CN211237446U - Battery management and charging principle training system - Google Patents

Battery management and charging principle training system Download PDF

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Publication number
CN211237446U
CN211237446U CN201921116262.9U CN201921116262U CN211237446U CN 211237446 U CN211237446 U CN 211237446U CN 201921116262 U CN201921116262 U CN 201921116262U CN 211237446 U CN211237446 U CN 211237446U
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charging
relay
battery management
panel
module
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许婕
吕丕华
施卫
孙勇
楚萌
许智达
李静
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Zhongde Nuohao Beijing Education Investment Co ltd
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Zhongde Nuohao Beijing Education Investment Co ltd
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Abstract

The utility model relates to a real standard system of battery management and principle of charging, including real standard rack and panel, the panel setting is in real standard rack top, and the panel is installed each component that constitutes pure electric vehicles battery management and charging system with real on the real standard rack, and the circuit schematic diagram that each component of pure electric vehicles battery management and charging system is connected is printed in the front of panel. The utility model discloses use new forms of energy pure electric automobile battery management system and charging system as prototype design, be a real platform of instructing of teaching that collects multiple advanced technology means in an organic whole. Through the circuit schematic diagram of the battery management and charging system on the panel and the actual elements forming the system, the structural composition and the working principle of the battery management and charging system of the pure electric vehicle are visually displayed, the operation working process of the battery management and charging system of the pure electric vehicle is completely simulated, so that students can more intuitively know the electric vehicle, and the teaching effect of the battery management and charging principle courses of the pure electric vehicle is improved.

Description

Battery management and charging principle training system
Technical Field
The utility model relates to a new forms of energy car technical field, concretely relates to real standard system of battery management and principle of charging.
Background
The automobile training platform is an important teaching aid for training students to understand the core control principle of automobiles and practice practical operation ability, and is an indispensable teaching article for vocational schools, training institutions and the like at present.
In recent years, with the vigorous popularization of new energy automobiles in the national level, the growth rate of pure electric automobiles is kept above 100 percent all the time, the new energy pure electric automobiles are greatly different from the traditional fuel oil automobile power system, and a large amount of new energy automobile maintenance talents are urgently needed. The development of the current new energy vehicle pure electric vehicle teaching is still in a primary development stage in China, teaching products mostly mainly use a static structure principle teaching board, the complex pure electric vehicle battery management and charging principle cannot be clearly expressed, the teaching products have large difference with the actual working condition and the principle, and the requirement of professional maintenance personnel of the new energy vehicle on professional technical colleges cannot be met.
SUMMERY OF THE UTILITY MODEL
To the technical problem, the utility model provides a real standard system of battery management and principle of charging.
The utility model provides an above-mentioned technical problem's technical scheme as follows: the utility model provides a real standard system of battery management and principle of charging, includes real standard rack and panel, the panel sets up real standard rack top, install each component that constitutes pure electric vehicles battery management and charging system on panel and the real standard rack, the front printing of panel the circuit schematic diagram that each component of pure electric vehicles battery management and charging system is connected.
The utility model has the advantages that: the new energy pure electric vehicle battery management system and the charging system are designed as a prototype, and the teaching training platform integrates various advanced technical means. Through the circuit schematic diagram of the battery management and charging system on the panel and the actual elements forming the system, the structural composition and the working principle of the battery management and charging system of the pure electric vehicle are visually displayed, the operation working process of the battery management and charging system of the pure electric vehicle is completely simulated, so that students can more intuitively know the electric vehicle, and the teaching effect of the battery management and charging principle courses of the pure electric vehicle is improved.
On the basis of the technical scheme, the utility model discloses can also do following improvement.
