[go: up one dir, main page]
More Web Proxy on the site http://driver.im/

JP2005287146A - Power supply device of vehicle - Google Patents

Power supply device of vehicle Download PDF

Info

Publication number
JP2005287146A
JP2005287146A JP2004095739A JP2004095739A JP2005287146A JP 2005287146 A JP2005287146 A JP 2005287146A JP 2004095739 A JP2004095739 A JP 2004095739A JP 2004095739 A JP2004095739 A JP 2004095739A JP 2005287146 A JP2005287146 A JP 2005287146A
Authority
JP
Japan
Prior art keywords
battery
batteries
remaining capacity
power supply
charged
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
Application number
JP2004095739A
Other languages
Japanese (ja)
Inventor
Nashie Awane
梨絵 粟根
Tsukasa Harada
司 原田
Tadashi Yagumo
正 八雲
Tatsuro Takahashi
達朗 高橋
Tetsuya Nishisato
鉄也 西里
Haruhiro Hirano
晴洋 平野
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Mazda Motor Corp
Original Assignee
Mazda Motor Corp
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Mazda Motor Corp filed Critical Mazda Motor Corp
Priority to JP2004095739A priority Critical patent/JP2005287146A/en
Publication of JP2005287146A publication Critical patent/JP2005287146A/en
Pending legal-status Critical Current

Links

Images

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
    • 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

Landscapes

  • Control Of Charge By Means Of Generators (AREA)
  • Charge And Discharge Circuits For Batteries Or The Like (AREA)
  • Secondary Cells (AREA)

Abstract

<P>PROBLEM TO BE SOLVED: To provide a power supply device of a vehicle which assures the good charging efficiency of a battery with configuration having at least two batteries and which can suppress the deterioration of the battery and the occurrence of a fault. <P>SOLUTION: The power supply device mounted on the vehicle includes the first battery and the second battery for starting a starter motor for starting an engine, an alternator for energizing the first and second batteries to charge the batteries, a relay means disposed between the first, second batteries and the alternator to perform an on-off switching operation under predetermined conditions, a control means for controlling the switching operation of the relay means, and a remaining capacity detecting means for detecting the remaining capacity of the first and second batteries. The control means switches the relay means so that the first and second batteries are alternately charged preferentially to the battery having smaller remaining capacity based on information acquired from the remaining capacity detecting means. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

この発明は、自動車等の車両に搭載される電源装置に関する。   The present invention relates to a power supply device mounted on a vehicle such as an automobile.

近年、省エネルギー及び環境保護の観点から、車両停止時にエンジンを一時停止させ、発進時にスタータでエンジンを再始動させるアイドルストップが奨励されている。しかし、このアイドルストップでは、スタータを作動させる際、バッテリからスタータへ給電されるが、エンジン再始動を繰り返すと、オルタネータからのバッテリ充電が充分にできず、結果として、スタータを始動させる際に、エンジン始動性が悪化することがある。   In recent years, from the viewpoints of energy saving and environmental protection, idle stop is encouraged in which the engine is temporarily stopped when the vehicle is stopped and the engine is restarted with a starter when starting. However, in this idle stop, when the starter is operated, power is supplied from the battery to the starter.However, if the engine restart is repeated, the battery cannot be sufficiently charged from the alternator. As a result, when starting the starter, Engine startability may deteriorate.

かかるスタータの繰り返し作動を考慮して、従来では、少なくとも２つのバッテリを用いて、エンジンの再始動を円滑にし、且つ、バッテリが著しく劣化するのを抑制することができるエンジン自動始動システムが提案されている（例えば特許文献１参照）。このシステムでは、複数のバッテリと、これらバッテリを並列接続又は直列接続にするリレーと、エンジンを再始動させるスタータ機能とエンジンにより駆動されて発電する発電機能とを有する始動発電機と、車両停止によりエンジンを一時停止させ、車両発進の指示が出されると始動発電機へ通電してエンジンを再始動させる制御器と、が設けられ、エンジン運転中には制御器に基づいてリレーにより並列接続させてバッテリを始動発電機により充電が行なわれ、エンジン一時停止中に車両発進の指示が出されると、制御器に基づいてリレーにより並列接続側から直列接続側に切り替えられ、直列接続時電圧がインバータを介して始動発電機へ通電されてエンジンが再始動させられる。   In view of the repeated operation of the starter, an engine automatic start system that can smoothly restart the engine and suppress the deterioration of the battery by using at least two batteries has been proposed. (For example, refer to Patent Document 1). In this system, a starter generator having a plurality of batteries, a relay for connecting these batteries in parallel or in series, a starter function for restarting the engine, and a power generation function driven by the engine to generate electric power, A controller that temporarily stops the engine and energizes the starter generator to restart the engine when a vehicle start instruction is issued, and is connected in parallel by a relay based on the controller during engine operation. When the battery is charged by the starter generator and a vehicle start instruction is issued while the engine is temporarily stopped, the relay is switched from the parallel connection side to the series connection side by the relay based on the controller. Then, the engine is restarted by energizing the starter generator.

特開２００３−１５５９６８号公報JP 2003-155968 A

ところで、バッテリの特性としては、充電を続けると、例えば鉛のバッテリを採用した場合にはバッテリ内の電極まわりの硫酸濃度が高くなり、充電効率が低下すること、また、充放電を繰り返すにつれ、電極の劣化が進むこと、更に、過充電や過放電に起因して故障が生じる等が知られている。複数のバッテリが設けられた電源装置の構成においては、通常、１つのオルタネータから１つ又は複数のバッテリに対して充電が行なわれるが、かかる特性を考慮しつつオルタネータと各バッテリとの接続を切り替えるようにした制御が必要である。   By the way, as the characteristics of the battery, if charging is continued, for example, when a lead battery is adopted, the sulfuric acid concentration around the electrode in the battery increases, the charging efficiency decreases, and charging and discharging are repeated. It is known that the deterioration of the electrode progresses, and further, failure occurs due to overcharge or overdischarge. In a configuration of a power supply device provided with a plurality of batteries, one or more batteries are normally charged from one alternator, and the connection between the alternator and each battery is switched in consideration of such characteristics. Such control is necessary.

