CN114296431A - Direct current fills test system and direct current of electric pile system of filling of electric pile - Google Patents
Direct current fills test system and direct current of electric pile system of filling of electric pile Download PDFInfo
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Abstract
The application provides a direct current fills electric pile's test system and direct current fills electric pile system. The direct-current charging pile comprises a plurality of controllers, and the test system comprises board cards and a simulation unit, wherein the board cards are respectively and electrically connected with the controllers; the simulation unit is electrically connected with the board cards and used for sending simulation signals to the controllers through the board cards, and determining that the communication performance of the corresponding controllers is qualified under the condition that the board cards receive feedback signals of the controllers, wherein the feedback signals are in response to the simulation signals. The test system can reuse hardware board card resources, flexibly switches test scenes of all controllers, realizes testing of communication performance of a plurality of controllers of the direct-current charging pile, and ensures that partial hardware resources of the test system can be reused, thereby well avoiding the problem of hardware resource waste.
Description
Technical Field
The application relates to the field of charging piles, in particular to a test system of a direct-current charging pile and the direct-current charging pile system.
Background
In the prior art, a direct current charging pile is a complex system coordinately controlled by a plurality of controllers, and mainly comprises a charging interaction controller, a charging main controller and a power output controller. The functions of each controller are different, so that a matched test bench is needed to complete the test, if the test is carried out independently, 3 test benches are needed, and the advantage that part of hardware resources can be recycled cannot be exerted. In addition, the function of a single controller can only be verified independently by designing an independent rack, and the function of the joint test of a plurality of controllers cannot be verified.
The above information disclosed in this background section is only for enhancement of understanding of the background of the technology described herein and, therefore, certain information may be included in the background that does not form the prior art that is already known in this country to a person of ordinary skill in the art.
Disclosure of Invention
The main aim at of this application provides a direct current fills electric pile's test system and direct current fills electric pile system to direct current fills electric pile and needs a plurality of testing arrangement to accomplish the test among the solution prior art, causes the extravagant problem of hardware data.
In order to achieve the purpose, according to one aspect of the application, a test system of a direct current charging pile is provided, the direct current charging pile comprises a plurality of controllers, the test system comprises board cards and a simulation unit, wherein the board cards are respectively electrically connected with the controllers; the simulation unit is electrically connected with the board cards and used for sending simulation signals to the controllers through the board cards, and determining that the corresponding communication performance of the controllers is qualified under the condition that the feedback signals responding to the simulation signals of the controllers are received through the board cards.
Optionally, the board cards include a serial port daughter board card, a CAN bus communication daughter board card and a resistor daughter board card, wherein the serial port daughter board card is electrically connected to the analog unit, and the serial port daughter board card is further configured to be electrically connected to the plurality of controllers respectively; the CAN bus communication daughter board card is electrically connected with the analog unit, and is also used for being electrically connected with the plurality of controllers respectively; the resistance daughter board card is used for receiving a simulation gun plugging instruction of the simulation unit and outputting a preset resistance value to the corresponding controller according to the simulation gun plugging instruction.
Optionally, the plurality of controllers of the dc charging pile include an interaction controller, a power output controller, and a main controller, the simulation unit includes a first simulation subunit, a second simulation subunit, a third simulation subunit, and a fourth simulation subunit, where the first simulation subunit is configured to be electrically connected to the interaction controller through the board card, the first simulation subunit is configured to send a first analog signal to the interaction controller through the board card, and determine whether a first feedback signal of the interaction controller responding to the first analog signal is received through the board card, and determine that the communication performance of the interaction controller is qualified in a case where the first feedback signal is received; the second analog subunit is used for sending a second analog signal to the main controller through the board card, determining whether a second feedback signal of the main controller responding to the second analog signal can be received through the board card, and determining that the communication performance of the main controller is qualified under the condition that the second feedback signal is received; the third analog subunit is used for sending a third analog signal to the power output controller through the board card, determining whether a third feedback signal of the power output controller responding to the third analog signal can be received through the board card, and determining that the communication performance of the power output controller is qualified under the condition that the third feedback signal is received; the fourth simulation subunit is configured to be electrically connected to the interactive controller, the power output controller, and the main controller through the board card, and the fourth simulation subunit is configured to execute at least one of the following: receiving a fourth feedback signal of the interactive controller through the board card, generating a fourth analog signal according to the fourth feedback signal, and sending the fourth analog signal to the power output controller and/or the main controller through the board card; receiving a fifth feedback signal of the power output controller through the board card, generating a fifth analog signal according to the fifth feedback signal, and sending the fifth analog signal to the interactive controller and/or the main controller through the board card; and receiving a sixth feedback signal of the main controller through the board card, generating a sixth analog signal according to the sixth feedback signal, and sending the sixth analog signal to the interactive controller and/or the power output controller through the board card.
