Charging control method and device and vehicle

Abstract

The invention discloses a charging control method and device for preventing overdischarge of a battery in a charging process, which are applied to a vehicle, and in the charging process, the charging parameter value of the vehicle and the SOC state of the battery are detected, the abnormal charging of the vehicle is judged, and the risk of overdischarge of the battery of the vehicle is identified and determined. Charging is timely and actively ended or a user is informed of abnormal charging, battery over-discharge of the vehicle is prevented from influencing battery performance, and the situation that the vehicle cannot be started due to battery over-discharge, the vehicle use planning of the user is influenced, and inconvenience is brought to the user is avoided.

Description

Technical Field

[0001] The present invention relates to a charging control method, and in particular to a charging control method, a device and a vehicle. Background Art

[0002] In the related technology, when a vehicle is charging, the vehicle may experience charging abnormalities due to various problems such as a malfunction of the on-board charger or charging pile, but the vehicle is still in the charging process and the vehicle's charging-related devices are still in working condition. When the vehicle's SOC value is already very low, it is easy to cause the vehicle's battery to over-discharge, resulting in problems such as the vehicle being unable to start, affecting the user's vehicle planning and experience, and causing unnecessary trouble or even losses to the user. Summary of the invention

[0003] The invention provides a charging control method, a charging control device and a vehicle.

[0004] In a first aspect, the present invention provides a charging control method, the charging control method comprising:

[0005] When the vehicle is being charged, if it is determined that the battery of the vehicle is at risk of over-discharge, the charging is actively terminated and / or the user is notified of the charging abnormality.

[0006] When the vehicle is AC charging, the vehicle enters the charging process, and the vehicle's charging-related devices are in working condition. If the charging is abnormal due to various problems such as a malfunction of the on-board charger or the charging pile, the battery cannot be charged normally, but the vehicle's charging process has not yet ended, the vehicle's charging-related devices are still in working condition, consuming the battery's energy. In other words, the battery is not charged to replenish energy, but is continuously consuming energy. If the above state is maintained for a long time, the vehicle's battery is at risk of over-discharge.

[0007] After determining that the vehicle's battery is at risk of over-discharge, the system will actively terminate charging or notify the user of charging abnormalities so that the user can know the vehicle status and terminate charging. After charging is completed, the vehicle exits the charging process and the vehicle's charging-related devices stop working, thereby effectively reducing the overall energy consumption of the battery, preventing the vehicle's battery from over-discharging, and greatly reducing problems such as the vehicle being unable to start due to over-discharge of the vehicle's battery, thereby avoiding affecting the user's vehicle planning and vehicle experience, and causing unnecessary trouble or even losses to the user.

[0008] In some possible embodiments, the charging control method further includes:

[0009] According to the parameter value of the charging parameter of the vehicle and the SOC value of the battery of the vehicle, it is determined that there is a risk of over-discharge of the battery of the vehicle.

[0010] In some possible embodiments, the parameter value of the charging parameter is obtained by performing patrol inspection on the charging parameter.

[0011] In some possible embodiments, the charging parameters of the vehicle include at least one or more of a CP duty cycle, an AC charging voltage, an AC charging current, and a maximum allowed AC charging current.

[0012] In some possible embodiments, determining whether the battery of the vehicle has an over-discharge risk according to the parameter value of the charging parameter of the vehicle and the SOC value of the battery of the vehicle includes:

[0013] If the parameter values ​​of the charging parameters continue to meet the charging abnormality conditions within the preset time, it is determined that the vehicle's battery is at risk of over-discharge;

[0014] The setting of the preset time is related to the SOC value of the battery of the vehicle.

[0015] In some possible embodiments, the setting of the preset time is related to the SOC value of the battery of the vehicle and includes:

[0016] When the SOC value of the battery of the vehicle is within a first preset range, the preset time is set to a first preset time;

[0017] When the SOC value of the battery of the vehicle is within a second preset range, the preset time is set to the second preset time;

[0018] The value of the first preset time is the same as or different from the value of the second preset time.

[0019] In some possible embodiments, the abnormal charging conditions include:

[0020] The parameter value of the charging parameter satisfies at least one of the following conditions:

[0021] The CP duty cycle is in the third preset range,

[0022] The AC charging voltage is within a fourth preset range,

[0023] The deviation of the AC charging current from the maximum allowable AC charging current is within a fifth preset range,

[0024] The AC charging current is within a sixth preset range.

