Vehicle driving capacity processing method and apparatus, storage medium, and vehicle

Abstract

The present disclosure relates to the field of vehicle control. Disclosed are a vehicle driving capacity processing method and apparatus, a storage medium, and a vehicle. The method comprises: acquiring a real-time vehicle speed of a vehicle and real-time state parameters of a battery; on the basis of the real-time vehicle speed, determining a motor driving capacity and a theoretical motor driving capacity of the vehicle; and in response to the motor driving capacity not satisfying the theoretical motor driving capacity or the real-time state parameters not satisfying preset state parameters, outputting prompt information. The present disclosure solves the technical problem in the prior art of low calculation accuracy of a driving capacity of a driving system of a vehicle.

Description

Vehicle driving capability processing method and device, storage medium and vehicle TECHNICAL FIELD

[0001] The present disclosure relates to the field of vehicle control, and in particular, to a vehicle driving capability processing method, device, storage medium and vehicle. BACKGROUND

[0002] When an electric vehicle is driven daily, driving capability may be limited, resulting in reduced power of the vehicle, poor acceleration, and failure to reach the expected speed of the driver. When the problem occurs, if the driver still drives according to the previous mode, the degree of limitation of the driving capability may be aggravated or the time of limitation may be prolonged. When the driver attempts to overtake at this time, the overtaking may fail due to insufficient power, and even a collision with an oncoming vehicle may occur, which seriously threatens the safety of the driver and the passenger.

[0003] Therefore, it is necessary to remind the driver in time when the driving capability is limited, based on improving the driving experience of the driver or from the perspective of complying with national standards. However, the current prompt of the driving capability of the vehicle is mainly through calculation of the motor-battery system or only simple calculation of the torque of the vehicle. However, the working parameters of the motor-battery system can only roughly reflect the driving capability of the driving system, and the torque cannot accurately reflect the driving capability of the driving system of the vehicle in the case of overload, which results in low calculation accuracy of the driving capability of the driving system of the vehicle.

[0004] At present, no effective solution has been proposed for the above problems.

[0005] SUMMARY

[0006] The embodiments of the present disclosure provide a vehicle driving capability processing method, device, storage medium and vehicle, which at least solve the technical problem of low calculation accuracy of the driving capability of the driving system of the vehicle in the prior art.

[0007] According to an aspect of an embodiment of the present disclosure, a method for processing driving capability of a vehicle is provided. The electric drive system of the vehicle includes at least one driving motor and a battery. The method includes: obtaining a real-time vehicle speed of the vehicle and a real-time state parameter of the battery, wherein the real-time state parameter includes a discharge driving capability and a residual energy; determining a motor driving capability of the vehicle and a motor theoretical driving capability based on the real-time vehicle speed, wherein the motor driving capability is used to represent a driving capability of the driving motor corresponding to the real-time vehicle speed under actual operating conditions of the vehicle and environmental factors, and the motor theoretical driving capability is used to represent a driving capability of the driving motor corresponding to the real-time vehicle speed under a fault-free state of the electric drive system; and outputting prompt information in response to the motor driving capability not satisfying the motor theoretical driving capability or the real-time state parameter not satisfying a preset state parameter, wherein the prompt information is used to prompt that the driving capability of the electric drive system is limited, and the preset state parameter is used to represent a state parameter of the battery under the fault-free state of the electric drive system.

[0008] Optionally, the determining of the motor driving capability of the vehicle and the motor theoretical driving capability based on the real-time vehicle speed includes: determining a transmission ratio of each driving motor to a wheel end of the vehicle; determining a target speed of each driving motor based on the real-time vehicle speed and the transmission ratio of each driving motor; determining the motor theoretical driving capability based on the target speed of each driving motor and an external characteristic curve map of the driving motor; and determining the motor driving capability based on the target speed of each driving motor and a system temperature.

[0009] Optionally, the determining of the motor theoretical driving capability based on the target speed of each driving motor and the external characteristic curve map of the driving motor includes: determining an external characteristic capability of each driving motor from the external characteristic curve map of the driving motor based on the target speed of each driving motor; and obtaining the motor theoretical driving capability by aggregating the external characteristic capability of each driving motor based on a power system configuration of the at least one driving motor.

