JP4090423B2

JP4090423B2 - VEHICLE HAVING CHARGE FUNCTION AND CHARGING METHOD OF TERMINAL USING VEHICLE HAVING CHARGE FUNCTION

Info

Publication number: JP4090423B2
Application number: JP2003366736A
Authority: JP
Inventors: 聡安見
Original assignee: Panasonic Corp; Matsushita Electric Industrial Co Ltd
Current assignee: Panasonic Corp; Panasonic Holdings Corp
Priority date: 2003-10-28
Filing date: 2003-10-28
Publication date: 2008-05-28
Anticipated expiration: 2023-10-28
Also published as: JP2005137034A

Description

本発明は、電動アシスト自転車等の充電機能を有する車両、および、この車両に搭載された車載充電器を用いて、盗難対策用の携帯端末や携帯電話等を充電する方法に関するものである。 The present invention relates to a vehicle having a charging function, such as an electrically assisted bicycle, and a method of charging a portable terminal, a mobile phone, etc. for theft prevention using an in-vehicle charger mounted on the vehicle.

従来、例えば、自動二輪車の盗難対策として、位置検出用の携帯端末を自動二輪車の車体に取付ける技術がある（特許文献１参照）。すなわち、図７に示すように、上記盗難対策用の携帯端末５１は、ＧＰＳ等の測位システムを利用して、盗難の際には使用者や管理センタ等に現在位置を把握できるように自動的に通報を行う装置であり、車体に搭載された車載充電器５２によって充電される。 Conventionally, for example, as a countermeasure against theft of a motorcycle, there is a technique of attaching a portable terminal for position detection to a vehicle body of a motorcycle (see Patent Document 1). That is, as shown in FIG. 7, the portable terminal 51 for anti-theft measures automatically uses a positioning system such as GPS so that the user or management center can grasp the current position in the case of theft. Is charged by an in-vehicle charger 52 mounted on the vehicle body.

上記車載充電器５２には、車載バッテリ５３の電圧を変換して上記携帯端末５１の内蔵バッテリ５４へ出力する変圧器５５と、携帯端末５１との接続をオン・オフするスイッチ５６と、このスイッチ５６を制御する制御機能手段５７とが具備されている。上記車載バッテリ５３は変圧器５５の一次側に接続されており、携帯端末５１は変圧器５５の二次側に着脱自在に接続される。 The in-vehicle charger 52 includes a transformer 55 that converts the voltage of the in-vehicle battery 53 and outputs the voltage to the built-in battery 54 of the portable terminal 51, a switch 56 that turns on / off the connection with the portable terminal 51, and the switch Control function means 57 for controlling 56 is provided. The on-vehicle battery 53 is connected to the primary side of the transformer 55, and the portable terminal 51 is detachably connected to the secondary side of the transformer 55.

これによると、携帯端末５１を車載充電器５２に接続した状態で、制御機能手段５７は、所定時間（例えば３６時間）間隔毎にスイッチ５６をオンに切換えて、携帯端末５１の内蔵バッテリ５４が満充電になるまで充電を行う。そして、満充電になるとスイッチ５６をオフに切換え、所定時間（３６時間）後の次回の充電まで待機する。尚、上記所定時間（３６時間）は、制御機能手段５７に備えられているタイマー機能によって計測される。 According to this, in a state where the portable terminal 51 is connected to the in-vehicle charger 52, the control function means 57 switches on the switch 56 every predetermined time (for example, 36 hours), and the built-in battery 54 of the portable terminal 51 is turned on. Charge until fully charged. Then, when the battery is fully charged, the switch 56 is turned off and the system waits for the next charging after a predetermined time (36 hours). The predetermined time (36 hours) is measured by a timer function provided in the control function means 57.

ここで、この構成においては、携帯端末５１が常に車体に固定されている。しかし、このように携帯端末５１が常に車体に固定されている構成であると、携帯端末５１により、自動二輪車の盗難時において自動二輪車の現在位置を把握する機能しか利用できない短所がある。 Here, in this configuration, the portable terminal 51 is always fixed to the vehicle body. However, when the portable terminal 51 is always fixed to the vehicle body as described above, there is a disadvantage that the portable terminal 51 can use only the function of grasping the current position of the motorcycle when the motorcycle is stolen.

これに対処する方法として、携帯端末５１を他の利用用途にも適応できるように、携帯端末５１を自動二輪車の所有者などが車体から取り外し可能に構成し、例えば、老人や子供などに携帯端末５１を持たせることができるように構成することが考えられる。この構成によれば、老人や子供などの居場所の確認にも使用できることとなって、使用用途が広がることになる。 As a method for coping with this, the portable terminal 51 is configured so that the owner of the motorcycle can be detached from the vehicle body so that the portable terminal 51 can be adapted to other usages. It is conceivable to configure so that 51 can be provided. According to this configuration, it can be used for confirming whereabouts of elderly people, children, and the like, and the usage is expanded.

