JP2013084198A - Battery retrieval device and battery retrieval method - Google Patents

Abstract

PROBLEM TO BE SOLVED: To estimate deterioration condition of a used battery after battery replacement in consideration of a vehicle use method by a user, and retrieve a used battery suitable for the user on the basis of the estimated deterioration condition.SOLUTION: On the basis of pieces of vehicle information on a battery to be replaced and on substitute candidate battery, a vehicle use method by a user is analysed (step S2). Deterioration condition of the substitute candidate battery after the user of the battery to be replaced replaces it with the substitute candidate battery is estimated on the basis of a running distance at a replacement timing with the substitute candidate battery and a deterioration curve corresponding to the vehicle use method by the user of the battery to be replaced (Steps S4 and S8). On the basis of the estimated deterioration condition of the substitute candidate battery, a used battery affording a running distance suitable for the vehicle use method by the user of the battery to be replaced and satisfying the desire of the user of the battery to be replaced in terms of a usable period and a price is selected (Step S5, Steps S9 to S11), and presented as the optimal battery in a user terminal 7 (Step S12).

Description

  The present invention relates to a battery search device and a battery search method for searching for a battery suitable for an electric vehicle when the battery mounted on the electric vehicle using an electric motor driven by a battery as a drive source is replaced.

For example, an electric vehicle using an electric motor that is driven by using electric power stored in a battery as a drive source is generally used. Along with this, it is conceivable that used batteries will be bought and sold as well as used electric cars are bought and sold.
Here, the current deterioration degree of the battery is different depending on each battery, and the deterioration degree of the battery is different depending not only on the length of the use period but also on the usage. Therefore, when a used battery is bought and sold in this way, if any user purchases a used battery, how long the battery currently has, and how this user uses the vehicle When a battery is used, it is necessary to know in advance how long this battery can be used in the future.

  That is, the user's profile indicating how to use the battery of the user who wishes to purchase the used battery, that is, the method of using the vehicle on which the battery is mounted, and the profile of the used battery indicating the current degree of deterioration of the used battery. Therefore, it is necessary to match a used battery suitable for a vehicle usage method of a user who desires to purchase a used battery.

  As a method for providing a used battery suitable for a user who wishes to purchase such a used battery, for example, as described in Patent Document 1, the battery provider side manages the mounted battery mounted in the electric vehicle. When a user needs to replace a battery, a system that matches a user who desires to provide a charged battery with a battery held by a service station has been proposed.

JP 2010-146473 A

  However, in the above-described conventional system, the condition considered when matching a user who wants to provide a charged battery with a battery to be provided is basically the remaining battery capacity of the battery. In other words, it is intended to smoothly provide a charged battery to users of vehicles with low remaining battery capacity, so the degree of deterioration of the battery and how the user uses the battery are the matching conditions. Not considered.

Therefore, simply applying the prior art as a method for providing a used battery suitable for a user who wants to purchase a used battery does not necessarily provide a battery suitable for the usage of the battery of each user, that is, the method of using an electric vehicle. The problem of not always happening.
Therefore, the present invention has been made paying attention to the above-mentioned conventional unsolved problems, and a battery search device and a battery suitable for searching for a used battery suitable for a user who desires replacement with a used battery. The purpose is to provide a search method.

In order to achieve the above object, the deterioration characteristic information representing the deterioration characteristics of the battery before replacement of the electric vehicle and the replacement candidate battery which is another battery that is a replacement candidate of the battery before replacement is acquired and acquired. Based on the deterioration characteristic information, the deterioration state of the replacement candidate battery after the replacement battery is replaced with the replacement candidate battery is predicted. The deterioration characteristic information of the battery before replacement reflects the vehicle usage method of the user of the electric vehicle on which the battery before replacement is mounted. Further, the current battery deterioration state of the replacement candidate battery is reflected in the deterioration characteristic information of the replacement candidate battery.
Therefore, the deterioration characteristic information of the replacement candidate battery after replacement predicted based on the deterioration characteristic information of the battery before replacement and the deterioration characteristic information of the replacement candidate battery is the vehicle of the user of the electric vehicle on which the battery before replacement is mounted. Deterioration characteristics reflecting usage.

  According to the present invention, the replacement candidate after replacement based on the deterioration characteristic information of the pre-replacement battery and the deterioration characteristic information of the replacement candidate battery reflecting the vehicle usage method of the user of the electric vehicle equipped with the pre-replacement battery. In order to predict the deterioration characteristic information of the battery, the deterioration characteristic information reflecting the vehicle usage method of the user who will use the replacement candidate battery after replacement can be predicted, and the deterioration characteristic information is predicted more accurately. be able to.

