CN117690329B - Training platform for developing power battery management system and layout method thereof - Google Patents
Training platform for developing power battery management system and layout method thereof Download PDFInfo
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Abstract
The invention discloses a power battery management system development training platform and a layout method thereof, wherein: the layout method for the power battery management system development training platform comprises the following steps: acquiring a functional circuit installation area of a practical training platform; determining a plurality of selected functional circuits according to the functional requirements of the power battery management system; arranging a plurality of functional circuits to different positions of an installable region to obtain a plurality of combination schemes and the number of cables of the plurality of functional circuits corresponding to the combination schemes; and arranging a plurality of functional circuits to positions corresponding to the functional circuit mounting areas according to a combination scheme with the minimum number of cables. The method is used for solving the problem that the whole training platform is complex in arrangement structure due to the fact that a layout functional circuit cannot be reasonably planned.
Description
Technical Field
The invention relates to the technical field of computers, in particular to a training platform for developing a power battery management system and a layout method thereof.
Background
The battery system is the most important component of the new energy pure electric vehicle, and the endurance mileage, the service life and the safety of the battery are the problems which must be considered in the pure electric vehicle. The battery management system can monitor the voltage, current, temperature, high-voltage system insulativity, high-voltage device faults and the like of the battery, can realize battery balancing treatment, and can prevent the battery from being invalid or overheated and burnt due to overcharging and overdischarging of the battery, prevent personnel from electric shock due to high-voltage leakage, prevent the overcurrent and the overdischarge from damaging high-voltage electric equipment and the like through constantly balancing treatment of the battery.
However, at present, the teaching equipment of middle and high school is used for fault diagnosis and detection more, the practical training equipment for the development of the power battery management system is less, different functional circuits are needed to be selected for meeting different functional requirements of the power battery management system, and the design of the conventional practical training platform causes the problem that the overall structure of the practical training platform is complex because the positions of the different functional circuits cannot be reasonably planned, so that the practical training platform is inconvenient to install.
Disclosure of Invention
The invention mainly aims to provide a practical training platform for developing a power battery management system and a layout method thereof, which are used for solving the problem that the whole structure of the practical training platform is complex because a layout functional circuit cannot be reasonably planned.
In order to achieve the above purpose, the invention provides a layout method of a power battery management system development training platform, comprising the following steps:
Acquiring a functional circuit installation area of a practical training platform;
Determining a plurality of selected functional circuits according to the functional requirements of the power battery management system;
arranging a plurality of functional circuits to different positions of an installable region to obtain a plurality of combination schemes and the number of cables of the plurality of functional circuits corresponding to the combination schemes;
And arranging a plurality of functional circuits to positions corresponding to the functional circuit mounting areas according to a combination scheme with the minimum number of cables.
In an embodiment, the acquiring the functional circuit installation area of the training platform includes the following steps:
Acquiring an installable area of a practical training platform;
The method comprises the steps of determining the installation positions of a battery module, a power distribution device and an output end module of a power battery management system in an installable area, and determining the space except the installation positions of the battery module, the power distribution device and the output end module in the installable area of the practical training platform as a functional circuit installation area of the practical training platform.
In one embodiment, the determining the installation positions of the battery module, the power distribution device and the output end module of the power battery management system in the mountable area comprises the following steps:
Calibrating the number of single batteries of the battery module according to the functional requirement of the power battery management system, and performing matrix arrangement on the calibrated number of single batteries to obtain a plurality of battery modules in different combination modes;
Arranging the battery modules in various combination modes at different positions on the side edge of the power distribution device one by one to obtain various different first layout areas;
Acquiring the areas of a plurality of first layout areas, and determining the combination mode of each single battery of the battery module and the relative position of the battery module and the power distribution device according to the first layout area with the smallest area;
And calibrating the position of the first layout area with the smallest area in the mountable area so as to determine the mounting positions of the battery module and the power distribution device in the mountable area.
In one embodiment, the determining the installation positions of the battery module, the power distribution device and the output end module of the power battery management system in the mountable area comprises the following steps:
Calibrating the number of single batteries of the battery module according to the functional requirement of the power battery management system, and performing matrix arrangement on the calibrated number of single batteries to obtain a plurality of battery modules in different combination modes;
Arranging the battery modules in various combination modes at different positions on the side edge of the power distribution device one by one to obtain various different first layout areas;
The method comprises the steps of obtaining the installation position of a control board of a power battery management system and the shape of the control board, comparing a plurality of first layout areas with the shape of the control board one by one, and determining the combination mode of each single battery of a battery module and the relative position of the battery module and a power distribution device according to the first layout area with the highest similarity to the shape of the control board;
And (3) marking the position of a first layout area with highest shape similarity with the control panel in the mountable area so as to determine the mounting positions of the battery module and the power distribution device in the mountable area, and enabling the mounting positions of the battery module and the power distribution device to correspond to the mounting positions of the control panel in the vertical direction of the mountable area of the practical training platform.