しかしながら、このような使い方をする場合、上記従来形式では、携帯端末５１を一旦車体から取り外して使用した後、再び車体に装着した際、携帯端末５１の内蔵バッテリ５４のバッテリ残量が殆どなくなっている場合でも、所定時間（３６時間）間隔毎の充電開始時間ではなかった場合には、次回の充電開始時間まで充電が行われず、その結果、この際に自動二輪車が盗難された時でも、次回の充電開始時間に達するまでは、携帯端末５１の機能が働かないおそれがある。
特開２００２−３６２４４８ However, when using in such a manner, in the above-described conventional format, when the mobile terminal 51 is once detached from the vehicle body and then attached to the vehicle body, the battery remaining in the built-in battery 54 of the mobile terminal 51 is almost exhausted. Even if it is not the charging start time at every predetermined time (36 hours) interval, charging is not performed until the next charging start time. As a result, even if the motorcycle is stolen at this time, Until the charging start time is reached, the function of the portable terminal 51 may not work.
JP2002-362448

本発明は、端末を車体から着脱自在とした場合でも、端末を長時間にわたって使用できないような不具合を最小限に抑えることができる充電機能を有する車両およびこの車両を用いた端末の充電方法を提供することを目的とする。 The present invention provides a vehicle having a charging function capable of minimizing a problem that the terminal cannot be used for a long time even when the terminal is detachable from the vehicle body, and a charging method of the terminal using the vehicle. The purpose is to do.

上記目的を達成するために、本第１発明は、車載電池と、
車体に対して着脱自在で且つ端末電池を内蔵した端末と、
上記車載電池の電力を使って車体に装着された端末の端末電池を充電する車載充電器と、
上記車載充電器を制御する制御手段とが備えられ、
車載電池は車載充電器の一次側に接続され、
車載充電器の二次側に、端末を接続するための＋端子と−端子とが設けられ、
車載充電器に、車載充電器の二次側へ出力される充電電流を検出する電流検出手段が設けられ、
上記制御手段は、所定の出力電圧のパルスを所定の短時間間隔毎に車載充電器の二次側へ出力するパルス充電を行い、上記電流検出手段が充電電流を検出しない状態から所定の充電電流を検出した場合、端末が車載充電器の上記両端子に接続されたと判断して、上記充電電流を所定の通常充電時間にわたり車載充電器の二次側へ出力する通常充電を行い、上記電流検出手段が所定の充電電流よりも低い電流を検出している場合、端末が上記通常充電後も車載充電器に継続して装着されていると判断して、上記通常充電を所定時間間隔毎に間欠的に行うとともに、これら通常充電間において上記パルス充電を継続するものである。 In order to achieve the above object, the first invention comprises an in-vehicle battery,
A terminal that is detachable from the vehicle body and has a built-in terminal battery;
An in-vehicle charger for charging the terminal battery of the terminal mounted on the vehicle body using the electric power of the in-vehicle battery ,
And a control means for controlling the on-vehicle charger,
The car battery is connected to the primary side of the car charger,
On the secondary side of the in-vehicle charger, a + terminal and a-terminal for connecting a terminal are provided,
The on-vehicle charger is provided with current detection means for detecting a charging current output to the secondary side of the on-vehicle charger,
The control means performs pulse charging for outputting a pulse of a predetermined output voltage to the secondary side of the in-vehicle charger at predetermined short-time intervals, and the predetermined current is detected from the state where the current detection means does not detect the charging current. Is detected, the terminal is connected to both terminals of the in-vehicle charger, and the charging current is output to the secondary side of the in-vehicle charger for a predetermined normal charging time, and the current detection is performed. When the means detects a current lower than a predetermined charging current, it is determined that the terminal is continuously attached to the on-vehicle charger after the normal charging, and the normal charging is intermittently performed at predetermined time intervals. And the above pulse charge is continued between these normal charges .

これによると、端末を車載充電器に接続していない場合、パルス充電を行っていても充電電流は車載充電器から端末側へ流れないため、端末が車載充電器に接続されていないと判断され、そのままパルス充電のみが行われる。これにより、車載電池から車載充電器へ入力される入力電流は僅かな値になるため、車載電池の消費電力が低減され、車載電池が長持ちする。 According to this, when the terminal is not connected to the in-vehicle charger, it is determined that the terminal is not connected to the in-vehicle charger because the charging current does not flow from the in-vehicle charger to the terminal side even if pulse charging is performed. Only pulse charging is performed as it is. As a result, the input current input from the in-vehicle battery to the in-vehicle charger becomes a small value, so that the power consumption of the in-vehicle battery is reduced and the in-vehicle battery lasts longer.

また、端末を車載充電器に接続した際、充電電流が車載充電器から端末側へ流れるため、端末が車載充電器に接続されたと判断され、端末に対して通常充電が開始される。これより、端末をできるだけ速く充電したい場合に早急な対応が可能となる。 Further, when the terminal is connected to the in-vehicle charger, a charging current flows from the in-vehicle charger to the terminal side, so that it is determined that the terminal is connected to the in-vehicle charger, and normal charging is started for the terminal. As a result, an immediate response is possible when it is desired to charge the terminal as quickly as possible.

端末に対して所定の通常充電時間にわたり通常充電を行った後、引き続いて端末を車載充電器に継続して装着した場合、所定の充電電流よりも低い電流が車載充電器から端末側へ流れるため、端末が車載充電器に継続して装着されていると判断され、端末に対して通常充電が所定時間間隔毎に間欠的に行われる。また、これら通常充電間においては、パルス充電が継続される。 After the terminal is normally charged for a predetermined normal charging time, when the terminal is continuously attached to the in-vehicle charger, a current lower than the predetermined charging current flows from the in-vehicle charger to the terminal side. It is determined that the terminal is continuously attached to the on-vehicle charger, and normal charging is intermittently performed on the terminal at predetermined time intervals. Further, pulse charging is continued between these normal chargings.

上記のようにして車載充電器に対する端末の着脱を検出することにより、＋−両端子とは別に、端末検出専用の端子を特別に設ける必要はないため、車載充電器および端末の構成を簡素化できる。 By detecting the attachment / detachment of the terminal to / from the in-vehicle charger as described above, it is not necessary to provide a terminal dedicated for terminal detection separately from both the + and-terminals, thus simplifying the configuration of the in-vehicle charger and the terminal it can.

