JP5598216B2 - Vehicle power supply control device - Google Patents

Vehicle power supply control device Download PDF

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JP5598216B2
JP5598216B2 JP2010219750A JP2010219750A JP5598216B2 JP 5598216 B2 JP5598216 B2 JP 5598216B2 JP 2010219750 A JP2010219750 A JP 2010219750A JP 2010219750 A JP2010219750 A JP 2010219750A JP 5598216 B2 JP5598216 B2 JP 5598216B2
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vehicle
solar cell
battery
power
power supply
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JP2012071788A (en
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政善 井本
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Sumitomo Wiring Systems Ltd
AutoNetworks Technologies Ltd
Sumitomo Electric Industries Ltd
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Sumitomo Wiring Systems Ltd
AutoNetworks Technologies Ltd
Sumitomo Electric Industries 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
    • Y02E10/00—Energy generation through renewable energy sources
    • Y02E10/50—Photovoltaic [PV] energy
    • 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
    • Y02T10/7072—Electromobility specific charging systems or methods for batteries, ultracapacitors, supercapacitors or double-layer capacitors

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  • Charge And Discharge Circuits For Batteries Or The Like (AREA)
  • Secondary Cells (AREA)
  • Electric Propulsion And Braking For Vehicles (AREA)
  • Photovoltaic Devices (AREA)

Description

本発明は、電力を負荷群へ供給する車載バッテリと、発電した電力により車載バッテリを充電する太陽電池とを備える電源装置の充放電を制御する車両用電源制御装置に関するものである。   The present invention relates to a vehicle power supply control device that controls charging / discharging of a power supply device that includes a vehicle-mounted battery that supplies power to a load group and a solar cell that charges the vehicle-mounted battery with generated power.

エンジン駆動車の車両用電源では、エンジンに連動するオルタネータ（発電機、交流発電機）が発電した電力を、各車載負荷に供給すると共に、バッテリに充電する。オルタネータが発電した電力では不足するとき、又はエンジンが停止しているときには、バッテリから各負荷に電力を供給する。
ハイブリッド車の車両用電源では、１例として、エンジンに連動する発電機が発電した電力、及び駆動用モータの回生電力を駆動用の高圧バッテリに充電する。高圧バッテリからの電力は、降圧されて各車載負荷に供給されると共に、（低圧）バッテリに充電される。 In a vehicle power source for an engine-driven vehicle, electric power generated by an alternator (a generator or an AC generator) linked to the engine is supplied to each on-board load and the battery is charged. When the power generated by the alternator is insufficient or when the engine is stopped, power is supplied from the battery to each load.
In a vehicle power source for a hybrid vehicle, as an example, power generated by a generator linked to an engine and regenerative power of a driving motor are charged in a driving high voltage battery. The electric power from the high voltage battery is stepped down and supplied to each in-vehicle load, and the (low voltage) battery is charged.

電気自動車の車両用電源では、外部電源からの電力及び駆動用モータの回生電力を駆動用の高圧バッテリに充電する。高圧バッテリからの電力は、降圧されて各車載負荷に供給されると共に、（低圧）バッテリに充電される。
近年、省燃費に繋がる車両消費電力の低減が課題となっている。太陽電池が発電した電力をバッテリに充電し、負荷に供給してバッテリを補助し、省エネルギー効果を上げようとする車両用電源が提案され実用化されつつある。 In a vehicle power source for an electric vehicle, a high voltage battery for driving is charged with power from an external power source and regenerative power of a driving motor. The electric power from the high voltage battery is stepped down and supplied to each in-vehicle load, and the (low voltage) battery is charged.
In recent years, reduction of vehicle power consumption leading to fuel saving has been an issue. Vehicle power sources are being proposed and put into practical use to charge a battery with electric power generated by a solar cell and supply it to a load to assist the battery and increase the energy saving effect.

特許文献１には、エンジン停止時にも電気を消費する常時負荷を備えた作業車両のバッテリ上がりを防止することができる作業車両が開示されている。常時負荷への電力供給（いわゆる暗電流供給）に太陽電池を用いる。また、常時負荷による消費分を除いた余剰電力は、補助バッテリに充電する。   Patent Document 1 discloses a work vehicle that can prevent the battery of the work vehicle having a constant load that consumes electricity even when the engine is stopped. A solar cell is used for power supply to the load at all times (so-called dark current supply). Further, the surplus power excluding the consumption due to the constant load is charged to the auxiliary battery.

