Tire abnormality management system and tire abnormality management method

• US 10,245,905 B2
• Filed: 09/20/2013
• Issued: 04/02/2019
• Est. Priority Date: 09/20/2013
• Status: Active Grant

• Current Assignee: Komatsu Ltd.
• Original Assignee: Komatsu Ltd.
• Inventors: Sudou, Tsugio
• Primary Examiner(s): Troost, Aaron L
• Assistant Examiner(s): Schneider, Paula L
• Application Number:
  US15/021,765
• Publication Number:
  US 20160229234A1
• Time in Patent Office: 2,020 Days
• Field of Search: 701 291
• CPC Class Codes: B60C 23/0474 Measurement control, e.g. setting measurement rate or calibrating of sensors; Further processing of measured values, e.g. filtering, compensating or slope monitoring
• CPC Class Codes: B60C 23/0479 Communicating with external units being not part of the vehicle, e.g. tools for diagnostic, mobile phones, electronic keys or service stations
• CPC Class Codes: B60C 23/0486 comprising additional sensors in the wheel or tyre mounted monitoring device, e.g. movement sensors, microphones or earth magnetic field sensors
• CPC Class Codes: B60C 23/20 Devices for measuring or signalling tyre temperature only
• CPC Class Codes: G07C 5/008 communicating information to a remotely located station transmission systems for measured values G08C

Abstract

A tire abnormality management system assigns work to each of a plurality of vehicles and manages an abnormal state of a tire mounted on each of the vehicles that perform the assigned work. The tire abnormality management system includes: a tire sensor configured to detect a tire pressure and/or a tire temperature of each of the vehicles; a grouping processing unit configured to group vehicles, in which a tire load of the work assigned to each of the vehicles is within a predetermined range, into a vehicle group; and a tire abnormal vehicle identifying unit configured to identify, among the grouped vehicles, a vehicle with an abnormal tire based on the tire pressure or the tire temperature detected by the tire sensor.

Claims

1. A tire abnormality management system that assigns work to each of a plurality of vehicles and manages an abnormal state of a tire mounted on each of the vehicles that perform the assigned work, the tire abnormality management system comprising:

a work assignment processing unit configured to create work assignments for the plurality of vehicles;

an operation instruction control unit outputs to each of the plurality of vehicles an instruction which causes the vehicle to execute a work assignment created by the work assignment processing unit;

a tire sensor configured to detect a tire pressure and/or a tire temperature of each of the vehicles;

a grouping processing unit configured to perform grouping vehicles to allocate the vehicles into one or more groups, so that a tire load of the work assigned to each of the vehicles is within a predetermined range in each of the groups; and

a tire abnormal vehicle identifying unit configured to identify, in each of the groups, a vehicle with an abnormal tire based on the tire pressure or the tire temperature detected by the tire sensor,

wherein the vehicles are allocated into the one or more groups before the tire abnormal vehicle identifying unit identifies the vehicle with the abnormal tire.

2. The tire abnormality management system according to claim 1, wherein the tire abnormal vehicle identifying unit, among the grouped vehicles, determines a statistic based on the tire pressure or the tire temperature detected by the tire sensor, and when there is a vehicle with the statistic exceeding a reference range, the tire abnormal vehicle identifying unit identifies such vehicle as a vehicle with an abnormal tire.

3. The tire abnormality management system according to claim 1, comprising an actual tire load calculation unit configured to calculate an actual tire load which is a tire load of the vehicle in actual operation based on loaded amount information and vehicle speed information notified from each of the vehicles connected wirelessly,

wherein the grouping processing unit groups vehicles, in which an actual tire load of work assigned to each of the vehicles is within a predetermined range, into a vehicle group.

4. The tire abnormality management system according to claim 1, comprising a predicted tire load calculation configured to calculate a predicted tire load of work in a planning stage assigned to each of the vehicles,

wherein the grouping processing unit groups vehicles, in which a predicted tire load of work assigned to each of the vehicles is within a predetermined range, into a vehicle group.

5. The tire abnormality management system according to claim 1, wherein information on the vehicle identified by the tire abnormal vehicle identifying unit is output externally.

