Remaining power threshold determination method and apparatus, storage medium, and vehicle

Abstract

A remaining power threshold determination method and apparatus, a storage medium, and a vehicle, relating to the technical field of vehicles. The method comprises: acquiring basic working condition information and correction working condition information of a vehicle; on the basis of the basic working condition information, determining a basic remaining power threshold of a power battery; and on the basis of the correction working condition information, correcting the basic remaining power threshold to obtain a target remaining power threshold. By comprehensively considering various types of working condition information of the vehicle, an appropriate basic remaining power threshold can be determined on the basis of the basic working condition information, and the basic remaining power threshold can also be dynamically corrected on the basis of the correction working condition information, so that the target remaining power threshold can be dynamically adjusted, to start an engine at more appropriate timing. In this way, the target remaining power threshold can be effectively adapted to complex and variable working conditions of the vehicle, and the driving performance of the vehicle under various working conditions can be improved while avoiding the failure of the vehicle, thereby effectively improving the user experience.

Description

A remaining power threshold determination method, device, storage medium and vehicle

[0001] Cross-reference to Related Applications

[0002] This application claims priority to Chinese Patent Application No. 2024107394968, filed on June 7, 2024, entitled "A Remaining Power Threshold Determination Method, Storage Medium and Vehicle", the entire contents of which are incorporated herein by reference. TECHNICAL FIELD

[0003] The present disclosure relates to the technical field of vehicles, and in particular, to a remaining power threshold determination method, device, storage medium and vehicle.

[0004] BACKGROUND

[0005] Hybrid vehicles are one of the mainstream directions of the current vehicle industry. By increasing a hybrid power system, traditional fuel power and electric power are combined, which can better improve vehicle performance and reduce fuel consumption. Hybrid vehicles can realize pure electric driving, pure oil driving and dual-power hybrid driving, and can also timely convert the driving mode of the vehicle according to external conditions.

[0006] In order to determine the starting time of the engine and avoid power battery depletion, a remaining power threshold is usually set for the power battery, so that if the remaining power of the power battery is detected to be lower than the remaining power threshold during pure electric driving, the engine can be automatically started to drive the vehicle to travel.

[0007] However, the current setting of the remaining power threshold is relatively simple, usually using a fixed threshold, which cannot effectively adapt to the complex and variable working conditions of the vehicle, affecting the performance of the vehicle and easily leading to vehicle failure. SUMMARY

[0008] The present disclosure provides a remaining power threshold determination method, device, storage medium and vehicle to solve the problem that the current remaining power threshold for starting the engine is simple and cannot effectively adapt to the complex and variable working conditions of the vehicle.

[0009] To solve the above problems, the present disclosure adopts the following technical solutions:

[0010] In a first aspect, the present disclosure provides a remaining power threshold determination method, which comprises:

[0011] obtaining basic working condition information and corrected working condition information of a vehicle;

[0012] determining a basic remaining power threshold of a power battery based on the basic working condition information;

[0013] The threshold value correction module is configured to correct the basic residual power threshold value based on the correction working condition information, to obtain a target residual power threshold value; the target residual power threshold value is used to indicate that the engine of the vehicle is started in a case where the current residual power of the power battery is lower than the target residual power threshold value.

[0014] In a second aspect, based on the same inventive concept, the embodiments of the present disclosure provide a residual power threshold value determination method and device, the device comprising:

[0015] An information acquisition module is configured to acquire basic working condition information and correction working condition information of a vehicle.

[0016] A threshold value determination module is configured to determine a basic residual power threshold value of a power battery based on the basic working condition information.

[0017] A threshold value correction module is configured to correct the basic residual power threshold value based on the correction working condition information, to obtain a target residual power threshold value; the target residual power threshold value is used to indicate that the engine of the vehicle is started in a case where the current residual power of the power battery is lower than the target residual power threshold value.

[0018] In a third aspect, based on the same inventive concept, the embodiments of the present disclosure provide a computer-readable storage medium having an executable program stored thereon, the executable program being executed by a processor to implement the residual power threshold value determination method proposed in the first aspect of the present disclosure.

[0019] In a fourth aspect, based on the same inventive concept, the embodiments of the present disclosure provide a vehicle comprising:

[0020] A memory is configured to store an executable program.

[0021] A processor.

[0022] When the executable program is executed by the processor, the residual power threshold value determination method proposed in the first aspect of the present disclosure is implemented.

[0023] Compared with the prior art, the present disclosure has the following advantages:

[0024] The method for determining the residual power threshold provided by the embodiment of the present disclosure first acquires the basic working condition information and the correction working condition information of the vehicle, then determines the basic residual power threshold of the power battery based on the basic working condition information, and finally corrects the basic residual power threshold based on the correction working condition information to obtain the target residual power threshold, which is used to indicate that the engine of the vehicle is started in the case that the current residual power of the power battery is lower than the target residual power threshold. The embodiment of the present disclosure can not only determine the appropriate basic residual power threshold according to the basic working condition information, but also dynamically correct the basic residual power threshold according to the correction working condition information, and then dynamically adjust the target residual power threshold, so that the engine can be started at a more appropriate time. In this way, the target residual power threshold can effectively adapt to the complex and changeable working conditions of the vehicle, avoid the failure of the vehicle, improve the driving performance of the vehicle under various working conditions, and effectively improve the user experience.

[0025] BRIEF DESCRIPTION OF DRAWINGS

[0026] 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 the prior art description. Obviously, the drawings in the following description are only some embodiments of the present application, and other drawings can be obtained by those skilled in the art without creative labor. FIG. 1 is a step flow chart of a method for determining a residual power threshold in an embodiment of the present disclosure.

[0027] FIG. 2 is a functional module schematic diagram of a method for determining a residual power threshold in an embodiment of the present disclosure.

[0028] FIG. 3 is a structural schematic diagram of a vehicle in an embodiment of the present disclosure.

[0029] Implementation of the present application

[0030] The technical solutions in the embodiments of the present disclosure will be described clearly and completely in combination with the drawings in the embodiments of the present application. Obviously, the described embodiments are only some of the embodiments of the present application, not all. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor are within the scope of protection of the present application.

[0031] During the driving process of the vehicle, changes in the external environment and changes in the driving state of the vehicle will cause the vehicle to face different working conditions. For example, the vehicle has different requirements for the remaining power threshold of the power battery under different environmental temperatures, different vehicle speeds, and / or different battery temperatures. If a fixed threshold is used, it will be difficult to effectively adapt to the complex and variable working conditions of the vehicle. For example, a certain fixed threshold can meet the engine start-up requirements of the vehicle under normal temperature conditions. When the vehicle drives into a low-temperature environment, the power generation performance of the power battery is limited, and if the remaining power threshold remains unchanged, the driving performance of the vehicle will deteriorate, and vehicle failure will easily occur. Alternatively, a certain fixed threshold can meet the engine start-up requirements when the user has a regular power demand. When the user has a strong power demand, if the remaining power threshold is set too low, the power of the vehicle will be weak, affecting the user experience, and the risk of power battery depletion will be faced.

