WO2012133212A1 - 再利用二次電池供給予測システムおよび再利用二次電池供給予測用法 - Google Patents
再利用二次電池供給予測システムおよび再利用二次電池供給予測用法 Download PDFInfo
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- WO2012133212A1 WO2012133212A1 PCT/JP2012/057565 JP2012057565W WO2012133212A1 WO 2012133212 A1 WO2012133212 A1 WO 2012133212A1 JP 2012057565 W JP2012057565 W JP 2012057565W WO 2012133212 A1 WO2012133212 A1 WO 2012133212A1
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
- G01R31/36—Arrangements for testing, measuring or monitoring the electrical condition of accumulators or electric batteries, e.g. capacity or state of charge [SoC]
- G01R31/385—Arrangements for measuring battery or accumulator variables
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
- B60L58/00—Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles
- B60L58/10—Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles for monitoring or controlling batteries
- B60L58/16—Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles for monitoring or controlling batteries responding to battery ageing, e.g. to the number of charging cycles or the state of health [SoH]
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/42—Methods or arrangements for servicing or maintenance of secondary cells or secondary half-cells
- H01M10/48—Accumulators combined with arrangements for measuring, testing or indicating the condition of cells, e.g. the level or density of the electrolyte
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/54—Reclaiming serviceable parts of waste accumulators
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M2220/00—Batteries for particular applications
- H01M2220/20—Batteries in motive systems, e.g. vehicle, ship, plane
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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
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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
- 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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- 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
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W30/00—Technologies for solid waste management
- Y02W30/50—Reuse, recycling or recovery technologies
- Y02W30/84—Recycling of batteries or fuel cells
Definitions
- the present invention relates to a reuse secondary battery supply prediction system that predicts how much a reusable secondary battery is supplied, and a reuse secondary battery supply prediction method.
- Rechargeable batteries mounted on electric vehicles and the like use limited resources on the earth, such as nickel, cadmium, and cobalt. For this reason, from the viewpoint of environmental protection, reuse and recycling of secondary batteries are desired.
- Examples of the electric vehicle equipped with the secondary battery include an electric vehicle and a hybrid vehicle equipped with both an internal combustion engine and a motor. In order to drive such an electric vehicle with electricity, it is necessary to charge the mounted secondary battery from an external charger. Generally, when a secondary battery is used for a long period of time, performance deteriorates due to repeated charge and discharge. Degradation reduces the total capacity and maximum output current of the secondary battery. Further, as the battery deteriorates, the secondary battery expands and deforms.
- the manufacturing cost is very high. Therefore, if the secondary battery used in the vehicle has not deteriorated so much when the vehicle reaches the end of its life, it can be reused in another device to reduce the manufacturing cost of the other device. If the deterioration of the secondary battery used in the vehicle has progressed to the point where it cannot be reused when the vehicle reaches the end of its life, it is discarded to recycle rare metals and recycle the recycled material into a new one. By using the secondary battery for manufacturing, the manufacturing cost of the secondary battery can be reduced.
- Patent Document 1 discloses that battery information unique to a secondary battery is collected in a battery information management device on a communication network. It describes that grades are classified when reusing secondary batteries based on battery information unique to the secondary battery.
- Patent Document 1 Although the technology disclosed in Patent Document 1 is graded when the secondary battery is reused, when and how much reusable secondary battery is supplied and how much is supplied. There was a problem that it could not be predicted.
- an object of the present invention is to provide a system capable of predicting how much reusable secondary battery is supplied and how much is supplied.
- the reuse secondary battery supply prediction system receives, from a plurality of vehicles, performance information of secondary batteries mounted on each vehicle and vehicle state information for determining the life of each vehicle, Using the history of the vehicle state information to predict the arrival time of the vehicle's life, and using the performance information history of the secondary battery, the performance of the secondary battery when the vehicle's life has come Based on the prediction result of the performance of the secondary battery at the time when the life of each vehicle arrives, the supply amount of the reusable secondary battery at a future time is predicted A battery supply amount prediction unit.
- FIG. 1 is a block diagram showing a configuration of a reused secondary battery supply prediction system 10 according to Embodiment 1 of the present invention.
- the reuse secondary battery supply prediction system 10 includes a battery management server 20, a communication network 30, and a vehicle 40.
- the battery management server 20 and the vehicle 40 are connected via the communication network 30.
- the battery management server 20 includes a reuse battery supply prediction unit 201, a communication unit 202, and a battery database 203.
