Vehicle charging method, vehicle charging device, and vehicle

Abstract

The present disclosure relates to a vehicle charging method, a vehicle charging device and a vehicle. The vehicle charging method comprises: obtaining a current position coordinate of the vehicle; determining a target charging pile from each charging pile in an electronic map, wherein the target charging pile is located at a position matching the current position coordinate; determining a charging voltage value of the vehicle according to marking information of the target charging pile in the electronic map; and sending the charging voltage value to the target charging pile, so that the vehicle is charged at the charging voltage value by the target charging pile. Thus, the method determines the charging voltage of the vehicle according to the marking information of the target charging pile matching the current position coordinate, so that the occurrence of charging failure can be avoided in advance, and the user experience is optimized.

Description

TECHNICAL FIELD

[0001] The present disclosure relates to the technical field of vehicles, and in particular to a vehicle charging method, a vehicle charging device and a vehicle. BACKGROUND

[0002] In a few years ago, the voltage platform of most vehicles is below 500V. In recent years, in order to improve the performance of the vehicle (including charging rate, etc.), the vehicle voltage platform is increased from 500V to about 800V. At the same time, as the energy supply station of the vehicle, the charging pile also needs to be improved in the voltage platform, for example, on the basis of the original 500V voltage platform, the charging pile of 750V and 1000V voltage platform is added. With the increase of the voltage platform of the vehicle and the charging pile, some problems have also arisen, especially the charging failure problem caused by the mismatch of the voltage platform of the vehicle and the charging pile. SUMMARY

[0003] In order to overcome the problems in the related art, the present disclosure provides a vehicle charging method, a vehicle charging device and a vehicle.

[0004] According to a first aspect of an embodiment of the present disclosure, a vehicle charging method is provided, the method comprising the following steps:

[0005] obtaining a current position coordinate of a vehicle;

[0006] determining a target charging pile from each charging pile of an electronic map; wherein the position of the target charging pile matches the current position coordinate;

[0007] determining a charging voltage value of the vehicle according to the marking information of the target charging pile in the electronic map;

[0008] sending the charging voltage value to the target charging pile, so as to charge the vehicle with the charging voltage value by the target charging pile.

[0009] In an embodiment of the present disclosure, the determining of the charging voltage value of the vehicle according to the marking information of the target charging pile in the electronic map comprises:

[0010] in the case that the marking information indicates that the target charging pile has a voltage compatibility problem, obtaining a voltage platform parameter of the vehicle;

[0011] if the voltage platform parameter of the vehicle is a first preset voltage value, determining the charging voltage value of the vehicle as a second preset voltage value; wherein the first preset voltage value is greater than the second preset voltage value.

[0012] In one embodiment of the present disclosure, the determining the charging voltage value of the vehicle according to the marking information of the target charging pile comprises:

[0013] In a case where the marking information indicates that the target charging pile does not have a voltage compatibility problem, obtaining a voltage platform parameter of the vehicle;

[0014] If the voltage platform parameter of the vehicle is a first preset voltage value, determining the charging voltage value of the vehicle as the first preset voltage value.

[0015] In one embodiment of the present disclosure, the determining the charging voltage value of the vehicle according to the marking information of the target charging pile in the electronic map further comprises:

[0016] If the voltage platform parameter of the vehicle is a second preset voltage value, determining the charging voltage value of the vehicle as the second preset voltage value.

[0017] In one embodiment of the present disclosure, the method further comprises:

[0018] determining whether the vehicle is successfully charged at the first preset voltage value;

[0019] If the vehicle fails to be charged at the first preset voltage value, controlling the vehicle and the target charging pile to be reconnected;

[0020] In a case where the vehicle and the target charging pile are successfully reconnected, determining the charging voltage value of the vehicle as the second preset voltage value;

[0021] sending the second preset voltage value to the target charging pile, so that the vehicle is charged at the second preset voltage value by the target charging pile.

[0022] In one embodiment of the present disclosure, the method further comprises:

[0023] If the vehicle is successfully charged at the first preset voltage value, continuing to charge the vehicle at the first preset voltage value by the target charging pile.

[0024] In one embodiment of the present disclosure, the method further comprises:

[0025] determining the target charging pile as a charging pile having a voltage platform compatibility problem;

[0026] uploading a location of the target charging pile to the server, so that the server updates the marking information of the target charging pile in the electronic map, and the updated marking information is used to indicate that the target charging pile is a charging pile having a voltage platform compatibility problem.

[0027] In one embodiment of the present disclosure, a switch unit is connected in series between the positive charging port of the vehicle and the charging resistor;

[0028] The control of the reconnection between the vehicle and the target charging pile includes:

[0029] The switch unit is controlled to be closed after being opened for a set time length, so as to reconnect the vehicle and the target charging pile.

[0030] In one embodiment of the present disclosure, the switch unit includes:

[0031] At least one normally closed switch in series, or at least one transistor in series.

[0032] In one embodiment of the present disclosure, the first preset voltage value is greater than or equal to 750V, and the second preset voltage value is less than or equal to 500V.

[0033] According to a second aspect of the embodiments of the present disclosure, a vehicle charging device is provided, and the device includes:

[0034] An acquisition module is configured to acquire a current position coordinate of a vehicle;

[0035] A first determination module is configured to determine a target charging pile from charging piles in an electronic map, wherein the target charging pile is located at a position matching the current position coordinate;

[0036] A second determination module is configured to determine a charging voltage value of the vehicle according to marking information of the target charging pile in the electronic map.

[0037] A charging module is configured to send the charging voltage value to the target charging pile, so that the vehicle is charged at the charging voltage value by the target charging pile.

[0038] In one embodiment of the present disclosure, when the second determination module is configured to determine the charging voltage value of the vehicle according to the marking information of the target charging pile in the electronic map, the second determination module includes:

[0039] In a case where the marking information indicates that the target charging pile has a voltage compatibility problem, the voltage platform parameter of the vehicle is acquired.

[0040] If the voltage platform parameter of the vehicle is a first preset voltage value, the charging voltage value of the vehicle is determined as a second preset voltage value; wherein the first preset voltage value is greater than the second preset voltage value.