It is a block diagram which shows an example of a structure of the battery search device of this invention. It is a block diagram which shows an example of a function structure of an information processing server. It is a flowchart which shows an example of the process sequence of a battery search process. It is explanatory drawing with which it uses for operation | movement description of this invention.

Hereinafter, an embodiment of the present invention will be described.
(Constitution)
FIG. 1 is an example of a block diagram showing a schematic configuration of a battery search device 100 of the present invention.
As shown in FIG. 1, the battery search device 100 includes an information processing server 2 connected to the Internet communication network 1 and a database 3, and is constructed as an APS (application service provider) type system. .
The Internet communication network 1 is owned by a service provider that sells used batteries, a business management terminal 5 that manages the used batteries owned by the service provider, and a user who is considering purchasing a used battery. An information processing terminal (hereinafter also referred to as a user terminal) 7 and a vehicle information collecting device 9 as an in-vehicle device terminal mounted on each electric vehicle Cr are connected.

  In addition, although the case where the electric vehicle Cr was applied was demonstrated here, it is not restricted to an electric vehicle. The vehicle may be an electric vehicle that uses an electric motor driven by a battery as a driving source. For example, a vehicle that uses only an electric motor driven by a battery as a driving source, or a hybrid vehicle that uses an engine and an electric motor as driving sources, or a plug-in. Even a hybrid vehicle can be applied.

  The information processing server 2 is composed of a microcomputer and its peripheral devices, acquires vehicle information from the vehicle information collection device 9 via the Internet communication network 1, and stores it in the database 3. The information processing server 2 stores the received vehicle information in the database 3 every time vehicle information is received from the vehicle information collection device 9. The vehicle information includes a battery ID given to a battery mounted on the electric vehicle Cr, a vehicle usage pattern indicating the usage status of the vehicle, a vehicle status (for example, whether the vehicle is running, charged, or left). , Information that affects the deterioration of the battery, such as the outside air temperature, the charge amount, the battery temperature, the energization time, and the leaving time. The vehicle usage pattern includes travel distance, travel time, stop time, number of stops, average travel speed, average acceleration / deceleration, and the like.

  In addition, the information processing server 2 receives user designation information required for battery search including a battery search request and a battery ID of a pre-replacement battery to be replaced from the user terminal 7 via the Internet communication network 1. Is transmitted to the business operator management terminal 5, the used battery information corresponding to the used battery to be sold is acquired from the business operator management terminal 5. The used battery information includes a battery ID assigned to a used battery to be sold and a selling price.

  Then, the information processing server 2 uses a battery designated as a used battery to be sold as a replacement candidate battery, and uses vehicle information corresponding to the replacement candidate battery stored in the database 3 and vehicle information corresponding to the battery before replacement. The matching process is performed, a replacement candidate battery suitable for a user who wishes to purchase a used battery is searched from the replacement candidate batteries, and the replacement candidate battery obtained as a result of the search is returned to the user terminal 7 as an optimum battery.

The operator management terminal 5 is configured by a personal computer, for example, and includes a communication device for transmitting and receiving information to and from the information processing server 2 via the Internet communication network 1. The information processing server 2 transmits and receives information.
Further, the operator management terminal 5 manages the used battery owned by the communication service provider, and manages the used price of the used battery to be sold as the used battery information in association with the battery ID. When the used battery information transmission request is received from the information processing server 2, the used battery information is transmitted to the information processing server 2 via the Internet communication network 1.

  The user terminal 7 includes a personal computer, a mobile phone, and the like, and includes a communication device for transmitting and receiving information to and from the information processing server 2 via the Internet communication network 1. Further, the user terminal 7 transmits a battery search request to the information processing server 2 in accordance with a user instruction. In addition, the user designation information necessary for the battery search process in the information processing server 2 such as the battery ID assigned to the battery before replacement is transmitted to the information processing server 2. The user-specified information indicates the battery ID of the pre-replacement battery that is the battery to be replaced, the replacement timing with the used battery, the desired cruising distance, the desired retention period, and the upper limit indicating how long the replacement battery will be retained. Includes information such as price and minimum price. The user designation information can be set arbitrarily.

Then, as a response to the battery search request, the battery search result is received from the information processing server 2 and the received battery search result is displayed on a display device (not shown) of the user terminal 7.
The vehicle information collection device 9 is installed in each electric vehicle Cr of a user who wishes to use the service by the battery search device 100, and transmits information to and from the information processing server 2 via the Internet communication network 1 by wireless communication. A communication function for performing transmission and reception is provided.

  The vehicle information collecting device 9 includes various sensors attached to the electric vehicle Cr and a storage medium such as a USB memory for storing vehicle information detected by the various sensors and a memory card such as an SD card or an IC card. Is done. Then, the vehicle information stored in the storage medium is transmitted to the information processing server 2 via the Internet communication network 1 at a preset timing such as when the battery is charged when parked.

