Vehicle fast charging control method, device, equipment and storage medium

By acquiring vehicle operation information and analyzing the fast charging abnormality disable and enable flags, the fast charging enable signal can be precisely controlled, thus solving the safety hazards caused by unreasonable fast charging control and improving charging efficiency and safety.

CN119283688BActive Publication Date: 2026-02-27DONGFENG MOTOR GRP
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Patent Information

Application Number
CN202411108824.0
Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Filing Date
2024-08-13
Publication Date
2026-02-27
Estimated Expiration
2044-08-13

AI Technical Summary

Technical Problem

Existing fast charging technology is poorly controlled, which may cause electric vehicles to fail to charge or even cause fires, posing safety hazards.

Method used

By acquiring vehicle operation information and analyzing the fast charging abnormality disable flag and fast charging enable flag, the fast charging enable signal can be precisely controlled to avoid potential safety hazards.

Benefits of technology

It improves charging efficiency and safety, avoiding the risk of electric vehicles being unable to charge or catching fire due to unreasonable fast charging control.

✦ Generated by Eureka AI based on patent content.

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Abstract

The application discloses a vehicle fast charging control method and device, equipment and a storage medium, relates to the technical field of vehicle charging, and comprises the following steps: acquiring vehicle operation information, obtaining a fast charging abnormal non-enable flag and a fast charging enable flag according to the vehicle operation information, obtaining a fast charging enable signal according to the fast charging abnormal non-enable flag and the fast charging enable flag, and performing a fast charging operation, intelligently analyzing vehicle operation information, accurately controlling a fast charging enable signal, and ensuring charging safety and efficiency.
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Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of vehicle charging, in particular to a vehicle fast charging control method, device, equipment and storage medium. BACKGROUND

[0002] Electric vehicles are gradually becoming the market's first choice due to their energy-saving, high-efficiency, low-emission or zero-emission, low-noise, fast acceleration, and low usage cost. With the continuous expansion of the electric vehicle market, major manufacturers invest in research and development resources to meet the growing market demand. Currently, electric vehicles are generally equipped with fast charging ports that can charge through 220V alternating current to convert electrical energy into direct current for power batteries. However, if the control of the fast charging function is not reasonable, it may not only cause the electric vehicle to be unable to charge, but also cause damage to the power battery and the vehicle-mounted charger, and even cause a vehicle fire in extreme cases, posing a threat to user safety and vehicle performance.

[0003] The existing fast charging performs fast charging for the power battery through the fast charging port. This fast charging function improves charging efficiency, but also brings certain risks. If not controlled reasonably, it may cause the electric vehicle to be unable to charge, or even damage the power battery, and in extreme cases, it may also cause a vehicle fire.

[0004] However, the existing fast charging technology may not have fully considered the unreasonable control of the vehicle fast charging function, which may cause the electric vehicle to be unable to charge, and in extreme cases, the fast charging function may cause a vehicle fire risk, and there is an urgent need for a solution to improve charging safety through intelligent control strategies. SUMMARY

[0005] The main purpose of the present application is to provide a vehicle fast charging control method, device, equipment and storage medium, aiming to solve the technical problem of how to improve the safety of fast charging.

[0006] To achieve the above-mentioned purpose, the present application provides a vehicle fast charging control method, which comprises:

[0007] obtaining vehicle running information;

[0008] According to the vehicle running information, a fast charging abnormality disable flag and a fast charging enable flag are obtained;

[0009] According to the fast charging abnormality disable flag and the fast charging enable flag, a fast charging enable signal is obtained to perform a fast charging operation.

[0010] In an embodiment, the step of obtaining a fast charging abnormality disable flag and a fast charging enable flag according to the vehicle running information comprises:

[0011] According to the vehicle operation information, a fast charging demand flag is obtained;

[0012] According to the vehicle operation information and the fast charging demand flag, the fast charging abnormality disable flag and the fast charging enable flag are obtained.

[0013] In an embodiment, the step of obtaining the fast charging demand flag according to the vehicle operation information comprises:

[0014] According to the vehicle operation information, a vehicle fast charging demand basic flag and a vehicle fast charging demand reset flag are obtained.

[0015] According to the vehicle fast charging demand basic flag and the vehicle fast charging demand reset flag, the fast charging demand flag is obtained.

[0016] In an embodiment, the step of obtaining the vehicle fast charging demand basic flag and the vehicle fast charging demand reset flag according to the vehicle operation information comprises:

[0017] According to the vehicle operation information, a fast charging request flag, a fast charging gun connection flag, a gear lever position, a fast charging state, a battery capacity, a fast charging time, and a communication loss flag are obtained.

[0018] A preset allowed charging capacity and a preset allowed charging time are obtained.

[0019] When the fast charging request flag is a first preset value, the fast charging gun connection flag is a first preset value, and the gear lever position is a preset gear position, it is determined that the vehicle fast charging demand basic flag is a first preset value.

[0020] When any one of the fast charging request flag being the first preset value, the fast charging gun connection flag being the first preset value, and the gear lever position being the preset gear position does not satisfy, it is determined that the vehicle fast charging demand basic flag is a second preset value, the first preset value being different from the second preset value.

[0021] When at least one of the fast charging request flag being a second preset value, the fast charging gun connection flag being a second preset value, the fast charging state being a preset state, the battery capacity exceeding the preset allowed charging capacity, the fast charging time exceeding the preset allowed charging time, and the communication loss flag being a second preset value is satisfied, it is determined that the vehicle fast charging demand reset flag is a first preset value.

[0022] When any one of the following conditions is not met, the vehicle fast charging demand reset flag is determined to be the second preset value: the fast charging request flag is the second preset value, the fast charging gun connection flag is the second preset value, the fast charging state is a preset state, the battery power exceeds the preset allowed charging power, the fast charging time exceeds the preset allowed charging time, and the communication loss flag is the second preset value.

