JP5758225B2 - Battery unit device - Google Patents

Description

  The present invention relates to a battery unit device, and more particularly to a battery unit device that can supply power only when authentication is permitted for each battery unit in a battery unit constituted by a plurality of battery units.

  Conventionally, batteries have played an important role in internal combustion engines such as automobiles and motorcycles. In addition, hybrid vehicles are now widely used, and further, electric vehicles that run only on electricity have been put into practical use.

  Thus, as the importance of electricity increases in automobiles, such as hybrid automobiles and electric cars, the performance of the automobile depends on the performance of the battery.

  On the other hand, in order to reduce the price of the battery due to the mass production effect, a method of securing a desired output amount by manufacturing a cell battery having a predetermined standard and combining a plurality of cell batteries is used. Yes. Thus, by predefining the standard of the cell battery to be used, the mass production effect of the cell battery is enhanced and the replacement of the cell battery is facilitated. For example, a method has been devised in which a cell battery is converted into a cassette and is replaced with a fully charged cell battery at an energy supply station when the remaining battery capacity of the cell battery of an electric vehicle decreases (for example, Patent Document 1). reference).

  As described above, when the battery is composed of a plurality of cell batteries (battery units), it is possible to manufacture, sell, and replace the battery for each cell battery, and it is possible to improve the convenience of the battery. .

Japanese Patent Laid-Open No. 2001-57711

  By the way, as already explained, when the importance of electricity in an automobile increases, the performance of the automobile or the like depends on the performance of the battery. For this reason, in a car using a high-performance battery, the cell battery may be stolen or may be replaced by a third party without permission without being noticed.

  In order to prevent these thefts and replacement, it is conceivable that the battery is firmly fixed to the vehicle so that the battery is not easily attached / detached. Cannot be removed, and convenience may be impaired.

  The present invention has been made in view of the above problems, and an object of the present invention is to provide a battery unit device in which it is difficult for the battery to be stolen or the like in a state where battery replacement or the like is facilitated.

  In order to solve the above-described problem, the battery unit device according to the present invention includes a first battery unit and first authentication information used for determining whether or not to allow power supply by the first battery unit. A master battery unit comprising: a recording unit; and a master control unit that determines whether or not to permit the power supply by the first battery unit and controls the power supply by the first battery unit; And a second recording means for recording second authentication information used for determining whether or not to allow power supply by the second battery means, and obtaining a power supply command from the master control means. A slave battery unit comprising slave control means for enabling the power supply by the second battery means; and the first battery. And authentication information acquisition means for reading third authentication information recorded on the recording medium from a recording medium owned by a user who desires the power supply by the second battery means, and the master control means , Acquiring the third authentication information from the authentication information acquiring means, determining whether the third authentication information matches the first authentication information recorded in the first recording means, and The third authentication information is output to the slave control unit, the slave control unit acquires the third authentication information from the master control unit, and the third authentication information is recorded in the second recording unit. A determination is made as to whether or not the second authentication information matches, and the determination result is output to the master control means. The master control means matches the third authentication information with the first authentication information. Only when it is determined that the third authentication information matches the second authentication information based on the determination result obtained from the slave control means, the master control means The power supply by the battery means is recognized, the power supply by the first battery means is started, and the power supply command is output to the slave control means.

  In the battery unit device according to the present invention, it is determined by the master control means that the third authentication information and the first authentication information match, and the third authentication information and the second authentication are based on the determination result obtained from the slave control means. Only when it is determined that the information matches, the master control means recognizes the power supply by the first battery means, starts the power supply by the first battery means, and outputs a power supply command to the slave control means. . Therefore, if the first authentication information and the third authentication information, and the second authentication information and the third authentication information do not match, power supply from the battery means is not performed.

  For this reason, for example, even if a third party steals the master battery unit or slave battery unit and installs it in his / her vehicle, the authentication information does not match, so the master battery unit or slave battery unit stolen is used. It becomes impossible to supply power.

  Further, even if the master battery unit or the slave battery unit is replaced with a bad battery unit by a third party, the authentication information (first authentication information or second authentication information) of the replaced battery unit is the authentication information acquisition means. Therefore, the power is not supplied because it differs from the third authentication information read from the user's recording medium. For this reason, the user can easily know that the battery unit is not a regular battery unit.

  Furthermore, the power supply determination processing for all battery units (master battery unit and slave battery unit) is performed by the master control means, and the slave control means performs power supply processing according to the power supply command from the master control means. Yes. For this reason, if one master battery unit is installed, a plurality of slave battery units can be installed, and even if a plurality of slave battery units are installed, the master control means of one master battery unit Thus, it is possible to perform the determination process of the entire power supply. Therefore, the number of battery units can be flexibly increased and decreased, and the versatility and mass productivity of the slave battery units can be improved.

  Moreover, since the determination process of the whole power supply is performed by the master control means of the master battery unit, it is not necessary to separately install a processing unit necessary for the authentication process on the vehicle side. For this reason, the battery unit device according to the present invention can be easily additionally installed even in an existing vehicle.

  Further, since the authentication process is performed not on the vehicle side but on the battery unit device side, the processing content of the authentication process is black boxed on the vehicle side. For this reason, even if it is necessary to replace a new battery unit device in which the processing content of the authentication processing has been changed with a battery unit device having an old processing content, the processing content in the battery unit device on the vehicle side It is possible to use the battery unit device without being influenced by the change.

  Further, even if the battery means (first battery means or second battery means) of the master battery unit or slave battery unit is deteriorated, all battery units (master battery unit and slave battery unit) are replaced at once. Since it is not necessary and only the deteriorated battery unit can be replaced, it is possible to replace the battery unit flexibly and individually in accordance with the performance deterioration of the battery means.

  Furthermore, since the master battery unit and the slave battery unit have the same basic configuration (configuration of battery means, recording means, control means, etc.), it is possible to increase the mass productivity of the battery unit.

