JP4727323B2 - Fuel cell vehicle structure - Google Patents
Fuel cell vehicle structure Download PDFInfo
- Publication number
- JP4727323B2 JP4727323B2 JP2005200636A JP2005200636A JP4727323B2 JP 4727323 B2 JP4727323 B2 JP 4727323B2 JP 2005200636 A JP2005200636 A JP 2005200636A JP 2005200636 A JP2005200636 A JP 2005200636A JP 4727323 B2 JP4727323 B2 JP 4727323B2
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- fuel cell
- cell stack
- vehicle
- center
- auxiliary machine
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- 239000000446 fuel Substances 0.000 title claims description 127
- UFHFLCQGNIYNRP-UHFFFAOYSA-N hydrogen Chemical compound data:image/svg+xml;base64,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 data:image/svg+xml;base64,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 [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 claims description 47
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Images
Classifications
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/30—Hydrogen technology
- Y02E60/50—Fuel cells
Description
他方で、燃料電池スタック及びその補機をサブフレーム上に搭載し、該サブフレームを車両のフロアパネル下に取り付けるような構成も検討されているが、このような構成においても、上述の如く水素系補機及び電気系補機のタフネス対策を軽減できることが望ましい。
そこでこの発明は、車両のフロアパネル下に取り付けたサブフレーム上の燃料電池スタック及びその補機に対する路面からの跳ね上げによる影響を抑えることができる燃料電池自動車構造を提供する。 The above-mentioned conventional technology suppresses the influence on the hydrogen sensor caused by water or mud splashed from the road surface, but not only for the hydrogen sensor but also for the hydrogen-based auxiliary equipment and electric-system auxiliary equipment in the fuel cell system. However, if it is possible to suppress the influence of the jumping from the road surface, it is preferable because the measures against toughness of these parts can be reduced and the cost can be reduced.
On the other hand, a configuration in which the fuel cell stack and its auxiliary equipment are mounted on a subframe and the subframe is attached under the floor panel of the vehicle has been studied. It is desirable to be able to reduce measures against toughness of system auxiliary equipment and electrical system auxiliary equipment.
Therefore, the present invention provides a fuel cell vehicle structure that can suppress the influence of the fuel cell stack on the subframe attached under the floor panel of the vehicle and its auxiliary equipment from the jumping from the road surface.
また、燃料電池スタック及びその補機をサブフレームに搭載した状態で車両に取り付けることで、燃料電池システムの車両への取り付け作業工数を削減できると共に、サブフレームを車体のフレーム部材として機能させて車体剛性を高めることができる。
ここで、燃料電池スタック及びその補機が車幅方向中央部のセンタートンネル内に配置されることで、該燃料電池スタック及びその補機と車体側面との間のクリアランスを容易に確保でき、特に側突対応を考慮した車体レイアウトを容易に実現することができる。 According to this configuration, it is possible to suppress the influence of water, mud, and the like splashed from the road surface with respect to the hydrogen supply auxiliary machine that is desired to be further protected.
In addition, by attaching the fuel cell stack and its auxiliary equipment to the vehicle in a state where it is mounted on the subframe, it is possible to reduce the man-hours for attaching the fuel cell system to the vehicle and to make the subframe function as a frame member of the vehicle body. Stiffness can be increased.
Here, by arranging the fuel cell stack and its auxiliary machine in the center tunnel in the center in the vehicle width direction, a clearance between the fuel cell stack and its auxiliary machine and the side surface of the vehicle body can be easily secured. It is possible to easily realize a vehicle body layout that takes into account a side collision.
本願発明によれば、路面から跳ね上げられた水や泥等の前記制御装置に対する影響を抑えることができる。
According to the present invention , it is possible to suppress the influence of water, mud, and the like splashed from the road surface on the hydrogen supply auxiliary machine, to reduce the number of installation work of the fuel cell system, to increase the rigidity of the vehicle body, The corresponding car body layout can be easily realized.