[0023] In an embodiment, the step of determining the fast charging demand flag according to the vehicle fast charging demand basic flag and the vehicle fast charging demand reset flag comprises:

[0024] When the vehicle fast charging demand basic flag is the first preset value and the vehicle fast charging demand reset flag is the second preset value, the fast charging demand flag is determined to be the first preset value.

[0025] When the vehicle fast charging demand basic flag is not the first preset value or the vehicle fast charging demand reset flag is not the second preset value, the fast charging demand flag is determined to be the second preset value.

[0026] In an embodiment, the step of determining the fast charging abnormality disable flag and the fast charging enable flag according to the vehicle operation information and the fast charging demand flag comprises:

[0027] According to the vehicle operation information, a fault request flag is obtained.

[0028] When the fault request flag is the second preset value, the fast charging abnormality disable flag is determined to be the second preset value.

[0029] When the fast charging abnormality disable flag is the second preset value and the fast charging demand flag is the first preset value, the fast charging enable flag is determined to be the first preset value.

[0030] When the fast charging abnormality disable flag is not the second preset value or the fast charging demand flag is not the first preset value, the fast charging enable flag is determined to be the second preset value.

[0031] In an embodiment, the step of obtaining a fast charging enable signal according to the fast charging abnormality disable flag and the fast charging enable flag comprises:

[0032] When the fast charging abnormality disable flag is the first preset value, the fast charging enable signal is determined to be a charging abnormality.

[0033] When the fast charging abnormality non-enabling flag is the second preset value and the fast charging enabling flag is the first preset value, a fast charging enabling signal obtained is not to start fast charging;

[0034] When the fast charging abnormality non-enabling flag is the second preset value and the fast charging enabling flag is the second preset value, a fast charging enabling signal obtained is to start fast charging.

[0035] In addition, to achieve the above object, the application further provides a vehicle fast charging control device, which comprises:

[0036] An acquisition module is configured to acquire vehicle operation information.

[0037] The acquisition module is further configured to obtain a fast charging abnormality non-enabling flag and a fast charging enabling flag according to the vehicle operation information.

[0038] An execution module is configured to obtain a fast charging enabling signal according to the fast charging abnormality non-enabling flag and the fast charging enabling flag, so as to perform a fast charging operation.

[0039] In addition, to achieve the above object, the application further provides a vehicle fast charging control device, which comprises a memory, a processor and a computer program stored in the memory and executable on the processor, and the computer program is configured to implement the steps of the vehicle fast charging control method.

[0040] In addition, to achieve the above object, the application further provides a storage medium, which is a computer readable storage medium, and the storage medium stores a computer program, and the computer program is executed by a processor to implement the steps of the vehicle fast charging control method.

[0041] In addition, to achieve the above object, the application further provides a computer program product, which comprises a computer program, and the computer program is executed by a processor to implement the steps of the vehicle fast charging control method.

[0042] The application acquires vehicle operation information, obtains a fast charging abnormality non-enabling flag and a fast charging enabling flag according to the vehicle operation information, and obtains a fast charging enabling signal according to the fast charging abnormality non-enabling flag and the fast charging enabling flag, so as to perform a fast charging operation. The fast charging enabling signal is accurately controlled by analyzing the vehicle operation information, and the charging efficiency and charging safety are improved. BRIEF DESCRIPTION OF DRAWINGS

[0043] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the following will briefly introduce the drawings needed to be used in the embodiments or prior art description. Obviously, for those skilled in the art, other drawings can also be obtained based on these drawings without any creative effort.

[0044] Figure 1 Flowchart of the first embodiment of the vehicle fast charging control method of the present application;

[0045] Figure 2 Flowchart of the second embodiment of the vehicle fast charging control method of the present application;

[0046] Figure 3 Module structure diagram of the vehicle fast charging control device of the embodiment of the present application;

[0047] Figure 4 Device structure diagram of the hardware running environment involved in the vehicle fast charging control method in the embodiment of the present application.

[0048] The purpose realization, functional features and advantages of the present application will be further described with reference to the embodiments and the accompanying drawings. DETAILED DESCRIPTION

[0049] It should be understood that the specific embodiments described herein are only used to explain the technical solutions of the present application, and are not used to limit the present application.

[0050] In order to better understand the technical solutions of the present application, the following will be described in detail in combination with the drawings in the specification and specific embodiments.

[0051] The main solution of the embodiment of the present application is: obtaining vehicle running information, obtaining fast charging abnormality disable flag and fast charging enable flag according to the vehicle running information, obtaining fast charging enable signal according to the fast charging abnormality disable flag and the fast charging enable flag, and performing fast charging operation.

[0052] Electric vehicles are gradually becoming the market's first choice due to their energy saving, high efficiency, low emission or zero emission, low noise, fast acceleration, and low use cost. With the continuous expansion of the electric vehicle market, major manufacturers have invested in research and development resources to meet the growing market demand. At present, electric vehicles are generally equipped with fast charging ports, which can quickly charge the power battery through the fast charging port. This fast charging function improves the charging efficiency, but also brings certain risks. If not controlled reasonably, it may cause the electric vehicle to be unable to charge, even damage the power battery, and in extreme cases, it may also cause a vehicle fire.

[0053] The application provides a solution for accurately controlling a fast charging enabling signal by analyzing vehicle operation information, thereby improving charging efficiency and charging safety.

[0054] Based on this, the application provides a vehicle fast charging control method, which is described with reference to Figure 1 , Figure 1 FIG. 1 is a flowchart of a first embodiment of the vehicle fast charging control method of the application.