  Further, the battery unit device according to the present invention obtains a power supply command, a battery means, a second recording means for recording second authentication information used for determining whether or not to allow power supply by the battery means, and A slave battery unit including a slave control unit that enables the power supply by the battery unit, and first authentication information used to determine whether or not the power supply by the battery unit is permitted. And a recording medium owned by a user who desires the power supply by the battery means, and a first control means for determining whether or not to allow the power supply by the battery means. And authentication information acquisition means for reading the third authentication information recorded on the recording medium, and the master The control means acquires the third authentication information from the authentication information acquisition means, and determines whether or not the third authentication information matches the first authentication information recorded in the first recording means. At the same time, the third authentication information is output to the slave control means, and the slave control means acquires the third authentication information from the master control means, and the third authentication information is recorded in the second recording means. A determination result is output to the master control means, and the master control means determines that the third authentication information and the first authentication information match. And only when it is determined that the third authentication information and the second authentication information match based on the determination result obtained from the slave control unit, the master control unit It recognized the power supply by stage and outputs the power supply command to the slave control unit.

  Further, the battery unit device according to the present invention acquires battery means, recording means for recording battery authentication information used for determining whether or not to allow power supply by the battery means, and a power supply command. A slave battery unit including a slave control unit that enables the power supply by the battery unit, and an authentication determination unit including a master control unit that determines whether to allow the power supply by the battery unit; Authentication information acquisition means for reading authentication information for a recording medium recorded on the recording medium from a recording medium owned by a user who desires the power supply by the battery means, and the master control means comprises the authentication Obtaining the recording medium authentication information from the information obtaining means and outputting it to the slave control means, The slave control means acquires the recording medium authentication information from the master control means, and determines whether or not the recording medium authentication information matches the battery authentication information recorded in the recording means. The determination result is output to the master control unit, and the master control unit is determined to match the authentication information for the recording medium and the authentication information for the battery based on the determination result acquired from the slave control unit. Only in this case, the power supply by the battery unit is recognized and the power supply command is output to the slave control unit.

  In the battery unit device according to the present invention, authentication judgment means is provided instead of the master battery unit. Since the authentication judging means is not provided with the battery means, the authentication judging means does not perform power supply control of the battery means provided in the master battery unit like the master battery unit, and the battery means provided in the slave battery. Only the power supply control can be performed. For this reason, it is possible to simplify the process in the master control unit of the authentication determination unit as compared with the master battery unit. Further, since the authentication judging means is not provided with the battery means, it is easy to simplify the configuration.

  Further, without providing the recording means in the authentication determination means, the authentication information (recording medium authentication information) acquired from the authentication information acquisition means is directly output to the slave control means of the slave battery unit, and the authentication determination result in the slave control means By adopting a configuration that controls power supply based on the above, it is possible to further simplify the processing and configuration of the authentication determination unit.

  In the battery unit device according to the present invention, it is determined by the master control means that the third authentication information and the first authentication information match, and the third authentication information and the second authentication are based on the determination result obtained from the slave control means. Only when it is determined that the information matches, the master control means recognizes the power supply by the first battery means, starts the power supply by the first battery means, and outputs a power supply command to the slave control means. . Therefore, if the first authentication information and the third authentication information, and the second authentication information and the third authentication information do not match, power supply from the battery means is not performed.

  For this reason, for example, even if a third party steals the master battery unit or slave battery unit and installs it in his / her vehicle, the authentication information does not match, so the master battery unit or slave battery unit stolen is used. It becomes impossible to supply power.

  Further, even if the master battery unit or the slave battery unit is replaced with a bad battery unit by a third party, the authentication information (first authentication information or second authentication information) of the replaced battery unit is the authentication information acquisition means. Therefore, the power is not supplied because it differs from the third authentication information read from the user's recording medium. For this reason, the user can easily know that the battery unit is not a regular battery unit.

  Furthermore, the power supply determination processing for all battery units (master battery unit and slave battery unit) is performed by the master control means, and the slave control means performs power supply processing according to the power supply command from the master control means. Yes. For this reason, if one master battery unit is installed, a plurality of slave battery units can be installed, and even if a plurality of slave battery units are installed, the master control means of one master battery unit Thus, it is possible to perform the determination process of the entire power supply. Therefore, the number of battery units can be flexibly increased and decreased, and the versatility and mass productivity of the slave battery units can be improved.

  Moreover, since the determination process of the whole power supply is performed by the master control means of the master battery unit, it is not necessary to separately install a processing unit necessary for the authentication process on the vehicle side. For this reason, the battery unit device according to the present invention can be easily additionally installed even in an existing vehicle.

  Further, since the authentication process is performed not on the vehicle side but on the battery unit device side, the processing content of the authentication process is black boxed on the vehicle side. For this reason, even if it is necessary to replace a new battery unit device in which the processing content of the authentication processing has been changed with a battery unit device having an old processing content, the processing content in the battery unit device on the vehicle side It is possible to use the battery unit device without being influenced by the change.

  Further, even if the battery means (first battery means or second battery means) of the master battery unit or slave battery unit is deteriorated, all battery units (master battery unit and slave battery unit) are replaced at once. Since it is not necessary and only the deteriorated battery unit can be replaced, the battery unit can be replaced flexibly and individually in accordance with the performance deterioration of the battery means.

  Furthermore, since the master battery unit and the slave battery unit have the same basic configuration (configuration of battery means, recording means, control means, etc.), it is possible to increase the mass productivity of the battery unit.