FIG. 2 is a functional block diagram showing a functional configuration of the information processing server 2.
The information processing server 2 includes a battery deterioration prediction device 11, a vehicle usage method analysis device 12, and a matching device 13.
When the battery deterioration prediction device 11 receives from the user terminal 7 a battery search request by a user who is considering purchasing a used battery who desires to use the battery search device 100, the battery deterioration prediction device 11 sends a used battery information transmission request to the operator. The information is transmitted to the management terminal 5 and used battery information is acquired from the operator management terminal 5. And the replacement candidate battery which is the battery designated as a sales object by the used battery information and the user of the electric vehicle Cr mounted with the battery before replacement obtained by the analysis in the vehicle usage analysis device 12 is mounted. The cruising distance of the replacement candidate battery at the specified replacement timing is predicted based on the below-described vehicle usage method of each electric vehicle user. Then, based on the predicted cruising distance of the replacement candidate battery at the replacement timing and the vehicle usage method of the user of the electric vehicle Cr on which the battery before replacement is mounted, the replacement candidate battery is replaced by the user who uses the battery before replacement. A deterioration state of a replacement candidate battery (hereinafter also referred to as a post-replacement predicted deterioration state) when the previous battery user uses is predicted.

  The vehicle usage analysis device 12 acquires vehicle information corresponding to the pre-replacement battery and the replacement candidate battery from the database 3. Then, based on the acquired vehicle information, for each of the pre-replacement battery and the replacement candidate battery, how each of these batteries has been used so far, that is, the user of the electric vehicle on which these batteries are mounted is connected to the battery. From the viewpoint of factors that affect battery deterioration, such as when the charging operation has been performed and how the electric vehicle has been used, the user who uses the electric vehicle It is analyzed whether it exists, and this is notified to the battery deterioration prediction apparatus 11 as a user's vehicle usage method. The vehicle usage method of the user includes a travel distance and frequency per trip.

  Based on the post-replacement predicted deterioration state predicted by the battery deterioration prediction device 11 and the user-specified information received from the user terminal 7, the matching device 13 considers the purchase of a used battery analyzed by the vehicle usage analysis device 12. The replacement candidate battery suitable for the user's vehicle usage method is searched. Then, the replacement candidate battery acquired as a result of the search is transmitted to the user terminal 7 as the optimum battery suitable for the battery user before replacement.

(Specific processing during battery search)
FIG. 3 is a flowchart illustrating an example of a processing procedure of battery search processing executed by the information processing server 2.
When the information processing server 2 receives the battery search request and the user designation information from the user terminal 7 at an arbitrary timing, first, the used battery information is sent to the service provider operator management terminal 5 in the process of step S1. To send used battery information. That is, the battery ID of the used battery currently on sale and its selling price are acquired.

Next, the process proceeds to step S2, and vehicle information corresponding to the pre-replacement battery designated by the user designation information and the replacement candidate battery designated by the used battery information is acquired from the database 3. And based on these vehicle information, the vehicle usage method analyzer 12 analyzes the vehicle usage method of the user of the electric vehicle in which each of these batteries is mounted.
Next, the process proceeds to step S3, where the battery replacement timing, the desired cruising distance, the desired holding period of the battery after replacement, the upper limit price, the lowest price, etc., designated by the user designation information from the user terminal 7 are matched. Set as a condition.

  Next, the process proceeds to step S4, and a minimum cruising distance is calculated as a battery condition suitable for the battery user before replacement. Specifically, based on the travel distance and frequency per trip obtained as the vehicle usage method of the battery user before replacement by the analysis by the vehicle usage analysis device 12, and the desired cruising distance specified by the user designation information Calculate the minimum cruising range that can be run without charging.

In addition, 1 trip here means that a user moves with the purpose using the electric vehicle Cr without charging the battery in the middle. For example, one trip means from leaving home to working at a company and returning to home, and for example, going from various places to shopping at various stores and returning to home.
The above-mentioned minimum required cruising distance is an average cruising distance when the user uses the electric vehicle Cr for a certain purpose, which is set based on the travel distance and frequency per trip. This minimum required cruising distance is set to a cruising distance that does not require recharging of the battery during use when the user routinely uses the electric vehicle.

  Next, the process proceeds to step S5, and all of the replacement candidate batteries that have the cruising distance at the exchange timing t1 satisfying the minimum necessary cruising distance specified in step S4 are extracted as matching target batteries. The cruising distance of the replacement candidate battery at the replacement timing t <b> 1 is predicted by the battery deterioration prediction device 11 based on the user's vehicle usage method of the replacement candidate battery analyzed by the vehicle usage method analysis device 12.