[0055] In this embodiment, the vehicle fast charging control method includes steps S10-S30.

[0056] In step S10, vehicle operation information is obtained.

[0057] It should be noted that the vehicle operation information can obtain a first slow charging request flag, a second slow charging request flag, a slow charging gun connection flag, a gear lever position, a slow charging state, a user set maximum allowed charging capacity, a user set maximum allowed charging time, a communication loss flag, and a fault request flag. Specifically, the vehicle operation information can obtain a power battery management system (BMS) slow charging request flag, a slow charging gun connection flag, a gear lever position, an onboard charger (OBC) slow charging request flag, a remote information processing unit (Tbox) charging reservation state, a vehicle central control screen (IVI) user immediate charging request flag, a BMS slow charging state, a Tbox user stop charging request flag, an IVI user stop charging request flag, an IVI user set maximum allowed charging capacity, an IVI user set maximum allowed charging time, a slow charging time, an IVI user set maximum allowed charging time, a BMS communication loss flag, an OBC communication loss flag, and a slow charging fault request flag.

[0058] Further, the BMS slow charging request flag indicates whether the BMS initiates a slow charging request. The slow charging gun connection flag detects whether the charging gun is correctly connected to the charging interface of the vehicle. The gear lever position ensures that the vehicle is in the parking gear (P gear) to avoid charging in the driving state. The OBC slow charging request flag reflects whether the OBC is ready and requests slow charging. The Tbox charging reservation state shows whether the user has made a charging reservation through the Tbox. The IVI user immediate charging request flag is that the user requests to start charging immediately through the IVI. The BMS slow charging state reports the current charging state of the power battery, such as whether the charging has been completed. The Tbox user stop charging request flag is that the user requests to stop charging through the mobile phone application. The IVI user stop charging request flag is that the user requests to stop charging through the IVI. The battery power reflects the current remaining power of the power battery. The IVI user set maximum allowed charging power is the charging upper limit set by the user through the IVI. The slow charging time records the time that the charging process has lasted. The IVI user set maximum allowed charging time is the maximum charging time limit set by the user through the IVI. The BMS communication loss flag indicates whether the communication between the BMS and the VCU is normal. The OBC communication loss flag indicates whether the communication between the OBC and the VCU is normal. The slow charging fault request flag reflects whether a fault occurs in the slow charging process and the type of the fault.

[0059] The vehicle running information provides necessary data for the control system, helping the system to make correct charging decisions. By monitoring various aspects of the vehicle, potential safety hazards can be discovered in time to avoid accidents. Reasonable use of vehicle running information can improve charging efficiency, meet the individual needs of users, and improve the overall user experience.

[0060] In step S20, according to the vehicle running information, the fast charging abnormality disenable flag and the fast charging enable flag are obtained.

[0061] It should be noted that before obtaining the fast charging disenable flag and the fast charging enable flag, the fast charging demand flag needs to be obtained according to the vehicle running information.

[0062] Further, the vehicle fast charging demand basic flag and the vehicle fast charging demand reset flag are obtained according to the vehicle running information, and the fast charging demand flag is obtained according to the vehicle fast charging demand basic flag and the vehicle fast charging demand reset flag. Specifically, the fast charging request flag, the fast charging gun connection flag, the gear lever position, the fast charging state, the battery power, the fast charging time, and the communication loss flag are obtained according to the vehicle running information. The above obtained flags can be specifically extended to the BMS fast charging request flag, the fast charging gun connection flag, the gear lever position, the Tbox charging reservation state, the IVI user immediate charging request flag, the BMS fast charging state, the Tbox user stop charging request flag, the IVI user stop charging request flag, the IVI user set maximum allowed charging power, the IVI user set maximum allowed charging time, the fast charging time, the IVI user set maximum allowed charging time, and the BMS communication loss flag. Then, the preset allowed charging power and the preset allowed charging time are obtained.

[0063] Further, when the fast charging request flag is a first preset value, the fast charging gun connection flag is the first preset value, and the gear lever position is a preset gear position, it is determined that the vehicle fast charging demand basic flag is the first preset value. When any one of the fast charging request flag, the fast charging gun connection flag, and the gear lever position does not satisfy the condition, it is determined that the vehicle fast charging demand basic flag is a second preset value. The first preset value is different from the second preset value. The first preset value is a value output by setting the flag bit, and the second preset value is a value output by resetting the flag bit. In this embodiment, setting is represented as 1, and resetting is represented as 0. Specifically, when the BMS issues a fast charging request, it indicates that the battery needs to be charged. The fast charging gun connection flag is set to ensure that the fast charging gun has been correctly connected to the vehicle, and the gear lever of the vehicle is in the “P gear”. When these conditions are met at the same time, the fast charging demand basic flag will be set. When any one of the above conditions is not met, the fast charging demand basic flag will be reset. The fast charging demand basic flag at this time is obtained according to the vehicle running information.

[0064] Further, the vehicle fast charging demand reset flag is set to the first preset value when at least one of the following conditions is met: the fast charging request flag is the second preset value, the fast charging gun connection flag is the second preset value, the fast charging state is the preset state, the battery power exceeds the preset allowed charging power, the fast charging time exceeds the preset allowed charging time, and the communication loss flag is the second preset value. The vehicle fast charging demand reset flag is set to the second preset value when any of the following conditions is not met: the fast charging request flag is the second preset value, the fast charging gun connection flag is the second preset value, the fast charging state is the preset state, the battery power exceeds the preset allowed charging power, the fast charging time exceeds the preset allowed charging time, and the communication loss flag is the second preset value. Specifically, the vehicle fast charging demand reset flag is used to determine when the fast charging process should be cancelled. When the BMS fast charging request flag is reset, the fast charging gun connection flag is reset, the BMS fast charging state is "complete", the Tbox user stops charging request flag is set, the IVI user stops charging request flag is set, the battery power is equal to or exceeds the maximum allowed charging power set by the user, the fast charging time is equal to or exceeds the maximum allowed charging time set by the user, the BMS communication is lost, the fast charging fault request action is "inhibit fast charging", the Tbox reservation charging state is "there is a reservation and the reservation end time has arrived", the Tbox charging reservation state is "there is a reservation and the reservation time has not arrived", and the IVI user immediately charging request flag is reset, the vehicle fast charging demand reset flag is set, which means that the current fast charging demand should be cancelled.