Optionally, the first analog subunit is used for respectively passing through the resistor daughter board card, the serial port daughter board card and the CAN bus communication daughter board card with the interaction controller is electrically connected, the first analog signal includes a first predetermined resistor, a first analog sub-signal and a second analog sub-signal, the first feedback signal includes a first feedback sub-signal and a second feedback sub-signal, the first analog subunit is used for passing through the resistor daughter board card outputs the first predetermined resistor to the interaction controller, the CAN bus communication daughter board card sends the first analog sub-signal, the serial port daughter board sends the second analog sub-signal, the CAN bus communication daughter board receives the first feedback sub-signal, the serial port daughter board receives the second feedback sub-signal, wherein the first analog sub-signal includes a charging-permitting signal, The first feedback sub-signal comprises a second message signal and a second charging state signal, the second analog sub-signal comprises a first voltage signal and a first current signal, and the second feedback sub-signal comprises a second voltage signal of the charging gun.
Optionally, the second analog subunit is configured to be electrically connected to the main controller through the serial port subunit and the CAN bus communication subunit, respectively, the second analog signal includes a third analog subunit and a fourth analog subunit, the second feedback signal includes a third feedback subunit, the second analog subunit is configured to send the third analog subunit through the CAN bus communication subunit, send the fourth analog subunit through the serial port subunit, and receive the third feedback subunit through the CAN bus communication subunit, where the third analog subunit includes a simulated gun insertion signal, an allowed charging signal, an insulation detection start signal, a third voltage signal, a second current signal, a charging price signal, and a charging state feedback signal, and the fourth analog subunit includes an authentication card number and a charging amount, the third feedback sub-signal comprises a CANFD card number, a charging starting signal and a charging ending signal.
Optionally, the third analog subunit is configured to pass through the resistor subunit card, the serial port subunit card and the CAN bus communication subunit card respectively with the power output controller is electrically connected, the third analog signal includes a second predetermined resistor, a fifth analog subunit signal, a sixth analog subunit signal and a fourth analog subunit signal, the third feedback signal includes a fourth feedback subunit signal, the third analog subunit is configured to pass through the resistor subunit card to output the second predetermined resistor to the power output controller, pass through the CAN bus communication subunit card to send the fifth analog subunit signal, pass through the serial port subunit card to send the sixth analog subunit signal, pass through the CAN bus communication subunit card to receive the fourth feedback subunit signal, wherein the fifth analog subunit signal includes obtaining a fourth voltage signal, obtaining a third current signal, and obtaining a fourth voltage signal, Acquiring a predetermined temperature signal and acquiring a fault state signal, wherein the sixth analog sub-signal comprises a fifth voltage signal and a fourth current signal, and the fourth feedback sub-signal comprises the fourth voltage signal, the third current signal, the predetermined temperature signal and the fault state signal.
Optionally, the serial port daughter card includes a first serial port daughter card, a second serial port daughter card, an analog output daughter card, and a digital input daughter card, and the CAN bus communication daughter card includes a plurality of communication daughter cards.
Optionally, the system further includes a power board, and the power board is electrically connected to the board and the analog unit, respectively.
In order to achieve the object, according to another aspect of the present application, there is also provided a dc charging pile system including a dc charging pile and a test system of the dc charging pile, wherein the dc charging pile includes a plurality of controllers; the test system is any one of the systems.
According to the technical scheme, in the test system of the direct-current charging pile, the board cards are respectively electrically connected with a plurality of controllers of the direct-current charging pile, the simulation unit is electrically connected with the board cards, the board cards are used for transmitting simulation signals to the controllers in a plurality of directions, the board cards are used for receiving the feedback signals of the controllers, the corresponding communication performance of the controllers is determined to be qualified, and the feedback signals are generated by responding to the simulation signals through the controllers. Compared with the direct current charging pile for the cooperative operation of a plurality of controllers in the prior art, the direct current charging pile needs a plurality of testing devices to test different controllers, so that the problem of hardware resource waste is caused.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this application, illustrate embodiments of the application and, together with the description, serve to explain the application and are not intended to limit the application. In the drawings:
fig. 1 shows a schematic structural diagram of a test system of a dc charging pile according to an embodiment of the present application;
fig. 2 is a schematic structural diagram of a test system of a dc charging pile according to a specific embodiment of the present application.
Wherein the figures include the following reference numerals:
100. a controller; 101. a board card; 102. an analog unit; 200. a first interactive controller; 201. a second interactive controller; 202. a main controller; 203. a power output controller; 204. a first analog subunit; 205. a second analog subunit; 206. a third analog subunit; 207. a fourth analog subunit; 208. a CAN bus communication daughter board card; 209. a serial port daughter board card; 210. an analog quantity output daughter board card; 211. a digital quantity input daughter board card; 212. a resistor daughter board card; 213. and (4) a power supply board card.
