JPWO2015015647A1 - 作業車両 - Google Patents
作業車両 Download PDFInfo
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- JPWO2015015647A1 JPWO2015015647A1 JP2014509019A JP2014509019A JPWO2015015647A1 JP WO2015015647 A1 JPWO2015015647 A1 JP WO2015015647A1 JP 2014509019 A JP2014509019 A JP 2014509019A JP 2014509019 A JP2014509019 A JP 2014509019A JP WO2015015647 A1 JPWO2015015647 A1 JP WO2015015647A1
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- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
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- 229910052751 metal Inorganic materials 0.000 description 1
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- 238000006467 substitution reaction Methods 0.000 description 1
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- B60L53/00—Methods of charging batteries, specially adapted for electric vehicles; Charging stations or on-board charging equipment therefor; Exchange of energy storage elements in electric vehicles
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Abstract
Description
バッテリ式フォークリフト1は、車体10の前方の隅部にそれぞれ前輪11を備え、車体10の後方の隅部にそれぞれ後輪12を備える。バッテリ式フォークリフト1は、前輪11の後方に設けられた走行用の電動機(走行用電動機)50によって前輪11が駆動されることにより走行する。より具体的には、走行用電動機50の出力は、減速機能を有する動力伝達装置51を介して両方の前輪11、11に伝達されて、これらを駆動する。
図4は、本実施形態に係るバッテリ式フォークリフトの電気系統を説明するためのブロック図である。バッテリ式フォークリフト1の電気系統ESは、制御系CSと、電力供給系PSと、駆動系DSとを含む。制御系CSは、バッテリ式フォークリフト1を制御するための機器類で構成されている。制御系CSは、車載制御装置60と、通信制御装置61と、車外通信装置64と、表示パネル52とを含む。車載制御装置60は、マスターコントローラと呼ばれるものであり、例えば、コンピュータが用いられる。バッテリ式フォークリフト1が備える走行用電動機50、荷役用電動機55を制御する。具体的には、車載制御装置60は、走行用インバータ57を介して走行用電動機50を制御し、荷役用インバータ58を介して荷役用電動機55を制御する。この他にも、車載制御装置60は、表示パネル52の表示を制御したり、車外通信装置64と車外の管理施設との通信を制御したり、バッテリ30の状態を監視したりする。このように、車載制御装置60は、バッテリ式フォークリフト1全体の制御を行う。
充電装置2は、制御部70と、充電装置用電源71と、起動信号生成部72と、電力変換部73とを含む。充電装置2は、バッテリ式フォークリフト1と通信することができる。制御部70は、例えば、コンピュータであり、バッテリ式フォークリフト1の車載制御装置60からの指令に基づいてバッテリ30の充電を制御する。例えば、制御部70は、車載制御装置60から送信されたバッテリ30を充電するための指令に基づいて、バッテリ30に供給する直流電力の電流又は電圧を制御する。車載制御装置60からのバッテリ30を充電するための指令は、通信線77を介して制御部70に入力される。充電装置用電源71は、バッテリ式フォークリフト1が搭載するバッテリ30から供給される電力を変圧(本実施形態では降圧)して、制御部70に供給する。充電装置用電源71には、給電線76及び給電線76から分岐した電力線76Bから電力が供給される。制御部70は、充電装置用電源71から供給される電力によって動作する。本実施形態において、充電装置用電源71は、例えば、DC−DCコンバータである。
図5は、本実施形態に係るバッテリ式フォークリフトが備えるバッテリの説明図である。バッテリ30は、複数のバッテリセル32を備える。本実施形態において、バッテリセル32は、制御弁式の蓄電池(例えば、鉛蓄電池)である。このようなバッテリセル32は、急速充電に適している。それぞれのバッテリセル32は、端子間電圧が12Vである。本実施形態では、複数(この例では6個)のバッテリセル32を直列に接続して複数(この例では6個)のバッテリセル群32L1、32L2、32L3、32L4、32L5、32L6を形成する。そして、それぞれのバッテリセル群32L1、32L2、32L3、32L4、32L5、32L6を、例えば、銅製のバスバーBBp、BBmによって並列接続する。このように、バッテリ30は、複数のバッテリセル群32L1、32L2、32L3、32L4、32L5、32L6が並列接続された並列組電池である。
