Vehicle charging test method and device, electronic equipment, storage medium and platform

Abstract

The invention discloses a vehicle charging test method and device, electronic equipment, a storage medium and a platform, and relates to the field of charging tests.The method comprises the steps that a vehicle charging standard is obtained; designing and manufacturing a vehicle charging system according to the vehicle charging standard; setting a vehicle charging test strategy according to the vehicle charging standard; according to the vehicle charging test strategy, testing the manufactured vehicle charging system, and judging whether the vehicle charging system meets the vehicle charging standard or not; the step of judging whether the detected vehicle meets the vehicle charging standard comprises the substeps of judging whether the detected vehicle has the defects of vehicle charging system manufacturing, judging whether the detected vehicle has the defects of vehicle charging system design or / and judging whether the detected vehicle has the defects of a vehicle charging system charging test strategy; and updating the design of the vehicle charging system, the manufacturing of the vehicle charging system or / and the test strategy for testing the vehicle charging according to the negative conclusion of the judgment.

Description

Technical Field

[0001] The present application relates to the field of charging testing, and in particular to a vehicle charging testing method, a vehicle charging port, a vehicle charging testing device, an electronic device, a storage medium and a platform. Background Art

[0002] The battery that powers new energy vehicles is its core component, and its safety performance is directly related to the safety performance of the entire vehicle. During the charging process, the temperature, voltage and other parameters of the battery may change. If there is an abnormality or failure in the battery that cannot be promptly checked and stopped, it may cause damage to the charging equipment, or even cause serious consequences such as spontaneous combustion of the vehicle.

[0003] Therefore, a vehicle charging test solution is needed. After the charging port is docked and the charging program is started, the charging test is automatically performed to promptly detect potential risk issues with the battery and charging system. The safety of the vehicle and charging equipment during the charging process is ensured by timely stopping losses. It is also necessary to ensure that charging equipment produced by different manufacturers can communicate normally with the vehicle to ensure product compatibility. Summary of the invention

[0004] The purpose of the present invention is to provide a vehicle charging test method, a vehicle charging port, a vehicle charging test device, an electronic device, a storage medium and a platform, which at least solve the problem of charging self-inspection, the problem of timely stopping losses, and one of the technical problems of product compatibility.

[0005] The present invention provides the following scheme:

[0006] According to one aspect of the present invention, a vehicle charging test method is provided, the vehicle charging test method comprising:

[0007] Obtain vehicle charging standards;

[0008] Design vehicle charging systems and manufacture vehicle charging systems according to vehicle charging standards;

[0009] Set vehicle charging test strategy according to vehicle charging standards;

[0010] According to the vehicle charging test strategy, test the manufactured vehicle charging system to determine whether it meets the vehicle charging standards;

[0011] The determination of whether the vehicle charging standard is met includes determining whether the tested vehicle has defects in the manufacturing of the vehicle charging system, determining whether the tested vehicle has defects in the design of the vehicle charging system, and / or determining whether the tested vehicle has defects in the charging test strategy of the vehicle charging system;

[0012] Based on the negative conclusion of the judgment, update the design of the vehicle charging system, the manufacture of the vehicle charging system or / and the test strategy for testing vehicle charging.

[0013] Furthermore, the designed vehicle charging system includes:

[0014] Design a positive loop and a negative loop to establish a circuit for delivering current to the vehicle to charge the battery;

[0015] Design a low-voltage auxiliary power positive and a low-voltage auxiliary power negative to establish a loop for transmitting current to the vehicle to wake up the control system;

[0016] Design the SCAN communication line positive and SCAN communication line negative to establish communication between the vehicle and the charging device;

[0017] Design a charging confirmation circuit to confirm the current transmission status of the positive and negative loops, and to confirm the current transmission status of the positive and negative low-voltage auxiliary power supplies;

[0018] Design PE circuit for protective grounding.

[0019] Furthermore, the manufacturing of the vehicle charging system includes:

[0020] According to the circuit that transmits current to the vehicle for battery charging, the circuit that transmits current to the vehicle for waking up the control system, the communication between the vehicle and the charging device is established, the current transmission status of the positive and negative circuits is confirmed, the current transmission status of the positive and negative low-voltage auxiliary power supply is confirmed, and the protective grounding is ensured to ensure the standardized packaging of the charging port;

[0021] The standardized packaging of the charging port includes standardized packaging of wire diameter, insulation, heat dissipation, anti-interference, full contact of contacts, charging port connection direction, and terminal distribution position;

[0022] Based on the standardized packaging of the charging port, the corresponding vehicle charging system is designed and manufactured to connect the battery, control system, communication module and protective ground circuit.

[0023] Furthermore, the vehicle charging test includes:

[0024] Test items for simulating charging, current loss, auxiliary power loss, PE loss, loss of transmission current status, and SCAN communication loss;

[0025] According to the failure of any test in the test items, the corresponding maintenance process is initiated;

[0026] The test ends upon the success of all tests in the test project.

[0027] Furthermore, the vehicle charging test strategy includes:

[0028] According to the test items of simulated charging, the current is transmitted to the vehicle through the positive and negative loops;

[0029] According to the current loss test items, simulate the current loss scenario during the process of transmitting current to the vehicle through the positive and negative loops;

[0030] According to the current loss, determine whether the vehicle cuts off the charging process;

[0031] If,cut off, the test passes;

[0032] If it is not cut off, the current is forcibly cut off and the corresponding maintenance process is started.

