JP2003037903A - Charging method for storage battery for vehicular accessory of electric vehicle - Google Patents
Charging method for storage battery for vehicular accessory of electric vehicleInfo
- Publication number
- JP2003037903A JP2003037903A JP2001222797A JP2001222797A JP2003037903A JP 2003037903 A JP2003037903 A JP 2003037903A JP 2001222797 A JP2001222797 A JP 2001222797A JP 2001222797 A JP2001222797 A JP 2001222797A JP 2003037903 A JP2003037903 A JP 2003037903A
- Authority
- JP
- Japan
- Prior art keywords
- battery
- charging
- storage battery
- vehicle
- voltage
- 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.)
- Withdrawn
Links
- 238000000034 method Methods 0.000 title claims abstract description 24
- 230000005611 electricity Effects 0.000 claims 1
- 238000001816 cooling Methods 0.000 description 27
- 238000010586 diagram Methods 0.000 description 2
- 102100033040 Carbonic anhydrase 12 Human genes 0.000 description 1
- 102100033007 Carbonic anhydrase 14 Human genes 0.000 description 1
- 101000867855 Homo sapiens Carbonic anhydrase 12 Proteins 0.000 description 1
- 101000867862 Homo sapiens Carbonic anhydrase 14 Proteins 0.000 description 1
- 101001125858 Homo sapiens Peptidase inhibitor 15 Proteins 0.000 description 1
- 101001125854 Homo sapiens Peptidase inhibitor 16 Proteins 0.000 description 1
- 102100029323 Peptidase inhibitor 15 Human genes 0.000 description 1
- 102100029324 Peptidase inhibitor 16 Human genes 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 239000008151 electrolyte solution Substances 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
- B60L58/00—Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles
- B60L58/10—Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles for monitoring or controlling batteries
- B60L58/18—Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles for monitoring or controlling batteries of two or more battery modules
- B60L58/20—Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles for monitoring or controlling batteries of two or more battery modules having different nominal voltages
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
- B60L53/00—Methods of charging batteries, specially adapted for electric vehicles; Charging stations or on-board charging equipment therefor; Exchange of energy storage elements in electric vehicles
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/60—Other road transportation technologies with climate change mitigation effect
- Y02T10/70—Energy storage systems for electromobility, e.g. batteries
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/60—Other road transportation technologies with climate change mitigation effect
- Y02T10/7072—Electromobility specific charging systems or methods for batteries, ultracapacitors, supercapacitors or double-layer capacitors
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T90/00—Enabling technologies or technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02T90/10—Technologies relating to charging of electric vehicles
- Y02T90/14—Plug-in electric vehicles
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Transportation (AREA)
- Mechanical Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- Sustainable Development (AREA)
- Sustainable Energy (AREA)
- Electric Propulsion And Braking For Vehicles (AREA)
- Arrangement Or Mounting Of Propulsion Units For Vehicles (AREA)
- Charge And Discharge Circuits For Batteries Or The Like (AREA)
- Secondary Cells (AREA)
Abstract
Description
【０００１】[0001]
【発明の属する技術分野】この発明は、走行モータ駆動
用蓄電池と、補機類用の車両補機用蓄電池とを備えた電
気自動車に適用される、電気自動車の車両補機用蓄電池
の充電方法に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention is applied to an electric vehicle equipped with a storage battery for driving a traveling motor and a vehicle auxiliary storage battery for auxiliary machinery, and a method for charging a vehicle auxiliary storage battery of an electric vehicle. Regarding
【０００２】[0002]
【従来の技術】電気自動車には、トラクションモータを
駆動するための走行用のメインバッテリ（走行モータ駆
動用蓄電池）と、補機類（ヘッドライト、ファンモータ
など）を駆動するための補機用バッテリ（車両補機用蓄
電池）が搭載されているのが一般的である。この補機用
バッテリは走行時の補機作動で電力を消費し、また停止
時においても制御装置の暗電流等により電力が消費され
るため、適度な充電が必要である。ガソリン自動車の場
合には、走行時に補機バッテリを適度に充電することが
できる。しかし、電気自動車は、その性質上ガソリン自
動車に比べて走行時間が短いため、ガソリン自動車と異
なり補機用バッテリの充電に必要な充電時間を確保でき
ない。このため、電気自動車においては補機用バッテリ
の充電を、メインバッテリの充電時に併せて行うように
している。2. Description of the Related Art In an electric vehicle, a main battery for traveling (driving battery for driving a driving motor) for driving a traction motor and an auxiliary device for driving auxiliary equipment (headlight, fan motor, etc.) In general, a battery (a storage battery for vehicle auxiliary equipment) is installed. The auxiliary battery consumes electric power during operation of the auxiliary device during traveling, and also consumes electric power due to dark current of the control device even when the vehicle is stopped. Therefore, appropriate charging is required. In the case of a gasoline vehicle, the auxiliary battery can be appropriately charged during traveling. However, since the electric vehicle is shorter in running time than the gasoline vehicle due to its nature, the charging time required for charging the auxiliary battery cannot be secured unlike the gasoline vehicle. Therefore, in the electric vehicle, the auxiliary battery is charged at the same time when the main battery is charged.