本発明は、上記技術的課題に鑑みてなされたもので、少なくとも２つのバッテリを備えた構成で、良好なバッテリの充電効率を確保し、また、バッテリの劣化や故障の発生を抑制し得る車両の電源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 above-described technical problem, and has a configuration including at least two batteries, ensures a good charging efficiency of the battery, and can suppress the deterioration and failure of the battery. An object of the present invention is to provide a power supply apparatus.

本願の請求項１に係る発明は、車両に搭載される電源装置において、エンジンを始動させるためのスタータモータを起動させる第１のバッテリ及び第２のバッテリと、上記第１及び第２のバッテリに給電し該バッテリを充電するオルタネータと、上記第１及び第２のバッテリとオルタネータとの間に配置され、所定条件下でオンオフ切替え動作を行なうリレー手段と、該リレー手段の切替え動作を制御する制御手段と、を有しており、該制御手段は、上記第１及び第２のバッテリが交互に充電されるように、上記リレー手段を切り替えることを特徴としたものである。   According to claim 1 of the present application, in a power supply device mounted on a vehicle, a first battery and a second battery for starting a starter motor for starting an engine, and the first and second batteries described above. An alternator for supplying power and charging the battery, a relay unit disposed between the first and second batteries and the alternator, for performing an on / off switching operation under a predetermined condition, and a control for controlling a switching operation of the relay unit And the control means switches the relay means so that the first and second batteries are alternately charged.

また、本願の請求項２に係る発明は、請求項１に係る発明において、更に、上記第１及び第２のバッテリの残存容量を検出する残存容量検知手段を有しており、上記制御手段は、上記残存容量検知手段から取得された情報に基づき、残存容量の少ない方のバッテリが充電されるように、上記リレー手段を切り替えることを特徴としたものである。   Further, the invention according to claim 2 of the present application is the invention according to claim 1, further comprising remaining capacity detecting means for detecting the remaining capacity of the first and second batteries, wherein the control means is Based on the information acquired from the remaining capacity detecting means, the relay means is switched so that the battery with the smaller remaining capacity is charged.

更に、本願の請求項３に係る発明は、請求項２に係る発明において、上記制御手段は、上記残存容量検知手段から取得された情報に基づき、充電されているバッテリの残存容量が充電されていないバッテリの残存容量を所定量上回ったことを検知すると、それまで充電されていなかったバッテリが充電されるように、上記リレー手段を切り替えることを特徴としたものである。   Further, in the invention according to claim 3 of the present application, in the invention according to claim 2, the control means is configured to charge the remaining capacity of the charged battery based on the information acquired from the remaining capacity detecting means. When it is detected that the remaining capacity of the remaining battery exceeds a predetermined amount, the relay means is switched so that the battery that has not been charged until then is charged.

また、更に、本願の請求項４に係る発明は、請求項２又は３に係る発明において、上記制御手段は、上記残存容量検知手段から取得された情報に基づき、一方のバッテリが満充電状態にあることを検知すると、該バッテリの充電が停止されるように、上記リレー手段を切り替えることを特徴としたものである。   Furthermore, in the invention according to claim 4 of the present application, in the invention according to claim 2 or 3, the control means is configured such that one of the batteries is fully charged based on the information acquired from the remaining capacity detection means. When the presence is detected, the relay means is switched so that charging of the battery is stopped.

また、更に、本願の請求項５に係る発明は、請求項１〜４に係る発明のいずれか一において、上記第１のバッテリが、エンジンを始動させるための第１のスタータモータを起動させるバッテリであり、上記第２のバッテリが、アイドルストップ時に停止したエンジンを再始動させるための第２のスタータモータを起動させるバッテリであることを特徴としたものである。   Furthermore, the invention according to claim 5 of the present application is the battery according to any one of claims 1 to 4, wherein the first battery starts a first starter motor for starting the engine. The second battery is a battery for starting a second starter motor for restarting the engine stopped at the time of idling stop.

本願の請求項１に係る発明によれば、２つのバッテリを交互に充電することで、第１及び第２のバッテリをそれぞれ充電する上で良好な充電効率を確保することができる。   According to the first aspect of the present invention, by charging the two batteries alternately, it is possible to ensure good charging efficiency when charging the first and second batteries, respectively.

また、本願の請求項２に係る発明によれば、残存容量の少ない方のバッテリが優先して充電されるため、第１及び第２のバッテリ間で均衡のとれた充電を実現することができる。   Further, according to the invention according to claim 2 of the present application, since the battery with the smaller remaining capacity is charged with priority, it is possible to realize a balanced charge between the first and second batteries. .

更に、本願の請求項３に係る発明によれば、充電されているバッテリの残存容量が充電されていないバッテリの残存容量を所定量上回った時点で、充電対象のバッテリが切り替えられるため、所定量の設定次第で、使用頻度等を考慮したバッテリの重み付けを行なうことができる。   Further, according to the invention of claim 3 of the present application, the battery to be charged is switched when the remaining capacity of the charged battery exceeds the remaining capacity of the uncharged battery by a predetermined amount. Depending on the setting, it is possible to weight the battery in consideration of the usage frequency and the like.

また、更に、本願の請求項４に係る発明によれば、過充電によるバッテリ故障の発生を防止することができる。   Furthermore, according to the invention of claim 4 of the present application, it is possible to prevent the occurrence of battery failure due to overcharging.