[0033] Furthermore, the vehicle charging test strategy also includes:

[0034] According to the auxiliary power loss test items, simulate the current loss scenario during the process of transmitting current to the vehicle through the low-voltage auxiliary power positive and low-voltage auxiliary power negative;

[0035] According to the current loss, determine whether the vehicle cuts off the charging process;

[0036] If,cut off, the test passes;

[0037] If it is not cut off, the current is forcibly cut off and the corresponding maintenance process is started.

[0038] Furthermore, the vehicle charging test strategy also includes:

[0039] According to the PE loss test items, simulate the PE loss scenario of disconnecting the ground;

[0040] According to the loss of PE, determine whether the vehicle cuts off the charging process;

[0041] If,cut off, the test passes;

[0042] If it is not cut off, the current is forcibly cut off and the corresponding maintenance process is started.

[0043] Furthermore, the vehicle charging test strategy also includes:

[0044] According to the test item for confirming the loss of the transmission current state, simulate the scenario of disconnecting the transmission current state loop for confirming the positive low-voltage auxiliary power supply and the negative low-voltage auxiliary power supply;

[0045] According to the loss of the transmission current state, it is determined whether the vehicle has cut off the charging process and the transmission current state of the low-voltage auxiliary power supply positive and the low-voltage auxiliary power supply negative is confirmed again;

[0046] If, it is cut off and confirmed again, the test is passed;

[0047] If the current is not cut off and / or not confirmed again, the current is forcibly cut off and the corresponding maintenance process is started.

[0048] Furthermore, the vehicle charging test strategy also includes:

[0049] According to the test items of SCAN communication loss, simulate the scenario of disconnection and communication loss;

[0050] Determine whether the vehicle has cut off the charging process based on communication loss;

[0051] If,cut off, the test passes;

[0052] If it is not cut off, the current is forcibly cut off and the corresponding maintenance process is started.

[0053] Further, the vehicle charging system also includes: a vehicle charging system with two charging ports;

[0054] Depending on the charging status of the single charging port mode or the dual charging port mode, execute test items of simulated charging, current loss, auxiliary power loss, PE loss, transmission current loss confirmation and SCAN communication loss.

[0055] According to two aspects of the present invention, there is provided a vehicle charging port, the vehicle charging port comprising:

[0056] DC+ and DC- connection terminals for the positive and negative loops that deliver current to the vehicle for battery charging;

[0057] A+ and A- connection terminals of the low-voltage auxiliary power positive and low-voltage auxiliary power negative for delivering current to the vehicle to wake up the control system;

[0058] Establish the S+ and S- connection terminals of the positive and negative SCAN communication lines for communication between the vehicle and the charging device;

[0059] The CC1 connection terminal confirms the current status of the positive and negative loops;

[0060] A CC2 connection terminal for confirming the current delivery status of the low voltage auxiliary power supply positive and the low voltage auxiliary power supply negative;

[0061] PE connection terminal for protective grounding;

[0062] The connection ends are insulated and encapsulated in the charging port;

[0063] The packaging style is based on a synchronous, unidirectional and locked connection of power and signals between the vehicle and the charging equipment.

[0064] According to three aspects of the present invention, a vehicle charging test device is provided, the vehicle charging test device comprising:

[0065] A standard acquisition module is used to obtain vehicle charging standards;

[0066] Charging system module, used to design and manufacture vehicle charging systems according to vehicle charging standards;

[0067] A test strategy module, used to set a vehicle charging test strategy according to the vehicle charging standard;

[0068] A vehicle judgment module is used to test the manufactured vehicle charging system according to the vehicle charging test strategy to determine whether it meets the vehicle charging standards;

[0069] The determination of whether the vehicle charging standard is met includes determining whether the tested vehicle has defects in the manufacturing of the vehicle charging system, determining whether the tested vehicle has defects in the design of the vehicle charging system, and / or determining whether the tested vehicle has defects in the charging test strategy of the vehicle charging system;

[0070] The test update module is used to update the design of the vehicle charging system, the manufacture of the vehicle charging system or / and the test strategy for testing vehicle charging according to the negative conclusion of the judgment.

[0071] According to four aspects of the present invention, there is provided an electronic device, comprising: a processor, a communication interface, a memory and a communication bus, wherein the processor, the communication interface and the memory communicate with each other via the communication bus;

[0072] A computer program is stored in the memory, and when the computer program is executed by the processor, the processor executes the steps of the vehicle charging test method.

[0073] According to five aspects of the present invention, there is provided a computer-readable storage medium, comprising: a computer program executable by an electronic device is stored therein, and when the computer program runs on the electronic device, the electronic device executes the steps of the vehicle charging test method.

[0074] According to six aspects of the present invention, a platform is provided, including:

[0075] An electronic device, used to implement the steps of the vehicle charging test method;

[0076] A processor, the processor runs a program, and when the program runs, the steps of the vehicle charging test method are executed from the data output by the electronic device;

[0077] The storage medium is used to store a program, and when the program is run, the steps of the vehicle charging test method are executed for the data output from the electronic device.

[0078] Through the above scheme, the following beneficial technical effects are obtained:

[0079] This application monitors the charging working status after the charging port is plugged in, and promptly discovers the fault state of the charging gun after connection, thereby preventing the blind spot of the fault phenomenon caused by the lack of an observation window after the charging gun is connected, and further causing damage to the charging equipment and the vehicle.