1 is a block diagram showing a schematic configuration of a battery unit device according to Embodiment 1. FIG. 2 is a block diagram showing a schematic configuration of a master cell battery and a slave cell battery according to Embodiment 1. FIG. 3 is a flowchart illustrating processing contents of a master control unit according to the first embodiment. 3 is a flowchart illustrating processing contents of a slave control unit according to the first embodiment. 6 is a block diagram showing a schematic configuration of a battery unit device according to Embodiment 2. FIG. It is the block diagram which showed schematic structure of the authentication apparatus which concerns on Embodiment 2, and a slave cell battery. 10 is a flowchart showing processing contents of the authentication device according to the second embodiment.

  Hereinafter, an example of a battery unit device according to the present invention will be described in detail with reference to the accompanying drawings.

[Embodiment 1]
FIG. 1 is a block diagram showing a schematic configuration of the battery unit device according to the first embodiment. As shown in FIG. 1, the battery unit device 1 includes a card reader unit (authentication information acquisition means) 10 and a battery box unit 20. The battery unit device 1 is installed in a vehicle. The battery box unit 20 is installed, for example, inside the hood, and the card reader unit 10 can insert and remove the authentication card (recording medium owned by the user who desires power supply by the battery means) 10a from, for example, the driver's seat in the passenger compartment. Installed in an easy position.

  The card reader unit 10 can read card information (third authentication information, recording medium authentication information) recorded on the authentication card 10a. The user of the vehicle or the owner of the vehicle (a user who desires to supply power by the battery means) carries the authentication card 10a in which his / her user information is recorded. The card reader unit 10 performs processing for reading the card information by the card reader unit 10. Then, as will be described later, after the authentication of each cell battery in the battery box unit 20 is recognized based on the card information, the battery box unit 20 can supply electricity (hereinafter referred to as power supply), and the engine. Is ready to start.

  Even when the card reader unit 10 reads card information from the authentication card 10a, it is necessary to supply power. For this reason, before authentication of card information by the authentication card 10a, for example, 5V power supply is performed in order to perform minimum power supply in the vehicle, and when card authentication is approved, 1500V power is supplied. The power supply is performed. The switching of power supply and the like will be described later.

  Further, the card information used in the first embodiment is generally intended to identify and authenticate a vehicle owner or a person who is permitted to use the vehicle.

  The card reader unit 10 and the battery box unit 20 are connected by a communication cable 11, and card information read from the authentication card 10 a by the card reader unit 10 is transmitted to the battery box unit 20 through the communication cable 11. .

The battery box part 20 is comprised by the several cell battery prescribed | regulated to the same standard shape. Specifically, among the plurality of cell batteries, one battery functions as the master cell battery (master battery unit) 21 and the other plurality of batteries function as slave cell batteries (slave battery units) 3 _{1 to} 3 _n. To do.

A communication cable 11 is connected to the master cell battery 21. The master cell battery 21 has a role of acquiring card information from the card reader unit 10 and performing an authentication process as to whether or not the card information is appropriate information. The master cell battery 21 and each of the slave cell batteries 3 _{1 to} 3 _n are connected so that authentication data can be transmitted and received. Each of the slave cell batteries 3 _{1 to} 3 _n supplies power for driving the motor when acquiring the control information (power supply command) for setting the drive power supply control unit acquired from the master cell battery 21 to ON. Start.

Figure 2 is a block diagram illustrating a schematic configuration of a master cell battery 21 and the slave cell battery 3 _1. 2 shows, for convenience of explanation, but shows only one slave cell battery 3 _1, in fact, are respectively connected to the plurality of slave cell battery 3 ₁ to 3 _n is a master cell battery 21, the master It is possible to transmit card information and return an authentication result between the cell battery 21 and the slave cell batteries 3 _{1 to} 3 _n .

The master cell battery 21 includes a communication unit 22, an E2PROM (first recording unit) 23, a drive power source control unit (master control unit) 24, a system power source control unit (master control unit) 25, and a battery unit ( A first battery means) and a master control section (master control means) 27; Similarly, the slave cell battery _{3 1,} a communication unit 42, E2PROM unit (second recording unit) 43, a driving power source control section (slave control section) 44, a system power supply controller (slave controller) 45, a battery unit (second battery unit) 46, and a slave control unit (slave control unit) 47. As shown in FIG. 2, the basic hardware configuration of the master cell battery 21 and the slave cell battery 3 ₁ and is obtained by common.

The communication unit 22 of the master cell battery 21 has a role of performing card information reception processing with the card reader unit 10 via the communication cable 11. Further, the communication unit 22 has a role of transmitting / receiving information (transmitting card information or authentication OK information and returning an authentication result (judgment result)) with the other slave cell batteries 3 _{1 to} 3 _n. Yes. Meanwhile, the communication unit 42 of the slave cell battery 3 _1, with the communication unit 22 of the master cell battery 21, transmit and receive information (card information and authentication OK information transmission and authentication result (response determination result)) and Have a role to do.

  The communication unit 22 and the communication unit 42 are configured by a general communication device, for example, a network interface card. In addition, it is not a general network interface card, but also a communication device specialized for CAN (Controller Area Network), which is generally used as an information / control transmission network for various electronic devices mounted on automobiles. Good.

  The E2PROM 23 and the E2PROM 43 are ROMs that can electrically erase and rewrite program contents, and are known as abbreviations for Electrically Erasable Programmable ROM. The E2PROM 23 and the E2PROM 43 record legitimate card information (first authentication information, second authentication information) that is referred to when the card information authentication determination is made. The E2PROM 23 stores a processing program (a program defining the processing shown in FIG. 3 described later) for performing processing in the master control unit 27, and the E2PROM 43 performs processing in the slave control unit 47. Is recorded (a program defining the processing shown in FIG. 4 to be described later).

The battery part 26 and the battery part 46 are comprised by the lithium ion secondary battery optimized for the electric vehicle or the hybrid vehicle. A lithium ion secondary battery is mounted on each of the master cell battery 21 and the slave cell batteries 3 _{1 to} 3 _n , and the motor drive unit 35 is driven by the electric power output from the lithium ion secondary battery. It is possible to run the vehicle. In addition, the battery which comprises the battery part 26 and the battery part 46 is not limited only to a lithium ion secondary battery, If it is a battery which can be utilized for a motor vehicle, it will be other than a lithium ion secondary battery. A battery having the following structure may be used.