Further, all elements and circuit schematic diagrams forming the battery management and charging system of the pure electric vehicle are arranged on four areas of the panel and the practical training rack, wherein the first area is arranged on the side face of the panel and comprises an alternating current charging gun seat; the second area is arranged on the upper part of the front surface of the panel and comprises a digital instrument, an indicator light and a display screen; the third area is arranged in the middle of the front surface of the panel and comprises the circuit schematic diagram and the emergency stop button; the fourth area is arranged at the right lower part of the front surface of the panel and comprises an accelerator pedal and a switch; and a shelf in the training rack is provided with a power battery pack, a thermosensitive element, a BMS central control module, a BMS terminal module, a cooling fan, a current transformer, a relay group, a pre-charging resistor, a PTC heating module, a vehicle-mounted charger, a DC/DC module, a motor controller, a vehicle control unit, a storage battery and a power motor.
Further, the insulating monitoring end of the BMS central control module and the single-section voltage detection end of the BMS terminal module are connected with the power battery pack, the relay control end of the BMS central control module is connected with the first end of the relay group, the CAN communication end of the BMS central control module is respectively connected with the CAN communication ends of the indicator lamp, the display screen and the BMS terminal module, the current sensor charging signal end of the BMS central control module is connected with the current transformer, the temperature acquisition end of the BMS is respectively connected with the cooling fan and the thermosensitive element, the anode of the power battery pack is connected with the second end of the relay group, and the cathode of the power battery pack is connected with the third end of the relay group through an emergency stop button and the current transformer.
Further, the fourth end of relay group is connected with on-vehicle charger, on-vehicle charger is connected with the rifle seat that charges of alternating current, the fifth end of relay group, sixth end are connected with positive, the negative input of DC/DC module respectively, the positive, the negative output of DC/DC module are connected with positive, the negative input of battery respectively, the seventh end of relay group is connected with motor controller's positive input through pre-charge resistance, the eighth end of relay group is connected with motor controller's positive input, the ninth end of relay group is connected with motor controller's negative input, the tenth end of relay group with PTC heats the module and connects, motor controller is connected with motor power and accelerator pedal respectively.
Further, the relay group comprises a total positive relay, a total negative relay, a pre-charging relay, a charging relay and a PTC relay;
the positive pole of the power battery pack is respectively connected with one end of a main positive relay contact and one end of a pre-charging relay contact, the other end of the main positive relay contact is respectively connected with the positive input end of the DC/DC module and the positive input end of the motor controller, and the other end of the pre-charging relay contact is connected with the positive input end of the motor controller through a pre-charging resistor;
the negative pole of power battery group passes through emergency stop button and current transformer and is connected with the one end of total negative relay contact and the one end of charging relay contact respectively, the other end of total negative relay contact is connected with the one end of PTC relay contact, the negative input of DC/DC module and the negative input of machine controller respectively, the other end of PTC relay contact is connected with PTC heating module, the other end of charging relay contact is connected with on-vehicle charger, the relay control end of accuse module respectively with total positive relay, total negative relay, pre-charge relay, charging relay and the coil connection of PTC relay in the BMS.
Further, the digital instrument includes power battery pack voltmeter and battery voltmeter, the pilot lamp includes power indicator, discharge indicator and the pilot lamp that charges, the switch includes PTC switch, starting switch and switch.
Furthermore, a power supply change-over switch, a CAN line interface and a high-voltage power supply output interface are further installed on the side face of the panel, and the power supply change-over switch is respectively connected with the power battery pack and the high-voltage power supply output interface.
Furthermore, a fault setting element is further installed on the side face of the panel, and the fault setting element is connected in a connecting line of each element of the battery management and charging system of the pure electric vehicle.
Further, the fault setting element includes a toggle switch and/or a potentiometer.
Furthermore, a detection terminal is arranged in a circuit schematic diagram printed on the front surface of the panel, and the detection terminal is connected to a corresponding position in a connection circuit of each element of the battery management and charging system of the pure electric vehicle.
Drawings
Fig. 1 is a schematic perspective view of a practical training system for battery management and charging principle provided in an embodiment of the present invention;
fig. 2 is a schematic structural diagram of a front surface of a battery management and charging principle practical training system panel provided in an embodiment of the present invention;
fig. 3 is a schematic diagram of the connection structure of the BMS central control module with the main positive relay, the main negative relay, the pre-charge relay, the charge relay, and the PTC relay;
FIG. 4 is a schematic view of a connection structure of a voltmeter and a power battery pack;
FIG. 5 is a schematic view of a connection structure of a battery voltmeter and a battery;
fig. 6 is a schematic view of a connection structure of an indicator lamp and a BMS central control module.
