JP6795430B2 - 蒸発燃料処理装置 - Google Patents
蒸発燃料処理装置 Download PDFInfo
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- JP6795430B2 JP6795430B2 JP2017048699A JP2017048699A JP6795430B2 JP 6795430 B2 JP6795430 B2 JP 6795430B2 JP 2017048699 A JP2017048699 A JP 2017048699A JP 2017048699 A JP2017048699 A JP 2017048699A JP 6795430 B2 JP6795430 B2 JP 6795430B2
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
- F02M25/00—Engine-pertinent apparatus for adding non-fuel substances or small quantities of secondary fuel to combustion-air, main fuel or fuel-air mixture
- F02M25/08—Engine-pertinent apparatus for adding non-fuel substances or small quantities of secondary fuel to combustion-air, main fuel or fuel-air mixture adding fuel vapours drawn from engine fuel reservoir
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
- B60K15/00—Arrangement in connection with fuel supply of combustion engines or other fuel consuming energy converters, e.g. fuel cells; Mounting or construction of fuel tanks
- B60K15/03—Fuel tanks
- B60K15/035—Fuel tanks characterised by venting means
- B60K15/03504—Fuel tanks characterised by venting means adapted to avoid loss of fuel or fuel vapour, e.g. with vapour recovery systems
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02D—CONTROLLING COMBUSTION ENGINES
- F02D41/00—Electrical control of supply of combustible mixture or its constituents
- F02D41/0025—Controlling engines characterised by use of non-liquid fuels, pluralities of fuels, or non-fuel substances added to the combustible mixtures
- F02D41/003—Adding fuel vapours, e.g. drawn from engine fuel reservoir
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
- F02M25/00—Engine-pertinent apparatus for adding non-fuel substances or small quantities of secondary fuel to combustion-air, main fuel or fuel-air mixture
- F02M25/08—Engine-pertinent apparatus for adding non-fuel substances or small quantities of secondary fuel to combustion-air, main fuel or fuel-air mixture adding fuel vapours drawn from engine fuel reservoir
- F02M25/0836—Arrangement of valves controlling the admission of fuel vapour to an engine, e.g. valve being disposed between fuel tank or absorption canister and intake manifold
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
- F02M25/00—Engine-pertinent apparatus for adding non-fuel substances or small quantities of secondary fuel to combustion-air, main fuel or fuel-air mixture
- F02M25/08—Engine-pertinent apparatus for adding non-fuel substances or small quantities of secondary fuel to combustion-air, main fuel or fuel-air mixture adding fuel vapours drawn from engine fuel reservoir
- F02M25/0854—Details of the absorption canister
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
- F02M25/00—Engine-pertinent apparatus for adding non-fuel substances or small quantities of secondary fuel to combustion-air, main fuel or fuel-air mixture