[0010] Optionally, the determining of the motor driving capability based on the target speed of each driving motor and the system temperature includes: determining a real-time driving capability of each driving motor based on the target speed of each driving motor, the system temperature, and a platform voltage; and obtaining the motor driving capability by aggregating the real-time driving capability of each driving motor based on the power system configuration of the at least one driving motor.

[0011] Optionally, after the determining of the motor driving capability of the vehicle and the motor theoretical driving capability based on the real-time vehicle speed, the method further includes: obtaining a product of the motor theoretical driving capability and a first preset value to obtain a first threshold; determining that the motor driving capability does not satisfy the motor theoretical driving capability in response to the motor driving capability being less than the first threshold; and determining that the motor driving capability satisfies the motor theoretical driving capability in response to the motor driving capability being greater than or equal to the first threshold.

[0012] Optionally, after obtaining the real-time state parameter of the battery, the method further comprises: in response to the residual energy being less than the second threshold value and the discharge driving capability being less than the third threshold value, determining that the real-time state parameter does not meet the preset state parameter; and in response to the residual energy being greater than or equal to the second threshold value or the discharge driving capability being greater than or equal to the third threshold value, determining that the real-time state parameter meets the preset state parameter.

[0013] Optionally, in response to the motor driving capability not meeting the motor theoretical driving capability or the real-time state parameter not meeting the preset state parameter, outputting the prompt information comprises: in response to the motor driving capability not meeting the motor theoretical driving capability or the real-time state parameter not meeting the preset state parameter, determining whether the prompt information meets an arbitration condition, wherein the arbitration condition is used to represent a condition for outputting the prompt information; in response to the prompt information meeting the arbitration condition, outputting the prompt information; and in response to the prompt information not meeting the arbitration condition, prohibiting the output of the prompt information.

[0014] Optionally, determining whether the prompt information meets the arbitration condition comprises: in response to the motor driving capability not meeting the motor theoretical driving capability or the real-time state parameter not meeting the preset state parameter, controlling the electric drive system to be powered on at high voltage; in response to the electric drive system being powered on at high voltage being completed, determining whether the power system of the vehicle has failed; in response to the power system not having failed, determining an effective time of the prompt information, wherein the effective time is used to represent a duration for which the motor driving capability does not meet the motor theoretical driving capability or the real-time state parameter does not meet the preset state parameter; in response to the effective time being greater than or equal to a preset time, determining that the prompt information meets the arbitration condition; and in response to the electric drive system not being powered on at high voltage, or the power system having failed, or the effective time being less than the preset time, determining that the prompt information does not meet the arbitration condition.

[0015] Optionally, after outputting the prompt information, the method further comprises: obtaining a power supply mode of the vehicle; based on the power supply mode, determining whether the prompt information meets a release arbitration condition, wherein the release arbitration condition is used to represent a condition for stopping outputting the prompt information; in response to the prompt information meeting the release arbitration condition, stopping outputting the prompt information; and in response to the prompt information not meeting the release arbitration condition, continuing to output the prompt information.

[0016] Optionally, based on the power supply mode, determining whether the prompt information meets the release arbitration condition comprises: in response to the power supply mode being a power-on mode, determining that the prompt information does not meet the release arbitration condition; and in response to the power supply mode being switched from the power-on mode to a power-off mode, determining that the prompt information meets the release arbitration condition.

[0017] According to another aspect of the embodiments of the present disclosure, a processing device for vehicle driving capability is also provided. The electric drive system of the vehicle includes at least one driving motor and a battery. The device includes: an acquisition module configured to acquire a real-time vehicle speed of the vehicle and a real-time state parameter of the battery, wherein the real-time state parameter includes a discharge driving capability and a residual energy; a determination module configured to determine a motor driving capability of the vehicle and a motor theoretical driving capability based on the real-time vehicle speed, wherein the motor driving capability is used to represent the driving capability of the driving motor corresponding to the real-time vehicle speed under the actual operating state and environmental factors of the vehicle, and the motor theoretical driving capability is used to represent the driving capability of the driving motor corresponding to the real-time vehicle speed under the fault-free state of the electric drive system; and an output module configured to output a prompt information in response to the motor driving capability not satisfying the motor theoretical driving capability or the real-time state parameter not satisfying a preset state parameter, wherein the prompt information is used to prompt that the driving capability of the electric drive system is limited, and the preset state parameter is used to represent the state parameter of the battery under the fault-free state of the electric drive system.