Detailed Description
The principles and features of the present invention are described below in conjunction with the following drawings, the examples given are only intended to illustrate the present invention and are not intended to limit the scope of the present invention.
Fig. 1 is the embodiment of the utility model provides a three-dimensional structure schematic diagram of real standard system of battery management and principle of charging, as shown in fig. 1, this real standard system is including real standard rack 1 and panel 2, panel 2 sets up real standard rack 1 top, install each component that constitutes pure electric vehicle battery management and charging system on panel 2 and the real standard rack 1, the front printing of panel the circuit schematic diagram that each component of pure electric vehicle battery management and charging system is connected.
The practical training rack 1 and the peripheral frame of the panel 2 are made of aluminum alloy materials and assembled, so that the practical training rack is light in weight and easy to transport and move; is more convenient in practical use and transportation. In addition, on the premise of not reducing the functions of equipment, the components of the practical training system except the control system and the controller do not adopt the original vehicle components, so that the overall weight can be reduced, and the overall purchasing cost is greatly reduced; and can use the 54V low-tension electricity safe voltage that the transformer provided as the power, carry out the low pressure power supply to BMS terminal module, BMS well accuse module, on-vehicle charger, machine controller and display screen for do not have highly compressed potential safety hazard in the equipment use, the student uses safer and relieved also promotes the utilization ratio of the energy greatly on using the energy, reduces use cost.
The embodiment of the utility model provides a pair of real standard system of battery management and principle of charging to new forms of energy pure electric vehicles battery management system and charging system are prototype design, are the real standard platform of teaching of a collection multiple advanced technology means in an organic whole. Through the circuit schematic diagram of the battery management and charging system on the panel and the actual elements forming the system, the structural composition and the working principle of the battery management and charging system of the pure electric vehicle are visually displayed, the operation working process of the battery management and charging system of the pure electric vehicle is completely simulated, so that students can more intuitively know the electric vehicle, and the teaching effect of the battery management and charging principle courses of the pure electric vehicle is improved.
Optionally, in this embodiment, as shown in fig. 2, the various elements and the schematic circuit diagram constituting the battery management and charging system of the pure electric vehicle are disposed on four regions of the panel and a practical training rack, where a first region is disposed on a side surface of the panel and includes an ac charging gun base; the second area is arranged on the upper part of the front surface of the panel and comprises a digital instrument, an indicator light and a display screen; the third area is arranged in the middle of the front surface of the panel and comprises the circuit schematic diagram and the emergency stop button; the fourth area is arranged at the right lower part of the front surface of the panel and comprises an accelerator pedal and a switch; and a shelf in the training rack is provided with a power battery pack, a thermosensitive element, a BMS central control module, a BMS terminal module, a cooling fan, a current transformer, a relay group, a pre-charging resistor, a PTC heating module, a vehicle-mounted charger, a DC/DC module, a motor controller, a vehicle control unit, a storage battery and a power motor.
The alternating current charging gun seat can be connected with an alternating current charging gun to charge the power battery pack; the vehicle-mounted charger charges a vehicle-mounted lithium battery pack by passing alternating current with a fluctuation signal through the whole circuit, and specifically, the alternating current AC is subjected to rectification filtering and PFC, then is subjected to LLC voltage regulation and rectification output, and is charged into a high-voltage storage battery; the display screen is provided with a voice alarm function and can display alarm information, operation prompts, battery voltage, battery charge and discharge current, SOC and battery temperature in real time; the digital instrument displays the current battery data in a digital form, and comprises a power battery pack voltmeter and a storage battery voltmeter; the indicator lamp displays the current charging and discharging state and comprises a power indicator lamp, a discharging indicator lamp and a charging indicator lamp; the total positive relay, the total negative relay and the pre-charging relay in the relay group are used for simulating the principle of a high-voltage distribution box and expressing the power-on logic of the original vehicle during charging and discharging; the emergency stop button is used for simulating an emergency switch of an original vehicle and cutting off the operation of an instrument; the BMS central control module is mainly responsible for calculating the SOC, generating alarm data, controlling a charge-discharge circuit and measuring the insulation resistance.
