WO2019230293A1 - Electric vehicle - Google Patents

Electric vehicle Download PDF

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Publication number
WO2019230293A1
WO2019230293A1 PCT/JP2019/017838 JP2019017838W WO2019230293A1 WO 2019230293 A1 WO2019230293 A1 WO 2019230293A1 JP 2019017838 W JP2019017838 W JP 2019017838W WO 2019230293 A1 WO2019230293 A1 WO 2019230293A1
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WIPO (PCT)
Prior art keywords
battery packs
battery
output port
vehicle
electric vehicle
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PCT/JP2019/017838
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French (fr)
Japanese (ja)
Inventor
ビクラム メノン
サイモン オバフォッファ
マーカス ウール
ミシェル レイター
ローランド マカハマー
Original Assignee
ダイムラー・アクチェンゲゼルシャフト
エーヴィエル・リスト・ゲーエムベーハー
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Publication of WO2019230293A1 publication Critical patent/WO2019230293A1/en

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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
    • B60K1/00—Arrangement or mounting of electrical propulsion units
    • B60K1/04—Arrangement or mounting of electrical propulsion units of the electric storage means for propulsion
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
    • B60L1/00—Supplying electric power to auxiliary equipment of vehicles
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
    • B60L50/00—Electric propulsion with power supplied within the vehicle
    • B60L50/40—Electric propulsion with power supplied within the vehicle using propulsion power supplied by capacitors
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
    • B60L50/00—Electric propulsion with power supplied within the vehicle
    • B60L50/50—Electric propulsion with power supplied within the vehicle using propulsion power supplied by batteries or fuel cells
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
    • B60L50/00—Electric propulsion with power supplied within the vehicle
    • B60L50/50—Electric propulsion with power supplied within the vehicle using propulsion power supplied by batteries or fuel cells
    • B60L50/60—Electric propulsion with power supplied within the vehicle using propulsion power supplied by batteries or fuel cells using power supplied by batteries
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
    • 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
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
    • B60L55/00—Arrangements for supplying energy stored within a vehicle to a power network, i.e. vehicle-to-grid [V2G] arrangements
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
    • B60L58/00—Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles
    • 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
    • Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T10/00—Road transport of goods or passengers
    • Y02T10/60—Other road transportation technologies with climate change mitigation effect
    • Y02T10/70—Energy storage systems for electromobility, e.g. batteries
    • 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
    • Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T10/00—Road transport of goods or passengers
    • Y02T10/60—Other road transportation technologies with climate change mitigation effect
    • Y02T10/7072—Electromobility specific charging systems or methods for batteries, ultracapacitors, supercapacitors or double-layer capacitors
    • 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
    • Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T10/00—Road transport of goods or passengers
    • Y02T10/60—Other road transportation technologies with climate change mitigation effect
    • Y02T10/72—Electric energy management in electromobility
    • 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
    • Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T90/00—Enabling technologies or technologies with a potential or indirect contribution to GHG emissions mitigation
    • Y02T90/10—Technologies relating to charging of electric vehicles
    • Y02T90/14—Plug-in electric vehicles

Definitions

  • the present invention relates to an electric vehicle using a motor as a drive source.
  • Patent Document 1 In recent years, as disclosed in Patent Document 1 below, from the viewpoint of reducing the environmental load, electric vehicles are also being considered for commercial vehicles such as trucks. However, since the commercial vehicle has a large number of vehicle specification variations according to the user's request as compared with the passenger vehicle, there are various optimum battery capacities for the selected electric commercial vehicle specifications depending on conditions. .
  • the battery pack for each capacity will be designed, developed, and produced. This may lead to a significant cost increase.
  • the present invention has been made in view of such a problem, and an object of the present invention is to provide an electric vehicle capable of meeting the demand for battery capacity optimization with respect to vehicle specifications while suppressing cost. is there.
  • the present invention has been made to solve at least a part of the above-described problems, and can be realized as the following aspects.
  • An electric vehicle is provided on a rear axle of the vehicle, and transmits a driving force of a motor to a rear wheel of the vehicle to drive the vehicle, a vehicle front side from the drive unit, and And a plurality of battery packs arranged between the side rails of the ladder frame constituting the vehicle.
  • the plurality of battery packs are the same as each other, and each has a first output port at the end on the drive unit side and a second output port at the end opposite to the end on the drive unit side. Have.
  • the first output port of each of the plurality of battery packs is electrically connected to an inverter connected to the second output port of another battery pack or the motor of the drive unit.
  • the second output port of each of the plurality of battery packs distributes power to the first output port of another battery pack or a plurality of electric auxiliary machines that use the power stored in each of the plurality of battery packs. It is electrically connected to the power distribution unit.
  • the total battery capacity of the vehicle is a value obtained by totaling the battery capacities of the plurality of battery packs.
  • it is not necessary to design, develop, and produce battery packs with various battery capacities for each electric vehicle with various specifications, and increase or decrease the number of battery packs designed, developed, and produced according to the same standard. Therefore, it can respond to vehicles of various specifications.