また、本第２発明は、端末に、端末電池と端末の端子との間をオン・オフするスイッチが設けられ、
通常充電中、端末電池が満充電に達したことを端末が検出した場合、スイッチを切換えて端末電池と端末の端子との間を所定の遮断時間だけ遮断することにより、所定の通常充電時間が経過する前に充電電流が遮断され、この充電電流の遮断に基づいて、車載充電器の制御手段は、端末が満充電に達したと判断し、この時点で通常充電を停止するものである。 In the second aspect of the invention, the terminal is provided with a switch for turning on / off between the terminal battery and the terminal of the terminal,
During normal charging, if the terminal detects that the terminal battery has reached full charge, a predetermined normal charging time is established by switching the switch to cut off the terminal battery and the terminal of the terminal for a predetermined interruption time. The charging current is interrupted before the lapse of time, and based on the interruption of the charging current, the control unit of the on-vehicle charger determines that the terminal has reached full charging, and stops normal charging at this point.

これによると、通常充電中に端末電池が満充電に達した場合、車載充電器の制御手段は満充電状態を検知して端末に対する通常充電を停止するため、端末に対する過充電を防止することができる。 According to this, when the terminal battery reaches full charge during normal charging, the control means of the on-vehicle charger detects the full charge state and stops normal charging for the terminal, so that overcharging to the terminal can be prevented. it can.

また、本第３発明は、端末は、位置情報に関する信号を発信する発信手段を有しているものである。
また、本第４発明は、端末電池を内蔵した端末が車体に着脱自在であり、車載充電器により車載電池の電力を使って上記端末の端末電池を充電する方法であって、
車載電池は車載充電器の一次側に接続され、
車載充電器の二次側に、端末を接続するための＋端子と−端子とが設けられ、
車載充電器に、車載充電器の二次側へ出力される充電電流を検出する電流検出手段が設けられ、
所定の出力電圧のパルスを所定の短時間間隔毎に車載充電器の二次側へ出力するパルス充電を行い、
上記電流検出手段が充電電流を検出しない状態から所定の充電電流を検出した場合、端末が車載充電器の上記両端子に接続されたと判断して、上記充電電流を所定の通常充電時間にわたり車載充電器の二次側へ出力する通常充電を行い、
上記電流検出手段が所定の充電電流よりも低い電流を検出している場合、端末が上記通常充電後も車載充電器に継続して装着されていると判断して、上記通常充電を所定時間間隔毎に間欠的に行うとともに、これら通常充電間において上記パルス充電を継続するものである。 According to the third aspect of the present invention, the terminal has transmission means for transmitting a signal related to position information.
The fourth aspect of the invention is a method of charging a terminal battery of the terminal using the power of the in-vehicle battery by an in-vehicle charger, wherein the terminal having the terminal battery is detachable from the vehicle body,
The car battery is connected to the primary side of the car charger,
On the secondary side of the in-vehicle charger, a + terminal and a-terminal for connecting a terminal are provided,
The on-vehicle charger is provided with current detection means for detecting a charging current output to the secondary side of the on-vehicle charger,
Perform pulse charging to output a pulse of a predetermined output voltage to the secondary side of the on-vehicle charger every predetermined short time interval,
When the current detecting means detects a predetermined charging current from a state where no charging current is detected, it is determined that the terminal is connected to the both terminals of the in-vehicle charger, and the in-vehicle charging is performed for a predetermined normal charging time. Normal charge is output to the secondary side of the device,
When the current detection means detects a current lower than a predetermined charging current, it is determined that the terminal is continuously attached to the on-vehicle charger after the normal charging, and the normal charging is performed at predetermined time intervals. The pulse charging is intermittently performed every time and the pulse charging is continued between these normal chargings .

また、端末を車載充電器に接続した際、所定の充電電流が車載充電器から端末側へ流れるため、端末が車載充電器に接続されたと判断され、端末に対して通常充電が開始される。これより、端末をできるだけ速く充電したい場合に早急な対応が可能となる。 Further, when the terminal is connected to the in-vehicle charger, a predetermined charging current flows from the in-vehicle charger to the terminal side, so that it is determined that the terminal is connected to the in-vehicle charger, and normal charging is started for the terminal. As a result, an immediate response is possible when it is desired to charge the terminal as quickly as possible.

また、本第５発明は、通常充電中、端末電池が満充電に達したことを端末が検出した場合、端末電池と端末の端子との間を所定の遮断時間だけ遮断することにより、所定の通常充電時間が経過する前に充電電流が遮断され、この充電電流の遮断に基づいて、車載充電器は、端末が満充電に達したと判断し、この時点で通常充電を停止するものである。 In addition, when the terminal detects that the terminal battery has reached full charge during normal charging, the fifth invention cuts off between the terminal battery and the terminal of the terminal for a predetermined interruption time, The charging current is interrupted before the normal charging time elapses, and based on the interruption of the charging current, the on-vehicle charger determines that the terminal has reached full charging, and stops normal charging at this point. .

これによると、通常充電中に端末電池が満充電に達した場合、車載充電器は満充電状態を検知して端末に対する通常充電を停止するため、端末に対する過充電を防止することができる。 According to this, when the terminal battery reaches full charge during normal charging, the in-vehicle charger detects the full charge state and stops normal charging for the terminal, and thus can prevent overcharging of the terminal.