[0041] In an embodiment of the present disclosure, the second determining module is configured to determine the charging voltage value of the vehicle according to the marking information of the target charging pile, and the determining comprises:

[0042] In a case where the marking information indicates that the target charging pile has no voltage compatibility problem, obtaining a voltage platform parameter of the vehicle;

[0043] If the voltage platform parameter of the vehicle is a first preset voltage value, determining the charging voltage value of the vehicle as the first preset voltage value.

[0044] In an embodiment of the present disclosure, the second determining module is configured to determine the charging voltage value of the vehicle according to the marking information of the target charging pile in the electronic map, and the determining further comprises:

[0045] If the voltage platform parameter of the vehicle is a second preset voltage value, determining the charging voltage value of the vehicle as the second preset voltage value.

[0046] In an embodiment of the present disclosure, the device further comprises:

[0047] A judging module configured to judge whether the vehicle is successfully charged at the first preset voltage value;

[0048] A control module configured to control reconnection between the vehicle and the target charging pile in a case where the vehicle fails to be charged at the first preset voltage value;

[0049] The second determining module is further configured to determine the charging voltage value of the vehicle as the second preset voltage value in a case where the reconnection between the vehicle and the target charging pile is successful;

[0050] The charging module is further configured to send the second preset voltage value to the target charging pile, so as to charge the vehicle at the second preset voltage value through the target charging pile.

[0051] In an embodiment of the present disclosure, the charging module is further configured to:

[0052] In a case where the vehicle is successfully charged at the first preset voltage value, continue to charge the vehicle at the first preset voltage value through the target charging pile.

[0053] In an embodiment of the present disclosure, the device further comprises:

[0054] A third determining module configured to determine the target charging pile as a charging pile having a voltage platform compatibility problem;

[0055] An updating module is configured to upload the location of the target charging pile to the server, so that the server updates the marking information of the target charging pile in the electronic map, and the updated marking information is used to indicate that the target charging pile is a charging pile with a voltage platform compatibility problem.

[0056] In one embodiment of the present disclosure, a switch unit is connected in series between the positive charging port of the vehicle and the charging resistor;

[0057] The control module is configured to control the reconnection between the vehicle and the target charging pile, including:

[0058] The control module is configured to control the reconnection between the vehicle and the target charging pile, including:

[0059] In one embodiment of the present disclosure, the switch unit includes:

[0060] At least one normally closed switch in series, or at least one transistor in series.

[0061] In one embodiment of the present disclosure, the first preset voltage value is greater than or equal to 750V, and the second preset voltage value is less than or equal to 500V.

[0062] According to a third aspect of the embodiments of the present disclosure, a vehicle is provided, including the vehicle charging device of the second aspect.

[0063] According to a fourth aspect of the embodiments of the present disclosure, a computer readable storage medium is provided, which stores computer program instructions, and the program instructions are executed by a processor to implement the steps of the vehicle charging method of the first aspect.

[0064] According to a fifth aspect of the embodiments of the present disclosure, a computer program product is provided, including a computer program, and the computer program is executed by a processor to implement the steps of the vehicle charging method of the first aspect.

[0065] The technical solutions provided by the embodiments of the present disclosure can include the following beneficial effects:

[0066] In the present disclosure, the current position coordinates of the vehicle are first obtained, and then the target charging pile is determined from each charging pile in the electronic map, the location of the target charging pile matches the current position coordinates, and then the charging voltage value of the vehicle is determined according to the marking information of the target charging pile in the electronic map, and the charging voltage value is sent to the target charging pile, so that the target charging pile charges the vehicle at the charging voltage value. Therefore, the marking information of the target charging pile matched with the current position coordinates is obtained, and the charging voltage of the vehicle is determined, so that the occurrence of charging failure can be avoided in advance, and the user experience is optimized.

[0067] It should be understood that the general description and detailed description, which follow, are exemplary and explanatory only and are not restrictive of the present disclosure. BRIEF DESCRIPTION OF DRAWINGS

[0068] The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the present disclosure and serve to explain the principles of the present disclosure, in which, like reference numerals designate corresponding parts throughout the several views.

[0069] Figure 1 is a schematic diagram of a vehicle charging process in the related art;

[0070] Figure 2 is a schematic diagram of parallel modules and series mode in the related art;

[0071] Figure 3 is a schematic diagram of a GB / T 27930 charging process in the related art;

[0072] Figure 4 is a flowchart of a vehicle charging method according to an embodiment of the present disclosure;

[0073] Figure 5 is a schematic diagram of an early avoidance scheme implementation according to an embodiment of the present disclosure;

[0074] Figure 6 is a schematic diagram of an on-site repair scheme implementation according to an embodiment of the present disclosure;

[0075] Figure 7 is a schematic diagram of a user overall experience according to an embodiment of the present disclosure;

[0076] Figure 8 is a circuit diagram of a connection between a charging pile and a vehicle in the related art;

[0077] Figure 9 is a circuit diagram of a connection between an improved charging pile and a vehicle according to an embodiment of the present disclosure;

[0078] Figure 10 is a block schematic diagram of a vehicle charging device according to an embodiment of the present disclosure;

[0079] Figure 11 is a functional block diagram of a vehicle according to an exemplary embodiment. DETAILED DESCRIPTION

[0080] Some embodiments of the present disclosure will be described in detail herein with reference to the drawings, in which some embodiments of the present disclosure are shown by way of illustration. The description of the methods, devices, and / or systems described herein can refer to the accompanying drawings in which the same or similar reference notations can be used to describe the same or like elements. Various changes, modifications, and equivalents of the methods, devices, and / or systems described herein can become apparent to those skilled in the art once the present disclosure is understood. For instance, the order of the operations described herein is merely an example and is not limited to those set forth herein, but can be changed as can be appreciated except that some operations can only be performed in a particular order unless otherwise specified in the present disclosure. Additionally, descriptions of features known in the art can be omitted for the sake of clarity and brevity.