  • the electric vehicle which concerns on this aspect can respond to the request
  • FIG. 1 is a diagram showing an electric vehicle 1 according to the present embodiment.
  • FIG. 1 mainly shows wheels (rear wheels 5L and 5R) and a ladder frame 6 constituting the electric vehicle 1 according to the present embodiment, and a power system mounted on the ladder frame 6.
  • An electric vehicle 1 shown in FIG. 1 is a vehicle driven by using a motor 21 as a drive source and transmitting a driving force generated by the motor 21 to wheels.
  • the electric vehicle 1 according to the present embodiment is a commercial vehicle such as a truck.
  • the electric vehicle 1 includes, for example, a drive unit 2 including the motor 21, an inverter 3, a power distribution unit (PDU) 4, and a plurality of battery packs B 1 to Bn (n is an integer).
  • the drive unit 2 is provided on the rear axle of the electric vehicle 1 and drives the electric vehicle 1 by transmitting the driving force generated by the motor 21 to the rear wheels 5L and 5R of the electric vehicle 1.
  • the drive unit 2 includes at least a speed change mechanism and a differential mechanism.
  • the inverter 3 supplies electric power stored in the plurality of battery packs B1 to Bn to the motor 21 during normal running.
  • the inverter 3 accumulates the electric power generated by the motor 21 in the plurality of battery packs B1 to Bn when traveling on a traveling route such as a downhill road (during regenerative traveling).
  • the power distribution unit 4 distributes power to a plurality of electric auxiliary machines that use power stored in the plurality of battery packs B1 to Bn.
  • the power distribution unit 4 distributes the electric power stored in the plurality of battery packs B1 to Bn to at least a compressor, an indoor heater, and PTO (Power Take-Off).
  • the plurality of battery packs B1 to Bn supply power to each component included in the power system mounted on the electric vehicle 1.
  • Each of the plurality of battery packs B1 to Bn includes a plurality of battery modules (not shown). That is, the battery capacity of each of the plurality of battery packs B1 to Bn is a total value of the battery capacity of each of the plurality of battery modules included in each of the plurality of battery packs B1 to Bn.
  • the plurality of battery packs B1 to Bn are the same.
  • the plurality of battery packs B1 to Bn in the present embodiment are designed, developed, and produced according to the same standard, and at least have the same battery capacity and shape.
  • the plurality of battery packs B1 to Bn are arranged in front of the drive unit 2 and between the side rails 6L and 6R of the ladder frame 6 constituting the electric vehicle 1.
  • the plurality of battery packs B1 to Bn have first output ports P11 to P1n (n is an integer) and second output ports P21 to P2n (n is an integer), respectively.
  • the first output ports P11 to P1n are provided at the end on the drive unit 2 side.
  • the second output ports P21 to P2n are provided at the end opposite to the end on the drive unit 2 side.
  • the first output ports P11 to P1n of each of the plurality of battery packs B1 to Bn are electrically connected to the second output ports P21 to P2n of the other battery packs B1 to Bn or the inverter 3.
  • the first output port P11 of the battery pack B1 is electrically connected to the inverter 3 by a cable CI.
  • the first output port P1n of the battery pack Bn is electrically connected to the second output port P21 of the battery pack B1 by the cable CB.
  • the second output ports P21 to P2n of each of the plurality of battery packs B1 to Bn are electrically connected to the first output ports P11 to P1n of the other battery packs B1 to Bn or the power distribution unit 4.
  • the second output port P21 of the battery pack B1 is electrically connected to the first output port P1n of the battery pack Bn by the cable CB.
  • the second output port P2n of the battery pack Bn is electrically connected to the power distribution unit 4 by the cable CP.
  • the inverter 3 is electrically connected to the motor 21 by a cable CM.
  • FIG. 2 is a circuit diagram of a power system mounted on the electric vehicle 1 according to the present embodiment.
  • FIG. 2 shows an equivalent circuit of a power system mounted on the electric vehicle 1 according to the present embodiment.
  • FIG. 2 shows an equivalent circuit in the case where each battery pack includes three battery modules.
  • the battery pack B1 includes three battery modules M11, M12, and M13.
  • the three battery modules M11, M12, and M13 are connected in parallel in the battery pack B1. That is, the battery capacity of the battery pack B1 is a total value of the battery capacities of the three battery modules M11, M12, and M13.
  • the battery pack Bn includes three battery modules M21, M22, and M23.
  • the three battery modules M21, M22, and M23 are connected in parallel in the battery pack Bn, similarly to the three battery modules M11, M12, and M13 included in the battery pack B1. That is, the battery capacity of the battery pack Bn is a total value of the battery capacities of the three battery modules M21, M22, and M23.
  • the positive terminal of the second output port P21 of the battery pack B1 is electrically connected to the positive terminal of the first output port P1n of the battery pack Bn either directly or via another battery pack (not shown) via the cable CB. Is done. Further, the negative terminal of the second output port P21 of the battery pack B1 is electrically connected to the negative terminal of the first output port P1n of the battery pack Bn by the cable CB. That is, the total battery capacity of the electric vehicle 1 is a value obtained by summing the battery capacities of the plurality of battery packs B1 to Bn.