Detailed Description
It should be noted that the following detailed description is exemplary and is intended to provide further explanation of the disclosure. Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs.
It is noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of example embodiments according to the present application. As used herein, the singular forms "a", "an" and "the" are intended to include the plural forms as well, and it should be understood that when the terms "comprises" and/or "comprising" are used in this specification, they specify the presence of stated features, steps, operations, devices, components, and/or combinations thereof, unless the context clearly indicates otherwise.
It will be understood that when an element such as a layer, film, region, or substrate is referred to as being "on" another element, it can be directly on the other element or intervening elements may also be present. Also, in the specification and claims, when an element is described as being "connected" to another element, the element may be "directly connected" to the other element or "connected" to the other element through a third element.
As introduced by the background art, in the prior art, a plurality of testing devices are required for completing a test of a direct current charging pile, so that hardware data is wasted.
According to an exemplary embodiment of the present application, as shown in fig. 1, a test system of a dc charging pile is provided, where the dc charging pile includes a plurality of controllers 100, the test system includes a board 101 and a simulation unit 102, where the board 101 is configured to be electrically connected to each of the controllers 100; the analog unit 102 is electrically connected to the board 101, and the analog unit 102 is configured to transmit an analog signal to the plurality of controllers 100 through the board 101, and determine that the communication performance of the corresponding controller 100 is acceptable when a feedback signal of the controller 100 in response to the analog signal is received through the board 101.
In the test system for the direct current charging pile, the board cards are respectively electrically connected with the controllers of the direct current charging pile, the simulation unit is electrically connected with the board cards, the board cards send simulation signals to the controllers, and the communication performance of the corresponding controllers is determined to be qualified under the condition that the board cards receive feedback signals of the controllers, wherein the feedback signals are generated by the controllers in response to the simulation signals. Compared with the direct-current charging pile for the cooperative operation of a plurality of controllers in the prior art, a plurality of testing devices are required to test different controllers, and the problem of hardware resource waste is caused.
In an actual application process, the analog signals of the analog unit may be set according to GBT 27930-.
In order to further ensure that part of hardware resources of the board card are reused, thereby further ensuring that test resources are saved, according to a specific embodiment of the present application, the board card includes a serial port daughter board card, a CAN bus communication daughter board card, and a resistor daughter board card, wherein the serial port daughter board card is electrically connected to the analog unit, and the serial port daughter board card is further configured to be electrically connected to the plurality of controllers, respectively; the CAN bus communication daughter board card is electrically connected with the analog unit and is also used for being electrically connected with the plurality of controllers respectively; the resistance daughter board card is used for receiving a simulation gun plugging instruction of the simulation unit and outputting a preset resistance value to the corresponding controller according to the simulation gun plugging instruction, and the simulation gun plugging instruction is an instruction simulating that a charging gun is plugged into a charging port of an electric vehicle. The system realizes the test of different controllers by using the functions of part of the daughter boards on the boards, thereby further saving test resources and further saving test cost.
In an actual application process, the controllers of the dc charging pile include an interactive controller, a power output controller, and a main controller, the interactive controller and the power output controller are respectively connected to the main controller through a CAN bus, wherein the interactive controller is configured to perform data interaction with a charging vehicle, including receiving a charging request and a charging state of the electric vehicle, the main controller is configured to send the charging request sent by the interactive controller to the power output controller, the main controller is further configured to perform data interaction with a charging management service platform, and complete functions such as user authentication and charging, and the power output controller is configured to charge the electric vehicle.
In another specific embodiment of the present application, the CAN bus communication daughter card is used for forwarding data between the analog unit and the CAN node, and the serial port daughter card is used for receiving parallel data characters of the analog unit (or the controller), converting the parallel data characters into a continuous serial data stream, and sending the continuous serial data stream to the controller (or the analog unit), and is also used for receiving a serial data stream of the analog unit (or the controller), converting the serial data stream into parallel data characters, and sending the parallel data characters to the controller (or the analog unit), that is, implementing serial communication between the analog unit and the controller.