[0065] Further, the fast charging demand flag is determined according to the state of the fast charging demand basic flag and the request fast charging demand reset flag. Then, the fast charging abnormality disable flag and the fast charging enable flag are determined according to the fast charging demand flag.

[0066] In step S30, the fast charging enable signal is obtained according to the fast charging abnormality disable flag and the fast charging enable flag, so as to perform the fast charging operation.

[0067] It should be noted that the fast charging abnormality disable flag and the fast charging enable flag are two key logical judgment points that jointly determine the final state of the fast charging enable signal, thereby controlling the start or stop of the charging operation. The fast charging abnormality disable flag is set based on a series of safety detection conditions, including but not limited to the fault signals reported by the BMS, the connection state of the fast charging gun, and the physical state of the vehicle, etc. If any of these conditions is triggered, indicating that there is a charging safety risk, the fast charging abnormality disable flag will be set, preventing the start of the charging process. At the same time, the fast charging enable flag is the result of the evaluation based on the current state of the vehicle and the user's demand. When the battery level of the vehicle is lower than the user's set threshold, the user issues a charging request through IVI or Tbox, and the vehicle is in a safe charging state, the fast charging enable flag will be set, indicating that the vehicle is ready for fast charging.

[0068] Further, when the fast charging abnormality disable flag is the first preset value, the fast charging enable signal is obtained as charging abnormality, when the fast charging abnormality disable flag is set to the first preset value, it means that the charging system detects potential abnormality or fault condition, which may include battery failure detected by BMS, charging gun connection problem, or other safety related alarm signals. In this case, the system will automatically set the fast charging enable signal to "charging abnormality" to ensure that the charging process will not be started under the condition of safety risk.

[0069] Further, when the fast charging abnormality disable flag is the second preset value and the fast charging enable flag is the first preset value, the fast charging enable signal is obtained as not starting fast charging. When the fast charging abnormality disable flag is set to the second preset value, it usually means that although the system does not detect immediate charging safety risk, there are certain conditions that do not meet the requirements for starting charging, such as the battery level is full or the user has canceled the charging request through IVI or Tbox. At the same time, if the fast charging enable flag is also set to the first preset value, it may indicate that the vehicle is in a state that can be fast charged, but due to the higher priority of the abnormality disable flag, the system will consider these information comprehensively, and finally decide not to start fast charging.

[0070] Further, when the fast charging abnormality disable flag is set to the second preset value and the fast charging enable flag is set to the second preset value, the fast charging enable signal is obtained as "start fast charging". When the fast charging abnormality disable flag is set to the second preset value, it indicates that the system has not detected any charging abnormality or failure, and the charging environment is in a safe state. At the same time, the fast charging enable flag is also set to the second preset value, which usually means that all charging conditions have been met, including the battery power being below a preset threshold, the user has issued a charging request, the vehicle is in a proper state, etc. In this case, the system will comprehensively consider these conditions and determine that it is appropriate to start fast charging. Therefore, the fast charging enable signal will be set to "start fast charging", allowing the charging process to proceed smoothly on the basis of safety and user demand.

[0071] The embodiment provides a vehicle fast charging control method, by obtaining vehicle running information, according to the vehicle running information, obtaining a fast charging abnormality disable flag and a fast charging enable flag, according to the fast charging abnormality disable flag and the fast charging enable flag, obtaining a fast charging enable signal to perform a fast charging operation, by analyzing the vehicle running information, accurately controlling the fast charging enable signal, improving the charging efficiency and the charging safety.

[0072] Based on the first embodiment of the present application, in the second embodiment of the present application, the same or similar contents as the above-mentioned first embodiment can be referred to the above introduction, and will not be repeated hereinafter. On this basis, please refer to Figure 2 , the vehicle fast charging control method step S20 further comprises steps S201-S202:

[0073] Step S201, according to the vehicle running information, obtaining a fast charging demand flag.

[0074] It should be noted that in the vehicle fast charging control method, the fast charging demand flag is obtained according to the vehicle running information, which is the basis for intelligent charging management. This process involves a comprehensive evaluation of the current state of the vehicle, user demand and safety conditions to determine whether to start the fast charging program.

[0075] Specifically, the system monitors key information provided by the BMS, including battery level, voltage, and temperature, to assess the battery's charging needs and health status. If the battery level is below the user-set charging threshold, this will be a factor in initiating fast charging. Secondly, the system checks the vehicle's physical status, including whether the charging gun is connected, whether the vehicle is parked, and whether the gear lever is in "P" (Park) mode, ensuring that the physical conditions for charging are met. Furthermore, the system assesses the vehicle's electrical status, such as the BMS's communication status, to ensure accurate information transmission during charging. The user's charging requests via IVI or Tbox are also a crucial factor in determining fast charging demand. User charging preferences, such as maximum allowable charging capacity and charging time, are taken into account to meet individual user needs. Finally, the system integrates all this information and, through a series of logical judgments, obtains a basic fast charging demand flag and a fast charging demand reset flag. Then, based on these flags, the fast charging demand flag is determined. If all conditions are met, the fast charging demand flag is set. If any of the conditions are not met, the fast charging demand flag will be reset, and fast charging will not be performed.

