JP2011242202A - Power storage device specifying system - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a power storage device specifying system capable of determining classification of a power storage device with a simpler configuration.SOLUTION: A power storage device specifying system 10 uses temperature monitoring signal line parts 232 and 234, which are arranged in a battery pack 20 beforehand to monitor a status of a power storage device 220, as classification determination signal line parts 232 and 234 to determine a classification of the power storage device 220. The power storage device specifying system 10 comprises: the battery pack 20 which is arranged to output a value, which corresponds to the classification of the power storage device 220, from the classification determination signal line parts 232 and 234; and a control part 30 which determines the classification of the power storage device 220 based on the value output from the classification determination signal line parts 232 and 234 of the battery pack 20.

Description

  The present invention relates to a power storage device classification system, and more particularly to a power storage device classification system that determines the type of a power storage device.

  At present, awareness of environmental issues is increasing, and electric vehicles and hybrid vehicles are attracting attention. An electric vehicle and a hybrid vehicle travel using a secondary battery (power storage device) such as a lithium ion battery or a nickel metal hydride battery. A plurality of types of lithium ion batteries and nickel metal hydride batteries mounted on electric vehicles and hybrid vehicles have been developed in order to meet various demands of users.

  As a technique related to the present invention, for example, in Patent Document 1, as an electric vehicle, the total installed battery capacity is divided into a fixed part and an increase / decrease part, and the increase / decrease part is arranged above the vehicle body chassis and at least one place. A configuration is disclosed in which each of the increase / decrease units includes a space in which at least one battery module can be attached and detached.

JP 2004-262357 A

  By the way, since such a plurality of types of secondary batteries have different standards such as battery capacity and output standard, the specifications of each secondary battery also apply to control devices that control electric vehicles and hybrid vehicles. A plurality of types of control devices have been developed to meet the above requirements. Therefore, it is necessary to install a secondary battery of a type corresponding to a control device for controlling an electric vehicle or a hybrid vehicle. However, if the shape of multiple types of secondary batteries is the same, the type of secondary battery is mistaken. Since it may be attached, it is desirable to automatically determine the type of the secondary battery.

  An object of the present invention is to provide a power storage device type system that makes it possible to determine the type of a power storage device with a simpler configuration.

  The power storage device type system according to the present invention uses a state monitoring signal line portion provided in advance for monitoring the state of the power storage device as a type determination signal line portion for determining the type of the power storage device. The battery device unit set so that a value corresponding to the type of signal is output from the type determination signal line unit, and the type of power storage device based on the value output from the type determination signal line unit of the battery device unit A type determination unit for determining whether or not.

  In the power storage device type system according to the present invention, the state monitoring signal line unit is connected to a state detection element for detecting the state of the power storage device and one end of the state detection element, and is pulled up to a predetermined voltage. One side signal line and the other side signal line connected to the other side of the state detection element and grounded are processed and stored so that the one side signal line and the other side signal line are short-circuited or opened. It is preferable to set so that a value corresponding to the type of device is output, and use the state monitoring signal line unit as a type determination signal line unit for determining the type of power storage device.

  In the power storage device type system according to the present invention, a plurality of state monitoring signal line units are provided, and a plurality of type determination signal line units are used as a plurality of type determination signal line units. It is preferable that the same value is output from the signal line section for use.

  Further, in the power storage device classification system according to the present invention, the type determination unit may determine that an abnormality exists in the type determination signal line unit when the values output from the plurality of type determination signal line units are different. preferable.

  Further, in the power storage device type system according to the present invention, the type determination unit is a control unit that controls the entire system, and the control unit is configured to control the system when the type of the power storage device matches the type of the desired power storage device. It is preferable to permit activation and prohibit system activation when the type of power storage device does not match the desired type of power storage device.

  In the power storage device classification system according to the present invention, the type determination unit stores the determination history when the type of the power storage device is determined, and the storage unit stores the determination history of the power storage device when there is no determination history of the power storage device. It is preferable to include a determination execution unit that determines the type of device.