また、更に、本願の請求項５に係る発明によれば、上記各請求項に係る発明が奏する効果に加え、アイドルストップに伴うエンジン再始動を円滑にすることが可能である。   Furthermore, according to the invention according to claim 5 of the present application, in addition to the effects produced by the inventions according to the above claims, it is possible to smoothly restart the engine accompanying the idle stop.

以下、本発明の実施形態について、添付図面を参照しながら説明する。
図１は、本発明に係る車両の電源装置を概略的に示す図である。この電源装置１は、エンジン（不図示）を始動させるための第１のスタータモータＭ１に給電して、該第１のスタータモータＭ１を起動させる第１のバッテリＢ１と、アイドルストップ時に、エンジンを再始動させるための第２のスタータモータＭ２に給電して、該第２のスタータモータＭ２を起動させる第２のバッテリＢ２と、を備えている。第１及び第２のバッテリＢ１及びＢ２は、互いに等しい蓄電容量を有するものである。 Embodiments of the present invention will be described below with reference to the accompanying drawings.
FIG. 1 is a diagram schematically showing a power supply device for a vehicle according to the present invention. The power supply device 1 supplies power to a first starter motor M1 for starting an engine (not shown) to start the first starter motor M1, and the engine at the time of idling stop. A second battery B2 for supplying power to the second starter motor M2 for restarting and starting the second starter motor M2. The first and second batteries B1 and B2 have the same storage capacity.

電源装置１は、また、第１及び第２のバッテリＢ１及びＢ２の充電に際し、それらに電力を供給するオルタネータＡと、オルタネータＡから第１のバッテリＢ１への給電をオンオフする第１及び第２のリレーＲ１及びＲ２と、を備えている。第１及び第２のリレーＲ１及びＲ２は、オルタネータＡに対して、両者が互いに並列に配列されるように接続されており、また、第１のリレーＲ１には、第１のバッテリＢ１が直列に接続され、他方、第２のリレーＲ２には、第２のバッテリＢ２が直列に接続されている。更に、第１のバッテリＢ１には、第１のスタータモータＭ１が該第１のバッテリＢ１から受電可能に接続され、他方、第２のバッテリＢ２には、第２のスタータモータＭ２が該第２のバッテリＢ２から受電可能に接続されている。   The power supply device 1 also includes an alternator A that supplies power to the first and second batteries B1 and B2, and first and second power supplies that are turned on and off from the alternator A to the first battery B1. Relays R1 and R2. The first and second relays R1 and R2 are connected to the alternator A so that both are arranged in parallel with each other, and the first battery B1 is connected in series to the first relay R1. On the other hand, the second battery R2 is connected in series to the second relay R2. Further, the first starter motor M1 is connected to the first battery B1 so as to be able to receive power from the first battery B1, while the second starter motor M2 is connected to the second battery B2 by the second starter motor M2. The battery B2 is connected so as to be able to receive power.

また、図１に示すように、かかる電源装置１に対して、車両に装備される照明器やオーディオ機器等の電装補器類Ｌ１〜Ｌｎが、オルタネータＡ又は第１及び第２のバッテリＢ１及びＢ２から受電可能に接続されている。通常、これらの電装補器類Ｌ１〜Ｌｎに対しては、エンジン作動状態において、オルタネータＡから給電が行なわれ、エンジン停止状態においては、バックアップ電源として第１及び第２のバッテリＢ１及びＢ２に蓄えられた電気が暗電流として供給される。   Moreover, as shown in FIG. 1, with respect to such a power supply device 1, electrical auxiliary equipments L1 to Ln such as an illuminator and an audio device installed in the vehicle include an alternator A or first and second batteries B1 and It is connected so as to be able to receive power from B2. Normally, these electrical accessories L1 to Ln are supplied with power from the alternator A in the engine operating state, and stored in the first and second batteries B1 and B2 as backup power sources in the engine stopped state. The supplied electricity is supplied as a dark current.

電源装置１は、更に、第１及び第２のリレーＲ１及びＲ２の切替え動作を制御し得る制御回路Ｃを備えている。この制御回路Ｃは、第１及び第２のバッテリＢ１及びＢ２側で検知される各バッテリの残存容量Ｐ１，Ｐ２をあらわす情報，車速センサにより検知される車両の走行速度（車速）をあらわす情報，エンジン停止時間測定タイマーにより測定されるエンジン停止からの経過時間をあらわす情報，ユーザが携帯する送信機から送られてくるドアロック・アンロック信号を受信するキーレスエントリ用の受信機での受信情報，エンジン制御ユニットの作動状態を切り替えるイグニッションスイッチのオンオフ状態をあらわす情報，パーキングブレーキの操作状態をあらわす情報、及び、変速操作を行なうチェンジレバーの操作状態をあらわす情報、並びに、ドアスイッチにより検知されたドアの開閉状態をあらわす情報などの各種情報を取得することができる。そして、制御回路Ｃは、これらの情報に基づき、所定の判断を行い、第１及び第２のリレーＲ１及びＲ２のオンオフ切替え動作を制御する。   The power supply device 1 further includes a control circuit C that can control the switching operation of the first and second relays R1 and R2. The control circuit C includes information representing the remaining capacities P1 and P2 of the respective batteries detected on the first and second batteries B1 and B2, and information representing the traveling speed (vehicle speed) of the vehicle detected by the vehicle speed sensor. Information indicating the elapsed time from engine stop measured by the engine stop time measurement timer, information received at the receiver for keyless entry that receives the door lock / unlock signal sent from the transmitter carried by the user, Information indicating the on / off state of the ignition switch for switching the operation state of the engine control unit, information indicating the operation state of the parking brake, information indicating the operation state of the change lever for performing the shifting operation, and the door detected by the door switch Various information such as information indicating the open / close state of the Can. Then, the control circuit C makes a predetermined determination based on these pieces of information, and controls the on / off switching operation of the first and second relays R1 and R2.