[0081] The implementations described in some embodiments of the present disclosure are not meant to represent all implementations consistent with the present disclosure. Rather, they are examples of apparatuses and methods consistent with some aspects of the present disclosure as detailed in the appended claims.

[0082] A vehicle charging method, a vehicle charging device, and a vehicle are introduced below with reference to the accompanying drawings.

[0083] Before introducing the vehicle charging method of the embodiments of the present disclosure, how a vehicle is charged in the related art is introduced.

[0084] At present, the charging process of most charging piles (the charging pile described in the present disclosure is a public direct current charging pile) on the market is relatively fixed. The specific charging process is as shown in Figure 1 and includes the following steps:

[0085] The user connects (i.e., plugs in) the charging gun on the charging pile with the vehicle and scans a code to pay for the charging amount;

[0086] The charging pile creates a charging order;

[0087] The charging pile and the vehicle start to interact with messages and enter direct current charging;

[0088] If the charging fails, it is determined whether the charging pile and the vehicle both support message reconnection. If yes, the charging pile and the vehicle can reattempt message interaction. Otherwise, the charging is ended;

[0089] The charging is ended, and the charging pile settles the charging order;

[0090] In the case that one of the charging pile and the vehicle does not support message reconnection, the charging is ended. At this time, if the user wants to try charging again, the user needs to disconnect (i.e., unplug) the connection between the charging gun on the charging pile and the vehicle or replace the charging pile and repeat the above steps.

[0091] Because in the above charging process, if the charging fails, and the charging pile and the vehicle want to re-try the message interaction, the vehicle and the charging pile need to support the message re-connection function at the same time, so that the charging pile and the vehicle can re-try the message interaction. Based on this, in the process of communication and investigation with most charging pile enterprises, it is understood that most charging piles do not turn on the message re-connection function, so after the charging failure between the charging pile and the vehicle (where the main reason for the charging failure is the voltage platform compatibility problem between the charging pile and the vehicle), the user needs to re-plug the gun or replace the charging pile to charge again. However, due to the large size and weight of the charging gun, the cumbersome process of re-plugging and scanning the code for payment will inevitably cause user complaints.

[0092] Some car companies have adopted about three types of solutions, as follows:

[0093] Solution one, limit the maximum voltage platform of the vehicle in the early design. The starting point of solution one is as follows: from the market and the failed cases that have appeared in the test, it is found that the voltage platform compatibility problem is caused by the maximum voltage of the vehicle. Based on this, the maximum voltage interval of the vehicle with few problem times is selected, so that the maximum voltage of the vehicle battery is limited to 750V in the early design, thereby ensuring the high compatibility of the vehicle. Although solution one can improve the compatibility of the vehicle by limiting the maximum voltage of the battery, it also limits the performance of the vehicle. After all, when the current is constant, the greater the voltage, the better the charging performance. In addition, the limitation of the maximum voltage of the vehicle battery will have some impact on the selection of other high-voltage devices of the vehicle.

[0094] Solution two, the electronic map prompts the charging pile that is not suitable for the vehicle. The starting point of solution two is as follows: based on the big data of research and development test and market user feedback, record the sites of charging piles with voltage platform compatibility problems, and mark the corresponding in the electronic map. The prompt information can be marked similar to "frequent gun jump" and "partially broken pile", so that the user can know the state of the charging pile of the site in advance when searching for a charging pile, and reduce the number of charging in such charging piles. Although solution two can help users to select charging piles without problems through the marking of the electronic map, it also limits the selection of charging piles by users to some extent, and reduces the user experience.

[0095] Scheme three, the function of opening the message reconnection of the vehicle and the charging pile. The starting point of making scheme three is as follows: detecting message errors or timeouts in each stage of the charging process, actively sending message reconnection, so that the vehicle tries to interact with the charging pile again, and tries to charge again in the same charging order, so as to avoid the user's operation of re-plugging the gun and scanning the code to pay. Scheme three is very limited by opening the message reconnection function of the vehicle and the charging pile, because the situation of vehicle charging failure due to charging pile message failure is less, and the main reason for vehicle charging failure is the problem of voltage platform compatibility between the vehicle and the charging pile. Through scheme three, the occasional message failure of the charging pile can be solved, but the voltage platform compatibility problem between the vehicle and the charging pile cannot be solved.

[0096] In order to solve the above problems, based on test data, market feedback and investigation, the compatibility problem between the vehicle of high voltage platform and the charging pile is analyzed and sorted out, and the following two problems are summarized.

[0097] Problem 1: A part of the charging piles of high voltage platform is composed of low voltage modules, which are switched according to the demand of the vehicle during charging. For example, as shown in Figure 2 , a 1000V charging pile is composed of two 500V modules, and the proportion of low voltage platform (less than or equal to 500V) vehicles on the market is large, so the charging pile will prefer to adapt to low voltage platform vehicles, and the initial state is set to low voltage mode, that is, two 500V modules are connected in parallel, and output 500V externally. When detecting that the charging vehicle is a high voltage platform (greater than 500V, 750V or 1000V), the mode is switched, and the two 500V modules are switched from parallel connection to series connection. In this switching process, due to the software problems of the charging pile (such as logic error, switching timing error, etc.), there are situations of switching failure, so that the charging pile reports an error and ends the charging. This problem appears before and after the charging machine identification CRM message and charging machine output ready state CRO message interaction stage in the charging process required by GB / T 27930 as shown in Figure 3 , the pre-charging voltage is extracted from the vehicle handshake BHM message and the power battery charging parameter BCP message respectively.

[0098] Problem 2: Some charging piles are too strict in screening vehicle message parameters. Charging piles are currently divided into three categories: 500V, 750V and 1000V; among them, the 500V charging pile is called the low-voltage platform charging pile, and the 750V and 1000V charging piles are called the high-voltage platform charging pile. Some 500V and 750V charging piles will actively suspend charging when the vehicle maximum charging voltage Uvehmax in the message parameter exceeds the maximum charging pile maximum voltage Uchrmax. However, GB / T 27930 requires that the vehicle request charging voltage Uvehreq shall not be higher than the maximum charging pile voltage Uchrmax, and there is no requirement to compare the vehicle maximum charging voltage Uvehmax and the maximum charging pile voltage Uchrmax. This problem occurs before and after the BHM message and BCP message interaction stage in the charging process required by GB / T 27930.