[0080] The present application stops the loss in time by disconnecting the transmission of charging current, thereby preventing the occurrence of risks such as current coulomb heating, voltage breakdown, and shell leakage of battery components.

[0081] This application monitors the charging working status in the working modes of single charging gun and dual charging gun to prevent the risk of damage to charging equipment and vehicles while retaining the charging process as much as possible. BRIEF DESCRIPTION OF THE DRAWINGS

[0082] Figure 1 It is a flow chart of a vehicle charging test method provided by one or more embodiments of the present invention.

[0083] Figure 2 It is a structural diagram of a vehicle charging port provided by one or more embodiments of the present invention.

[0084] Figure 3 It is a structural diagram of a vehicle charging test device provided by one or more embodiments of the present invention.

[0085] Figure 4 It is a schematic diagram of a vehicle charging test process according to a specific embodiment of the present invention.

[0086] Figure 5 It is a schematic diagram of a vehicle charging port architecture according to a specific embodiment of the present invention.

[0087] Figure 6 It is a structural block diagram of an electronic device of a vehicle charging test method provided by one or more embodiments of the present invention. DETAILED DESCRIPTION

[0088] The technical solution of the present invention will be described clearly and completely below in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0089] Figure 1 It is a flow chart of a vehicle charging test method provided by one or more embodiments of the present invention.

[0090] like Figure 1 The vehicle charging test method shown includes:

[0091] Step S1, obtaining vehicle charging standards;

[0092] Step S2, designing a vehicle charging system and manufacturing the vehicle charging system according to the vehicle charging standard;

[0093] Step S3, setting a vehicle charging test strategy according to the vehicle charging standard;

[0094] Step S4, testing the manufactured vehicle charging system according to the vehicle charging test strategy to determine whether it meets the vehicle charging standard;

[0095] Step S5, determining whether the vehicle charging standard is met includes determining whether the tested vehicle has a manufacturing defect of the vehicle charging system, determining whether the tested vehicle has a design defect of the vehicle charging system, and / or determining whether the tested vehicle has a charging test strategy defect of the vehicle charging system;

[0096] Step S6, based on the negative conclusion of the judgment, updating the design of the vehicle charging system, the manufacture of the vehicle charging system and / or the test strategy for testing the vehicle charging.

[0097] Specifically, in this embodiment, the vehicle charging system is designed and manufactured in accordance with the provisions of the national standard GBT 27930-2015 to ensure that the product is compatible with charging equipment from different manufacturers. On the basis of the national standard GBT 27930-2015, the preset test items for the vehicle's own charging are set, including the handling measures after the test finds a fault, and a vehicle charging test strategy is constructed. The preset test items include whether they meet the test items in the vehicle charging standard, and also include test items such as current anomalies, voltage anomalies, and communication anomalies based on the design and manufacturing status of the vehicle. In addition to taking protective measures for the current vehicle through the problems found in the test, defects in the design, defects in manufacturing, or defects in the test strategy are improved based on the problems found.

[0098] In this embodiment, designing a vehicle charging system includes:

[0099] Design a positive loop and a negative loop to establish a circuit for delivering current to the vehicle to charge the battery;

[0100] Design a low-voltage auxiliary power positive and a low-voltage auxiliary power negative to establish a loop for transmitting current to the vehicle to wake up the control system;

[0101] Design the SCAN communication line positive and SCAN communication line negative to establish communication between the vehicle and the charging device;

[0102] Design a charging confirmation circuit to confirm the current transmission status of the positive and negative loops, and to confirm the current transmission status of the positive and negative low-voltage auxiliary power supplies;

[0103] Design PE circuit for protective grounding.

[0104] Specifically, the design of the vehicle charging system is mainly used for charging and ensuring charging. This involves the charging circuit connection and communication connection with the charging equipment, ensuring the compatibility and synchronization of the charging equipment serving the vehicle, and ensuring the safety of the equipment and personnel.

[0105] In this embodiment, the design is carried out according to the functions specified in the national standard GBT 27930-2015. The positive and negative loops are designed for charging the vehicle battery; the positive and negative low-voltage auxiliary power supplies are designed for waking up the control system; because the battery works under the management of the control system, the control system must at least be in an activated state before the next step of charging circuit conduction can be performed. One possibility is not ruled out, because the battery power is insufficient, the control system cannot be started automatically.

[0106] The positive SCAN communication line and the negative SCAN communication line are designed for communication between the vehicle and the charging device. Through the communication between the vehicle and the charging device, the charging device can be charged according to the needs of the vehicle, or the vehicle can be charged according to the charging capacity of the charging device.

[0107] A charging confirmation circuit is designed to confirm the current transmission status of the positive and negative loops, as well as the current transmission status of the positive and negative low-voltage auxiliary power supplies. Since the charging gun may have two states: poor connection at the connection end and poor equipment operation, it is necessary to expand the detection points to distinguish between the two situations.