[0025] In some possible embodiments, actively ending charging includes:

[0026] Charging ends when the timing time is reached.

[0027] In some possible embodiments,

[0028] When the SOC value of the battery of the vehicle is within the first preset range, the timing time is set to a third preset value;

[0029] When the SOC value of the battery of the vehicle is within the second preset range, the timing time is set to a fourth preset value;

[0030] The third preset value is the same as or different from the fourth preset value.

[0031] In some possible embodiments, notifying the user of the charging abnormality includes: controlling the vehicle terminal to send a first prompt message, the first prompt message is used to prompt the user of the charging abnormality; and / or, sending charging abnormality information to the mobile terminal so that the mobile terminal reminds the user of the charging abnormality.

[0032] In some possible embodiments, after actively ending charging,

[0033] Control the vehicle computer to send a charging end prompt message; and / or

[0034] Send charging end information to the mobile terminal to inform the user that charging is completed.

[0035] In a second aspect, the present invention provides a charging control device, comprising a processor, the processor being connected to a memory, the memory being used to store a computer program, the processor calling the computer program to execute the method described in the first aspect.

[0036] In a third aspect, the present invention provides a charging system, comprising a battery and the charging control device described in the second aspect, wherein the charging control device controls the battery to be charged.

[0037] In a fourth aspect, the present invention provides a vehicle, comprising the charging control device described in the second aspect, and / or the charging system described in the third aspect.

[0038] In a fifth aspect, the present invention provides a computer storage medium storing a computer program, which, when executed by a processor, implements the method described in the first aspect. BRIEF DESCRIPTION OF THE DRAWINGS

[0039] The above and / or additional aspects and advantages of the present invention will become apparent and easily understood from the description of the embodiments in conjunction with the following drawings, in which:

[0040] Figure 1 is a schematic diagram of a process of a charging control method according to an embodiment of the present application;

[0041] Figure 2 is another schematic diagram of the process of the charging control method according to an embodiment of the present application;

[0042] Figure 3 is another schematic diagram of the process of the charging control method according to an embodiment of the present application;

[0043] Figure 4 is another schematic diagram of the process of the charging control method according to an embodiment of the present application;

[0044] Figure 5 is a schematic diagram of a charging control device according to an embodiment of the present application;

[0045] Figure 6 is a schematic diagram of a charging system according to an embodiment of the present application;

[0046] Figure 7 is a schematic diagram of a vehicle according to an embodiment of the present application;

[0047] Figure 8 is another schematic diagram of a vehicle according to an embodiment of the present application.

[0048] Reference numerals:

[0049] Vehicle power supply equipment 2 ; vehicle 100 ; battery 10 ; charging control device 20 ; charging system 30 ; controller 21 ; BMS 22 ; processor 23 ; memory 24 ; communication component 25 . DETAILED DESCRIPTION

[0050] Embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in the field without making creative work are within the scope of protection of the present application.

[0051] The terms "first", "second", "third", "fourth", etc. (if any) in the specification and claims of the present invention and the above-mentioned drawings are used to distinguish similar objects, and are not necessarily used to describe a specific order or sequence. It should be understood that the data used in this way can be interchanged where appropriate, so that the embodiments described herein can be implemented in an order other than that illustrated or described herein. In addition, the terms "including" and "having" and any variations thereof are intended to cover non-exclusive inclusions, for example, a process, method, system, product or device that includes a series of steps or units is not necessarily limited to those steps or units that are clearly listed, but may include other steps or units that are not clearly listed or inherent to these processes, methods, products or devices.

[0052] The embodiments of the present application are described below in conjunction with the drawings in the embodiments of the present application.

[0053] When the battery is discharged, the stored electric energy is gradually released and the voltage slowly drops. When the voltage drops to a certain specified value, the discharge should be stopped and the battery should be recharged to restore the energy storage state. If the discharge continues below this specified value, the battery is over-discharged. Over-discharge may damage the active material of the electrode, lose the reaction ability, and shorten the battery life. For vehicle use, when the battery of the vehicle is over-discharged, the vehicle will not be able to start, and may even cause property damage.