[0032] In view of the problem that the current remaining power threshold for starting the engine is simple and cannot effectively adapt to the complex and variable working conditions of the vehicle. The present disclosure aims to provide a remaining power threshold determination method, which can not only determine a suitable basic remaining power threshold according to basic working condition information, but also dynamically correct the basic remaining power threshold according to correction working condition information, thereby realizing dynamic adjustment of the target remaining power threshold, so that the engine can be started at a more appropriate time. In this way, the target remaining power threshold can effectively adapt to the complex and variable working conditions of the vehicle, while avoiding vehicle failure, improving the driving performance of the vehicle under various working conditions, and effectively improving the user experience.

[0033] Referring to FIG. 1, a remaining power threshold determination method of the present disclosure is shown, which can include the following steps:

[0034] S101: Obtain the basic working condition information and the correction working condition information of the vehicle.

[0035] The present embodiment is applied to a hybrid vehicle equipped with an engine and a power battery at the same time. The hybrid vehicle can be a HEV (Hybrid Electric Vehicle) or a PHEV (Plug-in hybrid electric vehicle).

[0036] The execution subject of the embodiment can be a computing service device with data processing, network communication and program running functions, or an electronic device with the above functions such as a car computer, a vehicle-mounted computer, etc., such as an ECU (Electronic Control Unit), a BCM (Body Control Module) and an HCU (Hybrid Control Unit), etc. The present embodiment will be described with the HCU as the execution subject, and the present embodiment does not specifically limit the type of hybrid vehicle and execution subject.

[0037] In the present embodiment, the HCU can obtain the basic working condition information and the correction working condition information of the vehicle according to the corresponding data acquisition period after the vehicle is started, and further can realize dynamic adjustment of the target residual capacity threshold after detecting that any of the basic working condition information and the correction working condition information is sent to change.

[0038] The basic working condition information and the correction working condition information are both working condition information in the process of vehicle running, and the basic working condition information and the correction working condition information specifically include respective corresponding vehicle environmental information and driving state information, wherein the basic working condition information is used to determine the basic residual capacity threshold, and the correction working condition information is information used to correct the basic residual capacity threshold.

[0039] S102: Determine the basic residual capacity threshold of the power battery based on the basic working condition information.

[0040] In the present embodiment, the basic working condition information represents one or more working condition information with relatively high relevance to the target residual capacity threshold. Therefore, after the HCU obtains the basic working condition information, the HCU can calculate the basic residual capacity threshold that can meet the demand of the conventional working condition according to the basic working condition information.

[0041] S103: Correct the basic residual capacity threshold based on the correction working condition information to obtain the target residual capacity threshold.

[0042] The basic residual capacity threshold can meet the engine starting demand under the conventional working condition, but can not meet the actual working condition of the vehicle, therefore, the HCU will further correct the basic residual capacity threshold according to the correction working condition information to obtain the target residual capacity threshold that can meet the current actual working condition.

[0043] The target residual power threshold is used to indicate that the engine of the vehicle is started when the current residual power of the power battery is lower than the target residual power threshold. That is, the HCU determines the target residual power threshold, and monitors the current residual power of the power battery in real time, and then controls the engine to start to drive the vehicle when it is determined that the current residual power is lower than the target residual power threshold, and the power battery can be charged according to actual needs to avoid power loss of the power battery.

[0044] In the embodiment, the correction working condition information represents one or more working condition information related to the target residual power threshold, and the correction working condition information can directly or indirectly affect the target residual power threshold. Therefore, the HCU adjusts the target residual power threshold by correcting the basic residual power threshold in real time according to the correction working condition information, so that the target residual power threshold is dynamically adapted to the actual working condition of the vehicle.

[0045] The residual power threshold determination method provided in the embodiment can comprehensively consider various working condition information of the vehicle. On the one hand, the basic residual power threshold can be adjusted in real time according to the basic working condition information; on the other hand, the basic residual power threshold can be dynamically corrected according to the correction working condition information, so as to dynamically adjust the target residual power threshold, so that the engine can be started at a more appropriate time. In this way, when the vehicle faces complex and variable working conditions, the target residual power threshold can also change with the change of the working condition, thereby effectively improving the driving performance of the vehicle in various working conditions, and ensuring the use safety of the vehicle and prolonging the service life of the power battery by starting the engine in time.

[0046] In a feasible embodiment, the basic working condition information includes the current vehicle speed, the current environment temperature and the current battery temperature of the power battery; S102 can specifically include the following sub-steps:

[0047] S102-1: determining a target environment temperature based on the current environment temperature and a plurality of preset temperature intervals.

[0048] In the embodiment, when the vehicle is in a low-temperature working condition and the current environment temperature fluctuates greatly, if the basic residual power threshold is directly calculated according to the current environment temperature, the basic residual power threshold may fluctuate greatly and not have good stability. Therefore, the HCU will set a plurality of temperature intervals to filter the current environment temperature to obtain a target environment temperature with stability. That is, if the current environment temperature fluctuates only in a certain temperature interval, it is considered that the environment temperature does not change, and the target environment temperature is kept unchanged.

[0049] In a specific implementation, S102-1 can specifically include the following sub-steps:

[0050] S102-1-1: Determine the current environment staging temperature based on the current environment temperature and the preset plurality of temperature intervals.

[0051] In the embodiment, the plurality of temperature intervals can be set as adjacent temperature intervals, i.e., the lower limit value of the current temperature interval is the upper limit value of the next temperature interval.

[0052] For example, six adjacent temperature intervals of the form of front-closed and rear-open can be obtained according to -35℃, -30℃, -25℃, -20℃, -15℃, -10℃ and 0℃, i.e., [-35℃, -30℃), [-30℃, -25℃), [-25℃, -20℃), [-20℃, -15℃), [-15℃, -10℃) and [-10℃, 0℃). According to actual requirements, the temperature intervals can also be in the form of front-open and rear-closed, and the specific form of the temperature intervals is not limited.

[0053] In a specific implementation, in a case where the current environment temperature is lower than the lowest temperature in the plurality of temperature intervals, the lowest temperature is determined as the current environment staging temperature.

[0054] In the embodiment, taking the above temperature intervals as an example, the lowest temperature is -35℃, and in a case where the current environment temperature < -35℃, the current environment staging temperature is determined as -35℃.

[0055] In a specific implementation, in a case where the current environment temperature is higher than the highest temperature in the plurality of temperature intervals, the current environment temperature is determined as the current environment staging temperature.

[0056] In the embodiment, taking the above temperature intervals as an example, the highest temperature is 0℃, and in a case where the current environment temperature > 0℃, the actual temperature is output, i.e., the current environment staging temperature is determined as the current environment temperature. Since the current environment temperature is higher than the highest temperature in the plurality of temperature intervals, it is indicated that the vehicle is not in a low-temperature environment, and the power battery is less affected by temperature, and therefore, the current environment temperature can be directly used for calculation.