According to this invention , the influence with respect to the said control apparatus, such as water and mud splashed up from the road surface, can be suppressed.
再び図1,2に示すように、例えばリヤシート34の下方には、上下高さを抑えた長方体状をなすバッテリ12が例えば左右に一対設けられる。このバッテリ12は、燃料電池自動車1の減速時等に駆動モータ3からの回生電力を蓄電する等の用途に用いられる。また、円筒状の外観をなすガスボンベとしての水素タンク7は、その軸線を車幅方向に沿わせるようにしてリヤシート34の斜め下後方に配置される。
以下、前記レギュレータ8及びエゼクタ9等を水素供給補機Dと総称し、加湿器5及び希釈ボックス11等を空気排出補機Eと総称することがある。 The fuel cell stack 2 is disposed so that the stacking direction of the unit fuel cells is along the vehicle front-rear direction, and the vertical layout (vertical direction) is larger than the horizontal (horizontal) dimension. By doing so (see FIG. 8), the discharge of produced water during power generation is improved.
As shown in FIGS. 1 and 2 again, for example, a pair of batteries 12 having a rectangular shape with a reduced vertical height are provided below the rear seat 34, for example, on the left and right. The battery 12 is used for applications such as storing regenerative power from the drive motor 3 when the fuel cell vehicle 1 is decelerated. Further, the hydrogen tank 7 as a gas cylinder having a cylindrical appearance is disposed obliquely below and rearward of the rear seat 34 so that its axis is along the vehicle width direction.
Hereinafter, the regulator 8 and the ejector 9 may be collectively referred to as a hydrogen supply auxiliary machine D, and the humidifier 5 and the dilution box 11 may be collectively referred to as an air discharge auxiliary machine E.
図4を併せて参照して説明すると、燃料電池2の前端部には、ラジエータ21との間に渡る冷却水流出管22及び冷却水流入管23がそれぞれ接続される。冷却水流出管22には冷却水循環用のウォータポンプ24が配置され、冷却水流入管23には燃料電池2の冷間始動時にヒータ循環経路25を開閉する切り替え弁26が配置される。ヒータ循環経路25には例えば水素タンク7からの水素を燃焼させて発熱するヒータ27が配置され、燃料電池2の冷間始動時にはヒータ循環経路25を通過する冷却水が加温される。 A radiator 21 for cooling the coolant circulating through the fuel cell 2 and the like is disposed in front of the drive motor 3 and the compressor 4.
Referring to FIG. 4 together, a cooling water outflow pipe 22 and a cooling water inflow pipe 23 that are connected to the radiator 21 are connected to the front end of the fuel cell 2. A water pump 24 for circulating the cooling water is disposed in the cooling water outflow pipe 22, and a switching valve 26 for opening and closing the heater circulation path 25 is disposed in the cooling water inflow pipe 23 when the fuel cell 2 is cold-started. For example, a heater 27 that generates heat by burning hydrogen from the hydrogen tank 7 is disposed in the heater circulation path 25, and cooling water that passes through the heater circulation path 25 is heated when the fuel cell 2 is cold-started.
そして、フロアパネル35を上方に膨出させたセンターコンソール39の下側の空間内(センタートンネル60内)に、前記サブフレーム50上に搭載された燃料電池スタック2及びその補機類が配置される。 As shown in FIG. 7, a center console 39 is formed in the vehicle width direction central portion of the floor panel 35 extending from the lower end portion of the dash lower 37 to immediately before the rear seat 34 so as to bulge upward and extend in the front-rear direction. The The center console 39 has a U-shaped cross section that opens downward, and forms a center tunnel 60 in a space below the center console 39. The center tunnel 60 opens into the motor room MR when the front end portion of the center console 39 abuts against the lower end portion of the dash lower 37. Further, the rear end portion of the center tunnel 60 is opened under the rear floor 36 extending from the bottom of the rear seat 34 to the rear portion of the vehicle body.