[0018] According to another aspect of the embodiments of the present disclosure, a vehicle is also provided. The vehicle includes a memory storing an executable program, and a processor configured to execute the program, wherein the program performs the method in the embodiments of the present disclosure when executed.

[0019] According to another aspect of the embodiments of the present disclosure, a computer readable storage medium is also provided. The computer readable storage medium includes a stored executable program, wherein the computer readable storage medium controls the device where the computer readable storage medium is located to perform the method in the embodiments of the present disclosure when the executable program is executed.

[0020] According to another aspect of the embodiments of the present disclosure, a computer program product is also provided. The computer program product includes a computer program, and the computer program implements the method in the embodiments of the present disclosure when executed by a processor.

[0021] According to another aspect of the embodiments of the present disclosure, a computer program product is also provided. The computer program product includes a non-volatile computer readable storage medium storing a computer program, and the computer program implements the method in the embodiments of the present disclosure when executed by a processor.

[0022] According to another aspect of the embodiments of the present disclosure, a computer program is also provided. The computer program implements the method in the embodiments of the present disclosure when executed by a processor.

[0023] In the embodiments of the present disclosure, the real-time vehicle speed and the real-time state parameter of the battery are acquired, the motor driving capability of the vehicle and the motor theoretical driving capability are determined based on the real-time vehicle speed, and the prompt information is output in response to that the motor driving capability does not meet the motor theoretical driving capability or the real-time state parameter does not meet the preset state parameter. Through the calculation on the acquired real-time vehicle speed and the real-time state parameter of the battery, the division by zero error can be avoided, the real-time state parameter of the battery is acquired, the battery and the motor are decoupled, the flexibility of the driving system is improved, the driving capability of the driving system can be accurately calculated, the technical effect of improving the calculation accuracy of the driving capability of the driving system is achieved, and the technical problem of low calculation accuracy of the driving capability of the driving system of the vehicle in the prior art is solved. BRIEF DESCRIPTION OF DRAWINGS

[0024] The accompanying drawings, which are included to provide a further understanding of the present disclosure, constitute a part of the present disclosure and illustrate embodiments of the present disclosure and its description, which serve to explain the present disclosure, and do not constitute improper limitations on the present disclosure. In the drawings:

[0025] FIG. 1 is a flowchart of a processing method of a driving capability of a vehicle according to an embodiment of the present disclosure;

[0026] FIG. 2 is a flowchart of an optional processing method of a driving capability according to an embodiment of the present disclosure;

[0027] FIG. 3 is a flowchart of an optional processing method of a driving capability based on a motor end and a battery end according to an embodiment of the present disclosure;

[0028] FIG. 4 is a schematic diagram of a processing device of a driving capability of a vehicle according to an embodiment of the present disclosure. DETAILED DESCRIPTION

[0029] In order to enable those skilled in the art to better understand the present disclosure scheme, the technical solutions in the embodiments of the present disclosure will be clearly and completely described below in conjunction with the drawings in the embodiments of the present disclosure. Obviously, the described embodiments are only a part of the embodiments of the present disclosure, but not all the embodiments. Based on the embodiments in the present disclosure, all other embodiments obtained by those skilled in the art without creative labor should be within the protection scope of the present disclosure.

[0030] It should be noted that the terms "first", "second", and the like in the description and in the claims of the present disclosure and above-described accompanying drawings are used to distinguish similar objects and are not necessarily used to describe a particular sequential or chronological order. It should be understood that the data thus used can be interchanged under appropriate circumstances so that the embodiments of the present disclosure described herein can be implemented in other sequences than those illustrated or described herein. In addition, the terms "comprise" and "have" and any variations thereof are intended to cover non-exclusive inclusion, for example, a process, method, system, product, or apparatus that includes a list of steps or units as processes, methods, systems, products, or apparatuses are not necessarily limited to those steps or units clearly listed, but can include other steps or units not clearly listed or inherent to these processes, methods, products, or apparatuses.

[0031] Embodiment 1

[0032] According to an embodiment of the present disclosure, a vehicle driving capability processing method embodiment is provided. It should be noted that the steps shown in the flowchart of the accompanying drawings can be executed in a computer system such as a set of computer executable instructions, and although a logical order is shown in the flowchart, in some cases, the steps shown or described herein can be executed in a different order than that shown herein.