  The drive power supply control unit 24 and the drive power supply control unit 44 turn on / off the power supplied from the battery unit 26 and the battery unit 46 to the drive unit 35 from the master control unit 27 and the slave control unit 47. It has a role of switching control based on the control signal. When the power supply in the drive power supply control unit 24 and the drive power supply control unit 44 is set to ON, a total amount of 1500 V of power is supplied to the drive unit 35 in the battery box unit 20.

  Further, the system power supply control unit 25 and the system power supply control unit 45 turn on / off the power supply for driving the system output from the battery unit 26 and the battery unit 46 from the master control unit 27 and the slave control unit 47. It has a role of switching control based on the control signal. The power supply for driving the system is the minimum power supply required for the process of reading the card information from the authentication card 10a in the card reader unit 10 and required for the door lock opening / closing operation in the vehicle. This means a 5V power supply.

The power supply of 5V for driving the system can be sufficiently provided by the power supply of one cell battery. For this reason, the system power supply control unit 45 provided in the slave cell batteries 3 _{1 to} 3 _n is basically set to off and is not turned on. On the other hand, the system power supply control unit 25 provided in the master cell battery 21 is turned on in the initial process of the master control unit 27 described later.

  That is, the system power supply control unit 25 is in a state in which the engine is stopped and the key is removed from the key cylinder even before the card information is determined to be valid card information by the authentication of the card information. Even if it exists, it is always set to ON and the state where electric power supply is performed is maintained. Thus, by always supplying 5V power (minimum power supply necessary for system driving), not only the card information reading process in the card reader unit 10 but also the keyless opening / closing process of the vehicle door, etc. It is possible to secure the security and convenience of the entire vehicle.

  The master control unit 27 has a role of performing transmission / reception processing of various information, authentication processing of card information, control processing of the drive power control unit 24, and the like according to a program recorded in the E2PROM 23. Similarly, the slave control unit 47 also has a role of performing various information transmission / reception processing, card information authentication processing, drive power supply control unit 44 control processing, and the like according to a program recorded in the E2PROM 43. Note that the master control unit 27 and the slave control unit 47 are configured by a general CPU (Central Processing Unit).

  Next, processing contents in the master control unit 27 and processing contents in the slave control unit 47 will be described.

  FIG. 3 is a flowchart showing processing contents in the master control unit 27. The master control unit 27 executes the processing shown in FIG. 3 based on the program read from the E2PROM 23.

First, the master control unit 27 performs initial processing (step S.1). Specifically, the master control unit 27 checks whether the communication unit 22 can communicate with the card reader unit 10 via the communication cable 11 or communicates with each of the slave cell batteries 3 _{1 to} 3 _n . Check if communication is possible.

The master control unit 27, in the check of the communication with the slave cell battery ₃ 1 to 3 _n, the slave cell battery ₃ 1 to 3 connected to the slave cell battery ₃ 1 to 3 _n of the number of connections (master cell battery 21 _n ). In this initial process, the master control unit 27 controls the system power supply control unit 25 to be turned on to enable 5 V power supply necessary for the reading process of the authentication card 10a in the card reader unit 10 and the like. Then, the drive power supply control unit 24 is controlled to be turned off, and the process of stopping the power supply to the drive unit 35 is performed.

  Next, the master control unit 27 performs acquisition processing of card set information indicating that the authentication card 10a is set (inserted) in the card reader unit 10 from the card reader unit 10 (step S.2), and the communication cable 11 Whether or not the card set information has been acquired (notified) is determined (step S.3). When the authentication card 10a is not set (inserted) in the card reader unit 10, the master control unit 27 cannot acquire the card set information (not notified).

  If the card set information has not been acquired (No in step S.3), the master control unit 27 repeatedly acquires the card set information (step S.2), and sets the card set via the communication cable 11. It is determined whether or not information has been acquired (step S.3).

  When the card set information is acquired (Yes in step S.3), the master control unit 27 reads the card information (third authentication) of the authentication card 10a read by the card reader unit 10 via the communication cable 11. Information) is acquired (step S.4). Next, the master control unit 27 reads and acquires legitimate card information (first authentication information) recorded in the E2PROM 23 of the master cell battery 21 (step S.5). Then, the master control unit 27 performs an authentication process as to whether or not the card information acquired from the card reader unit 10 matches the valid card information recorded in the E2PROM 23 (step S.6).

If the card information does not match due to the result of the authentication process (No in step S.7), the master control unit 27 displays an error message indicating that the card information does not match on a warning display unit in the vehicle compartment, not shown. (For example, a predetermined icon in the meter is blinked) (step S.8), and the drive power supply control unit 44 is set to OFF for the slave control unit 47 of each of the slave cell batteries 3 _{1 to} 3 _n. The control information to that effect is output (step S.9), and the process is terminated with the drive power supply control unit 24 of the master cell battery 21 turned off.

On the other hand, when the card information matches according to the result of the authentication process (Yes in step S.7), the master control unit 27 acquires from the card reader unit 10 for each of the slave cell batteries 3 _{1 to} 3 _n . Card information (third authentication information) is output (step S.10). In each of the slave cell batteries 3 _{1 to} 3 _n , as will be described later, card information (third authentication information) is obtained from the master control unit 27 of the master cell battery 21, and authentication processing is performed. Output to the master control unit 27.

The master control unit 27 performs a process of acquiring authentication results (judgment results) from the slave cell batteries 3 _{1 to} 3 _n (step S.11), and obtains authentication results from all the slave cell batteries 3 _{1 to} 3 _n. It is determined whether or not (step S.12). When the authentication result is not obtained from all the slave cell batteries 3 _{1 to} 3 _n (No in Step S.12), the master control unit 27 continues to authenticate the result from each slave cell battery 3 _{1 to} 3 _n. Is performed repeatedly (step S.11).