[0108] In this embodiment, manufacturing a vehicle charging system includes:

[0109] According to the circuit that transmits current to the vehicle for battery charging, the circuit that transmits current to the vehicle for waking up the control system, the communication between the vehicle and the charging device is established, the current transmission status of the positive and negative circuits is confirmed, the current transmission status of the positive and negative low-voltage auxiliary power supply is confirmed, and the protective grounding is ensured to ensure the standardized packaging of the charging port;

[0110] The standardized packaging of the charging port includes the standardized packaging of wire diameter, insulation, heat dissipation, anti-interference, full contact of contacts, charging port connection direction, and terminal distribution position;

[0111] Based on the standardized packaging of the charging port, the corresponding vehicle charging system is designed and manufactured to connect the battery, control system, communication module and protective ground circuit.

[0112] Specifically, it is manufactured in accordance with the process specified in the national standard GBT 27930-2015. For example, in addition to ensuring the correct and stable use of the charging port, it also ensures the safety of electrical performance and the connection compatibility between vehicle products and charging equipment products.

[0113] In this embodiment, the vehicle charging test includes:

[0114] Test items for simulating charging, current loss, auxiliary power loss, PE loss, loss of transmission current status, and SCAN communication loss;

[0115] According to the failure of any test in the test items, the corresponding maintenance process is initiated;

[0116] The test ends upon the success of all tests in the test project.

[0117] Specifically, in the charging test, tests for abnormal states of various functions are set. Each test item can affect the charging process separately. If any test item fails, the corresponding maintenance process can be initiated without having to complete all test items.

[0118] In this embodiment, the vehicle charging test strategy includes:

[0119] According to the test items of simulated charging, the current is transmitted to the vehicle through the positive and negative loops;

[0120] According to the current loss test items, simulate the current loss scenario during the process of transmitting current to the vehicle through the positive and negative loops;

[0121] According to the current loss, determine whether the vehicle cuts off the charging process;

[0122] If,cut off, the test passes;

[0123] If it is not cut off, the current is forcibly cut off and the corresponding maintenance process is started.

[0124] Specifically, in the test project of simulated charging, the workbench can be used to simulate the state of positive and negative current transmission in the loop for detection. Usually the current will change continuously, large or small, depending on the battery power state, and the current loss scenario is only when charging is completed and in abnormal conditions (such as overcurrent protection, poor contact, etc.). In order to prevent the deterioration of abnormal conditions, the current can be forcibly cut off and the corresponding maintenance process can be initiated. After troubleshooting the fault, the next round of work can be carried out.

[0125] In this embodiment, the vehicle charging test strategy also includes:

[0126] According to the auxiliary power loss test items, simulate the current loss scenario during the process of transmitting current to the vehicle through the low-voltage auxiliary power positive and low-voltage auxiliary power negative;

[0127] According to the current loss, determine whether the vehicle cuts off the charging process;

[0128] If,cut off, the test passes;

[0129] If it is not cut off, the current is forcibly cut off and the corresponding maintenance process is started.

[0130] Specifically, in the auxiliary power loss test item, the state of the low-voltage auxiliary power positive and low-voltage auxiliary power negative transmission current is simulated for detection. In order to prevent the deterioration of abnormal conditions, the current can be forcibly cut off and the corresponding maintenance process can be initiated. After troubleshooting the fault, the next round of work can be carried out.

[0131] In this embodiment, the vehicle charging test strategy also includes:

[0132] According to the PE loss test items, simulate the PE loss scenario of disconnecting the ground;

[0133] According to the loss of PE, determine whether the vehicle cuts off the charging process;

[0134] If,cut off, the test passes;

[0135] If it is not cut off, the current is forcibly cut off and the corresponding maintenance process is started.

[0136] Specifically, in the PE loss test item, the line fault of PE loss is simulated. In order to prevent the abnormal situation from deteriorating, the current can be forcibly cut off and the corresponding maintenance process can be started. After the fault of this item is checked, the next round of work can be carried out.

[0137] In this embodiment, the vehicle charging test strategy also includes:

[0138] According to the test item for confirming the loss of the transmission current state, simulate the scenario of disconnecting the transmission current state loop for confirming the positive low-voltage auxiliary power supply and the negative low-voltage auxiliary power supply;

[0139] According to the loss of the transmission current state, it is determined whether the vehicle has cut off the charging process and the transmission current state of the low-voltage auxiliary power supply positive and the low-voltage auxiliary power supply negative is confirmed again;

[0140] If, it is cut off and confirmed again, the test is passed;

[0141] If the current is not cut off and / or not confirmed again, the current is forcibly cut off and the corresponding maintenance process is started.

[0142] Specifically, in the test item for confirming the loss of the transmission current status, the scenario of disconnecting the transmission current status loop of the positive and negative low-voltage auxiliary power supply is simulated. In order to prevent the deterioration of the abnormal situation, the current can be forcibly cut off and the corresponding maintenance process can be initiated. After troubleshooting the fault, the next round of work can be carried out.

[0143] In this embodiment, the vehicle charging test strategy also includes:

[0144] According to the test items of SCAN communication loss, simulate the scenario of disconnection and communication loss;

[0145] Determine whether the vehicle has cut off the charging process based on communication loss;

[0146] If,cut off, the test passes;

[0147] If it is not cut off, the current is forcibly cut off and the corresponding maintenance process is started.

[0148] Specifically, in the SCAN communication loss test project, the disconnection and loss of communication scenario is simulated. In order to prevent the abnormal situation from deteriorating, the current can be forcibly cut off and the corresponding maintenance process can be initiated. After troubleshooting the fault, the next round of work can be carried out.