A plurality of functional areas such as display, input, control, electrical equipment configuration interconnection, control system circuit principle display and the like are arranged on a panel and a practical training rack of the practical training system, and all elements are arranged on the panel and the practical training rack in a partitioning manner, so that the practical training system is simple and clear, and is simpler and more obvious to control.
Optionally, in this embodiment, as shown in fig. 2 and fig. 6, the insulation monitoring terminal of the BMS and the single voltage detecting terminal of the BMS terminal module are both connected to the power battery pack, the relay control terminal of the BMS is connected to the first terminal of the relay group, the CAN communication terminal of the BMS is connected to the indicator light, the display screen and the CAN communication terminal of the BMS terminal module, the current sensor charging signal terminal of the BMS is connected to the current transformer, the temperature collecting terminal of the BMS is connected to the cooling fan and the thermal element, the positive electrode of the power battery pack is connected to the second terminal of the relay group, and the negative electrode of the power battery pack is connected to the third terminal of the relay group through the emergency stop button and the current transformer.
The fourth end of relay group is connected with on-vehicle charger, on-vehicle charger is connected with the rifle seat that charges of alternating current, the fifth end of relay group, sixth end are connected with positive, the negative input of DC/DC module respectively, the positive, the negative output of DC/DC module are connected with positive, the negative input of battery respectively, the seventh end of relay group is connected with machine controller's positive input through pre-charge resistance, the eighth end of relay group is connected with machine controller's positive input, the ninth end of relay group is connected with machine controller's negative input, the tenth end of relay group with PTC heats the module and connects, machine controller is connected with motor power and accelerator pedal respectively.
Alternatively, in this embodiment, as shown in fig. 2 and 3, the relay set includes a total positive relay, a total negative relay, a pre-charge relay, a charge relay, and a PTC relay.
The positive pole of the power battery pack is respectively connected with one end of a main positive relay contact and one end of a pre-charging relay contact, the other end of the main positive relay contact is respectively connected with the positive input end of the DC/DC module and the positive input end of the motor controller, and the other end of the pre-charging relay contact is connected with the positive input end of the motor controller through a pre-charging resistor;
the negative pole of power battery group passes through emergency stop button and current transformer and is connected with the one end of total negative relay contact and the one end of charging relay contact respectively, the other end of total negative relay contact is connected with the one end of PTC relay contact, the negative input of DC/DC module and the negative input of machine controller respectively, the other end of PTC relay contact is connected with PTC heating module, the other end of charging relay contact is connected with on-vehicle charger, the relay control end of accuse module respectively with total positive relay, total negative relay, pre-charge relay, charging relay and the coil connection of PTC relay in the BMS.
The vehicle-mounted charger is connected with the alternating current charging gun base, the positive output end and the negative output end of the DC/DC module are respectively connected with the positive input end and the negative input end of the storage battery, and the motor controller is respectively connected with the power motor and the accelerator pedal.
As shown in fig. 4 and 5, the power battery pack voltmeter is connected between the positive electrode and the negative electrode of the power battery pack, and the storage battery voltmeter is connected between the positive electrode and the negative electrode of the storage battery.
