flow rate to move the blocked material. For example, hydraulic controller 66 can instruct valve 70 to temporarily increase fan speed until flow sensor 94 indicates normal flow rates through the manifold hoses.
    Petition 870190008573, of 01/25/2019, p. 33/38
    14/16 [033] As will be appreciated, the desired product flow rate may change during operation. For example, the desired product flow rate may change as the location of the tractor 62 changes. Therefore, the fan motor speed may change as the location of the tractor 62 changes. In addition, the engine speed of fan can change as the speed of tractor 62 changes.
    [034] In certain embodiments, the fan speed can be particularly adjusted based on the ground speed of the air cart 12. For example, the operator can select a desired fan speed via the user interface 78. The controller hydraulic 66 can then adjust the desired fan speed based on the ground speed of the tractor 62 and / or the air cart 12. For example, the operator can adjust the desired fan speed between approximately 2500 to 3500 RPM, 3000 to 4000 RPM, and so on. The desired fan speed can be adjusted based on an expected ground speed of the tractor 62 and / or the air cart 12. For example, if the tractor is expected to move at a ground speed of approximately 10 kph, the fan speed can be adjusted to approximately 3500 RPM. Therefore, when tractor 62 is moving at approximately 10 kph, hydraulic controller 66 can adjust the speed of fan motor 88 to approximately 3500 RPM. However, when tractor 62 increases the speed above 10 kph, hydraulic controller 66 can increase the speed of fan motor 88 to a speed greater than 3500 RPM. Conversely, when tractor 62 slows down below 10 kph, hydraulic controller 66 can adjust fan speed 88 to less than 3500 RPM. Changing the speed of the fan motor 88 based on the speed of the tractor 62 allows an appropriate amount of product to be distributed (for example, as the tractor 62 travels at a faster speed)
    Petition 870190008573, of 01/25/2019, p. 34/38
    15/16 fast, more product is needed to achieve a specific product flow rate, so the speed of the fan motor 88 will increase to obtain sufficient air flow for the largest amount of product).
    [035] As hydraulic controller 66 and valve 70 are mounted on tractor 62, the flow of hydraulic fluid to fan motor 88 is controlled directly by tractor 62. Therefore, a separate hydraulic valve or control system mounted on the tractor is avoided. air cart 12. In this way, certain components are not duplicated in the combined system 60. Furthermore, the fluid is not supplied to the fan motor 88 unnecessarily (ie, wasted), but only when controlled to do so. In other words, hydraulic controller 66 on tractor 62 does not allow a constant flow of hydraulic fluid to the air cart 12, which the air cart 12 then determines how to use. Instead, hydraulic controller 66 allows hydraulic fluid to flow directly to fan motor 88 in air cart 12 so that hydraulic fluid is limited to the amount of hydraulic fluid intended to control fan motor 88. As can be appreciated, to close the control loop, air cart 12 provides feedback to tractor 62. On tractor 62, hydraulic controller 66 uses feedback from air cart 12 to control the amount of hydraulic fluid flowing to the fan motor 88, and thereby the air flow. By limiting the flow of hydraulic fluid to the air cart 12 to only what is to be used by the fan motor 88, energy is conserved. In other systems that do not use the combined system 60, energy can be wasted if unnecessary hydraulic fluid flows to the fan motor 88 (for example, excess heat can be generated by the hydraulic fluid flowing through the fluid control valve in the air cart 12). In addition, in such systems, the 62 tractor can use unnecessary horsepower to supply unnecessary hydraulic fluid. Therefore, the combined system 60 can be implemented to conserve energy.
    Petition 870190008573, of 01/25/2019, p. 35/38
    16/16 [036] Figure 4 is a schematic diagram of another modality of a system 60 for distributing agricultural product in a field. Similar to the system 60 described above with reference to Figure 3, the illustrated system 60 includes a flow control device mounted on the tractor 62, and configured to control the flow rate of hydraulic fluid to the fan motor 88. However, the device flow control valve in Figure 4 is a hydraulic fan pump 96. Like pump 70 in Figure 3, fan pump 96 is used to control the flow rate and / or pressure of the hydraulic fluid flowing to the fan motor 88. The hydraulic controller 66 sends indications to the fan pump 96 to control the fan pump 96, thereby adjusting the speed of the fan motor 88. The fan pump 96 is configured to receive an indication from the hydraulic controller 66 for or increase or decrease the flow rate of hydraulic fluid through fan pump 96. As such, fan pump 96 is another example of the fluid control device x which can be communicatively coupled to the hydraulic controller 66 to control the flow of the hydraulic fluid to the fan motor 88 based on the determined fan motor speed.