本発明によると、端末をできるだけ速く充電したい場合に早急な対応が可能となる。したがって、端末を長時間にわたって使用できないような不具合を最小限に抑えることができ、信頼性が向上する。また、車載充電器に対する端末の着脱を検出する際、端末検出専用の端子を特別に設ける必要はないため、車載充電器および端末の構成を簡素化できる。さらに、端末に対する過充電を防止することができる。 According to the present invention, when a terminal is desired to be charged as quickly as possible, an immediate response is possible. Therefore, it is possible to minimize the trouble that the terminal cannot be used for a long time, and the reliability is improved. In addition, when detecting the attachment / detachment of the terminal to / from the in-vehicle charger, it is not necessary to provide a terminal dedicated for terminal detection, so the configuration of the in-vehicle charger and the terminal can be simplified. Furthermore, overcharging of the terminal can be prevented.

以下、本発明における第１の実施の形態を図１〜図４に基づいて説明する。
図４に示すように、１は電動自転車（車両の一例）であり、この電動自転車１には、電動モータ２の補助駆動力をペダル３およびクランク軸４からの人力による駆動力に加える駆動ユニット５と、電動モータ２に電力供給して駆動させるための車載電池６（バッテリ）とが設けられている。 Hereinafter, a first embodiment of the present invention will be described with reference to FIGS.
As shown in FIG. 4, reference numeral 1 denotes an electric bicycle (an example of a vehicle). In the electric bicycle 1, a driving unit that adds auxiliary driving force of the electric motor 2 to driving force by human power from the pedal 3 and the crankshaft 4. 5 and an in-vehicle battery 6 (battery) for supplying electric power to the electric motor 2 to drive it.

また、電動自転車１の前部の荷台７における前輪８の泥除け１２とバスケット１３との間には、盗難対策としての位置検出用の携帯端末９を収容する収容部１０と、上記車載電池６の電力の一部を使って携帯端末９を充電する車載充電器１１とが備えられている。図１に示すように、上記車載充電器１１にはＤＣ−ＤＣコンバータ１４（変圧器の一例）と制御手段１５とが備えられている。上記車載電池６はＤＣ−ＤＣコンバータ１４の一次側に接続されており、車載電池６とＤＣ−ＤＣコンバータ１４との間には、車載電池６の過放電防止と過大入力電圧に対するＤＣ−ＤＣコンバータ１４の保護とのための保護スイッチ１６が設けられている。 Further, between the mudguard 12 of the front wheel 8 and the basket 13 on the front loading platform 7 of the electric bicycle 1, a housing unit 10 that houses a portable terminal 9 for position detection as a countermeasure against theft, and the in-vehicle battery 6 And an in-vehicle charger 11 that charges the mobile terminal 9 using a part of the electric power. As shown in FIG. 1, the on-vehicle charger 11 includes a DC-DC converter 14 (an example of a transformer) and a control unit 15. The in-vehicle battery 6 is connected to the primary side of the DC-DC converter 14. Between the in-vehicle battery 6 and the DC-DC converter 14, the over-discharge prevention of the in-vehicle battery 6 and the DC-DC converter against an excessive input voltage are provided. A protection switch 16 is provided for 14 protection.

上記ＤＣ−ＤＣコンバータ１４の二次側には接続用の＋端子１７と−端子１８とが設けられている。また、車載充電器１１には、車載電池６からＤＣ−ＤＣコンバータ１４の一次側に入力されて変圧された後に二次側へ出力される充電電流Ｉｏ（＝出力電流）を検出する電流検出手段１９（検知手段の一例）が設けられている。尚、上記電流検出手段１９は、電流検出のための抵抗等を備えた回路によって構成されている。また、上記ＤＣ−ＤＣコンバータ１４は、例えば２４〜２８Ｖの直流電圧を入力し、例えば５．４Ｖ（或いは約５〜６Ｖ）の直流電圧に変換して出力電圧Ｖｏで出力するものである。 On the secondary side of the DC-DC converter 14, a connection + terminal 17 and a − terminal 18 are provided. Further, the on-vehicle charger 11 includes a current detection unit that detects a charging current Io (= output current) that is input from the in-vehicle battery 6 to the primary side of the DC-DC converter 14 and transformed and then output to the secondary side. 19 (an example of a detection means) is provided. The current detecting means 19 is constituted by a circuit having a resistor for detecting current. The DC-DC converter 14 receives, for example, a DC voltage of 24 to 28 V, converts it to a DC voltage of, for example, 5.4 V (or about 5 to 6 V), and outputs it at the output voltage Vo.

上記制御手段１５は、電流検出手段１９による検出に基づいてＤＣ−ＤＣコンバータ１４を制御し、パルス充電と通常充電とを切換えるものであり、タイマー機能とパルスを発生させるためのスイッチ機能とを内蔵している。尚、制御手段１５を作動させるための電力は車載電池６から供給されている。 The control means 15 controls the DC-DC converter 14 based on detection by the current detection means 19 and switches between pulse charging and normal charging, and has a timer function and a switch function for generating a pulse. is doing. In addition, the electric power for operating the control means 15 is supplied from the vehicle-mounted battery 6.