Next, the process proceeds to step S6, where it is determined whether or not matching processing described later has been performed for all matching target batteries. If matching processing has not been performed for all matching target batteries, the process proceeds to step S7.
In this step S7, a selling price is acquired from used battery information for one matching target battery that has not been subjected to matching processing. Then, based on the sales price and the upper limit price and the minimum price specified by the user designation information, it is determined whether or not the sales price satisfies the user designation information. If the sales price does not satisfy the user specified information, the process returns to step S6, and if satisfied, the process proceeds to step S8.

  In step S8, the battery deterioration prediction device 11 predicts the deterioration state of the matching target battery when the battery user before replacement uses the matching target battery. That is, based on the vehicle usage method corresponding to the pre-replacement battery and the matching target battery analyzed by the vehicle usage analysis device 12, and the cruising distance of the matching target battery at the replacement timing, the matching target battery is replaced with the pre-replacement battery. The deterioration state of the matching target battery when the user uses it is predicted. Specifically, the cruising range change state is predicted as the deterioration state.

Next, the process proceeds to step S9, and the cruising distance of the matching target battery reaches the minimum cruising distance required by the battery user before replacement calculated in step S4 based on the predicted change state of the cruising distance of the matching target battery. A time point is specified, and based on this time point, it is determined whether a desired holding period condition specified by the user-specified information is satisfied. Specifically, it is determined whether or not the cruising distance of the battery to be matched reaches the “minimum cruising distance” after the “desired holding period” has elapsed from the replacement timing.
If the holding period condition is not satisfied, the process returns to step S6. If the holding period condition is satisfied, the process proceeds to step S10.

  In this step S10, the selling price of the matching target battery is compared with the selling price of the battery stored in a predetermined storage area as the optimum battery candidate described later. If the selling price of the matching target battery is higher than the selling price of the optimum battery candidate, the process directly returns to step S6. Conversely, when the selling price of the matching target battery is lower than the selling price of the optimum battery candidate, the matching target battery is newly updated and stored as the optimum battery candidate, and the process returns to step S6. If the selling price of the optimum battery candidate and the selling price of the matching target battery are the same, a new matching target battery may be stored as the optimum battery candidate.

  If matching is performed for all matching target batteries in the process of step S6, the process proceeds to step S12, and the battery stored as the optimum battery candidate at this time is notified to the user terminal 7 as the optimum battery. . At this time, the usable period predicted by the battery deterioration prediction device 11 when the battery user before replacement uses the optimum battery, that is, the cruising distance of the battery to be matched after replacement is “minimum required cruising distance. It may also be configured to present to the user terminal 7 the required period until it reaches “”.

(Operation)
Next, the operation of this embodiment will be described with reference to FIG.
Each user's electric vehicle Cr using the battery search device 100 is equipped with a vehicle information collecting device 9, and in the vehicle information collecting device 9 mounted on each electric vehicle Cr, to the user's battery of the electric vehicle Cr. Deterioration of the battery such as the timing of the charging operation, vehicle usage pattern, vehicle status (for example, whether it is running, charging, or neglected), outside temperature, charge amount, battery temperature, energization time, neglected time, etc. Vehicle information including information that affects the vehicle is collected. The vehicle information collection device 9 transmits the collected vehicle information to the information processing server 2 via the Internet communication network 1 by wireless communication at a predetermined timing. Thereby, the vehicle information of each electric vehicle Cr is sequentially stored in the database 3. As a result, by referring to the vehicle information stored in the database 3, it is possible to recognize the driving operation characteristics and the charging operation characteristics of the user who uses each electric vehicle Cr and to install the battery mounted on each electric vehicle Cr. It is possible to predict the deterioration state of the.

From this state, it is considered that an arbitrary user feels that the battery has deteriorated in consideration of the usage method of the electric vehicle Cr and searches for a used battery.
In this case, as a daily usage method of the electric vehicle Cr of the user, it is assumed that a cruising distance of at least 100 [km] is required by a single charging operation to the battery.
The user first operates the user terminal 7 and transmits a battery search request to the battery search device 100. Along with this, the battery ID of the battery before replacement, the replacement timing, the desired cruising distance, the desired holding period of the battery after replacement, the upper limit price, the minimum price, etc. are set. These are transmitted to the battery search device 100 as user designation information.

When the information processing server 2 receives the battery search request from the user terminal 7, the information processing server 2 transmits a used battery information transmission request to the operator management terminal 5, and the battery ID of the used battery to be sold from the operator management terminal 5 and Used battery information including the selling price is acquired (step S1 in FIG. 3).
Based on the used battery information, vehicle information corresponding to the replacement candidate battery is extracted from the database 3, and vehicle information corresponding to the pre-replacement battery is extracted based on the user-specified information. The user's vehicle usage method is analyzed (step S2). Further, based on the vehicle information corresponding to the pre-replacement battery, the travel distance and frequency per trip are detected, and based on this, the minimum cruising distance necessary for the pre-replacement battery user is calculated (step S4). In this case, it is calculated as 100 [km].