  • the positive terminal of the first output port P11 of the battery pack B1 is electrically connected to the positive terminal of the inverter 3 by the cable CI.
  • the negative terminal of the first output port P11 of the battery pack B1 is electrically connected to the negative terminal of the inverter 3 by a cable CI.
  • the positive terminal of the second output port P2n of the battery pack Bn is electrically connected to the positive terminal of the power distribution unit 4 by the cable CP.
  • the negative end of the second output port P2n of the battery pack Bn is electrically connected to the negative end of the power distribution unit 4 by a cable CP.
  • the electric vehicle 1 As described above, the electric vehicle 1 according to the present embodiment is provided on the rear axle of the electric vehicle 1, and drives the electric vehicle 1 by transmitting the driving force of the motor 21 to the rear wheels 5L and 5R of the electric vehicle 1. And a plurality of battery packs B1 to Bn arranged between the side rails 6L and 6R of the ladder frame 6 constituting the electric vehicle 1 and the vehicle front side from the drive unit 2.
  • the plurality of battery packs B1 to Bn are identical to each other, and each has a first output port P11 to P1n at the end on the drive unit 2 side, and a first at the end opposite to the end on the drive unit 2 side. Two output ports P21 to P2n are provided.
  • the first output ports P11 to P1n of each of the plurality of battery packs B1 to Bn are electrically connected to the second output ports P21 to P2n of the other battery packs B1 to Bn or the inverter 3 connected to the motor 21 of the drive unit 2. Connected.
  • the second output ports P21 to P2n of each of the plurality of battery packs B1 to Bn use the power accumulated in the first output ports P11 to P1n of the other battery packs B1 to Bn or each of the plurality of battery packs B1 to Bn. It is electrically connected to a power distribution unit 4 that distributes power to a plurality of electric auxiliary machines.
  • the total battery capacity of the electric vehicle 1 is a value obtained by summing the battery capacities of the plurality of battery packs B1 to Bn.
  • the battery packs B1 to Bn that are designed, developed, and produced according to the same standard are mounted.
  • the electric vehicle 1 according to the present embodiment can meet the demand for battery capacity optimization with respect to vehicle specifications while suppressing costs.

Abstract

A plurality of battery packs B1-Bn are the same as each other and have first output ports P11-P1n at the respective ends on a drive unit 2 side and second output ports P21-P2n at the ends opposite to the ends on the drive unit 2 side. The first output ports P11-P1n of the respective plurality of battery packs B1-Bn are electrically connected to the second output ports P21-P2n of other battery packs B1-Bn or an inverter connected to a motor of the drive unit. The second output ports P21-P2n of the respective plurality of battery packs B1-Bn are electrically connected to the first output ports P11-P1n of other battery packs B1-Bn or a power distribution unit 4 for distributing power to a plurality of electric auxiliary machines that uses the power stored in each of the plurality of battery packs B1-Bn.

Description

電動車両Electric vehicle
　本発明は、モータを駆動源とする電動車両に関する。 The present invention relates to an electric vehicle using a motor as a drive source.
　近年、下記特許文献１に開示されるように、環境負荷低減の観点から、トラック等の商用車においても電動車両化が検討されている。しかしながら、上記商用車は、乗用車と比較して、ユーザの要望に応じた車両仕様バリエーションが非常に多く存在することから、選択された電動商用車の仕様に対する最適なバッテリ容量も条件により様々存在する。 In recent years, as disclosed in Patent Document 1 below, from the viewpoint of reducing the environmental load, electric vehicles are also being considered for commercial vehicles such as trucks. However, since the commercial vehicle has a large number of vehicle specification variations according to the user's request as compared with the passenger vehicle, there are various optimum battery capacities for the selected electric commercial vehicle specifications depending on conditions. .
特開２０１６－１１３０６３号公報JP 2016-1113063 A
　このような様々なバッテリ容量に応じて最適なバッテリパック側の仕様を設けると、それぞれの容量におけるバッテリパックを設計、開発、及び生産を行うこととなる。これにより、大幅なコスト上昇を招く虞がある。 If the optimal battery pack specifications are provided according to such various battery capacities, the battery pack for each capacity will be designed, developed, and produced. This may lead to a significant cost increase.
　本発明はこのような課題に鑑みてなされたものであり、その目的とするところは、コストを抑制しつつ、車両仕様に対するバッテリ容量最適化の要求に応えることができる電動車両を提供することにある。 The present invention has been made in view of such a problem, and an object of the present invention is to provide an electric vehicle capable of meeting the demand for battery capacity optimization with respect to vehicle specifications while suppressing cost. is there.
　本発明は前述の課題の少なくとも一部を解決するためになされたものであり、以下の態様として実現することができる。 The present invention has been made to solve at least a part of the above-described problems, and can be realized as the following aspects.