In an embodiment, the output end module includes a converter module, a vehicle-mounted charger module, and a load module, and determining the installation positions of the battery module, the power distribution device, and the output end module of the power battery management system in the installable area further includes the following steps:
According to the installation position of the power distribution device in the installable area, the installation positions of the converter module, the vehicle-mounted charger module and the load module are combined and arranged in a mode of being close to the power distribution device, so that different second layout areas are obtained;
acquiring the areas of a plurality of second layout areas, and determining the relative positions of the converter module, the vehicle-mounted charger module and the load module according to the second layout area with the smallest area;
and calibrating the position of the second layout area with the smallest area in the mountable area so as to determine the mounting position of the output end module in the mountable area.
In one embodiment, the determining the plurality of functional circuits according to the functional requirements of the power battery management system includes the following steps:
The method comprises the steps of obtaining a functional circuit, and dividing a plurality of different functional circuits based on a power battery management system into a basic functional circuit and a non-basic functional circuit according to a preset ordering mode;
Selecting basic functional circuits in a plurality of different functional circuits, and selecting at least one non-basic functional circuit according to the functional requirements of the power battery management system; wherein:
The basic functional circuit comprises a voltage temperature detection circuit, an equalization control circuit and an insulation detection circuit;
The non-basic functional circuit comprises at least one of a charge-discharge current monitoring circuit, an alternating-current charging control circuit, an interlocking detection circuit and a high-voltage relay detection and control circuit.
In an embodiment, the arranging the plurality of functional circuits to different positions of the mountable area to obtain a plurality of combination schemes and the number of cables of the plurality of functional circuits corresponding to each combination scheme includes the following steps:
determining a selected functional circuit and acquiring a functional circuit board corresponding to the functional circuit;
Constructing a rectangle according to the installation positions of the battery module, the power distribution device and the output end module, and dividing the functional circuit installation area into a plurality of installation areas along the boundary line of the rectangle;
sequentially arranging the function circuit boards of the selected plurality of function circuits in a plurality of mounting areas according to the sequence from the near to the far of the battery module to obtain a plurality of combination schemes;
and outputting wiring instructions to obtain the circuit network and the cable quantity of various combination schemes.
In an embodiment, the determining the selected functional circuit and obtaining the functional circuit board corresponding to the functional circuit includes the following steps:
Determining a selected functional circuit;
Judging whether an interlocking detection circuit exists in the selected functional circuit or not;
Acquiring a functional circuit board corresponding to each functional circuit when the selected functional circuit has no interlocking detection circuit;
And when the interlock detection circuit exists in the selected functional circuit, determining the installation position of the interlock detection circuit corresponding to the installation position of the power distribution device, and acquiring the functional circuit boards corresponding to the functional circuits except the interlock detection circuit.
In an embodiment, after executing the combination scheme with the minimum number of cables to arrange the plurality of functional circuits to positions corresponding to the functional circuit installation areas, the layout method of the power battery management system development training platform further includes the following steps:
the circuit network according to various combination schemes indexes the cable at the training platform.
A power battery management system development training platform uses the layout method.
Compared with the prior art, the invention has the following beneficial effects:
Acquiring a functional circuit installation area of the practical training platform; determining a plurality of selected functional circuits according to the functional requirements of the power battery management system; arranging a plurality of functional circuits to different positions of an installable region to obtain a plurality of combination schemes and the number of cables of the plurality of functional circuits corresponding to the combination schemes; and arranging the plurality of functional circuits to positions corresponding to the functional circuit mounting areas according to a combination scheme with the minimum number of cables. The method comprises the steps of determining a plurality of selected functional circuits according to the functional requirements of a power battery management system so as to meet different functional requirements of the power battery management system, arranging the functional circuits to positions corresponding to functional circuit installation areas according to a combination scheme with the least number of cables, and reasonably planning the installation positions of all the functional circuits required by layout, so that the production, the assembly and the use are convenient, and the problem that the whole structure of a practical training platform is complex due to the fact that the layout of the functional circuits cannot be reasonably planned is avoided; the whole occupied space can be reduced, and the requirement on the use environment is reduced.
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In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings that are required in the embodiments or the description of the prior art will be briefly described, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and other drawings may be obtained according to the structures shown in these drawings without inventive effort for a person skilled in the art.
FIG. 1 is a flow chart of an embodiment of a layout method for a power battery management system development training platform according to the present invention;
FIG. 2 is a flowchart showing a step S100 according to an embodiment of the present invention;
FIG. 3 is one of the specific flowcharts of step S120 according to an embodiment of the present invention;
FIG. 4 is one of the specific flowcharts of step S120 according to another embodiment of the present invention;
FIG. 5 is a second flowchart of step S120 according to an embodiment of the present invention;
FIG. 6 is a flowchart showing a step S200 according to an embodiment of the present invention;
FIG. 7 is a flowchart showing a step S300 according to an embodiment of the present invention;
FIG. 8 is a flowchart showing a step S310 according to an embodiment of the present invention;
FIG. 9 is a schematic diagram of a training platform for power battery management system development according to an embodiment of the present invention.
Reference numerals illustrate:
The achievement of the objects, functional features and advantages of the present invention will be further described with reference to the accompanying drawings, in conjunction with the embodiments.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and fully with reference to the accompanying drawings, in which it is evident that the embodiments described are only some, but not all embodiments of the invention. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
It should be noted that, if all the directional indicators in the embodiments of the present invention are only used to explain the relative positional relationship, movement conditions, etc. between the components in a specific posture, if the specific posture is changed, the directional indicators are correspondingly changed.