[0099] The above problems 1 and 2 will cause the charging pile to report an error and end charging or reconnect the message, and the root cause of the above problems 1 and 2 is that the message parameters sent by the vehicle exceed the voltage platform of the charging pile, which ultimately leads to the failure of the charging pile. Therefore, in order to solve the voltage compatibility problem of the high-voltage platform vehicle and the charging pile, a new vehicle charging method is proposed.

[0100] Figure 4 is a flowchart of a vehicle charging method according to an embodiment of the present disclosure.

[0101] It should be noted that the vehicle charging method of the embodiment of the present disclosure can be applied to a vehicle; wherein the vehicle can be a pure electric vehicle or a hybrid vehicle.

[0102] As shown in Figure 4 , the vehicle charging method of the embodiment of the present disclosure comprises the following steps:

[0103] S401, obtaining the current position coordinates of the vehicle.

[0104] Among them, the current position coordinates of the vehicle can be collected by the positioning system arranged on the vehicle.

[0105] For example, after the vehicle issues a low power prompt or the user sees that the power is lower than the required power, the user opens an electronic map and inputs “charging pile” in the search bar of the electronic map. The upper edge of the electronic map can display multiple sites provided with charging piles.

[0106] S402, determining a target charging pile from each charging pile of the electronic map; wherein the position of the target charging pile matches the current position coordinates.

[0107] In this step, after the vehicle obtains its current location coordinates through the positioning system, it matches the charging pile location closest to the vehicle's current location coordinates from the charging piles in the electronic map, and uses the charging pile at that location as the target charging pile.

[0108] S403 determines the vehicle's charging voltage value based on the target charging station's marker information on the electronic map.

[0109] Before executing step S403, it is necessary to mark the charging piles with voltage platform compatibility issues (hereinafter referred to as problem piles) in the electronic map. For example, the above-mentioned problem 1 occurs in the CRM and CRO message stages of the GB / T 27930 charging process, and problem 2 occurs in the BHM and BCP message stages of the GB / T 27930 charging process. If the vehicle fails to charge during these four stages, the charging piles that fail to charge during these stages will be marked as problem piles with voltage compatibility issues.

[0110] The feasible process of marking problematic charging stations includes the following two stages: The first stage is a large-scale preliminary test of charging stations during the early R&D phase, which involves identification from an engineering perspective. Due to the wide coverage of charging stations on the market and incomplete statistics, the identification scope at this stage is very limited, and can only screen a portion of representative charging stations. The second stage involves setting up identification strategies on vehicles. After the vehicles are launched and sold, users use the vehicles to charge at various charging stations, and the vehicles identify and record problematic charging stations. The identification scope at this stage is more comprehensive and can cover all charging stations used by users.

[0111] In step S403, when the marking information indicates that the target charging station has a voltage compatibility issue (i.e., when using a problematic charging station marked with a voltage compatibility issue on the electronic map to charge the vehicle), the vehicle's voltage platform parameters are first obtained. If the vehicle's voltage platform parameters are a first preset voltage value, the vehicle's charging voltage value is determined to be a second preset voltage value. Conversely, if the vehicle's voltage platform parameters are the second preset voltage value, the vehicle's charging voltage value is determined to be the second preset voltage value. The first preset voltage value is greater than the second preset voltage value; for example, the first preset voltage value is 750V or 1000V, and the second preset voltage value is 500V.

[0112] In the case where the label information indicates that the target charging pile does not have a voltage compatibility problem, even if the vehicle is charged using the problem pile in the electronic map which is not marked as having a voltage compatibility problem, the voltage platform parameter of the vehicle is first obtained, if the voltage platform parameter of the vehicle is the first preset voltage value, the charging voltage value of the vehicle is determined as the first preset voltage value, and if the voltage platform parameter of the vehicle is the second preset voltage value, the charging voltage value of the vehicle is determined as the second preset voltage value.

[0113] S404, the charging voltage value is sent to the target charging pile, so that the vehicle is charged by the target charging pile at the charging voltage value.

[0114] In this step, when it is determined that the charging voltage value of the vehicle is the second preset voltage, the second preset voltage value is sent to the target charging pile, so that the vehicle is charged by the target charging pile at the second preset voltage value, and when it is determined that the charging voltage value of the vehicle is the first preset voltage, the first preset voltage value is sent to the target charging pile, so that the vehicle is charged by the target charging pile at the first preset voltage value.

[0115] Therefore, in the case where the target charging pile is a problem pile marked as having a voltage compatibility problem, if the vehicle is charged using the target charging pile, the early avoidance scheme is selected, that is, when the vehicle detects charging on the problem pile, the charging strategy is automatically switched, that is, the vehicle is charged by the problem pile at the second preset voltage value which is less than the first preset voltage value, so that the occurrence of problems 1 and 2 can be avoided in advance, and the user experience can be maximally optimized.

[0116] Among them, the early avoidance scheme takes into account the following points:

[0117] Firstly, since there is no information such as the number, model and position of the charging pile in the message exchanged between the vehicle and the charging pile, it is impossible to distinguish whether the charging pile this time is a problem pile through the information in the interaction message, and for this purpose, the electronic map and positioning system of the vehicle are used to solve this problem. Firstly, the problem piles identified in the early research and development stage are positioned and the position coordinates are recorded, imported into the electronic map of the vehicle, and stored, and the electronic map marks the coordinate position of this charging pile as the coordinate of the problem pile. Before the vehicle inserts the charging gun on the problem pile, the vehicle positioning system compares the vehicle position with the coordinates of the problem pile marked in the electronic map to distinguish whether the charging pile this time is a problem pile, so as to modify the voltage platform parameter in the next step.