- the battery management server 20 may be a dedicated or general-purpose computer including a CPU, a memory such as a ROM or a RAM, an external storage device that stores various types of information, an input interface, an output interface, a communication interface, and a bus connecting them. it can.
- the battery management server 20 may be constituted by a single computer or may be constituted by a plurality of computers connected to each other via a communication line.
- the reusable battery supply prediction unit 201 and the communication unit 202 correspond to modules having functions realized by the CPU executing a predetermined program stored in a ROM or the like.
- the battery database 203 is implemented by an external storage device.
- FIG. 2 is a block diagram showing a detailed configuration of the battery management server 20.
- the reuse battery supply prediction unit 201 includes a vehicle life battery performance prediction unit 2011 and a battery supply amount prediction unit 2012.
- a communication unit 401, a battery management unit 402, and a secondary battery 403 are mounted on the vehicle 40.
- the secondary battery 403 is a lithium ion secondary battery, a nickel hydride secondary battery, a lead secondary battery, or a similar secondary battery.
- the communication unit 401 is a mobile phone, wireless LAN, infrared communication, power line communication on a power line connected during charging, or similar communication means.
- FIG. 3 is a flowchart showing the life cycle of the secondary battery 403.
- a material trading company procures and sells battery materials.
- Battery manufacturers procure new materials and recycled materials as battery materials, and manufacture and sell batteries.
- Automakers procure batteries, incorporate batteries into vehicles, and sell vehicles.
- Reusable battery trading company sorts out whether the battery of a vehicle that has reached the end of its life is reusable, sells reusable batteries, and discards non-reusable batteries.
- a device manufacturer of a device incorporating a reusable battery procures a reusable battery, incorporates the reusable battery into the device, and sells the reusable battery incorporated device.
- the recycler procures non-reusable waste batteries removed from the vehicle and the rechargeable battery built-in device, and recycles and sells materials, and processes waste that cannot be recycled.
- a reusable battery may be reused in another vehicle.
- a battery that has been reused may be reused for another device.
- the reuse battery supply amount and the waste battery supply amount predicted by the reuse secondary battery supply prediction system 10 according to the present embodiment are used by which business operator. Explain how.
- FIG. 4 is a sequence diagram of a process for predicting supply of a reusable battery.
- the process of the battery management unit 402 of the vehicle 40 will be described. First, it waits until it becomes the timing which transmits the performance information of the secondary battery 403, and the status information of the vehicle 40 to the battery management server 20 (step S101).
- the data transmission timing can be a timing at which a certain time such as one day or one week has elapsed.
- the vehicle 40 may be used as a timing when the vehicle is stopped and the key is removed, or a timing when charging is completed when the secondary battery 403 is charged.
- data is transmitted every other week.
- step S101 When the data transmission timing comes (step S101: YES), the battery management unit 402 performs measurement of the performance of the secondary battery 403 and measurement of the state of the vehicle 40 (step S102).
- the performance information of the secondary battery 403 the total capacity of the secondary battery 403 and the maximum output current of the secondary battery 403 are measured.
- performance deteriorates due to repeated charge and discharge, and the total capacity and maximum output current decrease.
- the secondary battery expands when the secondary battery is used for a long time. Therefore, the expansion of the secondary battery may be measured by a pressure sensor installed around the battery to obtain performance information.
- mileage and usage time are measured as vehicle status information.
- the vehicle 40 may be equipped with a GPS, and the measured latitude / longitude information may be used as the vehicle state.
- the measured battery performance and vehicle state are transmitted to the battery management server 20 (step S103).
- step S111 reception of battery performance and vehicle state information from the vehicle 40 is awaited.
- step S111 When the battery performance and the vehicle state are received from the vehicle 40 (step S111: YES), they are registered in the battery database 203 (step S112). At this time, if data is received from the vehicle 40 not registered in the database, a battery ID is assigned so that the battery can be identified. In the battery database 203, the battery performance and vehicle state history data of a specific vehicle are recorded for each battery.
- FIG. 5 is a diagram illustrating an example of battery performance and vehicle state history data of a specific vehicle.
- the history data includes the battery type that identifies the type of battery, the history number indicating the number of received data, the data recording date and time when the data was received and recorded, the distance traveled, and the location of use, as well as the current battery performance.
- the total battery capacity, current maximum battery output current, number of normal charges, and number of quick charges are recorded.