When the authentication result is obtained from all the slave cell batteries 3 _{1 to} 3 _n (Yes in step S.12), the master control unit 27 indicates that all the authentication results are the respective slave cell batteries 3 _{1 to} 3 _n. It is determined whether or not the information (authentication OK information) matches the card information (second authentication information) recorded in the E2PROM 43 (step S.13).

When all the authentication results are not the authentication OK information (when at least one authentication NG information indicating that the authentication is NG is acquired: No in step S.13), the master control unit 27 Is displayed on the warning display section in the vehicle compartment, etc., in which the card information is omitted (step S.8), and the power source for driving is supplied to the slave control section 47 of each of the slave cell batteries 3 _{1 to} 3 _n. Control information indicating that the control unit 44 is set to OFF is output (step S.9), and the process ends with the drive power supply control unit 24 of the master cell battery 21 being turned off.

On the other hand, when all the authentication results are the authentication OK information (Yes in step S.13), the master control unit 27 controls the drive power control unit 24 of the master cell battery 21 to be on ( Step S.14), supply of driving power is started. In addition, the master control unit 27 outputs control information (power supply command) indicating that each of the drive power supply control units 44 is set to ON to all the slave cell batteries 3 _{1 to} 3 _n (Step S1). S.15), the process is terminated.

Next, processing contents in each of the slave cell batteries 3 _{1 to} 3 _n will be described. FIG. 4 is a flowchart showing the processing contents in the slave control unit 47 of each of the slave cell batteries 3 _{1 to} 3 _n . The slave control unit 47 executes the processing shown in FIG. 4 based on the program read from the E2PROM 23.

  First, the slave control unit 47 performs initial processing (step S.21). Specifically, it is checked whether or not communication with the master control unit 27 is possible. In this initial process, the slave control unit 47 controls the system power supply control unit 45 to turn off, sets the state where 5V power is not supplied, and controls the drive power supply control unit 44 to turn off. And the process which stops the electric power supply with respect to the drive part 35 is performed.

  Next, the slave control unit 47 performs a card information acquisition process from the master control unit 27 (step S.22), and determines whether or not the card information has been acquired (step S.23). When the card information is not acquired (received) from the master control unit 27 (No in step S.23), the slave control unit 47 repeatedly executes card information acquisition processing (step S.22).

  On the other hand, when the card information can be obtained (received) from the master control unit 27 (Yes in step S.23), the slave control unit 47 authenticates the valid card information (second authentication information) recorded in the E2PROM 43. Is acquired (step S.24), and the card information (third authentication information) acquired from the master control unit 27 matches the valid card information (second authentication information) recorded in the E2PROM 43. The authentication process of NO is performed (step S.25).

  If the card information does not match due to the result of the authentication process (No in step S.26), the slave control unit 47 indicates the authentication NG information that the acquired card information does not match the valid card information, as the master control unit. 27 (step S.27), and the process is terminated.

  On the other hand, when the card information matches with the result of the authentication process (Yes in step S.26), the slave control unit 47 matches the card information acquired to the master control unit 27 with the valid card information. Authentication OK information to that effect is output (step S.28).

  Thereafter, the slave control unit 47 performs a process of acquiring control information for setting the drive power supply control unit 44 on or off from the master control unit 27 (step S.29). When the control information cannot be acquired (No in step S.30), the slave control unit 47 repeatedly performs a process of acquiring control information from the master control unit 27 (step S.29).

  When the control information can be acquired (Yes in step S.30), the slave control unit 47 determines whether the control information is control information (power supply command) for controlling the drive power supply control unit 44 to be on. Is determined (step S.31).

  When the control information is control information (power supply command) for controlling the drive power supply control unit 44 to be turned on (Yes in step S.32), the slave control unit 47 turns on the drive power supply control unit 44. Control is performed (step S.33), and after the power supply for driving is started, the process is terminated. On the other hand, when the control information is control information for controlling the drive power supply control unit 44 to be turned off (No in step S.32), the slave control unit 47 controls the drive power supply control unit 44 to be turned off. (With the drive power supply controller 44 kept in the OFF state, step S.34), the process is terminated without supplying drive power.

As described above, in the battery unit device 1 according to Embodiment 1, the master control unit 27 of the master cell battery 21 uses the card information (third authentication information) read from the authentication card 10 a via the card reader unit 10. The legitimate card information (first authentication information) acquired and recorded in the E2PROM 23 of the master cell battery 21 and the legitimate card information (second authentication information) recorded in the E2PROM 43 of the slave cell batteries 3 _{1 to} 3 _n The power supply to the drive unit 35 is started only when the authentication with the normal card information of the master cell battery 21 and all the slave cell batteries 3 _{1 to} 3 _n is OK. It has become.

For this reason, for example, even if a third party steals _{one of the} vehicle's master cell battery 21 or slave cell batteries 3 _{1 to} 3 _n and installs it in his / her vehicle, the card information does not match. Therefore, it becomes impossible to supply power using the cell battery.

  Further, even if any cell battery is replaced by a bad cell battery by a third party, the card information of the replaced cell battery and the card information of the authentication card 10a read by the card reader unit 10 are different. Thus, since an error display or the like is performed, the user can easily know that the cell battery does not come out of the regular cell battery.

Further, in the above-described processing, the number of connected slave cell batteries 3 _{1 to} 3 _n connected by the master control unit 27 of the master cell battery 21 through the communication check with each of the slave cell batteries 3 _{1 to} 3 _n in the initial processing. since checking is performed (installed base), when the preset slave cell battery 3 ₁ to 3 _n number of connections of the check and connections are different, one of slave cell battery 3 ₁ theft It is possible to easily know what is happening.

