JP7490460B2 - 診断システム - Google Patents
診断システム Download PDFInfo
- Publication number
- JP7490460B2 JP7490460B2 JP2020101611A JP2020101611A JP7490460B2 JP 7490460 B2 JP7490460 B2 JP 7490460B2 JP 2020101611 A JP2020101611 A JP 2020101611A JP 2020101611 A JP2020101611 A JP 2020101611A JP 7490460 B2 JP7490460 B2 JP 7490460B2
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- Prior art keywords
- secondary battery
- charging
- remaining capacity
- unit
- diagnosed
- 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.)
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- 230000008929 regeneration Effects 0.000 claims description 39
- 238000011069 regeneration method Methods 0.000 claims description 39
- 230000001172 regenerating effect Effects 0.000 claims description 25
- 230000006866 deterioration Effects 0.000 claims description 20
- 230000006870 function Effects 0.000 claims description 20
- 238000003745 diagnosis Methods 0.000 claims description 15
- 230000015556 catabolic process Effects 0.000 claims description 10
- 238000006731 degradation reaction Methods 0.000 claims description 10
- HBBGRARXTFLTSG-UHFFFAOYSA-N Lithium ion Chemical compound [Li+] HBBGRARXTFLTSG-UHFFFAOYSA-N 0.000 description 46
- 229910001416 lithium ion Inorganic materials 0.000 description 46
- 238000007599 discharging Methods 0.000 description 13
- 238000010586 diagram Methods 0.000 description 9
- 238000000034 method Methods 0.000 description 8
- 230000007704 transition Effects 0.000 description 7
- 238000002405 diagnostic procedure Methods 0.000 description 4
- 238000005381 potential energy Methods 0.000 description 4
- HEZMWWAKWCSUCB-PHDIDXHHSA-N (3R,4R)-3,4-dihydroxycyclohexa-1,5-diene-1-carboxylic acid Chemical compound O[C@@H]1C=CC(C(O)=O)=C[C@H]1O HEZMWWAKWCSUCB-PHDIDXHHSA-N 0.000 description 2
- 238000005070 sampling Methods 0.000 description 2
- 230000035945 sensitivity Effects 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 229910002804 graphite Inorganic materials 0.000 description 1
- 239000010439 graphite Substances 0.000 description 1
Images
Classifications
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- 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
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/10—Energy storage using 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
- Y02T10/70—Energy storage systems for electromobility, e.g. batteries
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- Charge And Discharge Circuits For Batteries Or The Like (AREA)
- Secondary Cells (AREA)
- Electric Propulsion And Braking For Vehicles (AREA)
Description
Claims (3)
- 温度、劣化状態、及びCレートの組み合わせ毎の二次電池の充電曲線の微分曲線を記憶する記憶部と、
温度、劣化状態、及びCレートの情報を含む診断対象二次電池の充電制御に係る充電条件と、該診断対象二次電池を駆動用バッテリとする車両の予測走行経路を含む走行予測情報と、を取得する取得部と、
前記記憶部に記憶された各微分曲線の中から、前記取得部によって取得された前記充電条件に合致する前記微分曲線を特定し、特定した該微分曲線におけるピーク箇所を特定する特定部と、
前記走行予測情報に基づき、一定区間回生電流が得られる回生区間と該回生区間の始点における前記診断対象二次電池の残存容量とを推定し、前記回生区間の始点を充電開始位置に決定する決定部と、
前記決定部によって決定された前記充電開始位置における前記診断対象二次電池の残存容量が、前記特定部によって特定された前記ピーク箇所における二次電池の残存容量よりも小さくなるように、前記診断対象二次電池の残存容量を調整する調整部と、
前記調整部によって残存容量が調整された前記診断対象二次電池について、前記充電開始位置から充電制御を開始する充電制御部と、を備える二次電池の診断システム。 - 前記調整部は、前記車両において走行以外の機能によって電力が消費されるように前記診断対象二次電池の強制放電制御を行うことにより、前記診断対象二次電池の残存容量を調整する、請求項1記載の診断システム。
- 前記充電制御部は、前記回生区間において、要求される制動力が所定値を超えた場合に、超過分の制動力をモータ以外の制動装置が担うように前記充電制御を行うことにより、モータの回生電流を一定にする、請求項1又は2記載の診断システム。
Priority Applications (1)
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JP2020101611A JP7490460B2 (ja) | 2020-06-11 | 2020-06-11 | 診断システム |
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JP2020101611A JP7490460B2 (ja) | 2020-06-11 | 2020-06-11 | 診断システム |
Publications (2)
Publication Number | Publication Date |
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JP2021197241A JP2021197241A (ja) | 2021-12-27 |
JP7490460B2 true JP7490460B2 (ja) | 2024-05-27 |
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JP2020101611A Active JP7490460B2 (ja) | 2020-06-11 | 2020-06-11 | 診断システム |
Country Status (1)
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Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2012181976A (ja) | 2011-03-01 | 2012-09-20 | Hitachi Ltd | リチウム二次電池の異常充電状態検出装置及び検査方法 |
JP2015155859A (ja) | 2014-02-21 | 2015-08-27 | ソニー株式会社 | 電池残量推定装置、電池パック、蓄電装置、電動車両および電池残量推定方法 |
JP2019045351A (ja) | 2017-09-04 | 2019-03-22 | 三菱自動車工業株式会社 | 二次電池システム |
-
2020
- 2020-06-11 JP JP2020101611A patent/JP7490460B2/ja active Active
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2012181976A (ja) | 2011-03-01 | 2012-09-20 | Hitachi Ltd | リチウム二次電池の異常充電状態検出装置及び検査方法 |
JP2015155859A (ja) | 2014-02-21 | 2015-08-27 | ソニー株式会社 | 電池残量推定装置、電池パック、蓄電装置、電動車両および電池残量推定方法 |
JP2019045351A (ja) | 2017-09-04 | 2019-03-22 | 三菱自動車工業株式会社 | 二次電池システム |
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