JP5270931B2 - Vehicle electrical equipment - Google Patents

Vehicle electrical equipment Download PDF

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JP5270931B2
JP5270931B2 JP2008051395A JP2008051395A JP5270931B2 JP 5270931 B2 JP5270931 B2 JP 5270931B2 JP 2008051395 A JP2008051395 A JP 2008051395A JP 2008051395 A JP2008051395 A JP 2008051395A JP 5270931 B2 JP5270931 B2 JP 5270931B2
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power
battery
power converter
vehicle
generator
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JP2009213206A (en
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邦明 生井
邦彦 田中
淳 森本
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Honda Motor Co Ltd
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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
    • Y02E60/10—Energy storage using 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
    • Y02T10/70—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
    • Y02T10/72—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
    • Y02T10/00—Road transport of goods or passengers
    • Y02T10/80—Technologies aiming to reduce greenhouse gasses emissions common to all road transportation technologies
    • Y02T10/92—Energy efficient charging or discharging systems for batteries, ultracapacitors, supercapacitors or double-layer capacitors specially adapted for vehicles

Description

本発明は、アイドルストップ機能を備えている車両に好適な電気装置に関する。   The present invention relates to an electric device suitable for a vehicle having an idle stop function.

アイドルストップ機能は、信号待ちなどの停車中は、エンジンを止めて、燃料の消費を抑える機能であり、近年、多くの車両に採用されている。   The idle stop function is a function of stopping the engine and stopping fuel consumption while the vehicle is stopped, such as waiting for a signal, and has been adopted in many vehicles in recent years.

このようなアイドルストップに適した車両用電源装置が各種提案されている（例えば、特許文献１参照。）。
特開２００６−６７６４４公報（図１） Various vehicle power supply devices suitable for such an idle stop have been proposed (see, for example, Patent Document 1).
JP 2006-67644 A (FIG. 1)

特許文献１の技術は、同公報の図１に示されるように、発電機（１）、電力変換器（５）及び電気負荷（３）を備えた電源装置に、さらに第一バッテリ（２）と第二バッテリ（４）とコントローラ（６）を備えている。そして、アイドルストップ時には、先ず第一バッテリ（２）で電気負荷（３）へ給電し、次に、第一バッテリ（２）と第二バッテリ（４）とで電気負荷（３）へ給電し、その後に第二バッテリ（４）で電気負荷（３）へ給電することを特徴とする。   As shown in FIG. 1 of the same publication, the technology of Patent Document 1 includes a power source device including a generator (1), a power converter (5), and an electric load (3), and further a first battery (2). And a second battery (4) and a controller (6). And at the time of idling stop, first, the first battery (2) supplies power to the electrical load (3), then the first battery (2) and the second battery (4) supply power to the electrical load (3), Thereafter, power is supplied to the electric load (3) by the second battery (4).

特許文献１の技術によれば、第一バッテリ（２）を優先的に使用し、第二バッテリ（４）は副次的な使用に留まる。このため、第二バッテリ（４）は小型、軽量化が可能となる。   According to the technique of Patent Document 1, the first battery (2) is preferentially used, and the second battery (4) remains secondary. For this reason, the second battery (4) can be reduced in size and weight.

しかし、２個のバッテリを配置すると、バッテリの収納スペースが嵩み、バッテリの調達費用も嵩む。また、ハーネスの本数も増加する。
特に小型二輪車では２個のバッテリを搭載することは収納の点から好ましくない。
また、小型化の観点で言えば、発電機や電力交換器もできるだけ小さいことが望まれる。
そこで、小型二輪車にも適用可能な電源装置（電気装置）が求められる。 However, when two batteries are arranged, the storage space for the battery increases and the procurement cost of the battery also increases. In addition, the number of harnesses also increases.
In particular, in a small two-wheeled vehicle, mounting two batteries is not preferable from the viewpoint of storage.
In terms of miniaturization, it is desirable that the generator and the power exchanger be as small as possible.
Therefore, there is a demand for a power supply device (electric device) that can also be applied to small motorcycles.

本発明は、小型で軽量な電気装置を提供することを課題とする。   An object of the present invention is to provide a small and lightweight electric device.