　本態様に係る電動車両は、車両のリアアクスルに設けられ、モータの駆動力を前記車両の後輪に伝達することにより、前記車両を駆動させる駆動ユニットと、前記駆動ユニットより車両前方側、かつ前記車両を構成するラダーフレームのサイドレール間に配置される複数のバッテリパックと、を含む。前記複数のバッテリパックは、互いに同一のものであり、各々前記駆動ユニット側の端部に第１出力ポートと、前記駆動ユニット側の端部とは反対側の端部に第２出力ポートとを有する。前記複数のバッテリパック各々の前記第１出力ポートは、他のバッテリパックの前記第２出力ポート、又は前記駆動ユニットの前記モータに連結するインバータに電気的に連結される。前記複数のバッテリパック各々の前記第２出力ポートは、他のバッテリパックの前記第１出力ポート、又は前記複数のバッテリパック各々に蓄積された電力を利用する複数の電動補機に電力を配電する配電部に電気的に連結される。 An electric vehicle according to this aspect is provided on a rear axle of the vehicle, and transmits a driving force of a motor to a rear wheel of the vehicle to drive the vehicle, a vehicle front side from the drive unit, and And a plurality of battery packs arranged between the side rails of the ladder frame constituting the vehicle. The plurality of battery packs are the same as each other, and each has a first output port at the end on the drive unit side and a second output port at the end opposite to the end on the drive unit side. Have. The first output port of each of the plurality of battery packs is electrically connected to an inverter connected to the second output port of another battery pack or the motor of the drive unit. The second output port of each of the plurality of battery packs distributes power to the first output port of another battery pack or a plurality of electric auxiliary machines that use the power stored in each of the plurality of battery packs. It is electrically connected to the power distribution unit.
　本態様に係る電動車両によれば、車両の総バッテリ容量は、複数のバッテリパック各々のバッテリ容量を合計した値である。つまり、様々な仕様の電動車両ごとに、様々なバッテリ容量のバッテリパックを設計、開発、及び生産する必要がなく、同一の規格で設計、開発、及び生産されたバッテリパックの搭載数を増減させることで、様々な仕様の車両に対応することができる。これにより、本態様に係る電動車両は、コストを抑制しつつ、車両仕様に対するバッテリ容量最適化の要求に応えることができる。 According to the electric vehicle according to this aspect, the total battery capacity of the vehicle is a value obtained by totaling the battery capacities of the plurality of battery packs. In other words, it is not necessary to design, develop, and produce battery packs with various battery capacities for each electric vehicle with various specifications, and increase or decrease the number of battery packs designed, developed, and produced according to the same standard. Therefore, it can respond to vehicles of various specifications. Thereby, the electric vehicle which concerns on this aspect can respond to the request | requirement of the battery capacity optimization with respect to vehicle specifications, suppressing cost.
本実施形態に係る電動車両を示す図である。It is a figure which shows the electric vehicle which concerns on this embodiment. 本実施形態に係る電動車両に搭載される電力系統の回路図である。It is a circuit diagram of the electric power system mounted in the electric vehicle which concerns on this embodiment.
　以下、本発明の一実施形態に係る電動車両について、図面を参照して説明する。なお、本実施形態は以下に説明する内容に限定されるものではなく、その要旨を変更しない範囲において任意に変更して実施することが可能である。また、本実施形態の説明に用いる図面は、いずれも構成部材を模式的に示すものであって、理解を深めるべく部分的な強調、拡大、縮小、または省略などを行っており、構成部材の縮尺や形状等を正確に表すものとはなっていない場合がある。 Hereinafter, an electric vehicle according to an embodiment of the present invention will be described with reference to the drawings. In addition, this embodiment is not limited to the content demonstrated below, In the range which does not change the summary, it can change arbitrarily and can implement. In addition, the drawings used for the description of the present embodiment all schematically show constituent members, and are partially emphasized, enlarged, reduced, or omitted to deepen the understanding. In some cases, the scale, shape, and the like are not accurately represented.
　図１は、本実施形態に係る電動車両１を示す図である。なお、図１は、主に本実施形態に係る電動車両１を構成する車輪（後輪５Ｌ，５Ｒ）及びラダーフレーム６、並びに当該ラダーフレーム６に搭載される電力系統を示している。図１に示す電動車両１は、モータ２１を駆動源とし、当該モータ２１により発生した駆動力を車輪に伝達することにより駆動する車両である。本実施形態に係る電動車両１は、トラック等の商用車である。 FIG. 1 is a diagram showing an electric vehicle 1 according to the present embodiment. FIG. 1 mainly shows wheels ( rear wheels 5L and 5R) and a ladder frame 6 constituting the electric vehicle 1 according to the present embodiment, and a power system mounted on the ladder frame 6. An electric vehicle 1 shown in FIG. 1 is a vehicle driven by using a motor 21 as a drive source and transmitting a driving force generated by the motor 21 to wheels. The electric vehicle 1 according to the present embodiment is a commercial vehicle such as a truck.