If the description of "first", "second", etc. in this disclosure is for descriptive purposes only, it is not to be construed as indicating or implying a relative importance thereof or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include at least one such feature. If the description of "a and/or B" is referred to in the present invention, it means that either scheme a or scheme B is included, or both scheme a and scheme B are included. In addition, the technical solutions of the embodiments may be combined with each other, but it is necessary to base that the technical solutions can be realized by those skilled in the art, and when the technical solutions are contradictory or cannot be realized, the combination of the technical solutions should be considered to be absent and not within the scope of protection claimed in the present invention.
The battery system is the most important component of the new energy pure electric vehicle, and the endurance mileage, the service life and the safety of the battery are the problems which must be considered in the pure electric vehicle. The battery management system can monitor the voltage, current, temperature, high-voltage system insulativity, high-voltage device faults and the like of the battery, can realize battery balancing treatment, and can prevent the battery from being invalid or overheated and burnt due to overcharging and overdischarging of the battery, prevent personnel from electric shock due to high-voltage leakage, prevent the overcurrent and the overdischarge from damaging high-voltage electric equipment and the like through constantly balancing treatment of the battery.
However, at present, the teaching equipment of middle and high school is used for fault diagnosis and detection more, the practical training equipment for the development of the power battery management system is less, different functional circuits are needed to be selected for meeting different functional requirements of the power battery management system, and the design of the conventional practical training platform causes the problem that the overall structure of the practical training platform is complex because the positions of the different functional circuits cannot be reasonably planned, so that the practical training platform is inconvenient to install.
In order to solve the problem that the prior art cannot reasonably plan and layout functional circuits, which results in complex overall structure of a practical training platform, referring to fig. 1 to 9, the invention provides a practical training platform for developing a power battery management system and a layout method thereof.
Referring to fig. 1, the layout method of the power battery management system development training platform shown in the invention comprises the following steps:
And S100, acquiring a functional circuit installation area of the practical training platform.
It can be appreciated that the training platform is shown to be disposed on a machine 300, and specifically, the volume of the machine 300 can be planned in advance according to different requirements of actual use, and the functional circuit installation area and other installable areas of the machine 300 can be further planned, so as to facilitate planning and layout of the installation positions of the functional circuits.
Step 200, determining a plurality of selected functional circuits according to the functional requirements of the power battery management system.
The selected functional circuit is determined according to the functional requirement of the power battery management system so as to realize the battery equalization processing function of the power battery management system, and realize any one or more functions of monitoring battery voltage, current, temperature, high-voltage system insulativity, high-voltage device faults and the like, thereby meeting the different functional requirements of the power battery management system.
And step S300, arranging a plurality of functional circuits to different positions of the mountable area to obtain a plurality of combination schemes and the number of cables of the plurality of functional circuits corresponding to each combination scheme.
In the embodiment of the application, each required functional circuit is subjected to modularized design by modularized teaching, the related functions of the power battery management system development training platform are realized by a centralized management mode, a plurality of functional circuits are distributed to different positions of an installable area, and therefore, a plurality of combination schemes for distributing the functional circuits at different positions of the installable area and the number of cables required by circuits corresponding to the combination schemes can be obtained.
And S400, arranging a plurality of functional circuits to positions corresponding to the functional circuit mounting areas according to a combination scheme with the least number of cables.
Under the condition of determining the functional circuit installation area, a plurality of required functional circuits are arranged at different positions of the installable area, so that a plurality of combination schemes for arranging different functional circuits at different positions of the installable area are obtained, and the installation positions of all the functional circuits required by the reasonable planning layout are conveniently produced, assembled and used by further acquiring the circuit networks and the number of cables corresponding to the plurality of combination schemes. The simpler the circuit network is, the fewer the number of cables is, the layout scheme of the functional circuit is further simplified by selecting the combination scheme with the least number of cables, the problem that the whole structure of the practical training platform is complex due to the fact that the functional circuit cannot be reasonably planned is avoided, and the functional circuits are conveniently laid out and installed. According to the combination scheme with the minimum number of cables, the functional circuits are arranged at the positions corresponding to the functional circuit installation areas, so that the whole occupied space of the power battery management system development training platform can be reduced, and the requirement on the use environment is lowered.
Referring to fig. 2, in an embodiment, step S100, acquiring a functional circuit installation area of the training platform includes the following steps:
Step S110, acquiring an installable area of the practical training platform;
And step S120, determining the installation positions of the battery module, the power distribution device and the output end module of the power battery management system in the installable area, and determining the space except the installation positions of the battery module, the power distribution device and the output end module in the installable area of the practical training platform as the functional circuit installation area of the practical training platform.
Optionally, when the development training platform of the power battery management system is provided on a machine, an installable area for installing the battery module 110, the distribution device 120, the output end module 130, and other functional circuits of the power battery management system, the voltage temperature detection circuit, the equalization control circuit, the insulation detection circuit, and other functional circuits can be specifically planned on the table surface of the machine. In some examples of the present application, an installable area of the training platform may be specifically planned in a middle position of a machine table, and an installation position of the battery module 110, the power distribution device 120, the output end module 130, etc. of the power battery management system may be planned in a position where the installable area is close to a front side of the machine or a middle of the machine, and then an installation position of each functional circuit may be further planned in a space where the battery module 110, the power distribution device 120, the output end module 130, etc. of the power battery management system are installed in the installable area. So set up, can improve the utilization to the space of board to through reducing the occupation space of battery module 110, distribution device 120, output module 130 and each functional module of power battery management system, further reduce the occupation space of real standard platform, through the position of each constitution structure of rational planning power battery management system, still can make things convenient for follow-up overall arrangement installation, improve production packaging efficiency, and reduction in production cost.