Specifically, the function implementation manner of the practical training system is as follows:
and (3) electrifying: and turning on a power switch on the practical training system, and turning on a power indicator lamp to indicate that the practical training system is normally electrified. And pressing a display system start key on the practical training system, and starting the display system. After the display system works, a data flow interface in a secondary menu needs to be entered, a rack starting switch is opened, the BMS detects whether the voltage of the storage battery meets the working requirement, if the voltage of the storage battery meets the working requirement, the BMS controls the total negative contactor to be switched on, then controls the pre-charging contactor to be sucked, after the pre-charging capacitor is full of the pre-charging capacitor, the BMS controls the total positive contactor to be switched on, the pre-charging contactor is switched off, the power-on process is finished, the accelerator pedal is pressed at the moment, and. The PTC switch is pressed and the discharge process is entered. In the process, the BMS central control module informs the reference quantities of the residual capacity, the voltage, the current, the temperature and the like of the battery to equipment such as a whole vehicle controller and a motor controller in real time through a high-speed CAN1 bus so as to adopt a more reasonable control strategy. The BMS terminal module informs the detailed information of the battery to the BMS central control module through the high-speed CAN2 bus, and then completes the functions of displaying battery state data, giving fault alarm and the like, and provides basis for the maintenance and the smoothness of the battery.
Charging: turn on "switch" on the real standard system, the power indicator lights, opens rack starting switch, inserts to charge and rob, confirms the relation of connection through CC and CP line, then vehicle-mounted charger turns into the direct current with the alternating current, charges the battery, and vehicle-mounted charger passes through the CAN line connection with BMS host system to the electric current that the control charges. Under the whole group charging operation mode, the battery is not unloaded to the ground, and the charging wire of the vehicle-mounted charger is directly inserted into a charging socket of the electric automobile for charging. At the moment, the vehicle-mounted high-speed CAN or RS-485 network is added into the vehicle-mounted charger node, and the rest is unchanged. The vehicle-mounted charger knows the real-time state of the battery through a vehicle-mounted high-speed CAN or RS-485 network, adjusts a charging strategy and realizes safe charging. For some reason, only the battery box and the battery measurement and control module of the battery box are unloaded from the whole vehicle in the daily supplementary charging mode, and the BMS main machine is still on the vehicle. Therefore, when the vehicle-mounted charger is charged, the battery management unit BMS is used for informing the vehicle-mounted charger of the voltage, the temperature, the fault and other information of each single battery in the battery box in real time, and the safe and optimal charging is realized.
Discharging: according to the PTC switch, the BMS controls the PTC relay to be attracted, the high-voltage battery directly supplies high-voltage power to the PTC heating module, the current collection value is increased, the cooling fan starts to work, and the discharging process of the high-voltage battery is realized.
Optionally, in this embodiment, a power supply changeover switch, a CAN line interface, and a high-voltage power supply output interface are further installed on a side surface of the panel, and the power supply changeover switch is connected to the power battery pack and the high-voltage power supply output interface, respectively.
Specifically, the switchable power supply of the power supply changeover switch is 'internal connection' or 'external connection', when the switchable power supply is switched to 'internal connection', the power battery pack supplies power to the practical training system, when the switchable power supply is switched to external connection, the power battery pack supplies power to the outside through the high-voltage power supply output interface, and the BMS carries out CAN communication to the outside through the CAN line interface. For example, the practical training system can be connected with a rack of a vehicle control system, data can be communicated, and an interaction function and a logic principle between the practical training system and a power battery can be displayed.
Optionally, in this embodiment, a fault setting element is further installed on a side of the panel, and the fault setting element is connected in a connection line of each element of the battery management and charging system of the pure electric vehicle.
Specifically, various types of faults can be set by operating fault setting elements such as a button switch, a potentiometer and the like connected in the line, and the positions of fault points can be judged by all the set faults through a detection means so as to realize the teaching of line fault troubleshooting.
The specific fault setting table is as follows:
Figure BDA0002131376490000091
description of the failure settings:
1) faults 1, 2 and 3 can be broken faults, and when the simulation faults are simulated, corresponding potentiometers are required to be simulated, such as: the fault "1" corresponds to "analog 1", and so on;
2) after the fault is recovered, the ignition switch needs to be closed, and the ignition switch is restarted after waiting for 3-5 seconds;
3) the fault can be measured using a multimeter or the like.
