JPH11355901A - Power controller for electric car - Google Patents
Power controller for electric carInfo
- Publication number
- JPH11355901A JPH11355901A JP10161763A JP16176398A JPH11355901A JP H11355901 A JPH11355901 A JP H11355901A JP 10161763 A JP10161763 A JP 10161763A JP 16176398 A JP16176398 A JP 16176398A JP H11355901 A JPH11355901 A JP H11355901A
- Authority
- JP
- Japan
- Prior art keywords
- power control
- circuit
- power
- electric
- electric load
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Classifications
-
- 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
- Y02T90/12—Electric charging stations
Landscapes
- Electric Propulsion And Braking For Vehicles (AREA)
- Dc-Dc Converters (AREA)
- Charge And Discharge Circuits For Batteries Or The Like (AREA)
Abstract
Description
【0001】[0001]
【発明の属する技術分野】本発明はバッテリで走行する
電気車において、補助機器に電力を供給するための電力
制御装置に関するものである。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a power control device for supplying power to auxiliary equipment in an electric vehicle running on a battery.
【0002】[0002]
【従来の技術】バッテリで走行する電気車は蓄電力量が
限られているため、エンジン車と比較して走行距離が短
いことが問題である。これに対する解決策として走行電
動機をより高効率で運転する方法(特開平8−228404 号
公報ほか)以外にも、例えば着脱自在な補助高電圧バッ
テリを用いて車両搭載蓄電量を増やす方法(特開平7−1
23514 号公報)や、あるいは走行に直接関与しない補助
機器類を小型軽量化する方法(特開平7−170611 号公
報,特開平7−212901 号公報ほか)などがある。2. Description of the Related Art An electric vehicle running on a battery has a limited amount of stored electric power, and thus has a problem that its traveling distance is shorter than that of an engine vehicle. As a solution to this problem, besides a method of operating a traveling motor with higher efficiency (Japanese Patent Application Laid-Open No. 8-228404, etc.), a method of increasing the amount of power stored in a vehicle using a detachable auxiliary high-voltage battery, for example (Japanese Patent Application Laid-Open No. H08-228404). 7-1
No. 23514), or a method for reducing the size and weight of auxiliary devices not directly involved in running (Japanese Patent Application Laid-Open Nos. 7-170611, 7-212901, etc.).
【0003】[0003]
【発明が解決しようとする課題】しかし、車両の客室や
荷室をより広く確保するためには、車両寸法の制約によ
り車載機器の設置スペースをより小さくすることにな
り、特開平7−123514 号公報にあるようにバッテリを多
量に車載したり、バッテリ台車を牽引したりできるとは
限らない。However, in order to secure a wider cabin and luggage compartment of the vehicle, the installation space of the on-vehicle equipment must be reduced due to restrictions on the size of the vehicle. As described in the publication, it is not always possible to mount a large number of batteries on a vehicle or to pull a battery cart.
【0004】一方、補助機器では、重量物である補助機
器用バッテリを廃するなど、システムを小型軽量化する
ことは有効である。しかし特開平7−170611 号公報にあ
るようにDC−DCコンバータを用いると補助機器用バ
ッテリは不要になるが、その内部にこれも重量物である
変圧器を有するためその改善効果の割合は小さい。しか
も、想定負荷の増加に対応して変圧器も大型化しなけれ
ばならない。また、特開平7−212901 号公報にあるよう
な定電流インバータを用いる方法も系全体で考えればD
C−DCコンバータの一種とみなせる。On the other hand, in the case of auxiliary equipment, it is effective to reduce the size and weight of the system by, for example, eliminating the battery for auxiliary equipment that is heavy. However, when a DC-DC converter is used as disclosed in Japanese Patent Application Laid-Open No. 7-170611, a battery for auxiliary equipment becomes unnecessary. However, since a transformer, which is also a heavy object, is provided inside the battery, the rate of improvement is small. . In addition, the size of the transformer must be increased in response to an increase in the assumed load. In addition, a method using a constant current inverter as disclosed in Japanese Patent Application Laid-Open No.
It can be regarded as a kind of C-DC converter.
【0005】本発明の目的は、補助機器駆動用の電源を
改善することで車両の走行距離を延長する電気車用電力
制御装置を提供することにある。It is an object of the present invention to provide a power control device for an electric vehicle that extends the mileage of a vehicle by improving a power supply for driving auxiliary equipment.
