WO2015178199A1 - 電子制御装置 - Google Patents
電子制御装置 Download PDFInfo
- Publication number
- WO2015178199A1 WO2015178199A1 PCT/JP2015/063157 JP2015063157W WO2015178199A1 WO 2015178199 A1 WO2015178199 A1 WO 2015178199A1 JP 2015063157 W JP2015063157 W JP 2015063157W WO 2015178199 A1 WO2015178199 A1 WO 2015178199A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- current
- boost
- boosting
- control device
- electronic control
- Prior art date
Links
- 230000007423 decrease Effects 0.000 claims description 8
- 239000003990 capacitor Substances 0.000 claims description 7
- 230000005674 electromagnetic induction Effects 0.000 abstract description 9
- 230000006698 induction Effects 0.000 abstract 1
- 239000000446 fuel Substances 0.000 description 14
- 238000002347 injection Methods 0.000 description 13
- 239000007924 injection Substances 0.000 description 13
- 238000010586 diagram Methods 0.000 description 4
- 230000007257 malfunction Effects 0.000 description 3
- 238000012544 monitoring process Methods 0.000 description 2
- 230000002093 peripheral effect Effects 0.000 description 2
- 230000014759 maintenance of location Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000002040 relaxant effect Effects 0.000 description 1
Images
Classifications
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
- H02M3/00—Conversion of DC power input into DC power output
- H02M3/02—Conversion of DC power input into DC power output without intermediate conversion into AC
- H02M3/04—Conversion of DC power input into DC power output without intermediate conversion into AC by static converters
- H02M3/06—Conversion of DC power input into DC power output without intermediate conversion into AC by static converters using resistors or capacitors, e.g. potential divider
- H02M3/07—Conversion of DC power input into DC power output without intermediate conversion into AC by static converters using resistors or capacitors, e.g. potential divider using capacitors charged and discharged alternately by semiconductor devices with control electrode, e.g. charge pumps
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
- H02M3/00—Conversion of DC power input into DC power output
- H02M3/02—Conversion of DC power input into DC power output without intermediate conversion into AC
- H02M3/04—Conversion of DC power input into DC power output without intermediate conversion into AC by static converters
- H02M3/10—Conversion of DC power input into DC power output without intermediate conversion into AC by static converters using discharge tubes with control electrode or semiconductor devices with control electrode
- H02M3/145—Conversion of DC power input into DC power output without intermediate conversion into AC by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a triode or transistor type requiring continuous application of a control signal
- H02M3/155—Conversion of DC power input into DC power output without intermediate conversion into AC by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a triode or transistor type requiring continuous application of a control signal using semiconductor devices only
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03K—PULSE TECHNIQUE
- H03K5/00—Manipulating of pulses not covered by one of the other main groups of this subclass
- H03K5/19—Monitoring patterns of pulse trains
Definitions
- the present invention relates to a booster circuit in an electronic control device.
- JP 2013-253530 A there is JP 2013-253530 A.
- the current is repeatedly turned on and off between the upper limit value and the lower limit value so that the average current becomes constant by switching control. Further, boosting from the start of boosting to a current value for maintaining a constant average current is performed at a time, not stepwise. As described above, the higher the average current value to be kept constant, the larger the current fluctuation at the start of voltage boosting, and accordingly, voltage fluctuation due to electromagnetic induction is generated in the surrounding signal lines. Further, even when the boosting is stopped, since the amount of current drop increases as the average current value to be kept constant increases, voltage fluctuations due to electromagnetic induction are generated in the surrounding signal lines as described above. Since the voltage fluctuation is not intended for the signal line, there is a possibility of causing a circuit malfunction.
- the boosted voltage is controlled by current, and when the target voltage increases, the target current value also increases proportionally. Further, a desired voltage value is obtained by continuously turning on the boosting switch element until the current reaches the target current value. For this reason, when the target voltage value is set high, that is, when the target current value is set high, the fluctuation of the current flowing through the booster circuit also increases, so voltage fluctuation due to electromagnetic induction is applied to the signal line arranged around the booster circuit. generate. Since the voltage fluctuation in the previous period is an unintended voltage fluctuation in the signal line, there is a possibility of causing a circuit malfunction.
- an object of the present invention is to reduce voltage fluctuations due to electromagnetic induction caused by sudden current fluctuations that occur at the start and stop of boosting and to reduce the influence on peripheral circuits.
- the object of the present invention can be achieved, for example, by controlling in steps the current value at the start of boosting and the current drop at the stop of boosting.