[0076] Furthermore, when the basic flag for meeting the vehicle's fast charging requirement is at a first preset value and the fast charging requirement reset flag is at a second preset value, the fast charging requirement flag is determined to be at the first preset value. When the basic flag for the vehicle's fast charging requirement is set to the first preset value, it indicates that the vehicle's battery level is lower than the user-set charging threshold, and other basic conditions required for charging, such as charging gun connection and the vehicle being parked, have been met. Meanwhile, if the fast charging requirement reset flag is at the second preset value, it means that no conditions for stopping charging have been triggered, such as the user canceling the charging request or the battery being fully charged. In this case, the system determines the fast charging requirement flag to be at the first preset value, thus confirming that the vehicle needs to be fast charged.

[0077] Furthermore, when the vehicle fast charging demand basic flag is not at the first preset value or the vehicle fast charging demand reset flag is not at the second preset value, the fast charging demand flag is determined to be the second preset value. When the vehicle fast charging demand basic flag does not reach the first preset value, meaning the vehicle's battery level is not lower than the user-set charging threshold, or basic charging conditions such as the charging gun not being connected or the vehicle not being parked are not met, the fast charging process will not start. Similarly, if the vehicle fast charging demand reset flag is not the second preset value, for example, if the user has canceled the charging request or the battery is fully charged, this indicates that the fast charging demand no longer exists or is no longer necessary. In either of these cases, the system will determine the fast charging demand flag to be the second preset value, meaning fast charging will not be initiated.

[0078] Step S202, according to the vehicle operation information and the fast charging demand flag, the fast charging abnormality disable flag and the fast charging enable flag are obtained.

[0079] It should be noted that according to the vehicle operation information, the system first evaluates whether the basic conditions for fast charging are met, such as battery capacity, charging gun connection state, whether the vehicle is in a parked state, etc., to determine the fast charging demand flag. If these conditions are met, the fast charging demand flag will indicate the charging demand. Subsequently, the system further analyzes whether there are any factors that may affect the safety of charging, such as battery failure, charging equipment abnormality, etc., to determine the fast charging abnormality disable flag. If no abnormality is detected, this flag will not be set, indicating that the charging environment is safe. Conversely, if the system detects an abnormality, the abnormality disable flag will be set, preventing the charging process. At the same time, if all conditions are normal and there are no abnormalities, the fast charging enable flag will be set, allowing the charging operation to proceed.

[0080] Further, according to the vehicle operation information, the fault request flag is obtained. The fault request flag includes but is not limited to BMS high-voltage relay fault request action, BMS insulation fault flag, BMS high-voltage interlock fault flag, BMS thermal runaway alarm flag signal, BMS high-voltage relay actual state. When the fault request flag is a first preset value, the fast charging abnormality disable flag is determined to be a first preset value. When the fault request flag is set to a first preset value, it indicates that the vehicle's charging system has encountered a critical fault or abnormality, for example, when the BMS high-voltage relay fault request action is "open relay", these situations may pose a direct threat to charging safety or cause damage to charging equipment. In this case, the system will determine that the fast charging abnormality disable flag is a first preset value, meaning that the system will immediately prohibit the charging operation to prevent the fault from further deteriorating.

[0081] Further, when the fault request flag is a second preset value, the fast charging abnormality disable flag is determined to be a second preset value, when the fault request flag is set to a second preset value, it usually indicates that the vehicle's charging system has detected that there is no fault or abnormal situation, for example, when the BMS high-voltage relay actual state is "attracted", the system can choose to continue the charging operation, while monitoring and recording these abnormal situations for further diagnosis and handling.

[0082] Further, when the fast charging abnormality non-enabling flag is the second preset value and the fast charging demand flag is the first preset value, it is determined that the fast charging enabling flag is the first preset value. When the fast charging abnormality non-enabling flag is set to the second preset value, it indicates that the system has not detected any critical failure or abnormality, and the charging environment is in a safe state without immediate safety risks. At the same time, if the fast charging demand flag is the first preset value, it indicates that the vehicle indeed needs to be fast charged according to the battery level of the vehicle, user settings and other charging conditions. In the case where both conditions are met, the system will determine that the fast charging enabling flag is the first preset value, i.e., allowing the charging process to start.

[0083] Further, when the fast charging abnormality non-enabling flag is not the second preset value or the fast charging demand flag is not the first preset value, it is determined that the fast charging enabling flag is the second preset value. If the fast charging abnormality non-enabling flag is not the second preset value, i.e., the system detects some failure or abnormal condition, which can include battery problems, charging device failure or other safety hazards, the system will set the fast charging enabling flag to the second preset value to prevent the charging process and ensure safety. Similarly, if the fast charging demand flag is not the first preset value, it indicates that the vehicle does not need to be charged at the moment, which can be due to sufficient battery level or no charging request from the user. In either of the two cases, the fast charging enabling flag will be set to the second preset value, meaning that the charging operation will not start, thereby avoiding charging in inappropriate or unsafe conditions.

[0084] The embodiment obtains the fast charging demand flag according to the vehicle operation information, and obtains the fast charging abnormality non-enabling flag and the fast charging enabling flag according to the vehicle operation information and the fast charging demand flag. Through real-time monitoring, the charging safety is ensured, the charging efficiency is optimized, and the user experience is improved.

[0085] The application also provides a vehicle fast charging control device, please refer to Figure 3 , the device comprises:

[0086] The acquisition module 10 is configured to acquire vehicle operation information.

[0087] The acquisition module 10 is further configured to obtain a fast charging abnormality non-enabling flag and a fast charging enabling flag according to the vehicle operation information.