- F02M25/08—Engine-pertinent apparatus for adding non-fuel substances or small quantities of secondary fuel to combustion-air, main fuel or fuel-air mixture adding fuel vapours drawn from engine fuel reservoir
- F02M25/0872—Details of the fuel vapour pipes or conduits
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
- B60K15/00—Arrangement in connection with fuel supply of combustion engines or other fuel consuming energy converters, e.g. fuel cells; Mounting or construction of fuel tanks
- B60K15/03—Fuel tanks
- B60K15/035—Fuel tanks characterised by venting means
- B60K2015/03561—Venting means working at specific times
- B60K2015/03566—Venting means working at specific times comprising means for stopping the venting of fuel vapor, e.g. during refueling or engine stop
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
- B60K15/00—Arrangement in connection with fuel supply of combustion engines or other fuel consuming energy converters, e.g. fuel cells; Mounting or construction of fuel tanks
- B60K15/03—Fuel tanks
- B60K15/035—Fuel tanks characterised by venting means
- B60K2015/03561—Venting means working at specific times
- B60K2015/03576—Venting during filling the reservoir
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02D—CONTROLLING COMBUSTION ENGINES
- F02D41/00—Electrical control of supply of combustible mixture or its constituents
- F02D41/0025—Controlling engines characterised by use of non-liquid fuels, pluralities of fuels, or non-fuel substances added to the combustible mixtures
- F02D41/003—Adding fuel vapours, e.g. drawn from engine fuel reservoir
- F02D41/0032—Controlling the purging of the canister as a function of the engine operating conditions
- F02D41/004—Control of the valve or purge actuator, e.g. duty cycle, closed loop control of position
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02D—CONTROLLING COMBUSTION ENGINES
- F02D41/00—Electrical control of supply of combustible mixture or its constituents
- F02D41/24—Electrical control of supply of combustible mixture or its constituents characterised by the use of digital means
- F02D41/2406—Electrical control of supply of combustible mixture or its constituents characterised by the use of digital means using essentially read only memories
- F02D41/2425—Particular ways of programming the data
- F02D41/2429—Methods of calibrating or learning
- F02D41/2451—Methods of calibrating or learning characterised by what is learned or calibrated
- F02D41/2464—Characteristics of actuators
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Sustainable Development (AREA)
- Sustainable Energy (AREA)
- Transportation (AREA)
- Supplying Secondary Fuel Or The Like To Fuel, Air Or Fuel-Air Mixtures (AREA)
Description
図1に示すように、車両1は、走行用駆動源として設けられ、ガソリンエンジンとして構成された内燃機関2と、内燃機関2の燃料であるガソリンを貯留する燃料タンク3とを備えている。燃料タンク3に貯留された燃料Fは燃料ポンプ4にて吸い上げられてフィードパイプ5及び燃料噴射弁6を介して内燃機関2の吸気通路7に供給される。吸気通路7には空気濾過用のエアフィルタ8と吸入空気量を調整するスロットルバルブ9とが設けられている。