The power battery management system comprises a control module, wherein the control module comprises a processor, such as a CPU, a memory, a communication module and the like, and a related control circuit, the control module is arranged on an upper computer and is connected with a battery module 110, a power distribution device 120, an output end module 130 and the like of the power battery management system, communication with each functional circuit is realized through the CAN communication module, data are concentrated, the functions of driving load and integral fault detection and alarm are realized, and information such as voltage, battery electric quantity, current, insulation resistance, each relay state, interlocking state, fault information and the like detected by each functional circuit is displayed on a display device such as an upper computer display screen 140 through messages, so that data CAN be conveniently checked, faults CAN be conveniently found, and related functions of the power battery management system are realized.
The layout method of the development training platform of the power battery management system can complete the layout of the control module after completing the layout of the installation positions of the battery module 110, the power distribution device 120 and the output end module 130; or the installation position of the layout control module in the course of completing the layout of the battery module 110, the distribution device 120, and the output terminal module 130; after the layout of the mounting positions of the functional circuits is completed, the layout of the control module may be completed. Specifically, in the implementation step S120, the installation positions of the control modules may be laid out in the process of determining the installation positions of the battery module, the power distribution device, and the output terminal module of the power battery management system in the installable area.
According to the application, the residual capacity of the battery is reflected through SOC (State of Charge), the SOC value is defined as the ratio of the residual capacity to the battery capacity, the value range is 0-1, the battery is completely discharged when SOC=0, and the battery is completely full when SOC=1. Existing power battery management systems typically divide the range from 0 to 1 to make simple power predictions. But this method is relatively error-prone. In order to reduce possible errors in the prior art, the application calculates the SOC by adopting an ampere-hour integration method and an open-circuit voltage method, and the battery module comprises a plurality of single batteries. The power battery management system disclosed by the application needs to ensure room temperature test in the test process so as to reduce the influence of temperature on the battery. Specifically, the electric quantity of the battery module 110 and the electric quantity of each single battery can be calibrated according to the functional requirement of the power battery management system, and the number of the single batteries can be further calibrated. Typically, the voltage range for each cell is calibrated to be 2800mV to 4200mV. In the test process, the single battery discharges the voltage to a preset first voltage (such as 2V or other preset voltage values) with a current of 1C, and stands for 30min; then charging to a preset second voltage (such as 3.65V or other preset voltage value) with 1C current, turning to constant voltage charging, stopping charging when the charging current is reduced to a preset current (such as 2.6A or other preset current value), and standing for 30min after charging; and then discharging with a current of 1C, discharging 5% of electricity every time, standing for 1h, recording voltage data after standing, repeating 10 times or other preset times, and recording the charge and discharge process of the power battery management system and related test data in the charge and discharge process.
As an alternative embodiment of the present application, referring to fig. 3, step S120 of determining the installation positions of the battery module, the power distribution device, and the output terminal module of the power battery management system in the installable area includes the steps of:
step S1211, calibrating the number of the single batteries of the battery module according to the functional requirement of the power battery management system, and performing matrix arrangement on the calibrated number of the single batteries to obtain a plurality of battery modules in different combination modes.
The number of the single batteries is calibrated according to the functional requirement of the power battery management system, the single batteries with the calibrated number are arranged in a matrix, various battery modules with different combination modes are obtained by changing the number of the single batteries with the horizontal rows and the vertical rows, the lengths and the widths of the appearance of the rectangular various battery modules constructed in different combination modes are also different, and therefore various battery modules with different appearance sizes can be obtained. Specifically, the unit cells of the battery module can adopt blade cells, 15 or other unit cells, and the unit cells are arranged in a matrix and are combined and fixed after spot welding to form the battery module or other battery modules with rated voltage of 48V.
Step S1212, arranging the battery modules in various combination modes at different positions on the side edge of the power distribution device one by one to obtain various first layout areas.
The obtained multiple different first layout areas are used for delineating the installation areas of the battery module 110 and the power distribution device 120, the battery module 110 is arranged on the side edge of the power distribution device 120, and the battery module 110 and the power distribution device 120 are adjacently arranged so as to further reduce the number of cables and the length of the cables.
Step S1213, obtaining the areas of the plurality of first layout areas, and determining the combination mode of each single battery of the battery module and the relative position of the battery module and the power distribution device according to the first layout area with the smallest area.
The areas of the obtained multiple first layout areas are compared, and the first layout area with the smallest area is selected, so that the occupied space of the battery module and the power distribution device is reduced, and the positions of all functional circuits can be conveniently planned further.
Step S1214, calibrating the position of the first layout area with the smallest area in the mountable area so as to determine the mounting positions of the battery module and the power distribution device in the mountable area.