According to another specific embodiment of the present application, the analog unit includes a first analog subunit, a second analog subunit, a third analog subunit, and a fourth analog subunit, where the first analog subunit is configured to be electrically connected to the interactive controller through the board, the first analog subunit is configured to send a first analog signal to the interactive controller through the board, determine whether a first feedback signal of the interactive controller responding to the first analog signal can be received through the board, and determine that the communication performance of the interactive controller is qualified when the first feedback signal is received; the second analog subunit is configured to send a second analog signal to the main controller through the board, determine whether a second feedback signal of the main controller, which responds to the second analog signal, can be received through the board, and determine that the communication performance of the main controller is qualified when the second feedback signal is received; the third analog subunit is configured to send a third analog signal to the power output controller through the board, determine whether a third feedback signal of the power output controller, which responds to the third analog signal, can be received through the board, and determine that the communication performance of the power output controller is qualified when the third feedback signal is received; the fourth analog subunit is configured to be electrically connected to the interactive controller, the power output controller, and the main controller through the board card, and the fourth analog subunit is configured to execute at least one of the following: receiving a fourth feedback signal of the interactive controller through the board card, generating a fourth analog signal according to the fourth feedback signal, and sending the fourth analog signal to the power output controller and/or the main controller through the board card; receiving a fifth feedback signal of the power output controller through the board card, generating a fifth analog signal according to the fifth feedback signal, and sending the fifth analog signal to the interactive controller and/or the main controller through the board card; and receiving a sixth feedback signal of the main controller through the board card, generating a sixth analog signal according to the sixth feedback signal, and sending the sixth analog signal to the interactive controller and/or the power output controller through the board card. The simulation unit tests the communication performance of the interactive controller through the first simulation subunit, tests the communication performance of the main controller through the second simulation subunit, tests the communication performance of the power output controller through the third simulation subunit, tests the communication performance of the interactive controller, the main controller and the power output controller through the fourth simulation subunit, and ensures that the test on the communication performance of the controller of the direct current charging pile is complete and comprehensive, thereby solving the problem that a test device in the prior art can only independently verify the function of a single controller and can not verify the function of a plurality of controllers in a combined test.
In another specific embodiment of the present application, the first analog subunit is configured to be electrically connected to the interaction controller through the resistor daughter board, the serial port daughter board and the CAN bus communication daughter board, respectively, the first analog signal includes a first predetermined resistor, a first analog sub-signal and a second analog sub-signal, the first feedback signal includes a first feedback sub-signal and a second feedback sub-signal, the first analog subunit is configured to output the first predetermined resistor to the interaction controller through the resistor daughter board, transmit the first analog sub-signal through the CAN bus communication daughter board, transmit the second analog sub-signal through the serial port daughter board, receive the first feedback sub-signal through the CAN bus communication daughter board, and receive the second feedback sub-signal through the serial port daughter board, wherein, the first analog sub-signal includes a charge permission signal, a first message signal and a first charge state signal, the first feedback sub-signal includes a second message signal and a second charge state signal, the second analog sub-signal includes a first voltage signal and a first current signal, and the second feedback sub-signal includes a second voltage signal of the charging gun.
According to still another specific embodiment of the present application, the second analog subunit is configured to be electrically connected to the main controller through the serial port daughter board and the CAN bus communication daughter board, respectively, the second analog signal includes a third analog sub-signal and a fourth analog sub-signal, the second feedback signal includes a third feedback sub-signal, the second analog subunit is configured to transmit the third analog sub-signal through the CAN bus communication daughter board, transmit the fourth analog sub-signal through the serial port daughter board, and receive the third feedback sub-signal through the CAN bus communication daughter board, wherein the third analog sub-signal includes an analog gun insertion signal, a charging enable signal, an insulation detection enable signal, a third voltage signal, a second current signal, a charging price signal, and a charging status feedback signal, and the fourth analog sub-signal includes an authentication card number and a charging amount, the third feedback sub-signal comprises a CANFD card number, a charging start signal and a charging end signal.
In another specific embodiment of the present application, the third analog subunit is configured to be electrically connected to the power output controller through the resistor daughter board, the serial port daughter board, and the CAN bus communication daughter board, respectively, the third analog signal includes a second predetermined resistor, a fifth analog sub-signal, a sixth analog sub-signal, and a fourth analog sub-signal, the third feedback signal includes a fourth feedback sub-signal, the third analog subunit is configured to output the second predetermined resistor to the power output controller through the resistor daughter board, send the fifth analog sub-signal through the CAN bus communication daughter board, send the sixth analog sub-signal through the serial port daughter board, and receive the fourth feedback sub-signal through the CAN bus communication daughter board, where the fifth analog sub-signal includes obtaining a fourth voltage signal, The third analog sub-signal comprises a fifth voltage signal and a fourth current signal, and the fourth feedback sub-signal comprises the fourth voltage signal, the third current signal, the predetermined temperature signal and the fault state signal.
In an actual application process, the serial port daughter board cards comprise a first serial port daughter board card, a second serial port daughter board card, an analog output daughter board card and a digital input daughter board card, and the CAN bus communication daughter board card comprises a plurality of communication daughter board cards.
