CN111551799A - Detection system and method for direct-current charger - Google Patents
Detection system and method for direct-current charger Download PDFInfo
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Abstract
A DC charger detection system and method, the system includes: the vehicle controller simulation device simulates a vehicle BMS control system and establishes message data interaction with a non-vehicle-mounted charger to be tested through a CAN line in a charging gun; simulating a vehicle fault state through each contact on the vehicle socket according to the received control instruction; the detection device acquires communication message data between the vehicle controller simulation device and the non-vehicle-mounted charger to be detected, converts the message data into a preset format, analyzes the consistency of the communication protocol between the vehicle controller simulation device and the non-vehicle-mounted charger according to a preset rule, and acquires and stores a communication protocol consistency analysis result; collecting waveform detection signals of each contact under the condition that each contact simulates a vehicle fault and contactor signals or front end voltage of the non-vehicle-mounted charger to be detected; obtaining an interoperation test detection result of the non-vehicle-mounted charger to be detected through a comparison result of a difference value between the waveform detection signal and the contactor signal or the front end voltage and a preset threshold value; the main control computer outputs a control instruction.
Description
Technical Field
The invention relates to the field of vehicle charging equipment detection, in particular to a direct current charger detection system and a direct current charger detection method.
Background
Under the promotion of relevant national policies, new energy electric vehicles are widely popularized, and the construction quantity of matched basic charging facilities is also increased rapidly. In the process, a plurality of problems of poor charging compatibility and poor safety are highlighted, and higher requirements are put on detection quality strictly. In addition, the electric vehicle charging station also needs to be periodically detected, which puts more urgent demands on improving the automation level of the detection equipment and the working efficiency of detection personnel.
The traditional charging facility detection method needs multiple and complex types of external equipment, needs manual wiring, takes long time, so that the detection efficiency is low, the phenomenon of wrong wiring is easy to occur, and personal injury and equipment damage are caused. During the interoperation test, an oscilloscope is needed to manually capture the waveform of each test, so that the stability is poor, the influence of human factors is large, and the interoperation test is not suitable for field detection; in the process of the communication protocol consistency test, an external CAN box is required to read messages, no message translation function is provided, and messages are translated one by one according to a standard, so that the detection efficiency is seriously influenced.
Disclosure of Invention
The invention aims to provide a direct current charger detection system and a direct current charger detection method suitable for field detection, which can realize automatic reading and message translation; test waveforms are automatically captured, conclusions are automatically judged, and manual intervention is not needed in the whole process, so that the field detection efficiency is effectively improved.
In order to achieve the above purpose, the detection system of the direct current charger provided by the invention specifically comprises a vehicle controller simulation device, a detection device and a main control computer; the vehicle controller simulation device is connected with a charging gun of the off-board charger to be tested through a vehicle socket, is used for simulating a vehicle BMS control system, and establishes message data interaction with the off-board charger to be tested through a CAN (controller area network) line in the charging gun; simulating a vehicle fault state through each contact on the vehicle socket according to the received control instruction; the detection device is respectively connected with the vehicle controller simulation device and the to-be-detected non-vehicle-mounted charger and is used for acquiring communication message data between the vehicle controller simulation device and the to-be-detected non-vehicle-mounted charger, translating the message data into a preset format, analyzing the consistency of communication protocols between the message data and the to-be-detected non-vehicle-mounted charger according to a preset rule, and acquiring and storing a communication protocol consistency analysis result; acquiring waveform detection signals of all contacts under the condition of vehicle fault and contactor signals or front end voltage of the to-be-detected off-board charger by the vehicle controller simulation device through all contacts on the vehicle socket according to the control instruction; calculating a difference value between the waveform detection signal and a contactor signal or a front end voltage, and obtaining an interoperation test detection result of the to-be-detected non-vehicle-mounted charger according to a comparison result of the difference value and a preset threshold value; and the master control machine and the vehicle controller simulation device are used for outputting control instructions.
