Industrial vehicle, system for managing state of amount of electrolyte of industrial vehicle, and electric forklift
IPC분류정보
국가/구분
United States(US) Patent
등록
국제특허분류(IPC7판)
B60L-011/18
B66F-009/24
B60L-001/00
B60L-003/00
H01M-010/48
B66F-009/075
출원번호
US-0127688
(2013-02-20)
등록번호
US-9481260
(2016-11-01)
국제출원번호
PCT/JP2013/054237
(2013-02-20)
국제공개번호
WO2014/128870
(2014-08-28)
발명자
/ 주소
Hua, Feng
출원인 / 주소
Komatsu Ltd.
대리인 / 주소
Locke Lord LLP
인용정보
피인용 횟수 :
0인용 특허 :
1
초록▼
An industrial vehicle includes a battery that includes battery cells including a battery liquid and connected in series, an battery liquid shortage detection unit detecting a shortage of the battery liquid by detecting a voltage value between the battery cells, an battery liquid-shortage time calcul
An industrial vehicle includes a battery that includes battery cells including a battery liquid and connected in series, an battery liquid shortage detection unit detecting a shortage of the battery liquid by detecting a voltage value between the battery cells, an battery liquid-shortage time calculation unit calculating a battery liquid-shortage time, which is a cumulative time of the shortage of the electrolyte detected by the battery liquid shortage detection unit, a memory storing the battery liquid-shortage time calculated by the battery liquid-shortage time calculation unit, and a communication controller attaching time information to the battery liquid-shortage time stored in the memory and outputting the battery liquid-shortage time with the time information to a management server, at a predetermined timing.
대표청구항▼
1. An industrial vehicle comprising: a storage battery that includes a plurality of battery cells including electrolyte and electrode plates, the battery cells being connected in series, and a detecting point, disposed between the electrode plates of adjacent battery cells, at which a voltage value
1. An industrial vehicle comprising: a storage battery that includes a plurality of battery cells including electrolyte and electrode plates, the battery cells being connected in series, and a detecting point, disposed between the electrode plates of adjacent battery cells, at which a voltage value for detecting a shortage of the electrolyte is detected;an electrolyte shortage detection unit that detects a shortage of the electrolyte in at least one of the battery cells by detecting a voltage value at the detecting point;an electrolyte-shortage time calculation unit that calculates an electrolyte-shortage time, which is a cumulative time of the shortage of the electrolyte detected by the electrolyte shortage detection unit when the shortage of the electrolyte continues;a memory unit that stores the electrolyte-shortage time calculated by the electrolyte-shortage time calculation unit;a time information generating unit that generates time information; and an output processing unit that performs output processing for attaching the time information to the electrolyte-shortage time stored in the memory unit and outputting the electrolyte-shortage time with the time information to an output unit, at a predetermined timing. 2. The industrial vehicle according to claim 1, wherein the electrolyte shortage detection unit stores a final electrolyte shortage time, which is a time when the shortage of the electrolyte is detected, in the memory unit and then resets the electrolyte-shortage time stored in the memory unit when the shortage of the electrolyte is not detected by the electrolyte shortage detection unit and a time elapsed from the final electrolyte shortage time exceeds a predetermined time. 3. The industrial vehicle according to claim 1, wherein the electrolyte shortage detection unit includes a plurality of detecting points, disposed between adjacent battery cells, at each of which a voltage value for detecting a shortage of the electrolyte is detected, and detects the shortage of the electrolyte by detecting a plurality of voltage values between the plurality of battery cells. 4. The industrial vehicle according to claim 1, wherein the output processing unit performs output processing for attaching the time information to a difference time of the cumulative electrolyte-shortage time and outputting the difference time with the time information to the output unit, at a predetermined timing. 5. The industrial vehicle according to claim 1, wherein the predetermined timing includes a regular time and an irregular time. 6. The industrial vehicle according to claim 1, further comprising: a position detector that generates position information indicating a position of the industrial vehicle,wherein the output processing unit performs output processing for outputting the position information and the electrolyte-shortage time to the output unit, at the predetermined timing. 