図6は、充電装置側コネクタと充電用コネクタとを示す図である。充電装置側コネクタ24は、充電装置2側の給電線76が接続される給電用の端子24Ppと、充電装置2側の通信線77が接続される通信用の端子24Psaと、信号線SLとグランド線GLとが接続される起動用の端子24Psbとを備える。給電用の端子24Ppは、電力変換部73が出力した直流電力をバッテリ30へ供給する端子である。通信用の端子24Psaは、バッテリ式フォークリフト1、より具体的には車載制御装置60と通信するための端子である。起動用の端子24Psbは、車載制御装置60を起動させるための起動信号を電源装置62の起動回路63に送信するための端子である。
図7は、バッテリを充電するときにおける車載制御装置及び充電装置等の動作の一例を示すフローチャートである。バッテリ式フォークリフト1に搭載されたバッテリ30を充電するにあたり、ステップS101において、バッテリ式フォークリフト1のオペレータ等は、充電装置2の充電装置側コネクタ24をバッテリ式フォークリフト1の充電用コネクタ23に接続する。すると、充電装置側コネクタ24の起動用の端子24Psbと充電用コネクタ23の信号用端子23Psbとが接続されて、起動信号生成部72から電源装置62の起動回路63に起動信号が送信される。ステップS102において、起動回路63が起動信号を受信すると、電源装置62は、車載制御装置60及び通信制御装置61に電力を供給する。すると、ステップS103において、車載制御装置60及び通信制御装置61が起動する。
図8は、本実施形態に係るバッテリ及びバッテリケースを示す斜視図である。図9は、本実施形態に係るバッテリ及びバッテリケースを示す平面図である。図10は、本実施形態に係るバッテリ及びバッテリケースを示す右側面図である。図11は、本実施形態に係るバッテリ及びバッテリケースを示す左側面図である。バッテリ30は、バッテリケース31内に、前述した複数のバッテリセル32が収納されている。バッテリケース31は、底部31B、底部31Bと対向する上部31T及び底部31Bと上部31Tとを接続する側部31SF、31SB、31SL、31SRを有する。バッテリケース31は、上部31Tと底部31Bと側部31SF、31SB、31SL、31SRとで囲まれた空間に、複数のバッテリセル32の少なくとも1つの側面の少なくとも一部同士を接触させて収納する。
2 充電装置
6 交流電源
10 車体
13 フォーク
23 充電用コネクタ
24 充電装置側コネクタ
30 バッテリ
31 バッテリケース
31F ファン
31B 下部
31Hi 吸気口
31SP 区画用部材
31B 底部
31R 桟
31T 上部
31SF 側部
31He 排気口
32 バッテリセル
32B 下面
32SL 側面(大側面)
32SS 側面(小側面)
32T 上面
32BT 端子
34 運転席
60 車載制御装置
61 通信制御装置
62 電源装置
63 起動回路
64 車外通信装置
66、69 コンタクタ
67 電力線
67C 充電用電線
68 通信線
70 制御部
71 充電装置用電源
72 起動信号生成部
73 電力変換部
74 センサ
76 給電線
76B 電力線
77 通信線
Claims (7)
- バッテリ及び少なくとも1個の電動機を備え、前記電動機は、前記バッテリから供給される電力によって駆動される作業車両であり、
前記作業車両の外部に設置される充電装置が備える給電用の端子が前記バッテリの充電時に接続される充電用端子と、
前記充電装置が前記作業車両と通信するための通信用の端子が前記バッテリの充電時に接続される通信用端子と、
前記作業車両を制御し、かつ前記バッテリの充電時には前記通信用端子を介して前記充電装置を制御する車載制御装置と、
を含む、作業車両。 - 前記充電用端子と前記バッテリの端子との間に設けられる開閉器を備える、請求項1に記載の作業車両。
- 前記バッテリは、充電時において、前記充電装置に備えられて前記バッテリの充電を制御する制御部が消費する電力を供給する、請求項1又は請求項2に記載の作業車両。
- 前記バッテリの充電時において、前記充電装置からの信号によって前記車載制御装置を起動させる起動部と、
前記バッテリの充電時には、前記充電装置からの信号を送信するための端子が接続される信号用端子と、
を備える、請求項1から請求項3のいずれか1項に記載の作業車両。 - 前記充電用端子と前記通信用端子と前記信号用端子とは、同一のコネクタに配置される、請求項4に記載の作業車両。
- 前記車載制御装置は、
前記起動部によって起動された後、前記開閉器を導通状態にして前記バッテリから前記充電装置へ電力を供給し、
前記通信用端子を介して前記充電装置からの起動完了の信号を受信した場合には、前記充電装置による前記バッテリの充電を開始し、
前記バッテリの蓄電量が所定量以上になった場合には、前記充電装置による前記バッテリの充電を停止する、
請求項4又は請求項5に記載の作業車両。 - 前記車載制御装置は、
前記充電装置から停止信号を受信したときには、前記開閉器を非導通状態にして前記充電装置への電力の供給を停止する、請求項6に記載の作業車両。
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KR102413075B1 (ko) | 2017-12-29 | 2022-06-24 | 두산산업차량 주식회사 | 전동 지게차 및 이의 구동 방법 |
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