　本実施形態に係る電動車両１は、例えば、上記モータ２１を含む駆動ユニット２、インバータ３、配電部（Power Distribution Unit：ＰＤＵ）４、及び複数のバッテリパックＢ１～Ｂｎ（ｎは、整数）を含む。駆動ユニット２は、電動車両１のリアアクスルに設けられ、モータ２１が発生する駆動力を電動車両１の後輪５Ｌ，５Ｒに伝達することにより、電動車両１を駆動させる。駆動ユニット２は、モータ２１の他に、少なくとも変速機構、及び差動機構を含む。 The electric vehicle 1 according to the present embodiment includes, for example, a drive unit 2 including the motor 21, an inverter 3, a power distribution unit (PDU) 4, and a plurality of battery packs B 1 to Bn (n is an integer). Including. The drive unit 2 is provided on the rear axle of the electric vehicle 1 and drives the electric vehicle 1 by transmitting the driving force generated by the motor 21 to the rear wheels 5L and 5R of the electric vehicle 1. In addition to the motor 21, the drive unit 2 includes at least a speed change mechanism and a differential mechanism.
　インバータ３は、通常走行時において、複数のバッテリパックＢ１～Ｂｎに蓄積された電力をモータ２１へ供給する。また、インバータ３は、降坂路等の走行経路での走行時（回生走行時）において、モータ２１で発電された電力を複数のバッテリパックＢ１～Ｂｎに蓄積する。 The inverter 3 supplies electric power stored in the plurality of battery packs B1 to Bn to the motor 21 during normal running. The inverter 3 accumulates the electric power generated by the motor 21 in the plurality of battery packs B1 to Bn when traveling on a traveling route such as a downhill road (during regenerative traveling).
　配電部４は、複数のバッテリパックＢ１～Ｂｎに蓄積された電力を利用する複数の電動補機に配電する。例えば、配電部４は、複数のバッテリパックＢ１～Ｂｎに蓄積された電力を、少なくともコンプレッサ、室内ヒータ、及びＰＴＯ（Power Take-Off）に配電する。 The power distribution unit 4 distributes power to a plurality of electric auxiliary machines that use power stored in the plurality of battery packs B1 to Bn. For example, the power distribution unit 4 distributes the electric power stored in the plurality of battery packs B1 to Bn to at least a compressor, an indoor heater, and PTO (Power Take-Off).
　複数のバッテリパックＢ１～Ｂｎは、電動車両１に搭載される電力系統に含まれる各構成に対して電力を供給する。複数のバッテリパックＢ１～Ｂｎには、各々図示しない複数のバッテリモジュールが含まれる。すなわち、複数のバッテリパックＢ１～Ｂｎ各々のバッテリ容量は、複数のバッテリパックＢ１～Ｂｎ各々に含まれる複数のバッテリモジュール各々のバッテリ容量を合計した値である。ここで、複数のバッテリパックＢ１～Ｂｎは、互いに同一のものである。例えば、本実施形態における複数のバッテリパックＢ１～Ｂｎは、同一の規格で設計、開発、及び生産されており、少なくともバッテリ容量及び形状が同一である。 The plurality of battery packs B1 to Bn supply power to each component included in the power system mounted on the electric vehicle 1. Each of the plurality of battery packs B1 to Bn includes a plurality of battery modules (not shown). That is, the battery capacity of each of the plurality of battery packs B1 to Bn is a total value of the battery capacity of each of the plurality of battery modules included in each of the plurality of battery packs B1 to Bn. Here, the plurality of battery packs B1 to Bn are the same. For example, the plurality of battery packs B1 to Bn in the present embodiment are designed, developed, and produced according to the same standard, and at least have the same battery capacity and shape.
　上記複数のバッテリパックＢ１～Ｂｎは、上記駆動ユニット２より車両前方側、かつ電動車両１を構成するラダーフレーム６のサイドレール６Ｌ，６Ｒ間に配置される。複数のバッテリパックＢ１～Ｂｎは、各々第１出力ポートＰ１１～Ｐ１ｎ（ｎは、整数）、及び第２出力ポートＰ２１～Ｐ２ｎ（ｎは、整数）を有する。第１出力ポートＰ１１～Ｐ１ｎは、駆動ユニット２側の端部に設けられる。第２出力ポートＰ２１～Ｐ２ｎは、駆動ユニット２側の端部とは反対側の端部に設けられる。 The plurality of battery packs B1 to Bn are arranged in front of the drive unit 2 and between the side rails 6L and 6R of the ladder frame 6 constituting the electric vehicle 1. The plurality of battery packs B1 to Bn have first output ports P11 to P1n (n is an integer) and second output ports P21 to P2n (n is an integer), respectively. The first output ports P11 to P1n are provided at the end on the drive unit 2 side. The second output ports P21 to P2n are provided at the end opposite to the end on the drive unit 2 side.
