Patents by Inventor Duqiang Wu

Duqiang Wu has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Patent number: 10801182
    Abstract: In one aspect, the present subject matter is directed to a system and method for controlling the operation of a work vehicle based on the multi-mode identification of operator inputs. Specifically, the movement of an input device of the work vehicle may be monitored relative to two or more movement ranges defined within or across the range of positions defining the input device's overall travel range. When it is detected that the operator has made a pattern of input device movements relative to one of the movement ranges, a new operating mode may be selected or activated that adjusts the transfer function used to control the movement of a component of the work vehicle based on the position of the input device.
    Type: Grant
    Filed: October 19, 2018
    Date of Patent: October 13, 2020
    Assignee: CNH Industrial America LLC
    Inventors: Raul Espinosa, Duqiang Wu, Aditya Singh, Navneet Gulati
  • Publication number: 20200308803
    Abstract: In one aspect, a method for providing automatic weight monitoring and control during the performance of a material moving operation by a work vehicle includes receiving an input associated with a target weight for a material to be collected within the implement. Additionally, upon receipt of an indication that an implement of the vehicle has been pushed into a source of the material, the method includes automatically controlling an operation of loader arms of the vehicle to raise the implement relative to the source of the material. In addition, the method includes monitoring a weight of the material collected within the implement as the implement is being raised relative to the source of material, and notifying an operator of the work vehicle when it is determined that the monitored weight of the material is equal to the target weight or fails within a tolerance range associated with the target weight.
    Type: Application
    Filed: March 25, 2019
    Publication date: October 1, 2020
    Inventors: ADITYA SINGH, NAVNEET GULATI, Duqiang Wu
  • Patent number: 10729068
    Abstract: A method for automatically controlling a position of one or more ground engaging tools of an agricultural implement is relative to a ground surface may include monitoring a position signal indicative of a position of a ground engaging tool of the implement. The position signal may have an associated system delay time. The method also may include estimating an arrival time when the position of the ground engaging tool will be within a predetermined threshold of a target position based on the monitored position signal and the system delay time associated with the monitored position signal. The method may include adjusting the position of the ground engaging tool and terminating the adjustment of the ground engaging tool at a termination time determined based on the arrival time.
    Type: Grant
    Filed: December 4, 2017
    Date of Patent: August 4, 2020
    Assignee: CNH Industrial America LLC
    Inventors: Duqiang Wu, Aditya Singh, Navneet Gulati, Jason Fox
  • Publication number: 20200187407
    Abstract: In one aspect, a system for regulating the flow of fluid supplied to actuators of an agricultural implement may include a tool and a fluid-driven actuator configured to actuate the tool relative to a surface. The system may also include a pump configured to supply fluid to the fluid-driven actuator and a valve configured to control a flow of the fluid supplied to the fluid-driven actuator. Furthermore, the system may include a first sensor configured to detect a parameter indicative of a first pressure upstream of the valve and a second sensor configured to detect a parameter indicative of a second pressure downstream of the valve. Additionally, the system may include a controller communicatively coupled to the first and second sensors, with the controller configured to determine a pressure differential across the valve based on measurement signals received from the first and second sensors.
    Type: Application
    Filed: December 14, 2018
    Publication date: June 18, 2020
    Inventors: Christopher Stovall, Michael Freisleben, Duqiang Wu, John C. Endsley, Michael Glennon, Kevin D. McKee
  • Patent number: 10645857
    Abstract: An implement control system includes an automatic control valve assembly configured to utilize fluid from a supply conduit to cause a cylinder to raise a ground engaging tool relative to a soil surface and to utilize the fluid flow from the supply conduit to cause the cylinder to lower the ground engaging tool relative to the soil surface while an automatic control mode is active. The implement control system also includes a controller configured to control the automatic control valve assembly based on a position of the ground engaging tool relative to the soil surface to control the position of the ground engaging tool relative to the soil surface while the automatic control mode is active. The controller is also configured to deactivate the automatic control mode in response to fluid pressure within a first manual control conduit exceeding a threshold pressure.