上記位置検出用の携帯端末９は、位置情報に関する信号を発信する発信手段（図示せず）を有しており、別途に設けられた管理センターの送受信装置に対して、電動自転車１が盗難にあっていない通常時には、管理センターからの信号を受信可能で消費電力をあまり要しない待機状態に維持され、間欠的に送受信動作を行っている。一方、電動自転車１が盗難に会い、所有者の連絡により管理センターによって、携帯端末９の現在位置を検索する指示が行われた場合には、管理センターからの電波を受けて、測位システム（ＧＰＳ等）により現在位置を検索し、この位置情報の電波を上記発信手段により出力するように構成されている。尚、携帯端末９には、端末電池２２（バッテリ）が内蔵されており、さらに、接続用の＋端子２３と−端子２４とが設けられている。 The mobile terminal 9 for position detection has transmission means (not shown) for transmitting a signal related to position information, and the electric bicycle 1 is stolen from a transmission / reception device of a management center provided separately. During normal times, the signal is received from the management center and is kept in a standby state that does not require much power consumption, and transmission / reception operations are intermittently performed. On the other hand, when the electric bicycle 1 encounters theft and is instructed by the management center to search for the current position of the portable terminal 9 in response to the owner's contact, the positioning system (GPS Etc.), and the radio wave of the position information is output by the transmitting means. The mobile terminal 9 has a built-in terminal battery 22 (battery), and further includes a + terminal 23 and a − terminal 24 for connection.

以下、上記構成における作用を説明する。
制御手段１５は、以下（１）〜（５）のような制御を行う。
（１）携帯端末９を収容部１０に収容していない場合、図２（ａ）に示すように、制御手段１５は、所定の出力電圧Ｖｏ（例えば５．４Ｖ）で且つ所定のパルス幅Ｗ（例えば２秒）のパルスＰを所定の短時間間隔ｔ（例えば１０〜６０秒間隔）毎にＤＣ−ＤＣコンバータ１４の二次側へ出力するパルス充電を行う。この際、携帯端末９が車載充電器１１に接続されていないため、上記パルス充電を行っていても充電電流ＩｏがＤＣ−ＤＣコンバータ１４の二次側から携帯端末９側へ流れず、電流検出手段１９は充電電流Ｉｏを検出しない。これにより、制御手段１５は、携帯端末９が車載充電器１１に接続されていないと判断し、そのままパルス充電のみを行う。これにより、図２（ｃ）に示すように、車載電池６からＤＣ−ＤＣコンバータ１４の一次側へ入力される入力電流Ｉｉｎは僅かな値（例えば６ｍＡ）になるため、車載電池６の消費電力が低減され、車載電池６が長持ちする。 Hereinafter, the operation of the above configuration will be described.
The control means 15 performs the following controls (1) to (5).
(1) When the portable terminal 9 is not accommodated in the accommodating part 10, as shown to Fig.2 (a), the control means 15 is the predetermined | prescribed output voltage Vo (for example, 5.4V) and predetermined | prescribed pulse width W. Pulse charging is performed in which the pulse P (for example, 2 seconds) is output to the secondary side of the DC-DC converter 14 at every predetermined short time interval t (for example, every 10 to 60 seconds). At this time, since the portable terminal 9 is not connected to the on-vehicle charger 11, the charging current Io does not flow from the secondary side of the DC-DC converter 14 to the portable terminal 9 side even when the pulse charging is performed. The means 19 does not detect the charging current Io. Thereby, the control means 15 judges that the portable terminal 9 is not connected to the vehicle-mounted charger 11, and performs only pulse charge as it is. As a result, as shown in FIG. 2C, the input current Iin input from the in-vehicle battery 6 to the primary side of the DC-DC converter 14 becomes a small value (for example, 6 mA). Is reduced and the in-vehicle battery 6 lasts longer.

（２）携帯端末９を収容部１０に収容した場合、図１に示すように、携帯端末９の＋端子２３が車載充電器１１の＋端子１７に接続され、携帯端末９の−端子２４が車載充電器１１の−端子１８に接続される。これにより、図２（ｂ）に示すように、充電電流ＩｏがＤＣ−ＤＣコンバータ１４の二次側から携帯端末９側へ流れ、電流検出手段１９が所定の充電電流Ｉｏ（例えば６００ｍＡ）を検出する。この検出に基づいて、制御手段１５は、携帯端末９が車載充電器１１に接続されたと判断し、上記充電電流Ｉｏを所定の通常充電時間Ｔ１（例えば４０分間）にわたりＤＣ−ＤＣコンバータ１４の二次側へ出力する通常充電を行う。 (2) When the portable terminal 9 is accommodated in the accommodating portion 10, as shown in FIG. 1, the + terminal 23 of the portable terminal 9 is connected to the + terminal 17 of the in-vehicle charger 11, and the − terminal 24 of the portable terminal 9 is Connected to the negative terminal 18 of the in-vehicle charger 11. As a result, as shown in FIG. 2B, the charging current Io flows from the secondary side of the DC-DC converter 14 to the portable terminal 9 side, and the current detection means 19 detects a predetermined charging current Io (for example, 600 mA). To do. Based on this detection, the control means 15 determines that the mobile terminal 9 is connected to the in-vehicle charger 11, and uses the charging current Io as the second DC-DC converter 14 for a predetermined normal charging time T1 (for example, 40 minutes). Normal charge is output to the next side.

尚、このような通常充電の際の入力電流Ｉｉｎは、上記（１）の携帯端末９を接続していない場合に比べて、大きな値（例えば１３０ｍＡ）になる。また、通常充電の際の出力電圧Ｖｏは、上記（１）の携帯端末９を接続していない場合と同じ値である。この通常充電によって、携帯端末９の端末電池２２はほぼ満充電になる。 Note that the input current Iin at the time of such normal charging is a large value (for example, 130 mA) compared to the case where the portable terminal 9 of (1) is not connected. Moreover, the output voltage Vo at the time of normal charge is the same value as the case where the portable terminal 9 of said (1) is not connected. By this normal charging, the terminal battery 22 of the mobile terminal 9 is almost fully charged.