【0006】[0006]
【課題を解決するための手段】本発明では電気車の走行
距離を延長するために、補助機器の駆動にスイッチング
電源回路による電力制御回路を用いることで、電源を走
行電動機と共通化して、補助機器システムを簡素化し、
これを走行電動機駆動用電力変換装置の冷却装置に設置
することと合せて、小型軽量化をなしている。According to the present invention, in order to extend the mileage of an electric vehicle, a power control circuit using a switching power supply circuit is used to drive auxiliary equipment. Simplify the equipment system,
This is installed in the cooling device of the power converter for driving the traveling motor, and the size and weight are reduced.
【0007】また補助機器をいくつかの回路群に分散し
て、電力制御回路の小容量化・最適容量化を図り、回路
群に個別に制御する。[0007] Further, the auxiliary equipment is distributed to several circuit groups to reduce the capacity and optimize the capacity of the power control circuit and individually control the circuit groups.
【0008】さらに駆動する負荷が誘導性を持つものに
ついては、これを電力制御回路の誘導コイルとして動作
させることで単独の誘導コイルを省略し、電力制御回路
の小型軽量化を図っている。Further, when the load to be driven is inductive, it is operated as an induction coil of a power control circuit, thereby eliminating a single induction coil, thereby reducing the size and weight of the power control circuit.
【0009】[0009]
【発明の実施の形態】以下、本発明の一実施例を図面を
参照して説明する。DESCRIPTION OF THE PREFERRED EMBODIMENTS One embodiment of the present invention will be described below with reference to the drawings.
【0010】図1は本実施例の構成を示す。主バッテリ
1は車両ごとに規定された直流100〜350V程度を出
力している。走行電動機用電力変換装置2は主バッテリ
1の出力を制御して走行電動機3を駆動し、車両を走行
させる。FIG. 1 shows the configuration of this embodiment. The main battery 1 outputs a DC of about 100 to 350 V specified for each vehicle. The traction motor power converter 2 controls the output of the main battery 1 to drive the traction motor 3 to drive the vehicle.
【0011】A電力制御回路11はA電気負荷12に応
じてチョッパ回路やインバータ回路などのスイッチング
電源回路からなり、A制御指令手段13により制御され
る。A電力制御回路11は主バッテリ1の出力を変換
し、A電気負荷12に直接供給する。11LはA電力制
御回路11を構成するA誘導コイルである。The A power control circuit 11 comprises a switching power supply circuit such as a chopper circuit or an inverter circuit according to the A electric load 12, and is controlled by the A control command means 13. The A power control circuit 11 converts the output of the main battery 1 and supplies it directly to the A electric load 12. 11L is an A induction coil constituting the A power control circuit 11.
【0012】図2はA電気負荷12に電磁誘導性がな
く、またA電力制御回路11が降圧チョッパ回路である
場合の実施例である。A電力制御回路11は主にA誘導
コイル11LとAスイッチング素子14とAフリーホイ
ルダイオード15から構成される。Aスイッチング素子
14はA制御指令手段13によりA電気負荷12に流れ
る負荷電流を断続する。FIG. 2 shows an embodiment in which the A electric load 12 has no electromagnetic induction and the A power control circuit 11 is a step-down chopper circuit. The A power control circuit 11 mainly includes an A induction coil 11L, an A switching element 14, and an A free wheel diode 15. The A switching element 14 interrupts the load current flowing to the A electric load 12 by the A control command means 13.
【0013】いま、Aスイッチング素子14が通流状態
の時の負荷電流は、主バッテリ1→Aスイッチング素子
14→A誘導コイル11L→A電気負荷12→主バッテ
リ1と流れる。When the A-switching element 14 is conducting, the load current flows from the main battery 1 to the A-switching element 14 → A induction coil 11L → A electric load 12 → the main battery 1.
【0014】またAスイッチング素子14が断状態の時
の負荷電流はA誘導コイル11Lの電磁誘導作用によ
り、A誘導コイル11L→A電気負荷12→Aフリーホ
イルダイオード15→A誘導コイル11Lと流れる。The load current when the A switching element 14 is in a disconnected state flows through the A induction coil 11L → A electric load 12 → A free wheel diode 15 → A induction coil 11L due to the electromagnetic induction of the A induction coil 11L.