　ここで、電動車両１に搭載される電力系統に含まれる各構成の電気的連結関係について説明する。複数のバッテリパックＢ１～Ｂｎ各々の第１出力ポートＰ１１～Ｐ１ｎは、他のバッテリパックＢ１～Ｂｎの第２出力ポートＰ２１～Ｐ２ｎ、又は上記インバータ３に電気的に連結される。例えば、図１に示すように、バッテリパックＢ１の第１出力ポートＰ１１は、ケーブルＣＩにより、インバータ３と電気的に連結される。バッテリパックＢｎの第１出力ポートＰ１ｎは、ケーブルＣＢにより、バッテリパックＢ１の第２出力ポートＰ２１と電気的に連結される。 Here, the electrical connection relationship of each component included in the electric power system mounted on the electric vehicle 1 will be described. The first output ports P11 to P1n of each of the plurality of battery packs B1 to Bn are electrically connected to the second output ports P21 to P2n of the other battery packs B1 to Bn or the inverter 3. For example, as shown in FIG. 1, the first output port P11 of the battery pack B1 is electrically connected to the inverter 3 by a cable CI. The first output port P1n of the battery pack Bn is electrically connected to the second output port P21 of the battery pack B1 by the cable CB.
　また、複数のバッテリパックＢ１～Ｂｎ各々の第２出力ポートＰ２１～Ｐ２ｎは、他のバッテリパックＢ１～Ｂｎの第１出力ポートＰ１１～Ｐ１ｎ、又は上記配電部４に電気的に連結される。例えば、図１に示すように、バッテリパックＢ１の第２出力ポートＰ２１は、ケーブルＣＢにより、バッテリパックＢｎの第１出力ポートＰ１ｎと電気的に連結される。バッテリパックＢｎの第２出力ポートＰ２ｎは、ケーブルＣＰにより、配電部４と電気的に連結される。なお、インバータ３は、ケーブルＣＭにより、上記モータ２１と電気的に連結される。 Further, the second output ports P21 to P2n of each of the plurality of battery packs B1 to Bn are electrically connected to the first output ports P11 to P1n of the other battery packs B1 to Bn or the power distribution unit 4. For example, as shown in FIG. 1, the second output port P21 of the battery pack B1 is electrically connected to the first output port P1n of the battery pack Bn by the cable CB. The second output port P2n of the battery pack Bn is electrically connected to the power distribution unit 4 by the cable CP. The inverter 3 is electrically connected to the motor 21 by a cable CM.
　ここで、電動車両１に搭載される電力系統に含まれる各構成の電気的連結関係について、図２を参照して、より詳細に説明する。図２は、本実施形態に係る電動車両１に搭載される電力系統の回路図である。なお、図２は、本実施形態に係る電動車両１に搭載される電力系統の等価回路を示している。また、図２は、各バッテリパックに３つのバッテリモジュールが含まれる場合の等価回路を示している。 Here, the electrical connection relationship of each component included in the electric power system mounted on the electric vehicle 1 will be described in more detail with reference to FIG. FIG. 2 is a circuit diagram of a power system mounted on the electric vehicle 1 according to the present embodiment. FIG. 2 shows an equivalent circuit of a power system mounted on the electric vehicle 1 according to the present embodiment. FIG. 2 shows an equivalent circuit in the case where each battery pack includes three battery modules.
　まず、図２に示すように、バッテリパックＢ１には、３つのバッテリモジュールＭ１１，Ｍ１２，Ｍ１３が含まれる。３つのバッテリモジュールＭ１１，Ｍ１２，Ｍ１３は、バッテリパックＢ１内において並列接続されている。すなわち、バッテリパックＢ１のバッテリ容量は、３つのバッテリモジュールＭ１１，Ｍ１２，Ｍ１３各々のバッテリ容量を合計した値である。 First, as shown in FIG. 2, the battery pack B1 includes three battery modules M11, M12, and M13. The three battery modules M11, M12, and M13 are connected in parallel in the battery pack B1. That is, the battery capacity of the battery pack B1 is a total value of the battery capacities of the three battery modules M11, M12, and M13.
　次に、バッテリパックＢｎには、３つのバッテリモジュールＭ２１，Ｍ２２，Ｍ２３が含まれる。３つのバッテリモジュールＭ２１，Ｍ２２，Ｍ２３は、バッテリパックＢ１に含まれる３つのバッテリモジュールＭ１１，Ｍ１２，Ｍ１３と同様に、バッテリパックＢｎ内において並列接続されている。すなわち、バッテリパックＢｎのバッテリ容量は、３つのバッテリモジュールＭ２１，Ｍ２２，Ｍ２３各々のバッテリ容量を合計した値である。 Next, the battery pack Bn includes three battery modules M21, M22, and M23. The three battery modules M21, M22, and M23 are connected in parallel in the battery pack Bn, similarly to the three battery modules M11, M12, and M13 included in the battery pack B1. That is, the battery capacity of the battery pack Bn is a total value of the battery capacities of the three battery modules M21, M22, and M23.