次に、本発明の第2の形態を図6及び図7を参照しながら説明する。第2の形態は減圧制御の内容を除いて第1の形態と共通する。したがって、以下においては物理的構成等の第1の形態との共通部分の説明を省略し、上述した第1の形態の説明及び図面が適宜参照される。
次に、本発明の第3の形態を図8及び図9を参照しながら説明する。第3の形態は減圧制御の内容を除いて第1の形態と共通する。したがって、以下においては物理的構成等の第1の形態との共通部分の説明を省略し、上述した第1の形態の説明及び図面が適宜参照される。
・判定領域Rb:PTb<PT≦PTc、駆動周期B
・判定領域Rc:PTc<PT≦PTd、駆動周期C
・判定領域Rd:PT>PTd、駆動周期D
ただし、各閾値PTa〜PTdには、PTa<PTb<PTc<PTdの関係が成立し、各駆動周期A〜Dには、A<B<C<Dの関係が成立している。
次に、本発明の第4の形態を図10及び図11を参照しながら説明する。第4の形態は減圧制御の内容を除いて第1の形態と共通する。したがって、以下においては物理的構成等の第1の形態との共通部分の説明を省略し、上述した第1の形態の説明及び図面が適宜参照される。
2 内燃機関
3 燃料タンク
17 蒸発燃料処理装置
18 キャニスタ
19 ベーパ通路
20 封鎖弁
23 ORVRバルブ(弁装置)
23a 弁体
29 圧力センサ(検出手段)
70 ECU(制御手段)
Claims (2)
- 車両の燃料タンク内で発生した蒸発燃料を吸着するキャニスタと、
前記キャニスタと前記燃料タンクとを接続するベーパ通路と、
前記ベーパ通路に設けられ、前記ベーパ通路を流れる蒸発燃料の流量を調整できるように開度変更可能な封鎖弁と、
前記燃料タンクの燃料レベルに応じたフロート式の弁体の変位を利用して前記ベーパ通路を開閉する弁装置と、
前記燃料タンクへの給油前に当該燃料タンクの内圧が減圧されるように前記封鎖弁を制御する減圧制御を行う制御手段と、
を備え、
前記制御手段は、前記燃料タンクへの給油前において前記内圧が所定値を超える場合、前記ベーパ通路の流量が前記弁装置の前記弁体にて前記ベーパ通路が閉鎖される限界流量を超えない範囲で前記内圧の減圧が進行し、かつ前記内圧が低くなるほど前記封鎖弁の開弁速度が速くなるように前記内圧を監視しながら前記減圧制御を行い、
前記内圧に関し、その大きさ毎に段階分けされた複数の判定領域が設定されており、
前記制御手段は、同じ前記判定領域内では前記封鎖弁の開弁速度が一定に維持され、かつ低段階の前記判定領域ほど前記封鎖弁の開弁速度が速くなるように前記減圧制御を行うことを特徴とする蒸発燃料処理装置。 - 車両の燃料タンク内で発生した蒸発燃料を吸着するキャニスタと、
前記キャニスタと前記燃料タンクとを接続するベーパ通路と、
前記ベーパ通路に設けられ、前記ベーパ通路を流れる蒸発燃料の流量を調整できるように開度変更可能な封鎖弁と、
前記燃料タンクの燃料レベルに応じたフロート式の弁体の変位を利用して前記ベーパ通路を開閉する弁装置と、
前記燃料タンクへの給油前に当該燃料タンクの内圧が減圧されるように前記封鎖弁を制御する減圧制御を行う制御手段と、
を備え、
前記制御手段は、前記燃料タンクへの給油前において前記内圧が所定値を超える場合、前記ベーパ通路の流量が前記弁装置の前記弁体にて前記ベーパ通路が閉鎖される限界流量を超えない範囲で前記内圧の減圧が進行し、かつ前記内圧が低くなるほど前記封鎖弁の開弁速度が速くなるように前記内圧を監視しながら前記減圧制御を行うとともに、前記減圧制御を開始してから前記内圧の変化量が所定量を超えるまで前記ベーパ通路の流量が前記限界流量を超えないことを限度として設定された開弁速度で駆動されるように、前記封鎖弁を制御することを特徴とする蒸発燃料処理装置。
Priority Applications (4)
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JP2017048699A JP6795430B2 (ja) | 2017-03-14 | 2017-03-14 | 蒸発燃料処理装置 |
US15/870,914 US10556503B2 (en) | 2017-03-14 | 2018-01-13 | Evaporated fuel treatment device |
CN201810039336.7A CN108571400B (zh) | 2017-03-14 | 2018-01-16 | 蒸发燃料处理装置 |
DE102018103285.4A DE102018103285B4 (de) | 2017-03-14 | 2018-02-14 | Vorrichtung zur Behandlung von verdampftem Kraftstoff |
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JP2017048699A JP6795430B2 (ja) | 2017-03-14 | 2017-03-14 | 蒸発燃料処理装置 |
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JP2018150900A JP2018150900A (ja) | 2018-09-27 |
JP6795430B2 true JP6795430B2 (ja) | 2020-12-02 |
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US (1) | US10556503B2 (ja) |
JP (1) | JP6795430B2 (ja) |
CN (1) | CN108571400B (ja) |
DE (1) | DE102018103285B4 (ja) |
Families Citing this family (6)
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JP6683594B2 (ja) * | 2016-12-21 | 2020-04-22 | トヨタ自動車株式会社 | 蒸発燃料処理装置 |
JP2020133503A (ja) * | 2019-02-20 | 2020-08-31 | 愛三工業株式会社 | 蒸発燃料処理装置 |