制御回路Ｃにより、第１のリレーＲ１がオン状態（閉状態）に設定されると、オルタネータＡからの給電により第１のバッテリＢ１が充電され、また、第１のリレーＲ１がオフ状態（開状態）に設定されると、第１のバッテリＢ１は、オルタネータＡ及び電装補器類Ｌ１〜Ｌｎから切り離され、第１のスタータモータＭ１を起動させ得る状態となる。
他方、第２のリレーＲ２がオン状態（閉状態）に設定されると、オルタネータＡからの給電により第２のバッテリＢ２が充電され、オフ状態に設定されると、第２のバッテリＢ１は、オルタネータＡ及び電装補器類Ｌ１〜Ｌｎから切り離され、第２のスタータモータＭ２を起動させ得る状態となる。 When the first relay R1 is set to the on state (closed state) by the control circuit C, the first battery B1 is charged by the power supply from the alternator A, and the first relay R1 is turned off (open). When the state is set, the first battery B1 is disconnected from the alternator A and the electrical auxiliary equipments L1 to Ln, and the first starter motor M1 can be started.
On the other hand, when the second relay R2 is set to the on state (closed state), the second battery B2 is charged by the power supply from the alternator A, and when the second relay R2 is set to the off state, the second battery B1 is It is disconnected from the alternator A and the electrical auxiliary equipments L1 to Ln, and the second starter motor M2 can be activated.

更に、制御回路Ｃは、必要に応じて、第１及び第２のリレーＲ１及びＲ２をオン状態に設定し、第１及び第２のバッテリＢ１及びＢ２の両方から、第１のスタータモータＭ１へ給電し該第１のスタータモータＭ１を起動させる、若しくは、第２のスタータモータＭ２へ給電し該第２のスタータモータＭ２を起動させるような制御を行なうことも可能である。   Further, the control circuit C sets the first and second relays R1 and R2 to the ON state as necessary, and from both the first and second batteries B1 and B2 to the first starter motor M1. It is also possible to perform control such that power is supplied to start the first starter motor M1, or power is supplied to the second starter motor M2 to start the second starter motor M2.

本実施形態に係る電源装置１では、第１及び第２のバッテリＢ１及びＢ２の良好な充電効率を確保し、また、第１及び第２のバッテリＢ１及びＢ２の劣化や故障の発生を抑制するために、オルタネータＡと第１及び第２のバッテリＢ１及びＢ２との接続状態を決める第１及び第２のリレーＲ１及びＲ２のオンオフ切替え動作について工夫がなされている。具体的には、第１及び第２のバッテリＢ１及びＢ２が交互に充電されるように、第１及び第２のリレーＲ１及びＲ２のオンオフ切替え動作が制御される。そして、それらの切替えは、第１及び第２のバッテリＢ１及びＢ２の残存容量Ｐ１及びＰ２に基づき、残存容量の少ない方のバッテリが充電されるように行なわれる。また、バッテリが満充電状態になった場合には、オルタネータＡからそのバッテリへの給電が停止されるように、切替えが行なわれる。   In the power supply device 1 according to the present embodiment, good charging efficiency of the first and second batteries B1 and B2 is ensured, and deterioration and failure of the first and second batteries B1 and B2 are suppressed. Therefore, a device has been devised for the on / off switching operation of the first and second relays R1 and R2 for determining the connection state between the alternator A and the first and second batteries B1 and B2. Specifically, the on / off switching operation of the first and second relays R1 and R2 is controlled so that the first and second batteries B1 and B2 are alternately charged. These switching operations are performed so that the battery with the smaller remaining capacity is charged based on the remaining capacities P1 and P2 of the first and second batteries B1 and B2. When the battery is fully charged, switching is performed so that power supply from the alternator A to the battery is stopped.

図２は、このような第１及び第２のリレーＲ１及びＲ２の切替え時における第１及び第２のバッテリＢ１及びＢ２の残存容量Ｐ１及びＰ２をあらわす図である。まず、図２の（ａ）には、第１のリレーＲ１が閉状態にかつ第２のリレーＲ２が開状態に設定され、第１のバッテリＢ１が充電されている状態が示されている。この状態においては、第１のバッテリＢ１の残存容量Ｐ１が、ハッチングを付した矩形で示す容量から白抜き矩形で示す容量が上乗せされた容量となっており、また、第２のバッテリＢ２の残存容量Ｐ２に対してｐ１だけ上回っている。本実施形態では、図２の（ａ）に示すように、第１のバッテリＢ１の残存容量Ｐ１が第２のバッテリＢ２の残存容量Ｐ２に対してｐ１だけ上回った時点で、第２のバッテリＢ２の充電に切り替わるように、第１のリレーＲ１が開状態にかつ第２のリレーＲ２が閉状態に設定される。   FIG. 2 is a diagram illustrating the remaining capacities P1 and P2 of the first and second batteries B1 and B2 when the first and second relays R1 and R2 are switched. First, FIG. 2A shows a state in which the first relay R1 is closed and the second relay R2 is set open, and the first battery B1 is charged. In this state, the remaining capacity P1 of the first battery B1 is the capacity obtained by adding the capacity indicated by the white rectangle to the capacity indicated by the hatched rectangle, and the remaining capacity of the second battery B2 is indicated. It exceeds p1 with respect to the capacitance P2. In the present embodiment, as shown in FIG. 2A, when the remaining capacity P1 of the first battery B1 exceeds the remaining capacity P2 of the second battery B2 by p1, the second battery B2 The first relay R1 is set in the open state and the second relay R2 is set in the closed state so as to switch to the charging.