Specifically, the system further comprises a power board card, and the power board card is electrically connected with the board card and the analog unit respectively. In a more specific embodiment, the power board is further configured to supply power to the plurality of controllers of the dc charging pile, where the power board supplies power to the interactive controller when the interactive controller is tested; when the main controller is tested, the power supply board card supplies power to the main controller; when the power output controller is tested, the power supply board card supplies power to the power output controller; when the cooperative work performance of the interactive controller, the main controller and the power output controller is tested, the power supply board card respectively supplies power to the interactive controller, the main controller and the power output controller.
In an actual application process, the serial port daughter board card, the CAN bus communication daughter board card, the resistor daughter board card and the power supply board card are integrated on an electronic circuit board.
According to another specific embodiment of the present application, the dc charging pile includes two charging guns (a first charging gun and a second charging gun, respectively), as shown in fig. 2, the dc charging pile includes two interactive controllers (a first interactive controller 200 and a second interactive controller 201, respectively), a main controller 202, and a power output controller 203, the first charging gun corresponds to the first interactive controller, the second charging gun corresponds to the second interactive controller, in the testing system, the simulation unit of the system includes the first simulation subunit 204, the second simulation subunit 205, the third simulation subunit 206, and the fourth simulation subunit 207, the CAN bus communication subunit 208, the CAN serial subunit 209, the analog output subunit 210, the digital input subunit 211, the resistor subunit 212, and the power supply 213, the CAN bus communication daughter board card comprises 6 communication daughter board cards which are respectively a first communication daughter board card, a second communication daughter board card, a third communication daughter board card, a fourth communication daughter board card, a fifth communication daughter board card and a sixth communication daughter board card; the serial port daughter card comprises a first serial port daughter card and a second serial port daughter card.
When the interactive controller is tested, the resistor daughter board card, the analog quantity output daughter board card, the digital quantity input daughter board card, the first communication daughter board card, the second communication daughter board card, the third communication daughter board card and the fourth communication daughter board card provide hardware support, wherein the first communication daughter board card and the second communication daughter board card are used for the first interactive controller, and the third communication daughter board card and the fourth communication daughter board card are used for the second interactive controller, taking testing the first interactive controller as an example, the specific implementation process is as follows:
the first simulation subunit simulates that when the first charging gun insertion gun connection mark is 1, the first simulation subunit controls the resistance daughter card to output a resistance of 1k omega; the first simulation subunit simulates that when the main controller sends a charging permission instruction to be 1, the first simulation subunit controls the first communication daughter card to send a charging permission instruction signal; when the digital quantity input daughter board card detects the locking action of the electronic lock, the digital quantity input daughter board card sends the locking action to the first analog subunit, and then the first analog subunit controls the analog quantity output daughter board card to output a locking feedback voltage 12V of the electronic lock; the digital quantity input daughter board card detects that voltage difference of more than 10V is formed at two ends of a pin of the auxiliary source relay and sends the voltage difference to the first analog subunit, and the first analog subunit enters a charging handshake stage after detection feedback is obtained; in the charging handshake stage, after receiving a charging handshake message of the first interaction controller through the second communication sub-board card, the first simulation sub-unit simulates a battery management system to reply the charging handshake and identification message of the electric vehicle; after the first analog subunit detects that the direct current output relay is closed, setting the voltage inside and outside the direct current output relay of the analog output daughter board card as the insulation detection voltage of the battery management system; after receiving an insulation detection completion signal sent by the first interaction controller on the first communication daughter card as 1, setting the voltage of the inner side and the voltage of the outer side of the direct current relay as 0V by the first analog subunit; in the charging parameter configuration stage, the first simulation subunit replies a battery management system configuration parameter message of the electric vehicle after receiving the charging configuration parameter message of the charging pile through the second communication daughter board card; the first analog subunit controls the analog quantity output daughter board to be clamped at the outer side and the inner side pins of the direct current output relay to output voltages required by pre-charging; the first analog subunit enters a charging parameter configuration stage after detecting that the direct current output relay is disconnected; the first simulation subunit replies a battery management system configuration parameter message of the electric vehicle after receiving the charging pile charging configuration parameter message; the first analog subunit controls the analog quantity output daughter board to be clamped at the outer side and the inner side pins of the direct current output relay to output voltages required by pre-charging; the first analog subunit enters a charging stage after detecting that the direct current output relay is closed, and starts to send a charging information message; the first analog subunit controls the analog quantity output daughter card to output high voltage equal to a charging request voltage value of an electric vehicle battery management system, and outputs a current analog value equal to a charging request current value of the electric vehicle battery management system; the first simulation subunit detects that a charging information message sent by the first interaction controller and a set output high voltage and current value are within an error range through the second communication daughter board card; and (5) finishing the charging stage: detecting the charging stop state and the statistical information of the charger, and controlling the second communication daughter board card to start sending the charging stop state and the statistical information of the battery management system; requesting the current output signal value of the analog quantity output daughter board card to be reduced to 0A; when the digital input daughter board card detects that the direct current relay is in a disconnected state, the analog output daughter board card is controlled to reduce the voltage drop of the inner side and the outer side of the direct current relay to 0V.