JP7107870B2 (ja) * | 2019-02-25 | 2022-07-27 | トヨタ自動車株式会社 | 内燃機関の給油制御装置 |
JP2021120556A (ja) * | 2020-01-30 | 2021-08-19 | 株式会社デンソー | 蒸発燃料処理装置 |
JP2021120555A (ja) * | 2020-01-30 | 2021-08-19 | 株式会社デンソー | 蒸発燃料処理装置 |
JP7516311B2 (ja) | 2021-05-06 | 2024-07-16 | 愛三工業株式会社 | 燃料タンク構造 |
Family Cites Families (20)
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JP5558861B2 (ja) * | 2010-02-19 | 2014-07-23 | 本田技研工業株式会社 | 蒸発燃料処理装置 |
US8627802B2 (en) * | 2010-02-19 | 2014-01-14 | Honda Motor Co., Ltd. | Evaporated fuel treatment apparatus and method of detecting failure in control valve |
JP5936985B2 (ja) * | 2012-10-12 | 2016-06-22 | 愛三工業株式会社 | 蒸発燃料処理装置 |
WO2015002063A1 (ja) | 2013-07-02 | 2015-01-08 | 愛三工業株式会社 | 流量制御弁及び流量制御弁を備えた蒸発燃料処理装置 |
JP6100148B2 (ja) | 2013-11-25 | 2017-03-22 | 愛三工業株式会社 | 蒸発燃料処理装置 |
JP6076885B2 (ja) | 2013-11-25 | 2017-02-08 | 愛三工業株式会社 | 蒸発燃料処理装置 |
DE102014017159B4 (de) | 2013-11-25 | 2017-01-26 | Aisan Kogyo Kabushiki Kaisha | Kraftstoffdampfverarbeitungsvorrichtung |
DE112014005351B4 (de) | 2013-11-25 | 2018-03-08 | Aisan Kogyo Kabushiki Kaisha | Kraftstoffdampf-Bearbeitungsvorrichtung |
JP6087266B2 (ja) | 2013-12-06 | 2017-03-01 | 愛三工業株式会社 | 蒸発燃料処理装置 |
JP6073212B2 (ja) | 2013-12-06 | 2017-02-01 | 愛三工業株式会社 | 蒸発燃料処理装置 |
JP2015214949A (ja) * | 2014-05-13 | 2015-12-03 | 愛三工業株式会社 | 蒸発燃料処理装置 |
CN106795834B (zh) * | 2014-09-01 | 2019-03-15 | 爱三工业株式会社 | 蒸发燃料处理装置 |
JP2016065523A (ja) * | 2014-09-25 | 2016-04-28 | 三菱自動車工業株式会社 | 蒸散燃料処理装置 |
EP3025892B1 (en) * | 2014-11-27 | 2018-03-07 | Plastic Omnium Advanced Innovation and Research | Method for controlling a pressure inside vehicular fuel tank system |
JP6287809B2 (ja) * | 2014-12-19 | 2018-03-07 | トヨタ自動車株式会社 | 燃料タンクシステム |
US9956867B2 (en) * | 2015-08-19 | 2018-05-01 | Ford Global Technologies, Llc | Systems and methods for a latchable refueling valve |
JP6288011B2 (ja) | 2015-08-31 | 2018-03-07 | トヨタ自動車株式会社 | 内燃機関 |
US10337463B2 (en) * | 2015-10-22 | 2019-07-02 | Ford Global Technologies, Llc | Systems and methods for fuel tank pressure control |
JP6586369B2 (ja) * | 2016-01-27 | 2019-10-02 | 愛三工業株式会社 | 蒸発燃料処理装置 |
JP2018159305A (ja) * | 2017-03-22 | 2018-10-11 | トヨタ自動車株式会社 | 蒸発燃料処理装置 |
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2018
- 2018-01-13 US US15/870,914 patent/US10556503B2/en active Active
- 2018-01-16 CN CN201810039336.7A patent/CN108571400B/zh active Active
- 2018-02-14 DE DE102018103285.4A patent/DE102018103285B4/de active Active
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Publication number | Publication date |
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DE102018103285A1 (de) | 2018-10-04 |
DE102018103285B4 (de) | 2023-11-16 |
US10556503B2 (en) | 2020-02-11 |
CN108571400A (zh) | 2018-09-25 |
CN108571400B (zh) | 2020-07-28 |
JP2018150900A (ja) | 2018-09-27 |
US20180264937A1 (en) | 2018-09-20 |
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