　上記バッテリパックＢ１の第２出力ポートＰ２１の正極端は、ケーブルＣＢにより、直接、または図示されないその他のバッテリパックを介して、上記バッテリパックＢｎの第１出力ポートＰ１ｎの正極端と電気的に連結される。また、上記バッテリパックＢ１の第２出力ポートＰ２１の負極端は、ケーブルＣＢにより、上記バッテリパックＢｎの第１出力ポートＰ１ｎの負極端と電気的に連結される。すなわち、電動車両１の総バッテリ容量は、複数のバッテリパックＢ１～Ｂｎ各々のバッテリ容量を合計した値である。つまり、様々な仕様の電動車両１ごとに、様々なバッテリ容量のバッテリパックを設計、開発、及び生産する必要がなく、同一の規格で設計、開発、及び生産されたバッテリパックＢ１～Ｂｎの搭載数を増減させることで、様々な仕様の電動車両１に対応することができる。 The positive terminal of the second output port P21 of the battery pack B1 is electrically connected to the positive terminal of the first output port P1n of the battery pack Bn either directly or via another battery pack (not shown) via the cable CB. Is done. Further, the negative terminal of the second output port P21 of the battery pack B1 is electrically connected to the negative terminal of the first output port P1n of the battery pack Bn by the cable CB. That is, the total battery capacity of the electric vehicle 1 is a value obtained by summing the battery capacities of the plurality of battery packs B1 to Bn. In other words, it is not necessary to design, develop, and produce battery packs with various battery capacities for each electric vehicle 1 with various specifications, and battery packs B1 to Bn that are designed, developed, and produced according to the same standard are mounted. By increasing or decreasing the number, it is possible to correspond to the electric vehicle 1 having various specifications.
　次に、上記バッテリパックＢ１の第１出力ポートＰ１１の正極端は、ケーブルＣＩにより、上記インバータ３の正極端と電気的に連結される。上記バッテリパックＢ１の第１出力ポートＰ１１の負極端は、ケーブルＣＩにより、上記インバータ３の負極端と電気的に連結される。 Next, the positive terminal of the first output port P11 of the battery pack B1 is electrically connected to the positive terminal of the inverter 3 by the cable CI. The negative terminal of the first output port P11 of the battery pack B1 is electrically connected to the negative terminal of the inverter 3 by a cable CI.
　最後に、上記バッテリパックＢｎの第２出力ポートＰ２ｎの正極端は、ケーブルＣＰにより、上記配電部４の正極端と電気的に連結される。上記バッテリパックＢｎの第２出力ポートＰ２ｎの負極端は、ケーブルＣＰにより、上記配電部４の負極端と電気的に連結される。 Finally, the positive terminal of the second output port P2n of the battery pack Bn is electrically connected to the positive terminal of the power distribution unit 4 by the cable CP. The negative end of the second output port P2n of the battery pack Bn is electrically connected to the negative end of the power distribution unit 4 by a cable CP.
（総括）
　上述の通り、本実施形態に係る電動車両１は、電動車両１のリアアクスルに設けられ、モータ２１の駆動力を電動車両１の後輪５Ｌ，５Ｒに伝達することにより、電動車両１を駆動させる駆動ユニット２、及び駆動ユニット２より車両前方側、かつ電動車両１を構成するラダーフレーム６のサイドレール６Ｌ，６Ｒ間に配置される複数のバッテリパックＢ１～Ｂｎを含む。複数のバッテリパックＢ１～Ｂｎは、互いに同一のものであり、各々駆動ユニット２側の端部に第１出力ポートＰ１１～Ｐ１ｎ、及び駆動ユニット２側の端部とは反対側の端部に第２出力ポートＰ２１～Ｐ２ｎを有する。複数のバッテリパックＢ１～Ｂｎ各々の第１出力ポートＰ１１～Ｐ１ｎは、他のバッテリパックＢ１～Ｂｎの第２出力ポートＰ２１～Ｐ２ｎ、又は駆動ユニット２のモータ２１に連結するインバータ３に電気的に連結される。複数のバッテリパックＢ１～Ｂｎ各々の第２出力ポートＰ２１～Ｐ２ｎは、他のバッテリパックＢ１～Ｂｎの第１出力ポートＰ１１～Ｐ１ｎ、又は複数のバッテリパックＢ１～Ｂｎ各々に蓄積された電力を利用する複数の電動補機に電力を配電する配電部４に電気的に連結される。 (Summary)
As described above, the electric vehicle 1 according to the present embodiment is provided on the rear axle of the electric vehicle 1, and drives the electric vehicle 1 by transmitting the driving force of the motor 21 to the rear wheels 5L and 5R of the electric vehicle 1. And a plurality of battery packs B1 to Bn arranged between the side rails 6L and 6R of the ladder frame 6 constituting the electric vehicle 1 and the vehicle front side from the drive unit 2. The plurality of battery packs B1 to Bn are identical to each other, and each has a first output port P11 to P1n at the end on the drive unit 2 side, and a first at the end opposite to the end on the drive unit 2 side. Two output ports P21 to P2n are provided. The first output ports P11 to P1n of each of the plurality of battery packs B1 to Bn are electrically connected to the second output ports P21 to P2n of the other battery packs B1 to Bn or the inverter 3 connected to the motor 21 of the drive unit 2. Connected. The second output ports P21 to P2n of each of the plurality of battery packs B1 to Bn use the power accumulated in the first output ports P11 to P1n of the other battery packs B1 to Bn or each of the plurality of battery packs B1 to Bn. It is electrically connected to a power distribution unit 4 that distributes power to a plurality of electric auxiliary machines.
