WO1996019859A1 - Dispositif de prevention des surintensites d'alimentation - Google Patents
Dispositif de prevention des surintensites d'alimentation Download PDFInfo
- Publication number
- WO1996019859A1 WO1996019859A1 PCT/JP1995/002593 JP9502593W WO9619859A1 WO 1996019859 A1 WO1996019859 A1 WO 1996019859A1 JP 9502593 W JP9502593 W JP 9502593W WO 9619859 A1 WO9619859 A1 WO 9619859A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- duty ratio
- current
- limit value
- value
- pwm wave
- Prior art date
Links
Classifications
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
- H02J7/14—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries for charging batteries from dynamo-electric generators driven at varying speed, e.g. on vehicle
- H02J7/16—Regulation of the charging current or voltage by variation of field
- H02J7/24—Regulation of the charging current or voltage by variation of field using discharge tubes or semiconductor devices
- H02J7/2434—Regulation of the charging current or voltage by variation of field using discharge tubes or semiconductor devices with pulse modulation
-
- 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
- Y02T10/80—Technologies aiming to reduce greenhouse gasses emissions common to all road transportation technologies
- Y02T10/92—Energy efficient charging or discharging systems for batteries, ultracapacitors, supercapacitors or double-layer capacitors specially adapted for vehicles
Definitions
- the present invention relates to an overcurrent take-out prevention device that can prevent an overcurrent from being taken out from a rechargeable storage battery such as a sealed lead-acid battery or a sealed Ni-Cad battery. About.
- rechargeable storage batteries such as sealed lead batteries and sealed Nicad batteries are widely used as power sources for various devices.
- a large current overcurrent
- heat generation or deterioration occurs, and the cycle life is shortened. Therefore, the maximum current that can be extracted according to the capacity of each battery is c conventionally such storage battery, for example transport 4I, more hours, rather than an electric vehicle, when used as a bulging j force source of Den ⁇ vehicle such as the auxiliary motorized manpower vehicle power is required constant Therefore, it was necessary to prepare a battery with a battery capacity that far exceeded the expected maximum required power.
- the present invention has been made in view of the above-mentioned circumstances, and does not require the use of a large-capacity storage battery, and can prevent the cycle life of the storage battery from being shortened by taking out overcurrent.
- the purpose is to provide a current extraction prevention bag.
- a current corresponding to the duty ratio of the supplied PWM wave is taken out from the storage battery, and the current is supplied to the motor.
- the flow detection means for detecting the flow and outputting the detection result, and the motor is strictly excited so that the detection result of the flow detection means coincides with the II value of the flow to be supplied to the motor.
- Duty ratio calculating means for calculating a duty ratio corresponding to the following, and a PWM generating means for generating a PWM wave having a duty ratio calculated by the duty ratio calculating means, and outputting the PWM wave to the energizing means.
- the limit calculating means for outputting as a mit head is compared with the duty ratio calculated by the front-end duty ratio and the front limit, and the front-end duty ratio is determined by the limit. If it is smaller than the cutoff, the duty ratio is And outputs to the stage, when the duty ratio is larger than the re mission-Bok value, characterized by comprising a selection means for outputting the re mitt up value to the P WM-wave generating means.
- a flow corresponding to the duty ratio of the supplied PWM wave is taken out of the storage battery, and a communication means for supplying the current to the motor, and the flow is supplied to the motor.
- '' Current detection means for detecting the current and outputting the detection result; The corrective operation is performed so that the result matches the target value of the current to be supplied to the motor, the duty ratio calculating means for calculating a duty ratio corresponding to the flow command value, and the duty ratio calculating means calculates the duty ratio.
- the duty ratio calculating means calculates the duty ratio in the first cycle 45, and the limit calculating means limits the duty cycle in the second cycle. A value is calculated, and the second cycle is set longer than the first cycle.