請求項１に係る車両の電気装置は、アイドルストップ機能を有する車両に搭載されている内燃機関により駆動されて発電する発電機と、この発電機で発生した電力を整流し電圧調整する電力変換器と、この電力変換器で変換された電力の一部が供給されて消費する灯火器と、前記電力変換器で変換された電力の残部が供給されて蓄えるバッテリと、前記発電機が発電状態であるか否かの運転情報を受けて、発電状態であるときには前記電力変換器と前記灯火器とを電気的に導通させると共に前記バッテリと前記灯火器とは電気的に非導通とし、非発電状態であるときには前記電力変換器と前記灯火器とを電気的に非導通にすると共に前記バッテリと前記灯火器とは電気的に導通させる切替部と、を備える車両の電気装置であって、前記切替部は、車速センサの車速情報に基づき、前記発電機が停止する前に前記切替部を作動させて、前記バッテリと前記灯火器とを導通させる制御部を備え、前記電力変換器は、半波整流部にて構成され、前記半波整流のうちプラス側或いはマイナス側の一方は前記灯火器に供給され、他方は前記バッテリに対して供給され、前記車両は、自動二輪車であって、前記灯火器は、常時点灯が義務づけられて前方を照らすヘッドライトであることを特徴とする。 An electric device for a vehicle according to claim 1 is a generator that generates power by being driven by an internal combustion engine mounted on a vehicle having an idle stop function, and a power converter that rectifies and adjusts the voltage of the electric power generated by the generator. A lamp that supplies and consumes a part of the power converted by the power converter, a battery that supplies and stores the remainder of the power converted by the power converter, and the generator is in a power generation state. In response to the operation information whether or not there is, in the power generation state, the power converter and the lighting device are electrically connected and the battery and the lighting device are electrically non-conductive, and the non-power generation state A switching unit that electrically disconnects the power converter and the lighting device and electrically connects the battery and the lighting device, wherein the switching device Part , Based on the vehicle speed information of the vehicle speed sensor, said generator actuates the switching unit before stopping, the battery and a control unit for conducting the said lighting apparatus, the power converter, half-wave rectifier One of the half-wave rectification on the plus side or the minus side is supplied to the lamp, the other is supplied to the battery, the vehicle is a motorcycle, and the lamp is , Steady is obliged characterized headlight der Rukoto illuminate the front.

請求項１によれば、電力変換器で生じる半波整流のうち＋側と−側の一方をバッテリ、他方を灯火器に対して供給し、アイドルストップの状態になったときに、バッテリ側から灯火器に対して電力を供給するようにしたので、アイドルストップの有無によらず、灯火器に電力を供給し続けることができると共に、発電機や電力変換器の大型化を招く必要が無くなるので、小型車両に対して好適である。 According to the first aspect, in the half-wave rectification generated in the power converter, one of the + side and the − side is supplied to the battery, and the other is supplied to the lighting device . Since power is supplied to the lamp, it is possible to continue supplying power to the lamp regardless of whether there is an idle stop, and there is no need to increase the size of the generator or power converter. Suitable for small vehicles.

また、請求項１に係る発明では、半波整流式の電力変換器を採用した。入手容易で、安価な単相半波整流オープン式レギュレータが採用可能であり、電力変換器のコストダウンと小型化とを達成することができる。 The invention according to claim 1 employs a half-wave rectification type power converter. An easily available and inexpensive single-phase half-wave rectifier open type regulator can be adopted, and the cost reduction and miniaturization of the power converter can be achieved.

加えて、単相半波整流オープン式レギュレータは、単相全波整流ショート式レギュレータや３相全波整流ショート式レギュレータに比較して、フリクションロス（摩擦損失）が少ない低発電フリクションである利点を有する。すなわち、単相半波整流オープン式レギュレータを使用することで、内燃機関側にかかる負荷が軽減され、車両燃費において有利になる。   In addition, the single-phase half-wave rectification open regulator has the advantage of low power generation friction with less friction loss (friction loss) compared to single-phase full-wave rectification short regulator and three-phase full-wave rectification short regulator. Have. That is, by using the single-phase half-wave rectifying open regulator, the load on the internal combustion engine side is reduced, which is advantageous in terms of vehicle fuel consumption.