On the basis of this example, after the above-described step S1214 is performed, the following steps are further included: corresponding to the installation positions of the battery module and the power distribution device in the installable area, the control module is arranged in the installable area, so that the installation position of the control module corresponds to the installation position of the battery module and the power distribution device in the installable area in the vertical direction of the installable area of the training platform.
Specifically, the training platform shown in the application is optionally arranged on a machine platform, and the battery module and the power distribution device can be arranged on the table top of the machine platform, and a mounting groove or other mounting positions are arranged in the machine platform corresponding to the mounting positions of the battery module and the power distribution device in the mountable area so as to position and mount the control module. The installation position of the control module is set at the installation position of the mountable area corresponding to the battery module and the power distribution device, so that the occupied space of the control module can be reduced, the occupied space of the practical training platform can be further reduced, the length of connecting cables between the control module and the battery module, between the control module and the power distribution device and the use quantity of connecting cables of other functional circuits can be reduced, and the follow-up layout installation is convenient.
In the present application, the control module may be, but not limited to, enclosed in a control box or provided on a control board. Taking the control module provided on the control board as an example, referring to fig. 4 as another alternative embodiment of the present application, in one embodiment, the determining the installation positions of the battery module, the power distribution device, and the output end module of the power battery management system in the mountable area in step S120 includes the following steps:
Step S1221, calibrating the number of single batteries of the battery module according to the functional requirement of the power battery management system, and performing matrix arrangement on the calibrated number of single batteries to obtain a plurality of battery modules in different combination modes;
Step S1222, arranging the battery modules in various combination modes at different positions on the side edge of the power distribution device one by one to obtain various different first layout areas;
step S1223, obtaining the installation position of a control board and the shape of the control board of the power battery management system, comparing a plurality of first layout areas with the shape of the control board one by one, and determining the combination mode of each single battery of the battery module and the relative position of the battery module and the power distribution device according to the first layout area with the highest similarity to the shape of the control board;
And S1224, marking the position of a first layout area with the highest shape similarity with the control panel in the mountable area to determine the mounting positions of the battery module and the power distribution device in the mountable area, so that the mounting positions of the battery module and the power distribution device correspond to the mounting positions of the control panel in the vertical direction of the mountable area of the practical training platform.
In this example, the combination mode of each unit cell of the battery module and the relative position of the battery module and the power distribution device are determined according to the first layout area with the highest shape similarity to the control board, so that the combination mode of each unit cell of the battery module and the installation position of the battery module and the power distribution device are further determined after the installation position of the control board is determined, and specifically, one of the plurality of first layout areas with the aspect ratio closest to the aspect ratio of the control board can be determined as the first layout board with the highest shape similarity to the control board. The first layout area with the highest shape similarity with the control panel is selected to determine the relative positions of the battery module 110 and the power distribution device 120, so that the positions of the functional circuits can be conveniently planned further, the installation positions of the battery module and the power distribution device in the installable area are ensured to correspond to the control panel, the occupied area of the battery module 110 and the power distribution device 120 is reduced, and the length of connecting cables of the control panel and the battery module 110, the power distribution device 120 and other functional circuits and the use quantity of the connecting cables can be reduced, so that the subsequent layout installation is facilitated.
The specific embodiments of step S1221 and step S1222 refer to the above-mentioned step S1211 and step S1212, and are not described herein.
Referring to fig. 5, in an embodiment, the output module 130 includes a converter module 131 such as a DC-DC converter, an on-board charger module 132, and a load module 133, where the load module may specifically use a permanent magnet rotor motor as a load tool, and step S120 of determining an installation position of the battery module, the power distribution device, and the output module of the power battery management system in the installable area further includes the following steps:
And step S123, according to the installation position of the power distribution device in the installable area, the installation positions of the converter module, the vehicle-mounted charger module and the load module are combined and arranged in a mode of being close to the power distribution device, so that different second layout areas are obtained.
The obtained multiple second layout areas are used for delineating the installation areas of the converter module 131, the vehicle-mounted charger module 132 and the load module 133, so that the installation positions of the converter module, the vehicle-mounted charger module and the load module are combined and arranged in a mode of being close to the distribution device, and the length of the connecting cables and the use quantity of the connecting cables can be further reduced.
And S124, acquiring the areas of various second layout areas, and determining the relative positions of the converter module, the vehicle-mounted charger module and the load module according to the second layout area with the smallest area.
By comparing the areas of the obtained multiple second layout areas and selecting the second layout area with the smallest area, the occupied space of the output end modules 130 such as the converter module 131, the vehicle-mounted charger module 132, the load module 133 and the like can be reduced, so that the positions of the functional circuits can be conveniently planned further.
And S125, calibrating the position of the second layout area with the smallest area in the mountable area so as to determine the mounting position of the output end module in the mountable area.
After the installation positions of the battery module and the power distribution device in the installable area and the installation positions of the control module in the machine are determined through the steps S1211 to S1214 or the steps S1221 to S1224, the installation positions of the output end modules such as the converter module 131, the vehicle-mounted charger module 132 and the load module 133 in the installable area are further determined through the steps S123 to S125, so that the positions of the functional circuits can be further planned.
