CN213150042U - Electric motor car power battery PACK dress accent teaching platform - Google Patents
Electric motor car power battery PACK dress accent teaching platform Download PDFInfo
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- CN213150042U CN213150042U CN202021197785.3U CN202021197785U CN213150042U CN 213150042 U CN213150042 U CN 213150042U CN 202021197785 U CN202021197785 U CN 202021197785U CN 213150042 U CN213150042 U CN 213150042U
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- 230000002452 interceptive effect Effects 0.000 claims abstract description 32
- 238000003745 diagnosis Methods 0.000 claims abstract description 31
- 238000000034 method Methods 0.000 claims abstract description 17
- 238000004088 simulation Methods 0.000 claims abstract description 7
- 238000009434 installation Methods 0.000 claims description 34
- 238000012360 testing method Methods 0.000 claims description 19
- 238000004891 communication Methods 0.000 claims description 6
- 238000007599 discharging Methods 0.000 claims description 6
- 238000006243 chemical reaction Methods 0.000 claims description 3
- 238000001514 detection method Methods 0.000 abstract description 10
- 238000013024 troubleshooting Methods 0.000 abstract description 2
- 238000007726 management method Methods 0.000 description 22
- GELKBWJHTRAYNV-UHFFFAOYSA-K lithium iron phosphate Chemical compound [Li+].[Fe+2].[O-]P([O-])([O-])=O GELKBWJHTRAYNV-UHFFFAOYSA-K 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- 230000001755 vocal effect Effects 0.000 description 3
- 238000005034 decoration Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000012216 screening Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 239000008358 core component Substances 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000004927 fusion Effects 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 239000000178 monomer Substances 0.000 description 1
- 238000005070 sampling Methods 0.000 description 1
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Abstract
The utility model discloses an electric motor car power battery PACK debug teaching platform, including simulation charge-discharge module, mutual show module and the fault diagnosis module that is used for simulating electric motor car power battery charge-discharge process, can realize power battery PACK's equipment and debugging and fault setting and fault detection, provide convenience for electric motor car power battery PACK debug teaching. This teaching platform adopts the simulation charge-discharge module, compares in the high voltage power supply on the real car, and its output voltage does not exceed 80V, has improved the teaching security. Through the interactive touch screen, not only can teaching courseware be shown for theoretical study, but also fault troubleshooting can be carried out by combining a fault diagnosis module after a fault is set, and the actual operation capacity of students is improved.
Description
Technical Field
The utility model relates to an electric motor car battery teaching technical field especially relates to an electric motor car power battery PACK dress transfers teaching platform.
Background
Energy-saving and new energy automobiles are listed as key development fields in the Chinese manufacture 2025, and the strong country of automobiles is formally promoted as a national strategy. The new energy automobile is an important breakthrough in transformation and upgrading of the national automobile industry, and a great deal of composite high-skill talents for mastering key technologies of the new energy automobile are needed.
The power battery is used as a core component of a new energy automobile, and the PACK installation and debugging test of the power battery becomes a core technical skill which must be mastered by a practitioner, so that the gap of talents in the field is huge at present. In order to adapt to industrial upgrading under the intelligent manufacturing background of China, qualified power battery PACK installation and debugging test high-skill talents are cultured, and smooth implementation of automobile vocational education and education fusion is promoted.
At present, a test teaching platform for power battery PACK installation and debugging does not exist in China, and demonstration teaching needs to be performed on an electric vehicle entity in the teaching process. On the one hand, teaching cost is higher and be not convenient for observe, and on the other hand, pure electric vehicle power battery generally adopts and exceeds the high-pressure power supply more than 300V, has the potential safety hazard in the teaching use.
The utility model discloses an electric motor car power battery debug and test teaching platform, helping hand vocational colleges and universities technical skill talent training. The utility model discloses can regard as new energy automobile host computer factory power battery PACK debug test and the relevant specialty teaching of vocational colleges and universities to use.
Disclosure of Invention
The utility model aims at providing an electric motor car power battery PACK debug teaching platform to the defect that the real car demonstration is not convenient for observe and high voltage supply has the potential safety hazard among the prior art.