[0118] Secondly, when the vehicle encounters a problem pile, the vehicle needs to avoid sending a message parameter of a second voltage platform (high voltage platform). The present disclosure is a vehicle reserved internal software logic. When it is detected that the vehicle is charging on a non-problem pile, the real voltage platform parameter is sent to charge the vehicle through the corresponding level platform parameter; when it is detected that the vehicle is charging on a problem pile, the first voltage platform (low voltage platform, such as less than or equal to 500V) parameter is sent to guide the charging pile to enter the low-voltage mode charging, thereby avoiding the problem pile from failing to perform mode switching and the parameter screening being unqualified, and at the same time, the vehicle should also enter the low-voltage charging mode, that is, the boost charging (the low voltage of the problem pile is boosted to a high voltage suitable for the vehicle battery for charging), and the boost charging is a standard configuration of the high-level vehicle.

[0119] As shown in Figure 5 , the early avoidance scheme can effectively improve the success rate of user charging, and at the same time, force the vehicle to enter the boost charging to supply the vehicle with the boosted voltage.

[0120] Since the number of problem piles avoided in advance is limited, the user may still fail when charging on some unrecorded problem piles, so a field repair scheme is needed to improve it.

[0121] Therefore, in one embodiment of the present disclosure, when it is determined that the target charging pile at the current position coordinate is not a problem pile, the vehicle is charged by the target charging pile at a first preset voltage value, it is further judged whether the vehicle charging at the first preset voltage value is successful, if the vehicle charging at the first preset voltage value fails, the vehicle and the target charging pile are reconnected, and in the case that the vehicle and the target charging pile are successfully reconnected, the charging voltage value of the vehicle is determined as a second preset voltage value, then the second preset voltage value is sent to the target charging pile to charge the vehicle by the target charging pile at the second preset voltage value, and if the vehicle charging at the first preset voltage value is successful, the vehicle is continuously charged by the target charging pile at the first preset voltage value.

[0122] In the case that the vehicle charging at the first preset voltage value fails, the target charging pile is determined as a charging pile with voltage platform compatibility problem, and the position of the target charging pile is uploaded to the server, so that the server updates the marking information of the target charging pile in the electronic map. The updated marking information is used to indicate that the target charging pile is a charging pile with voltage platform compatibility problem. In addition, the server synchronizes the updated electronic map to all vehicles of the same vehicle model as the vehicle (i.e. vehicles with the first preset voltage value of the voltage platform parameter), and the electronic map of these vehicles all adds the problem pile.

[0123] That is, for the second stage identification problem pile, it is necessary to combine the on-site repair and pre-avoidance scheme, on the premise that the vehicle does not know whether the local charging pile is a problem pile before charging, if it is a problem pile, a charging failure will occur on site, and when the charging failure is identified as a problem pile, the vehicle strategy is switched to enable the second charging to be successful. And supplement the charging pile of this charging as a problem pile.

[0124] The on-site repair scheme needs to also set the software strategy for identifying the problem pile on the vehicle on the market, that is, the strategy of regarding the charging pile that has charging failure in the CRM message, CRO message, BHM message and BCP message stage as a problem pile, the implementation mainly includes the following three steps, as shown in Figure 6 As shown, including: the vehicle encounters a problem pile that is not recorded, and the charging fails, the vehicle identifies the failure reason, switches to the low-voltage charging mode, and successfully enters the boost charging after the message reconnects successfully or the user charges next time. The vehicle records the charging pile as a problem pile, and combines the vehicle positioning system to upload the position coordinates of the charging pile to the electronic map, and the electronic map also marks the newly uploaded problem pile; the electronic map synchronizes the newly marked problem pile to all vehicles of the same model (i.e. vehicles with the first preset voltage value of the voltage platform parameter), and all vehicles' electronic maps are synchronized to increase the marking of the problem pile.

[0125] The on-site repair in this embodiment is actually to change the vehicle message parameters in time after discovering the problem pile in the on-site charging failure to ensure the success of reconnection or second charging. On a higher level, the vehicle enterprise and the user are linked to optimize the charging compatibility, and the user also increases the sample size of the problem pile collection when charging at each charging pile. After the vehicle identifies the problem pile, the entire vehicle network is synchronized.

[0126] The overall performance of the user experience is shown in Figure 7 , including: all users charge at the marked problem pile and charge successfully; if a single user charges at an unmarked problem pile, he will experience a charging failure, but the reconnection / second charging will be successful, and after that, other vehicles can directly charge at the charging pile without experiencing failure.

[0127] In order to further optimize the user experience, the present disclosure also proposes an electrical architecture and control strategy to simplify the operation of the user trying to charge twice.

[0128] Because most charging piles need to perform re-plug-in after charging is completed in order to be charged again. Based on this, first analyze the internal circuit of the vehicle connected with the charging gun, as shown in Figure 8As shown, the charging pile has a resistance detection device corresponding to the CC1 pin. When the charging gun is not plugged in, the voltage at the detection point of the charging pile is U1. When the charging gun is plugged in, the voltage at the detection point is U1*(R2 / (R1+R2)).

[0129] Because re-performing the charging gun insertion / removal process increases user complaints, this disclosure improves the vehicle's charging circuitry, such as... Figure 9 As shown, this disclosure connects a switching unit (10) in series between the positive charging port of the vehicle and the charging resistor R2. The switching unit (10) includes at least one normally closed switch or at least one transistor. The transistor can be a bipolar transistor or a field-effect transistor, and no specific limitation is made in this disclosure.

[0130] The following explanation of the switch unit (10) is based on an example including a normally closed switch S1. Specifically, the positive charging port of the vehicle is connected to one end of the normally closed switch S1, and the other end of the normally closed switch S1 is connected to one end of the charging resistor R2. The other end of the charging resistor R2 and the negative charging port of the vehicle are both grounded. In this way, after each charging is completed (whether it is a normal end or a charging end), the vehicle will automatically control the normally closed switch S1 to open for a set time (a brief opening, such as an opening for 3 seconds) and then close it again. This allows the charging pile to detect the unplugging signal, thereby reducing the user's plugging and unplugging operation. The user does not need to plug and unplug the charging gun; they only need to swipe the card again to charge.