  According to the power storage device type system configured as described above, the state monitoring signal line unit is used as the type determination signal line unit, and the type of the power storage device is determined based on the value output from the type determination signal line unit. be able to. Thereby, the kind of electrical storage apparatus can be determined with a simpler configuration.

In embodiment which concerns on this invention, it is a figure which shows the structure of the power supply device system containing the electrical storage apparatus classification system. In embodiment which concerns on this invention, it is a figure shown about a battery pack. In embodiment which concerns on this invention, when an electrical storage apparatus is a Li (B) battery of two types of lithium ion secondary batteries, it is a figure which shows the structure of the power supply device system containing an electrical storage apparatus classification system. . In embodiment which concerns on this invention, when an electrical storage apparatus is a Li (B) battery of two types of lithium ion secondary batteries, it is a figure which shows the relationship between an electrical storage apparatus, a monitoring unit, and a control part. In embodiment which concerns on this invention, when an electrical storage apparatus is a Li (A) battery of two types of lithium ion secondary batteries, it is a figure which shows the structure of the power supply device system containing an electrical storage apparatus classification system. . In embodiment which concerns on this invention, when an electrical storage apparatus is a Li (A) battery of two types of lithium ion secondary batteries, it is a figure which shows the relationship between an electrical storage apparatus, a monitoring unit, and a control part. In embodiment which concerns on this invention, it is a figure which shows each element of a control part. In embodiment which concerns on this invention, it is a flowchart which shows the procedure which determines the kind of battery pack in a control part, and permits / inhibits system starting.

  Below, the same code | symbol is attached | subjected to the same element in all the drawings, and the overlapping description is abbreviate | omitted. In the description in the text, the symbols described before are used as necessary.

  FIG. 1 is a diagram showing a configuration of a power supply device system 8 including a power storage device type system 10. The power supply system 8 is a system mounted on a hybrid vehicle. The power supply device system 8 includes a motor generator 14, a power supply circuit 12, and a power storage device type system 10.

  Motor generator 14 is a three-phase AC rotating electric machine that includes a U-phase coil, a V-phase coil, and a W-phase coil. Motor generator 14 is rotationally driven by the electric power stored in power storage device 220, and the hybrid vehicle travels by this rotational drive. Further, the motor generator 14 can also generate electric power by the power from the engine when the engine of the hybrid vehicle is operating.

  The power supply circuit 12 includes a step-up / step-down converter circuit and an inverter circuit controlled by the control unit 30, boosts the DC voltage output from the power storage device 220 to a predetermined voltage, and then converts the boosted DC voltage. It has a function of converting to an AC voltage and supplying it to the motor generator 14. Furthermore, the power supply circuit 12 includes a relay circuit controlled by the control unit 30. When the relay circuit is connected, the power storage device 220 and the power supply circuit 12 are electrically connected, and the relay circuit is cut off. When the power is on, the power storage device 220 and the power supply circuit 12 are electrically disconnected.

  The power storage device type system 10 includes a battery pack 20 and a control unit 30. First, the battery pack 20 will be described, and then the control unit 30 will be described. The power storage device type system 10 has a function of determining the type of the battery pack 20 (the type of the power storage device 220) and determining whether or not the type of the battery pack 20 matches the type of the control unit 30. Yes. In addition, the power storage device type system 10 has a function of prohibiting activation of the system when the type of the battery pack 20 does not match the type of the control unit 30.

  FIG. 2 is a diagram showing the battery pack 20. The battery pack 20 includes a power storage device 220, a bus bar module 250, and a monitoring unit 210. The power storage device 220 is configured by sandwiching a large number of cells and sandwiching both ends with an end plate made of resin. The power storage device 220 is a chargeable / dischargeable DC power source, and includes, for example, a negative electrode made of a carbon material, an electrolyte solution for moving lithium ions, and a positive electrode active material capable of reversing lithium ions. The lithium ion secondary battery which has can be used. And it is known that the characteristics of the lithium ion secondary battery vary greatly depending on the negative electrode, the electrolyte, the material of the positive electrode active material, and the like. Therefore, even when the battery packs 20 are configured by lithium ion secondary batteries having different characteristics, the shapes can be the same. In the following description, it is assumed that two types of lithium ion secondary batteries, Li (A) battery and Li (B) battery, are manufactured as lithium ion secondary batteries having different characteristics but the same shape.