In the above dc charger detecting system, preferably, the vehicle controller simulation means includes a vehicle BMS simulation circuit, a vehicle control simulation circuit, and a vehicle outlet; the vehicle BMS analog circuit is used for simulating a vehicle BMS control system and establishing message data interaction with the off-board charger to be tested through the vehicle socket and a CAN line in a charging gun of the off-board charger to be tested; the vehicle control simulation circuit is used for simulating a vehicle fault state through each contact on the vehicle socket according to the received control instruction; the vehicle socket is used for providing an interactive interface between the vehicle controller simulation device and the to-be-tested off-board charger.
In the above dc charger detection system, preferably, the detection system further includes a load module and a battery simulation device; the load module is connected with the vehicle controller simulation device and is used for simulating vehicle load; and the battery simulation device is connected with the vehicle controller simulation device and is used for simulating a vehicle battery module.
In the above dc charger detection system, preferably, the detection device includes a current sensor, the current sensor is configured to collect a first current signal between the off-board charger to be detected and the ac power supply, a second current signal between the vehicle controller simulation device and the load module, and a third current signal between the vehicle controller simulation device and the battery simulation device; the detection device compares the first current signal, the second current signal and the third current signal with preset threshold values respectively, and obtains a charging test detection result of the to-be-detected off-board charger according to the comparison result.
In the above dc charger detecting system, preferably, the detecting device includes a plurality of detecting units and a plurality of isolating switches, and the detecting units are connected to each other and controlled to be turned off or off by the isolating switches; the detection unit comprises a charging pile output socket, a direct-current power supply inlet, a direct-current power supply outlet, a control communication bus interface, a direct-current voltage display, an auxiliary voltage display, a detection point 1 display, an alternating-current emergency stop interface, a direct-current emergency stop interface, a communication monitoring interface, a K1K2 signal interface, an A + A-interface, a front-end voltage interface, an emergency stop button and an insulation resistance adjustment.
In the above dc charger detecting system, preferably, the vehicle socket includes a plurality of sets of control circuits, and the control circuits are configured to control on/off states of contacts on the vehicle socket through a control switch according to the control instruction; the number of control circuits is equal to the number of contacts on the vehicle receptacle; the vehicle outlet upper contacts include a DC + contact, a DC-contact, a PE contact, an S + contact, an S-contact, a CC1 contact, a CC2 contact, an A + contact, and an A-contact.
In the above dc charger detection system, preferably, acquisition interfaces are provided on both sides of the control switch; the detection device collects the waveform detection signals and the current signals of the corresponding contacts of the control switch under the condition that the vehicle controller simulation device simulates the vehicle fault state through the contacts on the vehicle socket according to the control instruction through the collection interface.
The invention also provides a detection method of the direct current charger, which comprises the following steps: acquiring communication message data between a simulated vehicle BMS control system and the non-vehicle-mounted charger to be tested; the method comprises the following steps that a simulated vehicle BMS control system establishes message data interaction with a to-be-tested non-vehicle-mounted charger in advance through a CAN line in a charging gun of the to-be-tested non-vehicle-mounted charger; the charging gun of the off-board charger to be tested is connected with a vehicle socket in advance; after the message data are translated into Chinese, analyzing the consistency of the communication protocol between the message data and the Chinese according to a preset rule, and obtaining and storing a communication protocol consistency analysis result; acquiring a control instruction, and simulating a vehicle fault state through each contact on the vehicle socket according to the control instruction; collecting waveform detection signals of all contacts under the condition that all the contacts simulate vehicle faults and contactor signals or front end voltage of the off-board charger to be detected; and calculating a difference value between the waveform detection signal and a contactor signal or a front end voltage, and obtaining an interoperation test detection result of the to-be-detected non-vehicle-mounted charger according to a comparison result of the difference value and a preset threshold value.
The invention also provides an electronic device comprising a memory, a processor and a computer program stored on the memory and executable on the processor, wherein the processor implements the method when executing the computer program.
The present invention also provides a computer-readable storage medium storing a computer program for executing the above method.
The invention has the beneficial technical effects that: the automatic reading and translation of the message can be realized; the test waveform is automatically grabbed, the conclusion is automatically judged, manual intervention is not needed in the whole process, the field detection efficiency is greatly improved, the test consistency is ensured, the labor and the cost are saved, and the test safety and accuracy are improved.