When the main controller is tested, under the condition that a first charging gun is used, the first serial port daughter board card, the second serial port daughter board card, the first communication daughter board card, the fifth communication daughter board card and the sixth communication daughter board card provide hardware support, and the specific implementation process is as follows:
the second simulation subunit simulates that a signal simulating the first charging gun insertion gun connection mark is sent out by the first communication daughter board card and is 1; the second simulation subunit controls the first serial port daughter board card to send a preset card number; detecting the number value of the uploaded card number is consistent with the preset card number value, and controlling the fifth communication daughter board card to send an authentication success instruction; after the second simulation subunit receives a charging starting instruction sent by the main controller through the first communication daughter card, the first communication daughter card simulates a charging interaction controller to send an insulation detection request voltage, an insulation completion discharge 0V voltage, a pre-charging request voltage, a charging request voltage and a charging request current signal value in sequence; the first communication daughter board card detects the signal values of the insulation voltage, the discharged 0V voltage, the pre-charging voltage, the charging voltage and the charging current requested by the main controller through the sixth communication daughter board card, and simulates the CAN power module to return the equal signal values; when the charging is finished in the stopping mode 1, the second simulation subunit firstly accumulates and calculates the charging electric quantity, transmits the charging electric quantity to the main controller through the second serial port daughter board card, then simulates a charging service platform, sends out a preset amount and a charging unit price through the sixth communication daughter board card, and simulates the state of the interactive controller as a charging finishing state after receiving a charging finishing instruction sent by the main controller through the first communication daughter board card; when the charging is finished in the stopping mode 2, the second simulation subunit simulates the charging service platform to remotely send a charging finishing instruction through the fifth communication daughter board card, and simulates the state of the interactive controller to be a charging finishing state after receiving the charging finishing instruction sent by the main controller on the first communication daughter board card; when the stop mode 3 is used for finishing charging, the second simulation subunit simulates the interaction controller to be in a charging finishing state directly, and then receives a charging finishing instruction sent by the main controller on the first communication daughter board card; and after the charging is finished, the second simulation subunit simulates to send out a gun insertion connection mark of 0 through the first communication daughter board card.
When the power output controller is tested, the resistor daughter board card, the analog output daughter board card and the sixth communication daughter board card provide hardware support, and the specific implementation process is as follows:
the third analog subunit sets the input voltage of the module and controls the sixth communication daughter board card to send a request signal for reading the input voltage; the third analog subunit sets a resistance value corresponding to the surface temperature of the module by controlling the resistance daughter board card according to the sensor parameter table, and controls the sixth communication daughter board card to send a request for reading the surface temperature; the third analog subunit simulates the main controller and sends a request for setting output expected voltage and output current through the sixth communication daughter board card; the third analog subunit sets output voltage and output current to be expected voltage and expected current through the analog quantity output daughter card; the third analog subunit simulates the main controller and controls the sixth communication daughter board card to send out a request for reading output voltage and output current; the third analog subunit controls the sixth communication daughter board card to send a request for reading the state of the power module, and then obtains the recovery fault of the power output controller through the sixth communication daughter board card.
When the cooperative operation conditions of the interaction controller, the main controller and the power output controller are tested, under the condition that a first charging gun is used, the resistor daughter board card, the analog output daughter board card, the digital input daughter board card, the first serial port daughter board card, the second communication daughter board card, the fourth communication daughter board card, the fifth communication daughter board card and the sixth communication daughter board provide hardware support, and the specific implementation process is as follows:
the fourth simulation subunit outputs a resistance of 1k omega through the resistance daughter card, and simulates the first charging gun to be in a connection state; the fourth analog subunit controls the first serial port daughter board card to send out a preset card number; the fourth analog subunit detects that the number of the uploaded card number is consistent with the preset number value of the card number through the fifth communication daughter board card, and controls the fifth communication daughter board card to send an authentication success instruction; the fourth analog subunit detects that the locking pin of the electronic lock is at a high level and the unlocking pin is at a low level through the digital quantity input daughter board card; the fourth analog subunit controls the analog output daughter card to output an electronic lock locking feedback voltage of 12V; the fourth analog subunit detects that a voltage difference of more than 10V exists at two ends of a pin of the relay through the digital quantity input daughter board card; the fourth simulation subunit receives the charging request message through the second communication daughter board card, and then controls the second communication daughter board card to sequentially simulate the rechargeable automobile battery management system to reply the charging interaction message; the fourth analog subunit receives a request for setting output insulation voltage, discharging 0V voltage, pre-charging voltage, charging voltage and charging current through a sixth communication daughter board card; controlling the analog output daughter board card to set an insulation voltage, discharge a 0V voltage, pre-charge voltage, charge voltage and charge current in a charge interaction stage; the fourth analog subunit calculates accumulated charging electric quantity and sends the accumulated charging electric quantity through the second serial port daughter card; controlling the fifth communication sub-board card to simulate the charging service platform to send out the preset charging amount and the charging unit price, and changing to a charging ending state after the preset charging amount is reached; controlling the fifth communication sub-board card to simulate the charging service platform to remotely send a charging ending instruction to change into a charging ending state; controlling the second communication daughter board card to simulate the vehicle end to actively finish charging; after the charging is finished, after a power output request sent by the sixth communication daughter board card is received and is 0, the output charging voltage and the output charging current are set to be 0 through the analog quantity output daughter board card; and simulating the charging disconnection of the first charging gun by controlling the resistor to simulate the access resistance value of 0 ohm from the board card.