    Type: Grant
    Filed: July 27, 2018
    Date of Patent: May 12, 2020
    Assignee: CNH Industrial America LLC
    Inventors: Michael W. Glennon, Duqiang Wu, John C. Endsley, Christopher Stovall
  • Publication number: 20200123738
    Abstract: In one aspect, the present subject matter is directed to a system and method for controlling the operation of a work vehicle based on the multi-mode identification of operator inputs. Specifically, the movement of an input device of the work vehicle may be monitored relative to two or more movement ranges defined within or across the range of positions defining the input device's overall travel range. When it is detected that the operator has made a pattern of input device movements relative to one of the movement ranges, a new operating mode may be selected or activated that adjusts the transfer function used to control the movement of a component of the work vehicle based on the position of the input device.
    Type: Application
    Filed: October 19, 2018
    Publication date: April 23, 2020
    Inventors: Raul Espinosa, Duqiang Wu, Aditya Singh, Navneet Gulati
  • Publication number: 20200060064
    Abstract: A hydraulic system including a supply line, an implement-based control valve, an override valve supported by the implement, and a bypass line. The control valve is fluidly coupled to the supply line and configured to regulate a flow of pressurized hydraulic fluid supplied through a downstream actuator line to a hydraulic actuator of the implement. The override valve is fluidly coupled to the actuator line downstream of the control valve and includes a supply position at which the flow of pressurized hydraulic fluid from the control valve passes through the override valve to the hydraulic actuator. The override valve is actuatable to at least one override position at which the flow of pressurized hydraulic fluid from the control valve is cut-off. The bypass line is fluidly coupled between the supply line and the override valve such that a portion of the pressurized hydraulic fluid flows to the hydraulic actuator.
    Type: Application
    Filed: August 24, 2018
    Publication date: February 27, 2020
    Inventors: Duqiang Wu, John C. Endsley, Michael Glennon, Kevin D. McKee
  • Publication number: 20200060063
    Abstract: A hydraulic system includes a supply line, at least one implement-based control valve, an implement-based pressure regulating valve, and a load sensing circuit. The implement-based control valve(s) is fluidly coupled to the supply line and configured to regulate a flow of the pressurized hydraulic fluid supplied through at least one downstream actuator line to at least one hydraulic actuator of the implement. The implement-based pressure regulating valve is fluidly coupled to the supply line upstream of the control valve(s) and configured to regulate a fluid pressure to be equal to or greater than a minimum fluid pressure. The load sensing circuit is fluidly coupled to the pressure regulating valve and provides a line or load pressure to the pressure regulating valve. The pressure regulating valve is configured to regulate the supply of the pressurized hydraulic fluid based on the line pressure.
    Type: Application
    Filed: August 24, 2018
    Publication date: February 27, 2020
    Inventors: Duqiang Wu, John C. Endsley, Michael Glennon, Kevin D. McKee
  • Publication number: 20200045868
    Abstract: The present inventors have recognized that hydraulic cylinders for raising and lowering ground engaging tools of an implement can be synchronously controlled with respect to a prioritized primary set of tools, such as a section of tillage shanks for ripping compacted soil, which cylinder adjustment affects all other sections due to the arrangement of the primary set on the frame. A user can electronically command new ground engaging depths for the primary set and/or any secondary set of ground engaging tools. If the primary set is updated, the system can synchronously control the primary set and the other sections to adjust respective cylinders to achieve desired depths. However, if only a second set is updated, and not the primary set, the system can control only the second set to adjust its cylinder to the desired depth without affecting the primary set or any other second set.
    Type: Application
    Filed: August 10, 2018
    Publication date: February 13, 2020
    Inventors: Duqiang Wu, William Allen, Navneet Gulati, Michael Glennon
  • Publication number: 20200045870
    Abstract: The present inventors have recognized that hydraulic cylinders for raising and lowering “work units” of an agricultural implement used for engaging the ground can be improved by replacing one or more electronically controlled (electrohydraulic) proportional valves associated with a rod port of the cylinder with a simplified, flow control device, such as a pressure regulator, while still using the electronically controlled proportional valves associated with a base port of the cylinder. Due to the weight of the implement being associated with the rod side, which tends to force retraction of the rod when not opposed by the base side, complex proportional valves associated with the rod side can be replaced with such simplified devices providing a relatively low pressure sufficient to move hydraulic fluid with respect to the rod side.