本発明を実施するための最良の形態を添付図に基づいて以下に説明する。
図１は本発明に係る車両の電気装置の基本構成図であり、車両の電気装置１０は、車両に搭載されている内燃機関１１により駆動されて発電する交流発電機１２と、この交流発電機１２で発生した電力を整流し電圧調整する電力変換器１３と、この電力変換器１３で変換された電力の一部が供給されて消費する電気負荷１４と、電力変換器１３で変換された電力の残部が供給されて蓄えるバッテリ１５と、交流発電機１２が発電状態であるか否かの運転情報を受けて、発電状態であるときには電力変換器１３と電気負荷１４とを電気的に導通させると共にバッテリ１５と電気負荷１４とは電気的に非導通とし、非発電状態であるときには電力変換器１３と電気負荷１４とを電気的に非導通にすると共にバッテリ１５と電気負荷１４とは電気的に導通させる切替部２０と、を備えている。 The best mode for carrying out the present invention will be described below with reference to the accompanying drawings.
FIG. 1 is a basic configuration diagram of an electric device for a vehicle according to the present invention. An electric device 10 for a vehicle is driven by an internal combustion engine 11 mounted on the vehicle and generates an AC generator 12 and the AC generator. 12, a power converter 13 that rectifies and adjusts the voltage of the power generated at 12, an electric load 14 that is supplied with and consumes a part of the power converted by the power converter 13, and the power that is converted by the power converter 13 The battery 15 is supplied and stored and the operation information indicating whether or not the AC generator 12 is in the power generation state, and when it is in the power generation state, the power converter 13 and the electric load 14 are electrically connected. At the same time, the battery 15 and the electrical load 14 are electrically disconnected, and when the power generation state is not established, the power converter 13 and the electrical load 14 are electrically disconnected and the battery 15 and the electrical load 14 are electrically disconnected. It includes a switching unit 20, a to conduct.

電力変換器１３は、一般にレギュレータ／レクチファイヤと呼ばれ、交流を直流に整流する作用と電圧を調整する作用とを発揮する。本実施例では、構造が最も簡単である半波整流部で構成されている。詳しい作用は図２で説明する。
電気負荷１４は、灯火器等で構成され、例えばヘッドライト（前照灯）であり、自動二輪車等ではヘッドライトは常時点灯が義務づけられている。 The power converter 13 is generally called a regulator / rectifier, and exhibits an action of rectifying an alternating current into a direct current and an action of adjusting a voltage. In this embodiment, the half-wave rectification unit having the simplest structure is used. The detailed operation will be described with reference to FIG.
The electric load 14 is composed of a lighting device or the like, and is, for example, a headlight (headlight). In a motorcycle or the like, the headlight is always required to be lit.

切替部２０は、例えば、Ａ接点２１がバッテリ１５に接続され、Ｂ接点２２が電力変換器１３の出力線に接続されているリレー２３と、このリレー２３を運転情報に基づいて制御する制御部２４とからなる。   The switching unit 20 includes, for example, a relay 23 in which the A contact 21 is connected to the battery 15 and the B contact 22 is connected to the output line of the power converter 13, and a control unit that controls the relay 23 based on operation information. 24.

図２は電力変換器の出力波形図であり、交流発電機から供給された交流電流のうち、＋（プラス）成分を充電に供し、−（マイナス）成分を電気負荷へ供給する作用を発揮する。正弦波を上半分だけ充電に充てるため、半波整流と呼ぶ。   FIG. 2 is an output waveform diagram of the power converter, and demonstrates the action of supplying the + (plus) component to the charge and supplying the − (minus) component to the electric load in the AC current supplied from the AC generator. . This is called half-wave rectification because only the upper half of the sine wave is used for charging.