【０００３】ところで、ガソリン自動車における補機用
バッテリの規格電圧として１２Ｖのものが知られている
が、この補機用バッテリを充電する場合には、１４．５
Ｖ（第１の規定電圧）と１３．４Ｖ（第２の規定電圧）
の２種類の充電電圧が広く用いられている。しかし、電
気自動車においてメインバッテリをフル充電（満充電）
するには長時間（例えば８時間程度）を必要とする。こ
のため、補機用バッテリを上記第１の規定電圧である１
４．５Ｖでメインバッテリとともに充電すると、メイン
バッテリ充電完了時に補機用バッテリは過充電となるお
それがある。このため、補機用バッテリの充電は、充電
電圧を第２の規定電圧である１３．４Ｖに抑えて、メイ
ンバッテリと併せて行うようにしている。By the way, it is known that the standard voltage of the auxiliary battery in a gasoline automobile is 12V. When charging the auxiliary battery, the standard voltage is 14.5.
V (first specified voltage) and 13.4V (second specified voltage)
The two types of charging voltage are widely used. However, in an electric vehicle, the main battery is fully charged (fully charged).
This requires a long time (for example, about 8 hours). Therefore, the auxiliary battery is set to the first specified voltage 1
If the main battery is charged at 4.5V, the auxiliary battery may be overcharged when the main battery is completely charged. Therefore, the auxiliary battery is charged together with the main battery by suppressing the charging voltage to 13.4 V which is the second specified voltage.
【０００４】[0004]
【発明が解決しようとする課題】しかし、メインバッテ
リの充電中に、メインバッテリの温度が一定値以上に上
昇すると、メインバッテリを冷却するための冷却装置が
作動する。この冷却装置が作動すると、補機用バッテリ
に供給される電力に電圧降下が発生するため、第２の規
定電圧で充電していると、補機用バッテリにほとんど充
電されない場合がある。However, if the temperature of the main battery rises above a certain value while the main battery is being charged, the cooling device for cooling the main battery operates. When this cooling device operates, a voltage drop occurs in the electric power supplied to the auxiliary battery, so that when the battery is charged at the second specified voltage, the auxiliary battery may be hardly charged.
【０００５】また、上記した第１、第２の規定電圧以外
の適正な電圧値を求めて、この電圧値で補機用バッテリ
の充電を行う方法も考えられる。しかし、補機用バッテ
リの適正電圧値は、電解液の比重や温度、圧力等の様々
な要素に起因するため、求めることが非常に困難であ
る。従って、ガソリン自動車の場合に広く適用されてい
る２つの規定電圧を用いて充電する方法が現実的であ
る。そこで、この発明は、車両補機用蓄電池に対する安
全性を確保しつつ、確実に充電することのできる車両補
機用蓄電池の充電方法を提供するものである。A method is also conceivable in which an appropriate voltage value other than the above-mentioned first and second specified voltages is obtained and the auxiliary battery is charged with this voltage value. However, it is very difficult to find the appropriate voltage value of the auxiliary battery because it depends on various factors such as the specific gravity of the electrolyte solution, temperature, and pressure. Therefore, a method of charging using two specified voltages, which is widely applied in the case of gasoline vehicles, is practical. Therefore, the present invention provides a charging method for a vehicle auxiliary storage battery that can be reliably charged while ensuring safety for the vehicle auxiliary storage battery.