[0088] The execution module 20 is configured to obtain a fast charging enabling signal according to the fast charging abnormality non-enabling flag and the fast charging enabling flag, so as to perform a fast charging operation.

[0089] The vehicle fast charging control device provided by the application adopts the vehicle fast charging control method in the above embodiments, and can solve the technical problem of how to improve the charging efficiency and safety. Compared with the prior art, the vehicle fast charging control device provided by the application has the same beneficial effects as the vehicle fast charging control method provided by the above embodiments, and other technical features in the vehicle fast charging control device are the same as the features disclosed in the above embodiments, which will not be repeated here.

[0090] In an embodiment, the obtaining module 10 is further configured to obtain a fast charging demand flag according to the vehicle operation information; and obtain a fast charging abnormal charging disenable flag and a fast charging charging enable flag according to the vehicle operation information and the fast charging demand flag.

[0091] In an embodiment, the obtaining module 10 is further configured to obtain a fast charging demand basic flag and a fast charging demand reset flag according to the vehicle operation information; and obtain the fast charging demand flag by judging the fast charging demand basic flag and the fast charging demand reset flag.

[0092] In an embodiment, the obtaining module 10 is further configured to obtain a fast charging request flag, a fast charging gun connection flag, a gear lever position, a fast charging state, a battery capacity, a fast charging time, and a communication loss flag according to the vehicle operation information; obtain a preset allowed charging capacity and a preset allowed charging time; determine that the fast charging demand basic flag is a first preset value when the fast charging request flag is the first preset value, the fast charging gun connection flag is the first preset value, and the gear lever position is a preset gear position; determine that the fast charging demand basic flag is a second preset value when any one of the fast charging request flag being the first preset value, the fast charging gun connection flag being the first preset value, and the gear lever position being the preset gear position is not satisfied, the first preset value being different from the second preset value; and determine that the fast charging demand reset flag is the first preset value when at least one of the fast charging request flag being a second preset value, the fast charging gun connection flag being the second preset value, the fast charging state being a preset state, the battery capacity exceeding the preset allowed charging capacity, the fast charging time exceeding the preset allowed charging time, and the communication loss flag being the second preset value is satisfied; and determine that the fast charging demand reset flag is the second preset value when any one of the fast charging request flag being the second preset value, the fast charging gun connection flag being the second preset value, the fast charging state being the preset state, the battery capacity exceeding the preset allowed charging capacity, the fast charging time exceeding the preset allowed charging time, and the communication loss flag being the second preset value is not satisfied.

[0093] In an embodiment, the obtaining module 10 is further configured to determine that the fast charging demand flag is the first preset value when the vehicle fast charging demand basic flag is the first preset value and the vehicle fast charging demand reset flag is the second preset value; and determine that the fast charging demand flag is the second preset value when the vehicle fast charging demand basic flag is not the first preset value or the vehicle fast charging demand reset flag is not the second preset value.

[0094] In an embodiment, the obtaining module 10 is further configured to obtain a fault request flag according to the vehicle operation information; determine that the fast charging abnormality disable flag is the second preset value when the fault request flag is the second preset value; determine that the fast charging enable flag is the first preset value when the fast charging abnormality disable flag is the second preset value and the fast charging demand flag is the first preset value; and determine that the fast charging enable flag is the second preset value when the fast charging abnormality disable flag is not the second preset value or the fast charging demand flag is not the first preset value.

[0095] In an embodiment, the executing module 20 is further configured to obtain the fast charging enable signal as charging abnormality when the fast charging abnormality disable flag is the first preset value; obtain the fast charging enable signal as not starting fast charging when the fast charging abnormality disable flag is the second preset value and the fast charging enable flag is the first preset value; and obtain the fast charging enable signal as starting fast charging when the fast charging abnormality disable flag is the second preset value and the fast charging enable flag is the second preset value.

[0096] The present application provides a vehicle fast charging control device, which comprises at least one processor and a memory connected with the at least one processor; the memory stores instructions executable by the at least one processor, and the instructions are executed by the at least one processor to enable the at least one processor to perform the vehicle fast charging control method in the above-mentioned embodiment one.

[0097] Reference will be made to the following description Figure 4 which shows a structural schematic diagram of a vehicle fast charging control device suitable for implementing the embodiments of the present application. The vehicle fast charging control device in the embodiments of the present application can include, but is not limited to, mobile terminals such as mobile phones, notebook computers, digital broadcast receivers, PDAs (Personal Digital Assistant), PADs (Portable Application Description), PMPs (Portable Media Player), vehicle-mounted terminals (for example, vehicle-mounted navigation terminals), and the like, and fixed terminals such as digital TVs, desktop computers, and the like. Figure 4The illustrated vehicle fast charging control device is merely an example and should not bring any limitation to the function and use range of the embodiments of the present application.

[0098] As shown in Figure 4 The vehicle fast charging control device can include a processing device 1001 (e.g., a central processing unit, a graphics processing unit, etc.) that can perform various appropriate actions and processes according to a program stored in a read-only memory (ROM) 1002 or a program loaded from a storage device 1003 into a random access memory (RAM) 1004. In the RAM 1004, various programs and data required for the operation of the vehicle fast charging control device are also stored. The processing device 1001, the ROM 1002, and the RAM 1004 are connected to each other through a bus 1005. An input / output (I / O) interface 1006 is also connected to the bus. Generally, the following systems can be connected to the I / O interface 1006: an input device 1007 including, for example, a touch screen, a touch pad, a keyboard, a mouse, an image sensor, a microphone, an accelerometer, a gyroscope, etc.; an output device 1008 including, for example, a liquid crystal display (LCD), a speaker, a vibrator, etc.; the storage device 1003 including, for example, a magnetic tape, a hard disk, etc.; and a communication device 1009. The communication device 1009 can allow the vehicle fast charging control device to communicate wirelessly or by wire with other devices to exchange data. Although the vehicle fast charging control device having various systems is shown in the figure, it should be understood that all the illustrated systems are not required to be implemented or provided. More or fewer systems can be alternatively implemented or provided.