Referring to fig. 6, in an embodiment, step S200, determining a plurality of selected functional circuits according to the functional requirement of the power battery management system includes the following steps:
step S210, acquiring functional circuits, and dividing a plurality of different functional circuits based on a power battery management system into basic functional circuits and non-basic functional circuits according to a preset ordering mode;
Step S220, selecting a basic functional circuit in a plurality of different functional circuits, and selecting at least one non-basic functional circuit according to the functional requirements of the power battery management system; wherein:
The basic functional circuit comprises a voltage temperature detection circuit, an equalization control circuit and an insulation detection circuit;
the non-basic functional circuit comprises at least one of a charge-discharge current monitoring circuit, an alternating current charging control circuit, an interlocking detection circuit and a high-voltage relay detection and control circuit.
The functional circuits shown herein include, but are not limited to, a voltage temperature detection circuit 211, an equalization control circuit 212, an insulation detection circuit 213, a charge-discharge current monitoring circuit 221, an ac charge control circuit 222, an interlock detection circuit, a high-voltage relay detection and control circuit 223, and are configured to implement a battery equalization processing function of the power battery management system according to the functional requirements and teaching requirements of the power battery system, and to implement any one or more functions of monitoring the voltage, current, temperature, insulation of the high-voltage system, malfunction of the high-voltage device, etc., so as to satisfy different functional requirements of the power battery management system. The voltage temperature detection circuit 211 uses a control chip to sample the cell voltage and temperature of the battery module, and uses the upper computer software to display the data of the voltage, temperature, highest voltage, lowest voltage, cell voltage difference SOC, SOH, charge and discharge state and the like of each cell on line in real time. The equalization control circuit 212 is used for performing equalization processing on the battery, and for convenience in control, relay control is adopted, in addition, an indicator light can be further arranged corresponding to each single battery respectively, when equalization is performed on a certain single battery, the relay is controlled to be attracted, and meanwhile the corresponding indicator light is controlled to be turned on, so that students can observe and know the passive equalization principle and control mode conveniently. For convenient implementation and teaching use, the insulation detection circuit 213 adopts a ground insulation detection method, the insulation detection circuit comprises a plurality of fixed-value resistors forming an insulation detection loop with the battery module, and the ground resistance of the anode and the cathode of the battery module is calculated by switching on or off one or more of the fixed-value resistors. The charge-discharge current monitoring circuit 221 is used for current sampling, and specifically can display a current signal through a nixie tube or other display devices. The ac charging control circuit 222 mainly has a communication function and a CC/CP signal detection function, wherein the CC/CP signal detection function is implemented by adopting a PWM and hardware lap joint manner. The interlocking detection circuit adopts a PWM generator, and realizes a loop by outputting a pulse square wave signal and withdrawing the pulse square wave signal. The relay control of the high-voltage relay detection and control circuit 223 is divided into a low-side control mode and a high-side control mode, so that a learner can learn the principles of the two control modes conveniently, and the two control modes are realized by controlling the on-off of the MOS tube through PWM pulse and simultaneously controlling the on-off of the relay.
In the embodiment of the application, a plurality of different functional circuits based on the power battery management system are divided into basic functional circuits and non-basic functional circuits according to a preset ordering mode, mainly, according to actual teaching arrangement, the most commonly used circuits are used as basic functional circuits, and the less commonly used functional circuits are used as non-basic functional circuits, so that the modularized design is realized. When the functional circuit required by the power battery management system is designed, the basic functional circuit can be directly selected, and at least one of a plurality of non-basic functional circuits can be selected according to actual requirements. The modularized design is carried out on each functional circuit, and the module teaching is carried out, so that the development teaching difficulty of a battery management system can be reduced, the detection data and fault conditions can be conveniently checked, and the troubleshooting and the teaching are convenient; by the arrangement, the step of selecting the functional circuits can be reduced, and the position of each functional circuit can be conveniently planned by subsequent layout. It should be noted that, the functional circuits are divided into basic functional circuits and non-basic functional circuits, or the functional circuits used in the teaching process are ordered according to the course difficulty requirement, the functional circuits relatively easy to master are divided into basic functional circuits, and the functional circuits relatively difficult to master are divided into non-basic functional circuits; or sequencing the used functional circuits according to the teaching sequence, dividing the functional circuits which are relatively firstly taught and required to be mastered into basic functional circuits, and dividing the functional circuits which are relatively later taught and required to be mastered into non-basic functional circuits; specifically, the method may be set according to the actual situation, and will not be described in detail herein.
Referring to fig. 7, in an embodiment, step S300, arranging a plurality of functional circuits at different positions of an installable area to obtain a plurality of combination schemes and the number of cables corresponding to each combination scheme by the plurality of functional circuits includes the following steps:
Step S310, determining the selected functional circuit and acquiring a functional circuit board corresponding to the functional circuit.
In the application, a plurality of functional circuits are preset corresponding to different circuit functions to be realized, the functional circuits are arranged on the corresponding functional circuit boards, the sizes of the functional circuit boards are correspondingly set, in addition, the types, the numbers and the like of electric elements used by the functional circuits can be changed according to different practical requirements so as to realize modularized design, thus being convenient for the management realization of a power battery management system development training platform, ensuring the safety of batteries and prolonging the sequential service life of the batteries
And step S320, constructing a rectangle according to the installation positions of the battery module, the power distribution device and the output terminal module, and dividing the functional circuit installation area into a plurality of installation areas along the boundary line of the rectangle. The rectangular is constructed according to the installation positions of the battery module, the power distribution device and the output end module, and the installation areas of the battery module, the power distribution device and the output end module can be further defined. Specifically, the rectangle may be set in the middle, upper and other positions of the mountable area according to the number and size of the functional circuit boards, so that the boundary line of the rectangle and the boundary line of the mountable area at least partially overlap.