以上の構成からなる車両の電気装置の作用を次に説明する。
図３は発電状態における作用説明図であり、内燃機関１１が運転状態（○印）にあると交流発電機１２は発電する。発電した電力は、電力変換器１３で処理され（図２参照）、矢印（１）と矢印（２）の流れが交互に発生する。つまり、図２に示す半波整流の＋側の電力はＡ接点２１に印可され、−側の電力はＢ接点２２に印可される。矢印（１）の電流でバッテリ１５は充電され、矢印（２）の電流で、電気負荷１４に給電される。矢印（１）、（２）は微少時間で切り換えられるため、ほぼ連続的に充電と給電が行われる。 Next, the operation of the electric device for a vehicle having the above configuration will be described.
FIG. 3 is a diagram for explaining the operation in the power generation state. When the internal combustion engine 11 is in the operating state (marked with a circle), the AC generator 12 generates power. The generated power is processed by the power converter 13 (see FIG. 2), and the flow of arrows (1) and arrows (2) occurs alternately. That is, the + side power of the half-wave rectification shown in FIG. 2 is applied to the A contact 21, and the − side power is applied to the B contact 22. The battery 15 is charged with the current indicated by the arrow (1), and the electric load 14 is supplied with the current indicated by the arrow (2). Since the arrows (1) and (2) are switched in a very short time, charging and feeding are performed almost continuously.

車両が信号待ちに入ると、アイドルストップモードに入る。車両がアイドルストップ状態にあるか否かは、図示しない車速センサ等の情報に基づき、制御部２４で判断される。交流発電機１２は発電状態から非発電状態に変わる。このようなモード切替えに際し、制御部２４は、交流発電機１２が停止する前に、リレー２３を作動させて、スイッチをＡ接点２１に切替える（矢印（３））。以降の作動を次図で説明する。   When the vehicle enters the signal waiting mode, it enters the idle stop mode. Whether or not the vehicle is in an idle stop state is determined by the control unit 24 based on information from a vehicle speed sensor or the like (not shown). The AC generator 12 changes from the power generation state to the non-power generation state. In such mode switching, the control unit 24 operates the relay 23 to switch the switch to the A contact 21 before the AC generator 12 stops (arrow (3)). The subsequent operation will be described with reference to the following figure.

図４は非発電状態における作用説明図であり、Ａ接点２１がオンになったため、矢印（４）、（５）のように、バッテリ１５から電気負荷１４へ給電される。電気負荷１４がヘッドライトであれば、アイドルストップ中であっても点灯させることができる。アイドルストップモードが解除され、内燃機関１１が始動すれば、図３に示すように、充電が再開され、電力変換器１３による電気負荷１４への給電が再開される。   FIG. 4 is an explanatory diagram of the operation in the non-power generation state. Since the A contact 21 is turned on, power is supplied from the battery 15 to the electric load 14 as indicated by arrows (4) and (5). If the electrical load 14 is a headlight, it can be lit even during idle stop. When the idling stop mode is canceled and the internal combustion engine 11 is started, as shown in FIG. 3, charging is resumed, and power supply to the electric load 14 by the power converter 13 is resumed.

次にアイドルストップ中は電気負荷に給電が行われない例を比較例とし、この比較例と本発明に係る実施例とを比較検討する。
図５は比較例と実施例とを掲載した図であり、（ａ）に示す比較例での電気装置１００は、車両に搭載されている内燃機関１１１により駆動されて発電する交流発電機１１２と、この交流発電機１１２で発生した電力を整流し電圧調整する電力変換器１１３と、この電力変換器１３で変換された電力の一部が供給されて消費する電気負荷１１４と、電力変換器１３で変換された電力の残部が供給されて蓄えるバッテリ１１５とからなる。 Next, an example in which power is not supplied to the electric load during idle stop will be used as a comparative example, and the comparative example and the example according to the present invention will be compared.
FIG. 5 is a diagram listing comparative examples and examples. An electrical device 100 in the comparative example shown in FIG. 5A includes an AC generator 112 that generates power by being driven by an internal combustion engine 111 mounted on a vehicle. The power converter 113 that rectifies and adjusts the voltage of the power generated by the AC generator 112, the electric load 114 that is supplied with and consumes part of the power converted by the power converter 13, and the power converter 13 The battery 115 is supplied with and stores the remainder of the electric power converted in (1).

交流発電機１１２が発電状態にあるときには、電気負荷１１４とバッテリ１１５に電力が供給され続ける。電気負荷１１４がヘッドライトであれば、ヘッドライトが点灯し続ける。一方、アイドルストップ中は交流発電機１１２が非発電状態になるため、電気負荷１１４とバッテリ１１５に給電が行われない。そのため、ヘッドライトは消灯する。   When the AC generator 112 is in the power generation state, power is continuously supplied to the electric load 114 and the battery 115. If the electrical load 114 is a headlight, the headlight continues to be lit. On the other hand, since the AC generator 112 is in a non-power generation state during idle stop, power is not supplied to the electric load 114 and the battery 115. Therefore, the headlight is turned off.