[0149] In this embodiment, the vehicle charging system further includes: a vehicle charging system with two charging ports;

[0150] Depending on the charging status of the single charging port mode or the dual charging port mode, execute test items of simulated charging, current loss, auxiliary power loss, PE loss, transmission current loss confirmation and SCAN communication loss.

[0151] Specifically, when the vehicle has only one charging port, the current can be forcibly cut off for the charging port to prevent the abnormal situation from worsening, and the corresponding maintenance process can be started. After troubleshooting the fault, the next round of work can be carried out. When the vehicle has two charging ports, the current of the abnormal charging port can be forcibly cut off for the abnormal charging port to prevent the abnormal situation from worsening, and the corresponding maintenance process can be started. After troubleshooting the fault, the next round of work can be carried out. The current of both charging ports can also be cut off at the same time, and the corresponding maintenance process can be started. After troubleshooting the fault, the next round of work can be carried out.

[0152] When charging in single charging port mode, the two charging ports are considered as two separate entities, and the status of the two charging ports do not interfere with each other, which enhances the vehicle's ability to tolerate fault conditions. When charging in dual charging port mode, the two charging ports are considered as a whole. If one of the charging ports is abnormal, it is considered as an abnormality in the charging of the entire vehicle, which enhances the protection of vehicle charging safety.

[0153] Figure 2 It is a structural diagram of a vehicle charging port provided by one or more embodiments of the present invention.

[0154] like Figure 2The vehicle charging ports shown include:

[0155] DC+ and DC- connection terminals for the positive and negative loops that deliver current to the vehicle for battery charging;

[0156] A+ and A- connection terminals of the low-voltage auxiliary power positive and low-voltage auxiliary power negative for delivering current to the vehicle to wake up the control system;

[0157] Establish the S+ and S- connection terminals of the positive and negative SCAN communication lines for communication between the vehicle and the charging device;

[0158] The CC1 connection terminal confirms the current status of the positive and negative loops;

[0159] A CC2 connection terminal for confirming the current delivery status of the low voltage auxiliary power supply positive and the low voltage auxiliary power supply negative;

[0160] PE connection terminal for protective grounding;

[0161] The connection ends are insulated and encapsulated in the charging port;

[0162] The packaging style is based on a synchronous, unidirectional and locked connection of power and signals between the vehicle and the charging equipment.

[0163] Specifically, the packaging style is designed according to the compatibility specified in the national standard GBT 27930-2015.

[0164] Figure 3 It is a structural diagram of a vehicle charging test device provided by one or more embodiments of the present invention.

[0165] like Figure 3 The vehicle charging test device shown includes: a standard acquisition module, a charging system module, a test strategy module, a vehicle judgment module, and a test update module;

[0166] A standard acquisition module is used to obtain vehicle charging standards;

[0167] Charging system module, used to design and manufacture vehicle charging systems according to vehicle charging standards;

[0168] A test strategy module, used to set a vehicle charging test strategy according to the vehicle charging standard;

[0169] A vehicle judgment module is used to test the manufactured vehicle charging system according to the vehicle charging test strategy to determine whether it meets the vehicle charging standards;

[0170] Determining whether the vehicle charging standard is met includes determining whether the tested vehicle has defects in the manufacturing of the vehicle charging system, determining whether the tested vehicle has defects in the design of the vehicle charging system, and / or determining whether the tested vehicle has defects in the charging test strategy of the vehicle charging system;

[0171] The test update module is used to update the design of the vehicle charging system, the manufacture of the vehicle charging system or / and the test strategy for testing vehicle charging according to the negative conclusion of the judgment.

[0172] It is worth noting that although the system only discloses the standard acquisition module, the charging system module, the test strategy module, the vehicle judgment module, and the test update module, it does not mean that the device is limited to the above-mentioned basic functional modules. Rather, what the present invention wants to express is that, based on the above-mentioned basic functional modules, those skilled in the art can arbitrarily add one or more functional modules in combination with the prior art to form an infinite number of embodiments or technical solutions. In other words, the system is open rather than closed. Just because the present embodiment only discloses individual basic functional modules, it cannot be considered that the scope of protection of the claims of the present invention is limited to the above-mentioned basic functional modules.

[0173] Through the above scheme, the following beneficial technical effects are obtained:

[0174] This application monitors the charging working status after the charging port is plugged in, and promptly discovers the fault state of the charging gun after connection, thereby preventing the blind spot of the fault phenomenon caused by the lack of an observation window after the charging gun is connected, and further causing damage to the charging equipment and the vehicle.

[0175] The present application stops the loss in time by disconnecting the transmission of charging current, thereby preventing the occurrence of risks such as current coulomb heating, voltage breakdown, and shell leakage of battery components.

[0176] This application monitors the charging working status in the working modes of single charging gun and dual charging gun to prevent the risk of damage to charging equipment and vehicles while retaining the charging process as much as possible.

[0177] Figure 4 It is a schematic diagram of a vehicle charging test process according to a specific embodiment of the present invention.

[0178] Figure 5 It is a schematic diagram of a vehicle charging port architecture according to a specific embodiment of the present invention.

[0179] In a specific embodiment, Figure 4 The vehicle charging test process shown includes:

[0180] 1. Park the vehicle next to the testing equipment, turn off the engine, and adjust the key door to the OFF position.