  The power storage device 220 has a positive terminal or a negative terminal protruding from the upper surface (surface) of each cell, and the positive terminal / negative terminal is one negative terminal / positive terminal of an adjacent cell. Each terminal set is electrically connected by a bus bar module 250. Positive terminal 228 provided on the upper surface of one end cell of power storage device 220 is drawn out as a positive bus and connected to power supply circuit 12, and is provided on the upper surface of the other end cell of power storage device 220. The side terminal 229 is drawn out as a negative side bus and connected to the power supply circuit 12.

  The bus bar module 250 includes bus bars 251 to 256 and temperature monitoring signal line portions 232 to 242. The bus bar 251 is a member that electrically connects the terminal set 221. The bus bar 252 is a member that electrically connects the terminal set 222. The bus bar 253 is a member that electrically connects the terminal set 223. The bus bar 254 is a member that electrically connects the terminal set 224. The bus bar 255 is a member that electrically connects the terminal set 225. The bus bar 256 is a member that electrically connects the terminal set 226.

  The temperature monitoring signal line section 232 includes a thermistor element 232a that detects a temperature in a region between the terminal set 221 and the terminal set 222 in the surface temperature (upper surface temperature) of the power storage device 220, and a positive electrode side of the thermistor element 232a. And a positive electrode signal line 232b connected to the negative electrode side of the thermistor element 232a.

  The temperature monitoring signal line unit 234 is connected to the thermistor element 234a for detecting the temperature of the region between the positive electrode side terminal 228 and the terminal set 224 in the surface temperature of the power storage device 220, and to the positive electrode side of the thermistor element 234a. It includes a positive signal line 234b and a negative signal line 234c connected to the negative side of the thermistor element 234a.

  The temperature monitoring signal line portion 236 includes a thermistor element 236a that detects the temperature of the region between the terminal set 222 and the terminal set 223 in the surface temperature of the power storage device 220, and a positive electrode connected to the positive electrode side of the thermistor element 236a. A side signal line 236b and a negative side signal line 236c connected to the negative side of the thermistor element 236a are configured.

  The temperature monitoring signal line unit 238 includes a thermistor element 238a that detects the temperature of the region between the terminal set 224 and the terminal set 225 in the surface temperature of the power storage device 220, and a positive electrode connected to the positive electrode side of the thermistor element 238a. A side signal line 238b and a negative side signal line 238c connected to the negative side of the thermistor element 238a are configured.

  The temperature monitoring signal line portion 240 is connected to the thermistor element 240a for detecting the temperature of the region between the terminal set 223 and the negative electrode side terminal 229 in the surface temperature of the power storage device 220, and to the positive electrode side of the thermistor element 240a. It includes a positive signal line 240b and a negative signal line 240c connected to the negative electrode side of the thermistor element 240a.

  The temperature monitoring signal line portion 242 includes a thermistor element 242a that detects the temperature of the region between the terminal set 225 and the terminal set 226 in the surface temperature of the power storage device 220, and a positive electrode connected to the positive electrode side of the thermistor element 242a. A side signal line 242b and a negative side signal line 242c connected to the negative side of the thermistor element 242a are configured.

  Here, in FIG. 2, in order to facilitate understanding of the relationship between the bus bar module 250 and the power storage device 220, the bus bar module 250 is illustrated as being separated from the power storage device 220. It is assembled to the upper part of the device 220.

