Mine Truck to Mine Truck Communication

Patent metadata

Field	Value
Publication number	US-2016355184-A1
Application number	US-201514729311-A
Country	US
Kind code	A1
Filing date	Jun 3, 2015
Priority date	Jun 3, 2015
Publication date	Dec 8, 2016
Grant date	—

Abstract

A method for monitoring and controlling a plurality of mining trucks, while the mining trucks operate on a worksite, is disclosed. The plurality of mining trucks includes, at least, a first truck and a second truck. The method includes monitoring a first speed of the first truck and determining a second speed of the second truck based on, at least, the first speed. The method further includes modulating the second speed based on changes to the first speed and controlling propulsion of the second truck based on the second speed.

First claim

What is claimed is:

1 . A method for monitoring and controlling a plurality of mining trucks while the plurality of mining trucks operate on a worksite, the plurality of mining trucks including at least a first truck and a second truck, the method comprising:
monitoring a first speed of the first truck; determining a second speed of the second truck based on, at least, the first speed; modulating the second speed based on changes to the first speed; and controlling propulsion of the second truck based on the second speed.

2 . The method of claim 1 , further comprising having the second truck follow the first truck, and wherein determining the second speed of the second truck is further based on a following distance between the first truck and the second truck, and modulating the second speed is further based on maintaining the following distance.

3 . The method of claim 2 , wherein the plurality of mining trucks further includes a third truck, the third truck following the second truck, the method further comprising:
determining a third speed of the third truck based on, at least, the second speed; modulating the third speed based on changes to the second speed; and controlling propulsion of the third truck based on the second speed.

4 . The method of claim 3 , wherein the determining the third speed of the third truck is further based on a second following distance between the second truck and the third truck, and modulating the third speed is further based on maintaining the second following distance.

5 . The method of claim 2 , further comprising determining the following distance based on an operating condition associated with one of the first truck or the second truck.

6 . The method of claim 5 , wherein the operating condition is at least one of a load of the first truck or the second truck, engine health of the first truck or the second truck, momentum of the first truck or the second truck when entering a road of the worksite from a grade of the worksite, propulsion capabilities of the first truck or the second truck, drive system torque capabilities of the first truck or the second truck, or braking capabilities of the first truck or the second truck.

7 . The method of claim 1 , wherein the first truck and the second truck operate on a downhill grade of the worksite, and controlling propulsion of the second truck based on the second speed includes retarding propulsion while travelling downhill on the downhill grade.

8 . The method of claim 1 , wherein controlling propulsion of the second truck based on the second speed includes utilizing a throttle lock feature of the second truck to implement the second speed.

9 . A method for monitoring and controlling a plurality of mining trucks while the plurality of mining trucks operate on a worksite, the plurality of mining trucks including at least a first truck and a second truck, the worksite including a first road and a second road, the first road and second road intersecting at an intersection and the first truck travelling on the first road towards the intersection and the second truck travelling on the second road towards the intersection, the method comprising:
monitoring a first speed of the first truck; determining a timeframe in which the first truck will reach the intersection based on the first speed; determining a second speed of the second truck based on, at least, the first speed and the timeframe; and controlling propulsion of the second truck based on the second speed.

10 . The method of claim 9 , wherein determining the second speed of the second truck based on, at least, the first speed and the timeframe includes altering the second speed if the first truck and the second truck, at least in part, will reach the intersection at a substantially similar point in time.

11 . The method of claim 9 , wherein determining the second speed of the second truck further includes increasing the second speed such that the second truck will pass the intersection before the first truck reaches the intersection.

12 . The method of claim 9 , wherein determining the second speed of the second truck further includes decreasing the second speed such that the first truck will pass the intersection before the second truck reaches the intersection.

13 . A system for monitoring and controlling a plurality of mining trucks while the plurality of mining trucks operate on a worksite, the plurality of mining trucks including, at least, a first truck and a second truck, the system including:
a network communication system configured to enable communication amongst the plurality of mining trucks; a plurality of controllers associated with the plurality of mining trucks, each of the plurality of controllers being operatively associated with one of the plurality of mining trucks, the plurality of controllers including, at least, a first controller operatively associated with the first truck and a second controller operatively associated with the second truck, the plurality of controllers being in communication via the network communication system, the plurality of controllers being configured to:
control propulsion of the first truck based on a first speed,
communicate the first speed amongst the plurality of mining trucks via the network communication system;
determine a second speed for the second truck based on, at least, the first speed, and
control propulsion of the second truck based on the second speed.

14 . The system of claim 13 , wherein the plurality of controllers is further configured to modulate the second speed based on changes to the first speed.

15 . The system of claim 14 , wherein the second truck follows the first truck and the plurality of controllers is further configured to:
determine the second speed of the second truck based on a following distance between the first truck and the second truck, and modulate the second speed based on maintaining the following distance.

16 . The system of claim 15 , further comprising one or more sensors operatively associated with at least one of the first truck or the second truck, the one or more sensors being configured to detect an operating condition associated with at least one of the first truck and the second truck, and wherein the plurality of controllers is further configured to determine the following distance based on the operating condition.

17 . The system of claim 13 , further comprising a central dispatch configured to relay communications amongst the plurality of controllers via the network communication system.

18 . The system of claim 13 , wherein the worksite includes a first road and a second road, the first road and second road intersecting at an intersection and the first truck travelling on the first road towards the intersection and the second truck travelling on the second road towards the intersection, wherein the plurality of controllers is further configured to:
determine a timeframe in which the first truck will reach the intersection based on the first speed, and communicate the timeframe amongst the plurality of mining trucks via the network communication system, and modulate the second speed based on the timeframe.

19 . The system of claim 13 , further comprising a throttle lock system associated with the second truck and wherein the plurality of controllers is further configured to receive signals from the plurality of controllers to maintain propulsion of the second truck based on the second speed.

20 . The system of claim 13 , f

Assignees

• Caterpillar Inc

Inventors

• Ruth Eric J

Classifications

• B60W2720/10

  Longitudinal speed · CPC title

• B60W10/04

  including control of propulsion units · CPC title

• B60W10/18

  including control of braking systems · CPC title

• B60W2554/801

  Lateral distance · CPC title

• B60W2554/4041

  Position · CPC title