- the limit calculation means divides the current limit value that can be taken out from the storage battery by the target value of the current to be supplied to the motor or the detection value of the current detection means, and The result is output as a duty ratio limit value
- the selection means compares the duty ratio output by the output stage with the limit 1, the limit I calculated by the calculation means, and the value. If the duty ratio is smaller than the limit value, the corresponding duty ratio is output to the PW ⁇ wave generator, and if the duty ratio is larger than the limit value, the corresponding limit ⁇ is generated as a PWM wave. Output to the means. As a result, the duty ratio of the generated PWM wave does not exceed the limit or the like, so that it is possible to prevent an overcurrent exceeding the limit value of the battery current or being taken out of the battery.
- FIG. 3 is a flowchart for explaining the operation of the embodiment.
- FIG. 4 is a functional block diagram showing the correspondence between the embodiments and the claims.
- FIG. 5 is a functional block diagram showing the correspondence between another example and the claims. Best mode for implementing
- FIG. 1 is a block diagram showing the overall configuration of a flow control device to which this screen is applied. You. This current control device is applied to an auxiliary powered bicycle (not shown). For bicycles with auxiliary power, a current approximately proportional to the pedaling force is supplied to the motor from a sealed battery such as a sealed lead-acid battery or a sealed double-power battery. The bicycle is driven by the combined driving force of power and human power.
- a sealed battery such as a sealed lead-acid battery or a sealed double-power battery.
- E is a rechargeable storage battery, and is configured as a secondary battery in which a plurality of battery cells such as a sealed lead battery and a sealed NiCad battery are connected in series.
- Reference numeral 1 denotes a flow supply unit, which corresponds to the duty ratio (corresponding to the current command value) of the P WM (Pulse li dl h M ( ) cki la Uun) supplied from the controller 2 (described later). The current is taken out from the Ui pond E and supplied to the motor M.
- Reference numeral 3 denotes a current sensor which detects the actual current supplied to the motor M and detects the current according to the magnitude of the current. Output to controller 2.
- the controller 2 includes a CPU (Central Processing Unit), a memory, an AD (analog-to-digital) converter, a D (digital-to-analog) converter and the like (not shown).
- the controller 2 performs a correction operation in accordance with a difference between the target current value and the flow detection value fed back from the current sensor 3 (that is, performs the feedback control, and outputs a duty cycle corresponding to the. ', L command value.
- the above values are based on the detection results of the pedal depression force by a torque meter (not shown) and the vehicle speed detection results by a $ speed sensor (not shown).
- the controller 2 calculates the value based on the above equation.
- the controller 2 performs the following overflow discharge prevention control in addition to the feed pack control described above.
- FIGS. Fig. 2 is a flow chart showing a target value calculation routine executed by the controller 2 at intervals of 5 ms.
- 13 ⁇ 413 is a flow control routine executed by the controller 2 at a time interval of 64 ⁇ s. It is a flowchart shown.
- the controller 2 performs the current pack control and the overcurrent removal prevention control by repeatedly executing these routines at intervals of fI3 (I) at each time.
- the controller 2 converts the outputs of the torque meter and the vehicle speed sensor from analog to digital and captures them into the CPU (steps S a 1 and S a 2, and supplies these to the motor M based on the detected values.
- the target value of the current to be calculated is calculated and stored in the memory as (il target current value (Step Sa3.)) O
- the controller 2 calculates a limit value that can be instructed iT as a duty ratio of the PWM wave supplied to the current supply unit 1 (step Sa 4, that is, the PWM wave). Since the current drawn from the storage battery E in one cycle (hereinafter referred to as the battery current) is given by the product of the target current value and the duty ratio of the PWM wave, it is stored in the memory in advance corresponding to the capacity of the storage battery E. Dividing the limit value of the calculated pond flow by the target convection value yields the limit, ⁇ (, and the step of storing the obtained limit value in memory. ).
- I standard value output routine shown in FIG. 2 is repeated at 5 ms 13 ⁇ 4, and the limit value of the master value and the limit value of the duty ratio are updated.