[0057] In a specific implementation, in a case where the current environment temperature is between the lowest temperature and the highest temperature, a target temperature interval in which the current environment temperature is located is determined from the plurality of temperature intervals, and in a case where the current environment temperature is in an upward trend, the lower limit value of the target temperature interval is determined as the current environment staging temperature; in a case where the current environment temperature is in a downward trend, the upper limit value of the target temperature interval is determined as the current environment staging temperature.

[0058] In the embodiment, the current environment temperature is -35℃ when the current environment temperature is lower than -35℃, the current environment temperature is -30℃ when the current environment temperature is in an upward trend and the current environment temperature is higher than -30℃, and the current environment temperature is kept at -35℃ otherwise; the current environment temperature is -30℃ when the current environment temperature is in a downward trend and the current environment temperature is lower than -30℃, the current environment temperature is kept at -30℃ when the current environment temperature is in a downward trend and the current environment temperature is higher than -30℃, and the current environment temperature is kept at -35℃ when the current environment temperature is lower than -35℃.

[0059] The current environment temperature is in an upward trend or in a downward trend can be determined according to the environment temperature collected in a plurality of continuous collection periods.

[0060] In the embodiment, a plurality of temperature intervals are set, and the current environment temperature is considered to be unchanged when the current environment temperature fluctuates in a certain temperature interval, so that the target environment temperature is kept unchanged. In this way, the instability of the basic residual power threshold obtained according to the target environment temperature caused by the large fluctuation of the environment temperature in a low-temperature environment can be effectively avoided.

[0061] S102-1-2: Obtain a last historical environment sub-stage temperature of the current environment sub-stage temperature.

[0062] In the embodiment, it is considered that the current environment temperature may jump from one temperature interval to another temperature interval in a low-temperature environment, for example, the vehicle drives from a cold outdoor to an indoor with a higher temperature, and the output target environment temperature will change greatly. Therefore, to avoid the mutation of the target environment temperature, the HCU will obtain a last historical environment sub-stage temperature after determining the current environment sub-stage temperature, and then control the target environment temperature to change according to a certain temperature change gradient.

[0063] The current environment temperature represents the environment sub-stage temperature determined in the current calculation period, and the last historical environment sub-stage temperature represents the environment sub-stage temperature determined in the last calculation period of the current calculation period.

[0064] S102-1-3: Determine the target environment temperature based on the historical environment sub-stage temperature and a preset temperature change gradient, so that the target environment temperature gradually reaches the current environment sub-stage temperature from the historical environment sub-stage temperature.

[0065] The temperature change gradient represents the change amount of the temperature per unit time. For example, it can be set to 1℃ / s, that is, 1℃ per second.

[0066] Specifically, the target environment temperature can be determined according to the following formula: T1=T0+a×t (1).

[0067] Wherein, T1 represents the target environment temperature, T0 represents the historical environment sub-stage temperature, a represents the temperature change gradient, and t represents the time.

[0068] In a case where the current ambient staging temperature is greater than the historical ambient staging temperature, the temperature change gradient takes a positive value to gradually increase the target ambient temperature from the historical ambient staging temperature to the current ambient staging temperature; in a case where the current ambient staging temperature is less than the historical ambient staging temperature, the temperature change gradient takes a negative value to gradually decrease the target ambient temperature from the historical ambient staging temperature to the current ambient staging temperature.

[0069] In an example, when the vehicle travels outdoors at -15°C, the ambient staging temperature is maintained at -15°C, and the target ambient temperature is -15°C. When the vehicle travels indoors at 10°C or other areas with higher temperature, the current ambient staging temperature is updated to 10°C. If 10°C is directly determined as the target ambient temperature, the target ambient temperature will be updated from -15°C to 10°C, which will cause a sudden change in the target ambient temperature, resulting in a sudden change in the basic residual capacity threshold, and further causing an error action of the engine. Therefore, the HCU will control the target ambient temperature to gradually increase from -15°C to 10°C according to the temperature change gradient of 1°C / s.

[0070] S102-2: Determine the basic residual capacity threshold based on the current vehicle speed, the target ambient temperature, and the current battery temperature.

[0071] In the embodiment, since the current vehicle speed, the target ambient temperature, and the current battery temperature are all parameters closely related to the residual capacity threshold, the HCU can accurately calculate the basic residual capacity threshold according to the above basic operating condition information.

[0072] In a specific implementation, S102-2 can specifically include the following sub-steps:

[0073] S102-2-1: Determine a first residual capacity threshold based on the current vehicle speed and the target ambient temperature.

[0074] In the embodiment, the HCU pre-stores a first threshold setting table, which represents a comparison relationship between the current vehicle speed, the target ambient temperature, and the first residual capacity threshold. Therefore, the HCU can determine the corresponding first residual capacity threshold according to the current vehicle speed, the target ambient temperature, and the first threshold setting table.

[0075] S102-2-2: Determine a second residual capacity threshold based on the current vehicle speed and the current battery temperature.

[0076] In the embodiment, the HCU pre-stores a second threshold setting table, which represents a comparison relationship between the current vehicle speed, the current battery temperature, and the second residual capacity threshold. Therefore, the HCU can determine the corresponding second residual capacity threshold according to the current vehicle speed, the current battery temperature, and the second threshold setting table.

[0077] S102-2-3: determining the larger value of the first residual capacity threshold and the second residual capacity threshold as the basic residual capacity threshold.

[0078] In the embodiment, by performing the maximum operation on the first residual capacity threshold and the second residual capacity threshold, the basic residual capacity threshold can adapt to multiple basic working conditions.

[0079] For example, in the low-temperature environment working condition, if the first residual capacity threshold is determined to be 20% according to the current vehicle speed and the target environment temperature, it means that the power battery is allowed to be reduced to 20% at most in the low-temperature environment working condition; in the high-temperature battery working condition, if the second residual capacity threshold is determined to be 25% according to the current vehicle speed and the current battery temperature, it means that the power battery is allowed to be reduced to 25% at most in the high-temperature battery working condition. If a value lower than 25% is used as the basic residual capacity threshold, although the use requirement of the low-temperature environment working condition can be met, the use requirement of the high-temperature battery working condition cannot be met, and therefore the basic residual capacity threshold is determined to be 25%.

[0080] In the embodiment, by comprehensively considering the current vehicle speed, the target environment temperature and the current battery temperature, a suitable basic residual capacity threshold can be determined.

[0081] In a feasible embodiment, the correction working condition information includes basic correction information and battery correction information; S103 can specifically include the following sub-steps:

[0082] S103-1: in the case where it is determined that the vehicle meets the preset battery correction condition, correcting the basic residual capacity threshold based on the basic correction information and the battery correction information to obtain a target residual capacity threshold.