【0015】図3はB電力制御回路が昇圧チョッパ回路
である場合の実施例である。B電力制御回路21は主に
B誘導コイル21LとBスイッチング素子24とB逆流
防止ダイオード25から構成される。Bスイッチング素
子24はB制御指令手段23により、B誘導コイル21
Lに流れる誘導電流を断続する。FIG. 3 shows an embodiment in which the B power control circuit is a boost chopper circuit. The B power control circuit 21 mainly includes a B induction coil 21L, a B switching element 24, and a B backflow prevention diode 25. The B switching element 24 is controlled by the B control
The induced current flowing through L is intermittent.
【0016】いま、Bスイッチング素子24が通流状態
の時に流れる電流は、主バッテリ1→Bスイッチング素
子24→B誘導コイル21L→主バッテリ1となる。The current flowing when the B switching element 24 is in the conduction state is: the main battery 1 → the B switching element 24 → the B induction coil 21L → the main battery 1.
【0017】またBスイッチング素子24が断状態の時
に流れる電流は、主バッテリ1→B誘導コイル21L→
B逆流防止ダイオード25→B電気負荷22→主バッテ
リ1となる。このとき、B電気負荷22には主バッテリ
1の電圧とB誘導コイル21Lの電磁誘導作用による誘起
電圧の和が印加される。The current flowing when the B switching element 24 is in the disconnected state is determined by the main battery 1 → the B induction coil 21L →
The B backflow prevention diode 25 → the B electric load 22 → the main battery 1. At this time, the sum of the voltage of the main battery 1 and the voltage induced by the electromagnetic induction of the B induction coil 21L is applied to the B electric load 22.
【0018】図4はC電気負荷32が電動機や白熱ラン
プ類のように電磁誘導性があり、またC電力制御回路3
1が降圧チョッパ回路である場合の実施例である。C電
気負荷32は図2でA誘導コイル11LとA電気負荷1
2が一体になったものと考えることができる。従って、
この例は図2と同じ作用をするが、A誘導コイル11Lに
相当するものを省略できる点が大きく異なる。このとき
図2のように誘導コイルが必要となる場合でも、その回
路群の電気負荷に合わせた小容量のもので済み、小型軽
量化できる。FIG. 4 shows that the C electric load 32 has electromagnetic induction like a motor or an incandescent lamp, and the C electric power control circuit 3
This is an embodiment in which 1 is a step-down chopper circuit. The C electric load 32 is the A induction coil 11L and the A electric load 1 in FIG.
It can be considered that the two are integrated. Therefore,
This example operates in the same manner as in FIG. 2 except that the part corresponding to the A induction coil 11L can be omitted. At this time, even when an induction coil is required as shown in FIG. 2, a small capacity according to the electric load of the circuit group is sufficient, and the size and weight can be reduced.
【0019】本実施例のように電力制御回路と電気負荷
を対にして一つの回路群を構成し、いくつかの回路群を
主バッテリ1に並列に接続すれば、それぞれの回路群の
電源を主バッテリ1で共用するため、別系統のバッテリ
は不要である。As in the present embodiment, a power control circuit and an electric load are paired to form one circuit group, and several circuit groups are connected in parallel to the main battery 1 so that the power supply of each circuit group can be reduced. Since the main battery 1 is used in common, a separate system battery is not required.
【0020】またチョッパ回路では、スイッチング素子
の断続の割合である通流率を変えることで負荷に流れる
電流を増減することができる。断状態に保てば負荷への
電力供給を停止することもできる。すなわち、電気負荷
を個別に起動・停止したり、能力可変運転を行うことを
回路群ごとに行うことが可能である。In the chopper circuit, the current flowing through the load can be increased or decreased by changing the conduction ratio, which is the rate of switching of the switching element. If the disconnection state is maintained, the power supply to the load can be stopped. That is, it is possible to individually start and stop the electric loads and perform the variable capacity operation for each circuit group.
【0021】さらに、図5に示すように複数のD電気負
荷42を並列に接続したものでは、D電力制御回路41
を起動・停止することでD電気負荷42を一斉に回路群
ごと起動・停止することができるほか、D電気負荷42
に個別に接続した負荷スイッチ42Sにより単独に起動
・停止することも可能である。D電気負荷42にD負荷
制御指令手段42Cがあれば、個別に能力可変運転を行
うことも可能である。また本実施例によれば、電力制御
回路,電気負荷ともに用途に合わせた定格・容量のもの
とすることができるため、最適化設計が容易である。例
えばエアコン用電動機とワイパー用電動機やパワーウィ
ンドウ用電動機など、負荷容量の異なる電動機の定格電
源電圧や容量を用途に合わせて、別個に設定することが
可能となり、その回路群の電力制御回路もそれらの電気
負荷に合わせて設計することが可能である。すなわち、
単体での効率向上を図ったり、外形寸法を考慮した設計
とすることなどが容易にできるようになる。Further, when a plurality of D electric loads 42 are connected in parallel as shown in FIG.