    [037] Although only certain aspects of the invention have been illustrated and described here, many modifications and changes will occur to those skilled in the art. Therefore, it should be understood that the appended claims are intended to cover all such modifications and alterations that affect the true spirit of the invention.
    权利要求:
    Claims (10)
    [1]
    1. System for the distribution of an agricultural product, CHARACTERIZED by the fact that it comprises:
    an air transport system having a blower (34) configured to supply an air stream (40) to move the measured product (42) towards a dispensing device (16), where the air transport system it is mounted on an air cart (12); and a control circuit (60) mounted on an agricultural vehicle and configured to adjust a blower speed (34) based on a product flow rate from the air cart.
    [2]
    2/2 that the desired product flow rate is at least partially based on a prescription map.
    2. System according to claim 1, CHARACTERIZED by the fact that the blower (34) comprises a hydraulically controlled fan, and the control circuit (60) is configured to adjust the speed of the hydraulically controlled fan by means of a device flow control system mounted on the agricultural vehicle.
    [3]
    3. System according to claim 2, CHARACTERIZED by the fact that the flow control device comprises a hydraulic valve (70), a hydraulic pump (96) or a combination thereof.
    [4]
    4. System, according to claim 1, CHARACTERIZED by the fact that the product flow rate (54) from the air cart (12) is determined based on a speed on the ground (18) of the air cart, a desired product flow rate, or a combination thereof.
    [5]
    5 by an agricultural vehicle operator.
    5. System according to claim 4, CHARACTERIZED by the fact that the ground speed (18) of the air cart (12) is determined using a position perception device (80), a ground speed sensor ( 92), or a combination thereof.
    [6]
    6. System, according to claim 4, CHARACTERIZED by the fact
    Petition 870190008573, of 01/25/2019, p. 37/38
    [7]
    7. System, according to claim 4, CHARACTERIZED by the fact that the desired product flow rate is configured to be inserted manually
    [8]
    8. System according to claim 4, CHARACTERIZED by the fact that it comprises a storage device (84) coupled communicatively to the control circuit (60), in which the storage device is configured to emit a standard value for the rate desired product flow rate.
    10
    [9]
    9. System, according to claim 8, CHARACTERIZED by the fact that the desired product flow rate is configured to be manually adjusted by an operator of the agricultural vehicle.
    [10]
    10. System according to claim 1, CHARACTERIZED by the fact that the control circuit (60) is configured to adjust the blower speed (34) based on a measured air flow rate.
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    同族专利:
    公开号 | 公开日
    CA2848977A1|2013-04-04|
    RU2014117150A|2015-11-10|
    AU2012313954B2|2016-05-12|
    WO2013046114A1|2013-04-04|
    BR112014006612A2|2017-04-25|
    US8893630B2|2014-11-25|
    CA2848977C|2017-03-21|
    UA110665C2|2016-01-25|
    US20130085598A1|2013-04-04|
    AU2012313954A1|2014-04-17|
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    法律状态:
    2017-10-31| B25D| Requested change of name of applicant approved|Owner name: CNH INDUSTRIAL CANADA, LTD. (CA) |
    2018-05-29| B06F| Objections, documents and/or translations needed after an examination request according art. 34 industrial property law|
    2018-07-03| B06A| Notification to applicant to reply to the report for non-patentability or inadequacy of the application according art. 36 industrial patent law|
    2018-10-30| B06A| Notification to applicant to reply to the report for non-patentability or inadequacy of the application according art. 36 industrial patent law|
    2019-04-16| B06A| Notification to applicant to reply to the report for non-patentability or inadequacy of the application according art. 36 industrial patent law|
    2019-12-10| B09A| Decision: intention to grant|
    2020-02-11| B16A| Patent or certificate of addition of invention granted|Free format text: PRAZO DE VALIDADE: 20 (VINTE) ANOS CONTADOS A PARTIR DE 24/09/2012, OBSERVADAS AS CONDICOES LEGAIS. |
    2020-11-10| B17A| Notification of administrative nullity (patentee has 60 days time to reply to this notification)|Free format text: REQUERENTE DA NULIDADE: SEMEATO S/A INDUSTRIA E COMERCIO - 870200045985 - 13/04/2020 |
    优先权:
    申请号 | 申请日 | 专利标题
    US13/248,661|2011-09-29|
    US13/248,661|US8893630B2|2011-09-29|2011-09-29|System for controlling air flow within an agricultural product metering system|
    PCT/IB2012/055072|WO2013046114A1|2011-09-29|2012-09-24|System for controlling air flow within an agricultural product metering system|
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