[0131] In summary, the vehicle charging method of this disclosure first obtains the vehicle's current location coordinates, then determines the target charging station from among the charging stations on the electronic map, wherein the location of the target charging station matches the current location coordinates. Next, based on the marker information of the target charging station on the electronic map, the vehicle's charging voltage value is determined and sent to the target charging station so that the vehicle can be charged at that voltage value. Therefore, this method enables the vehicle to intelligently identify voltage platform compatibility issues and automatically repair or switch charging strategies upon detection, proactively avoiding charging failures and improving the success rate of the user's first charge, thus optimizing the user experience. While ensuring vehicle-charging station voltage platform compatibility, the vehicle's voltage platform can be designed to its fullest potential, fully leveraging the performance advantages of a high-voltage platform. Through the accumulation of numerous user charging behaviors, the test sample size for charging stations by automakers is gradually increased, reducing the manpower and time costs associated with initial charging station testing for automakers.

[0132] Figure 10 This is a block diagram illustrating a vehicle charging device according to an embodiment of the present disclosure.

[0133] like Figure 10As shown, the vehicle charging device 1000 of the embodiment of the present disclosure comprises an acquisition module 1010, a first determination module 1020, a second determination module 1030 and a charging module 1040.

[0134] The acquisition module 1010 is configured to acquire a current position coordinate of the vehicle.

[0135] The first determination module 1020 is configured to determine a target charging pile from the charging piles in the electronic map, wherein the target charging pile is located at a position matching the current position coordinate.

[0136] The second determination module 1030 is configured to determine a charging voltage value of the vehicle according to the marking information of the target charging pile in the electronic map.

[0137] The charging module 1040 is configured to send the charging voltage value to the target charging pile, so as to charge the vehicle at the charging voltage value by the target charging pile.

[0138] In an embodiment of the present disclosure, when the second determination module 1030 is configured to determine the charging voltage value of the vehicle according to the marking information of the target charging pile in the electronic map, the second determination module 1030 comprises:

[0139] In a case where the marking information indicates that the target charging pile has a voltage compatibility problem, the voltage platform parameter of the vehicle is acquired.

[0140] If the voltage platform parameter of the vehicle is a first preset voltage value, the charging voltage value of the vehicle is determined as a second preset voltage value; wherein the first preset voltage value is greater than the second preset voltage value.

[0141] In an embodiment of the present disclosure, when the second determination module 1030 is configured to determine the charging voltage value of the vehicle according to the marking information of the target charging pile, the second determination module 1030 comprises:

[0142] In a case where the marking information indicates that the target charging pile does not have a voltage compatibility problem, the voltage platform parameter of the vehicle is acquired.

[0143] If the voltage platform parameter of the vehicle is a first preset voltage value, the charging voltage value of the vehicle is determined as the first preset voltage value.

[0144] In an embodiment of the present disclosure, when the second determination module 1030 is configured to determine the charging voltage value of the vehicle according to the marking information of the target charging pile in the electronic map, the second determination module 1030 further comprises:

[0145] If the voltage platform parameter of the vehicle is a second preset voltage value, the charging voltage value of the vehicle is determined as the second preset voltage value.

[0146] In an embodiment of the present disclosure, the device further comprises:

[0147] a judging module configured to judge whether the vehicle is successfully charged at the first preset voltage value;

[0148] a control module configured to control the vehicle to reconnect with the target charging pile in a case where the vehicle fails to be charged at the first preset voltage value;

[0149] a second determining module 1030, further configured to determine the charging voltage value of the vehicle as a second preset voltage value in a case where the vehicle reconnects with the target charging pile successfully;

[0150] a charging module 1040, further configured to send the second preset voltage value to the target charging pile, so as to charge the vehicle at the second preset voltage value through the target charging pile.

[0151] In an embodiment of the present disclosure, the charging module 1040 is further configured to:

[0152] continue to charge the vehicle at the first preset voltage value through the target charging pile in a case where the vehicle is successfully charged at the first preset voltage value.

[0153] In an embodiment of the present disclosure, the apparatus further comprises:

[0154] a third determining module configured to determine the target charging pile as a charging pile with a voltage platform compatibility problem;

[0155] an updating module configured to upload a location of the target charging pile to a server, so that the server updates marker information of the target charging pile in an electronic map, and the updated marker information is used to indicate that the target charging pile is a charging pile with a voltage platform compatibility problem.

[0156] In an embodiment of the present disclosure, a switch unit is connected in series between a positive electrode charging port of the vehicle and a charging resistor;

[0157] The control module is configured to control the vehicle to reconnect with the target charging pile, and the control module comprises:

[0158] controlling the switch unit to be closed after being opened for a set time length, so as to make the vehicle reconnect with the target charging pile.

[0159] In an embodiment of the present disclosure, the switch unit comprises:

[0160] at least one series-connected normally closed switch, or at least one series-connected transistor.

[0161] In an embodiment of the present disclosure, the first preset voltage value is greater than or equal to 750 V, and the second preset voltage value is less than or equal to 500 V.

[0162] With regard to the apparatus in the above-described embodiments, a specific manner in which each module performs an operation has been described in detail in the embodiments related to the method, and thus will not be described in detail here.

[0163] Based on the above-described embodiments, the present disclosure further proposes a vehicle comprising the above-described vehicle charging apparatus.

[0164] As an example, Figure 11 is a functional block diagram of a vehicle 1100 according to an example embodiment. The vehicle 1100 can be a hybrid vehicle, or a non-hybrid vehicle, an electric vehicle, a fuel cell vehicle, or another type of vehicle. The vehicle 1100 can be an autonomous vehicle, a semi-autonomous vehicle, or a non-autonomous vehicle.

[0165] Referring to Figure 11 , the vehicle 1100 can include various subsystems, such as an infotainment system 1110, a perception system 1120, a decision control system 1130, a drive system 1140, and a computing platform 1150. The vehicle 1100 can include more or fewer subsystems, and each subsystem can include multiple components. In addition, each subsystem and each component of the vehicle 1100 can be interconnected by wired or wireless means.