[0033] FIG. 1 is a flowchart of a vehicle driving capability processing method according to an embodiment of the present disclosure, the electric drive system of the vehicle comprising at least one drive motor and a battery, as shown in FIG. 1, the method comprising the following steps:

[0034] Step S102, obtaining the real-time vehicle speed of the vehicle and the real-time state parameters of the battery, wherein the real-time state parameters include: discharge driving capability and residual energy.

[0035] The vehicle described above can be any new energy vehicle in the prior art, wherein the electric drive system of the any new energy vehicle comprises at least one drive motor and a battery, and the electric drive system does not have a power separation device, i.e., the physical connection between the drive motor and the drive wheel cannot be cut off. The discharge driving capability described above can be the output capability of the battery. The residual energy described above can be the state of charge of the battery. The configuration of the drive system comprising at least one drive motor and a battery can include but is not limited to: a distributed four-wheel drive configuration, a dual-motor four-wheel drive configuration, and a single-motor four-wheel drive configuration, wherein the distributed four-wheel drive configuration comprises four motors, the dual-motor four-wheel drive configuration comprises two motors, and the single-motor four-wheel drive configuration comprises one motor.

[0036] In an optional embodiment, during the driving of the vehicle, the driving motor in the driving system can provide power for the vehicle, and can also control the speed, torque and direction of the vehicle to ensure that the vehicle can drive normally. Therefore, in order to ensure the safety of the vehicle during driving, it is necessary to accurately calculate the current driving capability of the driving motor in the vehicle driving system. At this time, first, the real-time vehicle speed and the real-time state parameters of the battery, such as the real-time discharge driving capability and the real-time remaining energy of the battery, can be obtained. For example, the real-time vehicle speed can be obtained through a vehicle speed sensor, and the real-time state parameters of the battery can be obtained through a battery management system, but not limited to this.

[0037] In step S104, the motor driving capability and the motor theoretical driving capability of the vehicle are determined based on the real-time vehicle speed, wherein the motor driving capability is used to represent the driving capability of the driving motor corresponding to the real-time vehicle speed under the actual operating state and environmental factors of the vehicle, and the motor theoretical driving capability is used to represent the driving capability of the driving motor corresponding to the real-time vehicle speed under the fault-free state of the electric drive system.

[0038] The above-mentioned motor driving capability a can also be referred to as motor allowable capability, which is the maximum driving capability of the electric drive system that can be exerted corresponding to the current vehicle speed, which is calculated by the vehicle control unit (VCU) based on the current actual operating state and environmental factors of the vehicle. The above-mentioned motor theoretical driving capability A can also be referred to as external characteristic capability, which is the maximum driving capability that can be exerted by the electric drive system under different vehicle speeds in an ideal fault-free state, which is a kind of driving capability under ideal state. Generally, a will be close to A, but will not differ too much. It should be noted that the above-mentioned driving capability can be power or torque.

[0039] In an optional embodiment, the motor driving capability can be calculated by vehicle speed, transmission ratio, wheel radius, electric drive system temperature, electric drive system voltage. For example, the motor speed can be calculated by vehicle speed, transmission ratio and wheel radius, and then the motor driving capability can be obtained based on the motor speed, electric drive system temperature and platform voltage of the electric drive system, wherein the motor driving capability can be calculated by a preset formula, and the motor driving capability can also be directly output by a trained calculation model, but not limited to this.

[0040] In another optional embodiment, the motor driving capability can also be calculated by vehicle speed, transmission ratio, motor power and torque demand, wherein the motor driving capability can be calculated by a preset formula, and the motor driving capability can also be directly output by a trained calculation model, but not limited to this.

[0041] In another alternative embodiment, the motor theoretical driving capability can be calculated by the vehicle speed and the motor performance map (MPM), but is not limited thereto. The motor performance map (MPM) is a chart used to describe the performance of the motor under different working conditions. This map is usually composed of several coordinate axes to show the performance of the motor under different input parameters, such as output power, efficiency, torque, etc.

[0042] In step S106, in response to the motor driving capability not meeting the motor theoretical driving capability or the real-time state parameter not meeting the preset state parameter, a prompt information is outputted, wherein the prompt information is used to prompt that the driving capability of the electric drive system is limited, and the preset state parameter is used to represent the state parameter of the battery under the fault-free state of the electric drive system.