【０００６】[0006]
【課題を解決するための手段】上記課題を解決するため
に、請求項１に記載した発明は、電気自動車の走行モー
タ駆動用蓄電池（例えば、実施形態におけるメインバッ
テリ２２）と、前記電気自動車の補機類に駆動用電力を
供給する車両補機用蓄電池（例えば、実施形態における
補機用バッテリ２６）とを備えた電気自動車（例えば、
実施形態における電気自動車２０）の車両補機用蓄電池
の充電方法であって、前記電気自動車の走行モータ駆動
用蓄電池の充電開始に基づき車両補機用蓄電池の充電を
開始直後又は同時に車両補機用蓄電池の充電を開始し
て、前記車両補機用蓄電池を前記車両補機用蓄電池の充
電開始から規定時間、第１の規定電圧（例えば、実施形
態における１４．５Ｖ）で充電し、前記規定時間経過後
から車両補機用蓄電池に、前記第１の規定電圧よりも低
い第２の規定電圧（例えば、実施形態における１３．４
Ｖ）を印加することを特徴とする。このように構成する
と、まず走行モータ駆動用蓄電池充電開始に基づき車両
補機用蓄電池を第１の規定電圧で充電するため、必要な
電力を確実に充電することができる。そして、規定時間
経過後は第２の規定電圧で車両補機用蓄電池を充電する
為、車両補機用蓄電池の過充電を防止して、安全性を確
保しつつ走行モータ駆動用蓄電池と併せて充電を行うこ
とができる。前記規定時間は、車両補機用蓄電池に必要
な充電を行うための時間であって、走行モータ駆動用蓄
電池の満充電時間（例えば、約８時間）の約半分から４
分の１程度の時間（例えば約２〜４時間）とすることが
好ましい。In order to solve the above-mentioned problems, the invention described in claim 1 relates to a storage battery for driving a traveling motor of an electric vehicle (for example, a main battery 22 in the embodiment) and an electric vehicle. An electric vehicle (for example, an auxiliary vehicle storage battery (for example, an auxiliary machine battery 26 in the embodiment) that supplies driving power to the auxiliary machines) (for example,
A method for charging a storage battery for a vehicle accessory of an electric vehicle 20) according to an embodiment, wherein the storage battery for a vehicle accessory is charged immediately after or at the same time as the charging of the storage battery for driving a drive motor of the electric vehicle is started. The charging of the storage battery is started, the storage battery for the vehicle auxiliary equipment is charged at a first specified voltage (for example, 14.5 V in the embodiment) for a specified time from the start of charging the storage battery for the vehicle auxiliary equipment, and the specified time is reached. After a lapse of time, a second specified voltage lower than the first specified voltage (for example, 13.4 in the embodiment is applied to the storage battery for vehicle accessories).
V) is applied. According to this structure, first, the storage battery for the vehicle auxiliary equipment is charged with the first specified voltage based on the start of charging the storage battery for driving the traveling motor, so that the necessary electric power can be surely charged. Then, after the lapse of the specified time, the storage battery for the vehicle auxiliary device is charged with the second specified voltage, so that the overcharge of the storage battery for the vehicle auxiliary device is prevented, and safety is ensured together with the storage battery for driving the traveling motor. Can be charged. The specified time is a time required to charge the storage battery for vehicle accessories, and is about half to 4 times the full charge time (for example, about 8 hours) of the storage battery for driving the traveling motor.
It is preferable that the time is about a fraction (for example, about 2 to 4 hours).
【０００７】請求項２に記載した発明は、前記規定時間
の経過後に、規定の補機負荷（例えば、実施形態におけ
る冷却装置３２）の作動に応じて前記第２の規定電圧か
ら前記第１の規定電圧に変更することを特徴とする。こ
のように構成すると、上記した補機負荷の作動により電
圧降下が発生しても、第１の規定電圧に変更すること
で、車両補機用蓄電池を確実に充電することができるた
め、充電効率を高めることができる。According to a second aspect of the present invention, after the stipulated time has elapsed, the second stipulated voltage is changed to the first stipulated voltage according to the operation of a stipulated auxiliary machine load (for example, the cooling device 32 in the embodiment). It is characterized by changing to a specified voltage. According to this structure, even if a voltage drop occurs due to the operation of the above-mentioned auxiliary load, it is possible to reliably charge the vehicle auxiliary battery by changing the voltage to the first specified voltage. Can be increased.