And (3) fault state:
1) fault 1, open circuit: the system can not detect the voltage, and the display screen can visually display and alarm; during simulation: the system alarms in real time according to the voltage change (default setting of the system is that the single-section voltage is larger than 3.59V for general alarm, larger than 3.7V for serious alarm and power failure; the single-section voltage is lower than 2.6V for system power failure);
2) faults 2 and 3, open circuit: the system cannot detect the real-time temperature of the point, and the display screen visually displays data and prompts an alarm; during simulation: the system alarms too high temperature or unbalanced temperature (the default set temperature difference of the system is 8 ℃ for general alarm, the temperature is more than 13 ℃ for serious alarm, and the system is powered off) according to the simulated resistance value;
3) 4, when the fault is set, the system can not detect the voltage, the system alarms and cuts off the power, and a universal meter can be used for measuring the real-time voltage;
4) 5, when the fault is set, the system cannot be powered on, the motor cannot work, and the PTC heating module cannot be started;
5) and 6, when the fault is set, the charging gun is inserted, and the system cannot be charged.
Optionally, in this embodiment, detection terminals are disposed in the wiring in the schematic circuit diagram printed on the front surface of the panel, and the detection terminals are connected to corresponding positions in the connection wiring of each element of the battery management and charging system of the pure electric vehicle.
Specifically, a plurality of detection terminals may be provided in a line in the schematic circuit diagram, and a detection instrument is used to measure current and voltage signals at the detection terminals to perform troubleshooting operation.
As shown in FIG. 2, a detection terminal V0-V16 is correspondingly connected to the positive pole of each power battery pack, and can be used for measuring the data of a single battery, and in addition, a detection terminal is respectively connected to the 1# and 6# thermosensitive elements and can be used for measuring the temperature signal changes of the No. 1 battery and the No. 6 battery so as to conveniently check the temperature faults of the batteries.
The above description is only for the preferred embodiment of the present invention, and is not intended to limit the present invention, and any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention should be included within the protection scope of the present invention.

Claims (10)

1. The utility model provides a real standard system of battery management and principle of charging, its characterized in that is including real standard rack and panel, the panel sets up real standard rack top, install each component that constitutes pure electric vehicles battery management and charging system on panel and the real standard rack, the front printing of panel the circuit schematic diagram that each component of pure electric vehicles battery management and charging system is connected.
2. The battery management and charging principle practical training system according to claim 1, wherein the elements and the circuit schematic diagram forming the battery management and charging system of the pure electric vehicle are arranged on four regions and a practical training rack of the panel, wherein a first region is arranged on the side surface of the panel and comprises an alternating current charging gun seat; the second area is arranged on the upper part of the front surface of the panel and comprises a digital instrument, an indicator light and a display screen; the third area is arranged in the middle of the front surface of the panel and comprises the circuit schematic diagram and the emergency stop button; the fourth area is arranged at the right lower part of the front surface of the panel and comprises an accelerator pedal and a switch; and a shelf in the training rack is provided with a power battery pack, a thermosensitive element, a BMS central control module, a BMS terminal module, a cooling fan, a current transformer, a relay group, a pre-charging resistor, a PTC heating module, a vehicle-mounted charger, a DC/DC module, a motor controller, a vehicle control unit, a storage battery and a power motor.
3. The system for practical training of battery management and charging principle according to claim 2, wherein the insulation monitoring terminal of the BMS control module and the single voltage detection terminal of the BMS terminal module are both connected to the power battery pack, the relay control terminal of the BMS control module is connected to the first terminal of the relay group, the CAN communication terminal of the BMS control module is connected to the indicator lamp, the display screen and the CAN communication terminal of the BMS terminal module, the current sensor charging signal terminal of the BMS control module is connected to the current transformer, the temperature acquisition terminal of the BMS is connected to the heat dissipation fan and the thermistor, the positive electrode of the power battery pack is connected to the second terminal of the relay group, and the negative electrode of the power battery pack is connected to the third terminal of the relay group through the emergency stop button and the current transformer.