[0043] The preset state parameter can include but is not limited to the preset discharge driving capability and the preset residual energy. The preset state parameter can be set by the user in advance to determine whether the driving capability of the driving motor will be significantly reduced. When the real-time state parameter of the battery is greater than or equal to the preset state parameter, it can be indicated that the driving capability of the driving motor will not be significantly reduced (i.e., the driving motor is fault-free), and when the real-time state parameter of the battery is less than the preset state parameter, it can be indicated that the driving capability of the driving motor will be significantly reduced. The specific value of the preset state parameter is not limited in the embodiment, and the user can set it according to the actual demand. In the embodiment, the value of the preset state parameter can be 40 kW and 20% of the power, but is not limited thereto.

[0044] The prompt information is used to prompt the user driving the vehicle that the current driving capability of the vehicle is insufficient, and the user needs to drive carefully. The prompt information can include but is not limited to the text information displayed on the center screen, the animation information played through the center screen, and the voice information played through the microphone of the vehicle.

[0045] In an alternative embodiment, after obtaining the motor driving capability, the motor driving capability and the motor theoretical driving capability can be compared, and the real-time state parameter of the battery and the preset state parameter can be compared. When the motor driving capability does not meet the motor theoretical driving capability, for example, the motor driving capability is less than 0.2 times the motor theoretical driving capability, or the real-time state parameter does not meet the preset state parameter, for example, the discharge driving capability is less than the preset discharge driving capability, and the residual energy is less than the preset residual energy, it can be indicated that the driving capability of the driving motor will be significantly reduced, and the prompt information can be outputted to remind the user.

[0046] In another optional embodiment, in the case that it is determined that the motor driving capability does not meet the motor theoretical driving capability, or the real-time state parameter does not meet the preset state parameter, the state of the driving system of the vehicle can also be determined, and the output prompt information is determined when the driving system of the vehicle is in the high-voltage state, but is not limited thereto.

[0047] In the embodiments of the present disclosure, the real-time vehicle speed and the real-time state parameter of the battery are obtained, the motor driving capability and the motor theoretical driving capability of the vehicle are determined based on the real-time vehicle speed, and the prompt information is output in response to the motor driving capability not meeting the motor theoretical driving capability or the real-time state parameter not meeting the preset state parameter. By calculating the obtained real-time vehicle speed and the real-time state parameter of the battery, zero division error can be avoided, and by obtaining the real-time state parameter of the battery, the battery and the motor can be decoupled, the flexibility of the driving system is improved, the driving capability of the driving system can be accurately calculated, and the technical effect of improving the calculation accuracy of the driving capability of the driving system of the vehicle is achieved, thereby solving the technical problem of low calculation accuracy of the driving capability of the driving system of the vehicle in the prior art.

[0048] Optionally, determining the motor driving capability and the motor theoretical driving capability of the vehicle based on the real-time vehicle speed comprises: determining the transmission ratio of each driving motor to the wheel end of the vehicle; determining the target speed of each driving motor based on the real-time vehicle speed and the transmission ratio of each driving motor; determining the motor theoretical driving capability based on the target speed of each driving motor and the driving motor external characteristic curve map; and determining the motor driving capability based on the target speed of each driving motor and the system temperature.

[0049] In an optional embodiment, the transmission ratio of each driving motor to the wheel end of the vehicle can be obtained first, and the target speed n of each driving motor can be obtained by the following formula (1), wherein the unit of n is n / min:

[0050] wherein 1000, 60 and 2π are constant values, v is the real-time vehicle speed, the unit is km / h, r is the wheel radius, the unit is m, and η is the transmission ratio of each driving motor to the wheel end of the vehicle.

[0051] In another optional embodiment, after obtaining the target speed of each driving motor, the motor theoretical driving capability can be determined based on the target speed of each driving motor and the driving motor external characteristic curve map, for example, the external characteristic capability of each driving motor can be determined based on the driving motor external characteristic curve map, and then the external characteristic capability of each driving motor is summarized, i.e. the motor theoretical driving capability can be obtained.

