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Charge management system for rechargeable forklift, and charge management method

A charging management and recharging technology, applied in secondary battery charging/discharging, charging stations, electric vehicles, etc.

Inactive Publication Date: 2012-07-18
MITSUBISHI HEAVY IND LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

exist Figure 4 In the charging cycle / charging rate shown, an example of the case where the battery car is used intermittently from 8 o'clock to 18 o'clock as shown in the operation diagram (c), and thereafter, as shown in the charging diagram (d), From 18:00 to 18:15, fast charging was performed for 15 minutes (charging current 1600A, received power 80kW), but if such fast charging is performed, the above-mentioned reinforcement of power receiving equipment and a large amount of burden will become must

Method used

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  • Charge management system for rechargeable forklift, and charge management method
  • Charge management system for rechargeable forklift, and charge management method
  • Charge management system for rechargeable forklift, and charge management method

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Embodiment Construction

[0037] refer to figure 1 as well as figure 2 An embodiment of the present invention will be described.

[0038] figure 1 It is an overall view of the charging management system for a cordless forklift according to this embodiment. Four forklifts (shown as forklift 1, forklift 2, forklift 3, and forklift 4 in the figure) are used, and each of the forklifts 1 to 4 is equipped with There are small lithium ion batteries 1a to 4a capable of rapid charging as secondary batteries.

[0039]On the other hand, a base station 10 is installed in the work area of ​​these forklifts 1 to 4 . The base station 10 is provided with an operation schedule creation unit 20 for creating an operation schedule, which is a charging schedule for the forklifts 1 to 4, and outputs a return command / departure to the forklifts 1 to 4 according to the operation schedule created by the operation schedule creation unit 20. A management unit 11 for commands and the like; a battery charger 12 for charging ...

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Abstract

A running schedule for forklifts (1-4) is configured from a plurality of operating cycles (C1-C7). Each operating cycle (C1-C7) in the running schedule is configured to have a charge programme (B1-B7) which is set to be of a shorter duration than a continuous running capability duration corresponding to the capacity of a rechargeable battery, and a run programme (A1-A7) which is implemented after charging.

Description

technical field [0001] The present invention relates to a charging management system and a charging management method of a rechargeable forklift applicable to a lithium ion battery (secondary battery) capable of rapid charging. [0002] this application claims priority to Japanese Patent Application No. 2010-40037 for which it applied to Japan on February 25, 2010, and uses the content here. Background technique [0003] In the case of a general-purpose electric forklift, it is generally equipped with a lead battery, and it takes 8 hours or more to fully charge it. [0004] Moreover, after such lead batteries are fully charged, although there are differences according to usage, most of the specifications can support continuous use for about 8 hours. In addition, the driving batteries of electric forklifts are almost all lead batteries, and the so-called fast charging is almost impossible. Even if fast charging is possible, it takes at least 3 to 4 hours to fully charge. ...

Claims

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Application Information

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IPC IPC(8): H02J7/00B60L11/18H01M10/44H02J7/10
CPCH01M2220/20Y02E60/12H01M2010/4271H01M10/0525Y02T90/128Y02T10/7005Y02T90/14B60L11/185H01M10/44B60L2200/42Y02T10/7011B66F9/24B60L11/1824H01M10/4207B60L11/1809Y02T10/7088H01M2010/4278H01M10/441B60L53/11B60L53/302Y02E60/10Y02P90/60Y02T10/70Y02T10/7072Y02T90/12
Inventor 赤羽史博妻木俊道
Owner MITSUBISHI HEAVY IND LTD
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