【０００８】[0008]
【発明の実施の形態】以下、この発明の実施形態におけ
る電気自動車の車両補機用蓄電池の充電方法を図面と共
に説明する。図１は電気自動車のシステムブロック図で
ある。電気自動車２０は、走行用のメインバッテリ（走
行モータ駆動用蓄電池）２２と、補機類２４を駆動する
ための補機用バッテリ（車両補機用蓄電池）２６と、を
備えている。前記電気自動車２０は、メインバッテリ２
２や補機用バッテリ２６を充電するための充電器２８を
設けている。前記充電器２８は高圧ライン２９によりメ
インバッテリ２２と接続し、当該メインバッテリ２２に
高電圧（例えば、数１００Ｖ）の電力を供給するように
している。また、前記充電器２８は、前記補機用バッテ
リ２６にＤＣ／ＤＣコンバータ（ダウンバータ）３０を
介して接続している。より詳細には、充電器２８は高圧
ライン２９によりＤＣ／ＤＣコンバータ３０と接続し、
当該ＤＣ／ＤＣコンバータ３０は低圧ライン３１により
補機用バッテリ２６に接続している。これにより、充電
器２８から供給される高電圧の電力（例えば、数百Ｖ）
がＤＣ／ＤＣコンバータ３０により低電圧に変換され、
この低電圧の電力が低圧ライン３１により補機用バッテ
リ２６に供給される。本実施形態においては、ＤＣ／Ｄ
Ｃコンバータ３０で変換する電圧値は、ガソリン自動車
で広く適用される二つの規定値、すなわち第１の規定値
（１４．５Ｖ）と第２の規定値（１３．４Ｖ）を用いて
いる。また、ＤＣ／ＤＣコンバータ３０は、補機用バッ
テリ２６の他に、補機類２４と冷却装置３２とに、それ
ぞれ低圧ライン３１を介して並列的に接続している。従
って、低圧ライン３１から低電圧の電力が、補機用バッ
テリ２６のみならず、前記補機類２４や冷却装置３２に
も供給される。前記冷却装置３２は冷却ファンやウォー
ターポンプ（Ｗ／Ｐ）等から構成され、メインバッテリ
２２が一定以上の温度になったときに冷却するためのも
のである。BEST MODE FOR CARRYING OUT THE INVENTION Hereinafter, a method of charging a storage battery for vehicle accessories of an electric vehicle according to an embodiment of the present invention will be described with reference to the drawings. FIG. 1 is a system block diagram of an electric vehicle. The electric vehicle 20 includes a main battery (a storage battery for driving a traveling motor) 22 for traveling, and a battery for an auxiliary machine (a storage battery for vehicle auxiliary machines) 26 for driving the auxiliary machines 24. The electric vehicle 20 includes a main battery 2
A charger 28 for charging the battery 2 and the auxiliary battery 26 is provided. The charger 28 is connected to the main battery 22 via a high voltage line 29 so as to supply the main battery 22 with high voltage (for example, several hundreds of volts) electric power. Further, the charger 28 is connected to the auxiliary battery 26 via a DC / DC converter (downverter) 30. More specifically, the charger 28 is connected to the DC / DC converter 30 by a high voltage line 29,
The DC / DC converter 30 is connected to the auxiliary battery 26 by a low voltage line 31. As a result, the high-voltage power supplied from the charger 28 (for example, several hundreds V)
Is converted into a low voltage by the DC / DC converter 30,
This low voltage electric power is supplied to the auxiliary battery 26 by the low voltage line 31. In this embodiment, DC / D
The voltage value converted by the C converter 30 uses two specified values widely applied to gasoline automobiles, that is, a first specified value (14.5V) and a second specified value (13.4V). The DC / DC converter 30 is connected in parallel to the auxiliary machinery battery 26, the auxiliary machinery 24, and the cooling device 32 via the low-voltage lines 31, respectively. Therefore, low-voltage power is supplied from the low-voltage line 31 not only to the auxiliary battery 26 but also to the auxiliary devices 24 and the cooling device 32. The cooling device 32 is composed of a cooling fan, a water pump (W / P), and the like, and is for cooling the main battery 22 when the temperature exceeds a certain temperature.
【０００９】電気自動車２０には中央制御装置（ＭＧ／
ＥＣＵ）３４が設けてあり、この中央制御装置３４は図
１に示した各機器に接続して制御信号の送受信を行う。
具体的には、前記中央制御装置３４はメインバッテリ２
２からバッテリ情報（電圧、電流、温度等）を受信す
る。また、前記中央制御装置３０は、ＤＣ／ＤＣコンバ
ータ３０に第１または第２の規格電圧への電圧変換指令
を、充電器２８に充電指令を、そして冷却装置３２に作
動指令を、それぞれ送信する。The electric vehicle 20 has a central control unit (MG /
An ECU) 34 is provided, and this central control unit 34 is connected to each device shown in FIG. 1 to send and receive control signals.
Specifically, the central controller 34 uses the main battery 2
2 receives battery information (voltage, current, temperature, etc.). Further, the central control device 30 transmits a voltage conversion command to the DC / DC converter 30 to the first or second standard voltage, a charging command to the charger 28, and an operation command to the cooling device 32, respectively. .