[0054] See also Figure 1 , according to an exemplary embodiment of the present application, a schematic diagram of a charging control method is shown. The method can be applied to a charging control device to prevent the battery of the vehicle from over-discharging when the vehicle is being charged. The method includes the following steps:

[0055] Step S101: When a vehicle is being charged, it is determined that a battery of the vehicle has an over-discharge risk.

[0056] For example, it can be determined whether the vehicle's battery has an over-discharge risk based on the vehicle's state of charge and the SOC value of the vehicle's battery.

[0057] When the vehicle is charging, the vehicle enters the charging process, and the vehicle's charging-related devices are in working condition. If the charging is abnormal due to various problems such as a malfunction of the on-board charger or the pile, but the interaction is normal, and the charging process is not exited, the battery cannot be charged normally, but the vehicle's charging process is not over, and the vehicle's charging-related devices are still in working condition, consuming battery energy. In other words, the battery is not charged to replenish energy, but is continuously consuming energy. Especially when the vehicle's battery SOC is very low, if the above state continues for a period of time, the vehicle's battery is at risk of over-discharge.

[0058] Step S102: Actively terminate charging or notify the user of charging abnormality.

[0059] After determining that the vehicle's battery is at risk of over-discharge, the charging is terminated proactively or the user is notified of the charging abnormality so that the user knows the vehicle status and ends charging.

[0060] After charging is completed, the vehicle exits the charging process and the vehicle's charging-related devices stop working, thereby effectively reducing the overall energy consumption of the battery, preventing the vehicle's battery from over-discharging, and greatly reducing problems such as the vehicle being unable to start due to over-discharging of the vehicle's battery, avoiding affecting the user's vehicle planning and vehicle experience, and causing unnecessary trouble or even losses to the user.

[0061] In some possible embodiments, it may be determined that the vehicle's battery is at risk of over-discharging based on parameter values ​​of the vehicle's charging parameters and an SOC value of the vehicle's battery.

[0062] In some possible embodiments, if the parameter values ​​of the charging parameters of the vehicle continue to meet the charging abnormality conditions within a preset time, it is determined that the battery of the vehicle is at risk of over-discharge.

[0063] See also Figure 2 According to another schematic diagram of the process of the charging control method shown in an exemplary embodiment of the present application, a method for determining whether a battery of a vehicle has an over-discharge risk includes but is not limited to the following steps:

[0064] Step S201: Determine whether the parameter value of the charging parameter satisfies the condition of abnormal charging.

[0065] In some possible embodiments, the parameter value of the charging parameter is obtained by inspecting the charging parameter. The inspection cycle can be determined according to relevant parameters such as the collection cycle of the vehicle's charging parameters and the inspection processing speed, and can also be set according to different vehicle states, which is not limited here.

[0066] In some possible embodiments, the charging parameters of the vehicle include at least one or more of a CP duty cycle, an AC charging voltage, an AC charging current, and a maximum allowable charging current.

[0067] For example, the charging parameters of the vehicle include the CP duty cycle and the AC charging current; for another example, the charging parameters of the vehicle include the maximum allowable charging current and the AC current. The charging parameters of the vehicle are not limited to the above, and this application does not list all combinations one by one.

[0068] In the related technology, the control polite function (CP) is used to monitor the interaction between the electric vehicle and the electric vehicle power supply device, generally using a pulse width modulation signal (PWM signal) and a communication method with alternating amplitudes. Generally, if the interaction between the electric vehicle and the electric vehicle power supply device is abnormal, the vehicle will directly exit the charging process.

[0069] The CP duty cycle is the duty cycle of the PWM signal obtained by the charging control device, which can confirm whether the charging device is fully connected, the maximum power supply current of the current power supply device, etc.

[0070] In some possible embodiments, the abnormal charging condition includes at least one of the following conditions:

[0071] The CP duty cycle is in the third preset range,

[0072] The AC charging voltage is within a fourth preset range,

[0073] The deviation of the AC charging current from the maximum allowable AC charging current is within a fifth preset range,

[0074] The AC charging current is within a sixth preset range.

[0075] For example, the AC charging current may be judged to be abnormal by the deviation between the AC charging current and the maximum allowable AC charging current being within an abnormal range, and it may be determined that the parameter value of the charging parameter of the vehicle meets the condition of abnormal charging.

[0076] For another example, the CP duty cycle is within the normal range and the AC charging current is within the abnormal range, so it can be judged that the interaction between the vehicle power supply equipment and the vehicle is normal, the AC charging current is abnormal, and the parameter values ​​of the vehicle's charging parameters meet the conditions for abnormal charging.

