Equipment performance monitoring system and method

• US 8,660,738 B2
• Filed: 12/14/2010
• Issued: 02/25/2014
• Est. Priority Date: 12/14/2010
• Status: Active Grant

• Current Assignee: Caterpillar Incorporated
• Original Assignee: Caterpillar Incorporated
• Inventors: Faivre, Joseph L., Bomer, Bradley K., Ramkumar, Chandrasekar, Krone, John J.
• Primary Examiner(s): Mawari, Redhwan K
• Application Number:
  US12/967,649
• Publication Number:
  US 20120158279A1
• Time in Patent Office: 1,169 Days
• Field of Search: 701/110, 701/124
• US Class Current: 701/29.1
• CPC Class Codes: E02F 9/26 Indicating devices E02F5/145 takes precedence

Abstract

Methods and systems are disclosed for evaluating performances of a piece of equipment and equipment operator. One disclosed method includes sensing a plurality of operating parameters of the equipment. The method then includes resolving a plurality of segments the equipment is sequentially performing from the sensed operating parameters to provide a sequence of resolved segments. The method then includes resolving what application the equipment is performing based upon the sequence of resolved segments to provide at least one resolved application. The method then includes applying at least one metric to the resolved application to provide at least one applied application metric. Then, the method includes evaluating the performance of the equipment and operator using the applied application metric. Various systems for installation on existing work equipments or new work equipments such as loaders and excavators are also disclosed.

Claims

1. A system for evaluating performances of a machine and an operator of the machine, the system, comprising:

a controller, the controller linked to a plurality of sensors for sensing a plurality of operating parameters indicative of an operation of the machine and operator;

the controller having a memory programmed with an algorithm for resolving a plurality of segments the machine is sequentially performing from the sensed operating parameters to provide a sequence of resolved segments, each segment comprising a specific part of an application of the machine and operator;

the memory of the controller also being programmed with an algorithm for resolving what application the machine is performing based on the sequence of resolved segments to provide at least one resolved application, the application comprising a type of operation performed by the machine and operator;

the memory of the controller also being programmed to apply at least one metric to the resolved application to provide at least one applied application metric for evaluating the performance of the machine and operator using the applied application metric, the at least one metric measuring performance of the resolved application.

2. The system of claim 1 wherein the at least one operating parameter is selected from the group consisting of engine speed, hydraulic cylinder pressure(s), command lever position, cylinder extension(s), linkage angle(s), machine inclination, machine acceleration, GPS coordinates, transmission gear, transmission output speed, transmission input speed, implement pump discharge pressure, fuel consumption rate and payload weight.

3. The system of claim 1 wherein each segment is selected from the group consisting of dig, travel loaded, dump, travel empty, swing loaded, swing empty, scrape, scrape dump, blade load, carry material, stationary weigh, spread material, return, machine idle, grade, general travel, stationary loaded high idle, stationary loaded low idle, stationary empty high idle and stationary empty low idle.

4. The system of claim 1 wherein each application is selected from the group consisting of idle time, roading, loading, pile cleanup, load and carry, road maintenance, excavate, trenching, stockpiling and slot dozing.

5. The system of claim 1 further including applying at least one segment metric to the resolved segments to provide at least one applied segment metric.

6. The system of claim 5 wherein the at least one segment metric is selected from the group consisting of duration, fuel consumption, distance, payload, GPS coordinates, transmission gear, operating efficiency, average engine speed, average engine coolant temperature, average hydraulic circuit pressure, hydraulic pump discharge pressure, hydraulic oil temperatures and energy consumption.

7. The system of claim 1 wherein the at least one application metric is selected from the group consisting of duration, fuel consumption, distance, payload, GPS coordinates, transmission gear, operating efficiency, average engine speed, average engine coolant temperature, average hydraulic circuit pressure, hydraulic pump pressure, hydraulic oil temperatures and energy consumption.

8. The system of claim 7 further including a display for displaying the at least one applied segment metric on a visual display that can be seen by an operator of the machine.

9. The system of claim 6 further including the display for displaying the at least one applied application metric on a visual display that can be seen by an operator of the machine.