（３）上記（２）で示したように携帯端末９を収容部１０に収容して通常充電し、その後、携帯端末９を車載充電器１１に接続したままの状態を引き続き継続した場合、図２（ａ）に示すように、制御手段１５は、所定の通常充電時間Ｔ１にわたり通常充電を行った後、上記（１）の場合と同様なパルス充電に切換える。この際、携帯端末９が継続して車載充電器１１に接続されているため、パルスＰの発振に応じて、所定の充電電流Ｉｏ（例えば６００ｍＡ）よりも低い電流ＩｏａがＤＣ−ＤＣコンバータ１４の二次側から携帯端末９側へ流れ、電流検出手段１９が上記低い電流Ｉｏａを検出する。この検出に基づいて、制御手段１５は、携帯端末９が上記（２）で示した通常充電後も車載充電器１１に継続して接続されていると判断し、通常充電を所定時間Ｔ２（例えば３６時間）の間隔毎に間欠的に行うとともに、これら通常充電間においてパルス充電を継続する。 (3) When the portable terminal 9 is accommodated in the accommodating portion 10 and normally charged as shown in (2) above, and then the state where the portable terminal 9 remains connected to the in-vehicle charger 11 is continued, As shown in FIG. 2 (a), the control means 15 performs normal charging for a predetermined normal charging time T1, and then switches to pulse charging similar to the case of (1) above. At this time, since the portable terminal 9 is continuously connected to the on-vehicle charger 11, a current Ioa lower than a predetermined charging current Io (for example, 600 mA) is generated by the DC-DC converter 14 in accordance with the oscillation of the pulse P. The current flows from the secondary side to the portable terminal 9 side, and the current detection means 19 detects the low current Ioa. Based on this detection, the control means 15 determines that the mobile terminal 9 is continuously connected to the in-vehicle charger 11 after the normal charging shown in (2) above, and performs normal charging for a predetermined time T2 (for example, (36 hours) at intervals, and pulse charging is continued between these normal chargings.

（４）その後、上記携帯端末９を収容部１０から取外した場合、携帯端末９と車載充電器１１との接続が遮断され、上記（１）の場合と同様に、図３（ｂ）に示すように、パルス充電を行っていても充電電流ＩｏがＤＣ−ＤＣコンバータ１４の二次側から携帯端末９側へ流れず、電流検出手段１９は充電電流Ｉｏを検出しない。これにより、制御手段１５は、携帯端末９が車載充電器１１に接続されていないと判断し、そのままパルス充電のみを行う。 (4) After that, when the portable terminal 9 is removed from the accommodating portion 10, the connection between the portable terminal 9 and the in-vehicle charger 11 is cut off, and as shown in FIG. Thus, even if pulse charging is performed, the charging current Io does not flow from the secondary side of the DC-DC converter 14 to the portable terminal 9 side, and the current detection means 19 does not detect the charging current Io. Thereby, the control means 15 judges that the portable terminal 9 is not connected to the vehicle-mounted charger 11, and performs only pulse charge as it is.

（５）その後、再度、携帯端末９を収容部１０に収容した場合、上記（２）の場合と同様に、図３（ｂ）に示すように、電流検出手段１９が所定の充電電流Ｉｏ（例えば６００ｍＡ）を検出し、この検出に基づいて、制御手段１５は、携帯端末９が車載充電器１１に接続されたと判断し、上記充電電流Ｉｏを所定の通常充電時間Ｔ１にわたり出力する通常充電を行う。これにより、携帯端末９を収容部１０に収容した（すなわち携帯端末９が車載充電器１１に接続された）際、上記所定時間Ｔ２に達していない場合でも携帯端末９の接続が検知された時点で直ちに、携帯端末９に対して通常充電が開始される。これにより、携帯端末９をできるだけ速く充電したい場合に早急な対応が可能となり、携帯端末９を長時間にわたって使用できないような不具合を最小限に抑えることができ、信頼性が向上する。 (5) After that, when the portable terminal 9 is accommodated in the accommodating portion 10 again, as in the case of (2) above, the current detection means 19 has a predetermined charging current Io ( For example, 600 mA) is detected, and based on this detection, the control means 15 determines that the mobile terminal 9 is connected to the in-vehicle charger 11, and performs normal charging for outputting the charging current Io over a predetermined normal charging time T1. Do. Thereby, when the portable terminal 9 is accommodated in the accommodating portion 10 (that is, when the portable terminal 9 is connected to the in-vehicle charger 11), even when the predetermined time T2 has not been reached, the connection of the portable terminal 9 is detected. Immediately, normal charging of the mobile terminal 9 is started. Thereby, when it is desired to charge the mobile terminal 9 as quickly as possible, it is possible to quickly cope with it, and it is possible to minimize the trouble that the mobile terminal 9 cannot be used for a long time, thereby improving the reliability.

また、上記（１）〜（５）に示したように、電流検出手段１９の検出に基づいて、車載充電器１１に対する携帯端末９の着脱を検出することができるため、接続用の＋−両端子１７，１８，２３，２４とは別に、携帯端末９を検出するための専用の端子を特別に設ける必要はない。これにより、携帯端末９および車載充電器１１の構成を簡素化できる。 Further, as shown in the above (1) to (5), since the attachment / detachment of the portable terminal 9 with respect to the in-vehicle charger 11 can be detected based on the detection of the current detection means 19, both ends of the connection + − Apart from the children 17, 18, 23, and 24, it is not necessary to provide a dedicated terminal for detecting the mobile terminal 9. Thereby, the structure of the portable terminal 9 and the vehicle-mounted charger 11 can be simplified.

