Maximum payload speed manager

• US 6,721,680 B2
• Filed: 12/21/2001
• Issued: 04/13/2004
• Est. Priority Date: 12/21/2001
• Status: Active Grant

• Current Assignee: Caterpillar Incorporated
• Original Assignee: Caterpillar Incorporated
• Inventors: Sorrells, Giles Kent, Barney, Dennis A.
• Primary Examiner(s): Barlow, John
• Assistant Examiner(s): Cherry, Stephen J.
• Application Number:
  US10/024,211
• Publication Number:
  US 20030120455A1
• Time in Patent Office: 844 Days
• Field of Search: 702/174, 702/182, 702/175, 701/98, 701/96, 701/95, 701/93, 701/70, 701/67, 477/120, 477/111
• US Class Current: 702/174
• CPC Class Codes: G01G 19/08 for incorporation in vehicles
• CPC Class Codes: G01G 23/3728 with wireless means

Abstract

A method is provided for promoting compliance by a vehicle operator with a payload standard for a vehicle. The payload weight of the vehicle is determined. The payload weight is compared with the payload standard to determine if the payload weight is compliant with the payload standard. The operation of the vehicle is then limited if the payload weight is not in compliance.

Claims

1. A method for promoting compliance by a vehicle operator with a payload standard for a vehicle, the method comprising:

determining a payload weight of the vehicle;

determining whether the payload weight is in compliance with the payload standard;

limiting operation of the vehicle if the payload weight is not in compliance; and

providing the vehicle operator with action instructions to gain compliance with the payload standard when the payload weight of the vehicle is not in compliance with the payload standard.

2. The method of claim 1, wherein the step of limiting operation of the vehicle includes limiting transmission shift range.

3. The method of claim 1, wherein the step of limiting operation of the vehicle includes limiting engine speed.

4. The method of claim 1, further including:

alerting the vehicle operator when the payload weight of the vehicle is not in compliance with the payload standard.

5. The method of claim 1, further including:

determining again whether the payload weight is in compliance with the payload standard at a predetermined time; and

releasing any limitations on the operation of the vehicle if the payload weight is in compliance.

6. A method for protecting a vehicle carrying a payload having a payload weight, the method comprising:

providing a target payload;

providing an overload setting;

obtaining a payload weight from the vehicle;

determining whether the payload weight is greater than the target payload plus the overload setting;

permitting normal vehicle operation if the payload weight is not greater than the target payload plus the overload setting;

providing a warning event if the payload weight is greater than the target payload plus the overload setting; and

limiting vehicle operation if the payload weight is greater than the target payload plus the overload setting.

7. The method of claim 6, further including:

providing information about payload standards via telemetry equipment.

8. The method of claim 6, further including:

providing a low-threshold value;

determining whether the payload weight is greater than the target payload plus the low-threshold value; and

providing a warning event if the payload weight is greater than the target payload plus the low-threshold value.

9. The method of claim 8, wherein the low-threshold value equals the overload setting divided by two.

10. The method of claim 6, wherein the warning event includes the following step:

storing a record of the overload event.

11. The method of claim 6, wherein the warning event includes the following step:

providing an alert indicating an overloaded situation.

12. The method of claim 11, wherein the alert includes at least one of a video display or an audio message.

13. The method of claim 6, wherein the warning event includes the following step:

sending a record of the overload event to a payload monitoring system.

14. The method of claim 6, wherein the step of permitting limited vehicle operation includes limiting the transmission shift range.

15. The method of claim 6, wherein the step of permitting limited vehicle operation includes limiting the engine speed.

16. A system for protecting a vehicle having a propulsion system and an engine, the vehicle being subject to a payload standard, the system comprising:

a payload sensing system for obtaining a payload weight; and

an on-board computer, operable connected to both the propulsion system and the payload sensing system and including information about the payload standard,

wherein the on-board computer limits vehicle operation when the payload weight obtained from the payload sensing system indicates the vehicle is in non-compliance with the payload standard and provides an operator of the vehicle with action instructions to gain compliance with the payload standard.

17. The system of claim 16, further including a payload monitoring system, wherein the on-board computer sends a message indicating non-compliance to the payload monitoring system.

18. The system of claim 16, wherein the limited vehicle operation permitted by the on-board computer when the vehicle is in noncompliance includes a limited transmission shift range.

19. The system of claim 16 wherein the limited vehicle operation permitted by the on-board computer when the vehicle is in noncompliance includes a limited engine speed.

20. The system of claim 16, wherein the on-board computer further includes a visual display element for providing an alert to a vehicle operator when the vehicle is in non-compliance.

21. The system of claim 16, wherein the information about payload standards is provided to the on-board computer via telemetry equipment.

22. The system of claim 16, wherein the on-board computer is equipped with safeguards to prevent an operator from overriding the onboard computer that limits vehicle operation.

23. The system of claim 22, wherein the safeguards include a password protected system.