[0083] The basic correction information is correction information common to the vehicle, and the battery correction information is correction information for a specific battery type and / or a specific hybrid system type. That is, the basic correction information is mandatory correction information that needs to be used for each correction, and the battery correction information is optional correction information for a specific vehicle.

[0084] In a specific implementation, in the case where the battery type of the power battery is a target battery type and / or the hybrid system type of the vehicle is a target system type, it is determined that the vehicle meets the battery correction condition; in the case where the battery type of the power battery is not the target battery type and the hybrid system type of the vehicle is not the target system type, it is determined that the vehicle does not meet the battery correction condition.

[0085] In the embodiment, considering that currently the hybrid vehicle is generally an HEV, and generally uses a ternary lithium battery as the power battery of the vehicle, the target battery type can be set as a lithium iron phosphate battery, and the target system type can be set as a PHEV. In this way, for the lithium iron phosphate battery with large battery performance difference and the PHEV with large power demand difference, the battery correction information is separately set to correct the basic residual capacity threshold to obtain the hybrid vehicle using the lithium iron phosphate battery and / or the PHEV.

[0086] In the embodiment, when the HCU determines that the vehicle meets the preset battery correction condition, the basic correction information and the battery correction information are comprehensively considered to correct the basic residual capacity threshold.

[0087] S103-2: When it is determined that the vehicle does not meet the battery correction condition, the basic residual capacity threshold is corrected based on the basic correction information to obtain a target residual capacity threshold.

[0088] In the embodiment, when the HCU determines that the vehicle does not meet the battery correction condition, the basic residual capacity threshold can be corrected according to the basic correction information alone.

[0089] In the embodiment, by adding the judgment of the battery correction condition, the correction requirement of the basic residual capacity threshold under different battery types and / or different hybrid system types can be effectively met.

[0090] In one possible implementation, the basic correction information includes gear information and working condition influence information; the step of correcting the basic residual capacity threshold based on the basic correction information to obtain the target residual capacity threshold in S103-2 can specifically include the following sub-steps:

[0091] S103-2-1: Correcting the basic residual capacity threshold based on the working condition influence information to obtain a first initial residual capacity threshold.

[0092] In the embodiment, the working condition influence information is working condition information that can change during the driving of the vehicle and has an influence on the target residual capacity threshold. By comprehensively considering the working condition influence information, the first initial residual capacity threshold can be preliminarily obtained.

[0093] Specifically, the working condition influence information can include at least one of first influence sub-information, second influence sub-information, and third influence sub-information; the first influence sub-information includes a current vehicle speed and a current accelerator pedal opening degree, the second influence sub-information includes a current atmospheric pressure, and the third influence sub-information includes a current system mode and a current driving mode.

[0094] In the embodiment, the HCU determines the first correction amount based on the first influence sub-information, and / or determines the second correction amount based on the second influence sub-information, and / or determines the third correction amount based on the third influence sub-information, determines the comprehensive correction amount based on at least one of the first correction amount, the second correction amount and the third correction amount, and determines the first initial remaining electric quantity threshold based on the comprehensive correction amount and the basic remaining electric quantity threshold.

[0095] In a specific implementation, the HCU pre-stores a first threshold correction table, which represents a correspondence relationship between the current vehicle speed and the current accelerator pedal opening degree and the first correction amount. Therefore, the HCU can determine the corresponding first correction amount according to the current vehicle speed and the current accelerator pedal opening degree and the first threshold correction table. The higher the current vehicle speed and the current accelerator pedal opening degree, the higher the power demand of the driver, and the higher the first correction amount.

[0096] In a specific implementation, the HCU pre-stores a second threshold correction table, which represents a correspondence relationship between the current atmospheric pressure and the second correction amount. Therefore, the HCU can determine the corresponding second correction amount according to the current atmospheric pressure and the second threshold correction table. The lower the current atmospheric pressure, the thinner the air, and the weaker the power performance of the engine. In order to ensure the power performance of the vehicle, the power battery needs to provide more power, and therefore, the second correction amount can be set to increase with the increase of the atmospheric pressure.

[0097] In a specific implementation, the HCU pre-stores a third threshold correction table, which represents a correspondence relationship between the current system mode and the current driving mode and the third correction amount. Therefore, the HCU can determine the corresponding third correction amount according to the current system mode and the current driving mode and the third threshold correction table. In different system modes (such as economy mode, normal mode, power mode, etc.) and different current driving modes (such as normal mode, off-road mode, snow mode, sand mode, etc.), users have different power demands, and therefore, by comprehensively considering the current system mode and the current driving mode, different power demands of users can be met in real time.

[0098] S103-2-2: Determine the target correction ratio based on the gear information.

[0099] In the embodiment, it is considered that the vehicle has different demands for the power battery in different use scenarios, such as in the driving state and in the stopping state. Specifically, in the driving state, the power battery needs to drive the vehicle to travel, and therefore, the demand for the power battery is high; while in the stopping state, the power battery does not need to drive the vehicle, and only needs to meet the normal operation of the vehicle components, and therefore, the demand for the power battery is low.

[0100] In the embodiment, the HCU can effectively determine the use scenario of the vehicle through the gear information, and further determine the corresponding target correction ratio.

[0101] In a specific implementation, when the gear information is the neutral gear (i.e., N gear) or the parking gear (i.e., P gear), the preset first correction ratio is determined as the target correction ratio; when the gear information is neither the neutral gear nor the parking gear, the target correction ratio is determined based on the current vehicle speed.

[0102] In a specific implementation, the HCU pre-stores a correction ratio setting table, which represents the correspondence between the current vehicle speed and the target correction ratio. Therefore, the HCU can determine the corresponding target correction ratio according to the current vehicle speed and the correction ratio setting table. It is considered that the faster the current vehicle speed is, the higher the demand for the power battery is, and therefore the target correction ratio can be set smaller.

[0103] When the gear information is neither the neutral gear nor the parking gear, the target correction ratio can be set to be smaller than the first correction ratio. For example, the first correction ratio can be set to 2.5%, when it is determined that the vehicle is in P / N gear, the target correction ratio is 2.5%, and when it is determined that the vehicle is not in P / N gear, the target correction ratio is the calibrated correction ratio according to the current vehicle speed, which decreases with the increase of the current vehicle speed and is all smaller than 2.5%.

[0104] S103-2-3: determining a target residual capacity threshold based on the target correction ratio and the first initial residual capacity threshold.

[0105] The target correction ratio represents the downward amplitude of the first initial residual capacity threshold. For example, when the first initial residual capacity threshold is 20% and the target correction ratio is 2%, the target residual capacity threshold is 20% x (1-2%) = 19.6%.

[0106] In the embodiment, by comprehensively considering various working condition influence information, the first initial residual capacity threshold that meets the current actual working condition can be determined, and the first initial residual capacity threshold is corrected through the gear information, so that the target residual capacity threshold that meets the current vehicle use scenario can be obtained. In this way, the target residual capacity threshold can effectively adapt to different use working conditions and use scenarios of the vehicle.