Furthermore, since the authentication processing of all the cell batteries 21, 3 _{1 to} 3 _n is performed on the battery unit device 1 side, it is not necessary to separately install processing units necessary for the authentication processing on the vehicle side. The battery unit device 1 can be easily installed. Further, since the authentication process is performed not on the vehicle side but on the battery unit device 1 side, the processing content of the authentication process is black boxed on the vehicle side. For this reason, even when the new battery unit device 1 in which the processing content of the authentication process has been changed and the battery unit device 1 having the old processing content are replaced, the battery unit device 1 on the vehicle side The new battery unit device 1 can be used without being affected by changes in the processing content.

Further, the battery unit apparatus 1 is constituted by a number of slave cell battery 3 ₁ to 3 _n, the reduction of the cost since it is possible to enhance the versatility and mass production of the cell battery by a number of slave cell battery 3 ₁ to 3 _n It becomes easy to plan.

Further, the cell battery 21,3 _{1-3 when n} of the battery unit 26, 46 is deteriorated, all-cell battery 21,3 _{1-3 n} replaced without need to a time, a battery unit 26 that is deteriorated, Since only 46 cell batteries can be exchanged, it becomes possible to exchange cell batteries flexibly and individually in accordance with the performance deterioration of the battery unit.

In addition, since the battery unit device 1 is composed of a plurality of cell batteries 21, 3 _{1 to} 3 _n , the battery unit device 1 is discharged when, for example, an energy supply device that charges the removed cell battery in the garage is constructed. Since the cell battery can be easily replaced with a charged cell battery, it is possible to easily replace and charge the battery.

Furthermore, the basic configuration of the master cell battery 21 and the slave cell batteries 3 _{1 to} 3 _n is the same as shown in FIG. Therefore, whether the cell battery plays the role of the master cell battery 21 or the role of the slave cell batteries 3 _{1 to} 3 _n is determined by the program recorded in the E2PROM 23 and the E2PROM 43 by the master control shown in FIG. 4 or the slave control unit 47 shown in FIG. 4 and the connection relationship of the cell batteries in the battery unit device 1 (the master cell battery 21 is the card reader unit 10). And all the slave cell batteries 3 _{1 to} 3 _n, and the slave cell batteries 3 _{1 to} 3 _n are connected only to the master cell battery 21). Therefore, the master cell battery 21 nor slave cell battery 3 ₁ for hardware configuration is common, it is possible to increase the productivity of the cell batteries.

[Embodiment 2]
Next, a battery unit device according to Embodiment 2 will be described.

  FIG. 5 is a block diagram showing a schematic configuration of the battery unit device according to the second embodiment. Components having the same role as the battery unit device 1 described in the first embodiment are denoted by the same reference numerals and description thereof is omitted.

The battery unit device 50 shown in FIG. 5 is different from the battery unit device 1 described in the first embodiment in that an authentication device (authentication determination unit) 51 is provided instead of the master cell battery 21. FIG. 6 is a block diagram showing a schematic configuration of the authentication device 51 and the slave cell batteries 3 _{1 to} 3 _n . 6, for convenience of explanation, but shows only one slave cell battery 3 _1, in fact, are respectively connected to the plurality of slave cell battery 3 ₁ to 3 _n authentication device 51, the authentication device 51 and the slave cell batteries 3 _{1 to} 3 _n can transmit the card information and return the authentication result.

  The authentication device 51 includes a communication unit 22, an E2PROM 23, and a master control unit 27. When the authentication device 51 is compared with the master cell battery 21 described in the first embodiment, the authentication device 51 is common in that the communication unit 22, the E2PROM 23, and the master control unit 27 are included. And the drive power supply control unit 24 and the system power supply control unit 25 for controlling the amount of power supplied in the battery unit 26 are not provided.

Further, card information is not recorded in the E2PROM 23 of the authentication device 51. Card information (battery authentication information), only the E2PROM (recording means) 43 of each slave cell battery ₃ 1 to 3 _n are recorded, the E2PROM23 of the authentication device 51, showing the contents in the master control unit 27 Only recorded programs are recorded. The master control unit 27 reads out a control program from the E2PROM 23 and performs authentication processing in each of the slave cell batteries 3 _{1 to} 3 _n .

  FIG. 7 is a flowchart showing the processing contents in the master control unit 27 of the authentication device 51. The master control unit 27 executes the process shown in FIG. 7 based on the program read from the E2PROM 23.

First, the master control unit 27 performs an initial process (step S.41). Specifically, the master control unit 27 checks whether communication with the card reader unit 10 is possible via the communication cable 11 by the communication unit 22 or the communication with the slave cell batteries 3 _{1 to} 3 _n . Check if communication is possible.

Further, the master control unit 27 performs step S. shown in FIG. Similar to the first initial treatment, the checking of the communication with the slave cell battery ₃ 1 to 3 _n, the slave cell battery ₃ 1 to 3 _n which are connected to the slave cell battery ₃ 1 to 3 _n of the number of connections (authentication device 51 Etc.).

  In this initial process, the authentication device 51 outputs information indicating that the system power supply control unit 45 is turned on to any one of the slave cell batteries. In one slave cell battery that has acquired information indicating that the system power supply control unit 45 is turned on, the power supply control unit 45 is set to on so that the card reader unit 10 can read the authentication card 10a. A process for enabling the necessary 5 V power supply is performed.

  Next, the master control unit 27 performs acquisition processing of card set information indicating that the authentication card 10a is set (inserted) in the card reader unit 10 from the card reader unit 10 (step S.42). Whether or not the card set information has been acquired (notified) is determined (step S.43).

  When card set information is not acquired (in the case of No in step S.43), the master control unit 27 repeatedly performs acquisition processing of card set information (step S.42), and sets the card set via the communication cable 11. It is determined whether information has been acquired (step S.43).