  The monitoring unit 210 is connected to each of the two signal lines of the temperature monitoring signal line portions 232 to 242, and has a function of monitoring the surface temperature of the power storage device 220 based on the voltage value output from each of the two signal lines. Have. Here, in each of the temperature monitoring signal line portions 232 to 242, in the monitoring unit 210, the positive signal line is pulled up to a power supply voltage (for example, 5 V) via a resistance element, and the negative signal line is grounded ( A voltmeter is attached between the positive signal line and the negative signal line. When the temperature monitoring signal line portions 232 to 242 are used to detect the surface temperature of the power storage device 220, the resistance values of the thermistor elements 232 a to 242 a change depending on the surface temperature of the power storage device 220. The voltage value detected by the voltmeter in 210 varies depending on the surface temperature. Therefore, the surface temperature of power storage device 220 can be detected by converting the voltage value detected by the voltmeter into a temperature. Six temperature monitoring signal line portions 232 to 242 are provided in advance to detect the temperature in a wide range of the surface of the power storage device 220. Here, the temperature monitoring signal line portions 236 and 238 are provided. , 240, and 242, and the remaining two temperature monitoring signal line portions 232 and 234 are used as type determination signal line portions for determining the type of the power storage device 220. In the above description, it has been described that the pull-up of the positive signal line and the grounding of the negative signal line of the temperature monitoring signal line portions 232 to 242 are performed inside the monitoring unit 210, but outside the monitoring unit 210. It may be done.

  FIG. 3 is a diagram illustrating a configuration of the power supply device system 8 including the power storage device type system 10 when the power storage device 220 is a Li (B) battery of two types of lithium ion secondary batteries. FIG. 4 is a diagram illustrating a relationship among the power storage device 220, the monitoring unit 210, and the control unit 30 when the power storage device 220 is a Li (B) battery of two types of lithium ion secondary batteries. Next, referring to FIGS. 3 and 4, the temperature monitoring signal line portions 232 and 234 are used as type determination signal line portions for determining the type of the power storage device 220, and the type determination signal line portions 232 and 234 are used. Will be described so that the value corresponding to the Li (B) battery is output. In FIG. 4, the temperature monitoring signal line portions 236, 238, 240, and 242 are not shown.

  When the power storage device 220 is a Li (B) battery, the positive-side signal line 232b of the type determination signal line unit 232 and the type determination signal line unit 232 so that 0v (Low) is output from the type determination signal line units 232 and 234 Processing is performed so as to short-circuit the negative-side signal line 232c and short-circuit the positive-side signal line 234b and the negative-side signal line 234c of the type determination signal line portion 234. The machining operation for the short circuit can be short-circuited by caulking two signal lines, for example. In this manner, the positive signal line 232b and the negative signal line 232c of the type determination signal line part 232 are short-circuited, and the positive signal line 234b and the negative signal line 234c of the type determination signal line part 234 are short-circuited. Therefore, 0V (Low) is detected by the voltmeters 212 and 214 of the monitoring unit 210, respectively.

  FIG. 5 is a diagram illustrating a configuration of the power supply device system 8 including the power storage device type system 10 when the power storage device 220 is a Li (A) battery of two types of lithium ion secondary batteries. FIG. 6 is a diagram illustrating a relationship among the power storage device 220, the monitoring unit 210, and the control unit 30 when the power storage device 220 is a Li (A) battery of two types of lithium ion secondary batteries. Next, referring to FIGS. 5 and 6, the temperature monitoring signal line portions 232 and 234 are used as type determination signal line portions for determining the type of the power storage device 220, and the type determination signal line portions 232 and 234 are used. Will be described so that the value corresponding to the Li (A) battery is output. In FIG. 6, the temperature monitoring signal line portions 236, 238, 240, and 242 are not shown.

  When the power storage device 220 is a Li (A) battery, the positive-side signal line 232b of the type determination signal line unit 232 and the type determination signal line unit 232 so that 5v (High) is output from the type determination signal line units 232 and 234 The negative side signal line 232c is cut and opened, and the positive side signal line 234b and the negative side signal line 234c of the type determination signal line portion 234 are cut and opened. Thus, the positive signal line 232b and the negative signal line 232c of the type determination signal line part 232 are opened, and the positive signal line 234b and the negative signal line 234c of the type determination signal line part 234 are opened. Therefore, 5v (High) is detected by the voltmeters 212 and 214 of the monitoring unit 210, respectively.

  The values detected by the voltmeters 212 and 214 of the monitoring unit 210 are transmitted to the control unit 30 via the data signal line unit 260.