特許文献２には、自動車用ドアミラーの本体外郭に設けられた太陽電池と、該太陽電池からの出力により駆動するモータとを備えた自動車用換気装置が開示されている。ドアミラーの車体取付け部の車内側に設置され、前記モータの駆動によって回転する換気ファンと、該換気ファンの吸入側又は排気側において車内外に通じた通気開口手段とを有している。   Patent Document 2 discloses a vehicle ventilator including a solar cell provided on the outer body of a vehicle door mirror and a motor driven by an output from the solar cell. It has a ventilation fan that is installed inside the vehicle body mounting portion of the door mirror and rotates by driving of the motor, and ventilation opening means that communicates with the inside and outside of the vehicle on the suction side or exhaust side of the ventilation fan.

特開２００２−３０９６２２号公報JP 2002-309622 A 実開平６−７１２２４号公報Japanese Utility Model Publication No. 6-71224

上述したような車両用電源では、太陽電池が発電した電力をバッテリに充電する場合、例えば、バッテリが満充電状態であるにも関わらず過充電を続けると、バッテリの劣化が進むというような問題がある。その為、従来は、充電制御を行う為の定電流充電回路と充電停止回路とを用いて、過充電を防止する等の策が講じられている。   In the vehicle power source as described above, when charging the battery with the power generated by the solar battery, for example, if the battery continues to be overcharged even though the battery is in a fully charged state, the battery will deteriorate. There is. Therefore, conventionally, measures such as preventing overcharging by using a constant current charging circuit and a charging stop circuit for performing charging control have been taken.

本発明は、上述したような事情に鑑みてなされたものであり、複雑な充電制御回路を用いることなく、バッテリへの過充電を防止し、太陽電池が発電した電力を有効に活用することができる車両用電源制御装置を提供することを目的とする。   The present invention has been made in view of the circumstances as described above, and without using a complicated charge control circuit, it is possible to prevent overcharging of the battery and effectively utilize the power generated by the solar cell. An object of the present invention is to provide a vehicle power supply control device.

第１発明に係る車両用電源制御装置は、電力を負荷群へ供給する車載バッテリと、発電した電力により該車載バッテリを充電する太陽電池装置とを備える電源装置の充放電を制御し、前記負荷群は、駐車中に常時作動して電力を消費する複数の負荷を含む車両用電源制御装置において、前記太陽電池装置は、前記駐車中に常時作動して電力を消費する複数の負荷の消費電力の合計以下の電力を出力する第１太陽電池と、車両の所定機器に電力を供給する第２太陽電池と、アクセサリスイッチのオン／オフを判定する判定手段と、該判定手段の判定結果がオフであるときは、前記第２太陽電池を前記車載バッテリから切離す切離し手段とを備えることを特徴とする。 A power supply control device for a vehicle according to a first aspect of the present invention controls charge / discharge of a power supply device including an in-vehicle battery that supplies electric power to a load group and a solar cell device that charges the in-vehicle battery with the generated electric power, and the load The group is a vehicle power supply control device that includes a plurality of loads that constantly operate during parking and consumes power, wherein the solar cell device operates at all times during parking and consumes power of a plurality of loads that consume power A first solar cell that outputs power equal to or less than the sum, a second solar cell that supplies power to a predetermined device of the vehicle, a determination unit that determines whether the accessory switch is on / off, and a determination result of the determination unit is off When it is, it is provided with the isolation | separation means which isolate | separates a said 2nd solar cell from the said vehicle-mounted battery, It is characterized by the above-mentioned.

この車両用電源制御装置では、車載バッテリが、電力を負荷群へ供給し、太陽電池装置が、発電した電力により車載バッテリを充電する電源装置の充放電を制御する。負荷群は、駐車中に常時作動して電力を消費する複数の負荷を含んでいる。太陽電池装置は、第１太陽電池が、駐車中に常時作動して電力を消費する複数の負荷の消費電力の合計以下の電力を出力し、第２太陽電池が、車両の所定機器に電力を供給する。判定手段が、アクセサリスイッチのオン／オフを判定し、判定手段の判定結果がオフであるときは、切離し手段が、第２太陽電池を車載バッテリから切離す。 In this vehicle power supply control device, the vehicle-mounted battery supplies power to the load group, and the solar cell device controls charging / discharging of the power supply device that charges the vehicle-mounted battery with the generated power. The load group includes a plurality of loads that always operate during parking and consume electric power. The solar cell device outputs power equal to or less than the sum of power consumption of a plurality of loads in which the first solar cell is always operated during parking and consumes power, and the second solar cell supplies power to a predetermined device of the vehicle. Supply. The determining means determines whether the accessory switch is on / off, and when the determination result of the determining means is off, the disconnecting means disconnects the second solar cell from the in-vehicle battery.