　上記構成によれば、本実施形態に係る電動車両１は、電動車両１の総バッテリ容量は、複数のバッテリパックＢ１～Ｂｎ各々のバッテリ容量を合計した値である。つまり、様々な仕様の電動車両１ごとに、様々なバッテリ容量のバッテリパックを設計、開発、及び生産する必要がなく、同一の規格で設計、開発、及び生産されたバッテリパックＢ１～Ｂｎの搭載数を増減させることで、様々な仕様の電動車両１に対応することができる。 According to the above configuration, in the electric vehicle 1 according to the present embodiment, the total battery capacity of the electric vehicle 1 is a value obtained by summing the battery capacities of the plurality of battery packs B1 to Bn. In other words, it is not necessary to design, develop, and produce battery packs with various battery capacities for each electric vehicle 1 with various specifications, and battery packs B1 to Bn that are designed, developed, and produced according to the same standard are mounted. By increasing or decreasing the number, it is possible to correspond to the electric vehicle 1 having various specifications.
　かくして、本実施形態に係る電動車両１は、コストを抑制しつつ、車両仕様に対するバッテリ容量最適化の要求に応えることができる。 Thus, the electric vehicle 1 according to the present embodiment can meet the demand for battery capacity optimization with respect to vehicle specifications while suppressing costs.
　　１　　電動車両
　　２　　駆動ユニット
　　３　　インバータ
　　４　　配電部（ＰＤＵ）
　　５Ｌ，５Ｒ　　後輪
　　６　　ラダーフレーム
　　６Ｌ，６Ｒ　　サイドレール
　　２１　　モータ
　　Ｂ１～Ｂｎ　　バッテリパック
　　ＣＢ，ＣＩ，ＣＭ，ＣＰ　　ケーブル
　　Ｍ１１，Ｍ１２，Ｍ１３，Ｍ２１，Ｍ２２，Ｍ２３　　バッテリモジュール
　　Ｐ１１～Ｐ１ｎ　　第１出力ポート
　　Ｐ２１～Ｐ２ｎ　　第２出力ポート 1 Electric Vehicle 2 Drive Unit 3 Inverter 4 Power Distribution Unit (PDU)
5L, 5R Rear wheel 6 Ladder frame 6L, 6R Side rail 21 Motor B1 to Bn Battery pack CB, CI, CM, CP Cable M11, M12, M13, M21, M22, M23 Battery module P11 to P1n First output port P21 to P2n second output port

Claims (1)

  1. 　車両のリアアクスルに設けられ、モータの駆動力を前記車両の後輪に伝達することにより、前記車両を駆動させる駆動ユニットと、
    　前記駆動ユニットより車両前方側、かつ前記車両を構成するラダーフレームのサイドレール間に配置される複数のバッテリパックと、を含み、
    　前記複数のバッテリパックは、互いに同一のものであり、各々前記駆動ユニット側の端部に第１出力ポートと、前記駆動ユニット側の端部とは反対側の端部に第２出力ポートとを有し、
    　前記複数のバッテリパック各々の前記第１出力ポートは、他のバッテリパックの前記第２出力ポート、又は前記駆動ユニットの前記モータに連結するインバータに電気的に連結され、
    　前記複数のバッテリパック各々の前記第２出力ポートは、他のバッテリパックの前記第１出力ポート、又は前記複数のバッテリパック各々に蓄積された電力を利用する複数の電動補機に電力を配電する配電部に電気的に連結される、電動車両。     A drive unit that is provided on a rear axle of the vehicle and that drives the vehicle by transmitting a driving force of a motor to the rear wheels of the vehicle;
    A plurality of battery packs arranged on the vehicle front side from the drive unit and between side rails of a ladder frame constituting the vehicle,
    The plurality of battery packs are the same as each other, and each has a first output port at the end on the drive unit side and a second output port at the end opposite to the end on the drive unit side. Have
    The first output port of each of the plurality of battery packs is electrically connected to the second output port of another battery pack, or an inverter connected to the motor of the drive unit,
    The second output port of each of the plurality of battery packs distributes power to the first output port of another battery pack or a plurality of electric auxiliary machines that use the power stored in each of the plurality of battery packs. An electric vehicle electrically connected to a power distribution unit.
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Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2003142707A (en) * 2001-07-13 2003-05-16 Sekisui Chem Co Ltd Method for confirming connection of solar battery parallel array
JP2007333691A (en) * 2006-06-19 2007-12-27 Yazaki Corp Electronic gas meter and battery pack for the electronic gas meter
JP2017192272A (en) * 2016-04-15 2017-10-19 日野自動車株式会社 Power supply controller

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2003142707A (en) * 2001-07-13 2003-05-16 Sekisui Chem Co Ltd Method for confirming connection of solar battery parallel array
JP2007333691A (en) * 2006-06-19 2007-12-27 Yazaki Corp Electronic gas meter and battery pack for the electronic gas meter
JP2017192272A (en) * 2016-04-15 2017-10-19 日野自動車株式会社 Power supply controller

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