Drawings
The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this application, illustrate embodiment(s) of the invention and together with the description serve to explain the principles of the invention. In the drawings:
fig. 1 is a schematic structural diagram of a detection system of a dc charger according to an embodiment of the present invention;
fig. 2 is a schematic structural diagram of a detection apparatus according to an embodiment of the present invention;
FIG. 3 is a schematic structural diagram of a vehicle controller simulation apparatus according to an embodiment of the present invention;
fig. 4 is a schematic structural diagram of a detection system of a dc charger according to an embodiment of the present invention;
fig. 5 is a schematic flow chart illustrating a detection method of a dc charger according to an embodiment of the present invention;
fig. 6 is a schematic structural diagram of an electronic device according to an embodiment of the present invention.
Detailed Description
The following detailed description of the embodiments of the present invention will be provided with reference to the drawings and examples, so that how to apply the technical means to solve the technical problems and achieve the technical effects can be fully understood and implemented. It should be noted that, unless otherwise specified, the embodiments and features of the embodiments of the present invention may be combined with each other, and the technical solutions formed are within the scope of the present invention.
In the description of the present specification, the terms "comprising," "including," "having," "containing," and the like are used in an open-ended fashion, i.e., to mean including, but not limited to. Reference to the description of the terms "one embodiment," "a particular embodiment," "some embodiments," "for example," etc., means that a particular feature, structure, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the application. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. The sequence of steps involved in the embodiments is for illustrative purposes to illustrate the implementation of the present application, and the sequence of steps is not limited and can be adjusted as needed.
Additionally, the steps illustrated in the flow charts of the figures may be performed in a computer system such as a set of computer-executable instructions and, although a logical order is illustrated in the flow charts, in some cases, the steps illustrated or described may be performed in an order different than here.
Referring to fig. 1, the detection system for a dc charger provided by the present invention may specifically include a vehicle controller simulation device, a detection device and a main control computer; the vehicle controller simulation device is connected with a charging gun of the off-board charger to be tested through a vehicle socket, is used for simulating a vehicle BMS control system, and establishes message data interaction with the off-board charger to be tested through a CAN (controller area network) line in the charging gun; simulating a vehicle fault state through each contact on the vehicle socket according to the received control instruction; the detection device is respectively connected with the vehicle controller simulation device and the to-be-detected non-vehicle-mounted charger and is used for acquiring communication message data between the vehicle controller simulation device and the to-be-detected non-vehicle-mounted charger, translating the message data into a preset format, analyzing the consistency of communication protocols between the message data and the to-be-detected non-vehicle-mounted charger according to a preset rule, and acquiring and storing a communication protocol consistency analysis result; acquiring waveform detection signals of all contacts under the condition of vehicle fault and contactor signals or front end voltage of the to-be-detected off-board charger by the vehicle controller simulation device through all contacts on the vehicle socket according to the control instruction; calculating a difference value between the waveform detection signal and a contactor signal or a front end voltage, and obtaining an interoperation test detection result of the to-be-detected non-vehicle-mounted charger according to a comparison result of the difference value and a preset threshold value; and the master control machine and the vehicle controller simulation device are used for outputting control instructions. The DC charger detection system provided by the invention can be mainly applied to consistency detection of communication protocols and automatic detection of interoperation tests; in practical work, the comparison of the communication protocol consistency detection can be performed according to the method and requirements for detecting the direct current charger provided by the standard GB/T34657.1-2017 "conductive charging interoperability test specification for electric vehicles" and GB/T34658-.