【００１０】このように構成した電気自動車２０におい
て、補機用バッテリ２６の充電は以下のように行われ
る。まず、電気自動車２０停止時に、メインバッテリ２
２は中央制御装置３４に、前記バッテリ情報を送信す
る。前記中央制御装置３０は、前記バッテリ情報に基づ
き、充電器２８に充電指令を送信する。充電器２８は、
高圧ライン２９により高電圧の電力をメインバッテリ２
２に供給するとともに、ＤＣ／ＤＣコンバータ３０にも
電力を供給する。また、このとき、中央制御装置３４は
ＤＣ／ＤＣコンバータ３０に対して、供給された電力の
電圧（高電圧）を第１または第２の規定電圧（低電圧）
に変換するように電圧指令を送信している。ＤＣ／ＤＣ
コンバータ３０はこの電圧指令に基づき、前記高電圧を
前記低電圧に変換して、低圧ライン３１により補機用バ
ッテリ２６や補機類２４、冷却装置３２に供給する。な
お、このとき冷却装置３２は作動していない。In the thus constructed electric vehicle 20, the auxiliary battery 26 is charged as follows. First, when the electric vehicle 20 is stopped, the main battery 2
2 transmits the battery information to the central controller 34. The central controller 30 transmits a charging command to the charger 28 based on the battery information. The charger 28 is
High voltage power is supplied to the main battery 2 by the high voltage line 29.
2, and also supplies power to the DC / DC converter 30. Further, at this time, the central control unit 34 supplies the voltage (high voltage) of the supplied electric power to the DC / DC converter 30 with the first or second specified voltage (low voltage).
The voltage command is transmitted to be converted into. DC / DC
Based on this voltage command, the converter 30 converts the high voltage into the low voltage, and supplies the low voltage line 31 to the auxiliary battery 26, the auxiliary devices 24, and the cooling device 32. At this time, the cooling device 32 is not operating.
【００１１】以下、より詳細に説明する。図２は本実施
形態における補機用バッテリ２６の充電工程を示すフロ
ーである。図３は本実施形態における補機用バッテリの
充電電圧または温度と、時間との関係を示すグラフであ
る。図２のステップＳ１０２に示すように、メインバッ
テリ２２の充電を開始すると、ステップＳ１０４に示す
ように、タイマーが作動する。そして、ステップＳ１０
６に示すように、タイマー作動時からの経過時間を判定
して、規定時間（例えば２時間）以下であれば、ステッ
プＳ１０８に示すように、補機用バッテリ２６を第１の
規定電圧で充電し、上記したステップＳ１０４の処理に
戻る。また、ステップＳ１０６の処理において、規定時
間以上であれば、ステップＳ１１０の処理に進む。この
ように、メインバッテリ２２の充電開始に基づき、補機
用バッテリ２６の充電を上記した第１の規定電圧で行う
ようにしたため、メインバッテリ２２の充電が途中で終
わった場合であっても、補機用バッテリ２６に必要な電
力を確実に充電することができる。The details will be described below. FIG. 2 is a flow showing a charging process of the auxiliary battery 26 in the present embodiment. FIG. 3 is a graph showing the relationship between the charging voltage or temperature of the auxiliary battery in this embodiment and time. When the charging of the main battery 22 is started as shown in step S102 of FIG. 2, the timer is activated as shown in step S104. Then, step S10
As shown in FIG. 6, if the elapsed time from the time when the timer is activated is determined and it is less than the specified time (for example, 2 hours), the auxiliary battery 26 is charged with the first specified voltage as shown in step S108. Then, the process returns to step S104 described above. In the process of step S106, if the time is equal to or longer than the specified time, the process proceeds to step S110. In this way, since the auxiliary battery 26 is charged at the first specified voltage based on the start of charging the main battery 22, even if the main battery 22 is charged halfway, It is possible to reliably charge the auxiliary battery 26 with the necessary electric power.
【００１２】ステップＳ１１０においては、冷却装置３
２が作動しているかどうかを判定する。図１に示したよ
うに、メインバッテリ２２のバッテリ情報は中央制御装
置３４に送信される。図３（ｂ）に示したように、メイ
ンバッテリ２２の温度が上昇して、冷却開始温度まで達
した場合には、中央制御装置３４から冷却装置３２に作
動指令が送信され、これにより冷却装置３２が作動する
（図１参照）。冷却装置３２が作動していない場合に
は、補機用バッテリ２６を第２の規定電圧（１３．４
Ｖ）で充電する。冷却装置３２が作動している場合に
は、電圧降下が発生するため第２の規定電圧では充電が
出来ないおそれがある。このため、冷却装置３２が作動
している場合には、上記したステップＳ１０８の処理に
戻って第１の規定電圧で充電を行う（図３（ａ）参
照）。従って、冷却装置３２作動時にも確実に充電する
ことができるため、充電効率を高めることができ、これ
により十分な電力を充電することができる。また、冷却
装置３２が作動していない場合には、ステップＳ１１２
に示したように、第２の規定電圧で充電を行う。In step S110, the cooling device 3
Determine if 2 is working. As shown in FIG. 1, the battery information of the main battery 22 is transmitted to the central controller 34. As shown in FIG. 3B, when the temperature of the main battery 22 rises and reaches the cooling start temperature, an operation command is transmitted from the central control device 34 to the cooling device 32, which causes the cooling device to operate. 32 is activated (see FIG. 1). When the cooling device 32 is not operating, the auxiliary battery 26 is set to the second specified voltage (13.4).