[0099] In particular, according to the embodiments disclosed in the present application, the processes described above with reference to the flowcharts can be implemented as a computer software program. For example, the embodiments disclosed in the present application include a computer program product comprising a computer program carried on a computer readable medium, the computer program containing program codes for executing the methods shown in the flowcharts. In such embodiments, the computer program can be downloaded and installed from a network through the communication device, or installed from the storage device 1003, or installed from the ROM 1002. When the computer program is executed by the processing device 1001, the above-mentioned functions defined in the methods of the embodiments disclosed in the present application are performed.

[0100] The vehicle fast charging control device provided by the application adopts the vehicle fast charging control method in the above embodiment, and can solve the technical problem of how to improve charging efficiency and safety. Compared with the prior art, the vehicle fast charging control device provided by the application has the same beneficial effects as the vehicle fast charging control method provided by the above embodiment, and other technical features in the vehicle fast charging control device are the same as the features disclosed in the previous embodiment method, which will not be repeated here.

[0101] It should be understood that various parts of the present application can be realized by hardware, software, firmware or a combination thereof. In the description of the above embodiments, specific features, structures, materials or characteristics can be combined in any one or more embodiments or examples in a suitable manner.

[0102] The above is merely specific implementation of the present application, but the protection scope of the present application is not limited thereto, and any person skilled in the art can easily think of changes or replacements within the technical scope disclosed by the present application, which should be covered within the protection scope of the present application. Therefore, the protection scope of the present application should be subject to the protection scope of the claims.

[0103] The present application provides a computer readable storage medium having computer readable program instructions (i.e. computer programs) stored thereon, the computer readable program instructions being used to execute the vehicle fast charging control method in the above embodiment.

[0104] The computer readable storage medium provided by the present application may, for example, be a U disk, but is not limited to an electric, magnetic, optical, electromagnetic, infrared, or semiconductor system, system or device, or any combination thereof. More specific examples of computer readable storage media can include, but are not limited to, an electric connection with one or more conductive wires, a portable computer disk, a hard disk, a random access memory (RAM), a read-only memory (ROM), an erasable programmable read-only memory (EPROM or flash memory), an optical fiber, a portable compact disk read-only memory (CD-ROM), an optical storage device, a magnetic storage device, or any suitable combination thereof. In the present embodiment, the computer readable storage medium can be any tangible medium containing or storing a program that can be used by or in conjunction with an instruction execution system, system or device. The program code contained on the computer readable storage medium can be transmitted by any suitable medium, including but not limited to: electric wire, optical cable, RF (Radio Frequency: radio frequency), etc., or any suitable combination thereof.

[0105] The computer readable storage medium can be included in the vehicle fast charging control device, or can exist separately and not be assembled into the vehicle fast charging control device.

[0106] The computer readable storage medium carries one or more programs, which, when executed by the vehicle fast charging control device, enable the vehicle fast charging control device to be written in one or more programming languages or combinations thereof for executing computer program codes for performing the operations of the present application, the programming languages including object-oriented programming languages such as Java, Smalltalk, C++, and conventional procedural programming languages such as "C" language or similar programming languages. The program codes can be executed entirely on the user computer, partially on the user computer, as an independent software package, partially on the user computer and partially on a remote computer, or entirely on a remote computer or server. In the case involving a remote computer, the remote computer can be connected to the user computer through any kind of network, including a local area network (LAN) or a wide area network (WAN), or can be connected to an external computer (for example, through the Internet by using an Internet service provider).

[0107] The flowcharts and block diagrams in the accompanying drawings illustrate the possible implementation architectures, functions and operations of the systems, methods and computer program products according to various embodiments of the present application. In this regard, each block in the flowcharts or block diagrams can represent a module, a program segment, or a part of code containing one or more executable instructions for implementing the specified logical functions. It should also be noted that in some alternative implementations, the functions noted in the blocks can occur in different orders than those noted in the accompanying drawings. For example, two blocks represented in succession can actually be executed substantially in parallel, and sometimes in reverse order, depending on the functions involved. It should also be noted that each block in the block diagrams and / or flowcharts, and the combination of blocks in the block diagrams and / or flowcharts, can be implemented by a dedicated hardware-based system for performing the specified functions or operations, or can be implemented by a combination of dedicated hardware and computer instructions.

[0108] The modules involved in the embodiments of the present application can be implemented in software or in hardware. In some cases, the names of the modules do not constitute a limitation on the modules themselves.

[0109] The readable storage medium provided by the application is a computer readable storage medium, which stores computer readable program instructions (i.e. computer programs) for executing the vehicle fast charging control method described above, and can solve the technical problem of how to improve the charging efficiency and safety. Compared with the prior art, the computer readable storage medium provided by the application has the same beneficial effects as the vehicle fast charging control method provided by the above-mentioned embodiments, and will not be repeated here.

[0110] The application also provides a computer program product comprising a computer program which, when executed by a processor, implements the steps of the vehicle fast charging control method as described above.

[0111] The computer program product provided by the application can solve the technical problem of how to improve the charging efficiency and safety. Compared with the prior art, the computer program product provided by the application has the same beneficial effects as the vehicle fast charging control method provided by the above-mentioned embodiments, and will not be repeated here.

[0112] The above-mentioned is only part of the embodiments of the application, and does not limit the patent scope of the application. Any equivalent structural transformation, direct / indirect application in other related technical fields based on the technical concept of the application, and the contents of the specification and drawings are included in the patent protection scope of the application.