- step S113 it is determined whether or not the received battery history data has been recorded for a certain period or longer (step S113). Specifically, the history information recorded during a certain period is used to analyze what kind of change has occurred in the past, and vehicle life and future battery performance are predicted. In the present embodiment, the minimum accumulation period of history information for predicting vehicle life and future battery performance is assumed to be one year.
- step S114 the past battery performance and vehicle state history information related to the battery that received the information is referred to from the battery database 203 (step S114).
- step S115 the lifetime of the vehicle is predicted based on the history information of the vehicle state (step S115).
- FIG. 6 is a graph showing the relationship between the battery capacity, travel distance, and years of use of a specific vehicle.
- the vehicle is defined to have a life when a certain distance is reached. This mileage varies depending on the vehicle type. Specifically, for example, it is defined that the lifetime comes when the vehicle travels 100,000 kilometers.
- an approximate curve using a polynomial such as a quadratic curve or a similar approximate curve may be used to predict a future value of the travel distance.
- a method for determining the vehicle life a method of predicting based on the total time of actual driving of the vehicle may be used. For example, it may be determined that the vehicle has reached the end of its life after driving for 10,000 hours.
- the vehicle life may be determined based on the usage period. For example, if 10 years have passed since the start of use, the life of the vehicle is assumed.
- a means for allowing the user to freely define a travel distance, a use time, and a use period for determining the life may be provided.
- the battery performance during the vehicle life is predicted based on the battery performance history information (step S116).
- a method for predicting battery performance during vehicle life will be described with reference to FIG.
- the battery performance is defined by the deterioration rate of the total capacity of the battery.
- a graph is drawn by plotting points with the use period (years) and the battery capacity as both axes. By linearly approximating the plotted points, it is possible to draw a line for predicting a decrease in the deterioration rate of the total battery capacity.
- the life of the corresponding vehicle is predicted to be 7 years after the start of use, it can be predicted from the graph of FIG. 6 that the battery capacity at the time of the vehicle life (7 years of use) is 83%.
- an approximate curve using a polynomial such as a quadratic curve or a similar approximate curve may be used.
- the battery performance may be defined by the deterioration rate of the maximum output power amount during the vehicle life using the history information of the maximum output current of the battery.
- FIG. 7 shows an example of a list of data on the prediction results of the vehicle life and battery performance of a plurality of vehicles.
- the data includes the battery ID for identifying the battery, the battery type for identifying the battery type, the battery start date, the initial battery capacity, the vehicle life mileage defined for each vehicle type, the vehicle life prediction date and time, Information on the predicted battery total capacity deterioration rate is included.
- the battery supply amount prediction unit 2012 receives an inquiry about the battery supply amount prediction result from the user (step S121).
- the user can inquire by designating data of desired conditions. For example, the period and the battery type can be designated such as the predicted supply amount of the reusable battery of the battery type A in the period from April to September in 2020.
- step S122 the vehicle life for each battery and a database of battery performance prediction results at the time of the vehicle life are referred to (step S122).
- step S124 the battery performance prediction result of the battery corresponding to the battery type / supply time requested by the user, count the expected number of reused batteries, and display the table.
- the created table of predicted reuse battery supply is presented to the user (step S125).
- surface of the estimated supply amount of a reuse battery is shown.
- the user can refer to the expected supply number of reused batteries.
- Embodiment 2 the reuse secondary battery supply prediction system according to the present invention is applied to a reuse battery built-in device (vehicle).
- the configuration and operation of the reusable secondary battery supply prediction system according to the second embodiment are the same as those of the first embodiment.
- the performance information of the reused secondary battery mounted on the reused battery built-in device and the status information of the device are stored in the battery management server 203.
- the vehicle life battery performance prediction unit 2011 predicts the performance of the reused secondary battery when the life of the reuse battery built-in device comes.
- the battery supply amount prediction unit 2012 counts and provides the estimated number of reused battery supplies that meet the conditions specified by the user based on the battery performance prediction result of the battery.
- Embodiment 3 the reuse secondary battery supply prediction system according to the present invention is applied to a secondary battery other than the secondary battery mounted on the vehicle.
- a secondary battery other than the secondary battery mounted on the vehicle.
- a stationary storage battery for storing surplus power by solar power generation or wind power generation can be mentioned.
- the configuration and operation of the reusable secondary battery supply prediction system according to the third embodiment are the same as those in the first embodiment, but in the third embodiment, in order to predict the lifetime of the stationary storage battery, Instead of the travel distance parameter in the prediction of the vehicle life, the battery usage time and the amount of power that enters and exits the battery are stored in the battery management server 203.
- Embodiment 4 FIG.