Then, from among the replacement candidate batteries, a battery whose cruising distance at the exchange timing t1 is longer than the cruising distance required by the user corresponding to the battery before replacement is extracted as a matching target battery (step S5).
Here, for example, as shown in FIG. 4, it is assumed that used batteries A and B are extracted as matching target batteries.

In FIG. 4, the horizontal axis represents elapsed time, and the vertical axis represents cruising distance. A characteristic line L1 represents a deterioration curve of the battery X before replacement. Characteristic line L2a represents a deterioration curve of used battery A, which is a replacement candidate battery, before replacement. Characteristic line L2b represents a deterioration curve of used battery B, which is a replacement candidate battery, before replacement.
Here, the calculation formula representing the characteristic line L1 of the battery X before replacement can be predicted from the vehicle information of the battery X before replacement.

  Similarly, the calculation formula representing the characteristic line L2a of the used battery A and the calculation formula representing the characteristic line L2b of the used battery B can be predicted from the vehicle information of the used battery A and the vehicle information of the used battery B, respectively. If the calculation formulas of these characteristic lines L2a and L2b can be obtained, the cruising distances of the used batteries A and B at the replacement timing t1 designated by the user designation information can be predicted.

  Therefore, first, a calculation formula representing the characteristic lines L2a and L2b of the used batteries A and B is calculated. Based on this calculation formula, the cruising distances of the used batteries A and B at the replacement timing t1 are predicted. In the case of FIG. 4, the used battery A is predicted to be about 140 [km], and the used battery B is predicted to be about 135 [km].

Since the cruising distances of the used batteries A and B at the exchange timing t1 are larger than the aforementioned minimum cruising distance 100 [km] for the battery user before the exchange, they satisfy the cruising distance condition.
If both the selling prices of the used batteries A and B notified as used battery information from the operator management terminal 5 satisfy the minimum price and the upper limit price of the user specified by the user-specified information (step) S7), lifetimes are estimated for used batteries A and B (step S8).

  Here, the characteristic line L1 is a characteristic line reflecting the user's usage of the vehicle. When the pre-replacement battery X and the used battery A are replaced at the replacement timing t1, it is predicted that the used battery A after the replacement will deteriorate with the same degree of change as the characteristic line L1. Therefore, the deterioration curve of the used battery A after the replacement at the replacement timing t1 can be represented by a characteristic line L3a that changes with the same degree of change as the characteristic line L1. Similarly, when the pre-replacement battery X and the used battery B are replaced at the replacement timing t1, it is predicted that the used battery B after the replacement will deteriorate with the same degree of change as the characteristic line L1. Therefore, the deterioration curve of the used battery B after replacement at the replacement timing t1 can be represented by a characteristic line L3b that changes with the same degree of change as the characteristic line L1.

That is, from the calculation formulas representing the characteristic line L3a and the characteristic line L3b, the period until the cruising distance of the used batteries A and B after the battery replacement becomes the minimum cruising distance 100 [km] can be calculated. .
Therefore, first, a calculation formula representing the characteristic line L1 is calculated. This calculation formula can be calculated from the vehicle information of the battery X before replacement. Based on the calculation formula representing the characteristic line L1, a calculation formula having the same change characteristic as the calculation formula and passing through the cruising distance of the used battery A at the replacement timing t1 is calculated. It is set as the calculation formula showing. Similarly, based on the calculation formula representing the characteristic line L1, a calculation formula having the same change characteristic as this calculation formula and passing through the cruising distance of the used battery B at the replacement timing t1 is calculated, and this is calculated as the characteristic line L3b. It is set as the calculation formula showing.

Then, using the calculation formula representing the characteristic line L3a and the calculation formula representing the characteristic line L3b, the period until the cruising distance of the used batteries A and B after battery replacement becomes the minimum required cruising distance 100 [km] Calculate.
Then, when the calculated period is longer than the desired retention period (for example, 3 years: t2 in FIG. 4) of the battery after replacement specified by the user, it is determined that the condition of the retention period of the user is satisfied.

  In the case of FIG. 4, the used battery A reaches the minimum required cruising distance 100 [km] at the time t <b> 2, and thus satisfies the conditions of the user's holding period, but the used battery B requires the minimum required cruising distance 100. Since the timing to reach [km] is earlier than time t2, the holding period condition specified by the user is not satisfied. For this reason, the used battery B is not an optimal battery candidate, the used battery A is stored as an optimal battery candidate, and there is no other optimal battery candidate, so that the used battery A finally becomes an optimal battery.