In the above embodiment, the vehicle socket may include a plurality of sets of control circuits, and the control circuits are configured to control on/off states of contacts on the vehicle socket through a control switch according to the control instruction; the number of control circuits is equal to the number of contacts on the vehicle receptacle; the vehicle outlet upper contacts include a DC + contact, a DC-contact, a PE contact, an S + contact, an S-contact, a CC1 contact, a CC2 contact, an A + contact, and an A-contact. Wherein, the two sides of the control switch are provided with acquisition interfaces; the detection device collects the waveform detection signals and the current signals of the corresponding contacts of the control switch under the condition that the vehicle controller simulation device simulates the vehicle fault state through the contacts on the vehicle socket according to the control instruction through the collection interface. Specifically, in actual work, each contact of a charging interface can be simulated by using a standard charging gun socket, the simulation on the on-off of each contact of DC +, DC-, PE, S +, S-, CC1, CC2, A +, A-and switch S is met, and the simulation on the fault state of each path is realized; based on the consideration of data acquisition of each switch, 4mm standard acquisition interfaces are designed on two sides of each switch, so that the recording module can conveniently acquire information. Specifically, referring to fig. 2, the detection device has a R1 resistor, a R2 resistor, and a R3 resistor simulation module, and can realize the change of the resistances of R1, R2, and R3 by closing different switches, and can realize 5 stages in total of a nominal value of 1000 Ω, a maximum value of 1030 Ω, a minimum value of 970 Ω, an upper limit value of 2000 Ω, and a lower limit value of 500 Ω by simulating an equivalent resistance value; the detection device is provided with a pull-up voltage U1 simulation function at a detection point 1 and can simulate a pull-up voltage U1 voltage value at the detection point 1; the equipment is provided with a low-voltage auxiliary power access interface, so that the access function of the low-voltage auxiliary power of the charging pile can be realized, and the function of the A + and A-low-voltage auxiliary power of the direct-current charging pile is simulated; the simulation function of the insulation fault state of the charging interface DC + PE and DC-PE is met; the simulation of the fault state of each path of charging interfaces S +, S-, CC1, CC2, A + and A-to the ground can be realized; the equipment can simulate the suction states of K1, K2, K3, K4 and switch S, and is provided with K1, K2, K3, K4 and switch S signal acquisition interfaces to realize the acquisition of the on-off state of each interface; the high-precision current sensor is arranged in the device, and current collection can be realized. It should be noted that the circuit structure depicted in fig. 2 is only for facilitating understanding of the inventive concept provided by the present invention, and in practical operations, those skilled in the art may select, adjust or modify the positions, layout manners and connection relationships of the elements in the circuit structure according to actual needs, and the present invention is not limited herein.
Referring to fig. 3, in an embodiment of the present invention, the vehicle controller simulation apparatus may include a vehicle BMS simulation circuit, a vehicle control simulation circuit, and a vehicle socket; the vehicle BMS analog circuit is used for simulating a vehicle BMS control system and establishing message data interaction with the off-board charger to be tested through the vehicle socket and a CAN line in a charging gun of the off-board charger to be tested; the vehicle control simulation circuit is used for simulating a vehicle fault state through each contact on the vehicle socket according to the received control instruction; the vehicle socket is used for providing an interactive interface between the vehicle controller simulation device and the to-be-tested off-board charger. The structure has the functions of verifying whether the charger can safely and reliably communicate with the BMS and whether a communication protocol meets the standard requirement; therefore, a test platform of communication protocol consistency is established through the direct current charger detection system, and the CAN bus equipment and the message translation software are integrated, so that the detection efficiency is improved. In actual work, the charging socket is connected with the charging gun, message contents are collected in real time by utilizing a CAN (controller area network) line in the charging gun, and a CAN box and the CAN line do not need to be connected externally; when the messages are automatically read, the messages are translated into Chinese, each message is analyzed, and whether the communication messages meet the standard requirements or not is judged. And the communication message is stored in the system, so that the integrity of the test result is ensured, the field detection personnel can conveniently trace back the data, and the detection efficiency is greatly improved.
Referring to fig. 4, in an embodiment of the invention, the detection system further includes a load module and a battery simulator; the load module is connected with the vehicle controller simulation device and is used for simulating vehicle load; the battery simulation device is connected with the vehicle controller simulation device and is used for simulating a vehicle battery module; in this embodiment, the detection device includes a current sensor, where the current sensor is configured to collect a first current signal between the off-board charger to be detected and a power supply ac power supply, a second current signal between the vehicle controller simulation device and the load module, and a third current signal between the vehicle controller simulation device and the battery simulation device; the detection device compares the first current signal, the second current signal and the third current signal with preset threshold values respectively, and obtains a charging test detection result of the to-be-detected off-board charger according to the comparison result. Therefore, the charging efficiency and the related working conditions of the charging pile can be effectively detected through the direct current charger detection system.