[0052] In another optional embodiment, after obtaining the target rotating speed of each driving motor, the motor driving capability can be determined based on the target rotating speed of each driving motor and the system temperature. For example, the real-time driving capability of each driving motor can be calculated by the target rotating speed, the system temperature and the platform pressure of the electric drive system, and then the real-time driving capability of each driving motor is summarized to obtain the motor driving capability.

[0053] Optionally, the motor theoretical driving capability is determined based on the target rotating speed of each driving motor and the driving motor external characteristic curve atlas, including: determining the external characteristic capability of each driving motor from the driving motor external characteristic curve atlas based on the target rotating speed of each driving motor; and summarizing the external characteristic capability of each driving motor to obtain the motor theoretical driving capability based on the power system configuration of at least one driving motor.

[0054] The power system configuration described above can include but is not limited to: a distributed four-wheel drive configuration, a dual-motor four-wheel drive configuration and a single-motor four-wheel drive configuration.

[0055] In an optional embodiment, the motor theoretical driving capability A can be obtained by the following formula (2):

[0056] Wherein, n is the target rotating speed of each driving motor calculated, the subscript of n represents the number of driving motors under different configurations, and F(n) is the external characteristic capability corresponding to each driving motor. As can be seen from the above formula, in the distributed four-wheel drive configuration, the external characteristic capability of each driving motor of the four driving motors can be summarized to obtain the motor theoretical driving capability A. In the dual-motor four-wheel drive configuration, the external characteristic capability of each driving motor of the two driving motors can be summarized to obtain the motor theoretical driving capability A. In the single-motor four-wheel drive configuration, the external characteristic capability of the driving motor is the motor theoretical driving capability A.

[0057] It should be noted that based on the driving motor external characteristic MAP atlas, the VCU can calculate the external characteristic capability of a specific driving motor at a specific rotating speed. Further, the VCU can obtain the algebraic sum A of all driving motor external characteristic capabilities.

[0058] Optionally, the motor driving capability is determined based on the target rotating speed of each driving motor and the system temperature, including: determining the real-time driving capability of each driving motor based on the target rotating speed of each driving motor, the system temperature and the platform voltage; and summarizing the real-time driving capability of each driving motor to obtain the motor driving capability based on the power system configuration of at least one driving motor.

[0059] In an optional embodiment, the motor driving capability a can be obtained by the following formula (3):

[0060] wherein V is a platform voltage, T is a system temperature, wherein each driving motor under different configurations has a corresponding system temperature and platform voltage, and f(n, V, T) is a real-time driving capability corresponding to each driving motor.

[0061] It can be known from the above formula that, in the distributed four-wheel drive configuration, the real-time driving capabilities of the four driving motors can be summarized to obtain the motor driving capability. In the dual-motor four-wheel drive configuration, the real-time driving capabilities of the two driving motors can be summarized to obtain the motor driving capability. In the single-motor four-wheel drive configuration, the real-time driving capability of the driving motor is the motor driving capability.

[0062] Optionally, after determining the motor driving capability and the motor theoretical driving capability based on the real-time vehicle speed, the method further comprises: obtaining a product of the motor theoretical driving capability and a first preset value to obtain a first threshold; in response to the motor driving capability being less than the first threshold, determining that the motor driving capability does not meet the motor theoretical driving capability; and in response to the motor driving capability being greater than or equal to the first threshold, determining that the motor driving capability meets the motor theoretical driving capability.

[0063] The first preset value described above is used to determine whether the motor driving capability meets the motor theoretical driving capability. The specific value can be set by the user according to actual needs, which is not limited in the embodiment and can be 0.2, but is not limited thereto and can also be 0.3, 0.1, etc.

[0064] In an alternative embodiment, after obtaining the motor driving capability and the motor theoretical driving capability, a product of the motor theoretical driving capability and a first preset value can be obtained first to obtain a first threshold, and then the motor driving capability can be compared with the first threshold. In the case that the motor driving capability is less than the first threshold, it can be determined that the motor driving capability does not meet the motor theoretical driving capability. In the case that the motor driving capability is greater than or equal to the first threshold, it can be determined that the motor driving capability meets the motor theoretical driving capability. It should be noted that in the case that the motor driving capability does not meet the motor theoretical driving capability, the motor driving capability can be determined to be abnormal.