- the reuse secondary battery supply prediction system according to the present invention is applied to the reuse prediction of a motor mounted on an electric vehicle.
- Rare earths such as neodymium are used for motors used in electric vehicles. For this reason, it is desirable to reuse and recycle motors for environmental conservation.
- vehicle life prediction is performed in the same manner as in the first embodiment.
- output torque, efficiency, and the like are measured, and reusability is determined based on these values.
- the vehicle state information is a mileage of the vehicle,
- the vehicle state information is the usage time of the vehicle,
- the performance information of the secondary battery is the total capacity of the secondary battery
- the vehicle life battery performance prediction unit calculates the total capacity of the secondary battery at the time of vehicle life arrival from the decreasing tendency of the total capacity of the secondary battery.
- the reuse secondary battery supply prediction system according to appendix 1, which predicts the performance of the secondary battery.
- the performance information of the secondary battery is a maximum output current of the secondary battery
- the vehicle life battery performance prediction unit calculates the maximum output current of the secondary battery at the time when the life of the vehicle comes from the decreasing tendency of the maximum output current of the secondary battery.
- the reuse secondary battery supply prediction system according to appendix 1, which predicts the performance of the secondary battery.
- (Appendix 7) Receiving performance information of secondary batteries mounted on each vehicle and vehicle status information for determining the life of each vehicle from a plurality of vehicles; Predicting the arrival time of the life of the vehicle using the history of the state information of the vehicle; Using the history of the performance information of the secondary battery, predicting the performance of the secondary battery when the life of the vehicle has arrived; Reusable secondary battery supply including the step of predicting the supply of reusable secondary batteries at a future time based on the predicted results of the performance of secondary batteries at the end of each vehicle's life Prediction method.
- the present invention is suitable for predicting when and how much performance of a reusable secondary battery is supplied.
Abstract
Description
次に、本発明を実施するための形態について、図面を参照して詳細に説明する。
図1は、本発明の実施の形態1による再利用二次電池供給予測システム10の構成を示すブロック図である。図に示すように、再利用二次電池供給予測システム10は、電池管理サーバ20と、通信ネットワーク30と、車両40を備えている。電池管理サーバ20と車両40は、通信ネットワーク30を介して接続されている。
図3は、二次電池403のライフサイクルを示すフロー図である。図3において、材料商社は、電池の材料を調達し、販売する。電池製造メーカは、電池の材料として新規の材料と再資源化されたリサイクル材料を調達し、電池を製造し、販売する。自動車製造メーカは、電池を調達し、電池を車両に組み込み、車両を販売する。
まず、車両40の電池管理部402の処理について説明する。