For realizing the utility model discloses a technical scheme that the purpose adopted is:
the utility model provides an electric motor car power battery PACK dress accent teaching platform, includes:
the simulation charge-discharge module is used for simulating the charge-discharge process of the power battery of the electric vehicle;
the analog charge-discharge module comprises a power battery PACK adjusting unit, an on-board charger for charging the battery PACK adjusting unit and a load for consuming the electric quantity of the power battery PACK adjusting unit;
power battery PACK installation and adjustment unit includes: the battery PACK testing system comprises a power battery, a BMS battery management system, a BMS acquisition board, a temperature sensor, a current sensor and a line controller, wherein the power battery consists of a plurality of single batteries and a PACK frame used for installing the single batteries; the BMS acquisition board is electrically connected with each single battery so as to acquire the voltage of each single battery and transmit the voltage to the BMS battery management system; the circuit controller is connected with a switch unit for controlling the on-off state of each single battery, the temperature sensor and the current sensor circuit; the BMS battery management system controls the charging and discharging process of the power battery through a contactor group, monitors the state parameters of the PACK assembly and adjustment unit of the power battery in real time, and transmits the state parameters to the interactive display module and the fault diagnosis module;
the interactive display module receives and displays the state parameters; and/or the interactive display module performs fault setting and feeds back the fault setting to the BMS battery management system;
and the fault diagnosis module receives the state parameters and converts the state parameters into electric signals for students to detect and diagnose.
In the technical scheme, the BMS battery management system is in communication connection with the interactive display module through a data line;
and the data line is connected with a signal transmitter, and the signal transmitter is connected with the fault diagnosis module through WIFI wireless communication.
In the above technical solution, the contactor group includes a pre-charging contactor, a main positive contactor, a main negative contactor, and a charging contactor;
during charging, the charging contactor and the main negative contactor are closed first, and the main positive contactor is closed again;
during discharging, the pre-charging contactor and the main negative contactor are closed first, and the main positive contactor is closed again.
In the above technical solution, the state parameters include: the voltage and the electric quantity of each single battery, the voltage of the power battery, the voltage of a current sensor, the voltage of a temperature sensor, the high line voltage of a CAN line, the low line voltage of the CAN line, the temperature information of a test unit, the current information of the power battery and the working states of a main positive contactor, a main negative contactor, a charging contactor and a pre-charging contactor.
In the above technical solution, the interactive display module is an interactive touch screen.
In the technical scheme, the fault diagnosis module comprises four fault diagnosis boxes, an analog signal generator is integrated in each fault diagnosis box, and the analog signal generator receives the state parameters and converts the state parameters into electric signals for students to detect and diagnose.
In the above technical solution, each of the fault diagnosis boxes includes a plurality of test terminals for testing the status parameters.
In the technical scheme, a high-voltage distributing box is arranged between the power battery PACK adjusting unit and the load, one output port of the high-voltage distributing box is connected with the load, and the other output port supplies power to the battery PACK adjusting unit after DC/DC conversion.
In the technical scheme, the mobile phone further comprises a rack, wherein a slow charging interface for charging the battery PACK adjusting unit and a 220V alternating current port for supplying power to the vehicle-mounted charger and the interactive touch screen are arranged on the rack.
The teaching method of the electric vehicle power battery PACK installation and adjustment teaching platform,
the assembling and debugging method of the power battery PACK comprises the following steps:
step 1: calibrating internal resistance of all single batteries by using an internal resistance detector, and mounting the single batteries with the same internal resistance on a PACK frame to form a power battery;
step 2: the vehicle-mounted charger charges the power battery PACK installation and adjustment unit, and the power battery PACK installation and adjustment unit monitors the state parameters of the power battery PACK installation and adjustment unit in real time and transmits the state parameters to the interactive display module and the fault detection module;
and step 3: the interactive display module receives and displays the state parameters;
and 4, step 4: the single batteries with consistent screening voltage and battery capacity are judged by observing the state parameters of the power battery PACK installation and adjustment unit displayed by the interactive display module or the state parameters detected by the fault detection module, and the sorting and capacity grading of the single batteries are completed;
the fault setting and fault detection method comprises the following steps:
step a: fault setting is carried out through the interactive display module, and fault setting information is fed back to the BMS battery management system, wherein the fault setting information comprises a fault setting point and line states, and the line states comprise short circuit, open circuit and virtual connection;
step b: the BMS battery management system actually controls the line state of the fault setting point through a line controller according to the fault setting information and sends the state parameters after the fault setting to a fault detection module;
step c: and the fault diagnosis module receives the state parameters after the fault setting and judges the fault.
Compared with the prior art, the beneficial effects of the utility model are that:
1. the utility model provides an electric motor car power battery PACK installation and debugging teaching platform adopts simulation charge-discharge module to simulate power battery's charging, discharge process, and adopts 24 sections lithium iron phosphate monomer batteries to establish ties in the power battery PACK installation and debugging unit, and total voltage is no longer than 80V, compares the high voltage power supply who exceeds 300V on the real car, has improved the security of teaching process greatly.