第２発明に係る車両用電源制御装置は、前記切離し手段は、前記第１太陽電池及び第２太陽電池を前記車載バッテリに接続する第１供給状態と、前記第１太陽電池を前記車載バッテリに接続し、前記第２太陽電池を前記車載バッテリから切離す第２供給状態とを有していることを特徴とする。   In the vehicular power supply control device according to a second aspect of the present invention, the disconnecting means includes a first supply state in which the first solar cell and the second solar cell are connected to the in-vehicle battery, and the first solar cell to the in-vehicle battery. And a second supply state in which the second solar cell is disconnected from the in-vehicle battery.

この車両用電源制御装置では、切離し手段は、第１供給状態で第１太陽電池及び第２太陽電池を車載バッテリに接続し、第２供給状態で第１太陽電池を車載バッテリに接続し、第２太陽電池を車載バッテリから切離す。   In this vehicle power supply control device, the disconnecting means connects the first solar cell and the second solar cell to the vehicle-mounted battery in the first supply state, connects the first solar cell to the vehicle-mounted battery in the second supply state, 2 Disconnect the solar cell from the vehicle battery.

第３発明に係る車両用電源制御装置は、前記第１太陽電池及び第２太陽電池は、同一の透光性基材に固着され、それぞれの出力端子は、同一の端子ボックスに接続されていることを特徴とする。   In the vehicle power supply control device according to a third aspect of the invention, the first solar cell and the second solar cell are fixed to the same translucent substrate, and the respective output terminals are connected to the same terminal box. It is characterized by that.

この車両用電源制御装置では、第１太陽電池及び第２太陽電池は、同一の透光性基材に固着され、それぞれの出力端子は、同一の端子ボックスに接続されている。   In this vehicle power supply control device, the first solar cell and the second solar cell are fixed to the same translucent substrate, and the respective output terminals are connected to the same terminal box.

第４発明に係る車両用電源制御装置は、前記端子ボックスは、前記第１太陽電池及び第２太陽電池の裏面部に一体的に設置され、前記切離し手段は、前記端子ボックス内に設置されていることを特徴とする。   In the vehicle power supply control device according to a fourth aspect of the present invention, the terminal box is integrally installed on the back surfaces of the first solar cell and the second solar cell, and the separating means is installed in the terminal box. It is characterized by being.

この車両用電源制御装置では、端子ボックスは、第１太陽電池及び第２太陽電池の裏面部に一体的に設置され、切離し手段は、端子ボックス内に設置されている。   In this vehicle power supply control device, the terminal box is integrally installed on the back surface portions of the first solar cell and the second solar cell, and the separating means is installed in the terminal box.

本発明に係る車両用電源制御装置によれば、複雑な充電制御回路を用いることなく、バッテリへの過充電を防止し、太陽電池が発電した電力を有効に活用することができる車両用電源制御装置を実現することができる。   According to the vehicle power supply control device of the present invention, the vehicle power supply control that can prevent overcharging of the battery and effectively use the power generated by the solar cell without using a complicated charge control circuit. An apparatus can be realized.

本発明に係る車両用電源制御装置の実施の形態の概略構成を模式的に示す平面図である。1 is a plan view schematically showing a schematic configuration of an embodiment of a vehicle power supply control device according to the present invention. 図１に示す車両用電源制御装置の構成例を更に詳細に示すブロック図である。It is a block diagram which shows the example of a structure of the power supply control device for vehicles shown in FIG. 1 further in detail. 本発明に係る車両用電源制御装置の動作の例を示すブロック図である。It is a block diagram which shows the example of operation | movement of the vehicle power supply control apparatus which concerns on this invention. 本発明に係る車両用電源制御装置の動作を説明する為の説明図である。It is explanatory drawing for demonstrating operation | movement of the vehicle power supply control apparatus which concerns on this invention.