[0181] 2. Connect the two DC charging guns of the charging test equipment to the two charging ports of the vehicle. Figure 5 The vehicle charging port architecture is shown.

[0182] 3. Start the test process of the equipment. At this time, the equipment and the vehicle are first Figure 4 The first simulated charging test shown is based on the overall charging process in Section 8 of GBT 27930-2015 Communication protocol between non-onboard conductive charger and battery management system of electric vehicles. The vehicle completes the charging connection confirmation through CC1 connection terminal and CC2 connection terminal. CC1 connection terminal belongs to the vehicle charging confirmation circuit, and CC2 connection terminal belongs to the device charging confirmation circuit. After both circuits complete the circuit closed loop, it means that the vehicle charging port and the device have effectively completed the physical connection. After the physical connection is completed, the device supplies low-voltage power to the vehicle through the positive low-voltage auxiliary power supply (A+ connection terminal) and the negative low-voltage auxiliary power supply (A- connection terminal), wakes up the vehicle's battery controller, and facilitates the next step of communication between the device and the vehicle. In the next step, the vehicle and the device exchange charging information through SCAN (S+ connection terminal and S- connection terminal), complete the charging handshake and charging parameter configuration, and finally the device transmits voltage and current to the vehicle through the positive loop (DC+ connection terminal) and the negative loop (DC- connection terminal) to enter the charging stage. The vehicle and the equipment communicate in accordance with the national standard GBT 27930-2015 Communication protocol between non-onboard conductive chargers and battery management systems for electric vehicles. The two sides exchange the required information to build a complete charging process. Figure 5 All modules shown are operating normally.

[0183] 4. According to the charging process, when the device sends current to the vehicle, it proves that the vehicle's charging process is completed and the vehicle's simulated charging function is normal, and then start Figure 4 The second detection process shown is the current loss test. At this time, the device is still transmitting current to the vehicle through the positive circuit (DC+ connection end) and the negative circuit (DC- connection end). After the current loss test is turned on, according to the charging phase in Section 8 of the overall charging process of GBT27930-2015 Communication Protocol between Non-onboard Conductive Chargers and Battery Management Systems for Electric Vehicles, the current transmission is actively cut off to confirm whether the vehicle can exit the charging process in the absence of current input. The device forcibly stops current transmission and checks the vehicle status. If the vehicle cuts off the charging process, the current loss test is considered to be completed. If the vehicle does not cut off the process, the device forcibly cuts off the process and the vehicle needs to be returned for repair.

[0184] 5. After the current loss test is completed, turn on Figure 4The third detection process shown is the auxiliary power loss test. According to Section 8 of the low-voltage auxiliary power-on link in the communication protocol between the non-on-board conductive charger and the battery management system of GBT 27930-2015 electric vehicles, the device forcibly disconnects the low-voltage auxiliary power supply to confirm whether the vehicle can exit the charging state in the absence of the low-voltage auxiliary power supply. At this time, the device and the vehicle need to rebuild the charging process. After the construction is completed, the device forcibly stops the low-voltage auxiliary power positive (A+ connection terminal) and the low-voltage auxiliary power negative (A- connection terminal) and checks the vehicle status. If the vehicle cuts off the charging process, the auxiliary power loss test is considered to be completed. If the vehicle does not cut off the process, the device forcibly cuts off the process and the vehicle needs to be returned for repair.

[0185] 6. After the auxiliary power loss test is completed, turn on Figure 4 The fourth test process shown, namely the PE loss test, detects whether the vehicle can be forced to exit the charging process in the absence of PE (protective grounding) according to Section 8 Physical Connection in GBT 27930-2015 Communication Protocol between Off-board Conductive Charger and Battery Management System of Electric Vehicles. At this time, the device and the vehicle still need to rebuild the charging process. After the construction is completed, the device forces PE (protective grounding) to stop and check the vehicle status. If the vehicle cuts off the charging process, the PE loss test is considered completed. If the vehicle does not cut off the process, the device side forces the process to be cut off, and the vehicle needs to be returned for repair.

[0186] 7. After the PE loss test is completed, open Figure 4 The fifth detection process shown is the CC2 loss test. According to the physical connection process in Section 8 of GBT27930-2015 Communication protocol between non-onboard conductive charger and battery management system of electric vehicles, the device forcibly disconnects the CC2 connection circuit to confirm whether the vehicle can exit the charging process without physical connection. At this time, the device and the vehicle still need to rebuild the charging process. After the construction is completed, the device forcibly stops the charging connection to confirm CC2 and check the vehicle status. If the vehicle cuts off the charging process, the CC2 loss test is considered to be completed. If the vehicle does not cut off the process, the device forcibly cuts off the process and the vehicle needs to be returned for repair.

[0187] 8. After the CC2 loss test is completed, open Figure 4The sixth detection process shown is the SCAN loss test. According to Section 8 Charging Handshake and Parameter Configuration in GBT 27930-2015 Communication Protocol between Off-board Conductive Charger and Battery Management System of Electric Vehicles, the device forcibly disconnects the communication between the device and the vehicle to confirm whether the vehicle can exit the charging process without communication. At this time, the device and the vehicle still need to rebuild the charging process. After the construction is completed, the device forcibly stops the charging communication SCAN and checks the vehicle status. If the vehicle cuts off the charging process, the SCAN loss test is considered to be completed. If the vehicle does not cut off the process, the device forcibly cuts off the process and the vehicle needs to be returned for repair.