    Type: Application
    Filed: August 10, 2018
    Publication date: February 13, 2020
    Inventors: Christopher Stovall, Duqiang Wu, Navneet Gulati, Michael Glennon
  • Publication number: 20200029485
    Abstract: An implement control system includes an automatic control valve assembly configured to utilize fluid from a supply conduit to cause a cylinder to raise a ground engaging tool relative to a soil surface and to utilize the fluid flow from the supply conduit to cause the cylinder to lower the ground engaging tool relative to the soil surface while an automatic control mode is active. The implement control system also includes a controller configured to control the automatic control valve assembly based on a position of the ground engaging tool relative to the soil surface to control the position of the ground engaging tool relative to the soil surface while the automatic control mode is active. The controller is also configured to deactivate the automatic control mode in response to fluid pressure within a first manual control conduit exceeding a threshold pressure.
    Type: Application
    Filed: July 27, 2018
    Publication date: January 30, 2020
    Inventors: Michael W. Glennon, Duqiang Wu, John C. Endsley, Christopher Stovall
  • Patent number: 10501910
    Abstract: A method for controlling a lift assembly for a work vehicle may include receiving an input command associated with controlling movement of a loader arm of the lift assembly, and determining a travel velocity at which a reference location on the loader arm is to be moved based on the input command. In addition, the method may include determining at least one lift cylinder command and at least one control cylinder command based at least in part on the determined travel velocity and position-based inputs associated with moving the reference location along a predetermined travel path, and actively controlling an operation of a lift cylinder and a control cylinder of the lift assembly based on the lift cylinder command(s) and the control cylinder command(s), respectively, such that the reference location on the loader arm is moved along the predetermined travel path at the determined travel velocity.
    Type: Grant
    Filed: September 12, 2017
    Date of Patent: December 10, 2019
    Assignee: CNH Industrial America LLC
    Inventors: Duqiang Wu, Navneet Gulati, Aditya Singh
  • Publication number: 20190292751
    Abstract: A movable machine including a chassis, a tool coupled to the chassis, an operator control carried by the chassis and a controller. The controller is communicatively coupled to the operator control. The controller being configured to send a force feedback and/or a vibration feedback to the operator control thereby conveying information to the operator. The information is not related to a load encountered by the tool.
    Type: Application
    Filed: June 7, 2019
    Publication date: September 26, 2019
    Inventors: Gary R. Kassen, Duqiang Wu, Aditya Singh, Uli Melchinger, Navneet Gulati, Patrick Thomas Dean
  • Publication number: 20190177947
    Abstract: In one aspect, an implement adjustment assembly may include a lift arm pivotably coupled to a frame of a work vehicle at a first pivot joint and a bell crank pivotably coupled to the lift arm. Furthermore, the implement adjustment assembly may include a first actuator pivotably coupled to the frame of the work vehicle at a second pivot joint, with the first actuator further being pivotably coupled to the bell crank. The second pivot joint may be spaced apart from the first pivot joint by a first distance along a vertical direction of the work vehicle and by a second distance along a longitudinal direction of the work vehicle, with the first distance being at least one and half times greater than the second distance.
    Type: Application
    Filed: December 12, 2017
    Publication date: June 13, 2019
    Inventor: Duqiang WU
  • Patent number: 10316492
    Abstract: A movable machine including a chassis, a tool coupled to the chassis, an operator control carried by the chassis and a controller. The controller is communicatively coupled to the operator control. The controller being configured to send a force feedback and/or a vibration feedback to the operator control thereby conveying information to the operator. The information is not related to a load encountered by the tool.