- the controller 2 AD-converts the detection result of the convection sensor 3 and takes it into the CPU (step S b 1), and stores this current detection value and the memory in step S a 3 described above.
- ⁇ Perform corrective excitation in accordance with the target ill flow value (that is, perform feedback control '), and calculate the duty ratio of the PWM wave corresponding to the flow target value (Step S b 2) 0
- the controller 2 compares the value of the duty ratio calculated in step Sb2 with the limit value recorded in the memory in step Sa5 (step Sb3).
- step Sb2 if the duty ratio calculated in step Sb2 is smaller than the limit value, a PWM wave is generated based on the calculated duty ratio, and this is output to the feeding unit 1. b 4 0
- step Sb2 if the duty ratio calculated in step Sb2 is larger than the limit value, a PWM wave having the duty value as the duty value is generated and output to the current supply unit 1. S b 5.).
- the current control routine shown in FIG. 3 is repeated every 6 Js, so that the supply current to the Moke M is controlled by the feed pack, and the current extracted from the storage battery E does not become an overcurrent.
- the limit is controlled.
- the target value is executed at a relatively long time interval (5 ms).
- the limit value exceeds the I "! Target i flow value.
- the current control routine (Fig. 3) executed by feH, 1 irjl l (64 ⁇ s) indicates that only the ratio between the limit value and the duty ratio set to 13 ⁇ 4:-
- the load on the CPU is reduced and the processing efficiency can be improved. it can.
- the limit depression is calculated based on the reference current value, there is no need to separately provide a current R for detecting the battery current, and the configuration of the device i can be simplified.
- the limit calculating means 21 divides the current limit value that can be taken out from the storage battery ⁇ by the target current value for step Sa4, and calculates ⁇ ⁇ as the duty ratio. Output as mit value.
- the selection means 22 corresponds to the steps Sb3 to Sb5, and the duty ratio calculation means 23 (step Sb2 is the duty ratio calculated based on the output result of the flow detection means 24) And the limit calculation means 21; ': Compare the output limit value and, if the duty ratio is smaller than the limit value, use the PWM signal generation means 25 (control Controller 2), and when the duty ratio is larger than the limit value, outputs the limit value to the PWM wave generation means 25. Thereby, the PWM wave generation means 25 The output duty ratio does not exceed the limit value, and the energizing means 26 (current supply unit 1) performs motor mode M within H of the l £ ⁇ current.
- the limit value may be calculated by dividing the limit value of the pond by the flow value. This means that the limit calculation means 21 shown in FIG. 4 receives the input and output of the current detection means 24, and the functional block diagram is as shown in FIG.
- the present invention is applied to a bicycle with an auxiliary power.
- the present invention is not limited to this, and can be applied to other devices using a storage battery as a power source.
- the duty ratio of the generated PWM wave does not exceed the limit value, so that the power is supplied beyond the limit value of the battery current. Can be prevented. As a result, it is possible to prevent the cycle life of the storage battery from being shortened by extracting the overcurrent, and it is not necessary to use a large capacity dyke to avoid overcurrent.