[0166] In some embodiments, the infotainment system 1110 can include a communication system, an entertainment system, a navigation system, and the like.

[0167] The perception system 1120 can include a number of sensors for sensing information about the environment surrounding the vehicle 1100. For example, the perception system 1120 can include a global positioning system (which can be a GPS system, a Beidou system, or another positioning system), an inertial measurement unit (IMU), a laser radar, a millimeter wave radar, an ultrasonic radar, and a camera.

[0168] The decision control system 1130 can include a computing system, a vehicle controller, a steering system, a throttle, and a braking system.

[0169] The drive system 1140 can include components that provide motive power for the vehicle 1100. In one embodiment, the drive system 1140 can include an engine, an energy source, a transmission system, and wheels. The engine can be one or a combination of an internal combustion engine, an electric motor, an air compression engine, or the like. The engine can convert energy provided by the energy source into mechanical energy.

[0170] Some or all of the functionality of the vehicle 1100 is controlled by a computing platform 1150. The computing platform 1150 can include at least one processor 1151 and a memory 1152, the processor 1151 can execute instructions 1153 stored in the memory 1152.

[0171] The processor 1151 can be any conventional processor, such as commercially available CPUs. The processor can also include a Graphics Process Unit (GPU), a Field Programmable Gate Array (FPGA), a System on Chip (SOC), an Application Specific Integrated Circuit (ASIC), or a combination thereof.

[0172] The memory 1152 can be implemented by any type of volatile or nonvolatile memory or a combination thereof, such as static random access memory (SRAM), electrically erasable programmable read only memory (EEPROM), erasable programmable read only memory (EPROM), programmable read only memory (PROM), read only memory (ROM), magnetic memory, flash memory, magnetic disk or optical disk.

[0173] In addition to the instructions 1153, the memory 1152 can also store data, such as road maps, route information, the position, direction, speed, etc. of the vehicle. The data stored in the memory 1152 can be used by the computing platform 1150.

[0174] In the embodiments of the present disclosure, the processor 1151 can execute the instructions 1153 to complete all or part of the steps of the vehicle charging method described above.

[0175] The present disclosure also provides a computer readable storage medium having stored thereon computer program instructions, which, when executed by a processor, implement the steps of the vehicle charging method provided by the present disclosure.

[0176] The present disclosure also provides a computer program product comprising a computer program, which, when executed by a processor, implements the steps of the vehicle charging method provided by the present disclosure.

[0177] Furthermore, the word "exemplary" is used herein to mean serving as an example, instance, or illustration. Any aspect or design described herein as "exemplary" is not necessarily to be construed as preferred or advantageous over other aspects or designs. Rather, use of the word exemplary is intended to present concepts in a concrete manner. As used in this application, the term "or" is intended to mean an inclusive "or" rather than an exclusive "or". That is, unless specified otherwise, or clear from context, "X employs A or B" is intended to mean any of the natural inclusive permutations. That is, if X employs A; X employs B; or X employs both A and B, then "X employs A or B" is satisfied under any of the foregoing instances. In addition, the articles "a" and "an" as used in this application and the appended claims should generally be construed to mean "one or more" unless specified otherwise or clear from context to be directed to a singular form. Thus, use of the articles in this application and the following claims is not limiting.

[0178] Also, although the disclosure has been described with respect to only one or more implementations thereof, those skilled in the art will readily appreciate that other alternatives can be used. It is contemplated that the disclosure can be carried out in other specific ways than those expressly disclosed herein. Any and all such changes, modifications, or variations that fall within the general scope of the disclosure are intended to be embraced by the disclosure. Specifically, although the disclosure has been described in language specific to structural features, it is to be understood that the disclosure is not necessarily limited to these specific features. Rather, the specific features of the disclosure are referred to as examples in order to illustrate the disclosure and aid in the enabling of others skilled in the art to practice the disclosure. Unless otherwise specified, the use of the ordinal adjectives such as "first", "second", "third", etc., are to describe a different singular feature or claim rather than to connote any type of priority or chronology between the features so described. It is intended that the disclosure not be limited to particular examples described herein, and the order or sequence of any process or method can be different from that shown or described herein, unless specified otherwise. It is also intended that the disclosure not be limited to the details of construction or the exact electronic structure as described herein, but that numerous variations and modifications will be apparent to those skilled in the art. It is intended that the disclosure not be limited to particular examples described herein, and the order or sequence of any process or method can be different from that shown or described herein, unless specified otherwise. It is also intended that the disclosure not be limited to the details of construction or the exact electronic structure as described herein, but that numerous variations and modifications will be apparent to those skilled in the art. Furthermore, to the extent that the terms "comprises", "comprising", "including", and "having" are used in the detailed description and claims, these terms are intended to be inclusive in a manner similar to that of the term "comprising" as an open transition so as to mean that, without excluding other elements or methods. Furthermore, to the extent that the phrase "other

[0179] Other embodiments of the disclosure will be apparent to those skilled in the art from consideration of the specification and practice of the features of the disclosure disclosed herein. It is intended that the specification and examples be considered as exemplary only, with the true scope and spirit of the disclosure being indicated by the following claims.

[0180] It is to be understood that the disclosure is not limited to the precise construction described in the specification and shown in the drawings, and that various modifications and changes can be effected therein by those skilled in the art without departing from the scope of the disclosure. The scope of the disclosure is limited only by the claims appended hereto.

Claims

1. A vehicle charging method, characterized in that, Includes the following steps: Obtain the vehicle's current location coordinates; From the charging piles on the electronic map, the target charging pile is determined; wherein the location of the target charging pile matches the coordinates of the current location; The charging voltage value of the vehicle is determined based on the marking information of the target charging station in the electronic map; wherein, the marking information of the target charging station is used to characterize whether there is a voltage compatibility issue with the target charging station; The charging voltage value is sent to the target charging station so that the vehicle can be charged by the target charging station at the charging voltage value.