  As described above, the battery search device 100 predicts the cruising distance of the replacement candidate battery at the replacement timing from the vehicle information indicating the vehicle usage history of the replacement candidate battery, and replaces the battery based on the vehicle usage method of the battery user before replacement. The change in the cruising distance of the replacement candidate battery is predicted later. For this reason, it is possible to select an optimal replacement battery in accordance with the desire of the battery user before replacement.

  At this time, based on the past vehicle information of the battery user before replacement, a deterioration curve when the user uses the battery is obtained, and the cruising distance of the replacement candidate battery after replacement is predicted using the deterioration curve. doing. Here, the degree of battery deterioration is also greatly dependent on the usage status of the battery by the user, such as the usage environment and the remaining battery capacity when performing a charging operation on the battery. Therefore, not only the deterioration of the battery due to the battery characteristics of the replacement candidate battery itself but also the deterioration of the battery due to the usage method of the user's battery is taken into account, and the cruising distance is predicted to predict more accurately. be able to. Therefore, an optimal replacement battery can be selected more accurately.

Here, in the above embodiment, the processing for calculating the calculation formulas representing the characteristic lines L1, L2a, and L2b in Step S5 and Step S8 in FIG. 3 corresponds to the deterioration characteristic information acquisition unit, and in Step S8, the characteristic line The process of calculating the calculation formulas representing L3a and L3b corresponds to the deterioration state prediction unit.
Further, the process of step S3 in FIG. 3 corresponds to the condition setting unit, the processes of steps S7 to S10 correspond to the determination unit, and the process of step S11 corresponds to the extraction unit.
Further, the vehicle information collection device 9 and the database 3 correspond to the vehicle information collection unit, and the process of step S4 in FIG. 3 corresponds to the necessary cruising distance detection unit.

(Effect of embodiment)
(1) Thus, the calculation formulas representing the characteristic lines L1, L2a, and L2b are calculated based on the vehicle information of the pre-replacement battery and the replacement candidate battery, and the calculation formulas representing the characteristic lines L3a and L3b are calculated based on the calculation formulas. Then, based on the characteristic lines L3a and L3b, the deterioration state of the replacement candidate battery is predicted, and based on the predicted deterioration state, it is determined whether or not the replacement candidate battery is the optimum battery. Thus, the deterioration state of the replacement candidate battery can be predicted, that is, the optimum battery can be selected more accurately.

(2) Also, as the user-specified information, a desired cruising distance representing the distance that can be reached by one charge and a desired holding period of the battery after replacement are set, so that the cruising distance desired by the user is satisfied. In addition, it is possible to easily search for an optimum battery that satisfies a desired holding period.
Further, since the price condition is set as the user-specified information, it is possible to easily search for an optimum battery that satisfies not only the holding period but also the price.

(3) The vehicle information collection device 9 is mounted on each electric vehicle Cr, and the vehicle information collection device 9 automatically collects vehicle information and further automatically stores it in the database 3 of the battery search device 100. Therefore, vehicle information can be reliably collected, and a more accurate vehicle usage method can be obtained as a user vehicle usage method corresponding to the pre-replacement battery and the replacement candidate battery.
Further, since the driving operation history that affects the deterioration of the battery and the charging operation history to the battery are collected as the vehicle information, more accurate deterioration characteristics can be obtained by using this vehicle information.

(4) In addition, the calculation formulas representing the pre-replacement battery and the deterioration curve of the replacement battery are calculated, and based on this, the deterioration state of the pre-replacement battery and the replacement battery is predicted, so the deterioration state is predicted easily and accurately. Can do.
(5) Further, based on the vehicle information corresponding to the battery before replacement, based on the travel distance per trip of the user of the electric vehicle Cr in which the battery before replacement is mounted, the minimum cruising distance necessary for the battery user before replacement Since a used battery satisfying this is extracted as a matching target battery, it is possible to easily select a used battery that does not hinder a trip normally performed by a battery user before replacement.
(6) Further, the cruising distance is used as a parameter representing the deterioration characteristics of the pre-replacement battery and the replacement candidate battery, and the cruising distance becomes shorter as the deterioration progresses. Therefore, by referring to the change state of the cruising distance, The degree of deterioration can be grasped relatively easily.

(Modification)
In the above embodiment, the case where the battery search service is provided to the user using the user terminal 7 has been described. However, the present invention is not limited to this. For example, a service provider can receive a battery search service by transmitting a battery search request using an information processing terminal held by a service provider that sells used batteries. In this way, the service provider can effectively recommend a used battery suitable for the user by acquiring the optimum battery for the user who has purchased the used battery.