次に、図２の（ｂ）には、第１のリレーＲ１が開状態にかつ第２のリレーＲ２が閉状態に設定され、第２のバッテリＢ２が充電されている状態が示されている。この状態においては、第２のバッテリＢ２の残存容量Ｐ２が、ハッチングを付した矩形で示す容量から白抜き矩形で示す容量が上乗せされた容量となっており、また、第１のバッテリＢ１の残存容量Ｐ１に対してｐ２だけ上回っている。本実施形態では、図２の（ｂ）に示すように、第２のバッテリＢ２の残存容量Ｐ２が第１のバッテリＢ１の残存容量Ｐ１に対してｐ２だけ上回った時点で、第１のバッテリＢ１の充電に切り替わるように、第１のリレーＲ１が閉状態にかつ第２のリレーＲ２が開状態に設定される。
なお、充電対象とするバッテリを切り替える時点での残存容量の差ｐ１及びｐ２を任意に設定可能とすれば、第１及び第２のバッテリＢ１及びＢ２間で、使用頻度等を考慮した重み付けをその設定次第で行なうことができる。 Next, FIG. 2B shows a state where the first relay R1 is set in the open state and the second relay R2 is set in the closed state, and the second battery B2 is charged. . In this state, the remaining capacity P2 of the second battery B2 is a capacity obtained by adding the capacity indicated by the white rectangle to the capacity indicated by the hatched rectangle, and the remaining capacity of the first battery B1. It exceeds the capacity P1 by p2. In the present embodiment, as shown in FIG. 2B, when the remaining capacity P2 of the second battery B2 exceeds the remaining capacity P1 of the first battery B1 by p2, the first battery B1. The first relay R1 is set in the closed state and the second relay R2 is set in the open state so as to switch to the charging of
If the remaining capacity difference p1 and p2 at the time of switching the battery to be charged can be arbitrarily set, weighting in consideration of the frequency of use and the like is given between the first and second batteries B1 and B2. This can be done depending on the setting.

図２の（ａ）及び（ｂ）に示すような第１及び第２のバッテリＢ１及びＢ２の充電は、いずれか一方のバッテリが満充電状態になるまで交互に繰り返される。そして、図２の（ｃ）に示すように、第１のリレーＲ１が閉状態にかつ第２のリレーＲ２が開状態に設定され、第１のバッテリＢ１が満充電状態、すなわち、残存容量Ｐ１がその最大値Ｐｍａｘをとる状態になると、第１のリレーＲ１が開状態に切り替えられて、オルタネータＡから第１のバッテリＢ１への給電が停止される。第２のリレーＲ２が満充電状態になった場合にも、同様に、第２のリレーＲ２が開状態に切り替えられて、オルタネータＡからの給電が停止される。
また、第１及び第２のバッテリＢ１及びＢ２が共に満充電状態になった場合には、第１及びリレーＲ１及びＲ２の両方が開状態に設定されて、オルタネータＡから第１及び第２のバッテリＢ１及びＢ２への給電が共に停止される。 Charging of the first and second batteries B1 and B2 as shown in FIGS. 2A and 2B is repeated alternately until one of the batteries is fully charged. Then, as shown in FIG. 2 (c), the first relay R1 is set to the closed state and the second relay R2 is set to the open state, and the first battery B1 is fully charged, that is, the remaining capacity P1. Becomes the maximum value Pmax, the first relay R1 is switched to the open state, and the power supply from the alternator A to the first battery B1 is stopped. Similarly, when the second relay R2 is fully charged, the second relay R2 is switched to the open state, and the power supply from the alternator A is stopped.
When both the first and second batteries B1 and B2 are fully charged, both the first and relays R1 and R2 are set to the open state, and the first and second from the alternator A are set. Both the power supply to the batteries B1 and B2 is stopped.

図３は、電源装置１によるリレー切替え制御処理についてのフローチャートである。この処理では、まず、第１及び第２のバッテリＢ１及びＢ２の残存容量Ｐ１及びＰ２が比較され、Ｐ１がＰ２よりも大きいか（Ｐ１＞Ｐ２であるか）否かが判断される（Ｓ１１）。その結果、Ｐ１がＰ２より大きいと判断された場合には、Ｓ１５へ進む。他方、Ｐ１がＰ２以下であると判断された場合には、第１のリレーＲ１が閉状態にかつ第２のリレーＲ２が開状態に設定され（Ｓ１２）、第１のバッテリＢ１の充電が行なわれる（Ｓ１３）。   FIG. 3 is a flowchart of the relay switching control process performed by the power supply device 1. In this process, first, the remaining capacities P1 and P2 of the first and second batteries B1 and B2 are compared to determine whether P1 is larger than P2 (P1> P2) (S11). . As a result, if it is determined that P1 is greater than P2, the process proceeds to S15. On the other hand, if it is determined that P1 is equal to or less than P2, the first relay R1 is set to the closed state and the second relay R2 is set to the open state (S12), and the first battery B1 is charged. (S13).

その後、Ｐ１がＰ２よりも大きいか否かが再度判断され（Ｓ１４）、その結果、Ｐ１がＰ２以下であると判断された場合には、Ｓ１３へ戻り、第１のバッテリＢ１の充電が続行される。他方、Ｓの１４の結果、Ｐ１がＰ２より大きいと判断された場合には、引き続き、第１のバッテリＢ１が満充電状態にあるか否かが判断される（Ｓ１５）。   Thereafter, it is determined again whether or not P1 is greater than P2 (S14). As a result, if it is determined that P1 is equal to or less than P2, the process returns to S13 and charging of the first battery B1 is continued. The On the other hand, if it is determined as a result of S14 that P1 is greater than P2, it is subsequently determined whether or not the first battery B1 is in a fully charged state (S15).