以下に、本発明をその実施の形態を示す図面に基づき説明する。
図１は、本発明に係る車両用電源制御装置の実施の形態の概略構成を模式的に示す平面図である。
この車両用電源制御装置は、ハイブリッド車に適用されるものであり、車両の屋根部２３に太陽電池１が設置されている。太陽電池１は、駐車中に車載負荷が常時作動して消費する暗電流以下の電流を出力する暗電流供給部（第１太陽電池）２と、一般の車載負荷（換気装置等）に電力を供給する一般負荷供給部（第２太陽電池）３とを備えている。 Hereinafter, the present invention will be described with reference to the drawings illustrating embodiments thereof.
FIG. 1 is a plan view schematically showing a schematic configuration of an embodiment of a vehicle power supply control device according to the present invention.
This vehicle power supply control device is applied to a hybrid vehicle, and a solar cell 1 is installed on a roof portion 23 of the vehicle. The solar cell 1 supplies power to the dark current supply unit (first solar cell) 2 that outputs a current equal to or less than the dark current consumed by the on-board load that is always operated during parking, and a general on-board load (such as a ventilator). A general load supply unit (second solar cell) 3 is provided.

暗電流供給部２及び一般負荷供給部３は、同一の透光性基材に固着され、それぞれ端子ボックス１０内の切替部４に接続されている。端子ボックス１０は、車両の屋根部２３の裏側に当たる天井部２４に固定されている。
切替部４は、車両の運転席付近にイグニッションスイッチと共に設けられたアクセサリスイッチ７から、そのオン／オフ状態を示す信号を与えられる。切替部４は、暗電流供給部２及び一般負荷供給部３からの電力を、ブロアモータ電源切替リレー５経由でブロアモータ（所定機器）６、又はバッテリ９へ切替え供給する。尚、ブロアモータ電源切替リレー５及びブロアモータ６に代えて、他の電源切替リレー、及び車両の各部を冷却する冷却機器を設けることも可能である。
バッテリ９からの電力は、また、分配部８及びブロアモータ電源切替リレー５経由でブロアモータ６へ供給される。 The dark current supply unit 2 and the general load supply unit 3 are fixed to the same translucent base material and are connected to the switching unit 4 in the terminal box 10 respectively. The terminal box 10 is fixed to a ceiling portion 24 that hits the back side of the roof portion 23 of the vehicle.
The switching unit 4 is given a signal indicating its on / off state from an accessory switch 7 provided with an ignition switch near the driver's seat of the vehicle. The switching unit 4 switches and supplies the power from the dark current supply unit 2 and the general load supply unit 3 to the blower motor (predetermined device) 6 or the battery 9 via the blower motor power supply switching relay 5. Instead of the blower motor power switching relay 5 and the blower motor 6, it is possible to provide other power switching relays and a cooling device for cooling each part of the vehicle.
The electric power from the battery 9 is also supplied to the blower motor 6 via the distribution unit 8 and the blower motor power supply switching relay 5.

図２は、図１に示す車両用電源制御装置の構成例を更に詳細に示すブロック図である。
この車両用電源制御装置は、上述したようにハイブリッド車に適用されるものであり、ここでは図示していないが、エンジンに連動する発電機が発電した電力が、駆動用の高圧バッテリに充電される。高圧バッテリに充電された電力は、ＤＣ／ＤＣコンバータ１５により、２００Ｖから１３．５Ｖに降圧されて、分配部８経由で車載負荷群１９〜２２に供給され、余剰分はバッテリ（車載バッテリ）９に充電される。 FIG. 2 is a block diagram showing in more detail the configuration example of the vehicle power supply control device shown in FIG.
This vehicle power supply control device is applied to a hybrid vehicle as described above, and although not shown here, the electric power generated by the generator linked to the engine is charged to the driving high-voltage battery. The The electric power charged in the high-voltage battery is stepped down from 200 V to 13.5 V by the DC / DC converter 15 and supplied to the in-vehicle load groups 19 to 22 through the distribution unit 8, and the surplus is stored in the battery (in-vehicle battery) 9. Is charged.