4. The system for practical training of battery management and charging principle according to claim 3, wherein a fourth end of the relay set is connected with a vehicle-mounted charger, the vehicle-mounted charger is connected with an alternating current charging gun base, a fifth end and a sixth end of the relay set are respectively connected with a positive input end and a negative input end of a DC/DC module, a positive output end and a negative output end of the DC/DC module are respectively connected with a positive input end and a negative input end of a storage battery, a seventh end of the relay set is connected with a positive input end of a motor controller through a pre-charging resistor, an eighth end of the relay set is connected with a positive input end of the motor controller, a ninth end of the relay set is connected with a negative input end of the motor controller, a tenth end of the relay set is connected with the PTC module, and the motor controller is respectively connected with a power motor and an accelerator pedal.
5. The battery management and charging principle training system according to claim 4, wherein the relay group comprises a total positive relay, a total negative relay, a pre-charging relay, a charging relay, and a PTC relay;
the positive pole of the power battery pack is respectively connected with one end of a main positive relay contact and one end of a pre-charging relay contact, the other end of the main positive relay contact is respectively connected with the positive input end of the DC/DC module and the positive input end of the motor controller, and the other end of the pre-charging relay contact is connected with the positive input end of the motor controller through a pre-charging resistor;
the negative pole of power battery group passes through emergency stop button and current transformer and is connected with the one end of total negative relay contact and the one end of charging relay contact respectively, the other end of total negative relay contact is connected with the one end of PTC relay contact, the negative input of DC/DC module and the negative input of machine controller respectively, the other end of PTC relay contact is connected with PTC heating module, the other end of charging relay contact is connected with on-vehicle charger, the relay control end of accuse module respectively with total positive relay, total negative relay, pre-charge relay, charging relay and the coil connection of PTC relay in the BMS.
6. The system for practical training of battery management and charging principle according to claim 2, wherein the digital instrument comprises a power battery pack voltmeter and a storage battery voltmeter, the indicator lamps comprise a power indicator lamp, a discharge indicator lamp and a charging indicator lamp, and the switches comprise a PTC switch, a starting switch and a power switch.
7. The practical training system for battery management and charging principle according to any one of claims 2 to 6, wherein a power supply change-over switch, a CAN line interface and a high-voltage power supply output interface are further installed on a side surface of the panel, and the power supply change-over switch is respectively connected with the power battery pack and the high-voltage power supply output interface.
8. The practical training system for battery management and charging principle according to any one of claims 2 to 6, wherein a fault setting element is further installed on a side surface of the panel, and the fault setting element is connected in a connection line of each element of the battery management and charging system of the pure electric vehicle.
9. The battery management and charging principle training system according to claim 8, wherein the fault setting element comprises a toggle switch and/or a potentiometer.
10. The practical training system for battery management and charging principles according to any one of claims 2 to 6, wherein detection terminals are arranged in lines in a schematic circuit diagram printed on the front surface of the panel, and the detection terminals are connected to corresponding positions in connection lines of each element of the battery management and charging system of the pure electric vehicle.
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Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111932972A (en) * 2020-08-21 2020-11-13 上海第二工业大学 Real standard platform of BMS
CN112270857A (en) * 2020-09-15 2021-01-26 广州车拉夫汽车科技有限公司 Fault setting device for teaching and high-voltage battery fault setting device thereof
CN113223385A (en) * 2021-04-25 2021-08-06 深圳职业技术学院 Charging principle demonstration system based on new energy automobile charging process
CN113611197A (en) * 2021-06-24 2021-11-05 浙江长征职业技术学院 New energy automobile power battery training platform

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111932972A (en) * 2020-08-21 2020-11-13 上海第二工业大学 Real standard platform of BMS
CN112270857A (en) * 2020-09-15 2021-01-26 广州车拉夫汽车科技有限公司 Fault setting device for teaching and high-voltage battery fault setting device thereof
CN113223385A (en) * 2021-04-25 2021-08-06 深圳职业技术学院 Charging principle demonstration system based on new energy automobile charging process
CN113611197A (en) * 2021-06-24 2021-11-05 浙江长征职业技术学院 New energy automobile power battery training platform

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