7. A system for managing a state of an amount of electrolyte of an industrial vehicle, the system comprising: an industrial vehicle including: a storage battery that includes a plurality of battery cells including electrolyte and electrode plates, the battery cells being connected in series, and a detecting point, disposed between the electrode plates of adjacent battery cells, at which a voltage value for detecting a shortage of the electrolyte is detected;an electrolyte shortage detection unit that detects a shortage of the electrolyte in at least one of the battery cells by detecting a voltage value at the detecting point;an electrolyte-shortage time calculation unit that calculates an electrolyte-shortage time, which is a cumulative time of the shortage of the electrolyte detected by the electrolyte shortage detection unit when the shortage of the electrolyte continues;a memory unit that stores the electrolyte-shortage time calculated by the electrolyte-shortage time calculation unit;a time information generating unit that generates time information; andan output processing unit that performs output processing for attaching the time information to the electrolyte-shortage time stored in the memory unit and outputting the electrolyte-shortage time with the time information to an output unit, at a predetermined timing; anda management server that communicates with the industrial vehicle,wherein the output processing unit attaches the time information to the electrolyte-shortage time stored in the memory unit and outputs the electrolyte-shortage time with the time information to the management server by radio communication, at a predetermined timing. 8. The system according to claim 7, wherein the management server includes a warning unit that sets warning levels depending on length of the electrolyte-shortage time and outputs warning according to the warning levels. 9. An electric forklift comprising: a storage battery that includes a plurality of battery cells including electrolyte and electrode plates, the battery cells being connected in series, and a detecting point, disposed between the electrode plates of adjacent battery cells, at which a voltage value for detecting a shortage of the electrolyte is detected;an electrolyte shortage detection unit that detects a shortage of the electrolyte in at least one of the battery cells by detecting a voltage value at the detecting point;an electrolyte-shortage time calculation unit that calculates an electrolyte-shortage time, which is a cumulative time of the shortage of the electrolyte detected by the electrolyte shortage detection unit when the shortage of the electrolyte continues;a memory unit that stores the electrolyte-shortage time calculated by the electrolyte-shortage time calculation unit;a time information generating unit that generates time information; andan output processing unit that performs output processing for attaching the time information to the electrolyte-shortage time stored in the memory unit and outputting the electrolyte-shortage time with the time information to an output unit, at a predetermined timing,wherein the electrolyte shortage detection unit detects the shortage of the electrolyte by detecting a plurality of voltage values between the plurality of battery cells, andthe output unit transmits information, which is obtained by attaching the time information to the electrolyte-shortage time stored in the memory unit, by radio communication. 10. An industrial vehicle comprising: a storage battery that includes a plurality of battery cells including electrolyte and electrode plates, the battery cells being connected in series, and a detecting point, disposed between the electrode plates of adjacent battery cells, at which a voltage value for detecting a shortage of the electrolyte is detected;an electrolyte shortage detection unit that detects a shortage of the electrolyte by detecting a voltage value between the plurality of battery cells;an electrolyte-shortage time calculation unit that calculates an electrolyte-shortage time, which is a cumulative time of the shortage of the electrolyte detected by the electrolyte shortage detection unit when the shortage of the electrolyte continues;a memory unit that stores the electrolyte-shortage time calculated by the electrolyte-shortage time calculation unit;a time information generating unit that generates time information; andan output processing unit that performs output processing for attaching the time information to the electrolyte-shortage time stored in the memory unit and outputting the electrolyte-shortage time with the time information to an output unit, at a predetermined timing,wherein the electrolyte shortage detection unit stores a final electrolyte shortage time, which is a time when the shortage of the electrolyte is detected, in the memory unit and then resets the electrolyte-shortage time stored in the memory unit when the shortage of the electrolyte is not detected by the electrolyte shortage detection unit and a time elapsed from the final electrolyte shortage time exceeds a predetermined time. 11. The industrial vehicle according to claim 10, wherein the electrolyte shortage detection unit detects the shortage of the electrolyte by detecting a plurality of voltage values between the plurality of battery cells. 