  The control unit 30 has a function of controlling the entire power supply system 8 such as activating the power supply circuit 12 and starting the system by an external signal based on an IG-ON operation or the like of the user of the hybrid vehicle. The control unit 30 is connected to the monitoring unit 210 of the battery pack 20 by the data signal line unit 260, and is connected by the power supply circuit 12 and the control line unit 15. Hereinafter, among the functions of the control unit 30, an erroneous connection prevention function function of the battery pack 20 will be described. FIG. 7 is a diagram illustrating each element of the control unit 30.

  The control unit 30 includes a CPU 300 and a storage unit 314. The storage unit 314 is a memory that stores a determination history for grasping that the determination has been performed when the type of the power storage device 220 (type of the battery pack 20) is determined. For example, the storage unit 314 is rewritten many times. It is possible to configure using an EEPROM capable of. In addition, the storage unit 314 stores an erroneous connection prevention countermeasure program for performing an erroneous connection prevention countermeasure for the battery pack 20.

  The CPU 300 includes a battery replacement acquisition processing unit 302, a determination history confirmation processing unit 304, a connection abnormality determination processing unit 306, a battery incorrect connection determination processing unit 308, a system activation permission / prohibition processing unit 310, and a determination history storage. And a processing unit 312.

  The battery replacement acquisition processing unit 302 has a function of determining whether or not a signal generated when the battery pack 20 is replaced is acquired. The battery replacement acquisition processing unit 302 has a function of erasing the determination history information stored in the storage unit 314 when it is determined that a signal generated when the battery pack 20 is replaced is acquired.

  The determination history confirmation processing unit 304 has a function of accessing the storage unit 314 and determining whether or not a determination history related to the type determination of the power storage device 220 is stored.

  The connection abnormality determination processing unit 306 has a function of determining whether or not the measured voltage value of the voltmeter 212 matches the measured voltage value of the voltmeter 214. If the connection abnormality determination processing unit 306 determines that the measured voltage value of the voltmeter 212 does not match the measured voltage value of the voltmeter 214, the connection abnormality determination processing unit 306 determines that there is a connection abnormality in the type determination signal line units 232 and 234.

  The battery misconnection determination processing unit 308 has a function of determining whether or not the voltage value measured by the voltmeters 212 and 214 of the monitoring unit 210 matches the voltage value expected by the control unit 30. Specifically, when the control unit 30 is a control device corresponding to the battery pack 20 of the Li (B) battery, the expected voltage value is 0 v (Low), and the control unit 30 is the Li (A) battery. When the control device is compatible with the battery pack 20, the expected voltage value is 5v (High). Therefore, when the control unit 30 is a control device corresponding to the battery pack 20 of the Li (B) battery, if the voltage measured by the voltmeters 212 and 214 is 5 v (High), the battery pack 20 is erroneously set. Judge that it is tied. Further, when the control unit 30 is a control device corresponding to the battery pack 20 of the Li (A) battery, if the voltage measured by the voltmeters 212 and 214 is 0 v (Low), the battery pack 20 is erroneously set. Judge that it is tied.

  If the battery erroneous connection determination processing unit 308 determines that the voltage value measured by the voltmeters 212 and 214 matches the voltage value expected by the control unit 30, the system activation permission / prohibition processing unit 310 12 has a function of permitting activation of the system by activating 12. Further, the system activation permission / prohibition processing unit 310 determines in the battery misconnection determination processing unit 308 that the voltage value measured by the voltmeters 212 and 214 does not match the voltage value expected by the control unit 30. The power supply circuit 12 is activated to inhibit the system from being activated.

  The determination history storage processing unit 312 has a function of accessing the storage unit 314 and storing a determination history in the storage unit 314 for grasping that the type determination of the power storage device 220 has been performed.

  Next, the operation of the power storage device type system 10 having the above configuration will be described with reference to FIGS. FIG. 8 is a flowchart illustrating a procedure in which the control unit 30 determines the type of the battery pack 20 (the type of the power storage device 220) and permits / prohibits system activation. When there is an external signal based on an IG-ON operation or the like of the user of the hybrid vehicle, the control unit 30 executes an erroneous connection prevention countermeasure program stored in the storage unit 314 on the CPU 300. When the erroneous connection prevention countermeasure program is executed, first, the control unit 30 determines whether or not a signal generated when the battery pack 20 is replaced is acquired (S10). This process is executed by the function of the battery replacement acquisition processing unit 302 of the CPU 300. If it is determined in S10 that the signal generated when the battery pack 20 is replaced is not acquired, the process proceeds to S14.