Step S330, arranging the function circuit boards of the selected plurality of function circuits in the plurality of mounting areas in sequence from near to far according to the sequence from the battery module to obtain a plurality of combination schemes. Taking the middle part of the rectangular mountable area as an example, when the battery module is formed on the left side of the rectangle, the left side of the rectangle is taken as a starting position, and the positions of all the functional circuit boards are sequentially planned until the layout of all the functional circuit boards is completed; specifically, the method may be set according to the actual situation, and will not be described in detail herein. The functional circuit boards of the selected functional circuits are sequentially arranged in the mounting areas according to the sequence from the near to the far of the battery module, and the length of the connecting cables and the use quantity of the connecting cables can be further reduced.
Step S340, outputting a wiring instruction to acquire the circuit network and the cable quantity of various combination schemes.
Under the condition of reducing the cable length as much as possible, the mounting positions of the battery module, the power distribution device and the output end module are defined through the constructed rectangle, a plurality of mounting areas for mounting a plurality of required functional circuit boards are divided in the functional circuit mounting area along the boundary line of the rectangle, wiring instructions are output in an upper computer program, and the circuit network and the number of cables corresponding to a plurality of combination schemes are obtained, so that the combination scheme with simple circuit network and less number of cables is selected. The combination scheme with the small number of cables is relatively simpler in circuit network, step S400 is executed after step S340 is executed, the combination scheme with the minimum number of cables is selected, and a plurality of functional circuits are arranged to the positions corresponding to the functional circuit installation areas according to the combination scheme with the minimum number of cables, so that the subsequent production, assembly and use can be facilitated, the production and assembly efficiency is improved, and the production cost is reduced.
The number of the positioning grooves, the positions of the positioning grooves and the sizes of the positioning grooves can be planned on the table top of the machine table according to the determined first layout area, the second layout area and the installation positions and sizes of the functional circuit boards, so that the components of the power battery management system such as the functional circuit boards and the battery modules are connected and fixed in the corresponding positioning grooves in a threaded connection, welding, bonding and other modes, and the components of the power battery management system are positioned and installed. In order to facilitate the detection and the check of the operation process of students, the positioning grooves can be encapsulated by acrylic glass, so that the power battery management system can be protected while the teaching detection check is facilitated.
Referring to fig. 8, in an embodiment, step S310, determining a selected functional circuit, and obtaining a functional circuit board corresponding to the functional circuit includes the following steps:
Step S311, determining a selected functional circuit;
Step S312, judging whether an interlocking detection circuit exists in the selected functional circuit;
Step S313, when the selected functional circuit has no interlocking detection circuit, acquiring a functional circuit board corresponding to each functional circuit;
and step S314, when the interlock detection circuit exists in the selected functional circuit, determining the installation position of the interlock detection circuit corresponding to the installation position of the power distribution device, and acquiring the functional circuit boards corresponding to the functional circuits except the interlock detection circuit.
When the interlock detection circuit is not arranged in the selected functional circuit, the positions of the functional circuit boards are directly set through the steps S320 to S340; when the interlock detection circuit is arranged in the selected functional circuit, the positions of other functional circuit boards are set through the steps S320 to S340 after the installation positions of the interlock detection circuits are determined corresponding to the installation positions of the power distribution device, so that the high-voltage interlock function is conveniently realized, and the use of cables is reduced.
In an embodiment, after executing step S400 to arrange the plurality of functional circuits to positions corresponding to the functional circuit installation areas according to the combination scheme with the minimum number of cables, the layout method for the power battery management system development training platform further includes the following steps:
and S500, the circuit network according to various combination schemes marks the cable on the practical training platform.
In this way, a power battery management system development training platform as shown in fig. 9 can be obtained. The cable is calibrated on the table surface of the machine table 300 of the practical training platform, the connection of different functional circuits, a power distribution device, an output end module and the like can be realized, the connection relation of each component part of the power battery management system is intuitively displayed, and the teaching is convenient. In addition, a base, rollers and other connection structures can be arranged at the bottom of the machine 300, so that the transfer and transportation are convenient.
Referring to fig. 9, the present application further provides a power battery management system development training platform, and the power battery management system development training platform shown in the present application uses the layout method as described above, so at least has all the beneficial effects brought by the technical solutions of the foregoing embodiments, and therefore will not be described in detail herein.
The foregoing description is only of the optional embodiments of the present invention, and is not intended to limit the scope of the invention, and all the equivalent structural changes made by the description of the present invention and the accompanying drawings or the direct/indirect application in other related technical fields are included in the scope of the invention.