[0077] The conditions for abnormal charging are not limited to the above-mentioned methods, and this application does not list all combinations one by one.

[0078] See also Figure 3 According to another schematic diagram of the process of the charging control method shown in an exemplary embodiment of the present application, a specific embodiment of determining that the parameter value of the charging parameter meets the condition of abnormal charging includes but is not limited to the following steps:

[0079] When the vehicle is being charged with AC,

[0080] Step S301: determine whether the CP duty cycle is within a third preset range.

[0081] In some possible embodiments, the third preset range is the range of the CP duty cycle in which the vehicle interacts normally with the vehicle power supply device and charging is allowed. For example, the third preset range can be set to 10% to 90% according to the national standard. If it is determined that the CP duty cycle is within the third preset range, the vehicle interacts normally with the vehicle power supply device and charging is allowed.

[0082] In some possible embodiments, the vehicle power supply device is a charging pile.

[0083] Step S302: Is it determined whether the AC charging voltage is within the fourth preset range?

[0084] In some possible embodiments, the fourth preset range is a voltage range in which the vehicle power supply device normally operates. By determining whether the AC charging voltage is within the fourth preset range, it can be confirmed whether the power supply voltage of the vehicle power supply device is normal.

[0085] If it is determined that the AC charging voltage is within the fourth preset range, the vehicle power supply equipment is supplying power normally.

[0086] Step S303: Obtain the value of the maximum allowable charging current.

[0087] Step S304: Determine whether the deviation between the AC charging current and the maximum allowable AC charging current is within a fifth preset range?

[0088] AC charging current refers to the charging current of the power supply circuit after the vehicle is connected to the vehicle power supply equipment;

[0089] In some possible embodiments, under normal charging conditions, the deviation between the AC charging current and the maximum allowable AC charging current will be controlled within a certain range, and the fifth preset range can be set as the abnormal range of the deviation according to relevant factors such as the output error of the on-board charging device. If the deviation between the AC charging current and the maximum allowable AC charging current is within the fifth preset range, it can be understood that the AC charging current is abnormal.

[0090] In some possible embodiments, the fifth preset range may be set in the form of percentage or difference, etc. The specific form may be set according to relevant factors such as the output error of the vehicle-mounted charging device, which are not listed here one by one.

[0091] For example, based on the output error of the vehicle-mounted charging equipment and other related factors, the fifth preset range is set to >20%, and the maximum allowable AC charging current of the vehicle is obtained to be 10A. If the measured AC charging current is 0.5A at this time, the deviation between the AC charging current and the maximum allowable AC charging current is (10-0.5) / 10=95%, which is within the fifth preset range, and it can be determined that the AC charging current is abnormal.

[0092] In some possible embodiments, whether the AC charging current is abnormal may also be determined by judging that the AC charging current is within a sixth preset range.

[0093] In some possible embodiments, the sixth preset range may be a range of abnormal AC charging current determined according to a maximum allowable AC charging current and a deviation between the AC charging current of the vehicle and the maximum allowable AC charging current.

[0094] For example, the maximum allowable AC charging current of the vehicle is 10A. According to relevant factors such as the output error of the on-board charging device, the deviation between the AC charging current of the vehicle and the maximum allowable AC charging current is within 20%, and the sixth preset range can be set to <8A.

[0095] It can be understood that in some possible embodiments, the vehicle interacts normally with the vehicle power supply equipment and charging is allowed, and the AC charging voltage is normal. If the AC charging current is abnormal, it can be determined that the parameter values ​​of the vehicle's charging parameters meet the conditions for abnormal charging.

[0096] In some possible embodiments, if the vehicle has a scheduled charging function, it is also necessary to determine whether it is in the scheduled charging state. In the scheduled charging state, the vehicle has not started charging, and it is impossible to determine whether the parameter values ​​of the vehicle's charging parameters meet the conditions of abnormal charging. It is necessary to determine whether the parameter values ​​of the vehicle's charging parameters meet the conditions of abnormal charging after charging starts.

[0097] Optionally, step S202: if the SOC value of the battery of the vehicle is within a first preset range, set a first preset time.

[0098] In some possible embodiments, it is determined that the SOC value of the battery of the vehicle is within a first preset range. For example, the first preset range may be set to ≤5%. If the SOC value of the battery is ≤5%, a first preset time T1 is set.