次に、第２の実施の形態を図５，図６に基づいて説明する。
携帯端末９には、端末電池２２が満充電になったことを検知する満充電検知手段（図せず）と、上記満充電検知に基づいて端末電池２２と＋端子２３との間をオン・オフするスイッチ２６とが設けられている。 Next, a second embodiment will be described with reference to FIGS.
The portable terminal 9 includes a full charge detection means (not shown) for detecting that the terminal battery 22 is fully charged, and the terminal battery 22 and the + terminal 23 are turned on / off based on the full charge detection. A switch 26 that is turned off is provided.

これによると、図６（ｄ）に示すように、通常充電中に、端末電池２２が満充電になった場合、満充電検知手段が上記満充電状態を検出し、この検出に基づいて、スイッチ２６が所定の遮断時間Ｔ３だけオフに切換えられ、上記遮断時間Ｔ３だけ端末電池２２と＋端子２３との間が遮断される。これにより、図６（ｂ）に示すように、所定の通常充電時間Ｔ１（例えば４０分間）が経過する前に、充電電流Ｉｏが遮断されて０になり、電流検出手段１９が上記充電電流Ｉｏの遮断（＝０）を検出する。 According to this, as shown in FIG. 6D, when the terminal battery 22 is fully charged during normal charging, the full charge detection means detects the full charge state, and based on this detection, the switch 26 is switched off for a predetermined cut-off time T3, and the terminal battery 22 and the + terminal 23 are cut off for the cut-off time T3. As a result, as shown in FIG. 6B, before a predetermined normal charging time T1 (for example, 40 minutes) elapses, the charging current Io is cut off and becomes 0, and the current detecting means 19 is connected to the charging current Io. Detection of blockage (= 0).

上記検出に基づいて制御手段１５は、携帯端末９が満充電に達したと判断し、この時点で通常充電を停止し、パルス充電に切換える。これにより、満充電に達した携帯端末９の端末電池２２に対する過充電を防止することができる。 Based on the detection, the control means 15 determines that the mobile terminal 9 has reached full charge, and at this point, stops normal charging and switches to pulse charging. Thereby, the overcharge with respect to the terminal battery 22 of the portable terminal 9 which reached full charge can be prevented.

上記各実施の形態では、車両の一例として電動自転車１を挙げたが、これに限定されるものではなく、例えばオートバイや自動車等であってもよい。また、端末の一例として、盗難対策としての位置検出用の携帯端末９を挙げたが、これに限定されるものではなく、例えば携帯電話等であってもよい。 In each said embodiment, although the electric bicycle 1 was mentioned as an example of a vehicle, it is not limited to this, For example, a motorcycle, a motor vehicle, etc. may be sufficient. Further, as an example of the terminal, the portable terminal 9 for position detection as a countermeasure against theft is described, but the terminal is not limited to this, and may be, for example, a mobile phone.

上記各実施の形態では、図４に示すように、携帯端末９の収容部１０と車載充電器１１とを電動自転車１の荷台７に備えているが、荷台７以外の他の部分、例えばサドルの下側等に備えてもよい。 In each of the above embodiments, as shown in FIG. 4, the accommodating portion 10 of the mobile terminal 9 and the in-vehicle charger 11 are provided in the loading platform 7 of the electric bicycle 1. You may prepare for the lower side etc.

上記各実施の形態では、図２，図３，図６に示したグラフ中の各電圧，電流，時間の各数値は一例であって、これらの数値に限定されるものではない。
上記各実施の形態では、パルス充電について説明をしたが、パルス充電ではなく、常時出力による定電圧充電で実施することも可能である。尚、上記パルス充電の場合、ＤＣ−ＤＣコンバータ１４として、大電流のときに効率が良いスイッチングレギュレータ方式を用いるのが望ましく、その場合は高効率で充電できるため、入力電力が少なくて済むといったメリットがある。一方、上記常時出力による定電圧充電の場合、ＤＣ−ＤＣコンバータ１４として、小電流向きであるシリーズレギュレータ方式（三端子レギュレータ等を用いた電圧降下方式）を用いるのが望ましい。 In each of the above embodiments, each voltage, current, and time value in the graphs shown in FIGS. 2, 3, and 6 is an example, and is not limited to these values.
In each of the embodiments described above, pulse charging has been described. However, it is also possible to carry out constant voltage charging with constant output instead of pulse charging. In the case of the above pulse charging, it is desirable to use a switching regulator system that is efficient at a large current as the DC-DC converter 14, and in that case, charging can be performed with high efficiency, so that the advantage of requiring less input power. There is. On the other hand, in the case of constant voltage charging by the above-described constant output, it is desirable to use a series regulator system (voltage drop system using a three-terminal regulator) that is suitable for a small current as the DC-DC converter 14.

バッテリに蓄えられた電力の一部を使って端末を充電する際の充電システムにも適用できる。 The present invention can also be applied to a charging system for charging a terminal using a part of electric power stored in a battery.