By starting and stopping the D electric load 42, the D electric load 42 can be simultaneously started and stopped for each circuit group.
It is also possible to start and stop independently by the load switch 42S individually connected to the power supply. If the D electric load 42 has the D load control command means 42C, it is also possible to individually perform the variable capacity operation. Further, according to the present embodiment, since both the power control circuit and the electric load can be of a rating and capacity according to the application, the optimization design is easy. For example, the rated power supply voltage and capacity of motors with different load capacities, such as motors for air conditioners, motors for wipers, and motors for power windows, can be set separately according to the application. It is possible to design according to the electrical load. That is,
It is possible to easily improve the efficiency of a single device, or to easily design the device in consideration of the external dimensions.
【0022】図6は2つの回路群に負荷切替手段5を付
加したものである。ここで図6は、E電力制御回路51
が故障し、F電気負荷62よりもE電気負荷52を優先
して使用する時に、負荷切替手段5を作用してF電力制
御回路の出力をE電気負荷52に供給した状態を想定し
て示している。FIG. 6 shows an example in which load switching means 5 is added to two circuit groups. Here, FIG.
Has failed, the load switching means 5 is operated to supply the output of the F power control circuit to the E electric load 52 when the E electric load 52 is used with priority over the F electric load 62. ing.
【0023】このように、複数の回路群で電力制御回路
の容量と電気負荷の容量に共通性があれば、互いにバッ
クアップ手段として用いることも可能である。なおイン
バータ回路は、チョッパ回路をブリッジ構成にしたもの
であるので、本実施例と同様に考えることができる。As described above, as long as the capacity of the power control circuit and the capacity of the electric load are common in a plurality of circuit groups, they can be used as backup means. Since the chopper circuit has a bridge configuration, the inverter circuit can be considered in the same manner as in the present embodiment.
【0024】図1で、走行電動機用電力変化装置2と電
力制御回路(11,21,・・・など)は単一の主バッ
テリ1から電力の供給を受けている。すなわち、それぞ
れを構成している半導体などの発熱素子のための冷却装
置4は共用することができるため、装置を簡素化し小型
軽量化できる。さらに主バッテリ1との接続配線も走行
電動機用電力変化装置2と電力制御回路(11,21,
・・・など)とで一部を共用できるため、装置の簡素化
・小型軽量化のみならず主バッテリ1の高電圧に対する
取扱い安全面でも有効である。In FIG. 1, the power changing device 2 for the traveling motor and the power control circuits (11, 21,...) Are supplied with power from a single main battery 1. That is, since the cooling devices 4 for the heating elements such as semiconductors constituting the respective components can be shared, the devices can be simplified and the size and weight can be reduced. Further, the connection wiring to the main battery 1 is also made by the power changing device 2 for the traveling motor and the power control circuit (11, 21).
..) Can be shared, which is effective not only in simplifying and reducing the size and weight of the device, but also in terms of handling safety against high voltage of the main battery 1.
【0025】また電気負荷の発熱体を冷却装置4に設置
できる時は、これをなすことでも装置の簡素化・小型軽
量化ができる。When a heating element of an electric load can be installed in the cooling device 4, the device can be simplified and reduced in size and weight by doing so.
【0026】[0026]
【発明の効果】本発明によれば、補助機器の電源部分を
小型軽量化できるほか、使用していない補助機器への電
力供給を停止するので、バッテリの電力消費を低減し、
走行距離を延長する効果がある。また、高電圧配線が走
行電動機用電力変換装置内に集約されるため、安全設計
が容易となる効果もある。According to the present invention, the power supply portion of the auxiliary equipment can be reduced in size and weight, and the power supply to the auxiliary equipment which is not used is stopped, so that the power consumption of the battery is reduced.
This has the effect of extending the mileage. In addition, since high-voltage wiring is concentrated in the power converter for a traveling motor, there is an effect that safety design is facilitated.
【図1】本実施例の構成を示す電気車用電力制御装置の
回路図。FIG. 1 is a circuit diagram of a power control device for an electric vehicle, showing a configuration of the present embodiment.