6. The tire abnormality management system according to claim 1, wherein the tire load is a TKPH.

7. A tire abnormality management method for assigning work to each of a plurality of vehicles and managing an abnormal state of a tire mounted on each of the vehicles that perform the assigned work, the tire abnormality management method comprising:

a creation step of creating work assignments for the plurality of vehicles;

a control step of outputting to each of the plurality of vehicles an instruction which causes the vehicle to execute a work assignment created by the creation step;

a detection step of detecting a tire pressure and/or a tire temperature of each of the vehicles;

a grouping processing step of performing grouping vehicles, to allocate the vehicles into one or more groups, so that a tire load of the work assigned to each of the vehicles is within a predetermined range in each of the groups; and

a tire abnormal vehicle identifying step of identifying, in each of the groups, a vehicle with an abnormal tire based on the tire pressure or the tire temperature detected by the tire sensor,

wherein the vehicles are allocated into the one or more groups before the tire abnormal vehicle identifying step identifies the vehicle with the abnormal tire.

8. The tire abnormality management method according to claim 7, wherein the tire abnormal vehicle identifying step, among the grouped vehicles, determines a statistic based on the tire pressure or the tire temperature detected by the detection step, and when there is a vehicle with the statistic exceeding a reference range, the tire abnormal vehicle identifying step identifies such vehicle as a vehicle with an abnormal tire.

9. The tire abnormality management method according to claim 7, comprising an actual tire load calculation step of calculating an actual tire load which is a tire load of the vehicle in actual operation based on loaded amount information and vehicle speed information notified from each of the vehicles connected wirelessly,

wherein the grouping processing step groups vehicles, in which an actual tire load of work assigned to each of the vehicles is within a predetermined range, into a vehicle group.

10. The tire abnormality management method according to claim 7, comprising a predicted tire load calculation step of calculating a predicted tire load of work in a planning stage assigned to each of the vehicles,

wherein the grouping processing step groups vehicles, in which a predicted tire load of work assigned to each of the vehicles is within a predetermined range, into a vehicle group.

11. The tire abnormality management method according to claim 7, wherein information on the vehicle identified by the tire abnormal vehicle identifying step is output externally.

12. The tire abnormality management method according to claim 7, wherein the tire load is a TKPH.

13. A tire abnormality management system that assigns work to each of a plurality of vehicles and manages an abnormal state of a tire mounted on each of the vehicles that perform the assigned work, the tire abnormality management system comprising:

a tire sensor configured to detect a tire pressure and/or a tire temperature of each of the vehicles;

a memory; and

a processor, which is in communication with the memory, configured;

to create work assignments for the plurality of vehicles,

to output to each of the plurality of vehicles an instruction which causes the vehicle to execute a work assignment created by the processor,

to perform grouping vehicles to allocate the vehicles into one or more groups, so that a tire load of the work assigned to each of the vehicles is within a predetermined range in each of the groups, and

to identify, in each of the groups, a vehicle with an abnormal tire based on the tire pressure or the tire temperature detected by the tire sensor,

wherein the vehicles are allocated into the one or more groups before the processor identifies the vehicle with the abnormal tire.

14. The tire abnormality management system according to claim 13, wherein the processor, among the grouped vehicles, determines a statistic based on the tire pressure or the tire temperature detected by the tire sensor, and when there is a vehicle with the statistic exceeding a reference range, the processor identifies such vehicle as a vehicle with an abnormal tire.

15. The tire abnormality management system according to claim 13, wherein the processor is further configured to calculate an actual tire load which is a tire load of the vehicle in actual operation based on loaded amount information and vehicle speed information notified from each of the vehicles connected wirelessly,

wherein the processor groups vehicles, in which an actual tire load of work assigned to each of the vehicles is within a predetermined range, into a vehicle group.

16. The tire abnormality management system according to claim 13, wherein the processor is further configured to calculate a predicted tire load of work in a planning stage assigned to each of the vehicles,

wherein the processor groups vehicles, in which a predicted tire load of work assigned to each of the vehicles is within a predetermined range, into a vehicle group.

17. The tire abnormality management system according to claim 13, wherein information on the vehicle identified by the processor is output externally.

18. The tire abnormality management system according to claim 13, wherein the tire load is a TKPH.