2. The utility model provides an electric motor car power battery PACK debug teaching platform through interactive touch-sensitive screen, both can show teaching courseware and carry out theoretical study, can set up again and combine the fault diagnosis module to carry out troubleshooting after the trouble, improves student's actual operating ability.
Drawings
FIG. 1 is a schematic structural diagram of a PACK installation and adjustment teaching platform of a power battery of an electric vehicle;
FIG. 2 is a schematic diagram showing module connection of a PACK installation and adjustment teaching platform of a power battery of an electric vehicle;
FIG. 3 is a schematic diagram showing an internal structure of a power battery PACK adjusting unit;
fig. 4 is a schematic view of the station measurement terminals of the fault diagnosis cartridge.
In the figure: 2-interactive touch screen, 3-vehicle charger, 4-high voltage junction box, 5-load, 6-, 7-slow charging interface, 8-DC/DC, 9-fault diagnosis box, 10-shell, 11-settlement type threaded hole, 12-single battery, 13-PACK frame, 14-pre-charging contactor, 15-main positive contactor, 16-main negative contactor, 17-charging contactor, 18-BMS battery management system, 19-BMS acquisition board, 20-temperature sensor, 22-current sensor, 23-line controller, 24-power interface.
Detailed Description
The present invention will be described in further detail with reference to specific examples. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
Example 1
The utility model provides an electric motor car power battery PACK dress accent teaching platform, as shown in FIG. 2, includes:
the simulation charge-discharge module is used for simulating the charge-discharge process of the power battery of the electric vehicle;
the analog charge-discharge module comprises a power battery PACK adjusting unit, a vehicle-mounted charge 3 for charging the battery PACK adjusting unit and a load 5 for consuming the electric quantity of the power battery PACK adjusting unit;
the power battery PACK installation unit, as shown in fig. 3, includes: the device comprises a shell 10, a power battery consisting of a plurality of single batteries 12 and a PACK frame 13 for installing the single batteries 12, a BMS battery management system 18, a BMS acquisition board 19, a temperature sensor 20 for testing the temperature of a PACK adjusting unit of the power battery, a current sensor 22 for testing the current of the power battery and a line controller; the BMS collecting board 19 is electrically connected with each of the unit batteries 12 through a sampling line to collect the voltage of each of the unit batteries 12 and transmit the voltage to the BMS battery management system 18; the circuit controller is connected with a switch unit for controlling the on-off state of each single battery, the temperature sensor and the current sensor circuit; the BMS battery management system 18 controls the charging and discharging process of the power battery through a contactor group and monitors the state parameters of the PACK adjusting unit of the power battery in real time, and meanwhile, the BMS battery management system 18 is in communication connection with the interactive display module through a data line to transmit the state parameters to the interactive display module; and the data line is connected with a signal transmitter, and the signal transmitter is connected with the fault diagnosis module through WIFI wireless communication so as to transmit the state parameters to the fault diagnosis module.
Specifically, the contact group includes a precharge contactor 14, a main positive contactor 15, a main negative contactor 16, and a charging contactor 17;
the BMS battery management system 18 controls the charge and discharge processes of the unit batteries 12. During charging, the charging contactor 17 and the main negative contactor 16 are closed first, and the main positive contactor 15 is closed again; during discharging, the pre-charge contactor 14 and the main negative contactor 16 are closed first, and the main positive contactor 15 is closed again.
In particular, the status parameters include: the voltage and the electric quantity of each single battery, the voltage of the power battery, the voltage of a current sensor, the voltage of a temperature sensor, the high line voltage of a CAN line, the low line voltage of the CAN line, the temperature information of a test unit, the current information of the power battery and the working states of a main positive contactor, a main negative contactor, a charging contactor and a pre-charging contactor. Wherein the voltage of battery cell is gathered by BMS acquisition board and is transmitted to BMS battery management system after, the electric quantity of battery cell is by BMS battery management system real-time supervision, current sensor voltage, temperature sensor voltage, CAN line high line voltage, CAN line low line voltage and main positive contactor, main negative contactor, charging contactor, the operating condition of pre-charging contactor is by BMS battery management system real-time supervision, test element temperature information is transmitted to BMS battery management system after gathering by temperature sensor, power battery current information is transmitted to BMS battery management system after gathering by current sensor.
The interactive display module receives and displays the state parameters and sends the state parameters to the fault diagnosis module; and/or the interactive display module performs fault setting and sends the fault setting to a BMS battery management system;
and the fault diagnosis module receives the state parameters and converts the state parameters into electric signals for students to detect and diagnose.