- the present invention it is possible to reduce voltage fluctuations due to electromagnetic induction caused by sudden current fluctuations that occur when boosting is started and when boosting is stopped, and to reduce the influence on peripheral circuits.
- Circuit block diagram of boost voltage generation Voltage and current waveform for boost voltage generation A step-up current waveform when step-up according to claim 2 is performed stepwise 4.
- Booster circuit configuration according to claim 3 A step-up current waveform when step-up according to claim 3 is performed stepwise Current profile with gradual current rise and fall
- the configuration of the booster circuit of the fuel injection device drive circuit 10 will be described with reference to FIG.
- the gate voltage Vg of the boost driver 1 When the gate voltage Vg of the boost driver 1 is turned on, the current I flows from the battery 2 to the GND via the shunt resistor 3, the boost coil 4, and the boost driver 1.
- the current at this time is detected as a voltage across the shunt resistor 3 by the voltage monitor 12 included in the booster circuit drive unit 5 inside the driver IC 9, and when the set Max current threshold is detected, the booster gate control circuit 11 detects the booster driver 1. Turn off. At that time, the current I flows through the boost diode 6 due to the back electromotive force of the boost coil 4.
- the boost capacitor 7 plays a role of temporarily storing the current flowing through the diode.
- FIG. 2 shows a waveform of the boosting operation.
- the gate signal for turning on the boost driver 1 is Vg. When this is turned on, the drain voltage Vd of the boost driver 1 is lowered to around 0 V, and the current I is increased.
- the gate signal Vg of the boost driver 1 is turned OFF.
- Vd reaches the boost voltage
- the current I flows to the boost diode 6 side and is stored in the boost capacitor 7, but the current value itself decreases with time.
- the booster driver 1 is turned ON again when the set Min current is reached, the operation of FIG. 2 is performed by repeating this operation. This operation is performed until the boosted voltage reaches the set value.
- the hatched portion in the figure is the current that actually flows through the boost diode 6 and is the current used for boosting. When this operation is performed, a waveform like the boosted voltage in FIG. 2 is obtained.
- the boosted voltage decreases until the peak current of the fuel injection current is reached. Since the boosted voltage is not used after reaching the peak current, the boosted voltage is gradually recovered by switching driving of the booster circuit.
- Vg is OFF, a current flows through the boost capacitor, so that the boost voltage rises.
- Vg is ON, no current flows into the boost capacitor and does not increase (slightly decreases because natural discharge is performed). By repeating this, boosting by Vg switching is performed until the boosted voltage reaches a predetermined value.
- An object is to reduce voltage fluctuation around the booster circuit generated by electromagnetic induction caused by current fluctuation by gradually increasing and lowering current at a target current value and relaxing current fluctuation.
- FIG. 3 is a diagram for explaining an embodiment of claims 1 and 2 of the present invention.
- FIG. 3 shows an example in which the current increase at the start of boosting is controlled stepwise by varying the ON / OFF duty and frequency of the boosting switch element. Since the current gradient T shown in FIG. 3 is determined by the circuit characteristics, the target current value control can be controlled by controlling the ON / OFF time of the boost switch element, that is, by the Duty and Cycle of the boost switch element. For example, when the voltage is stepped up to the final target current value N, the current value is increased to the target current value A by Duty_A1 and Cycle_A1 and the target current is increased by Duty_A2 and Cycle_A2 to increase the voltage to the first target current.
- the value A may be held for a certain period of time.
- the second-stage boosting is made Duty_B1 and Cycle_B1
- the N-th stage boosting is made Duty_N1 and Cycle_N1
- the boosting switch element Duty and Cycle are made variable a plurality of times, so that a step-by-step current increase at the start of boosting can be achieved. It becomes possible. Even in the stepwise current drop when the boosting is stopped, the stepwise current drop is realized by changing the duty and cycle of the boosting switch element a plurality of times as described above.
- FIG. 4 and FIG. 5 are diagrams illustrating embodiments of claims 3 and 4 of the present invention.
- FIG. 4 is a diagram provided with a boost current threshold value (plurality) 14 as compared with FIG. 1, and is provided with a plurality of Max current values, target current values, and Min current values shown in FIG.
- the basic operation of boosting is the same as the boosting circuit of the fuel injection device driving circuit 10 described above.
- the boosting current threshold value (plurality) 14 is provided in the electronic control device shown in claim 1 to start boosting shown in FIG. In the current increase and the current decrease that occur at the time of stopping and boosting, the current fluctuation until reaching the final target current is controlled in a stepwise manner over a plurality of times.