  If it is determined in S10 that a signal generated when the battery pack 20 is replaced is obtained, the determination history in the storage unit 314 is cleared (S12). This process is executed by the function of the battery replacement acquisition processing unit 302 of the CPU 300. Then, it progresses to S14.

  In S14, it is determined whether or not the type determination of the power storage device 220 of the battery pack 20 has been performed (S14). This step is executed by the function of the determination history confirmation processing unit 304 of the CPU 300. If it is determined in S14 that the type determination of the power storage device 220 of the battery pack 20 has been performed, the process proceeds to the END process.

  If it is determined in S14 that the type determination of the power storage device 220 of the battery pack 20 has not been performed, it is determined whether or not the measured voltage value of the voltmeter 212 matches the measured voltage value of the voltmeter 214 ( S16). This process is executed by the function of the connection abnormality determination processing unit 306 of the CPU 300. If it is determined in S16 that the measured voltage value of the voltmeter 212 does not match the measured voltage value of the voltmeter 214, it is determined that there is a connection abnormality in the type determination signal line portions 232 and 234 (S18). . This process is executed by the function of the connection abnormality determination processing unit 306 of the CPU 300. After S18, the process proceeds to S26.

  In S16, when it is determined that the measured voltage value of the voltmeter 212 matches the measured voltage value of the voltmeter 214, the control unit 30 uses the voltage values measured by the voltmeters 212 and 214 of the monitoring unit 210. It is determined whether or not it matches the expected voltage value (S20). This process is executed by the function of the battery misconnection determination processing unit 308 of the CPU 300.

  In S20, if it is determined that the voltage values measured by the voltmeters 212 and 214 of the monitoring unit 210 match the voltage values expected by the control unit 30, the power supply circuit 12 is activated to start the system. (S22). This step is executed by the function of the system activation permission / prohibition processing unit 310 of the CPU 300. Thereafter, the process proceeds to S28.

  In S20, if it is determined that the voltage value measured by the voltmeters 212 and 214 of the monitoring unit 210 does not match the voltage value expected by the control unit 30, the battery pack 20 is attached with the wrong type. It determines with a thing (S24). This process is executed by the function of the battery misconnection determination processing unit 308 of the CPU 300. Thereafter, the process proceeds to S26.

  In S26, starting the system by operating the power supply circuit 12 is prohibited (S26). This step is executed by the function of the system activation permission / prohibition processing unit 310 of the CPU 300. Thereafter, the process proceeds to S28.

  In S28, the storage unit 314 is accessed, and a determination history for grasping that the type determination of the power storage device 220 has been performed is stored in the storage unit 314 (S28). This step is executed by the function of the determination history storage processing unit 312 of the CPU 300. Thereafter, the process proceeds to the END process.

  As described above, according to the configuration of the power storage device type system 10, the user's IG-ON operation is performed with the battery pack 20 replaced with respect to the control unit 30 corresponding to the Li (B) battery standard or the like. If it is made, the type of the battery pack 20 is automatically determined. If the type of the power storage device 220 of the battery pack 20 is not a Li (B) battery, the system activation is prohibited. As a result, the type of the battery pack 20 is automatically classified, and the fail-safe process can be performed when the battery pack 20 is mistakenly connected. Further, even if the control unit 30 is compatible with the standard of the Li (A) battery, etc., the type of the battery pack 20 to be attached is performed, and the fail-safe process is performed when the battery pack 20 is mistakenly connected. Can do.

  As described above, according to the configuration of the power storage device type system 10, if it is determined that the measured voltage value of the voltmeter 212 does not match the measured voltage value of the voltmeter 214, the type determination signal line It is determined that there is a connection abnormality in the parts 232 and 234, and fail-safe processing can be performed.