V) to charge. When the cooling device 32 is operating, a voltage drop may occur, so charging may not be possible at the second specified voltage. Therefore, when the cooling device 32 is operating, the process returns to the above-described step S108 and charging is performed at the first specified voltage (see FIG. 3A). Therefore, since the charging can be surely performed even when the cooling device 32 is operating, the charging efficiency can be improved, and thus sufficient electric power can be charged. If the cooling device 32 is not operating, step S112
As shown in, the charging is performed at the second specified voltage.
【００１３】ステップＳ１１２に示した第２の規定電圧
で充電を行った後、ステップＳ１１４のようにメインバ
ッテリ２２の充電が終了したかどうかを判定する。メイ
ンバッテリ２２の充電が終了していなければ、上記した
ステップＳ１０４の処理に戻る。メインバッテリ２２の
充電が終了した場合には、ステップＳ１１６に示したよ
うに冷却装置３２が作動しているかどうかを判定する。
冷却装置３２が作動している場合には、ステップＳ１０
０で上記した場合と同様に、電圧降下により補機用バッ
テリ２６に十分充電がされていないおそれがある。この
ため、ステップＳ１０８の処理に戻って、第１の規定電
圧で充電を行う。従って、メインバッテリ２２の残容量
（ＳＯＧ）に応じて短時間で満充電が完了した場合であ
っても、補機用バッテリ２６に必要電力を確実に充電す
ることができる。また、ステップＳ１１６において冷却
装置３２が停止している場合には、ステップＳ１１８に
示したように、タイマーをリセットして、ステップＳ１
２０のように、補機用バッテリ２６の充電を終了する。After charging with the second specified voltage shown in step S112, it is determined in step S114 whether the main battery 22 has been charged. If the charging of the main battery 22 is not completed, the process returns to step S104 described above. When the charging of the main battery 22 is completed, it is determined whether the cooling device 32 is operating as shown in step S116.
If the cooling device 32 is operating, step S10
As in the case of 0, the auxiliary battery 26 may not be sufficiently charged due to the voltage drop. Therefore, the process returns to step S108 and charging is performed at the first specified voltage. Therefore, even when the full charge is completed in a short time according to the remaining capacity (SOG) of the main battery 22, the auxiliary battery 26 can be reliably charged with the required power. If the cooling device 32 is stopped in step S116, the timer is reset as shown in step S118 and step S1 is performed.
As in 20, the charging of the auxiliary battery 26 is completed.
【００１４】なお、図３（ａ）において、実線Ａは本実
施形態における充電方法を示し、点線Ｃは従来の充電方
法を示している。図３（ａ）に示したように、本実施形
態においては、補機用バッテリ２６に必要な電力を確保
することができるとともに、補機用バッテリ２６の過充
電を防止して安全性を確保している。なお、実施形態に
おいては、冷却装置３２作動時に第１の規定電圧で充電
する場合について説明したが、これに限らず、例えば図
３（ａ）の一点鎖線Ｂに示したように、最初の規定時間
のみを第１の規定値で充電する、すなわちステップＳ１
１０やステップＳ１１６の処理を省略してもよい。In FIG. 3 (a), the solid line A shows the charging method in this embodiment, and the dotted line C shows the conventional charging method. As shown in FIG. 3A, in the present embodiment, the electric power required for the auxiliary battery 26 can be ensured, and the auxiliary battery 26 is prevented from being overcharged to ensure safety. is doing. In addition, in the embodiment, the case where the cooling device 32 is charged at the first specified voltage when the cooling device 32 is operated has been described. However, the present invention is not limited to this. For example, as shown by a dashed line B in FIG. Only the time is charged with the first specified value, that is, step S1
You may omit 10 and the process of step S116.