  Moreover, although the said embodiment demonstrated the case where the cruising distance in the replacement timing t1 was calculated from the calculation formula showing the characteristic lines L2a and L2b obtained from vehicle information about used battery A and used battery B which are replacement candidate batteries. It is not always necessary to obtain from the calculation formula. For example, the cruising distance in the vicinity of the exchange timing t1 may be predicted from the vehicle information, and this may be used as the cruising distance at the exchange timing t1.

  In addition, since it is only necessary to obtain the degree of deterioration of the replacement candidate battery at the replacement timing t1, it is not always necessary to calculate the cruising distance at the replacement timing t1 from the calculation formula. For example, the degree of deterioration of the replacement candidate battery may be indicated as a deterioration coefficient of “10-0”. In this case, “10” represents a state in which the deterioration coefficient is not deteriorated at all, and “0” represents a state in which deterioration is severe.

  In addition, since it is only necessary to obtain the degree of deterioration of the replacement candidate battery, it is not always necessary to use the cruising distance as a parameter representing the degree of deterioration. For example, since the maximum charge amount of the battery changes according to the degree of deterioration of the battery, the optimum battery may be selected using the maximum charge amount as a parameter as the degree of battery deterioration. In addition, a deterioration coefficient that represents a comprehensive deterioration degree may be set using a plurality of parameters, and an optimum battery may be selected based on the deterioration coefficient. In short, a parameter that can express the deterioration degree of the battery is used. If applicable, it can be applied.

  In the above embodiment, the calculation formulas of the characteristic lines L3a and L3b representing the deterioration curves of the used batteries A and B after replacement are the same as the calculation formulas representing the characteristic line L1 according to the vehicle usage method of the battery user before replacement. However, the present invention is not limited to this, but the calculation formula that passes through the cruising distance specified as the cruising distance at the replacement timing t1 has been described. For example, a calculation formula having an average change characteristic of a change characteristic of the calculation formula representing the characteristic line L1 and a change characteristic of the calculation formula representing the characteristic line L2a is set as the calculation formula of the characteristic line L3a. Similarly, a calculation formula having an average change characteristic of a change characteristic of the calculation formula representing the characteristic line L2 and a change characteristic of the calculation formula representing the characteristic line L2b is defined as a calculation formula of the characteristic line L3b.

  The characteristic lines L3a and L3b obtained in this way take into account the change characteristics of the cruising distance according to the vehicle user's usage of the battery before replacement and the change characteristics of the cruising distance of the used batteries A and B before replacement. Therefore, it is possible to easily obtain a calculation formula corresponding to the change characteristics of the cruising distances of the battery user before replacement and the used batteries A and B.

  Moreover, although the said embodiment demonstrated the case where vehicle information was directly transmitted with respect to the information processing server 2 from the vehicle information collection apparatus 9 mounted in the electric vehicle Cr, it does not restrict to this. For example, the vehicle information for a certain period is stored in a storage medium included in the vehicle information collection device 9. The predetermined period is set to a period that can detect the vehicle driving characteristics of the user with a certain degree of accuracy based on the vehicle information, and is configured to store the latest vehicle information.

Then, when the service provider collects the used battery and sells this used battery for sale, it obtains the latest vehicle information for a certain period from the storage medium included in the vehicle information collecting device 9, May be transmitted to the information processing server 2 and stored in the database 3 via the information processing server 2.
Moreover, although the said embodiment demonstrated the case where one of the replacement candidate batteries which satisfy the conditions designated by user designation information was selected as an optimal battery candidate, it is not restricted to this.

  In the above embodiment, the case has been described in which the replacement candidate battery with the lowest selling price is selected as the optimum battery among the replacement candidate batteries that satisfy the conditions specified by the user specification information. is not. For example, the replacement candidate battery having the longest usable period of the replacement candidate battery after replacement among all replacement candidate batteries satisfying the conditions specified by the user specification information may be extracted as the optimum battery. The usable period of the replacement candidate battery is determined from the replacement timing based on the time when the cruising distance of the matching target battery calculated in the process of step S9 reaches the minimum cruising distance required by the battery user before replacement. What is necessary is just to predict the required period until the cruising distance of the target battery reaches the “minimum required cruising distance”, and to use it as the usable period of the matching target battery, that is, the replacement candidate battery.

Further, for example, all replacement candidate batteries that satisfy the conditions specified by the user specification information may be selected and presented to the user terminal 7 as batteries applicable as replacement batteries.
Furthermore, a battery that does not satisfy the conditions specified by the user-specified information but is close to it may be displayed. In this case, if the price specified as the condition specified by the user-specified information does not satisfy the price, it is possible to improve the usability because the user has more choices if the price is shown. it can.
The information processing server 2 analyzes the vehicle usage method of the battery user before replacement based on the vehicle information of the battery before replacement. Further, as described above, the deterioration of the battery also proceeds depending on how the user uses the battery.