【図2】電力制御回路の降圧チョッパ回路である場合の
例を示す図。FIG. 2 is a diagram showing an example of a case where the power control circuit is a step-down chopper circuit.
【図3】電力制御回路の昇圧チョッパ回路である場合の
例を示す図。FIG. 3 is a diagram illustrating an example in which the power control circuit is a boost chopper circuit.
【図4】電気負荷が電磁誘導作用を持つ場合の例を示す
回路図。FIG. 4 is a circuit diagram showing an example in which an electric load has an electromagnetic induction effect.
【図5】電気負荷が複数接続されている例を示す回路
図。FIG. 5 is a circuit diagram showing an example in which a plurality of electric loads are connected.
【図6】負荷切替回路を有する回路群の例を示す回路
図。FIG. 6 is a circuit diagram showing an example of a circuit group having a load switching circuit.
【符号の説明】 1…主バッテリ、2…走行電動機用電力変換装置、3…
走行電動機、4…冷却装置、5…負荷切替手段、11…
A電力制御回路、11L…A誘導コイル、12…A電気
負荷、13…A制御指令手段、14…Aスイッチング素
子、15…フリーホイルダイオード。[Description of Signs] 1 ... Main battery, 2 ... Power converter for traveling motor, 3 ...
Traveling electric motor, 4 ... cooling device, 5 ... load switching means, 11 ...
A power control circuit, 11L A induction coil, 12 A electric load, 13 A control command means, 14 A switching element, 15 free wheel diode.
Claims (5)
電圧を所要の電圧に変換し、接続されている電気負荷に
直接供給して駆動する電力制御回路を備えていることを
特徴とする電気車用電力制御装置。1. A high-voltage main battery and a power control circuit for converting an output voltage of the main battery into a required voltage and directly supplying and driving the connected electric load. Power control device for electric vehicles.
する発熱素子および該電気負荷に含まれる発熱部品のい
ずれかもしくは両方と、電気車の走行電動機を駆動する
電力変換装置の発熱素子を同時に冷却する単一の冷却装
置を備えていることを特徴とする電気車用電力制御装
置。2. A power converter according to claim 1, wherein one or both of a heating element constituting said power control circuit and a heating element included in said electric load are provided. An electric power control device for an electric vehicle, comprising a single cooling device for simultaneously cooling.
つ以上の回路群としてまとめ、該回路群ごとに電力制御
回路を備えていることを特徴とする電気車用電力制御装
置。3. The electric load according to claim 1 or 2,
An electric power control device for an electric vehicle, wherein the power control circuit is provided as one or more circuit groups, and a power control circuit is provided for each of the circuit groups.
該電気負荷が必要とする電力量に合わせて出力を可変制
御もしくは停止する電力制御回路を備えていることを特
徴とする電気車用電力制御装置。4. An electric vehicle according to claim 3, further comprising a power control circuit for variably controlling or stopping an output in accordance with an amount of power required by said electric load connected to said circuit group. Power control device.
れている電気負荷が電磁誘導性を持つものであるとき
に、該電気負荷を誘導コイルとして該回路群を駆動する
電力制御回路を備えていることを特徴とする電気車用電
力制御装置。5. The power control for driving the circuit group using the electric load as an induction coil when the connected electric load has an electromagnetic inductive property among the circuit groups according to claim 3 or 4. A power control device for an electric vehicle, comprising a circuit.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP10161763A JPH11355901A (en) | 1998-06-10 | 1998-06-10 | Power controller for electric car |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP10161763A JPH11355901A (en) | 1998-06-10 | 1998-06-10 | Power controller for electric car |
Publications (1)
Publication Number | Publication Date |
---|---|
JPH11355901A true JPH11355901A (en) | 1999-12-24 |
Family
ID=15741439
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP10161763A Pending JPH11355901A (en) | 1998-06-10 | 1998-06-10 | Power controller for electric car |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPH11355901A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2009033893A (en) * | 2007-07-27 | 2009-02-12 | Hitachi Ltd | In-vehicle actuator system |
-
1998
- 1998-06-10 JP JP10161763A patent/JPH11355901A/en active Pending
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2009033893A (en) * | 2007-07-27 | 2009-02-12 | Hitachi Ltd | In-vehicle actuator system |
JP4620709B2 (en) * | 2007-07-27 | 2011-01-26 | 日立オートモティブシステムズ株式会社 | In-vehicle actuator system |
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