[0107] In one possible implementation, the basic correction information includes the gear information and the working condition influence information; the step of correcting the basic residual capacity threshold based on the basic correction information and the battery correction information to obtain the target residual capacity threshold in S103-1 can specifically include the following sub-steps:

[0108] S103-1-1: correcting the basic residual capacity threshold based on the working condition influence information to obtain the first initial residual capacity threshold.

[0109] The specific implementation of S103-1-1 refers to the specific implementation of the foregoing S103-2-1, which will not be repeated here.

[0110] S103-1-2: correcting the preset residual capacity threshold based on the battery correction information to obtain a second initial residual capacity threshold.

[0111] In this embodiment, for the lithium iron phosphate battery and / or the PHEV hybrid vehicle, the HCU will correct the preset residual capacity threshold according to the battery correction information to obtain a second initial residual capacity threshold suitable for the above-mentioned type of hybrid vehicle.

[0112] In a specific implementation, since the lithium iron phosphate battery and the PHEV generally allow the power battery to work at a lower residual capacity, the minimum residual capacity threshold in the first threshold setting table and the second threshold setting table can be determined as the preset residual capacity threshold, and then the preset residual capacity threshold is compensated according to the battery correction information to obtain the second initial residual capacity threshold.

[0113] In a specific implementation, the battery correction information includes the current vehicle speed and the current battery temperature of the power battery; and S103-1-2 specifically can include the following sub-steps:

[0114] S103-1-2-1: determining a target battery correction amount based on the current battery temperature, and determining a correction amount change gradient based on the current vehicle speed.

[0115] In this embodiment, the HCU pre-stores a fourth threshold correction table, which represents the corresponding relationship between the current battery temperature and the battery correction amount. Therefore, after obtaining the current battery temperature, the HCU can determine the corresponding target battery correction amount according to the current battery temperature and the fourth threshold correction table.

[0116] In this embodiment, considering that the change of the current battery temperature is usually frequent and the change amplitude can be large, if the preset residual capacity threshold is directly corrected by the target battery correction amount determined according to the current battery temperature, the second initial residual capacity threshold will have a large amplitude mutation, and then the third initial residual capacity threshold can change back and forth between the first initial residual capacity threshold and the second initial residual capacity threshold, therefore, the HCU will set a corresponding correction amount change gradient for the target battery correction amount for filtering processing.

[0117] S103-1-2-2: obtaining a last historical battery correction amount of the target battery correction amount.

[0118] The target battery correction amount represents the battery correction amount determined in the current calculation cycle, and the last historical battery correction amount represents the battery correction amount determined in the last calculation cycle of the current calculation cycle.

[0119] S103-1-2-3: Based on the correction amount change gradient, the current battery correction amount is gradually changed from the historical battery correction amount to the target battery correction amount.

[0120] The correction amount change gradient represents the change amount of the correction amount per unit time. For example, it can be set to (0.5%) / s, that is, the correction amount increases or decreases by 0.5% per second.

[0121] In one example, the target battery correction amount determined based on the current battery temperature is 10%, and the historical battery correction amount determined based on the last historical battery temperature is 12%. Therefore, the current battery correction amount is not immediately updated to 12%, but is gradually decreased from 12% to 10% in four seconds according to the correction amount change gradient of (0.5%) / s.

[0122] S103-1-2-4: Determine a second initial remaining power threshold based on the current battery correction amount and the preset remaining power threshold.

[0123] In this embodiment, the HCU can determine the sum of the current battery correction amount and the preset remaining power threshold as the second initial remaining power threshold. Since the current battery correction amount is a value that gradually changes according to the correction amount change gradient, the second initial remaining power threshold can also change linearly with the change of the current battery correction amount.

[0124] S103-1-3: Determine the third initial remaining power threshold as the larger value between the first initial remaining power threshold and the second initial remaining power threshold.

[0125] In this embodiment, by performing the maximum operation on the first initial remaining power threshold and the second initial remaining power threshold, the third initial remaining power threshold can meet the threshold requirements under various working conditions and for different battery types and different hybrid system types.

[0126] S103-1-4: Determine a target correction ratio based on the gear information.

[0127] The specific implementation of S103-1-4 refers to the specific implementation of the foregoing S103-2-1, which will not be described here.

[0128] S103-1-5: Determine a target remaining power threshold based on the target correction ratio and the third initial remaining power threshold.

[0129] The target correction ratio also represents the downward amplitude of the third initial remaining power threshold value. For example, when the third initial remaining power threshold value is 30% and the target correction ratio is 2%, the target remaining power threshold value is 30% x (1-2%) = 19.8%.

[0130] In the embodiment, by comprehensively considering various working condition influence information and battery correction information, the third initial remaining power threshold value meeting the current actual working condition and the specific vehicle type can be determined, and the third initial remaining power threshold value is corrected by the gear information, so that the target remaining power threshold value meeting the current vehicle use scene can be obtained. In this way, the target remaining power threshold value can effectively adapt to different use working conditions and use scenes of the specific type of vehicle.

[0131] In summary, the remaining power threshold value determination method provided in the embodiment has the following advantages. First, for the low-temperature working condition which greatly affects the power battery, the received environment temperature can be processed in stages, so that the frequent changes of the environment temperature do not cause the frequent fluctuation of the target remaining power threshold value. Second, by comprehensively considering the current vehicle speed, the current accelerator pedal opening degree, the current environment temperature, the current battery temperature, the current atmospheric pressure, the current system mode, the current driving mode and various environmental and working condition information, the target remaining power threshold value can be dynamically adjusted in all working conditions. Third, by being corrected in a targeted manner for different battery types and different hybrid system types, the applicability of the scheme and the accuracy of the threshold correction can be effectively improved, so as to meet the threshold adjustment requirements of various hybrid vehicles. Fourth, by considering the gear information of the vehicle, a suitable target correction ratio can be determined for different use scenes, and further correction of the target remaining power threshold value can be realized. In this way, compared with the prior art which only simply sets the remaining power threshold value, the embodiment can dynamically adjust the target remaining power threshold value, so that the vehicle can better cope with complex and variable working conditions, avoid vehicle failures, improve the driving performance of the vehicle in various working conditions, and effectively improve the user experience.

[0132] Second, based on the same inventive concept, referring to FIG. 2, the disclosure embodiment provides a remaining power threshold value determination device 200, which comprises:

[0133] The information acquisition module 201 is configured to acquire the basic working condition information and the correction working condition information of the vehicle.

[0134] The threshold value determination module 202 is configured to determine a basic remaining power threshold value of the power battery based on the basic working condition information.

[0135] The threshold correction module 203 is configured to correct the basic residual power threshold based on the correction working condition information to obtain a target residual power threshold; the target residual power threshold is used to instruct to start the engine of the vehicle in a case where the current residual power of the power battery is lower than the target residual power threshold.