Ｓ１５の結果、第１のバッテリＢ１が満充電状態にあると判断された場合には、Ｓ１９へ進む。他方、第１のバッテリＢ１が満充電状態にないと判断された場合には、第１のリレーＲ１が開状態にかつ第２のリレーＲ２が閉状態に設定され（Ｓ１６）、第２のバッテリＢ２の充電が行なわれる（Ｓ１７）。   As a result of S15, when it is determined that the first battery B1 is in a fully charged state, the process proceeds to S19. On the other hand, if it is determined that the first battery B1 is not fully charged, the first relay R1 is set to the open state and the second relay R2 is set to the closed state (S16), and the second battery B2 is charged (S17).

その後、Ｐ２がＰ１よりも大きいか否かが判断され（Ｓ１８）、その結果、Ｐ２がＰ１以下であると判断された場合には、Ｓ１７へ戻り、第２のバッテリＢ２の充電が続行される。他方、Ｐ２がＰ１より大きいと判断された場合には、引き続き、第２のバッテリＢ２が満充電状態にあるか否かが判断される（Ｓ１９）。   Thereafter, it is determined whether or not P2 is larger than P1 (S18). As a result, when it is determined that P2 is equal to or less than P1, the process returns to S17, and charging of the second battery B2 is continued. . On the other hand, if it is determined that P2 is greater than P1, it is subsequently determined whether or not the second battery B2 is fully charged (S19).

Ｓ１９の結果、第２のバッテリＢ２が満充電状態にないと判断された場合には、Ｓ１２へ戻り、それ以降のステップが繰り返される。他方、第２のバッテリＢ２が満充電状態にあると判断された場合には、オルタネータＡから第１及び第２のバッテリＢ１及びＢ２への給電が停止されるような制御（オルタネータ制御）が行なわれ（Ｓ２０）、以上で処理が終了される。   As a result of S19, when it is determined that the second battery B2 is not in a fully charged state, the process returns to S12 and the subsequent steps are repeated. On the other hand, when it is determined that the second battery B2 is in a fully charged state, control (alternator control) is performed such that power supply from the alternator A to the first and second batteries B1 and B2 is stopped. This is the end of the processing (S20).

以上のように、本実施形態に係る電源装置１では、第１及び第２のバッテリＢ１及びＢ２が交互に充電されることで、各充電において良好な充電効率を確保することができる。また、それらの切替えが、第１及び第２のバッテリＢ１及びＢ２の残存容量Ｐ１及びＰ２に基づき、残存容量の少ない方のバッテリが優先して充電されるように行なわれることで、第１及び第２のバッテリＢ１及びＢ２の間で均衡のとれた充電を実現することができる。その結果として、満充電状態になるまでの充電を１回とした場合に、全体として１つのバッテリ当たりの充電回数が減るため、電極の劣化を抑制し、バッテリ自体の劣化を抑制することができる。更に、バッテリが満充電状態になった場合には、そのバッテリへの給電を停止しその充電を止めることで、過充電による故障の発生を防止することができる。   As described above, in the power supply device 1 according to this embodiment, the first and second batteries B1 and B2 are alternately charged, so that good charging efficiency can be ensured in each charge. Further, the switching is performed such that the battery with the smaller remaining capacity is preferentially charged based on the remaining capacities P1 and P2 of the first and second batteries B1 and B2. Balanced charging can be realized between the second batteries B1 and B2. As a result, since the number of times of charging per battery is reduced as a whole when charging until reaching a fully charged state is reduced, electrode deterioration can be suppressed and deterioration of the battery itself can be suppressed. . Furthermore, when the battery is fully charged, power supply to the battery is stopped and the charging is stopped, thereby preventing a failure due to overcharging.

本実施形態のように、互いに等しい蓄電容量を有する第１及び第２のバッテリＢ１及びＢ２を採用した場合には、図３のＳ１１，Ｓ１４又はＳ１８でそれらの残存容量Ｐ１，Ｐ２を比較するに際して、残存容量の絶対値を比較するが、例えば第１のバッテリＢ１の蓄電容量が第２のバッテリＢ２の蓄電容量を大きい場合など、互い異なる蓄電容量を有する第１及び第２のバッテリＢ１及びＢ２を採用した場合には、各バッテリの残存割合（すなわち残存容量／蓄電容量）を比較するようにしてもよい。これにより、第１及び第２のバッテリＢ１及びＢ２の間で均衡のとれた充電が一層確実に実現可能となる。このことはまた各バッテリの寿命を確保する上でも有効である。   When the first and second batteries B1 and B2 having the same storage capacity are employed as in the present embodiment, the remaining capacities P1 and P2 are compared in S11, S14 or S18 of FIG. The first and second batteries B1 and B2 having different storage capacities are compared when the absolute values of the remaining capacities are compared, for example, when the storage capacity of the first battery B1 is larger than the storage capacity of the second battery B2. May be used, the remaining ratio of each battery (that is, remaining capacity / storage capacity) may be compared. This makes it possible to more reliably realize a balanced charge between the first and second batteries B1 and B2. This is also effective in ensuring the life of each battery.

なお、本発明は、例示された実施の形態に限定されるものでなく、本発明の要旨を逸脱しない範囲において、種々の改良及び設計上の変更が可能であることは言うまでもない。   Note that the present invention is not limited to the illustrated embodiments, and it goes without saying that various improvements and design changes are possible without departing from the scope of the present invention.

本発明に係る車両の電源装置の基本構成を概略的に示す図である。It is a figure showing roughly the basic composition of the power supply device of vehicles concerning the present invention. リレーＲ１及びＲ２の切替え時におけるバッテリＢ１及びＢ２の残存容量Ｐ１及びＰ２をあらわす図であるIt is a figure showing remaining capacity P1 and P2 of batteries B1 and B2 at the time of switching of relays R1 and R2 上記電源装置によるリレー切替え制御処理についてのフローチャートである。It is a flowchart about the relay switching control process by the said power supply device.