太陽電池１の一般負荷供給部３が発電した電力は、車両からの放射ノイズを抑制する為のノイズフィルタ１４、逆流防止用のダイオード１２、供給切替リレー（切離し手段）１３、分配部８経由で車載負荷群１９〜２２に供給され、余剰分はヒューズ１６を通じて、バッテリ９に充電される。また、一般負荷供給部３が発電した電力は、ブロアモータ電源切替リレー５を通じてブロアモータ６へ供給される。
太陽電池１の暗電流供給部２が発電した電力は、逆流防止用のダイオード１１及び分配部８を通じて車載負荷群１９〜２２へ与えられると共に、余剰分はヒューズ１６を通じてバッテリ（車載バッテリ）９に充電される。 The electric power generated by the general load supply unit 3 of the solar cell 1 is transmitted via a noise filter 14 for suppressing radiation noise from the vehicle, a diode 12 for preventing backflow, a supply switching relay (separating means) 13, and a distribution unit 8. It is supplied to the on-vehicle load groups 19 to 22, and the surplus is charged to the battery 9 through the fuse 16. The electric power generated by the general load supply unit 3 is supplied to the blower motor 6 through the blower motor power supply switching relay 5.
The power generated by the dark current supply unit 2 of the solar cell 1 is supplied to the in-vehicle load groups 19 to 22 through the backflow prevention diode 11 and the distribution unit 8, and the surplus is supplied to the battery (in-vehicle battery) 9 through the fuse 16. Charged.

バッテリ９からの電力は、ヒューズ１６を通じて出力され、ヒューズ１７を通じて、ＤＣ／ＤＣコンバータ１５に制御電力として与えられ、分配部８を通じて車載負荷群１９〜２２へ与えられる。車載負荷群１９〜２２には、常時電流（暗電流）を消費する負荷も含まれている。バッテリ９からの電力は、また、分配部８内のヒューズ１８とブロアモータ電源切替リレー５とを経由してブロアモータ６に与えられる。   The electric power from the battery 9 is output through the fuse 16, is supplied as control power to the DC / DC converter 15 through the fuse 17, and is supplied to the vehicle load groups 19 to 22 through the distribution unit 8. The in-vehicle load groups 19 to 22 include loads that constantly consume current (dark current). The electric power from the battery 9 is also supplied to the blower motor 6 via the fuse 18 in the distribution unit 8 and the blower motor power supply switching relay 5.

切替部（判定手段、切離し手段）４は、アクセサリスイッチ７から与えられた信号に基づき、そのオン／オフ状態を判定し、判定した結果に基づき、ブロアモータ電源切替リレー５及び供給切替リレー１３をそれぞれ切替え制御する。
上述したダイオード１１，１２、ノイズフィルタ１４、切替部４及び供給切替リレー１３は、車両の天井部２４に設けられた端子ボックス１０に収納されている。 The switching unit (determination unit, disconnection unit) 4 determines the on / off state based on a signal given from the accessory switch 7, and sets the blower motor power switching relay 5 and the supply switching relay 13 based on the determined result, respectively. Switching control is performed.
The diodes 11 and 12, the noise filter 14, the switching unit 4, and the supply switching relay 13 described above are housed in the terminal box 10 provided on the ceiling 24 of the vehicle.

太陽電池１の暗電流供給部２は、例えば、開放電圧２０Ｖ（バッテリ接続により１２Ｖになる）、定格出力２０ｍＡであり、一般負荷供給部３は、例えば、開放電圧２０Ｖ（バッテリ接続により１２Ｖになる）、定格出力５Ａである。ここで、暗電流供給部２の出力電流Ｉａは、搭載される車両の駐車中に車載負荷が常時作動して消費する暗電流値により決定される。この車両では、定常状態で約２０ｍＡの暗電流が消費される為、暗電流供給部２の出力電流Ｉａは２０ｍＡ以下に設定される。
尚、バッテリ電圧は略一定と見做して良いから、出力電流Ｉａ及び暗電流の関係は、出力電力及び暗電力（暗電流による電力）の関係と同じと見做すことができる。 The dark current supply unit 2 of the solar cell 1 has, for example, an open-circuit voltage of 20 V (12 V when battery is connected) and a rated output of 20 mA, and the general load supply unit 3 has an open-circuit voltage of 20 V (12 V when battery is connected), for example. ), Rated output 5A. Here, the output current Ia of the dark current supply unit 2 is determined by a dark current value that is consumed by the on-board load that is always operated during parking of the mounted vehicle. In this vehicle, since a dark current of about 20 mA is consumed in a steady state, the output current Ia of the dark current supply unit 2 is set to 20 mA or less.
Since the battery voltage may be regarded as substantially constant, the relationship between the output current Ia and the dark current can be regarded as the same as the relationship between the output power and the dark power (power due to the dark current).