- FIG. 4 is a diagram provided with a boost current threshold value (plurality) 14 as compared with FIG. 1, and is provided with a plurality of Max current values, target current values, and Min current values shown in FIG.
- the basic operation of boosting is the same as the boosting
- the pressure increasing operation starts at the timing when the injection to the fuel drive valve is started.
- the boost gate control circuit 11 Based on the voltage detected by the voltage monitor 12 and information preset in the target current value 1 of the boost current threshold value (s) 14, the current upper limit threshold and the lower limit threshold are set to the threshold values.
- the boost gate control circuit 11 performs ON / OFF control of the switch element of the boost driver 1 so that the threshold value is not exceeded.
- the target value current 2 and the target value current 3 are stepped up stepwise by the same method as described above, and the voltage is boosted to the final target current value N. Even when boosting is stopped, a plurality of target current values are used in the same manner as the current rise at the start of boosting, whereby current holding and voltage drop due to boosting are repeated and the current is lowered stepwise.
- FIG. 6 shows an embodiment of claims 5 and 6 of the present invention.
- the determination of the current profile at the time of current increase / decrease of current increase / decrease in the above-mentioned stepwise current can be determined by the retention time of the target current value, the threshold value of the target current value, and the set number of target currents. .
- FIG. 6 shows a typical current profile example when the current rises and falls.
- T is the slope due to circuit performance
- y is the current
- m is the number of times of control at the time of boost control
- A is the target current value just before the start of current drop
- y T ⁇ m 2
- y A ⁇ T ⁇ m 2
- y A ⁇ T ⁇ m
- y A ⁇ T ⁇ ⁇ m, etc. .
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Physics & Mathematics (AREA)
- Nonlinear Science (AREA)
- Electrical Control Of Air Or Fuel Supplied To Internal-Combustion Engine (AREA)
- Dc-Dc Converters (AREA)
- Fuel-Injection Apparatus (AREA)
Abstract
Description
2…バッテリ
3…シャント抵抗
4…昇圧コイル
5…昇圧回路駆動部
6…昇圧ダイオード
7…昇圧コンデンサ
8…昇圧電圧をモニタする回路
9…ドライバIC
10…燃料噴射装置駆動回路
11…昇圧ゲート制御回路
12…電圧モニタ
14…昇圧電流閾値テーブル(複数)
15…カウンタ回路
16…時間閾値テーブル
Claims (6)
- 昇圧電圧を生成するために昇圧用スイッチ素子、コイル、ダイオード、昇圧電圧を蓄えるために搭載するコンデンサを有し、昇圧開始時の電流上昇及び昇圧停止時の電流下降の電流値を段階的に制御する事を特徴とした電子制御装置。
- 請求項1に記載した装置において、昇圧用スイッチ素子のON及びOFFのDuty及び周波数を可変することで、昇圧開始時の電流上昇及び昇圧停止時の電流下降の電流値を段階的に制御する事を特徴とした電子制御装置。
- 請求項1に記載した装置において、昇圧を電流制御するための電流モニタ回路を備え、昇圧を制御するための目標電流値を複数有し、昇圧開始時の電流上昇及び昇圧停止時の電流下降の電流値を段階的に制御する事を特徴とした電子制御装置。
- 請求項3に記載した装置において、複数の目標電流値に対して電流の上限閾値と下限閾値を有し、電流が閾値を越えた場合、昇圧用スイッチ素子により即座に閾値を越えないよう電流保持制御を行う電子制御装置。
- 請求項3に記載した装置において、段階的な電流上昇における電流プロファイルを、請求項4における電流保持制御の保持時間及び、請求項3における複数の目標電流値により可変可能な電子制御装置。
- 請求項3に記載した装置において、段階的な電流下降における電流プロファイルを、請求項4における電流保持制御の保持時間及び、請求項3における複数の目標電流値により可変可能な電子制御装置。
Priority Applications (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2016521023A JP6306695B2 (ja) | 2014-05-23 | 2015-05-07 | 電子制御装置 |
EP15796854.6A EP3148064B1 (en) | 2014-05-23 | 2015-05-07 | Electronic control device |