In the above embodiment, the detection device may further include a plurality of detection units and a plurality of isolation switches, where the detection units are connected to each other and controlled to be turned off by the isolation switches; the detection unit comprises a charging pile output socket, a direct-current power supply inlet, a direct-current power supply outlet, a control communication bus interface, a direct-current voltage display, an auxiliary voltage display, a detection point 1 display, an alternating-current emergency stop interface, a direct-current emergency stop interface, a communication monitoring interface, a K1K2 signal interface, an A + A-interface, a front-end voltage interface, an emergency stop button, an insulation resistance adjustment and the like. In actual work, the detection units are mutually connected and work cooperatively based on the functions realized by the combination of the detection units and the isolating switches; the person skilled in the art can choose to use the invention according to the actual needs, and the invention is not limited herein too much.
Referring to fig. 5, the present invention further provides a method for detecting a dc charger, where the method includes: s501, a vehicle socket is connected with a charging gun of a non-vehicle-mounted charger to be tested in advance, and message data interaction is established between the vehicle socket and the non-vehicle-mounted charger to be tested through a CAN (controller area network) line in the charging gun by using a simulated vehicle BMS (battery management system); s502, communication message data between a simulated vehicle BMS control system and the non-vehicle-mounted charger to be tested are obtained, the message data are translated into Chinese, then the communication protocol consistency between the message data and the Chinese is analyzed according to a preset rule, and a communication protocol consistency analysis result is obtained and stored; s503, acquiring a control instruction, and simulating a vehicle fault state through each contact on the vehicle socket according to the control instruction; s504, collecting waveform detection signals of the contacts under the condition that the contacts simulate the fault of the vehicle and contactor signals or front end voltage of the off-board charger to be detected; s505, calculating a difference value between the waveform detection signal and a contactor signal or a front end voltage, and obtaining an interoperation test detection result of the to-be-detected non-vehicle-mounted charger according to a comparison result of the difference value and a preset threshold value. Therefore, the consistency detection of the communication protocol of the non-vehicle-mounted charger to be detected and the automatic detection of the interoperation test are completed, and certainly, in the actual work, related technicians in the field can select only one detection mode for detection according to actual needs, and the invention is not limited to the above.
The invention also provides an electronic device comprising a memory, a processor and a computer program stored on the memory and executable on the processor, wherein the processor implements the method when executing the computer program.
The present invention also provides a computer-readable storage medium storing a computer program for executing the above method.
The invention has the beneficial technical effects that: the automatic reading and translation of the message can be realized; the test waveform is automatically grabbed, the conclusion is automatically judged, manual intervention is not needed in the whole process, the field detection efficiency is greatly improved, the test consistency is ensured, the labor and the cost are saved, and the test safety and accuracy are improved.
As shown in fig. 6, the electronic device 600 may further include: communication module 110, input unit 120, audio processing unit 130, display 160, power supply 170. It is noted that the electronic device 600 does not necessarily include all of the components shown in FIG. 6; furthermore, the electronic device 600 may also comprise components not shown in fig. 6, which may be referred to in the prior art.
As shown in fig. 6, the central processor 100, sometimes referred to as a controller or operational control, may include a microprocessor or other processor device and/or logic device, the central processor 100 receiving input and controlling the operation of the various components of the electronic device 600.
The memory 140 may be, for example, one or more of a buffer, a flash memory, a hard drive, a removable media, a volatile memory, a non-volatile memory, or other suitable device. The information relating to the failure may be stored, and a program for executing the information may be stored. And the central processing unit 100 may execute the program stored in the memory 140 to realize information storage or processing, etc.
The input unit 120 provides input to the cpu 100. The input unit 120 is, for example, a key or a touch input device. The power supply 170 is used to provide power to the electronic device 600. The display 160 is used to display an object to be displayed, such as an image or a character. The display may be, for example, an LCD display, but is not limited thereto.
The memory 140 may be a solid state memory such as Read Only Memory (ROM), Random Access Memory (RAM), a SIM card, or the like. There may also be a memory that holds information even when power is off, can be selectively erased, and is provided with more data, an example of which is sometimes called an EPROM or the like. The memory 140 may also be some other type of device. Memory 140 includes buffer memory 141 (sometimes referred to as a buffer). The memory 140 may include an application/function storage section 142, and the application/function storage section 142 is used to store application programs and function programs or a flow for executing the operation of the electronic device 600 by the central processing unit 100.