暗電流供給部２の出力電流Ｉａは、図４に示すように、大き過ぎると、バッテリに充電される電流が増加する為、バッテリを過充電する虞が出て来る。しかし、図４に示すように、出力電流Ｉａが小さ過ぎては、暗電流の供給が間に合わず、バッテリから持ち出すことになる。即ち、日射が有る状態では、暗電流供給部２から暗電流を供給し、夜間及び雨天時等には、従来通りバッテリから供給するように設定し、太陽電池を搭載しない車両に比較し、バッテリの負担が半減するように設定している。   As shown in FIG. 4, if the output current Ia of the dark current supply unit 2 is too large, the current charged in the battery increases, so that the battery may be overcharged. However, as shown in FIG. 4, if the output current Ia is too small, the dark current cannot be supplied in time and is taken out of the battery. That is, in the state where there is solar radiation, the dark current is supplied from the dark current supply unit 2 and is set to be supplied from the battery as usual in the nighttime and rainy weather. Is set to halve the burden.

以下に、このような構成の車両用電源制御装置の動作を説明する。
切替部４は、車両が駐車中であり、アクセサリスイッチ７からオフ状態を示す信号を受けている場合、図２に示すように、供給切替リレー１３をオフにし、ブロアモータ電源切替リレー５をＢ端子側に接続する。
供給切替リレー１３をオフにすることにより、一般負荷供給部３は、バッテリ９から切離される。ブロアモータ電源切替リレー５をＢ端子側に接続することにより、ブロアモータ６は、図２の矢印で示すように、一般負荷供給部３のみから電源を供給される。 Below, operation | movement of the power supply control apparatus for vehicles of such a structure is demonstrated.
When the vehicle is parked and receives a signal indicating an off state from the accessory switch 7, the switching unit 4 turns off the supply switching relay 13 and connects the blower motor power switching relay 5 to the B terminal as shown in FIG. Connect to the side.
The general load supply unit 3 is disconnected from the battery 9 by turning off the supply switching relay 13. By connecting the blower motor power supply switching relay 5 to the B terminal side, the blower motor 6 is supplied with power only from the general load supply unit 3 as shown by the arrow in FIG.

日射が有る場合、図２の矢印で示すように、暗電流供給部２から分配部８を通じて、車載負荷群１９〜２２の常時電流（暗電流）を消費する負荷へ電源が供給され、その不足分はバッテリ９から供給される。夜間及び雨天時等で日射が無い場合は、バッテリ９から分配部８を通じて、車載負荷群１９〜２２の常時電流（暗電流）を消費する負荷へ電源が供給される。   When there is solar radiation, as shown by the arrow in FIG. 2, power is supplied from the dark current supply unit 2 to the load that consumes the constant current (dark current) of the in-vehicle load groups 19 to 22 through the distribution unit 8, and the shortage Minutes are supplied from the battery 9. When there is no solar radiation at night or in rainy weather, power is supplied from the battery 9 to the load that consumes the constant current (dark current) of the in-vehicle load groups 19 to 22 through the distribution unit 8.

切替部４は、車両が走行中又は停車中であり、アクセサリスイッチ７からオン状態を示す信号を受けている場合、図３に示すように、供給切替リレー１３をオンにし、ブロアモータ電源切替リレー５をＡ端子側に接続する。
供給切替リレー１３をオンにし、ブロアモータ電源切替リレー５をＡ端子側に接続することにより、一般負荷供給部３及び暗電流切替え供給部２は、図３の矢印で示すように、分配部８を通じて、車載負荷群１９〜２２及びブロアモータ６に電源を供給すると共に、余剰分をバッテリ（車載バッテリ）９に充電する。
尚、本実施の形態では、本発明に係る車両用電源制御装置をハイブリッド車に適用した例を説明したが、本発明に係る車両用電源制御装置は、エンジン駆動車及び電気自動車にも適用可能であることは言うまでもない。 When the vehicle is running or stopped and receives a signal indicating an ON state from the accessory switch 7, the switching unit 4 turns on the supply switching relay 13 and turns on the blower motor power switching relay 5 as shown in FIG. 3. To the A terminal side.
By turning on the supply switching relay 13 and connecting the blower motor power supply switching relay 5 to the A terminal side, the general load supply unit 3 and the dark current switching supply unit 2 pass through the distribution unit 8 as shown by arrows in FIG. In addition to supplying power to the in-vehicle load groups 19 to 22 and the blower motor 6, the battery (in-vehicle battery) 9 is charged with the surplus.
In this embodiment, the example in which the vehicle power supply control device according to the present invention is applied to a hybrid vehicle has been described. However, the vehicle power supply control device according to the present invention can also be applied to an engine-driven vehicle and an electric vehicle. Needless to say.