Therefore, for example, based on the analysis result of the vehicle usage method of the battery user before replacement, the vehicle usage method of the battery user before replacement may be evaluated and transmitted to the user terminal 7. For example, it is a usage method that has a large influence on the deterioration of the battery and promotes the deterioration of the battery, or a usage method that is suitable for a battery that does not promote the deterioration of the battery. What is necessary is just to comprise the evaluation part which evaluates and to transmit the evaluation result by this evaluation part to the user terminal 7.
In this way, the battery user before replacement can easily recognize whether or not his / her vehicle usage method is a usage method that promotes deterioration of the battery. By doing so, it is possible to make the battery last longer, which is effective.

DESCRIPTION OF SYMBOLS 1 Internet network 2 Information processing server 3 Database 5 Operator management terminal 7 Information processing terminal (user terminal)
9 Vehicle information collection device 11 Battery deterioration prediction device 12 Vehicle usage analysis device 13 Matching device

Claims (9)

A deterioration characteristic information acquisition unit that acquires deterioration characteristic information representing respective deterioration characteristics of the battery before replacement of the electric vehicle and the replacement candidate battery that is another battery that is a replacement candidate of the battery before replacement;
A deterioration state prediction unit that predicts a deterioration state of the replacement candidate battery after replacing the pre-replacement battery with the replacement candidate battery based on the deterioration characteristic information acquired by the deterioration characteristic information acquisition unit. A battery search device. A condition setting unit for setting conditions necessary for the replacement battery to be replaced with the pre-replacement battery;
A determination unit that determines that the replacement candidate battery satisfies a condition set by the condition setting unit based on the deterioration state of the replacement candidate battery predicted by the deterioration state prediction unit;
The battery search device according to claim 1, further comprising: an extraction unit that extracts, as the replacement battery, the replacement candidate battery that is determined to satisfy the condition by the determination unit.   3. The battery search apparatus according to claim 2, wherein the conditions necessary for the replacement battery include a desired cruising distance and a desired holding period of the battery after replacement. The replacement candidate battery is a used battery owned by a service provider that sells used batteries,
4. The battery search device according to claim 3, wherein the condition necessary for the replacement battery further includes a desired purchase price of the replacement battery. The vehicle operation information and the charging operation history of the battery in each of the electric vehicle in which the pre-replacement battery is mounted and the other candidate electric vehicle in which the replacement candidate battery is mounted or in which the replacement candidate battery is mounted are used as vehicle information. A vehicle information collecting unit for collecting the vehicle information;
The deterioration characteristic information acquisition unit acquires deterioration characteristic information representing deterioration characteristics of the pre-replacement battery and the replacement candidate battery based on vehicle information collected by the vehicle information collection unit. The battery search device according to claim 1.   6. The deterioration characteristic information acquisition unit acquires deterioration curves of the pre-replacement battery and the replacement candidate battery as the deterioration characteristic information based on the vehicle information collected by the vehicle information collection unit. The battery search device described. The deterioration characteristic information acquisition unit represents a change state of a cruising distance of the electric vehicle on which the battery before replacement is mounted and another electric vehicle on which the replacement candidate battery is mounted or on which the replacement candidate battery is mounted. A deterioration curve is acquired as the deterioration characteristic information,
The deterioration state prediction unit uses a deterioration curve representing a change state of a cruising distance of the electric vehicle on which the replacement candidate battery is mounted after the replacement battery is replaced with the replacement candidate battery. The battery search device according to claim 6, wherein the deterioration state of the candidate battery is predicted. The deterioration characteristic information acquisition unit detects a travel distance per trip in the electric vehicle on which the battery before replacement is mounted based on the vehicle information collected by the vehicle information collection unit, and based on the detection result, A necessary cruising distance detector for detecting a necessary cruising distance required as the replacement battery,
The extraction unit determines that the cruising distance of the replacement candidate battery is greater than or equal to the required cruising distance based on the deterioration state of the replacement candidate battery predicted by the deterioration state prediction unit, and in the determination unit, 8. The battery search device according to claim 5, wherein the replacement candidate battery that is determined to satisfy the condition set by the condition setting unit is extracted as the replacement battery. 9. Obtaining deterioration characteristic information representing respective deterioration characteristics of the pre-replacement battery of the electric vehicle and the replacement candidate battery that is another battery that is a replacement candidate for the pre-replacement battery;
Predicting a deterioration state of the replacement candidate battery after replacing the replacement battery with the replacement candidate battery based on the acquired deterioration characteristic information;
And searching for the replacement battery based on the predicted deterioration state of the replacement candidate battery after the replacement.

Images