[0136] In an embodiment of the present disclosure, the basic working condition information includes a current vehicle speed, a current environment temperature and a current battery temperature of the power battery; the threshold determination module 202 includes:

[0137] A target environment temperature determination sub-module is configured to determine a target environment temperature based on the current environment temperature and a plurality of preset temperature intervals;

[0138] A basic threshold determination sub-module is configured to determine the basic residual power threshold based on the current vehicle speed, the target environment temperature and the current battery temperature.

[0139] In an embodiment of the present disclosure, the target environment temperature determination sub-module includes:

[0140] A current temperature determination unit is configured to determine a current environment sub-stage temperature based on the current environment temperature and the plurality of preset temperature intervals;

[0141] A historical temperature acquisition unit is configured to acquire a last historical environment sub-stage temperature of the current environment sub-stage temperature;

[0142] A gradient control unit is configured to determine the target environment temperature based on the historical environment sub-stage temperature and a preset temperature change gradient, so that the target environment temperature gradually reaches the current environment sub-stage temperature from the historical environment sub-stage temperature; wherein the temperature change gradient represents a temperature change amount per unit time.

[0143] In an embodiment of the present disclosure, the current temperature determination unit includes:

[0144] A first temperature determination sub-unit is configured to determine a lowest temperature in the plurality of temperature intervals as the current environment sub-stage temperature in a case where the current environment temperature is lower than the lowest temperature;

[0145] A second temperature determination sub-unit is configured to determine the current environment temperature as the current environment sub-stage temperature in a case where the current environment temperature is higher than a highest temperature in the plurality of temperature intervals;

[0146] A third temperature determination sub-unit is configured to determine a target temperature interval in which the current environment temperature is located in the plurality of temperature intervals in a case where the current environment temperature is between the lowest temperature and the highest temperature, and determine a lower limit value of the target temperature interval as the current environment sub-stage temperature in a case where the current environment temperature is in an upward trend; and determine an upper limit value of the target temperature interval as the current environment sub-stage temperature in a case where the current environment temperature is in a downward trend.

[0147] In an embodiment of the present disclosure, the basic threshold determination sub-module comprises:

[0148] The first threshold determination unit is configured to determine a first remaining power threshold based on the current vehicle speed and the target ambient temperature.

[0149] The second threshold determination unit is configured to determine a second remaining power threshold based on the current vehicle speed and the current battery temperature.

[0150] The basic threshold determination unit is configured to determine the larger one of the first remaining power threshold and the second remaining power threshold as the basic remaining power threshold.

[0151] In an embodiment of the present disclosure, the correction condition information comprises basic correction information and battery correction information; and the threshold correction module 203 comprises:

[0152] The first threshold correction sub-module is configured to correct the basic remaining power threshold based on the basic correction information and the battery correction information to obtain a target remaining power threshold, in a case where it is determined that the vehicle satisfies a preset battery correction condition.

[0153] The second threshold correction sub-module is configured to correct the basic remaining power threshold based on the basic correction information to obtain a target remaining power threshold, in a case where it is determined that the vehicle does not satisfy the battery correction condition.

[0154] In an embodiment of the present disclosure, the remaining power threshold determination method and device 200 further comprises:

[0155] The first condition determination module is configured to determine that the vehicle satisfies the battery correction condition, in a case where the battery type of the power battery is a target battery type and / or the hybrid system type of the vehicle is a target system type.

[0156] The second condition determination module is configured to determine that the vehicle does not satisfy the battery correction condition, in a case where the battery type of the power battery is not the target battery type and the hybrid system type of the vehicle is not the target system type.

[0157] In an embodiment of the present disclosure, the basic correction information comprises gear information and working condition influence information; and the second threshold correction sub-module comprises:

[0158] The basic threshold correction unit is configured to correct the basic remaining power threshold based on the working condition influence information to obtain a first initial remaining power threshold.

[0159] The correction ratio determination unit is configured to determine a target correction ratio based on the gear information.

[0160] The first target threshold determination unit is configured to determine a target remaining power threshold based on the target correction ratio and the first initial remaining power threshold.

[0161] In an embodiment of the present disclosure, the basic correction information includes gear information and working condition influence information; and the first threshold correction sub-module includes:

[0162] A basic threshold correction unit is configured to correct the basic residual power threshold based on the working condition influence information to obtain a first initial residual power threshold.

[0163] A battery correction unit is configured to correct the preset residual power threshold based on the battery correction information to obtain a second initial residual power threshold.

[0164] An initial threshold determination unit is configured to determine a larger value between the first initial residual power threshold and the second initial residual power threshold as a third initial residual power threshold.

[0165] A correction ratio determination unit is configured to determine a target correction ratio based on the gear information.

[0166] A second target threshold determination unit is configured to determine a target residual power threshold based on the target correction ratio and the third initial residual power threshold.

[0167] In an embodiment of the present disclosure, the working condition influence information includes at least one of first influence sub-information, second influence sub-information and third influence sub-information; wherein the first influence sub-information includes a current vehicle speed and a current accelerator pedal opening degree, the second influence sub-information includes a current atmospheric pressure, and the third influence sub-information includes a current system mode and a current driving mode.

[0168] The basic threshold correction unit includes:

[0169] A first correction amount determination sub-unit is configured to determine a first correction amount based on the first influence sub-information; and / or determine a second correction amount based on the second influence sub-information; and / or determine a third correction amount based on the third influence sub-information.

[0170] A second correction amount sub-unit is configured to determine a comprehensive correction amount based on at least one of the first correction amount, the second correction amount and the third correction amount.

[0171] A first initial threshold determination sub-unit is configured to determine the first initial residual power threshold based on the comprehensive correction amount and the basic residual power threshold.

[0172] In an embodiment of the present disclosure, the correction ratio determination unit includes:

[0173] A first ratio determination sub-unit is configured to determine a preset first correction ratio as the target correction ratio when the gear information is a neutral gear or a parking gear.

[0174] The second proportion determination subunit is configured to determine a target correction proportion based on a current vehicle speed of the vehicle when the gear information is not a neutral gear and is not a parking gear.

[0175] In an embodiment of the present disclosure, the battery correction information includes a current vehicle speed and a current battery temperature of the power battery; and the battery correction unit includes:

[0176] The battery correction amount determination subunit is configured to determine a target battery correction amount based on the current battery temperature, and determine a correction amount change gradient based on the current vehicle speed; wherein the correction amount change gradient represents a change amount of the correction amount per unit time.

[0177] The historical correction amount acquisition subunit is configured to acquire a last historical battery correction amount of the target battery correction amount.

[0178] The correction amount control subunit is configured to control the current battery correction amount to gradually reach the target battery correction amount from the historical battery correction amount based on the correction amount change gradient.

[0179] The second initial threshold determination subunit is configured to determine a second initial residual power threshold based on the current battery correction amount and a preset residual power threshold.