According to another exemplary embodiment of the application, a direct current charging pile system is further provided, which comprises a direct current charging pile and a test system of the direct current charging pile, wherein the direct current charging pile comprises a plurality of controllers; the test system described above is any of the systems described above.
In the direct-current charging pile system, the direct-current charging pile comprises a plurality of controllers, the test system is any one of the systems, the test system comprises a board card and a simulation unit, the board card is respectively electrically connected with the controllers of the direct-current charging pile, the simulation unit is electrically connected with the board card, the board card is used for sending simulation signals to the controllers, and the communication performance of the corresponding controllers is determined to be qualified under the condition that the board card receives feedback signals of the controllers. Compared with the direct current charging pile for the cooperative operation of a plurality of controllers in the prior art, a plurality of testing devices are required to test different controllers, and the problem of hardware resource waste is caused.
From the above description, it can be seen that the above-described embodiments of the present application achieve the following technical effects:
1) in the test system for the direct-current charging pile, the board cards are respectively electrically connected with the controllers of the direct-current charging pile, the simulation unit is electrically connected with the board cards, the board cards send simulation signals to the controllers, and the communication performance of the corresponding controllers is determined to be qualified under the condition that the board cards receive feedback signals of the controllers, wherein the feedback signals are generated by the controllers in response to the simulation signals. Compared with the direct-current charging pile for the cooperative operation of a plurality of controllers in the prior art, a plurality of testing devices are required to test different controllers, and the problem of hardware resource waste is caused.
2) In the above-mentioned direct current of this application fills electric pile system, above-mentioned direct current fills electric pile includes a plurality of controllers, above-mentioned test system is any kind of above-mentioned system, above-mentioned test system includes integrated circuit board and analog unit, above-mentioned integrated circuit board is connected with a plurality of controllers electricity of above-mentioned direct current charging pile respectively, above-mentioned analog unit is connected with above-mentioned integrated circuit board electricity, send analog signal to a plurality of above-mentioned controllers through above-mentioned integrated circuit board, under the condition of receiving the feedback signal of above-mentioned controller through above-mentioned integrated circuit board, confirm that the communication performance of corresponding above-mentioned controller is qualified. Compared with the direct current charging pile for the cooperative operation of a plurality of controllers in the prior art, a plurality of testing devices are required to test different controllers, and the problem of hardware resource waste is caused.
The above description is only a preferred embodiment of the present application and is not intended to limit the present application, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, improvement and the like made within the spirit and principle of the present application shall be included in the protection scope of the present application.
Claims (9)
1. A test system for a DC charging pile, the DC charging pile comprising a plurality of controllers, the test system comprising:
the board cards are used for being electrically connected with the controllers respectively;
the simulation unit is used for sending simulation signals to the controllers through the board cards, and determining that the corresponding communication performance of the controllers is qualified under the condition that the feedback signals responding to the simulation signals of the controllers are received through the board cards.
2. The system of claim 1, wherein the board comprises:
the serial port daughter board card is electrically connected with the analog unit, and is also used for being electrically connected with the plurality of controllers respectively;
the CAN bus communication daughter board card is electrically connected with the analog unit and is also used for being electrically connected with the plurality of controllers respectively;
the resistance daughter board card is used for receiving the simulation gun plugging instruction of the simulation unit and outputting a preset resistance value to the corresponding controller according to the simulation gun plugging instruction.