The national standard charging pile is electrically connected with a vehicle-mounted charger 3 through a slow charging interface 7 on the rack, and the vehicle-mounted charger 3 converts 220V alternating current provided by the national standard charging pile into 60V direct current to charge the power battery PACK adjusting unit; the power battery PACK adjusting unit outputs 74.4-79.2V direct current and then drives the load 5 to operate after being shunted by the high-voltage junction box 4 so as to consume the electric energy provided by the power battery PACK adjusting unit. The vehicle-mounted charger 3 is connected with the high-voltage junction box 4 through a CAN line, the charge-discharge simulation module simulates the charge and discharge processes of the power battery, 24 lithium iron phosphate single batteries are connected in series in the power battery PACK adjusting unit, the total voltage does not exceed 80V, and compared with the high-voltage power supply exceeding 300V on a real vehicle, the safety of the teaching process is greatly improved.
Example 2
This embodiment is a description of hardware devices based on embodiment 1.
The hardware equipment of electric motor car power battery PACK installation and debugging teaching platform is shown in figure 1, includes: a stage, an interactive touch screen 2 mounted on the stage, and four failure diagnosis boxes 9 that can be used separately from the stage.
The hardware equipment of the interactive display module is an interactive touch screen 2, and can be used for teaching display and state parameter display of a fault setting and power battery PACK debugging unit.
The fault diagnosis module comprises four fault diagnosis boxes 9 for students to use in groups, an analog signal generator is integrated in each fault diagnosis box 9, and the analog signal generator receives the state parameters and converts the state parameters into electric signals for students to detect and diagnose.
Each of the fault diagnosis boxes includes 37 test terminals for testing the state parameters, as shown in fig. 4, wherein the terminals DC-, a1-a23, and DC + total 25 terminals are respectively inserted into the positive and negative poles of 24 cells in total of B1-B24, the voltage between two adjacent terminals is the voltage corresponding to the cell, the normal range is 3.1-3.3V, DC-and DC + are the total voltage of the power battery, the normal range is 74.4-79.2V, and the information of the remaining 12 terminals is as follows:
each fault diagnosis box is provided with a power interface 24.
The power battery PACK debugging unit with install high-voltage distribution box 4 between the load, an output port of high-voltage distribution box 4 is connected load 5, and another output port exports 12V voltage through DC/DC 8 conversion back and does the power supply is supplied power to the low voltage part in the battery PACK debugging unit, the low voltage part includes BMS battery management system 18, BMS acquisition board 19, temperature sensor 20, current sensor 22, pre-charge contactor 14, main positive contactor 15, main negative contactor 16 and the contact 17 that charges. In this embodiment, the load is a high-power discharge resistor.
And a slow charging interface 7 for charging the battery PACK adjusting unit and a 220V alternating current port 6 for supplying power to the vehicle-mounted charger 3 and the interactive touch screen 2 are arranged on the rack.
Example 3
The teaching method of the electric vehicle power battery PACK installation and adjustment teaching platform,
the assembling and debugging method of the power battery PACK comprises the following steps:
step 1: calibrating internal resistance of all single batteries by using an internal resistance detector, and mounting the single batteries with the same internal resistance on a PACK frame to form a power battery;
in this embodiment, 24 lithium iron phosphate single batteries are adopted, and every 4 lithium iron phosphate single batteries are divided into one group and mounted on one PACK frame. And adjacent single batteries 12 in the PACK frame 13 are connected by adopting sedimentation type threaded holes 11 so as to prevent short circuit.
Step 2: the vehicle-mounted charger charges the power battery PACK installation and adjustment unit, and the power battery PACK installation and adjustment unit monitors the state parameters of the power battery PACK installation and adjustment unit in real time and transmits the state parameters to the interactive display module;
and step 3: the interactive display module receives and displays the state parameters and transmits the state parameters to the fault detection module for student detection;
and 4, step 4: the single batteries with consistent screening voltage and battery capacity are judged by observing the state parameters of the power battery PACK installation and adjustment unit displayed by the interactive display module or the state parameters detected by the fault detection module, and the sorting and capacity grading of the single batteries are completed;
the fault setting and fault detection method comprises the following steps:
step a: performing fault setting through the interactive display module and transmitting fault setting information to the BMS battery management system, wherein the fault setting information comprises a fault setting point and line states, and the line states comprise short circuit, open circuit and virtual connection;
step b: the BMS battery management system actually controls the line state of the fault setting point through a line controller according to the fault setting information and sends the state parameters after the fault setting to a fault detection module;
step c: and the fault diagnosis module receives the state parameters after the fault setting and judges the fault.
The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, a plurality of improvements and decorations can be made without departing from the principle of the present invention, and these improvements and decorations should also be regarded as the protection scope of the present invention.