The memory 140 may also include a data store 143, the data store 143 for storing data, such as contacts, digital data, pictures, sounds, and/or any other data used by the electronic device. The driver storage portion 144 of the memory 140 may include various drivers of the electronic device for communication functions and/or for performing other functions of the electronic device (e.g., messaging application, address book application, etc.).
The communication module 110 is a transmitter/receiver 110 that transmits and receives signals via an antenna 111. The communication module (transmitter/receiver) 110 is coupled to the central processor 100 to provide an input signal and receive an output signal, which may be the same as in the case of a conventional mobile communication terminal.
Based on different communication technologies, a plurality of communication modules 110, such as a cellular network module, a bluetooth module, and/or a wireless local area network module, may be provided in the same electronic device. The communication module (transmitter/receiver) 110 is also coupled to a speaker 131 and a microphone 132 via an audio processor 130 to provide audio output via the speaker 131 and receive audio input from the microphone 132 to implement general telecommunications functions. Audio processor 130 may include any suitable buffers, decoders, amplifiers and so forth. In addition, an audio processor 130 is also coupled to the central processor 100, so that recording on the local can be enabled through a microphone 132, and so that sound stored on the local can be played through a speaker 131.
As will be appreciated by one skilled in the art, embodiments of the present invention may be provided as a method, system, or computer program product. Accordingly, the present invention may take the form of an entirely hardware embodiment, an entirely software embodiment or an embodiment combining software and hardware aspects. Furthermore, the present invention may take the form of a computer program product embodied on one or more computer-usable storage media (including, but not limited to, disk storage, CD-ROM, optical storage, and the like) having computer-usable program code embodied therein.
The present invention is described with reference to flowchart illustrations and/or block diagrams of methods, apparatus (systems), and computer program products according to embodiments of the invention. It will be understood that each flow and/or block of the flow diagrams and/or block diagrams, and combinations of flows and/or blocks in the flow diagrams and/or block diagrams, can be implemented by computer program instructions. These computer program instructions may be provided to a processor of a general purpose computer, special purpose computer, embedded processor, or other programmable data processing apparatus to produce a machine, such that the instructions, which execute via the processor of the computer or other programmable data processing apparatus, create means for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.
These computer program instructions may also be stored in a computer-readable memory that can direct a computer or other programmable data processing apparatus to function in a particular manner, such that the instructions stored in the computer-readable memory produce an article of manufacture including instruction means which implement the function specified in the flowchart flow or flows and/or block diagram block or blocks.
These computer program instructions may also be loaded onto a computer or other programmable data processing apparatus to cause a series of operational steps to be performed on the computer or other programmable apparatus to produce a computer implemented process such that the instructions which execute on the computer or other programmable apparatus provide steps for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.
The above-mentioned embodiments are intended to illustrate the objects, technical solutions and advantages of the present invention in further detail, and it should be understood that the above-mentioned embodiments are only exemplary embodiments of the present invention, and are not intended to limit the scope of the present invention, and any modifications, equivalent substitutions, improvements and the like made within the spirit and principle of the present invention should be included in the scope of the present invention.
Claims (10)
1. A detection system for a direct current charger is characterized by comprising a vehicle controller simulation device, a detection device and a main control computer;
the vehicle controller simulation device is connected with a charging gun of the off-board charger to be tested through a vehicle socket, is used for simulating a vehicle BMS control system, and establishes message data interaction with the off-board charger to be tested through a CAN (controller area network) line in the charging gun; simulating a vehicle fault state through each contact on the vehicle socket according to the received control instruction;
the detection device is respectively connected with the vehicle controller simulation device and the to-be-detected non-vehicle-mounted charger and is used for acquiring communication message data between the vehicle controller simulation device and the to-be-detected non-vehicle-mounted charger, translating the message data into a preset format, analyzing the consistency of communication protocols between the message data and the to-be-detected non-vehicle-mounted charger according to a preset rule, and acquiring and storing a communication protocol consistency analysis result; acquiring waveform detection signals of all contacts under the condition of vehicle fault and contactor signals or front end voltage of the to-be-detected off-board charger by the vehicle controller simulation device through all contacts on the vehicle socket according to the control instruction; calculating a difference value between the waveform detection signal and a contactor signal or a front end voltage, and obtaining an interoperation test detection result of the to-be-detected non-vehicle-mounted charger according to a comparison result of the difference value and a preset threshold value;
and the master control machine and the vehicle controller simulation device are used for outputting control instructions.