[0188] 9. The device summarizes the above test results as the overall charging test results.

[0189] Figure 6 It is a structural block diagram of an electronic device of a vehicle charging test method provided by one or more embodiments of the present invention.

[0190] like Figure 6 As shown, the present application provides an electronic device, including: a processor, a communication interface, a memory and a communication bus, wherein the processor, the communication interface and the memory communicate with each other through the communication bus;

[0191] A computer program is stored in the memory. When the computer program is executed by the processor, the processor executes the steps of a vehicle charging test method.

[0192] The present application also provides a computer-readable storage medium storing a computer program executable by an electronic device. When the computer program runs on the electronic device, the electronic device executes the steps of a vehicle charging test method.

[0193] The present application also provides a platform, including:

[0194] Electronic device for implementing the steps of the vehicle charging test method;

[0195] A processor, the processor runs a program, and when the program runs, the steps of the vehicle charging test method are executed from the data output by the electronic device;

[0196] The storage medium is used to store a program, and when the program is run, the program executes the steps of the vehicle charging test method for the data output from the electronic device.

[0197] The communication bus mentioned in the above electronic device can be a Peripheral Component Interconnect (PCI) bus or an Extended Industry Standard Architecture (EISA) bus, etc. The communication bus can be divided into an address bus, a data bus, a control bus, etc. For ease of representation, only one thick line is used in the figure, but it does not mean that there is only one bus or one type of bus.

[0198] The electronic device includes a hardware layer, an operating system layer running on the hardware layer, and an application layer running on the operating system. The hardware layer includes hardware such as a central processing unit (CPU), a memory management unit (MMU), and a memory. The operating system can be any one or more computer operating systems that implement electronic device control through a process, such as a Linux operating system, a Unix operating system, an Android operating system, an iOS operating system, or a Windows operating system. In addition, in an embodiment of the present invention, the electronic device can be a handheld device such as a smart phone or a tablet computer, or can be an electronic device such as a desktop computer or a portable computer, which is not particularly limited in the embodiment of the present invention.

[0199] The execution subject of the electronic device control in the embodiment of the present invention may be an electronic device, or a functional module in the electronic device that can call and execute a program. The electronic device may obtain the firmware corresponding to the storage medium. The firmware corresponding to the storage medium is provided by the supplier. The firmware corresponding to different storage media may be the same or different, which is not limited here. After the electronic device obtains the firmware corresponding to the storage medium, the firmware corresponding to the storage medium may be written into the storage medium, specifically, the firmware corresponding to the storage medium may be burned into the storage medium. The process of burning the firmware into the storage medium may be implemented using existing technology, which will not be described in detail in the embodiment of the present invention.

[0200] The electronic device can also obtain a reset command corresponding to the storage medium. The reset command corresponding to the storage medium is provided by the supplier. The reset commands corresponding to different storage media may be the same or different, and are not limited here.

[0201] At this time, the storage medium of the electronic device is a storage medium in which the corresponding firmware is written, and the electronic device can respond to the reset command corresponding to the storage medium in the storage medium in which the corresponding firmware is written, so that the electronic device resets the storage medium in which the corresponding firmware is written according to the reset command corresponding to the storage medium. The process of resetting the storage medium according to the reset command can be implemented by the existing technology and will not be described in detail in the embodiments of the present invention.

[0202] For the convenience of description, the above devices are described in terms of functions and are divided into various units and modules. Of course, when implementing the present application, the functions of each unit and module can be implemented in the same or multiple software and / or hardware.

[0203] Those skilled in the art will appreciate that, unless otherwise defined, all terms (including technical and scientific terms) used herein have the same meaning as those generally understood by those skilled in the art in the art to which the present invention belongs. It should also be understood that terms such as those defined in general dictionaries should be understood to have meanings consistent with the meanings in the context of the prior art, and will not be interpreted with idealized or overly formal meanings unless specifically defined.

[0204] For the method embodiments, for the sake of simplicity, they are all described as a series of action combinations, but those skilled in the art should know that the embodiments of the present invention are not limited by the order of the actions described, because according to the embodiments of the present invention, some steps can be performed in other orders or simultaneously. Secondly, those skilled in the art should also know that the embodiments described in the specification are all preferred embodiments, and the actions involved are not necessarily required by the embodiments of the present invention.

[0205] It can be known from the description of the above implementation modes that those skilled in the art can clearly understand that the present application can be implemented by means of software plus a necessary general hardware platform. Based on such an understanding, the technical solution of the present application can be essentially or partly contributed to the prior art in the form of a software product, which can be stored in a storage medium such as ROM / RAM, a magnetic disk, an optical disk, etc., and includes several instructions for enabling a computer device (which can be a personal computer, a server or a network device, etc.) to execute the methods described in the various implementation modes of the present application or certain parts of the implementation modes.

[0206] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or replace some or all of the technical features therein with equivalents. However, these modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present invention.