  Furthermore, as described above, according to the configuration of the power storage device type system 10, when the IG-ON operation is performed after the replacement of the battery pack 20 and the type determination of the battery pack 20 is performed once, the determination history is Saved in the storage unit 314. Therefore, even if the IG-ON operation is performed again thereafter, the type determination of the battery pack 20 is not performed unless the battery pack 20 is newly replaced. As a result, even if both types of signal line portions 232 and 234 for type determination become abnormal due to long-term use of the battery pack 20, the type of the battery pack 20 is erroneously determined. Can be prevented.

In the power storage device type system 10 described above, the type of the power storage device 220 of the battery pack 20 has been described as being a Li (B) battery or a Li (A) battery, but is limited to a lithium ion secondary battery. Alternatively, other secondary batteries, for example, nickel hydride secondary batteries may be used. Further, in the power storage device classification system 10 described above, a value corresponding to the type of each battery pack 20 is set in one type determination signal line portion in order to classify two types of battery packs 20 (in order to detect connection abnormality). In addition, in the power storage device classification system 10, the same value is set for the two type determination signal line units), but in order to classify 2 ⁿ types of battery packs 20, n type determination signal line units are provided. A value corresponding to the type of each battery pack 20 may be set.

  Further, in the power storage device type system 10 described above, whether or not the voltage value measured by the voltmeters 212 and 214 of the monitoring unit 210 matches the voltage value expected by the control unit 30 is determined by the influence of noise or the like. In order to prevent erroneous determination due to the above, it may be determined that the measured voltage value matches only when the measured voltage value matches the expected voltage value a plurality of times (for example, three times).

  8 power supply system, 10 power storage device type system, 12 power supply circuit, 14 motor generator, 20 battery pack, 30 control unit, 210 monitoring unit, 212, 214 voltmeter, 220 power storage device, 221 to 226 terminal set, 228 positive side Terminal, 229 Negative side terminal, 232, 234 Type determination signal line part, 232a to 242a Thermistor element, 232b to 242b Positive side signal line, 232c to 242c Negative side signal line, 232 to 242 Temperature monitoring signal line part, 250 Bus bar module, 260 data signal line unit, 251 to 256 bus bar, 300 CPU, 302 battery replacement acquisition processing unit, 304 determination history confirmation processing unit, 306 connection abnormality determination processing unit, 308 battery misconnection determination processing unit, 310 system activation Permission / prohibition processing section, 312 sizes History storage processing unit, 314 storage unit.

Claims (6)

A state monitoring signal line portion provided in advance for monitoring the state of the power storage device is used as a type determination signal line portion for determining the type of the power storage device, and the value corresponding to the type of the power storage device is for type determination. A battery device unit set to be output from the signal line unit;
A type determination unit for determining the type of the power storage device based on the value output from the signal line unit for type determination of the battery device unit,
An electrical storage device type system comprising: The power storage device type system according to claim 1,
The state monitoring signal line unit includes a state detection element for detecting the state of the power storage device, one side signal line connected to one end of the state detection element and pulled up to a predetermined voltage, and the other of the state detection elements The other side signal line connected to the side and grounded,
Processing is performed so that the one-side signal line and the other-side signal line are short-circuited or opened, and a value corresponding to the type of power storage device is set to be output. A power storage device type system characterized by being used as a type determination signal line unit for determination. The power storage device type system according to claim 1 or 2,
A plurality of state monitoring signal lines are provided,
A power storage device type, wherein a plurality of state monitoring signal line portions are used as a plurality of type determination signal line portions, and the same value is output from the plurality of type determination signal line portions. system. In the power storage device type system according to claim 3,
The type determination unit
A power storage device classification system, wherein when there are different values output from a plurality of type determination signal line units, it is determined that an abnormality exists in the type determination signal line unit. The power storage device type system according to claim 1,
The type determination unit
A control unit that controls the entire system,
The control unit
Allow the system to start when the type of power storage device matches the type of power storage device desired,
A power storage device type system that prohibits activation of a system when the type of power storage device does not match the type of desired power storage device. The power storage device type system according to claim 1,
The type determination unit
A storage unit that stores a determination history when determining the type of power storage device;
A determination execution unit that determines the type of the power storage device when there is no determination history of the power storage device in the storage unit;
A power storage device type system comprising:

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