符号の説明Explanation of symbols

１…電源装置
Ａ…オルタネータ
Ｂ１…第１のバッテリ
Ｂ２…第２のバッテリ
Ｌ１，・・・，Ｌｎ…電装補器類
Ｍ１…第１のスタータモータ
Ｍ２…第２のスタータモータ
Ｐ１…第１のバッテリの残存容量
Ｐ２…第２のバッテリの残存容量
Ｒ１…第１のリレー
Ｒ２…第２のリレー
DESCRIPTION OF SYMBOLS 1 ... Power supply device A ... Alternator B1 ... 1st battery B2 ... 2nd battery L1, ..., Ln ... Electrical equipment M1 ... 1st starter motor M2 ... 2nd starter motor P1 ... 1st Battery remaining capacity P2 ... Second battery remaining capacity R1 ... First relay R2 ... Second relay

Claims (5)

車両に搭載される電源装置において、
エンジンを始動させるためのスタータモータを起動させる第１のバッテリ及び第２のバッテリと、
上記第１及び第２のバッテリに給電し該バッテリを充電するオルタネータと、
上記第１及び第２のバッテリとオルタネータとの間に配置され、所定条件下でオンオフ切替え動作を行なうリレー手段と、
上記リレー手段の切替え動作を制御する制御手段と、を有しており、
上記制御手段は、上記第１及び第２のバッテリが交互に充電されるように、上記リレー手段を切り替えることを特徴とする車両の電源装置。 In a power supply device mounted on a vehicle,
A first battery and a second battery for starting a starter motor for starting the engine;
An alternator for supplying power to and charging the first and second batteries;
Relay means disposed between the first and second batteries and the alternator and performing an on / off switching operation under a predetermined condition;
Control means for controlling the switching operation of the relay means,
The vehicle power supply apparatus characterized in that the control means switches the relay means so that the first and second batteries are alternately charged. 更に、上記第１及び第２のバッテリの残存容量を検出する残存容量検知手段を有しており、
上記制御手段は、上記残存容量検知手段から取得される情報に基づき、残存容量の少ない方のバッテリが充電されるように、上記リレー手段を切り替えることを特徴とする請求項１記載の車両の電源装置。 Furthermore, it has a remaining capacity detecting means for detecting the remaining capacity of the first and second batteries,
2. The power supply for a vehicle according to claim 1, wherein the control means switches the relay means based on the information acquired from the remaining capacity detecting means so that the battery with the smaller remaining capacity is charged. apparatus. 上記制御手段は、上記残存容量検知手段から取得された情報に基づき、充電されているバッテリの残存容量が充電されていないバッテリの残存容量を所定量上回ったことを検知すると、それまで充電されていなかったバッテリが充電されるように、上記リレー手段を切り替えることを特徴とする請求項２記載の車両の電源装置。   When the control means detects that the remaining capacity of the charged battery exceeds the remaining capacity of the uncharged battery based on the information acquired from the remaining capacity detection means, the control means has been charged until then. 3. The vehicle power supply device according to claim 2, wherein the relay means is switched so that a battery that has not been charged is charged. 上記制御手段は、上記残存容量検知手段から取得された情報に基づき、一方のバッテリが満充電状態にあることを検知すると、該バッテリの充電が停止されるように、上記リレー手段を切り替えることを特徴とする請求項２又は３に記載の車両の電源装置。   When detecting that one of the batteries is fully charged based on the information acquired from the remaining capacity detecting means, the control means switches the relay means so that charging of the battery is stopped. The power supply device for a vehicle according to claim 2 or 3, 上記第１のバッテリが、エンジンを始動させるための第１のスタータモータを起動させるバッテリであり、上記第２のバッテリが、アイドルストップ時に停止したエンジンを再始動させるための第２のスタータモータを起動させるバッテリであることを特徴とする請求項１〜４のいずれか一に記載の車両の電源装置。
The first battery is a battery for starting a first starter motor for starting the engine, and the second battery is a second starter motor for restarting the engine stopped at the time of idling stop. It is a battery to start, The power supply device of the vehicle as described in any one of Claims 1-4 characterized by the above-mentioned.
JP2004095739A 2004-03-29 2004-03-29 Power supply device of vehicle Pending JP2005287146A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2004095739A JP2005287146A (en) 2004-03-29 2004-03-29 Power supply device of vehicle

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2004095739A JP2005287146A (en) 2004-03-29 2004-03-29 Power supply device of vehicle

Publications (1)

Publication Number Publication Date
JP2005287146A true JP2005287146A (en) 2005-10-13

Family

ID=35184955

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2004095739A Pending JP2005287146A (en) 2004-03-29 2004-03-29 Power supply device of vehicle

Country Status (1)

Country Link
JP (1) JP2005287146A (en)

Cited By (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2007168742A (en) * 2005-12-26 2007-07-05 Toyota Motor Corp Vehicle power supply
JP2008236848A (en) * 2007-03-19 2008-10-02 Mazda Motor Corp Battery charger
JP2009243291A (en) * 2008-03-28 2009-10-22 Mazda Motor Corp Control method of internal combustion engine system and internal combustion engine system
JP2009243292A (en) * 2008-03-28 2009-10-22 Mazda Motor Corp Control method of internal combustion engine system and internal combustion engine system
JP2012070487A (en) * 2010-09-21 2012-04-05 Sumitomo Electric Ind Ltd Secondary cell charge and discharge device and power storage system
JP2012165589A (en) * 2011-02-08 2012-08-30 Toyota Motor Corp Power generation control system of vehicle
WO2013015273A1 (en) * 2011-07-28 2013-01-31 三菱重工業株式会社 Battery system
US8408177B2 (en) 2008-03-28 2013-04-02 Mazda Motor Corporation Control method for internal combustion engine system, and internal combustion engine system
KR101397023B1 (en) * 2012-03-23 2014-05-20 삼성에스디아이 주식회사 Battery pack and method for controlling the same
JP2016100932A (en) * 2014-11-19 2016-05-30 株式会社コタック Backup power supply system for vehicle power supply
JP2016203792A (en) * 2015-04-22 2016-12-08 株式会社デンソー Power supply unit
US9744926B2 (en) 2013-01-24 2017-08-29 Toyota Jidosha Kabushiki Kaisha Vehicular power supply apparatus
EP3890156A1 (en) 2020-04-02 2021-10-06 Yamaha Hatsudoki Kabushiki Kaisha Control device of battery of marine vessel, control method therefor, and marine vessel
WO2022130936A1 (en) * 2020-12-17 2022-06-23 株式会社クボタ Electric work machine
JP2022135506A (en) * 2021-03-05 2022-09-15 株式会社日立製作所 Mobile and power control equipment