１ 太陽電池（太陽電池装置）
２ 暗電流供給部（第１太陽電池）
３ 一般負荷供給部（第２太陽電池）
４ 切替部（判定手段、切離し手段）
５ ブロアモータ電源切替リレー
６ ブロアモータ（所定機器）
７ アクセサリスイッチ
８ 分配部
９ バッテリ（車載バッテリ）
１０ 端子ボックス
１１，１２ ダイオード
１３ 供給切替リレー（切離し手段）
１４ ノイズフィルタ
１５ ＤＣ／ＤＣコンバータ
１９〜２２ 車載負荷（負荷）
２３ 屋根部
２４ 天井部 1 Solar cell (solar cell device)
2 Dark current supply unit (first solar cell)
3 General load supply unit (second solar cell)
4 switching part (determination means, separation means)
5 Blower motor power switching relay 6 Blower motor (predetermined equipment)
7 Accessory switch 8 Distribution unit 9 Battery (vehicle battery)
10 Terminal box 11, 12 Diode 13 Supply switching relay (detaching means)
14 Noise filter 15 DC / DC converter 19-22 In-vehicle load (load)
23 Roof 24 Ceiling

Claims (4)

電力を負荷群へ供給する車載バッテリと、発電した電力により該車載バッテリを充電する太陽電池装置とを備える電源装置の充放電を制御し、前記負荷群は、駐車中に常時作動して電力を消費する複数の負荷を含む車両用電源制御装置において、
前記太陽電池装置は、前記駐車中に常時作動して電力を消費する複数の負荷の消費電力の合計以下の電力を出力する第１太陽電池と、車両の所定機器に電力を供給する第２太陽電池と、アクセサリスイッチのオン／オフを判定する判定手段と、該判定手段の判定結果がオフであるときは、前記第２太陽電池を前記車載バッテリから切離す切離し手段とを備えることを特徴とする車両用電源制御装置。 The charging and discharging of a power supply device including an in-vehicle battery that supplies electric power to a load group and a solar cell device that charges the in-vehicle battery with the generated electric power is controlled. In a vehicle power supply control device including a plurality of loads to be consumed,
The solar cell device is a first solar cell that outputs power equal to or less than the total power consumption of a plurality of loads that operate constantly during parking and consumes power, and a second solar that supplies power to a predetermined device of the vehicle. A battery, a determination unit that determines whether the accessory switch is on / off, and a disconnecting unit that disconnects the second solar cell from the in-vehicle battery when the determination result of the determination unit is off. A vehicle power supply control device. 前記切離し手段は、前記第１太陽電池及び第２太陽電池を前記車載バッテリに接続する第１供給状態と、前記第１太陽電池を前記車載バッテリに接続し、前記第２太陽電池を前記車載バッテリから切離す第２供給状態とを有している請求項１記載の車両用電源制御装置。   The disconnecting means connects the first solar cell and the second solar cell to the vehicle battery, connects the first solar cell to the vehicle battery, and connects the second solar cell to the vehicle battery. The vehicular power supply control device according to claim 1, further comprising a second supply state separated from the vehicle. 前記第１太陽電池及び第２太陽電池は、同一の透光性基材に固着され、それぞれの出力端子は、同一の端子ボックスに接続されている請求項１又は２記載の車両用電源制御装置。   3. The vehicle power supply control device according to claim 1, wherein the first solar cell and the second solar cell are fixed to the same translucent substrate, and each output terminal is connected to the same terminal box. . 前記端子ボックスは、前記第１太陽電池及び第２太陽電池の裏面部に一体的に設置され、前記切離し手段は、前記端子ボックス内に設置されている請求項３に記載の車両用電源制御装置。 4. The vehicle power supply control device according to claim 3 , wherein the terminal box is integrally installed on back surfaces of the first solar cell and the second solar cell, and the disconnecting unit is installed in the terminal box. 5. .
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