[0180] The specific implementation of the residual power threshold determination apparatus 200 of the embodiment of the present disclosure is described above with reference to the specific implementation of the residual power threshold determination method of the first aspect of the present disclosure, and will not be described here.

[0181] In a third aspect, based on the same inventive concept, an embodiment of the present disclosure provides a computer-readable storage medium having a executable program stored thereon, and the executable program is executed by a processor to implement the residual power threshold determination method of the first aspect of the present disclosure.

[0182] The specific implementation of the computer-readable storage medium of the embodiment of the present disclosure is described above with reference to the specific implementation of the residual power threshold determination method of the first aspect of the present disclosure, and will not be described here.

[0183] In a fourth aspect, with reference to FIG. 3, based on the same inventive concept, an embodiment of the present disclosure provides a vehicle 300, which includes:

[0184] The memory 301 is configured to store an executable program.

[0185] The processor 302 is configured to execute the executable program.

[0186] When the executable program is executed by the processor 302, the residual power threshold determination method of the first aspect of the present disclosure is implemented.

[0187] The specific implementation of the vehicle 300 of the embodiments of the present disclosure is described with reference to the specific implementation of the method for determining the residual power threshold value proposed in the first aspect of the embodiments of the present disclosure, which will not be described herein again.

[0188] Those skilled in the art should understand that the embodiments of the present disclosure can be provided as a method, a device, or a computer program product. Therefore, the embodiments of the present disclosure can adopt a completely hardware embodiment, a completely software embodiment, or an embodiment combining software and hardware aspects. Moreover, the embodiments of the present disclosure can adopt a computer program product implemented on one or more computer usable storage media (including but not limited to disk storage, CD-ROM, optical storage, etc.) containing computer usable program codes.

[0189] The embodiments of the present disclosure are described with reference to flowcharts and / or block diagrams of the method, terminal device (system), and computer program product according to the embodiments of the present disclosure. It should be understood that each flow and / or block in the flowcharts and / or block diagrams, and the combination of the flows and / or blocks in the flowcharts and / or block diagrams can be implemented by computer program instructions. These computer program instructions can be provided to a general-purpose computer, a special-purpose computer, an embedded processor, or other programmable data processing terminal device to produce a machine, so that the instructions executed by the processor of the computer or other programmable data processing terminal device produce a device for implementing the functions specified in one or more flows in the flowcharts and / or one or more blocks in the block diagrams.

[0190] These computer program instructions can also be stored in a computer readable storage medium that can guide the computer or other programmable data processing terminal device to work in a specific manner, so that the instructions stored in the computer readable storage medium produce a product including instruction devices, which implement the functions specified in one or more flows in the flowcharts and / or one or more blocks in the block diagrams.

[0191] These computer program instructions can also be loaded into a computer or other programmable data processing terminal device, so that a series of operation steps are performed on the computer or other programmable terminal device to produce a computer-implemented process, so that the instructions executed on the computer or other programmable terminal device provide steps for implementing the functions specified in one or more flows in the flowcharts and / or one or more blocks in the block diagrams.

[0192] Although the preferred embodiments of the embodiments of the present disclosure have been described, those skilled in the art can make additional changes and modifications to these embodiments once they understand the basic inventive concept. Therefore, the appended claims are intended to be interpreted as including the preferred embodiments and all changes and modifications falling within the scope of the embodiments of the present disclosure.

[0193] Finally, relational terms such as first and second and the like can be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Moreover, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but can include other elements not expressly listed or inherent to such process, method, article, or apparatus. An element proceeded by "comprises... a" does not, without more constraints, exclude the existence of additional identical elements in the process, method, article, or apparatus that comprises the element.

[0194] The above describes in detail the residual power threshold determination method, storage medium and vehicle provided by the present application. The principles and implementation manners of the present application are described by using specific examples. The above description of the embodiments is only used to help understand the method of the present application and its core idea. Meanwhile, for those skilled in the art, the specific implementation manners and application ranges can be changed according to the idea of the present application. In summary, the content of the specification should not be understood as a limitation of the present application.

Claims

1. A method for determining a residual power threshold, comprising: obtaining basic working condition information and correction working condition information of a vehicle; determining a basic residual power threshold of a power battery based on the basic working condition information; correcting the basic residual power threshold based on the correction working condition information to obtain a target residual power threshold, wherein the target residual power threshold is used to indicate that an engine of the vehicle is started when a current residual power of the power battery is lower than the target residual power threshold.

2. The method of claim 1, wherein, The basic working condition information comprises a current vehicle speed, a current ambient temperature and a current battery temperature of the power battery. The step of determining the basic residual power threshold of the power battery based on the basic working condition information comprises: determining a target ambient temperature based on the current ambient temperature and a plurality of preset temperature intervals; determining the basic residual power threshold based on the current vehicle speed, the target ambient temperature and the current battery temperature.

3. The method of claim 2, wherein, The step of determining the target ambient temperature based on the current ambient temperature and the plurality of preset temperature intervals comprises: determining a current ambient sub-stage temperature based on the current ambient temperature and the plurality of preset temperature intervals; obtaining a last historical ambient sub-stage temperature of the current ambient sub-stage temperature; determining the target ambient temperature based on the historical ambient sub-stage temperature and a preset temperature change gradient, so that the target ambient temperature gradually reaches the current ambient sub-stage temperature from the historical ambient sub-stage temperature; wherein the temperature change gradient represents a temperature change amount per unit time.

4. The method of claim 3, wherein, The step of determining the current ambient sub-stage temperature based on the current ambient temperature and the plurality of preset temperature intervals comprises: in a case where the current ambient temperature is lower than a lowest temperature of the plurality of temperature intervals, determining the lowest temperature as the current ambient sub-stage temperature; in a case where the current ambient temperature is higher than a highest temperature of the plurality of temperature intervals, determining the current ambient temperature as the current ambient sub-stage temperature; in a case where the current ambient temperature is between the lowest temperature and the highest temperature, determining a target temperature interval of the plurality of temperature intervals in which the current ambient temperature is located, and in a case where the current ambient temperature is in an upward trend, determining a lower limit value of the target temperature interval as the current ambient sub-stage temperature; in a case where the current ambient temperature is in a downward trend, determining an upper limit value of the target temperature interval as the current ambient sub-stage temperature.

5. The method of claim 2, wherein, The step of determining the basic residual power threshold of the power battery based on the target ambient temperature, the current vehicle speed and the current battery temperature of the power battery comprises: determining a first residual power threshold based on the current vehicle speed and the target ambient temperature; determining a second residual power threshold based on the current vehicle speed and the current battery temperature; determining a larger value between the first residual power threshold and the second residual power threshold as the basic residual power threshold.

6. The method of claim 1, wherein, The correction working condition information comprises basic correction information and battery correction information. The step of correcting the basic residual power threshold to obtain the target residual power threshold based on the correction working condition information comprises: In a case where it is determined that the vehicle meets the preset battery correction condition, the basic residual power threshold is corrected based on the basic correction information and the battery correction information to obtain the target residual power threshold; In a case where it is determined that the vehicle does not meet the battery correction condition, the basic residual power threshold is corrected based on the basic correction information to obtain the target residual power threshold.