The fuel cell stack 2 mounted on the sub-frame 50 and its accessories are arranged in the space below the center console 39 (in the center tunnel 60) with the floor panel 35 bulging upward. The
図9を併せて参照して説明すると、センターコンソール39内の前端部内には、コンタクタボックス18の上部を覆うように例えば発泡材Pが充填されており、該コンタクタボックス18及び発泡材Pをもって前記隔壁61が構成されている。 Here, on the front end side in the center tunnel 60 (in front of the fuel cell 2 and below the first inclined portion 33b), the contactor box 18 is disposed. The contactor box 18 is not mounted on, for example, the subframe 50 but is directly mounted on the vehicle body frame side immediately in front of the subframe 50.
Referring to FIG. 9 as well, the front end portion in the center console 39 is filled with, for example, a foam material P so as to cover the upper portion of the contactor box 18, and the contactor box 18 and the foam material P are held together with the contactor box 18 and the foam material P. A partition wall 61 is configured.
燃料電池2は、サブフレーム50上における左右サブセンターフレーム52間であって前後サブクロスフレーム53,54間に配置され、燃料電池2用の補機類は、左右サブセンターフレーム52間であって後サブクロスフレーム54とエンドパイプ56との間に配置される。また、ヒータ27及びDC−DCコンバータ14は、左又は右のサブサイドフレーム51及びサブセンターフレーム52間であって前後サブクロスフレーム53,54間に配置されて前後中間パイプ57に支持される。 As shown in FIG. 6, the heater 27 is disposed below the floor panel 35 on the right side of the fuel cell 2 located in the center tunnel 60 (in the center in the vehicle width direction). On the other hand, the DC-DC converter 14 is disposed below the floor panel 35 on the left side of the fuel cell 2.
The fuel cell 2 is disposed between the left and right sub-center frames 52 on the sub-frame 50 and between the front and rear sub-cross frames 53 and 54, and the auxiliary equipment for the fuel cell 2 is between the left and right sub-center frames 52. It is arranged between the rear sub-cross frame 54 and the end pipe 56. The heater 27 and the DC-DC converter 14 are arranged between the left or right sub-side frame 51 and the sub-center frame 52 and between the front and rear sub-cross frames 53 and 54 and are supported by the front and rear intermediate pipes 57.
また、燃料電池スタック2及びその補機をサブフレーム50に搭載した状態で車両に取り付けることで、燃料電池システムの車両への取り付け作業工数を削減できると共に、サブフレーム50を車体のフレーム部材として機能させて車体剛性を高めることができる。
ここで、燃料電池スタック2及びその補機が車幅方向中央部のセンタートンネル60内に配置されることで、該燃料電池スタック2及びその補機と車体側面との間のクリアランスを容易に確保でき、特に側突対応を考慮した車体レイアウトを容易に実現することができる。 According to this configuration, it is possible to suppress the influence of water, mud, and the like splashed from the road surface with respect to the hydrogen supply auxiliary machine D that is desired to be further protected.
Further, by attaching the fuel cell stack 2 and its auxiliary equipment to the vehicle in a state of being mounted on the subframe 50, it is possible to reduce the man-hours for attaching the fuel cell system to the vehicle, and to function the subframe 50 as a frame member of the vehicle body. This makes it possible to increase vehicle body rigidity.
Here, the fuel cell stack 2 and its auxiliary equipment are arranged in the center tunnel 60 at the center in the vehicle width direction, so that the clearance between the fuel cell stack 2 and its auxiliary equipment and the side surface of the vehicle body can be easily secured. In particular, it is possible to easily realize a vehicle body layout that takes into account the side collision.