When the card set information is acquired (Yes in step S.43), the master control unit 27 reads the card information (for the recording medium) of the authentication card 10a read by the card reader unit 10 via the communication cable 11. Authentication information) is acquired (step S.44). Then, the master control unit 27 outputs the card information (recording medium authentication information) acquired from the card reader unit 10 to each of the slave cell batteries 3 _{1 to} 3 _n (step S.45). In each of the slave cell batteries 3 _{1 to} 3 _n , the card information (recording medium authentication information) is sent from the master control unit 27 of the authentication device 51 in the same manner as described with reference to the flowchart shown in FIG. Is acquired, authentication processing is performed, and an authentication result (judgment result) is returned to the master control unit 27 of the authentication device 51.

The master control unit 27 performs processing for acquiring the authentication result from each of the slave cell batteries 3 _{1 to} 3 _n (step S.46), and whether or not the authentication result has been acquired from all the slave cell batteries 3 _{1 to} 3 _n . (Step S.47). When the authentication result is not obtained from all the slave cell batteries 3 _{1 to} 3 _n (No in step S.47), the master control unit 27 continues to authenticate from each slave cell battery 3 _{1 to} 3 _n. Is performed repeatedly (step S.46).

When the authentication result is obtained from all the slave cell batteries 3 _{1 to} 3 _n (Yes in Step S.47), the master control unit 27 indicates that all the authentication results are the respective slave cell batteries 3 _{1 to} 3 _n. It is determined whether or not the authentication OK information indicates that it matches the card information recorded in the E2PROM 43 (step S.48).

When all the authentication results are not the authentication OK information (when at least one authentication NG information is acquired: No in step S.48), the master control unit 27 displays a warning in the vehicle compartment that is not illustrated. Error information indicating that the card information does not match is displayed (step S.49), and the drive power control unit 44 is set to OFF for the slave control unit 47 of each of the slave cell batteries 3 _{1 to} 3 _n. Control information to that effect is output (step S.50), and the process is terminated.

On the other hand, when all the authentication results are authentication OK information (Yes in step S.48), the master control unit 27 performs driving for each of the slave cell batteries 3 _{1 to} 3 _n . Control information (power supply command) for setting the power supply control unit 44 to ON is output (step S.51), and the process ends.

In the slave control unit 47 of the slave cell batteries 3 _{1 to} 3 _n , processing similar to the flowchart shown in FIG. 4 is performed.

In the battery unit device 50 shown in the second embodiment, one of the plurality of cell batteries is not set as the master cell battery 21, but the card information acquisition process in the master cell battery 21, the slave cell battery 3 ₁ to 3. authentication processing card information in 3 _n and is characterized by setting the authentication device 51 that performs only on-off control process of the drive power supply control unit 44.

By setting the authentication device 51 in this way, all cell batteries can be made to function as slave cell batteries. Therefore, unlike the master cell battery 21 shown in the first embodiment, it is not necessary to individually record the program for the master cell battery 21 only in the E2PROM 23 of one cell battery functioning as the master cell battery 21. There is no need to divide the cell battery between the master cell battery 21 and the slave cell batteries 3 _{1 to} 3 _n . For this reason, it becomes easy to reduce the manufacturing load of the cell battery, the manufacturing cost, the product management, and the like.

Moreover, the cell batteries all for functioning as a slave cell battery 3 ₁ to 3 _n is the installation position of the slave cell battery 3 ₁ to 3 _n of the battery unit 50 is may be any position. For this reason, like the battery unit apparatus 1 shown in Embodiment 1, the installation position of the cell battery corresponding to the master cell battery 21 and the installation position of the cell battery corresponding to the slave cell batteries 3 _{1 to} 3 _n are determined. Since it is not necessary to divide the battery, the burden of installing the cell battery is reduced, and it is possible to suppress the occurrence of troubles due to an incorrect installation position between the master cell battery 21 and the slave cell batteries 3 _{1 to} 3 _n .

  Although the battery unit device according to the present invention has been described in detail with reference to the drawings, the battery unit device according to the present invention is not limited to the configuration exemplified in the first embodiment or the second embodiment described above. . It will be apparent to those skilled in the art that various changes and modifications can be made within the scope of the claims, and these are naturally within the technical scope of the present invention. Understood.

  For example, in the battery unit device 1 shown in the first embodiment and the battery unit device 50 shown in the second embodiment, the card information is read from the authentication card 10a by the card reader unit 10 and recorded in the E2PROM 23 or the E2PROM 43. It was to compare with card information. This card information is not generally limited to only information (user code) for identifying a user, but also supplies other unit information, for example, a user code, and a battery unit device 1 or 50. Or a manufacturer code for identifying the supplier may be added, or a system code for checking the rewriting of the E2PROM by a third party may be added.

For example, by adding the manufacturer code to the card information, even when the user code and the manufacturer code recorded in the E2PROM 23 of the master cell battery 21 or the E2PROM 43 of the slave cell batteries 3 _{1 to} 3 _n are rewritten, When the actual cell battery manufacturer or the like is different from the manufacturer code manufacturer or the like, an error is output because the manufacturer or the like does not match. Therefore, it is possible to quickly determine the malfunction of the cell battery.

  Further, a system code such as “A5A5A5Ah” is added to the card information, and the system code is recorded in the E2PROM 23 or E2PROM 43 separately from the user code, and the system code is recorded together with the user code in the authentication card 10a. . By recording the system code in this way, when a third party rewrites information in the E2PROM 23 or E2PROM 43, the system code is also rewritten. Can be reliably determined.