12. The industrial vehicle according to claim 10, wherein the output processing unit performs output processing for attaching the time information to a difference time of the cumulative electrolyte-shortage time and outputting the difference time with the time information to the output unit, at a predetermined timing. 13. The industrial vehicle according to claim 10, wherein the predetermined timing includes a regular time and an irregular time. 14. The industrial vehicle according to claim 10, further comprising: a position detector that generates position information indicating a position of the industrial vehicle,wherein the output processing unit performs output processing for outputting the position information and the electrolyte-shortage time to the output unit, at the predetermined timing. 15. A system for managing a state of an amount of electrolyte of an industrial vehicle, the system comprising: an industrial vehicle including: a storage battery that includes a plurality of battery cells including electrolyte and electrode plates, the battery cells being connected in series, and a detecting point, disposed between the electrode plates of adjacent battery cells, at which a voltage value for detecting a shortage of the electrolyte is detected;an electrolyte shortage detection unit that detects a shortage of the electrolyte by detecting a voltage value between the plurality of battery cells;an electrolyte-shortage time calculation unit that calculates an electrolyte-shortage time, which is a cumulative time of the shortage of the electrolyte detected by the electrolyte shortage detection unit when the shortage of the electrolyte continues;a memory unit that stores the electrolyte-shortage time calculated by the electrolyte-shortage time calculation unit;a time information generating unit that generates time information; andan output processing unit that performs output processing for attaching the time information to the electrolyte-shortage time stored in the memory unit and outputting the electrolyte-shortage time with the time information to an output unit, at a predetermined timing; anda management server that communicates with the industrial vehicle,wherein the electrolyte shortage detection unit stores a final electrolyte shortage time, which is a time when the shortage of the electrolyte is detected, in the memory unit and then resets the electrolyte-shortage time stored in the memory unit when the shortage of the electrolyte is not detected by the electrolyte shortage detection unit and a time elapsed from the final electrolyte shortage time exceeds a predetermined time, andwherein the output processing unit attaches the time information to the electrolyte-shortage time stored in the memory unit and outputs the electrolyte-shortage time with the time information to the management server by radio communication, at a predetermined timing. 16. The system according to claim 15, wherein the management server includes a warning unit that sets warning levels depending on length of the electrolyte-shortage time and outputs warning according to the warning levels. 17. An electric forklift comprising: a storage battery that includes a plurality of battery cells including electrolyte and connected in series;an electrolyte shortage detection unit that detects a shortage of the electrolyte by detecting a voltage value between the plurality of battery cells;an electrolyte-shortage time calculation unit that calculates an electrolyte-shortage time, which is a cumulative time of the shortage of the electrolyte detected by the electrolyte shortage detection unit;a memory unit that stores the electrolyte-shortage time calculated by the electrolyte-shortage time calculation unit;a time information generating unit that generates time information; andan output processing unit that performs output processing for attaching the time information to the electrolyte-shortage time stored in the memory unit and outputting the electrolyte-shortage time with the time information to an output unit, at a predetermined timing,wherein the electrolyte shortage detection unit detects the shortage of the electrolyte by detecting a plurality of voltage values between the plurality of battery cells,the output unit transmits information, which is obtained by attaching the time information to the electrolyte-shortage time stored in the memory unit, by radio communication, andthe electrolyte shortage detection unit stores a final electrolyte shortage time, which is a time when the shortage of the electrolyte is detected, in the memory unit and then resets the electrolyte-shortage time stored in the memory unit when the shortage of the electrolyte is not detected by the electrolyte shortage detection unit and a time elapsed from the final electrolyte shortage time exceeds a predetermined time.
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