[0099] Step S203: Determine whether the parameter values ​​of the vehicle's charging parameters continue to meet the condition of abnormal charging within the first preset time and the SOC value of the battery is within the first preset range?

[0100] It is determined whether the charging parameters of the vehicle continue to meet the charging abnormality condition within the first preset time, and whether the SOC value of the battery continues to be within the first preset range. If not, it is further determined whether the parameter value of the charging parameter meets the charging abnormality condition.

[0101] Optionally, step S204: if the SOC value of the battery of the vehicle is within a second preset range, set a second preset time.

[0102] In some possible embodiments, it is determined that the SOC value of the battery of the vehicle is within a second preset range. For example, the first preset range may be set to >5%. If the SOC value of the battery is >5%, a second preset time T2 is set.

[0103] Optionally, step S205: determine whether the parameter values ​​of the vehicle's charging parameters continue to meet the charging abnormality condition within the second preset time and the battery SOC value is within the second preset range?

[0104] Determine whether the parameter value of the vehicle's charging parameter continues to meet the condition of abnormal charging within the second preset time, and whether the SOC value of the battery continues to be within the second preset range. If not, continue to determine whether the parameter value of the charging parameter meets the condition of abnormal charging.

[0105] Step S206: Determine if the vehicle's battery is at risk of over-discharge

[0106] If the parameter values ​​of the vehicle's charging parameters continue to meet the charging abnormality conditions within a preset time, it is determined that the vehicle's battery is at risk of over-discharge.

[0107] In some possible embodiments,

[0108] When the SOC value of the battery of the vehicle is within a first preset range, the preset time may be set to a first preset time;

[0109] When the SOC value of the battery of the vehicle is within a second preset range, the preset time may be set to the second preset time;

[0110] The value of the first preset time is the same as or different from the value of the second preset time.

[0111] In some possible embodiments, if the first preset range is smaller than the second preset range, the value of the first preset time is also smaller than the value of the second preset time.

[0112] For example, the first preset range is set to ≤5%, and the second preset range is set to >5%; when the SOC value of the battery is ≤5%, the first preset time is set to 30 minutes, and when the SOC value of the battery is >5%, the second preset time is set to 4 hours. It can be understood that when the vehicle is charging abnormally, the lower the SOC value of the vehicle's battery, the higher the risk of over-discharge of the vehicle's battery, and the shorter the time to maintain the discharge state and avoid over-discharge of the battery.

[0113] When it is detected that the parameter value of the vehicle's charging parameter meets the condition of abnormal charging and the battery SOC value is ≤5%, within 30 minutes, if the parameter value of the vehicle's charging parameter continues to meet the condition of abnormal charging and the battery SOC value is ≤5%, it is determined that the vehicle's battery is at risk of over-discharge;

[0114] When it is detected that the parameter values ​​of the vehicle's charging parameters meet the conditions for abnormal charging and the battery's SOC value is greater than 5%, within 4 hours, it is continuously detected that the parameter values ​​of the vehicle's charging parameters meet the conditions for abnormal charging and the battery's SOC value is greater than 5%, then it is determined that the vehicle's battery is at risk of over-discharge.

[0115] It can be understood that if it is detected that the parameter values ​​of the vehicle's charging parameters meet the conditions of abnormal charging, the battery SOC value is greater than 5%, and the battery SOC value drops to ≤5% before 4 hours, the preset time is reset to 30 minutes. If it is continuously detected that the parameter values ​​of the vehicle's charging parameters meet the conditions of abnormal charging and the battery SOC value is ≤5% within 30 minutes, it is determined that the vehicle's battery is at risk of over-discharge.

[0116] It is not necessary to list all possible implementation scenarios here.

[0117] Combine the following Figure 4 According to another schematic diagram of the process of the charging control method shown in a specific embodiment of the present application, in some possible embodiments, after determining that the battery of the vehicle is at risk of over-discharge, the method of actively ending charging or notifying the user of charging abnormality is explained. Including but not limited to the following steps:

[0118] After determining that the vehicle's battery is at risk of over-discharge,

[0119] Step S401: Start timing, preset the timing time, and notify the user of charging abnormality.

[0120] In some possible embodiments, actively ending charging includes: ending charging after a timing time has expired.