Cited By (22)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2007168742A (en) * 2005-12-26 2007-07-05 Toyota Motor Corp Vehicle power supply
JP2008236848A (en) * 2007-03-19 2008-10-02 Mazda Motor Corp Battery charger
JP2009243291A (en) * 2008-03-28 2009-10-22 Mazda Motor Corp Control method of internal combustion engine system and internal combustion engine system
JP2009243292A (en) * 2008-03-28 2009-10-22 Mazda Motor Corp Control method of internal combustion engine system and internal combustion engine system
US8408177B2 (en) 2008-03-28 2013-04-02 Mazda Motor Corporation Control method for internal combustion engine system, and internal combustion engine system
JP2012070487A (en) * 2010-09-21 2012-04-05 Sumitomo Electric Ind Ltd Secondary cell charge and discharge device and power storage system
JP2012165589A (en) * 2011-02-08 2012-08-30 Toyota Motor Corp Power generation control system of vehicle
WO2013015273A1 (en) * 2011-07-28 2013-01-31 三菱重工業株式会社 Battery system
JP2013031281A (en) * 2011-07-28 2013-02-07 Mitsubishi Heavy Ind Ltd Battery system
US9653924B2 (en) 2011-07-28 2017-05-16 Mitsubishi Heavy Industries, Ltd. Battery system
US9190861B2 (en) 2012-03-23 2015-11-17 Samsung Sdi Co., Ltd. Battery pack and method of controlling the same
KR101397023B1 (en) * 2012-03-23 2014-05-20 삼성에스디아이 주식회사 Battery pack and method for controlling the same
US9744926B2 (en) 2013-01-24 2017-08-29 Toyota Jidosha Kabushiki Kaisha Vehicular power supply apparatus
JP2016100932A (en) * 2014-11-19 2016-05-30 株式会社コタック Backup power supply system for vehicle power supply
JP2016203792A (en) * 2015-04-22 2016-12-08 株式会社デンソー Power supply unit
EP3890156A1 (en) 2020-04-02 2021-10-06 Yamaha Hatsudoki Kabushiki Kaisha Control device of battery of marine vessel, control method therefor, and marine vessel
US11904989B2 (en) 2020-04-02 2024-02-20 Yamaha Hatsudoki Kabushiki Kaisha Control device for battery of marine vessel, control method therefor, and marine vessel
WO2022130936A1 (en) * 2020-12-17 2022-06-23 株式会社クボタ Electric work machine
JPWO2022130936A1 (en) * 2020-12-17 2022-06-23
JP7581380B2 (en) 2020-12-17 2024-11-12 株式会社クボタ Electric work machine
JP2022135506A (en) * 2021-03-05 2022-09-15 株式会社日立製作所 Mobile and power control equipment
JP7460568B2 (en) 2021-03-05 2024-04-02 株式会社日立製作所 Mobile objects and power control equipment

Similar Documents

Publication Publication Date Title
US7042115B2 (en) Power supply control system for vehicle and method
JP6465907B2 (en) Vehicle power supply system
US20150336523A1 (en) Vehicle power supply apparatus and vehicle power regeneration system
JP2005287146A (en) Power supply device of vehicle
WO2012104957A1 (en) Power supply management device
JP2019205275A (en) Power supply device
US20100305793A1 (en) Method for starting a hybrid electric vehicle
JP2010252414A (en) Economical running control unit
JP2007259645A (en) Battery controller
JP2010247556A (en) Economical running control device
JP2005282428A (en) Power supply unit for vehicle
JP7128661B2 (en) battery diagnostic device
JP4930420B2 (en) In-vehicle power supply
JP2010221828A (en) Economy running control device
JP2005282427A (en) Power supply unit for vehicle
JP4844440B2 (en) Battery charger
JP2004229478A (en) Power supply control device for vehicles
JP2005282424A (en) Power supply unit for vehicle
JP2005264860A (en) Electric power unit for vehicle
JP4274015B2 (en) Vehicle power supply
JP2006180665A (en) Charger for hybrid vehicle
JP2006336628A5 (en)
JP5397097B2 (en) Vehicle power supply
JP6851743B2 (en) Jumping start judgment device
JP2011047380A (en) Power supply device for vehicle

Legal Events

Date Code Title Description
A621 Written request for application examination

Free format text: JAPANESE INTERMEDIATE CODE: A621

Effective date: 20061114

RD03 Notification of appointment of power of attorney

Free format text: JAPANESE INTERMEDIATE CODE: A7423

Effective date: 20061114

A977 Report on retrieval

Free format text: JAPANESE INTERMEDIATE CODE: A971007

Effective date: 20080522

A131 Notification of reasons for refusal

Free format text: JAPANESE INTERMEDIATE CODE: A131

Effective date: 20080527

A02 Decision of refusal

Free format text: JAPANESE INTERMEDIATE CODE: A02

Effective date: 20080930