7. A method of determining a remaining charge threshold according to claim 6, wherein, The method further comprises: In a case where the battery type of the power battery is a target battery type and / or the hybrid system type of the vehicle is a target system type, it is determined that the vehicle meets the battery correction condition; In a case where the battery type of the power battery is not a target battery type and the hybrid system type of the vehicle is not a target system type, it is determined that the vehicle does not meet the battery correction condition.

8. The method of claim 6, wherein, The basic correction information comprises gear information and working condition influence information; The step of correcting the basic residual power threshold to obtain the target residual power threshold based on the basic correction information comprises: The basic residual power threshold is corrected based on the working condition influence information to obtain a first initial residual power threshold; A target correction ratio is determined based on the gear information; The target residual power threshold is determined based on the target correction ratio and the first initial residual power threshold.

9. The method of claim 6, wherein, The basic correction information comprises gear information and working condition influence information; The step of correcting the basic residual power threshold to obtain the target residual power threshold based on the basic correction information and the battery correction information comprises: The basic residual power threshold is corrected based on the working condition influence information to obtain a first initial residual power threshold; A preset residual power threshold is corrected based on the battery correction information to obtain a second initial residual power threshold; The greater one of the first initial residual power threshold and the second initial residual power threshold is determined as a third initial residual power threshold; A target correction ratio is determined based on the gear information; The target residual power threshold is determined based on the target correction ratio and the third initial residual power threshold.

10. A method of determining a remaining charge threshold according to claim 8 or 9, wherein, The working condition influence information comprises at least one of a first influence sub-information, a second influence sub-information and a third influence sub-information; wherein the first influence sub-information comprises a current vehicle speed and a current accelerator pedal opening degree, the second influence sub-information comprises a current atmospheric pressure, and the third influence sub-information comprises a current system mode and a current driving mode; The step of correcting the basic residual power threshold to obtain the first initial residual power threshold based on the working condition influence information comprises: A first correction amount is determined based on the first influence sub-information; and / or, a second correction amount is determined based on the second influence sub-information; and / or, a third correction amount is determined based on the third influence sub-information; A comprehensive correction amount is determined based on at least one of the first correction amount, the second correction amount and the third correction amount; determine the first initial remaining power threshold value based on the comprehensive correction amount and the base residual power threshold value.

11. A method of determining a remaining charge threshold according to claim 8 or 9, wherein, The step of determining the target correction ratio based on the gear information comprises: when the gear information is the neutral gear or the parking gear, determining a preset first correction ratio as the target correction ratio; when the gear information is not the neutral gear and not the parking gear, determining the target correction ratio based on the current vehicle speed of the vehicle.

12. The method of claim 9, wherein, The battery correction information comprises the current vehicle speed and the current battery temperature of the power battery; The step of correcting the preset residual power threshold value based on the battery correction information to obtain a second initial residual power threshold value comprises: determining a target battery correction amount based on the current battery temperature and determining a correction amount change gradient based on the current vehicle speed, wherein the correction amount change gradient represents the change amount of the correction amount per unit time; obtaining a last historical battery correction amount of the target battery correction amount; controlling the current battery correction amount to gradually reach the target battery correction amount from the historical battery correction amount based on the correction amount change gradient; determining the second initial residual power threshold value based on the current battery correction amount and the preset residual power threshold value. 13.A computer readable storage medium having stored thereon an executable program, which, when executed by a processor, implements the residual power threshold value determination method according to any one of claims 1-12. 14.A vehicle, comprising: a memory for storing an executable program; a processor; when the executable program is executed by the processor, the residual power threshold value determination method according to any one of claims 1-12 is implemented. 15.A residual power threshold value determination apparatus, comprising: an information acquisition module for acquiring base working condition information and correction working condition information of a vehicle; a threshold value determination module for determining a base residual power threshold value of a power battery based on the base working condition information; a threshold value correction module for correcting the base residual power threshold value based on the correction working condition information to obtain a target residual power threshold value, wherein the target residual power threshold value is used to indicate that the engine of the vehicle is started when the current residual power of the power battery is lower than the target residual power threshold value.

16. A residual capacity threshold determination apparatus according to claim 15, wherein, The base working condition information comprises a current vehicle speed, a current environment temperature and a current battery temperature of the power battery. The threshold value determination module comprises: a target environment temperature determination sub-module for determining a target environment temperature based on the current environment temperature and a plurality of preset temperature intervals; a base threshold value determination sub-module for determining the base residual power threshold value based on the current vehicle speed, the target environment temperature and the current battery temperature.

17. The remaining power threshold determination apparatus of claim 15, wherein, The correction working condition information comprises base correction information and battery correction information. The threshold value correction module comprises: a first threshold value correction sub-module for correcting the base residual power threshold value based on the base correction information and the battery correction information to obtain a target residual power threshold value when it is determined that the vehicle meets a preset battery correction condition. The second threshold correction submodule is configured to correct the basic remaining power threshold based on the basic correction information to obtain a target remaining power threshold, in a case where it is determined that the vehicle does not satisfy the battery correction condition.

18. The remaining power threshold determination apparatus according to claim 17, further comprising: The first condition determination module is configured to determine that the vehicle satisfies the battery correction condition, in a case where the battery type of the power battery is a target battery type and / or the hybrid system type of the vehicle is a target system type. The second condition determination module is configured to determine that the vehicle does not satisfy the battery correction condition, in a case where the battery type of the power battery is not the target battery type and the hybrid system type of the vehicle is not the target system type.

19. The remaining power threshold determination apparatus of claim 17, wherein, The basic correction information includes gear information and working condition influence information. The second threshold correction submodule includes: The basic threshold correction unit is configured to correct the basic remaining power threshold based on the working condition influence information to obtain a first initial remaining power threshold. The correction ratio determination unit is configured to determine a target correction ratio based on the gear information. The first target threshold determination unit is configured to determine the target remaining power threshold based on the target correction ratio and the first initial remaining power threshold.

20. The remaining power threshold determination apparatus of claim 17, wherein, The basic correction information includes gear information and working condition influence information. The first threshold correction submodule includes: The basic threshold correction unit is configured to correct the basic remaining power threshold based on the working condition influence information to obtain a first initial remaining power threshold. The battery correction unit is configured to correct the preset remaining power threshold based on the battery correction information to obtain a second initial remaining power threshold. The initial threshold determination unit is configured to determine a larger one of the first initial remaining power threshold and the second initial remaining power threshold as a third initial remaining power threshold. The correction ratio determination unit is configured to determine a target correction ratio based on the gear information. The second target threshold determination unit is configured to determine the target remaining power threshold based on the target correction ratio and the third initial remaining power threshold.

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