JPWO2020066208A1 - 鞍乗型電動車両 - Google Patents
鞍乗型電動車両 Download PDFInfo
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Abstract
Description
本願は、2018年9月28日に、日本に出願された特願2018−183890に基づき優先権を主張し、その内容をここに援用する。
図1は、鞍乗型電動車両の一例としてのユニットスイング式の自動二輪車1を示す。図1を参照し、自動二輪車1は、ハンドル2によって操向される前輪3と、動力源を含むパワーユニット10によって駆動される後輪4とを備える。前輪3は、左右一対のフロントフォーク6に回転可能に支持されている。以下、自動二輪車を単に「車両」ということがある。実施形態の自動二輪車1は、搭乗者(乗員)が着座可能であるシート8に着座した乗員が足を載せるステップフロア9を有するスクータ型の車両である。
図2に示すように、シート8(図1参照)の下方には、モータ30に電力を供給するバッテリ100が搭載されている。バッテリ100は、前後2つの単位バッテリ101,102(前後バッテリ101,102)で構成されている。前後バッテリ101,102は、互いに同一構成とされている。前後バッテリ101,102は、断面矩形状(例えば正方形状)をなして長手方向に延びる角柱状(直方体状)をなしている。前後バッテリ101,102は、断面形状の前後辺を車幅方向に沿わせ、かつ、左右側辺を前後方向に沿わせて配置されている。前後バッテリ101,102は、互いに平行に傾斜し、前後面間に間隔をあけて配置されている。
図3に示すように、自動二輪車1は、シート8に着座した運転者が足を載せる左右一対のステップフロア9と、左右ステップフロア9間で車両前後方向に延びるセンタートンネルCTと、センタートンネルCTおよび左右ステップフロア9の前方に連なるフロントボディFBと、センタートンネルCTおよび左右ステップフロア9の後方に連なるリアボディRBと、を備える。
図4は、実施形態に係るバッテリ収納部のバッテリ非固定状態のときの斜視図、図5は、実施形態に係るバッテリ収納部のバッテリ固定状態のときの斜視図である。図6は、図4のVI−VI線に沿う断面を示す図である。
図7に示すように、センタートンネルCTには、接地面に対して後側ほど下方に位置するように傾斜するカバー傾斜面CSが設けられている。センタートンネルCTには、コード収納部230を開閉可能な蓋部材240が設けられている。コード収納部230は、上方に開放する箱状をなしている。コード収納部230には、収納空間230sが形成されている収納空間230sには、充電コード245及び充電コード245以外の他の物品を収納可能である。例えば、コード収納部230内に充電コード245が収納されている状態で、コード収納部230内に他の物品を併せて収納することが可能である。
図20に示すように、PDU(Power Driver Unit)321およびECU(Electric Control Unit)322は、一体の制御ユニットであるPCU320を構成している。バッテリ100からの電力は、メインスイッチ260と連動するコンタクタ324を介して、モータドライバたるPDU321に供給される。バッテリ100からの電力は、PDU321にて直流から三相交流に変換された後、三相交流モータであるモータ30に供給される。ECU322は、メインスイッチ260がONとなることにより走行待機状態となる。走行待機状態では、バッテリ100に対する充電は不能とされている。また、ECU322は、メインスイッチ260がOFFとなることにより、バッテリ100の充電を可能とする充電待機状態とする。メインスイッチ260は、ONであるときにON信号をECU322に送信し、OFFであるときにOFF信号をECU322に送信する。
電気回路の駆動系の各部は、第一導体281、第二導体282、第三導体283、第四導体284、第五導体285、第六導体286、第七導体287および第八導体288を含む導体(導線)により、下記の通り電気的に接続される。
ECU322は、各BMU101a,102aからバッテリ100の状態を取得する。例えば、BMU101a,102aは、前後バッテリ101,102が充電中であるときには充電中信号をECU322に送信し、放電中であるときには放電中信号をECU322に送信する。ECU322は、アクセルセンサ329等から利用者の操作を検出する。ECU322は、収集した情報に基づいて、コンタクタ324、リレー262およびPDU321を制御する。
ECU322は、シート開閉検出部80の検出結果に基づいて、車両を制御する制御部としても機能する。シート開閉検出部80は、シート8の開閉状態を示し開閉状態信号をECU322に送信する。ECU322は、シート開閉検出部80により送信された開閉状態信号に基づいて、シート8が開状態であるか閉状態であるかを検出する。ECU322は、シート8の開状態を検出した場合、前後バッテリ101,102に設けられたFET101F,102Fに開信号を送信して、前後バッテリ101,102を充電不能状態とする。また、ECU322は、シート開閉検出部80により送信された開閉状態信号に基づいて、シート8の閉状態を検出した場合、前後バッテリ101,102に設けられたFET101F,102Fに閉信号を送信して、前後バッテリ101,102を充電可能状態とする。
また、前後バッテリ101,102とチャージャー325は、通信線(CAN)400によって接続されている。このため、前後バッテリ101,102とチャージャー325は、ECU322を介することなく、通信線400を介して直接的に信号の授受が可能とされている。
8…シート(バッテリリッド)
30…モータ
64…バッテリ収納部
80…シート開閉検出部(リッド開閉検出部)
100…バッテリ
101…前バッテリ
101F,102F…FET(半導体スイッチ)
102…後バッテリ
245…充電コード
260…メインスイッチ
325…チャージャー(充電器)
400…通信線
Claims (5)
- 走行用の電力を供給するバッテリと、
前記バッテリを着脱可能に収納するバッテリ収納部と、
前記バッテリ収納部に開閉可能に設けられたバッテリリッドと、
前記バッテリリッドの開閉状態を検出するリッド開閉検出部と、
前記バッテリ収納部に収納された状態の前記バッテリに充電する充電器と、
前記充電器に接続されるとともに、外部電源に接続可能な充電コードと、
を備え、
前記充電コードを外部電源に接続した状態で、前記リッド開閉検出部において、前記バッテリリッドの開状態が検出された場合に充電待機状態となり、前記バッテリリッドの閉状態が検出された場合に充電状態となることを特徴とする鞍乗型電動車両。 - 前記バッテリは半導体スイッチを備えており、
前記バッテリリッドの開状態が検出された場合に前記半導体スイッチを開状態として、前記バッテリを充電不能状態とする請求項1に記載の鞍乗型電動車両。 - 走行待機状態と充電待機状態を切り替えるメインスイッチを備え、
前記メインスイッチによって前記充電待機状態とされた状態で、前記充電コードを外部電源に接続することによって充電状態となる請求項1または2に記載の鞍乗型電動車両。 - 前記バッテリ収納部は搭乗者が着座可能なシートの下に配置されており、
前記バッテリリッドは前記シートである請求項1から3のうちのいずれか1項に記載の鞍乗型電動車両。 - 前記充電器と前記バッテリとは通信線により信号の授受が可能である請求項1から4のうちのいずれか1項に記載の鞍乗型電動車両。
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