[0121] In some possible embodiments, different timing times can be set according to the SOC value range of the vehicle's battery. For example, when the SOC value of the battery is ≤5%, the timing time can be set to 3 minutes, and when the SOC value of the battery is >5%, the timing time can be set to 30 minutes.

[0122] In some possible embodiments, notifying the user of the charging abnormality includes: controlling the vehicle terminal to send a prompt message to prompt the user of the charging abnormality; sending charging abnormality information to the mobile terminal so that the mobile terminal reminds the user of the charging abnormality.

[0123] For example, the vehicle computer can be controlled to emit a prompt sound and display a "charging abnormality" reminder; another example is to send vehicle abnormality information through a mobile terminal. When the battery SOC value is low, the vehicle discharge risk can be prompted, such as "the vehicle is charging abnormally, your vehicle battery is low, to avoid affecting use, it is recommended to end charging", and various audio-visual prompts can be used to prompt users of vehicle charging abnormalities, which are not listed here one by one.

[0124] Optionally, step S402: determine whether a user instruction to end charging is received?

[0125] After notifying the user of the charging abnormality, the user receives a prompt message and may issue an end-charging instruction through the vehicle computer or mobile terminal. If the user's end-charging instruction is received, charging will be terminated directly; if the user's end-charging instruction is not received, charging will be terminated after the timing time is reached.

[0126] Optionally, step S403: determine whether the preset timing time has been reached.

[0127] If the user's instruction to end charging is not received, it is determined whether the time has been reached. If the preset time has been reached, step S404 is executed to end charging; if the preset time has not been reached, the timing is continued until the preset time has been reached.

[0128] In some possible embodiments, if the vehicle charging returns to normal within the timing time, the process is exited.

[0129] Step S404: Execute the end charging operation.

[0130] The execution of the end charging operation includes exiting the charging process and stopping the charging-related devices of the vehicle. It can be understood that the energy consumption of the battery of the vehicle is greatly reduced after the charging is ended, effectively preventing the battery from being over-discharged due to excessive consumption of battery energy.

[0131] Optionally, step S405: notify the user that charging is completed.

[0132] Notifying the user of the end of charging includes: controlling the vehicle computer to send a prompt message to remind the user that charging is over; sending charging end information to the mobile terminal so that the mobile terminal reminds the user that charging is over.

[0133] Figure 5 is a schematic diagram of a charging control device according to an exemplary embodiment of the present application. The charging control device 20 includes a processor 23, which may be one or more. The processor 23 may be configured to execute a related computer program so that the charging control device 20 performs the above-mentioned charging control method.

[0134] In some possible embodiments, the charging control device 20 further includes a memory 24 for storing a computer program executable by the processor 23. The computer program stored in the memory 24 may include one or more modules, each corresponding to a set of instructions.

[0135] In addition, the charging control device 20 may further include a communication component 25 , which may be configured to implement a communication function of the charging control device 20 , such as wired or wireless communication.

[0136] Figure 6 is a schematic diagram of a charging system according to an exemplary embodiment of the present application. The charging system 30 includes the charging control device 20 and a battery 10. The charging control device 20 executes the charging control method to charge the battery 10.

[0137] Figure 7 1 is a schematic diagram of a vehicle according to an exemplary embodiment of the present application. The vehicle 100 can be a pure electric vehicle or a hybrid vehicle. The vehicle 100 includes a charging control device 20 and a battery 10. The vehicle control device 20 is electrically connected to the battery 10. The vehicle control device 20 executes a corresponding charging control program to make the charging-related units work and charge the battery 10. The vehicle control device 20 is electrically connected to the vehicle power supply device 2, and the vehicle control device 20 detects and obtains the charging parameters of the vehicle 100.

[0138] See also Figure 8 , according to another schematic diagram of a vehicle shown in an exemplary embodiment of the present application, in some possible embodiments, the charging control device 20 may include one or more controllers with processing capabilities, for example, the charging control device 20 includes a controller 21 and a BMS 22.

[0139] In another exemplary embodiment, a non-volatile computer storage medium including program instructions is also provided, and the program instructions implement the above-mentioned charging control method when executed by the processor 23. For example, the non-volatile computer storage medium can be the above-mentioned memory 24 including program instructions, and the above-mentioned program instructions can be executed by the processor 23 of the charging control device 20 to complete the above-mentioned charging method.