3. The system of claim 2, wherein the plurality of controllers includes an interactive controller, a power take-off controller, and a master controller, the simulation unit comprising:
the first simulation subunit is used for sending a first simulation signal to the interaction controller through the board card, determining whether a first feedback signal responding to the first simulation signal of the interaction controller can be received through the board card, and determining that the communication performance of the interaction controller is qualified under the condition that the first feedback signal is received;
the second analog subunit is used for sending a second analog signal to the main controller through the board card, determining whether a second feedback signal responding to the second analog signal of the main controller can be received through the board card, and determining that the communication performance of the main controller is qualified under the condition that the second feedback signal is received;
the third simulation subunit is used for sending a third simulation signal to the power output controller through the board card, determining whether a third feedback signal of the power output controller responding to the third simulation signal can be received through the board card, and determining that the communication performance of the power output controller is qualified under the condition that the third feedback signal is received;
a fourth simulation subunit, configured to be electrically connected to the interactive controller, the power output controller, and the main controller through the board card, respectively, where the fourth simulation subunit is configured to execute at least one of: receiving a fourth feedback signal of the interactive controller through the board card, generating a fourth analog signal according to the fourth feedback signal, and sending the fourth analog signal to the power output controller and/or the main controller through the board card; receiving a fifth feedback signal of the power output controller through the board card, generating a fifth analog signal according to the fifth feedback signal, and sending the fifth analog signal to the interactive controller and/or the main controller through the board card; and receiving a sixth feedback signal of the main controller through the board card, generating a sixth analog signal according to the sixth feedback signal, and sending the sixth analog signal to the interactive controller and/or the power output controller through the board card.
4. The system of claim 3, wherein the first analog subunit is configured to electrically connect to the interaction controller via the resistor daughter board, the serial port daughter board, and the CAN bus communication daughter board, respectively, wherein the first analog signal comprises a first predetermined resistance, a first analog sub-signal, and a second analog sub-signal, wherein the first feedback signal comprises a first feedback sub-signal and a second feedback sub-signal, wherein the first analog subunit is configured to output the first predetermined resistance to the interaction controller via the resistor daughter board, transmit the first analog sub-signal via the CAN bus communication daughter board, transmit the second analog sub-signal via the serial port daughter board, receive the first feedback sub-signal via the CAN bus communication daughter board, and receive the second feedback sub-signal via the serial port daughter board, the first analog sub-signal comprises an allowed charging signal, a first message signal and a first charging state signal, the first feedback sub-signal comprises a second message signal and a second charging state signal, the second analog sub-signal comprises a first voltage signal and a first current signal, and the second feedback sub-signal comprises a second voltage signal of the charging gun.
5. The system of claim 3, wherein the second analog subunit is configured to be electrically connected to the main controller via the serial port subunit and the CAN bus communication subunit, respectively, the second analog signal includes a third analog subunit and a fourth analog subunit, the second feedback signal includes a third feedback subunit, the second analog subunit is configured to send the third analog subunit via the CAN bus communication subunit, send the fourth analog subunit via the serial port subunit, and receive the third feedback subunit via the CAN bus communication subunit, wherein the third analog subunit includes an analog gun insertion signal, a charging enable signal, an insulation detection enable signal, a third voltage signal, a second current signal, a charging price signal, and a charging status feedback signal, the fourth analog sub-signal comprises an authentication card number and charging electric quantity, and the third feedback sub-signal comprises a CANFD card number, a charging starting signal and a charging ending signal.
6. The system of claim 3, wherein the third analog subunit is configured to be electrically connected to the power output controller via the resistor subunit, the serial port subunit, and the CAN bus communication subunit, respectively, the third analog signal includes a second predetermined resistor, a fifth analog subunit, a sixth analog subunit, and a fourth analog subunit, the third feedback signal includes a fourth feedback subunit, the third analog subunit is configured to output the second predetermined resistor to the power output controller via the resistor subunit, send the fifth analog subunit via the CAN bus communication subunit, send the sixth analog subunit via the serial port subunit, and receive the fourth feedback subunit via the CAN bus communication subunit, wherein the fifth analog subunit includes a fourth voltage signal, and a fourth analog signal, The method comprises the steps of obtaining a third current signal, obtaining a preset temperature signal and obtaining a fault state signal, wherein the sixth analog sub-signal comprises a fifth voltage signal and a fourth current signal, and the fourth feedback sub-signal comprises the fourth voltage signal, the third current signal, the preset temperature signal and the fault state signal.
7. The system of claim 2, wherein the serial port daughter board comprises a first serial port daughter board, a second serial port daughter board, an analog output daughter board, and a digital input daughter board, and the CAN bus communication daughter board comprises a plurality of communication daughter boards.
8. The system of any one of claims 1 to 7, further comprising a power board electrically connected to the board and the analog unit, respectively.
9. A direct current charging pile system, comprising:
the direct current charging pile comprises a plurality of controllers;
the test system of the direct current charging pile, wherein the test system is the system of any one of claims 1 to 8.
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