Construction machine management system

A technology for construction machinery and management systems, applied in construction, information technology support systems, earth movers/excavators, etc., can solve the problems of battery status, battery status, management, etc.

Pending Publication Date: 2020-10-27
NIHON KENKI CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] On the other hand, when a lithium-ion battery is mounted on a hydraulic excavator, the state of the battery cannot be managed when the hydraulic excavator is not operating.
Therefore, depending on the user's usage status, it may not be possible to manage the battery status for a long time

Method used

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Examples

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Embodiment Construction

[0021] Hereinafter, a case where the construction machine management system according to the embodiment of the present invention is applied to a hydraulic excavator management system as a representative example of construction machines will be described in detail with reference to the drawings. in addition, Figure 4 Each step of the shown flowchart is marked with "S" (eg, step 1 = "S1").

[0022] Figure 1 to Figure 5 Indicates the implementation mode. one of them figure 1 A hydraulic excavator 1 as a construction machine and a management server 52 as a management device for transmitting and receiving information (data) with the hydraulic excavator 1 are shown. In the embodiment, the hydraulic excavator 1 is configured to include an engine (engine) 11 and an auxiliary generator motor (motor) 15 as an electric motor (see figure 2 ) and power storage device 19 (refer to figure 2 ) of hybrid hydraulic excavators (hybrid excavators). On the other hand, the management serv...

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PUM

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Abstract

According to the present invention, a management server (52) receives, from a hydraulic shovel (1), a maximum value and a minimum value among respective voltages (cell voltages) of a plurality of battery cells (19A, 19B) that form a power storage device (19) of the hydraulic shovel (1), and stores the same in a storage device (52A). The storage device (52A) of the management server (52) stores thedischarge characteristics of the power storage device (19). A battery state estimation calculation unit (52D) of the management server (52) adds the discharge characteristics stored in the storage device (52A) to the latest maximum value and minimum value of the cell voltages stored in the storage device (52A), and calculates an estimated maximum value and an estimated minimum value of current orfuture cell voltages. A management information construction unit (52C) outputs information based on the estimated maximum value and the estimated minimum value of the cell voltages calculated in thebattery state estimation calculation unit (52D).

Description

technical field [0001] The present invention relates to a construction machine management system for managing (controlling and monitoring) construction machines such as hydraulic excavators, hydraulic cranes, and wheel loaders at a location remote from the construction machines. Background technique [0002] For example, a hybrid hydraulic excavator (hybrid excavator) and an electric hydraulic excavator (battery excavator) operate using electric power stored (charged) in a power storage device as a power source. The power storage device includes a storage battery (secondary battery), a control unit (BCU), a relay, and the like. For example, a lithium ion battery is used as the storage battery. A secondary battery (lithium ion battery) is often used in the state of an assembled battery composed of, for example, a plurality of battery cells (lithium ion battery cells) connected. [0003] From the standpoint of ensuring stability and suppressing performance degradation, it is...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02J7/00G01R31/371H01M10/48H02J13/00
CPCH02J7/00H02J13/00H01M10/48G01R31/36G01R31/371Y02E60/10Y02T10/70H02J7/0013H02J7/0048H02J2310/46Y04S30/12Y02T90/167H01M10/482G01R31/392G01R31/382G01R19/10G01R19/30G08B21/18B60L58/12B60L58/10H02J13/00006H02J7/00032H02J2310/40B60L2200/40E02F9/2091E02F9/2228E02F9/2285E02F9/2296E02F9/26G07C5/02H01M10/425H01M2010/4271H01M2010/4278H01M2220/20
Inventor 渡边明竹内健纳谷到
Owner NIHON KENKI CO LTD
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