    Type: Grant
    Filed: July 30, 2015
    Date of Patent: June 11, 2019
    Assignee: CNH Industrial America LLC
    Inventors: Gary R. Kassen, Duqiang Wu, Aditya Singh, Uli Melchinger, Navneet Gulati, Patrick T. Dean
  • Publication number: 20190166762
    Abstract: A method for automatically controlling a position of one or more ground engaging tools of an agricultural implement is relative to a ground surface may include monitoring a position signal indicative of a position of a ground engaging tool of the implement. The position signal may have an associated system delay time. The method also may include estimating an arrival time when the position of the ground engaging tool will be within a predetermined threshold of a target position based on the monitored position signal and the system delay time associated with the monitored position signal. The method may include adjusting the position of the ground engaging tool and terminating the adjustment of the ground engaging tool at a termination time determined based on the arrival time.
    Type: Application
    Filed: December 4, 2017
    Publication date: June 6, 2019
    Inventors: Duqiang Wu, Aditya Singh, Navneet Gulati, Jason Fox
  • Publication number: 20190078288
    Abstract: A method for controlling a lift assembly for a work vehicle may include receiving an input command associated with controlling movement of a loader arm of the lift assembly, and determining a travel velocity at which a reference location on the loader arm is to be moved based on the input command. In addition, the method may include determining at least one lift cylinder command and at least one control cylinder command based at least in part on the determined travel velocity and position-based inputs associated with moving the reference location along a predetermined travel path, and actively controlling an operation of a lift cylinder and a control cylinder of the lift assembly based on the lift cylinder command(s) and the control cylinder command(s), respectively, such that the reference location on the loader arm is moved along the predetermined travel path at the determined travel velocity.
    Type: Application
    Filed: September 12, 2017
    Publication date: March 14, 2019
    Inventors: Duqiang WU, Navneet Gulati, Aditya Singh
  • Patent number: 10017912
    Abstract: A method for automatically controlling the operation of a lift assembly of a work vehicle may generally include receiving an input associated with moving loader arms and/or an implement of the lift assembly to a pre-defined position and monitoring a position of the loader arms and/or the implement relative to the pre-defined position. In addition, while a reference point associated with the loader arms and/or the implement is located outside an outer threshold boundary associated with the pre-defined position, the method may include transmitting a first command signal(s) to move the loader arms and/or the implement towards the pre-defined position. Moreover, when the reference point is moved within the outer threshold boundary, the method may include transmitting a second command signal(s) in order to ramp down a movement velocity of the loader arms and/or the implement as the loader arms and/or the implement is moved closer to the pre-defined position.
    Type: Grant
    Filed: October 21, 2014
    Date of Patent: July 10, 2018
    Assignee: CNH Industrial America LLC
    Inventors: Aditya Singh, Duqiang Wu, Navneet Gulati
  • Patent number: 9822507
    Abstract: A method for automatically adjusting the position of an implement of a lift assembly may generally include receiving a signal indicative of a position and/or a movement parameter of loader arms of the lift assembly and receiving a signal indicative of a pressure of a hydraulic fluid supplied within the lift assembly. The method may also include calculating a first correction signal associated with adjusting the position of the implement, wherein the correction signal is calculated by inputting the position and/or the movement parameter and the fluid pressure into a control equation based on a model of the operational dynamics of the lift assembly. In addition, the method may include generating a valve command signal based at least in part on the correction signal and transmitting the valve command signal to a valve for maintaining the implement at a fixed orientation relative as the loader arms are being moved.
    Type: Grant
    Filed: December 2, 2014
    Date of Patent: November 21, 2017
    Assignee: CNH Industrial America LLC
    Inventors: Aditya Singh, Duqiang Wu, Navneet Gulati
  • Patent number: 9796571
    Abstract: A method for automatically adjusting the position of an implement for a work vehicle may generally include receiving an input associated with a flow-related parameter of the work vehicle as loader arms of the work vehicle are being moved and determining a speed control signal for the implement based at least in part on the flow-related parameter, wherein the speed control signal is associated with an implement speed at which the implement is to be moved in order to maintain the implement at a fixed orientation relative to a given reference point. In addition, the method may include generating a valve command signal based at least in part on the speed control signal and transmitting the valve command signal to a valve associated with the implement in order to maintain the implement at the fixed orientation as the loader arms are being moved.
    Type: Grant
    Filed: August 6, 2015
    Date of Patent: October 24, 2017
    Assignee: CNH Industrial America LLC
    Inventors: Aditya Singh, Duqiang Wu, Navneet Gulati