2 燃料電池スタック
19 ECU(制御装置)
35 フロアパネル
39 センターコンソール
50 サブフレーム
60 センタートンネル
D 水素供給補機
E 空気排出補機
1 Fuel Cell Vehicle 2 Fuel Cell Stack 19 ECU (Control Device)
35 Floor panel 39 Center console 50 Subframe 60 Center tunnel D Hydrogen supply auxiliary machine E Air discharge auxiliary machine
Claims (2)
- 燃料電池スタック及び該燃料電池スタックのための補機をサブフレームに搭載し、該サブフレームを車両のフロアパネル下に取り付けた燃料電池自動車構造において、
前記フロアパネルを上方に膨出させて車両の前後方向に延びるセンターコンソールを設け、該センターコンソールの両下縁部には、これを支持する左右センターフレームが前後に延び、これら各センターフレームに、前記サブフレームを結合し、
前記サブフレームの下面側には、少なくとも前記センターコンソールの下方を覆うアンダーカバーが取り付けられ、
前記センターコンソール、前記両センターフレーム、前記サブフレーム、及び前記アンダーカバーにより、車両前後方向に延びてその前端部がモータルーム内に開放すると共に後端部がリヤフロア下に開放するセンタートンネルが形成され、
前記燃料電池スタックは、単位燃料電池の積層方向を車両前後方向に沿わせるように配置されており、その上下方向の寸法が左右方向の寸法よりも大きい縦置きレイアウトとされ、
この燃料電池スタックが、フロアレベルよりも上側であって車室空間内のフロントシート間に配置されると共に、
前記センタートンネル内に、前記燃料電池スタック及び該燃料電池スタックのための補機を前後に並ぶように収容し、
前記燃料電池スタックのための補機は、少なくとも前記燃料電池スタックへ水素を供給するための水素供給補機と、前記燃料電池スタックから空気を排出するための空気排出補機とを含み、前記水素供給補機を前記空気排出補機よりも上方に配置したことを特徴とする燃料電池自動車構造。 In a fuel cell automobile structure in which a fuel cell stack and an auxiliary machine for the fuel cell stack are mounted on a subframe, and the subframe is attached under a vehicle floor panel,
A center console that extends in the front-rear direction of the vehicle by bulging the floor panel upward is provided, and left and right center frames that support the center console extend in the front-rear direction on both lower edges of the center console. Combining the subframes;
An under cover that covers at least the lower part of the center console is attached to the lower surface side of the subframe,
The center console, the center frames, the sub-frame, and the under cover form a center tunnel that extends in the vehicle front-rear direction and has a front end opened in the motor room and a rear end opened below the rear floor. ,
The fuel cell stack is arranged so that the stacking direction of the unit fuel cells is along the vehicle front-rear direction, and the vertical layout is larger than the horizontal dimension,
The fuel cell stack is disposed between the front seats in the passenger compartment space above the floor level,
In the center tunnel, the fuel cell stack and auxiliary equipment for the fuel cell stack are accommodated in a line up and down,
The auxiliary device for the fuel cell stack includes at least a hydrogen supply auxiliary device for supplying hydrogen to the fuel cell stack and an air discharge auxiliary device for discharging air from the fuel cell stack, A fuel cell vehicle structure characterized in that a supply auxiliary machine is arranged above the air discharge auxiliary machine. - 前記燃料電池スタックのための補機は、さらに前記燃料電池スタックの電気出力を制御する制御装置を含み、該制御装置は、前記センターコンソールの上部後側を上方に膨出して乗員用の肘掛を支持する上部膨出部内に、前記燃料電池スタックの後端部上から前記水素供給補機上に跨るように設け、かつ前記水素供給補機よりも上方に配置したことを特徴とする請求項1に記載の燃料電池自動車構造。 The auxiliary machine for the fuel cell stack further includes a control device for controlling the electric output of the fuel cell stack, and the control device bulges upward at the upper rear side of the center console to raise an armrest for a passenger. 2. The upper bulging part to be supported is provided so as to straddle the hydrogen supply auxiliary machine from the rear end part of the fuel cell stack, and is arranged above the hydrogen supply auxiliary machine. The fuel cell automobile structure described in 1.
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