US15/313,270 US10122267B2 (en) | 2014-05-23 | 2015-05-07 | Electronic control device |
CN201580026908.2A CN106416033B (zh) | 2014-05-23 | 2015-05-07 | 电子控制装置 |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2014-106641 | 2014-05-23 | ||
JP2014106641 | 2014-05-23 |
Publications (1)
Publication Number | Publication Date |
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WO2015178199A1 true WO2015178199A1 (ja) | 2015-11-26 |
Family
ID=54553872
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/JP2015/063157 WO2015178199A1 (ja) | 2014-05-23 | 2015-05-07 | 電子制御装置 |
Country Status (5)
Country | Link |
---|---|
US (1) | US10122267B2 (ja) |
EP (1) | EP3148064B1 (ja) |
JP (1) | JP6306695B2 (ja) |
CN (1) | CN106416033B (ja) |
WO (1) | WO2015178199A1 (ja) |
Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2002176767A (ja) * | 2000-12-11 | 2002-06-21 | Fujitsu General Ltd | コンプレッサの制御方法 |
JP2004096937A (ja) * | 2002-09-03 | 2004-03-25 | Yokogawa Electric Corp | Dc−dc変換器 |
JP2006141184A (ja) * | 2004-11-15 | 2006-06-01 | Nec Saitama Ltd | 昇圧型dc/dcコンバータ |
JP2009005432A (ja) * | 2007-06-19 | 2009-01-08 | Kayaba Ind Co Ltd | 電源装置 |
JP2009254014A (ja) * | 2008-04-01 | 2009-10-29 | Nissan Motor Co Ltd | 電力変換装置の制御装置および制御方法 |
Family Cites Families (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP4474423B2 (ja) | 2007-01-12 | 2010-06-02 | 日立オートモティブシステムズ株式会社 | 内燃機関制御装置 |
JP4325710B2 (ja) * | 2007-07-13 | 2009-09-02 | 株式会社デンソー | 昇圧電源装置 |
JP5109775B2 (ja) * | 2008-04-11 | 2012-12-26 | 富士電機株式会社 | スイッチング電源 |
JP2011010380A (ja) | 2009-06-23 | 2011-01-13 | Aisin Aw Co Ltd | 直流電力変換装置 |
JP5233874B2 (ja) | 2009-06-29 | 2013-07-10 | 株式会社デンソー | 昇降圧コンバータ |
JP5470294B2 (ja) | 2011-02-02 | 2014-04-16 | 日立オートモティブシステムズ株式会社 | インジェクタ駆動回路 |
JP5576818B2 (ja) | 2011-03-22 | 2014-08-20 | パナソニック株式会社 | 点灯装置及びそれを用いた照明器具 |
JP5396446B2 (ja) | 2011-08-30 | 2014-01-22 | 日立オートモティブシステムズ株式会社 | 車載用電源装置 |
JP5880296B2 (ja) | 2012-06-06 | 2016-03-08 | 株式会社デンソー | 燃料噴射弁の駆動装置 |
JP5874607B2 (ja) | 2012-11-05 | 2016-03-02 | 株式会社デンソー | 燃料噴射制御装置および燃料噴射システム |
-
2015
- 2015-05-07 JP JP2016521023A patent/JP6306695B2/ja active Active
- 2015-05-07 EP EP15796854.6A patent/EP3148064B1/en active Active
- 2015-05-07 WO PCT/JP2015/063157 patent/WO2015178199A1/ja active Application Filing
- 2015-05-07 CN CN201580026908.2A patent/CN106416033B/zh active Active
- 2015-05-07 US US15/313,270 patent/US10122267B2/en active Active
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2002176767A (ja) * | 2000-12-11 | 2002-06-21 | Fujitsu General Ltd | コンプレッサの制御方法 |
JP2004096937A (ja) * | 2002-09-03 | 2004-03-25 | Yokogawa Electric Corp | Dc−dc変換器 |
JP2006141184A (ja) * | 2004-11-15 | 2006-06-01 | Nec Saitama Ltd | 昇圧型dc/dcコンバータ |
JP2009005432A (ja) * | 2007-06-19 | 2009-01-08 | Kayaba Ind Co Ltd | 電源装置 |
JP2009254014A (ja) * | 2008-04-01 | 2009-10-29 | Nissan Motor Co Ltd | 電力変換装置の制御装置および制御方法 |
Also Published As
Publication number | Publication date |
---|---|
US20170201172A1 (en) | 2017-07-13 |
JPWO2015178199A1 (ja) | 2017-04-20 |
EP3148064A1 (en) | 2017-03-29 |
EP3148064A4 (en) | 2018-07-18 |
CN106416033B (zh) | 2019-06-04 |
CN106416033A (zh) | 2017-02-15 |
US10122267B2 (en) | 2018-11-06 |
JP6306695B2 (ja) | 2018-04-04 |
EP3148064B1 (en) | 2021-03-10 |
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