2. The dc charger detection system of claim 1, wherein said vehicle controller simulation means comprises a vehicle BMS simulation circuit, a vehicle control simulation circuit, and a vehicle outlet;
the vehicle BMS analog circuit is used for simulating a vehicle BMS control system and establishing message data interaction with the off-board charger to be tested through the vehicle socket and a CAN line in a charging gun of the off-board charger to be tested;
the vehicle control simulation circuit is used for simulating a vehicle fault state through each contact on the vehicle socket according to the received control instruction;
the vehicle socket is used for providing an interactive interface between the vehicle controller simulation device and the to-be-tested off-board charger.
3. The dc charger detection system of claim 1, further comprising a load module and a battery simulator; the load module is connected with the vehicle controller simulation device and is used for simulating vehicle load; and the battery simulation device is connected with the vehicle controller simulation device and is used for simulating a vehicle battery module.
4. The system according to claim 3, wherein the detection device comprises a current sensor, the current sensor is configured to collect a first current signal between the off-board charger to be detected and an ac power supply, a second current signal between the vehicle controller simulation device and the load module, and a third current signal between the vehicle controller simulation device and the battery simulation device; the detection device compares the first current signal, the second current signal and the third current signal with preset threshold values respectively, and obtains a charging test detection result of the to-be-detected off-board charger according to the comparison result.
5. The detection system of claim 1, wherein the detection device comprises a plurality of detection units and a plurality of isolation switches, and the detection units are connected with each other and controlled to be switched off through the isolation switches; the detection unit comprises a charging pile output socket, a direct-current power supply inlet, a direct-current power supply outlet, a control communication bus interface, a direct-current voltage display, an auxiliary voltage display, a detection point 1 display, an alternating-current emergency stop interface, a direct-current emergency stop interface, a communication monitoring interface, a K1K2 signal interface, an A + A-interface, a front-end voltage interface, an emergency stop button and an insulation resistance adjustment.
6. The direct-current charger detection system of claim 1, wherein the vehicle socket comprises a plurality of sets of control circuits, and the control circuits are used for controlling the on-off state of contacts on the vehicle socket through a control switch according to the control instruction; the number of control circuits is equal to the number of contacts on the vehicle receptacle; the vehicle outlet upper contacts include a DC + contact, a DC-contact, a PE contact, an S + contact, an S-contact, a CC1 contact, a CC2 contact, an A + contact, and an A-contact.
7. The direct current charger detection system of claim 6, wherein acquisition interfaces are disposed on two sides of the control switch; the detection device collects the waveform detection signals and the current signals of the corresponding contacts of the control switch under the condition that the vehicle controller simulation device simulates the vehicle fault state through the contacts on the vehicle socket according to the control instruction through the collection interface.
8. A detection method for a direct current charger is characterized by comprising the following steps:
acquiring communication message data between a simulated vehicle BMS control system and a non-vehicle-mounted charger to be tested; the method comprises the following steps that a simulated vehicle BMS control system establishes message data interaction with a to-be-tested non-vehicle-mounted charger in advance through a CAN line in a charging gun of the to-be-tested non-vehicle-mounted charger; the charging gun of the off-board charger to be tested is connected with a vehicle socket in advance;
after the message data are translated into a preset format, analyzing the consistency of the communication protocol between the message data and the preset format according to a preset rule, and obtaining and storing a communication protocol consistency analysis result;
acquiring a control instruction, and simulating a vehicle fault state through each contact on the vehicle socket according to the control instruction;
collecting waveform detection signals of all contacts under the condition that all the contacts simulate vehicle faults and contactor signals or front end voltage of the off-board charger to be detected;
and calculating a difference value between the waveform detection signal and a contactor signal or a front end voltage, and obtaining an interoperation test detection result of the to-be-detected non-vehicle-mounted charger according to a comparison result of the difference value and a preset threshold value.