[0140] The preferred embodiments of the present disclosure are described in detail above in conjunction with the accompanying drawings; however, the present disclosure is not limited to the specific details in the above embodiments. Within the technical concept of the present disclosure, a variety of simple modifications can be made to the technical solution of the present disclosure, and these simple modifications all fall within the protection scope of the present disclosure.

[0141] In the several embodiments provided in the present application, it should be understood that the disclosed systems, devices and methods can be implemented in other ways. For example, the device embodiments described above are only schematic. For example, the division of the units is only a logical function division. There may be other division methods in actual implementation, such as multiple units or components can be combined or integrated into another system, or some features can be ignored or not executed. Another point is that the mutual coupling or direct coupling or communication connection shown or discussed can be an indirect coupling or communication connection through some interfaces, devices or units, which can be electrical, mechanical or other forms.

[0142] As described above, the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit the same. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that the technical solutions described in the aforementioned embodiments may still be modified, or some of the technical features thereof may be replaced by equivalents. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A charging control method for a vehicle, characterized in that: The charging control method comprises: When the vehicle is being charged, if it is determined that the battery of the vehicle is at risk of over-discharge, the charging is actively terminated and / or the user is notified of the charging abnormality.

2. The method according to claim 1, characterized in that The charging control method further includes: According to the parameter value of the charging parameter of the vehicle and the SOC value of the battery of the vehicle, it is determined that there is an over-discharge risk in the battery of the vehicle.

3. According to claim 2, it is characterized in that: The parameter value of the charging parameter is obtained by inspecting the charging parameter.

4. The method according to claim 2, characterized in that: The charging parameters of the vehicle include at least one or more of a CP duty cycle, an AC charging voltage, an AC charging current, and a maximum allowed AC charging current.

5. The method according to claim 2, characterized in that: Determining whether the battery of the vehicle has an over-discharge risk according to the parameter value of the charging parameter of the vehicle and the SOC value of the battery of the vehicle includes: If the parameter value of the charging parameter continues to meet the condition of abnormal charging within the preset time, it is determined that the battery of the vehicle has an over-discharge risk; The setting of the preset time is related to the SOC value of the battery of the vehicle.

6. The method according to claim 5, characterized in that The setting of the preset time is related to the SOC value of the battery of the vehicle and includes: When the SOC value of the battery of the vehicle is within a first preset range, the preset time is set to a first preset time; When the SOC value of the battery of the vehicle is within a second preset range, the preset time is set to the second preset time; The value of the first preset time is the same as or different from the value of the second preset time.

7. The method according to claim 5, characterized in that The abnormal charging conditions include: The parameter value of the charging parameter satisfies at least one of the following conditions: The CP duty cycle is in the third preset range, The AC charging voltage is within a fourth preset range, The deviation of the AC charging current from the maximum allowable AC charging current is within a fifth preset range, The AC charging current is within a sixth preset range.

8. The method according to claim 1, characterized in that The active termination of charging comprises: Charging ends when the timing time is reached.

9. The method according to claim 8, characterized in that When the SOC value of the battery of the vehicle is within a first preset range, the timing time is set to a third preset value; When the SOC value of the battery of the vehicle is within the second preset range, the timing time is set to a fourth preset value; The third preset value is the same as or different from the fourth preset value.

10. The method according to claim 1, characterized in that The notifying the user of the charging abnormality includes: controlling the vehicle terminal to send a first prompt message, wherein the first prompt message is used to prompt the user of the charging abnormality; and / or sending charging abnormality information to the mobile terminal so that the mobile terminal reminds the user of the charging abnormality.

11. The method according to claim 1, characterized in that: After actively ending the charging, the method further includes: Control the vehicle computer to send a charging end prompt message; and / or Send charging end information to the mobile terminal to inform the user that charging is completed.

12. A charging control device, characterized in that: The charging control device includes a processor, the processor is connected to a memory, the memory is used to store a computer program, and the processor calls the computer program to execute the method according to any one of claims 1-11.

13. A charging system, characterized in that: The charging system includes a battery and the charging control device according to claim 12, and the charging control device controls the battery to be charged.

14. A vehicle, characterized in that: The vehicle includes the charging control device according to claim 12 and / or the charging system according to claim 13.

15. A computer storage medium, characterized in that The computer storage medium stores a computer program, and when the computer program is executed by a processor, the method according to any one of claims 1 to 11 is implemented.

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