これに対して、（ｂ）に示す実施例では制御部２４でＡ接点２１にスイッチを切替えさせて、バッテリ１５で電気負荷１４へ給電するため、ヘッドライトは連続点灯が維持される。つまり、（ｂ）に示す実施例においては、アイドルストップ中に拘わらず、ヘッドライト等の電気負荷に対して電力を供給し続けることができる。   On the other hand, in the embodiment shown in (b), the control unit 24 switches the switch to the A contact 21 and supplies power to the electric load 14 with the battery 15, so that the headlight is continuously lit. That is, in the embodiment shown in (b), it is possible to continue supplying power to an electric load such as a headlight regardless of idling stop.

本発明における電気装置の効果をさらに詳細に説明するために、図６に示すような別の比較例を示す。
図６は別の比較例を示す図であり、この図に示す構成では、電力変換器１１３の出力側に電気負荷１１４及びバッテリ１１５が接続されている。該構成によれば、発電機１１２の運転中には、そこで発電された電力が電力変換器１１３を介して電気負荷１１４及びバッテリ１１５に供給され、一方、車両がアイドルストップ状態では、バッテリ１１５からの電力が電気負荷１１４に供給されるので、アイドルストップ状態に関らず電気負荷１１４に対して電力を供給し続けることができる。 In order to explain the effect of the electric device according to the present invention in more detail, another comparative example as shown in FIG. 6 is shown.
FIG. 6 is a diagram showing another comparative example. In the configuration shown in this figure, an electric load 114 and a battery 115 are connected to the output side of the power converter 113. According to this configuration, during operation of the generator 112, the electric power generated there is supplied to the electric load 114 and the battery 115 via the power converter 113, while the vehicle 115 is in the idle stop state from the battery 115. Is supplied to the electric load 114, the electric power can be continuously supplied to the electric load 114 regardless of the idle stop state.

しかし、図６に示す構成では、電力変換器１１３の出力側に電気負荷１１４と共にバッテリ１１５が接続されているので、これらの負荷に対して供給すべき電力は必然的に大きくなり、発電機１１２の大型化及び電力変換器１１３の大容量化を招き、重量面やコストの面において課題が生じることがある。   However, in the configuration shown in FIG. 6, since the battery 115 is connected to the output side of the power converter 113 together with the electric load 114, the power to be supplied to these loads inevitably increases, and the generator 112 Increase in the size of the power converter 113 and the capacity of the power converter 113 may cause problems in terms of weight and cost.

これに対して、本発明の構成では、電力変換器１１３で生じる半波整流のうち＋側をバッテリ、−側を電気負荷に対して供給し、アイドルストップの状態になったときに、バッテリ側から電気負荷に対して電力を供給するようにしたので、アイドルストップの有無によらず、電気負荷１１４に電力を供給し続けることができると共に、発電機１１２や電力変換器１１３の大型化を招く必要が無くなるので、小型車両に対して好適である。   On the other hand, in the configuration of the present invention, in the half-wave rectification generated in the power converter 113, when the positive side is supplied to the battery and the negative side is supplied to the electric load, the battery side Since the electric power is supplied from the electric load to the electric load, electric power can be continuously supplied to the electric load 114 regardless of the idling stop, and the generator 112 and the power converter 113 are increased in size. Since it is not necessary, it is suitable for small vehicles.

そして、（ａ）と（ｂ）から明らかなように、（ａ）に切替部２０を付加するだけで（ｂ）を得ることができる。（ａ）に示す電気装置１００は、小型二輪車に広く採用されている安価な装置である。このような電気装置１００に切替部２０を加えるだけで（ｂ）に示す電気装置１０を得ることができるから、本発明の電気装置１０は、極めて容易に且つ安価に製造することができる。   As is clear from (a) and (b), (b) can be obtained by adding the switching unit 20 to (a). An electric device 100 shown in (a) is an inexpensive device widely adopted in small motorcycles. Since the electric device 10 shown in (b) can be obtained simply by adding the switching unit 20 to such an electric device 100, the electric device 10 of the present invention can be manufactured very easily and inexpensively.