10. A method of evaluating performances of a machine and an operator of the machine, the method comprising:

sensing a plurality of operating parameters of the machine with a plurality of sensors, the operating parameters indicative of an operation of the machine and operator;

resolving a plurality of segments the machine and operator are sequentially performing from the sensed operating parameters to provide a sequence of resolved segments, each segment comprising a specific part of an application of the machine and operator;

applying at least one metric to at least one segment of the sequence of resolved segments to provide at least one applied segment metric;

resolving what application the machine is performing based on the sequence of resolved segments to provide at least one resolved application, the application comprising a type of operation performed by the machine and operator;

applying at least one metric to the resolved application to provide at least one applied application metric, the at least one metric measuring performance of the resolved application;

evaluating the performance of the machine and operator using at least one of the applied segment metric and the applied application metric; and

altering at least one of the piece of equipment, operation of the piece of equipment and the behavior of the operator based on at least one of the applied application metric and applied segment metric.

11. The method of claim 10 wherein the at least one operating parameter is selected from the group consisting of engine speed, hydraulic cylinder pressure(s), command lever position, cylinder extension(s), linkage angle(s), machine inclination, machine acceleration, GPS coordinates, transmission gear, transmission output speed, transmission input speed, implement pump discharge pressure, fuel consumption rate and payload weight.

12. The method of claim 11 wherein each segment is selected from the group consisting of dig, travel loaded, dump, travel empty, swing loaded, swing empty, scrape, scrape dump, blade load, carry material, stationary weigh, spread material, return, machine idle, grade, general travel, stationary loaded high idle, stationary loaded low idle, stationary empty high idle and stationary empty low idle.

13. The method of claim 10 wherein each application is selected from the group consisting of idle time, roading, loading, pile cleanup, load and carry, road maintenance, excavate, trenching, stockpiling and slot dozing.

14. The method of claim 10 wherein the at least one segment metric is selected from the group consisting of duration, fuel consumption, distance, payload, GPS coordinates, transmission gear, operating efficiency, average engine speed, average engine coolant temperature, average hydraulic circuit pressure, hydraulic pump discharge pressure, hydraulic oil temperatures and energy consumption.

15. The method of claim 13 wherein the at least one application metric is selected from the group consisting of duration, fuel consumption, distance, payload, GPS coordinates, transmission gear, operating efficiency, average engine speed, average engine coolant temperature, average hydraulic pressure of lift cylinder, average hydraulic pressure of tilt cylinder, hydraulic pump pressure, hydraulic circuit pressure, hydraulic oil temperatures and energy consumption.

16. The method of claim 13 further including displaying the at least one applied segment metric and at least one applied application metric on a visual display that can be seen by an operator of the machine.

17. The method of claim 13 further including calculating the number of applications performed in a trip.

18. The method of claim 17 further including applying at least one metric to the calculated number of applications in the trip to provide at least one applied trip metric, the at least one applied trip metric being selected from the group consisting of production mass per unit time, fuel consumption in unit volume of fuel per unit time, efficiency in mass of material moved per unit volume of fuel, average time per application, average time per task, total number of applications per trip, total number of tasks per trip, total payload per trip, total fuel consumed per trip and total time per trip.

19. The method of claim 18 further including displaying the at least one applied trip metric on a visual display that can be seen by an operator of the machine.

20. A system for evaluating performances of a machine and an operator of the machine, the machine including an engine, a transmission, a work implement, a lift cylinder and a tilt cylinder connected to the work implement and an implement pump, the system comprising:

a plurality of sensors for sensing a plurality of operating parameters, the plurality of sensors linked to the at least one control module, the operating parameters indicative of an operation of the machine and operator;

the at least one control module having a memory programmed to measure fuel consumption rate, payload weight, transmission gear, transmission output speed, cylinder extension, linkage angle(s), lever commands, and hydraulic pump discharge pressure;

(these are examples, other parameters could be used)

the memory of the at least one control module also being programmed to resolve a plurality of segments the machine and operator are sequentially performing from the sensed operating parameters to provide a sequence of resolved segments, each segment comprising a specific part of an application of the machine and operator;

the memory of the at least one control module also being programmed to apply at least one metric to the sequence of resolved segments to provide at least one applied segment metric;

the memory of the at least one control module also being programmed to resolve what application the machine is performing based on the sequence of resolved segments to provide at least one resolved application, the application comprising a type of operation performed by the machine and operator;

the memory of the at least one control module also being programmed to apply at least one metric to the resolved application to provide at least one applied application metric, the at least one metric measuring performance of the resolved application;

a display linked to the at least one control module for displaying the at least one applied segment metric and the at least one applied application metric.