【００１５】[0015]
【発明の効果】以上説明したように、請求項１に記載し
た発明によれば、必要な電力を確実に充電することがで
きる。そして、車両補機用蓄電池の過充電を防止して、
安全性を確保しつつ走行モータ駆動用蓄電池と併せて充
電を行うことができる。また、請求項２に記載した発明
によれば、車両補機用蓄電池を確実に充電することがで
きるため、充電効率を高めることができる。As described above, according to the invention described in claim 1, the necessary electric power can be surely charged. And prevent the overcharge of the vehicle auxiliary battery,
It is possible to charge together with the storage battery for driving the traveling motor while ensuring safety. Further, according to the invention described in claim 2, the storage battery for the vehicle accessory can be surely charged, so that the charging efficiency can be improved.
【図１】 図１はこの発明の実施形態における電気自動
車のシステムブロック図である。FIG. 1 is a system block diagram of an electric vehicle according to an embodiment of the present invention.
【図２】 図２はこの発明の実施形態における補機用バ
ッテリの充電工程を示すフローである。FIG. 2 is a flow chart showing a process of charging an auxiliary battery according to the embodiment of the present invention.
【図３】 図３はこの発明の実施形態における補機用バ
ッテリの充電電圧または温度と、時間との関係を示すグ
ラフである。FIG. 3 is a graph showing the relationship between the charging voltage or temperature of the auxiliary battery and the time in the embodiment of the present invention.
２０ 電気自動車 ２２ メインバッテリ ２６ 補機用バッテリ ３２ 冷却装置 20 electric vehicles 22 Main battery 26 Battery for auxiliary equipment 32 Cooling device
───────────────────────────────────────────────────── フロントページの続き (51)Int.Cl.7 識別記号 ＦＩ テーマコート゛(参考） Ｈ０２Ｊ 7/10 Ｈ０２Ｊ 7/10 Ｂ Ｆターム(参考） 3D035 AA05 BA01 5G003 AA01 BA01 CA12 CA14 CB01 CC02 GB03 GC05 5H030 AA03 AS08 BB04 FF43 FF51 5H115 PA00 PA08 PC06 PG04 PI15 PI16 PV02 SE06 TU16 ─────────────────────────────────────────────────── ─── Continuation of front page (51) Int.Cl. 7 Identification code FI theme code (reference) H02J 7/10 H02J 7/10 BF term (reference) 3D035 AA05 BA01 5G003 AA01 BA01 CA12 CA14 CB01 CC02 GB03 GC05 5H030 AA03 AS08 BB04 FF43 FF51 5H115 PA00 PA08 PC06 PG04 PI15 PI16 PV02 SE06 TU16
Claims (2)
と、前記電気自動車の車両補機類に駆動用電力を供給す
る車両補機用蓄電池とを備えた電気自動車の車両補機用
蓄電池の充電方法であって、 前記電気自動車の走行モータ駆動用蓄電池の充電開始直
後又は同時に車両補機用蓄電池の充電を開始して、前記
車両補機用蓄電池を前記車両補機用蓄電池の充電開始か
ら規定時間、第１の規定電圧で充電し、前記規定時間経
過後から車両補機用蓄電池に、前記第１の規定電圧より
も低い第２の規定電圧を印加することを特徴とする電気
自動車の車両補機用蓄電池の充電方法。1. A method of charging a storage battery for a vehicle accessory of an electric vehicle, comprising: a storage battery for driving a running motor of the electric vehicle; and a storage battery for a vehicle accessory that supplies driving power to vehicle accessories of the electric vehicle. That is, immediately after the charging of the storage battery for driving the traveling motor of the electric vehicle is started or at the same time, the charging of the storage battery for the vehicle auxiliary device is started, and the storage battery for the vehicle auxiliary device is started for a specified time from the start of charging the storage battery for the vehicle auxiliary device. A second auxiliary voltage lower than the first specified voltage is applied to the storage battery for vehicle accessories after the specified time has elapsed, and the vehicle auxiliary device of the electric vehicle is characterized in that: Method of charging storage battery for aircraft.