Claims (9)
1. The utility model provides an electric motor car power battery PACK dress accent teaching platform which characterized in that includes:
the simulation charge-discharge module is used for simulating the charge-discharge process of the power battery of the electric vehicle;
the analog charge-discharge module comprises a power battery PACK installation and adjustment unit, a vehicle-mounted charger electrically connected with the battery PACK installation and adjustment unit and used for charging the battery PACK installation and adjustment unit, and a load electrically connected with the power battery PACK installation and adjustment unit and used for consuming the electric quantity of the power battery PACK installation and adjustment unit;
power battery PACK installation and adjustment unit includes: the battery PACK testing system comprises a power battery, a BMS battery management system, a BMS acquisition board, a temperature sensor, a current sensor and a line controller, wherein the power battery consists of a plurality of single batteries and a PACK frame used for installing the single batteries; the BMS acquisition board is electrically connected with each single battery so as to acquire the voltage of each single battery and transmit the voltage to the BMS battery management system; the circuit controller is connected with a switch unit for controlling the on-off state of each single battery, the temperature sensor and the current sensor circuit; the BMS battery management system controls the charging and discharging process of the power battery through a contactor group, monitors the state parameters of the PACK assembly and adjustment unit of the power battery in real time, and transmits the state parameters to the interactive display module and the fault diagnosis module;
the interactive display module receives and displays the state parameters; and/or the interactive display module performs fault setting and sends the fault setting to a BMS battery management system;
and the fault diagnosis module receives the state parameters and converts the state parameters into electric signals for students to detect and diagnose.
2. The electric vehicle power battery PACK installation and adjustment teaching platform of claim 1, wherein the BMS battery management system is in communication connection with the interactive display module through a data line;
and the data line is connected with a signal transmitter, and the signal transmitter is connected with the fault diagnosis module through WIFI wireless communication.
3. The electric vehicle power battery PACK installation and adjustment teaching platform of claim 2, wherein the contactor group comprises a pre-charging contactor, a main positive contactor, a main negative contactor and a charging contactor;
during charging, the charging contactor and the main negative contactor are closed first, and the main positive contactor is closed again;
during discharging, the pre-charging contactor and the main negative contactor are closed first, and the main positive contactor is closed again.
4. The electric vehicle power battery PACK installation and adjustment teaching platform of claim 3, wherein the state parameters include: the voltage and the electric quantity of each single battery, the voltage of the power battery, the voltage of a current sensor, the voltage of a temperature sensor, the high line voltage of a CAN line, the low line voltage of the CAN line, the temperature information of a test unit, the current information of the power battery and the working states of a main positive contactor, a main negative contactor, a charging contactor and a pre-charging contactor.
5. The electric vehicle power battery PACK installation and adjustment teaching platform of claim 1, wherein the interactive display module is an interactive touch screen.
6. The electric vehicle power battery PACK installation and adjustment teaching platform as claimed in claim 1, wherein the fault diagnosis module comprises four fault diagnosis boxes, an analog signal generator is integrated in each fault diagnosis box, and the analog signal generator receives the state parameters and converts the state parameters into electric signals for students to detect and diagnose.
7. The electric vehicle power battery PACK installation teaching platform of claim 6, wherein each of the fault diagnosis boxes includes a plurality of test terminals for testing the status parameters.
8. The electric vehicle power battery PACK debugging teaching platform of claim 1, wherein a high voltage distribution box is installed between the power battery PACK debugging unit and the load, one output port of the high voltage distribution box is connected to the load, and the other output port supplies power to the battery PACK debugging unit after DC/DC conversion.
9. The electric vehicle power battery PACK installation teaching platform of claim 1, further comprising a rack, wherein the rack is provided with a slow charging interface for charging the battery PACK installation unit and a 220V alternating current port for supplying power to the vehicle-mounted charger and the interactive touch screen.
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| CN202021197785.3U CN213150042U (en) | 2020-06-24 | 2020-06-24 | Electric motor car power battery PACK dress accent teaching platform |
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| CN202021197785.3U CN213150042U (en) | 2020-06-24 | 2020-06-24 | Electric motor car power battery PACK dress accent teaching platform |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111627286A (en) * | 2020-06-24 | 2020-09-04 | 天津市职业大学 | Electric vehicle power battery PACK installation and adjustment teaching platform and teaching method thereof |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN111627286A (en) * | 2020-06-24 | 2020-09-04 | 天津市职业大学 | Electric vehicle power battery PACK installation and adjustment teaching platform and teaching method thereof |
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Granted publication date: 20210507 |