Agricultural implement suspension system

Patent metadata

Field	Value
Publication number	US-12144337-B2
Application number	US-202318172671-A
Country	US
Kind code	B2
Filing date	Feb 22, 2023
Priority date	Jul 12, 2018
Publication date	Nov 19, 2024
Grant date	Nov 19, 2024

Abstract

A semi-active suspension system includes a suspension element having a damping coefficient range. The suspension element optionally includes an implement end and a chassis end. The semi-active suspension system includes a suspension control circuit in communication with the suspension element. The suspension control circuit optionally includes a kinematic assessment circuit in communication with one or more sensors. The kinematic assessment circuit is configured to measure or determine kinematic characteristics of one or more of the agricultural implement and the chassis. The suspension control circuit optionally includes a damping control circuit, and the damping control circuit generates a specified damping characteristic based on the measured or determined kinematic characteristics. The damping control circuit optionally directs the suspension element to operate within the damping coefficient range based on the specified damping characteristic.

First claim

The claimed invention is:

1. A semi-active suspension system comprising:
a suspension element having a variable suspension force, the suspension element configured for coupling between a chassis and a boom configured to apply an agricultural product; and
a suspension control processor in communication with the suspension element, the suspension control processor including:
a kinematic assessment circuit in communication with one or more sensors, the kinematic assessment circuit configured to evaluate kinematic characteristics of one or more of the boom, implement support frame, or the chassis; and
a suspension control circuit configured to direct the suspension element to operate with the variable suspension force based on the evaluated kinematic characteristics.

2. The semi-active suspension system of claim 1 , wherein the variable suspension force is configured to compensate for a kinematic load incident upon one or more of the chassis, the agricultural implement, or the implement support frame.

3. The semi-active suspension system of claim 1 , wherein the variable suspension force includes a damping coefficient range, and the suspension control processor is configured to direct the suspension element to operate within the damping coefficient range and change the variable suspension force.

4. The semi-active suspension system of claim 1 , further comprising the chassis and the implement support frame.

5. The semi-active suspension system of claim 4 , wherein the suspension element is coupled between the chassis and the implement support frame.

6. The semi-active suspension system of claim 4 , further comprising the boom.

7. The semi-active suspension system of claim 6 , wherein the boom includes one or more of a first boom and a second boom.

8. The semi-active suspension system of claim 7 , wherein the implement support frame is coupled between the first boom and the second boom.

9. The semi-active suspension system of claim 6 , wherein the boom is coupled with implement support frame.

10. The semi-active suspension system of claim 4 , further comprising one or more kinematic sensors configured to measure kinematic characteristics.

11. The semi-active suspension system of claim 10 , wherein the one or more kinematic sensors includes a first kinematic sensor coupled with the chassis.

12. The semi-active suspension system of claim 11 , wherein the one or more kinematic sensors includes a second kinematic sensor coupled with one or more of the boom or the implement support frame.

13. The semi-active suspension system of claim 1 , further comprising the chassis and the boom.

14. The semi-active suspension system of claim 13 , wherein the suspension element is coupled between the chassis and the boom.

15. A semi-active suspension system comprising:
a chassis;
an implement support frame coupled with the chassis;
a boom coupled with the implement support frame, wherein the boom is configured to apply an agricultural product;
a suspension element having a variable suspension force, the suspension element coupled between the chassis and one or more of the boom or the implement support frame;
one or more sensors configured to measure kinematic characteristics of one or more of the boom, the implement support frame, and the chassis; and
a suspension control processor in communication with the suspension element, the suspension control processor including:
a kinematic assessment circuit in communication with the one or more sensors, the kinematic assessment circuit configured to receive measurements of the one or more sensors or determine kinematic characteristics of one or more of the boom, implement support frame, or the chassis; and
a suspension control circuit configured to direct the suspension element to operate with the variable suspension force based on the measured or determined kinematic characteristics.

16. The semi-active suspension system of claim 15 , wherein the variable suspension force is configured to compensate for a kinematic load incident upon one or more of the chassis, the boom, or the implement support frame.

17. The semi-active suspension system of claim 15 , wherein the variable suspension force includes a damping coefficient range, and the suspension control processor is configured to direct the suspension element to operate within the damping coefficient range and change the variable suspension force.

18. The semi-active suspension system of claim 15 , wherein the one or more kinematic sensors includes a first kinematic sensor coupled with the chassis.

19. The semi-active suspension system of claim 18 , wherein the one or more kinematic sensors includes a second kinematic sensor coupled with one or more of the boom or the implement support frame.

20. A method for operating a semi-active suspension system, the method comprising:
measuring kinematic characteristics of one or more of a boom configured to apply an agricultural product, an implement support frame, or a chassis using at least one kinematic sensor;
evaluating the kinematic characteristics using a suspension control processor; and
directing a suspension element to operate with a variable suspension force based on the evaluated kinematic characteristics, wherein the suspension element is coupled between the chassis and one or more of the agricultural implement or the implement support frame.

21. The method of claim 20 , wherein the variable suspension force is configured to compensate for a kinematic load incident upon one or more of the chassis, boom, or the implement support frame.

22. The method of claim 20 , wherein the variable suspension force includes a damping coefficient range, and the method includes directing the suspension element to operate within the damping coefficient range and change the variable suspension force.

Assignees

• Raven Ind Inc

Inventors

• Weidenbach Alex
• Wagers Jesse Lee
• Preheim John D

Classifications

• A01B63/10

  operated by hydraulic or pneumatic means · CPC title

• A01M7/0089

  Regulating or controlling systems (the delivery being related to the movement of a vehicle B05B9/06) · CPC title

• A01M7/0057 Primary

  with active regulation of the boom position · CPC title