荷の作動に応じて前記第２の規定電圧から前記第１の規
定電圧に変更することを特徴とする請求項１に記載の電
気自動車の車両補機用蓄電池の充電方法。2. The electricity according to claim 1, wherein after the lapse of the specified time, the second specified voltage is changed to the first specified voltage according to the operation of a specified auxiliary load. A method of charging a storage battery for an automobile vehicle accessory.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2001222797A JP2003037903A (en) | 2001-07-24 | 2001-07-24 | Charging method for storage battery for vehicular accessory of electric vehicle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2001222797A JP2003037903A (en) | 2001-07-24 | 2001-07-24 | Charging method for storage battery for vehicular accessory of electric vehicle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JP2003037903A true JP2003037903A (en) | 2003-02-07 |
Family
ID=19056221
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2001222797A Withdrawn JP2003037903A (en) | 2001-07-24 | 2001-07-24 | Charging method for storage battery for vehicular accessory of electric vehicle |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2003037903A (en) |
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| JP2006050799A (en) * | 2004-08-05 | 2006-02-16 | Honda Motor Co Ltd | Control method for voltage converter |
| JP2009201282A (en) * | 2008-02-22 | 2009-09-03 | Daihatsu Motor Co Ltd | Charging system for vehicle |
| WO2009129295A3 (en) * | 2008-04-18 | 2010-01-28 | The Raymond Corporation | System for managing operation of industrial vehicles |
| WO2010116521A1 (en) | 2009-04-10 | 2010-10-14 | トヨタ自動車株式会社 | Automobile and method for controlling said automobile |
| JP2014027864A (en) * | 2012-07-30 | 2014-02-06 | Hyundai Motor Company Co Ltd | Low voltage dc converter active control system of electric automobile |
| CN104395134A (en) * | 2012-06-28 | 2015-03-04 | 三菱自动车工业株式会社 | Charge control device for electric vehicle |
| JP2017073972A (en) * | 2016-12-16 | 2017-04-13 | 三菱自動車工業株式会社 | Charge control device |
| KR20180045311A (en) * | 2016-10-25 | 2018-05-04 | 현대자동차주식회사 | Method and apparatus for charging auxiliary battery of vehicle including driving motor |
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2001
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2006050799A (en) * | 2004-08-05 | 2006-02-16 | Honda Motor Co Ltd | Control method for voltage converter |
| JP4545514B2 (en) * | 2004-08-05 | 2010-09-15 | 本田技研工業株式会社 | Voltage converter control method |
| JP2009201282A (en) * | 2008-02-22 | 2009-09-03 | Daihatsu Motor Co Ltd | Charging system for vehicle |
| WO2009129295A3 (en) * | 2008-04-18 | 2010-01-28 | The Raymond Corporation | System for managing operation of industrial vehicles |
| US8515629B2 (en) | 2008-04-18 | 2013-08-20 | The Raymond Corporation | System for managing operation of an industrial vehicle in restricted areas |
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| WO2010116521A1 (en) | 2009-04-10 | 2010-10-14 | トヨタ自動車株式会社 | Automobile and method for controlling said automobile |
| US9018895B2 (en) | 2009-04-10 | 2015-04-28 | Toyota Jidosha Kabushiki Kaisha | Motor vehicle and control method thereof |
| CN104395134A (en) * | 2012-06-28 | 2015-03-04 | 三菱自动车工业株式会社 | Charge control device for electric vehicle |
| EP2868517A4 (en) * | 2012-06-28 | 2016-05-11 | Mitsubishi Motors Corp | Charge control device for electric vehicle |
| CN104395134B (en) * | 2012-06-28 | 2016-11-16 | 三菱自动车工业株式会社 | Battery charge controller for electric vehicle |
| US9834101B2 (en) | 2012-06-28 | 2017-12-05 | Mitsubishi Jidosha Kogyo Kabushiki Kaisha | Charge control device for electrically driven vehicle |
| CN103568855A (en) * | 2012-07-30 | 2014-02-12 | 现代自动车株式会社 | Active control system for low dc/dc converter in an electric vehicle |
| US9428122B2 (en) | 2012-07-30 | 2016-08-30 | Hyundai Motor Company | Active control system for low DC/DC converter in an electric vehicle |
| JP2014027864A (en) * | 2012-07-30 | 2014-02-06 | Hyundai Motor Company Co Ltd | Low voltage dc converter active control system of electric automobile |
| CN103568855B (en) * | 2012-07-30 | 2017-11-21 | 现代自动车株式会社 | The active control system of low voltage DC/DC converters in electric vehicle |
| DE102012222102B4 (en) | 2012-07-30 | 2022-10-06 | Hyundai Motor Company | ACTIVE CONTROL SYSTEM FOR A LOW VOLTAGE DC-DC CONVERTER IN AN ELECTRIC VEHICLE |
| KR20180045311A (en) * | 2016-10-25 | 2018-05-04 | 현대자동차주식회사 | Method and apparatus for charging auxiliary battery of vehicle including driving motor |
| JP2017073972A (en) * | 2016-12-16 | 2017-04-13 | 三菱自動車工業株式会社 | Charge control device |
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