Claims (7)
1. The layout method of the power battery management system development training platform is characterized by comprising the following steps of:
Acquiring a functional circuit installation area of a practical training platform;
Determining a plurality of selected functional circuits according to the functional requirements of the power battery management system;
arranging a plurality of functional circuits to different positions of an installable region to obtain a plurality of combination schemes and the number of cables of the plurality of functional circuits corresponding to the combination schemes;
arranging a plurality of functional circuits to positions corresponding to the functional circuit mounting areas according to a combination scheme with the minimum number of cables;
the method for acquiring the functional circuit installation area of the training platform comprises the following steps:
Acquiring an installable area of a practical training platform;
Determining the installation positions of a battery module, a power distribution device and an output end module of the power battery management system in an installable area, and determining the space except the installation positions of the battery module, the power distribution device and the output end module in the installable area of the practical training platform as a functional circuit installation area of the practical training platform;
The method for determining the mounting positions of the battery module, the power distribution device and the output end module of the power battery management system in the mountable area comprises the following steps:
Calibrating the number of single batteries of the battery module according to the functional requirement of the power battery management system, and performing matrix arrangement on the calibrated number of single batteries to obtain a plurality of battery modules in different combination modes;
Arranging the battery modules in various combination modes at different positions on the side edge of the power distribution device one by one to obtain various different first layout areas;
Acquiring the areas of a plurality of first layout areas, and determining the combination mode of each single battery of the battery module and the relative position of the battery module and the power distribution device according to the first layout area with the smallest area; calibrating the position of a first layout area with the smallest area in the mountable area so as to determine the mounting positions of the battery module and the power distribution device in the mountable area;
Or the installation position of a control board of the power battery management system and the shape of the control board are obtained, a plurality of first layout areas are compared with the shape of the control board one by one, and the combination mode of each single battery of the battery module and the relative position of the battery module and the power distribution device are determined according to the first layout area with the highest similarity to the shape of the control board; and (3) marking the position of a first layout area with highest shape similarity with the control panel in the mountable area so as to determine the mounting positions of the battery module and the power distribution device in the mountable area, and enabling the mounting positions of the battery module and the power distribution device to correspond to the mounting positions of the control panel in the vertical direction of the mountable area of the practical training platform.
2. The layout method of a power battery management system development training platform according to claim 1, wherein the output end module comprises a converter module, a vehicle-mounted charger module and a load module, and the determining the installation positions of the battery module, the power distribution device and the output end module of the power battery management system in the installable area further comprises the following steps:
According to the installation position of the power distribution device in the installable area, the installation positions of the converter module, the vehicle-mounted charger module and the load module are combined and arranged in a mode of being close to the power distribution device, so that different second layout areas are obtained;
acquiring the areas of a plurality of second layout areas, and determining the relative positions of the converter module, the vehicle-mounted charger module and the load module according to the second layout area with the smallest area;
and calibrating the position of the second layout area with the smallest area in the mountable area so as to determine the mounting position of the output end module in the mountable area.
3. The layout method of a power battery management system development training platform according to claim 1, wherein the determining the selected plurality of functional circuits according to the functional requirements of the power battery management system comprises the following steps:
The method comprises the steps of obtaining a functional circuit, and dividing a plurality of different functional circuits based on a power battery management system into a basic functional circuit and a non-basic functional circuit according to a preset ordering mode;
Selecting basic functional circuits in a plurality of different functional circuits, and selecting at least one non-basic functional circuit according to the functional requirements of the power battery management system; wherein:
The basic functional circuit comprises a voltage temperature detection circuit, an equalization control circuit and an insulation detection circuit;
The non-basic functional circuit comprises at least one of a charge-discharge current monitoring circuit, an alternating-current charging control circuit, an interlocking detection circuit and a high-voltage relay detection and control circuit.
4. The layout method of a power battery management system development training platform according to claim 3, wherein the step of arranging the plurality of functional circuits to different positions of the mountable area to obtain a plurality of combination schemes and the number of cables of the plurality of functional circuits corresponding to each combination scheme includes the steps of:
determining a selected functional circuit and acquiring a functional circuit board corresponding to the functional circuit;
Constructing a rectangle according to the installation positions of the battery module, the power distribution device and the output end module, and dividing the functional circuit installation area into a plurality of installation areas along the boundary line of the rectangle;
sequentially arranging the function circuit boards of the selected plurality of function circuits in a plurality of mounting areas according to the sequence from the near to the far of the battery module to obtain a plurality of combination schemes;
and outputting wiring instructions to obtain the circuit network and the cable quantity of various combination schemes.
5. The layout method of a power battery management system development training platform according to claim 4, wherein the determining the selected functional circuit and obtaining the functional circuit board corresponding to the functional circuit comprises the following steps:
Determining a selected functional circuit;
Judging whether an interlocking detection circuit exists in the selected functional circuit or not;
Acquiring a functional circuit board corresponding to each functional circuit when the selected functional circuit has no interlocking detection circuit;
And when the interlock detection circuit exists in the selected functional circuit, determining the installation position of the interlock detection circuit corresponding to the installation position of the power distribution device, and acquiring the functional circuit boards corresponding to the functional circuits except the interlock detection circuit.
6. The layout method of a power battery management system development training platform according to claim 1, wherein after the step of arranging the plurality of functional circuits to positions corresponding to the functional circuit mounting areas according to the combination scheme with the minimum number of cables is performed, the layout method of a power battery management system development training platform further comprises the steps of:
the circuit network according to various combination schemes indexes the cable at the training platform.
7. A power battery management system development training platform, characterized in that the layout method according to any one of claims 1-6 is used.
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