2. The vehicle charging method according to claim 1, characterized in that, Determining the charging voltage value of the vehicle based on the marker information of the target charging station in the electronic map includes: If the marking information indicates that the target charging station has a voltage compatibility problem, the voltage platform parameters of the vehicle are obtained; If the voltage platform parameter of the vehicle is a first preset voltage value, then the charging voltage value of the vehicle is determined to be a second preset voltage value; wherein the first preset voltage value is greater than the second preset voltage value.

3. The vehicle charging method according to claim 1, characterized in that, Determining the charging voltage value of the vehicle based on the marking information of the target charging pile includes: If the marking information indicates that the target charging station does not have voltage compatibility issues, obtain the voltage platform parameters of the vehicle; If the voltage platform parameter of the vehicle is a first preset voltage value, then the charging voltage value of the vehicle is determined to be the first preset voltage value.

4. The vehicle charging method according to claim 2 or 3, characterized in that, The step of determining the charging voltage value of the vehicle based on the marking information of the target charging pile in the electronic map further includes: If the voltage platform parameter of the vehicle is the second preset voltage value, then the charging voltage value of the vehicle is determined to be the second preset voltage value.

5. The vehicle charging method according to claim 3, characterized in that, The method further includes: Determine whether the vehicle is successfully charged at the first preset voltage value; If the vehicle fails to charge at the first preset voltage value, then control the vehicle to reconnect to the target charging station; If the vehicle is successfully reconnected to the target charging station, the charging voltage value of the vehicle is determined to be a second preset voltage value. The second preset voltage value is sent to the target charging station so that the vehicle can be charged by the target charging station at the second preset voltage value.

6. The vehicle charging method according to claim 5, characterized in that, The method further includes; If the vehicle is successfully charged at the first preset voltage value, then the vehicle will continue to be charged at the first preset voltage value through the target charging station.

7. The vehicle charging method according to claim 5, characterized in that, The method further includes: The target charging pile was identified as one with voltage platform compatibility issues. The location of the target charging pile is uploaded to the server so that the server can update the marking information of the target charging pile in the electronic map. The updated marking information is used to indicate that the target charging pile has voltage platform compatibility issues.

8. The vehicle charging method according to claim 5, characterized in that, A switching unit is connected in series between the positive charging port of the vehicle and the charging resistor; The step of controlling the reconnection between the vehicle and the target charging station includes: The switch unit is controlled to open for a set time and then close again to reconnect the vehicle to the target charging station.

9. The vehicle charging method according to claim 8, characterized in that, The switching unit includes: At least one normally closed switch connected in series, or at least one transistor connected in series.

10. A vehicle charging device, characterized in that, The device includes: The acquisition module is used to obtain the current position coordinates of the vehicle; The first determining module is used to determine the target charging pile from the charging piles on the electronic map; wherein the location of the target charging pile matches the coordinates of the current location; The second determining module is used to determine the charging voltage value of the vehicle based on the marking information of the target charging pile in the electronic map; wherein, the marking information of the target charging pile is used to indicate whether there is a voltage compatibility problem with the target charging pile; A charging module is used to send the charging voltage value to the target charging pile so that the vehicle can be charged by the target charging pile at the charging voltage value.

11. The vehicle charging device according to claim 10, characterized in that, The second determining module is used to determine the charging voltage value of the vehicle based on the marking information of the target charging pile in the electronic map, including: If the marking information indicates that the target charging station has a voltage compatibility problem, the voltage platform parameters of the vehicle are obtained; If the voltage platform parameter of the vehicle is a first preset voltage value, then the charging voltage value of the vehicle is determined to be a second preset voltage value; wherein the first preset voltage value is greater than the second preset voltage value.

12. The vehicle charging device according to claim 10, characterized in that, When the second determining module determines the charging voltage value of the vehicle based on the marking information of the target charging pile, it includes: If the marking information indicates that the target charging station does not have voltage compatibility issues, obtain the voltage platform parameters of the vehicle; If the voltage platform parameter of the vehicle is a first preset voltage value, then the charging voltage value of the vehicle is determined to be the first preset voltage value.

13. The vehicle charging device according to claim 11 or 12, characterized in that, When the second determining module determines the charging voltage value of the vehicle based on the marking information of the target charging pile in the electronic map, it further includes: If the voltage platform parameter of the vehicle is the second preset voltage value, then the charging voltage value of the vehicle is determined to be the second preset voltage value.

14. The vehicle charging device according to claim 13, characterized in that, The device further includes: The judgment module is used to determine whether the vehicle is successfully charged with the first preset voltage value; The control module is used to control the reconnection between the vehicle and the target charging pile when the vehicle fails to charge at the first preset voltage value. The second determining module is further configured to determine the charging voltage value of the vehicle as a second preset voltage value when the reconnection between the vehicle and the target charging pile is successful. The charging module is further configured to send the second preset voltage value to the target charging pile so that the vehicle can be charged by the target charging pile at the second preset voltage value.

15. The vehicle charging device according to claim 14, characterized in that, The charging module is also used for: If the vehicle is successfully charged at the first preset voltage value, the vehicle will continue to be charged at the first preset voltage value through the target charging station.

16. The vehicle charging device according to claim 14, characterized in that, The device further includes: The third determining module is used to determine the target charging pile as a charging pile with voltage platform compatibility issues. The update module is used to upload the location of the target charging pile to the server so that the server can update the marking information of the target charging pile in the electronic map. The updated marking information is used to indicate that the target charging pile is a charging pile with voltage platform compatibility issues.

17. The vehicle charging device according to claim 14, characterized in that, A switching unit is connected in series between the positive charging port of the vehicle and the charging resistor; The control module, used to control the reconnection between the vehicle and the target charging station, includes: The switch unit is controlled to open for a set time and then close again to reconnect the vehicle to the target charging station.

18. The vehicle charging device according to claim 17, characterized in that, The switching unit includes: At least one normally closed switch connected in series, or at least one transistor connected in series.

19. A vehicle, characterized in that, include: The vehicle charging device as described in any one of claims 10-18.

20. A computer-readable storage medium having computer program instructions stored thereon, characterized in that, When executed by the processor, the program instructions implement the steps of the vehicle charging method according to any one of claims 1-9.

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