Description
Claims
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP95940460A EP0749189A4 (en) | 1994-12-19 | 1995-12-18 | OVERCURRENT PROTECTION FOR POWER SUPPLY |
US08/702,681 US6465983B1 (en) | 1994-12-19 | 1995-12-18 | Overcurrent protection device |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP6315099A JPH08172722A (ja) | 1994-12-19 | 1994-12-19 | 過電流取出防止装置 |
JP6/315099 | 1994-12-19 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO1996019859A1 true WO1996019859A1 (fr) | 1996-06-27 |
Family
ID=18061409
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/JP1995/002593 WO1996019859A1 (fr) | 1994-12-19 | 1995-12-18 | Dispositif de prevention des surintensites d'alimentation |
Country Status (6)
Country | Link |
---|---|
US (1) | US6465983B1 (ja) |
EP (1) | EP0749189A4 (ja) |
JP (1) | JPH08172722A (ja) |
CN (1) | CN1043280C (ja) |
TW (1) | TW366603B (ja) |
WO (1) | WO1996019859A1 (ja) |
Families Citing this family (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP3380766B2 (ja) * | 1999-03-18 | 2003-02-24 | 富士通株式会社 | 保護方法及び制御回路並びに電池ユニット |
DE19941488A1 (de) * | 1999-09-01 | 2001-03-15 | Bosch Gmbh Robert | Schutzschaltung für eine Reihenschaltung aus Leistungshalbleiter-Endschalter und Motor |
US8796967B2 (en) * | 2010-06-08 | 2014-08-05 | Panasonic Corporation | Motor drive device, brushless motor, and motor drive method |
US11290042B2 (en) | 2016-05-25 | 2022-03-29 | Steering Solutions Ip Holding Corporation | Supply current limiting of DC machines |
TWI628109B (zh) * | 2017-02-10 | 2018-07-01 | 國立成功大學 | 電助自行車之後車架扭矩感測裝置 |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH0583932A (ja) * | 1991-09-17 | 1993-04-02 | Toshiba Corp | 過電流保護回路 |
JPH06178579A (ja) * | 1992-12-03 | 1994-06-24 | Toshiba Corp | 冷凍サイクル制御装置 |
JPH07260907A (ja) * | 1994-03-23 | 1995-10-13 | Nippondenso Co Ltd | 車両用バッテリの容量検出装置 |
Family Cites Families (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4456097A (en) * | 1982-10-12 | 1984-06-26 | Otis Elevator Company | Elevator battery charging control |
DE3611484C2 (de) | 1986-04-05 | 1994-06-09 | Ceag Licht & Strom | Schaltungsanordnung für eine tragbare Leuchte |
JPH03164093A (ja) * | 1989-11-17 | 1991-07-16 | Matsushita Electric Ind Co Ltd | 電流検出方法 |
DE4128962A1 (de) * | 1991-08-29 | 1993-03-04 | Leonhard Kuffer | Elektronische hilfsschaltungen zur verarbeitung von elektrischer energie, die von wind-, solar-, und anderen generatoren erzeugt wird |
US5465011A (en) | 1992-12-14 | 1995-11-07 | Square D Company | Uninterruptible power supply with improved output regulation |
TW308754B (ja) * | 1994-12-28 | 1997-06-21 | Yamaha Motor Co Ltd |
-
1994
- 1994-12-19 JP JP6315099A patent/JPH08172722A/ja active Pending
-
1995
- 1995-12-13 TW TW084113284A patent/TW366603B/zh active
- 1995-12-18 WO PCT/JP1995/002593 patent/WO1996019859A1/ja not_active Application Discontinuation
- 1995-12-18 EP EP95940460A patent/EP0749189A4/en not_active Withdrawn
- 1995-12-18 CN CN95191687A patent/CN1043280C/zh not_active Expired - Fee Related
- 1995-12-18 US US08/702,681 patent/US6465983B1/en not_active Expired - Fee Related
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH0583932A (ja) * | 1991-09-17 | 1993-04-02 | Toshiba Corp | 過電流保護回路 |
JPH06178579A (ja) * | 1992-12-03 | 1994-06-24 | Toshiba Corp | 冷凍サイクル制御装置 |
JPH07260907A (ja) * | 1994-03-23 | 1995-10-13 | Nippondenso Co Ltd | 車両用バッテリの容量検出装置 |
Non-Patent Citations (1)
Title |
---|
See also references of EP0749189A4 * |
Also Published As
Publication number | Publication date |
---|---|
US6465983B1 (en) | 2002-10-15 |
JPH08172722A (ja) | 1996-07-02 |
TW366603B (en) | 1999-08-11 |
EP0749189A4 (en) | 1997-05-07 |
EP0749189A1 (en) | 1996-12-18 |
CN1043280C (zh) | 1999-05-05 |
CN1141098A (zh) | 1997-01-22 |
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