9. An electronic device comprising a memory, a processor, and a computer program stored on the memory and executable on the processor, wherein the processor implements the method of claim 8 when executing the computer program.
10. A computer-readable storage medium storing a computer program for executing the method of claim 8.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010273879.2A CN111551799A (en) | 2020-04-09 | 2020-04-09 | Detection system and method for direct-current charger |
| PCT/CN2020/131676 WO2021203714A1 (en) | 2020-04-09 | 2020-11-26 | Direct current charger detection system and method |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202010273879.2A CN111551799A (en) | 2020-04-09 | 2020-04-09 | Detection system and method for direct-current charger |
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| CN202010273879.2A Pending CN111551799A (en) | 2020-04-09 | 2020-04-09 | Detection system and method for direct-current charger |
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| CN (1) | CN111551799A (en) |
| WO (1) | WO2021203714A1 (en) |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN112014673A (en) * | 2020-08-31 | 2020-12-01 | 广东电网有限责任公司广州供电局 | Direct current charging pile detection device and method |
| CN112362983A (en) * | 2020-10-10 | 2021-02-12 | 东风时代(武汉)电池系统有限公司 | Battery management system diagnosis method, upper computer and system |
| WO2021203714A1 (en) * | 2020-04-09 | 2021-10-14 | 国网冀北电力有限公司计量中心 | Direct current charger detection system and method |
| CN113671372A (en) * | 2021-08-25 | 2021-11-19 | 武汉元丰汽车电控系统股份有限公司 | Oil return pump motor detection method, system, device, controller and storage medium |
| CN113866546A (en) * | 2021-10-08 | 2021-12-31 | 成都产品质量检验研究院有限责任公司 | Protocol consistency test and automatic message analysis system for non-vehicle-mounted charger |
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| JP2006050759A (en) * | 2004-08-04 | 2006-02-16 | Hitachi Industries Co Ltd | Automatic testing device |
| CN107255759A (en) * | 2017-06-09 | 2017-10-17 | 国网重庆市电力公司电力科学研究院 | A kind of electric vehicle alternating-current charging pile automatic checkout system |
| CN109116132A (en) * | 2018-06-15 | 2019-01-01 | 国网电动汽车服务有限公司 | A kind of charging equipment remote detecting system and its detection method |
| CN109444566B (en) * | 2018-09-03 | 2023-08-11 | 中国电力科学研究院有限公司 | Electric automobile charging facility detection equipment and method |
| CN109212351A (en) * | 2018-09-12 | 2019-01-15 | 国网重庆市电力公司电力科学研究院 | A kind of electric car non-on-board charger automatic checkout system and method |
| CN212391553U (en) * | 2020-04-09 | 2021-01-22 | 国网冀北电力有限公司计量中心 | Direct current charger detecting system |
| CN111551799A (en) * | 2020-04-09 | 2020-08-18 | 国网冀北电力有限公司计量中心 | Detection system and method for direct-current charger |
-
2020
- 2020-04-09 CN CN202010273879.2A patent/CN111551799A/en active Pending
- 2020-11-26 WO PCT/CN2020/131676 patent/WO2021203714A1/en active Application Filing
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| WO2021203714A1 (en) * | 2020-04-09 | 2021-10-14 | 国网冀北电力有限公司计量中心 | Direct current charger detection system and method |
| CN112014673A (en) * | 2020-08-31 | 2020-12-01 | 广东电网有限责任公司广州供电局 | Direct current charging pile detection device and method |
| CN112014673B (en) * | 2020-08-31 | 2023-10-20 | 广东电网有限责任公司广州供电局 | DC charging pile detection equipment and method |
| CN112362983A (en) * | 2020-10-10 | 2021-02-12 | 东风时代(武汉)电池系统有限公司 | Battery management system diagnosis method, upper computer and system |
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| CN113866546A (en) * | 2021-10-08 | 2021-12-31 | 成都产品质量检验研究院有限责任公司 | Protocol consistency test and automatic message analysis system for non-vehicle-mounted charger |
| CN113866546B (en) * | 2021-10-08 | 2022-11-15 | 成都产品质量检验研究院有限责任公司 | Protocol consistency test and automatic message analysis system for non-vehicle-mounted charger |
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