Claims

1. A vehicle fast charging control method, characterized by, The method comprises: acquiring vehicle operation information; obtaining a fast-charging abnormality non-enable flag and a fast-charging enable flag according to the vehicle operation information; obtaining a fast-charging enable signal according to the fast-charging abnormality non-enable flag and the fast-charging enable flag to perform a fast-charging operation; the step of obtaining the fast-charging abnormality non-enable flag and the fast-charging enable flag according to the vehicle operation information comprises: obtaining a fast-charging demand flag according to the vehicle operation information; obtaining the fast-charging abnormality non-enable flag and the fast-charging enable flag according to the vehicle operation information and the fast-charging demand flag; the step of obtaining the fast-charging demand flag according to the vehicle operation information comprises: obtaining a vehicle fast-charging demand basic flag and a vehicle fast-charging demand reset flag according to the vehicle operation information; judging the fast-charging demand flag according to the vehicle fast-charging demand basic flag and the vehicle fast-charging demand reset flag.

2. The method of claim 1, wherein, the step of obtaining the vehicle fast-charging demand basic flag and the vehicle fast-charging demand reset flag according to the vehicle operation information comprises: obtaining a fast-charging request flag, a fast-charging gun connection flag, a gear lever position, a fast-charging state, a battery capacity, a fast-charging time, and a communication loss flag according to the vehicle operation information; acquiring a preset allowed charging capacity and a preset allowed charging time; when the fast-charging request flag is a first preset value, the fast-charging gun connection flag is a first preset value, and the gear lever position is a preset gear position, determining that the vehicle fast-charging demand basic flag is a first preset value; when any one of the following conditions is not met, determining that the vehicle fast-charging demand basic flag is a second preset value: the fast-charging request flag is a first preset value, the fast-charging gun connection flag is a first preset value, and the gear lever position is a preset gear position, the first preset value being different from the second preset value; when at least one of the following conditions is met, determining that the vehicle fast-charging demand reset flag is a first preset value: the fast-charging request flag is a second preset value, the fast-charging gun connection flag is a second preset value, the fast-charging state is a preset state, the battery capacity exceeds the preset allowed charging capacity, the fast-charging time exceeds the preset allowed charging time, and the communication loss flag is a second preset value; when any one of the following conditions is not met, determining that the vehicle fast-charging demand reset flag is a second preset value: the fast-charging request flag is a second preset value, the fast-charging gun connection flag is a second preset value, the fast-charging state is a preset state, the battery capacity exceeds the preset allowed charging capacity, the fast-charging time exceeds the preset allowed charging time, and the communication loss flag is a second preset value.

3. The method of claim 1, wherein, the step of judging the fast-charging demand flag according to the vehicle fast-charging demand basic flag and the vehicle fast-charging demand reset flag comprises: determining that the fast charging demand flag is the first preset value when the vehicle fast charging demand basic flag is the first preset value and the vehicle fast charging demand reset flag is the second preset value; determining that the fast charging demand flag is the second preset value when the vehicle fast charging demand basic flag is not the first preset value or the vehicle fast charging demand reset flag is not the second preset value.

4. The method of claim 1, wherein, The step of obtaining the fast charging abnormality disable flag and the fast charging enable flag according to the vehicle operation information and the fast charging demand flag comprises: obtaining a fault request flag according to the vehicle operation information; determining that the fast charging abnormality disable flag is the second preset value when the fast charging abnormality disable flag is the second preset value and the fast charging demand flag is the first preset value; determining that the fast charging enable flag is the first preset value when the fast charging abnormality disable flag is the second preset value and the fast charging demand flag is the first preset value; determining that the fast charging enable flag is the second preset value when the fast charging abnormality disable flag is not the second preset value or the fast charging demand flag is not the first preset value.

5. The method of claim 1, wherein, The step of obtaining the fast charging enable signal according to the fast charging abnormality disable flag and the fast charging enable flag comprises: obtaining the fast charging enable signal as charging abnormality when the fast charging abnormality disable flag is the first preset value; obtaining the fast charging enable signal as not starting fast charging when the fast charging abnormality disable flag is the second preset value and the fast charging enable flag is the first preset value; obtaining the fast charging enable signal as starting fast charging when the fast charging abnormality disable flag is the second preset value and the fast charging enable flag is the second preset value.

6. A vehicle fast charging control device characterized by comprising: The device comprises: an obtaining module configured to obtain vehicle operation information; the obtaining module is further configured to obtain a fast charging abnormality disable flag and a fast charging enable flag according to the vehicle operation information; the obtaining module is further configured to obtain a fast charging demand flag according to the vehicle operation information; obtaining the fast charging abnormality disable flag and the fast charging enable flag according to the vehicle operation information and the fast charging demand flag; the obtaining module is further configured to obtain a vehicle fast charging demand basic flag and a vehicle fast charging demand reset flag according to the vehicle operation information; obtaining a fast charging demand flag according to the vehicle operation information; determining that the fast charging enable flag is the first preset value when the fast charging abnormality disable flag is the second preset value and the fast charging demand flag is the first preset value; 7. A vehicle fast charging control apparatus characterized by comprising: determining that the fast charging enable flag is the second preset value when the fast charging abnormality disable flag is not the second preset value or the fast charging demand flag is not the first preset value. The device comprises: a memory, a processor and a vehicle fast charging control program stored on the memory and executable on the processor, and the vehicle fast charging control program is configured to implement the steps of the vehicle fast charging control method according to any one of claims 1 to 5.

8. A storage medium, characterized by The storage medium stores a vehicle fast charging control program, and the vehicle fast charging control program, when executed by the processor, implements the steps of the vehicle fast charging control method according to any one of claims 1 to 5.

Citation Information

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