IP Library › Granted Patent US 9,635,802
Granted Patent B2
US 9,635,802 · App. 14/874,208 · Granted May 2, 2017

Automatic seeding system motor reversal

Inventors: Gerald E. Rains (Eldridge, IA); Michael E. Frasier (Moline, IL)
Assignee: Deere & Company
A01C7/046A01C7/128A01C7/16A01C14/00A01C21/00A01C5/064A01C5/068
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Quick Facts
Patent No.
US 9,635,802
App. No.
14/874,208
Granted
May 2, 2017
Kind
B2
Abstract

A motor drives a seeding system. A sensor senses a characteristic of the motor and a motor jam is detected based on the sensed characteristic. The motor is momentarily reversed, when a jam is detected.

Claims (59)

1. A mobile planting machine, comprising:

a seeding system configured to meter and deliver seed from the mobile planting machine, the seeding system comprising:

a motor that drives the seeding system; and

a sensor configured to sense a characteristic of the motor and generate a sensor signal indicative of the characteristic;

a jam detection component configured to receive the sensor signal and compare the sensor signal to a predefined range, wherein predefined range indicates a normal operating characteristic of the motor, and, based on the comparison, detect a jam in the seeding system and generate a jam signal; and

a motor control system configured to receive the jam signal and reverse an operating direction of the motor based on the jam signal.

2. The mobile planting machine of claim 1 and further comprising:

a user interface component configured to display information related to the mobile planting machine, wherein the user interface component is configured to receive the jam signal and provide a jam indication based on the jam signal.

3. The mobile planting machine of claim 2 wherein the seeding system comprises a seed metering system in a row unit.

4. The mobile planting machine of claim 3 , wherein the seed metering system comprises:

a rotatable metering component, configured to meter seed, wherein the motor is a metering motor configured to drive the rotatable metering component, and wherein the jam detection component is configured to generate the jam signal indicative of a jam in the rotatable metering component.

5. The mobile planting machine of claim 1 wherein the seeding system comprises:

a seed delivery system and wherein the motor drives the seed delivery system.

6. The mobile planting machine of claim 5 wherein the seed delivery system comprises:

a brush belt comprising a plurality of bristles configured to receive metered seeds, and wherein the motor is a conveyance motor configured to drive the brush belt, wherein the jam detection component is configured to generate the jam signal indicative of a jam in the seed delivery system.

7. The mobile planting machine of claim 5 wherein the seed delivery system comprises a flighted belt delivery component.

8. The planting machine of claim 1 , wherein the sensor comprises:

a motor speed sensor that detects a motor speed of the motor.

9. The planting machine of claim 1 , wherein the sensor comprises:

a torque sensor that detects a torque generated by the motor.

10. A method of controlling a mobile planting machine, the method comprising:

sensing a characteristic of a motor that drives a seeding system;

generating a sensor signal indicative of the sensed characteristic of the motor;

detecting whether a jam occurs in the seeding system based on a comparison of the sensor signal to a predefined range, wherein the predefined range indicates a normal operating characteristic of the motor;

upon detecting the jam, controlling the motor to move in a reverse direction; and

controlling the motor to move in a forward direction.

11. The method of claim 10 , wherein sensing a characteristic of the motor comprises:

sensing a motor speed of the motor.

12. The method of claim 10 , wherein sensing a characteristic of the motor comprises:

sensing a torque generated by the motor.

13. The method of claim 10 and further comprising:

repeating the step of detecting whether a jam is present in the seeding system; and

if so, controlling the motor to momentarily reverse the direction of the motor a predetermined number of times.

14. The method of claim 13 and further comprising:

if the steps are repeated the predetermined number of times, then generating an operator jam notification.

15. A method for resolving a detected jam in a mobile planting machine, the method comprising:

receiving a signal based on a sensed characteristic of a motor driving a seeding system in the planting machine;

detecting a jam within the seeding system, based on a comparison of the signal to a predefined range indicating a normal operating characteristic of the motor;

controlling the motor to operate in a reverse direction based on the detected jam;

controlling the motor to operate in a forward direction;

receiving the signal indicative of the characteristic of the motor; and

determining, based on the received signal, whether the jam is still detected.

16. The method of claim 15 , wherein the seeding system comprises a metering system with a metering motor, and wherein receiving the signal comprises:

receiving the signal from a sensor sensing the characteristic of the metering motor.

17. The method of claim 15 , wherein the seeding system comprises a seed delivery system with a conveyance motor, and wherein receiving the signal comprises:

receiving the signal from a sensor sensing the characteristic of the conveyance motor.

18. The method of claim 15 , wherein the signal comprises a motor speed signal indicative of motor speed, and wherein detecting a jam comprises:

comparing the motor speed to the predefined range, wherein the predefined range is a threshold motor speed;

determining whether the motor speed is less than the threshold motor speed; and

if so, detecting a jam.

19. The method of claim 15 , wherein the signal comprises a torque signal indicative of a torque generated by the motor and wherein detecting a jam comprises:

comparing the torque to the predefined range, wherein the predefined range is a threshold motor torque;

determining whether the torque is greater than the threshold motor torque; and

if so, detecting a jam.

20. The method of claim 15 , and further comprising:

in response to determining that the jam is still detected, repeating the steps of controlling the motor to operate in the reverse direction;

controlling the motor to operate in the forward direction;

receiving the signal; and

determining, based on the signal, whether the jam is still detected.

Assignments (1)
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Oct 16, 2015
From: RAINS, GERALD E.; FRASIER, MICHAEL E.
To: DEERE & COMPANY
Reel/Frame 036809/0726 →
Continuity (1)
Related Publication 20170094893A1 · Apr 6, 2017