尚、本発明の電気装置は、小型二輪車に好適であるが、中型自動二輪車、大型自動二輪車に適用することは可能である。 The electrical device of the present invention is suitable for small motorcycles, it is possible to apply Medium motorcycle, large motorcycles.

本発明の電気装置は、小型二輪車に好適である。   The electric device of the present invention is suitable for a small motorcycle.

本発明に係る車両の電気装置の基本構成図である。1 is a basic configuration diagram of an electric device for a vehicle according to the present invention. 電力変換器の出力波形図である。It is an output waveform figure of a power converter. 発電状態における作用説明図である。It is action explanatory drawing in a power generation state. 非発電状態における作用説明図である。It is action explanatory drawing in a non-power generation state. 比較例と実施例とを掲載した図である。It is the figure which published the comparative example and the Example. 別の比較例を掲載した図である。It is the figure which published another comparative example.

符号の説明Explanation of symbols

１０…車両の電気装置、１１…内燃機関、１２…発電機（交流発電機）、１３…電力変換器、１４…電気負荷、１５…バッテリ、２０…切替部、２１…Ａ接点、２２…Ｂ接点、２３…リレー、２４…制御部。   DESCRIPTION OF SYMBOLS 10 ... Electric apparatus of a vehicle, 11 ... Internal combustion engine, 12 ... Generator (alternator), 13 ... Power converter, 14 ... Electric load, 15 ... Battery, 20 ... Switching part, 21 ... A contact, 22 ... B Contact, 23... Relay, 24.

Claims (1)

アイドルストップ機能を有する車両に搭載されている内燃機関により駆動されて発電する発電機と、この発電機で発生した電力を整流し電圧調整する電力変換器と、この電力変換器で変換された電力の一部が供給されて消費する灯火器と、前記電力変換器で変換された電力の残部が供給されて蓄えるバッテリと、前記発電機が発電状態であるか否かの運転情報を受けて、発電状態であるときには前記電力変換器と前記灯火器とを電気的に導通させると共に前記バッテリと前記灯火器とは電気的に非導通とし、非発電状態であるときには前記電力変換器と前記灯火器とを電気的に非導通にすると共に前記バッテリと前記灯火器とは電気的に導通させる切替部と、を備える車両の電気装置であって、
前記切替部は、車速センサの車速情報に基づき、前記発電機が停止する前に前記切替部を作動させて、前記バッテリと前記灯火器とを導通させる制御部を備え、
前記電力変換器は、半波整流部にて構成され、前記半波整流のうちプラス側或いはマイナス側の一方は前記灯火器に供給され、他方は前記バッテリに対して供給され、
前記車両は、自動二輪車であって、
前記灯火器は、常時点灯が義務づけられて前方を照らすヘッドライトであることを特徴とする車両の電気装置。 A generator that generates power by being driven by an internal combustion engine mounted on a vehicle having an idle stop function, a power converter that rectifies and adjusts the voltage of power generated by the generator, and power that is converted by the power converter A lamp that is supplied and consumed in part, a battery that supplies and stores the remainder of the power converted by the power converter, and operating information as to whether or not the generator is in a power generation state, When the power generation state is established, the power converter and the lighting device are electrically connected, and the battery and the lighting device are electrically disconnected. When the power generation state is not generated, the power converter and the lighting device are electrically connected. And a switching unit that electrically disconnects the battery and the lighting device, and an electric device for a vehicle comprising:
The switching unit includes a control unit that operates the switching unit before the generator stops based on vehicle speed information of a vehicle speed sensor, and conducts the battery and the lamp ,
The power converter is constituted by a half-wave rectification unit, one of the plus side or minus side of the half-wave rectification is supplied to the lamp, the other is supplied to the battery,
The vehicle is a motorcycle,
The lighting apparatus, electric device for a vehicle according to claim headlight der Rukoto illuminate forward Steady is mandatory.
JP2008051395A 2008-02-29 2008-02-29 Vehicle electrical equipment Expired - Fee Related JP5270931B2 (en)

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