まず、電池管理サーバ20に、二次電池403の性能情報や車両40の状態情報を送信するタイミングになるまで待機する(ステップS101)。データ送信タイミングは、1日や1週間など一定時間が経過したタイミングとすることができる。または、車両40を利用し、停車してキーを抜いたタイミングや、二次電池403を充電した時の充電完了のタイミングとしてもよい。ここでは、一例として1週間おきにデータを送信する。
まず、車両40からの電池性能と車両状態の情報の受信を待機する(ステップS111)。
まず、電池供給量予測部2012が、ユーザから電池供給量予測結果の問い合わせを受信する(ステップS121)。ユーザは、所望の条件のデータを指定して問い合わせを行うことができる。例えば、2020年の4月から9月の期間における電池種類Aの再利用可能な電池の予測供給量というように、期間と電池種類を指定することができる。
実施の形態2では、本発明に係る再利用二次電池供給予測システムを再利用電池組み込み装置(車両)に適用する。
実施の形態3では、本発明に係る再利用二次電池供給予測システムを車両に搭載された二次電池以外の二次電池に適用する。具体的には、例えば、太陽発電や風力発電による余剰電力を蓄電するための定置用蓄電池が挙げられる。
実施の形態4では、本発明に係る再利用二次電池供給予測システムを電動車両に搭載されているモータの再利用予測に適用する。電動車両に用いられるモータには、ネオジムなどのレアアースが利用されている。そのため、地球の環境保全のためにもモータを再利用、再資源化をすることが望まれる。
(付記1)複数の車両から、各々の車両に搭載された二次電池の性能情報および各車両の寿命を判断するための車両の状態情報を受信し、前記車両の状態情報の履歴を用いてその車両の寿命の到来時期を予測するとともに、前記二次電池の性能情報の履歴を用いて、その車両の寿命が到来したときの前記二次電池の性能を予測する車両寿命電池性能予測部と、
各々の車両の寿命到来時点での二次電池の性能の予測結果に基づいて、将来のある時点における再利用可能な二次電池の供給量を予測する電池供給量予測部と、を備えた再利用二次電池供給予測システム。
前記車両寿命電池性能予測部は、車両の走行距離の増加傾向から、所定の走行距離に達する時期を算出することにより、その車両の寿命到来時期を予測する、付記1に記載の再利用二次電池供給予測システム。
前記車両寿命電池性能予測部は、車両の使用時間の増加傾向から、所定の使用時間に達する時期を算出することにより、その車両の寿命到来時期を予測する、付記1に記載の再利用二次電池供給予測システム。
前記車両寿命電池性能予測部は、二次電池の総容量の減少傾向から、車両の寿命到来時点でのその二次電池の総容量を算出することにより、前記車両の寿命到来時点での前記二次電池の性能を予測する、付記1に記載の再利用二次電池供給予測システム。
前記車両寿命電池性能予測部は、二次電池の最大出力電流の減少傾向から、車両の寿命到来時点でのその二次電池の最大出力電流を算出することにより、前記車両の寿命到来時点での前記二次電池の性能を予測する、付記1に記載の再利用二次電池供給予測システム。
前記車両の状態情報の履歴を用いてその車両の寿命の到来時期を予測するステップと、
前記二次電池の性能情報の履歴を用いて、その車両の寿命が到来したときの前記二次電池の性能を予測するステップと、
各々の車両の寿命到来時点での二次電池の性能の予測結果に基づいて、将来のある時点における再利用可能な二次電池の供給量を予測するステップと、を含む再利用二次電池供給予測方法。
Claims (7)
- 複数の車両から、各々の車両に搭載された二次電池の性能情報および各車両の寿命を判断するための車両の状態情報を受信し、前記車両の状態情報の履歴を用いてその車両の寿命の到来時期を予測するとともに、前記二次電池の性能情報の履歴を用いて、その車両の寿命が到来したときの前記二次電池の性能を予測する車両寿命電池性能予測部と、
各々の車両の寿命到来時点での二次電池の性能の予測結果に基づいて、将来のある時点における再利用可能な二次電池の供給量を予測する電池供給量予測部と、を備えた再利用二次電池供給予測システム。 - 前記車両の状態情報は、車両の走行距離であり、
前記車両寿命電池性能予測部は、車両の走行距離の増加傾向から、所定の走行距離に達する時期を算出することにより、その車両の寿命到来時期を予測する、請求項1に記載の再利用二次電池供給予測システム。 - 前記車両の状態情報は、車両の使用時間であり、
前記車両寿命電池性能予測部は、車両の使用時間の増加傾向から、所定の使用時間に達する時期を算出することにより、その車両の寿命到来時期を予測する、請求項1に記載の再利用二次電池供給予測システム。 - 前記二次電池の性能情報は、二次電池の総容量であり、
前記車両寿命電池性能予測部は、二次電池の総容量の減少傾向から、車両の寿命到来時点でのその二次電池の総容量を算出することにより、前記車両の寿命到来時点での前記二次電池の性能を予測する、請求項1に記載の再利用二次電池供給予測システム。 - 前記二次電池の性能情報は、二次電池の最大出力電流であり、
前記車両寿命電池性能予測部は、二次電池の最大出力電流の減少傾向から、車両の寿命到来時点でのその二次電池の最大出力電流を算出することにより、前記車両の寿命到来時点での前記二次電池の性能を予測する、請求項1に記載の再利用二次電池供給予測システム。 - 各車両から前記車両の状態情報および前記二次電池の性能情報を受信するタイミングが、前回の受信時から一定時間経過後、二次電池の充電完了時、および車両の使用終了時のうちの少なくとも1つである、請求項1から5のいずれかに記載の再利用二次電池供給予測システム。
- 複数の車両から、各々の車両に搭載された二次電池の性能情報および各車両の寿命を判断するための車両の状態情報を受信するステップと、
前記車両の状態情報の履歴を用いてその車両の寿命の到来時期を予測するステップと、
前記二次電池の性能情報の履歴を用いて、その車両の寿命が到来したときの前記二次電池の性能を予測するステップと、
各々の車両の寿命到来時点での二次電池の性能の予測結果に基づいて、将来のある時点における再利用可能な二次電池の供給量を予測するステップと、を含む再利用二次電池供給予測方法。
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US20140195181A1 (en) | 2014-07-10 |
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