Furthermore, in the first embodiment and the second embodiment, when authentication of the card information with the slave cell batteries 3 _{1 to} 3 _n is recognized in the master cell battery 21 or the authentication device 51 (when the authentication OK information is acquired). ), The process of supplying power by setting the drive power control units 44 and 24 to ON in each cell battery has been described. However, when the authentication is approved by the authentication process, the authentication is approved not only by simply turning on the drive power control units 44 and 24 and supplying power, but also by changing and setting the mode in advance. In such a case, a different process may be performed.

For example, card information recorded on E2PROM23 of master cell battery 21, a user code rewrite mode for rewriting the card information recorded on E2PROM43 of slave cell battery ₃ 1 to 3 _n are previously provided, the card information authentication It is also possible to perform processing so that the user codes of all E2PROMs 23 and E2PROMs 43 can be rewritten on the condition that they are recognized.

  For example, when a vehicle is sold and the owner changes, a used car dealer or a car dealer needs to rewrite the user codes of the E2PROM 23 and the E2PROM 43 with the new owner's user code. Therefore, after the setting mode is set to the user code rewriting mode, the user code rewriting mode is set by an authorized owner (or authorized person) by performing card information authentication processing. Therefore, it is possible to optimally change the valid user codes of the E2PROM 23 and the E2PROM 43 used for the subsequent authentication process.

  Further, for example, in the authentication of card information, it is possible to perform a setting in which a double authentication process of a user code and a manufacturer code is performed and the debugging mode is entered when both authentications are permitted. In addition, it is possible to shift to the forced rewrite mode in which the forced data rewrite processing of the E2PROM 23 and E2PROM 43 is permitted only when all of the plurality of code information (user code, manufacturer code, and other code information) is authenticated. It is also possible to set so that

Furthermore, in the battery unit device 50 according to the second embodiment, after the master control unit 27 of the authentication device 51 acquires the card information of the authentication card 10a from the card reader unit 10 via the communication cable 11, the master control unit 27 The case where the card information acquired as it is is transmitted to each of the slave cell batteries 3 _{1 to} 3 _n without performing the authentication process has been described. However, the card information (first authentication information) is recorded in the E2PROM 23 of the authentication device 51, the card information (first authentication information) recorded in the E2PROM 23, and the card information of the authentication card 10a acquired from the card reader unit 10 ( Only when the third authentication information) matches, the master control unit 27 transmits the card information (third authentication information) acquired from the card reader unit 10 to each of the slave cell batteries 3 _{1 to} 3 _n . A configuration is also possible. Thus, by performing the card information authentication process by the master control unit 27 of the authentication apparatus 51, it is possible to increase the security of the authentication process in the battery unit apparatus.

DESCRIPTION OF SYMBOLS 1, 50 ... Battery unit apparatus 10 ... Card reader part (authentication information acquisition means)
10a: Authentication card (recording medium)
11 ... Communication cable 20 ... Battery box part 21 ... Master cell battery (master battery unit)
22 ... Communication unit 23 (of the master cell battery or authentication device) ... E2PROM (of the master cell battery or authentication device) (first recording means)
24... Power source controller for driving (master cell battery) (master control means)
25 ... System power supply control unit (master control means) (of the master cell battery)
26 ... Battery part (of the master cell battery) (first battery means)
27 ... Master control unit (master control means) (master cell battery or authentication device)
35 ... Drive unit 3 _{1 to} 3 _n ... Slave cell battery (slave battery unit)
42 ... Communication unit 43 (of slave cell battery) ... E2PROM (second recording means, recording means) (slave cell battery)
44... Power supply controller for driving (slave cell battery) (slave control means)
45 ... System power supply controller (slave control means) (for slave cell battery)
46... Battery part (of the slave cell battery) (battery means, second battery means)
47 ... Slave control unit (slave control battery)
51 ... Authentication apparatus (authentication judgment means)

Claims (2)

First battery means, first recording means for recording first authentication information used for determining whether or not to allow power supply by the first battery means, and whether or not to allow the power supply by the first battery means A master battery unit comprising: master control means for determining whether or not to control the power supply by the first battery means;
Obtaining a power supply command from the second battery means, a second recording means for recording second authentication information used for determining whether or not to allow power supply by the second battery means, and the master control means; A slave battery unit comprising slave control means for enabling the power supply by the second battery means on condition that
Authentication information acquisition means for reading third authentication information recorded on the recording medium from a recording medium owned by a user who desires the power supply by the first battery means and the second battery means;
The master control unit acquires the third authentication information from the authentication information acquisition unit, and determines whether or not the third authentication information matches the first authentication information recorded in the first recording unit. And outputting the third authentication information to the slave control means,
The slave control unit obtains the third authentication information from the master control unit, and determines whether or not the third authentication information matches the second authentication information recorded in the second recording unit. Output the judgment result to the master control means,
The master control means determines that the third authentication information and the first authentication information match, and the third authentication information and the second authentication information are based on a determination result obtained from the slave control means. Only when it is determined that they match, the master control means recognizes the power supply by the first battery means, starts the power supply by the first battery means, and supplies the power to the slave control means. A battery unit device that outputs an instruction. Battery means, recording means for recording battery authentication information used to determine whether or not to allow power supply by the battery means, and the power supply by the battery means on condition that a power supply command is obtained. A slave battery unit comprising slave control means for enabling;
Authentication determination means comprising master control means for determining whether or not to allow the power supply by the battery means;
Authentication information acquisition means for reading authentication information for recording medium recorded on the recording medium from a recording medium owned by a user who desires the power supply by the battery means;
The master control means acquires the recording medium authentication information from the authentication information acquisition means and outputs it to the slave control means.
The slave control unit obtains the recording medium authentication information from the master control unit, and determines whether or not the recording medium authentication information matches the battery authentication information recorded in the recording unit. Output the judgment result to the master control means,
The master control unit recognizes the power supply by the battery unit only when it is determined that the recording medium authentication information and the battery authentication information match based on the determination result obtained from the slave control unit. And outputting the power supply command to the slave control means.
A battery unit device characterized by the above.

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