Claims

1. A vehicle charging test method, characterized in that: The vehicle charging test method comprises: Obtain vehicle charging standards; Design vehicle charging systems and manufacture vehicle charging systems according to vehicle charging standards; Set vehicle charging test strategy according to vehicle charging standards; According to the vehicle charging test strategy, test the manufactured vehicle charging system to determine whether it meets the vehicle charging standards; The determination of whether the vehicle charging standard is met includes determining whether the tested vehicle has defects in the manufacturing of the vehicle charging system, determining whether the tested vehicle has defects in the design of the vehicle charging system, and / or determining whether the tested vehicle has defects in the charging test strategy of the vehicle charging system; Based on the negative conclusion of the judgment, update the design of the vehicle charging system, the manufacture of the vehicle charging system or / and the test strategy for testing vehicle charging.

2. The vehicle charging test method according to claim 1, characterized in that: The designed vehicle charging system includes: Design a positive loop and a negative loop to establish a circuit for delivering current to the vehicle to charge the battery; Design a low-voltage auxiliary power positive and a low-voltage auxiliary power negative to establish a loop for transmitting current to the vehicle to wake up the control system; Design the SCAN communication line positive and SCAN communication line negative to establish communication between the vehicle and the charging device; Design a charging confirmation circuit to confirm the current transmission status of the positive and negative loops, and to confirm the current transmission status of the positive and negative low-voltage auxiliary power supplies; Design PE circuit for protective grounding.

3. The vehicle charging test method according to claim 2, characterized in that: The manufacturing vehicle charging system comprises: According to the circuit that transmits current to the vehicle for battery charging, the circuit that transmits current to the vehicle for waking up the control system, the communication between the vehicle and the charging device is established, the current transmission status of the positive and negative circuits is confirmed, the current transmission status of the positive and negative low-voltage auxiliary power supply is confirmed, and the protective grounding is ensured to ensure the standardized packaging of the charging port; The standardized packaging of the charging port includes standardized packaging of wire diameter, insulation, heat dissipation, anti-interference, full contact of contacts, charging port connection direction, and terminal distribution position; Based on the standardized packaging of the charging port, the corresponding vehicle charging system is designed and manufactured to connect the battery, control system, communication module and protective ground circuit.

4. The vehicle charging test method according to claim 2, characterized in that: The vehicle charging test includes: Test items for simulating charging, current loss, auxiliary power loss, PE loss, loss of transmission current status, and SCAN communication loss; According to the failure of any test in the test items, the corresponding maintenance process is initiated; The test ends upon the success of all tests in the test project.

5. The vehicle charging test method according to claim 4, characterized in that: The vehicle charging test strategy includes: According to the test items of simulated charging, the current is transmitted to the vehicle through the positive and negative loops; According to the current loss test items, simulate the current loss scenario during the process of transmitting current to the vehicle through the positive and negative loops; According to the current loss, determine whether the vehicle cuts off the charging process; If,cut off, the test passes; If it is not cut off, the current is forcibly cut off and the corresponding maintenance process is started.

6. A vehicle charging port, characterized in that: The vehicle charging port comprises: DC+ and DC- connection terminals for the positive and negative loops that deliver current to the vehicle for battery charging; A+ and A- connection terminals of the low-voltage auxiliary power positive and low-voltage auxiliary power negative for delivering current to the vehicle to wake up the control system; Establish the S+ and S- connection terminals of the positive and negative SCAN communication lines for communication between the vehicle and the charging device; The CC1 connection terminal confirms the current status of the positive and negative loops; A CC2 connection terminal for confirming the current delivery status of the low voltage auxiliary power supply positive and the low voltage auxiliary power supply negative; PE connection terminal for protective grounding; The connection ends are insulated and encapsulated in the charging port; The packaging style is based on a synchronous, unidirectional and locked connection of power and signals between the vehicle and the charging equipment.

7. A vehicle charging test device, characterized in that: The vehicle charging test device comprises: A standard acquisition module is used to obtain vehicle charging standards; Charging system module, used to design and manufacture vehicle charging systems according to vehicle charging standards; A test strategy module, used to set a vehicle charging test strategy according to the vehicle charging standard; A vehicle judgment module is used to test the manufactured vehicle charging system according to the vehicle charging test strategy to determine whether it meets the vehicle charging standards; The determination of whether the vehicle charging standard is met includes determining whether the tested vehicle has defects in the manufacturing of the vehicle charging system, determining whether the tested vehicle has defects in the design of the vehicle charging system, and / or determining whether the tested vehicle has defects in the charging test strategy of the vehicle charging system; The test update module is used to update the design of the vehicle charging system, the manufacture of the vehicle charging system or / and the test strategy for testing vehicle charging according to the negative conclusion of the judgment.

8. An electronic device, characterized in that: include: A processor, a communication interface, a memory and a communication bus, wherein the processor, the communication interface and the memory communicate with each other via the communication bus; A computer program is stored in the memory, and when the computer program is executed by the processor, the processor executes the steps of the vehicle charging test method according to any one of claims 1 to 5.

9. A computer-readable storage medium, characterized in that: include: It stores a computer program that can be executed by an electronic device. When the computer program runs on the electronic device, the electronic device executes the steps of the vehicle charging test method according to any one of claims 1 to 5.

10. A platform, characterized in that: include: An electronic device, used to implement the steps of the vehicle charging test method according to any one of claims 1 to 5; A processor, wherein the processor runs a program, and when the program runs, data output from the electronic device executes the steps of the vehicle charging test method according to any one of claims 1 to 5; A storage medium for storing a program, wherein when the program is run, the program executes the steps of the vehicle charging test method according to any one of claims 1 to 5 for data output from an electronic device.

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