本発明の第１の実施の形態における電動自転車の車載充電器と、この車載充電器に接続された携帯端末との図である。It is a figure of the vehicle-mounted charger of the electric bicycle in the 1st Embodiment of this invention, and the portable terminal connected to this vehicle-mounted charger. 同、電動自転車の車載充電器を用いた充電動作を示すグラフであり、（ａ）は出力電圧のグラフであり、（ｂ）は充電電流のグラフであり、（ｃ）は入力電流のグラフである。It is a graph which shows the charging operation using the vehicle-mounted charger of an electric bicycle, (a) is a graph of output voltage, (b) is a graph of charging current, (c) is a graph of input current. is there. 同、電動自転車の車載充電器を用いた充電動作を示すグラフであり、（ａ）は出力電圧のグラフであり、（ｂ）は充電電流のグラフであり、（ｃ）は入力電流のグラフである。It is a graph which shows the charging operation using the vehicle-mounted charger of an electric bicycle, (a) is a graph of output voltage, (b) is a graph of charging current, (c) is a graph of input current. is there. 同、電動自転車の図である。It is a figure of an electric bicycle. 本発明の第２の実施の形態における電動自転車の車載充電器と、この車載充電器に接続された携帯端末との図である。It is a figure of the vehicle-mounted charger of the electric bicycle in the 2nd Embodiment of this invention, and the portable terminal connected to this vehicle-mounted charger. 同、電動自転車の車載充電器を用いた充電動作を示すグラフであり、（ａ）は出力電圧のグラフであり、（ｂ）は充電電流のグラフであり、（ｃ）は入力電流のグラフであり、（ｄ）はスイッチのオン・オフを示すグラフである。It is a graph which shows the charging operation using the vehicle-mounted charger of an electric bicycle, (a) is a graph of output voltage, (b) is a graph of charging current, (c) is a graph of input current. And (d) is a graph showing ON / OFF of the switch. 従来の車載充電器と携帯端末との構成を示す図である。It is a figure which shows the structure of the conventional vehicle-mounted charger and a portable terminal.

Explanation of symbols

１電動自転車（車両）
６車載電池
９携帯端末
１１車載充電器
１４ＤＣ−ＤＣコンバータ（変圧器）
１５制御手段
１７＋端子
１８ −端子
１９電流検出手段（検知手段）
２２端末電池
２６スイッチ
Ｉｏ充電電流
Ｖｏ出力電圧
Ｐパルス
ｔ短時間間隔
Ｔ１通常充電時間
Ｔ２所定時間
Ｔ３遮断時間 1 Electric bicycle (vehicle)
6 In-vehicle battery 9 Mobile terminal 11 In-vehicle charger 14 DC-DC converter (transformer)
15 Control means 17 + terminal 18-terminal 19 Current detection means (detection means)
22 terminal battery 26 switch Io charging current Vo output voltage P pulse t short time interval T1 normal charging time T2 predetermined time T3 cutoff time

Claims

An in-vehicle battery,
A terminal that is detachable from the vehicle body and has a built-in terminal battery;
An in-vehicle charger for charging the terminal battery of the terminal mounted on the vehicle body using the electric power of the in-vehicle battery ,
And a control means for controlling the on-vehicle charger,
The car battery is connected to the primary side of the car charger,
On the secondary side of the in-vehicle charger, a + terminal and a-terminal for connecting a terminal are provided,
The on-vehicle charger is provided with current detection means for detecting a charging current output to the secondary side of the on-vehicle charger,
The control means performs pulse charging for outputting a pulse of a predetermined output voltage to the secondary side of the in-vehicle charger at predetermined short-time intervals, and the predetermined current is detected from the state where the current detection means does not detect the charging current. Is detected, the terminal is connected to both terminals of the in-vehicle charger, and the charging current is output to the secondary side of the in-vehicle charger for a predetermined normal charging time, and the current detection is performed. When the means detects a current lower than a predetermined charging current, it is determined that the terminal is continuously attached to the on-vehicle charger after the normal charging, and the normal charging is intermittently performed at predetermined time intervals. A vehicle having a charging function characterized in that the pulse charging is continued during normal charging .

The terminal has a switch that turns on and off between the terminal battery and the terminal of the terminal,
During normal charging, if the terminal detects that the terminal battery has reached full charge, a predetermined normal charging time is established by switching the switch to cut off the terminal battery and the terminal of the terminal for a predetermined interruption time. The charging current is cut off before elapses, and the control means of the on-vehicle charger determines that the terminal has reached full charge based on the interruption of the charging current, and stops normal charging at this point. A vehicle having a charging function according to claim 1 .

The vehicle having a charging function according to claim 1 or 2, wherein the terminal has a transmission means for transmitting a signal related to position information .

A terminal with a built-in terminal battery is detachable from the vehicle body, and the terminal battery of the terminal is charged using the power of the on-vehicle battery by the on-vehicle charger,
The car battery is connected to the primary side of the car charger,
On the secondary side of the in-vehicle charger, a + terminal and a-terminal for connecting a terminal are provided,
The on-vehicle charger is provided with current detection means for detecting a charging current output to the secondary side of the on-vehicle charger,
Perform pulse charging to output a pulse of a predetermined output voltage to the secondary side of the on-vehicle charger every predetermined short time interval,
When the current detecting means detects a predetermined charging current from a state where no charging current is detected, it is determined that the terminal is connected to the both terminals of the in-vehicle charger, and the in-vehicle charging is performed for a predetermined normal charging time. Normal charge is output to the secondary side of the device,
When the current detection means detects a current lower than a predetermined charging current, it is determined that the terminal is continuously attached to the on-vehicle charger after the normal charging, and the normal charging is performed at predetermined time intervals. A terminal charging method using a vehicle having a charging function, characterized in that the pulse charging is continued between the normal chargings intermittently every time.

During normal charging, if the terminal detects that the terminal battery has reached full charge, the terminal battery is disconnected from the terminal of the terminal for a predetermined interruption time before the predetermined normal charging time elapses. 5. The charging according to claim 4, wherein the charging current is interrupted, and the on-vehicle charger determines that the terminal has reached full charging based on the interruption of the charging current, and stops normal charging at this time. A terminal charging method using a vehicle having a function.