[0065] Optionally, after obtaining the real-time state parameter of the battery, the method further comprises: in response to the remaining energy being less than a second threshold and the discharge driving capability being less than a third threshold, determining that the real-time state parameter does not meet the preset state parameter; and in response to the remaining energy being greater than or equal to the second threshold or the discharge driving capability being greater than or equal to the third threshold, determining that the real-time state parameter meets the preset state parameter.

[0066] The second threshold and the third threshold described above can be set in advance by a user to determine whether the real-time state parameter meets the preset state parameter. The specific values of the second threshold and the third threshold can be set by the user according to actual needs, and are not specifically limited in this embodiment. The second threshold can be 20% of the remaining power, but is not limited to this, and can also be 15% of the remaining power, 30% of the remaining power, and the third threshold can be 40 kW, but is not limited to this, and can also be 30 kW, 50 kW, and the like.

[0067] In an optional embodiment, in the case where the real-time state parameter is obtained, the remaining energy can be compared with the second threshold, and the discharge driving capability can be compared with the third threshold. In the case where the remaining energy is less than the second threshold and the discharge driving capability is less than the third threshold, it can be determined that the real-time state parameter does not meet the preset state parameter. In the case where the remaining energy is greater than or equal to the second threshold, or the discharge driving capability is greater than or equal to the third threshold, it can be determined that the real-time state parameter meets the preset state parameter.

[0068] It should be noted that when the power battery has low power, there is usually a low power charging reminder. For smart phones, this threshold value is generally set to 20% by major manufacturers. By setting the SOC threshold value of the driving capability prompt to 20%, the low power reminder function can be interacted to a certain extent, the probability of the driving capability prompt being low is reduced, and the driving experience is improved. When the discharge capability of the power battery decreases to a certain value, the driving capability of the electric drive system will decrease significantly. The same power may have a large difference in power performance when reacted to different vehicles. Even if the same power and the same vehicle, different drivers may have different driving experiences. In the case where the real-time state parameter does not meet the preset state parameter, it is determined that the allowable capability of the battery is much smaller than the theoretical value, and therefore it can be determined that the battery capability is abnormal.

[0069] Optionally, in response to the motor driving capability not meeting the motor theoretical driving capability or the real-time state parameter not meeting the preset state parameter, a prompt information is output, including: in response to the motor driving capability not meeting the motor theoretical driving capability or the real-time state parameter not meeting the preset state parameter, determining whether the prompt information meets an arbitration condition, wherein the arbitration condition is used to represent a condition for outputting the prompt information; in response to the prompt information meeting the arbitration condition, outputting the prompt information; and in response to the prompt information not meeting the arbitration condition, prohibiting the output of the prompt information.

[0070] The arbitration condition described above is used to determine whether to output the prompt information, wherein the arbitration condition can include but is not limited to whether the driving system of the vehicle is high-voltage powered, whether the power system of the vehicle fails, and whether the duration of the prompt information exceeds a preset time.

[0071] In an optional embodiment, in a case where it is determined that the motor driving capability does not meet the motor theoretical driving capability or the real-time state parameter does not meet the preset state parameter, it can be first determined whether the prompt information meets the arbitration condition. For example, it can be first determined whether the driving system of the vehicle is high-voltage powered on, whether the power system of the vehicle is faulty, in a case where the driving system of the vehicle is high-voltage powered on and the power system of the vehicle is not faulty, and the duration of the prompt information exceeds the preset time, it can be determined that the prompt information meets the arbitration condition, otherwise, in a case where the driving system of the vehicle is not high-voltage powered on, or the power system of the vehicle is faulty, or the duration of the prompt information does not exceed the preset time, it can be determined that the prompt information does not meet the arbitration condition.

[0072] In another optional embodiment, in a case where it is determined that the prompt information meets the arbitration condition, the prompt information can be output, and in a case where the prompt information does not meet the arbitration condition, the output of the prompt information can be prohibited.

[0073] It should be noted that the completion of high-voltage powering on of the driving system indicates that the driver can drive the vehicle at any time, or in other words, the driver has a driving intention, at this time, the next step of continuing to arbitrate whether to prompt is entered. Otherwise, no prompt is made, because the state reminder involved in the present embodiment only has practical significance during driving, and it is unnecessary to make a prompt when the driving system is not high-voltage powered on. The positioning of the limited driving capability is a kind of state reminder, not a fault alarm. The triggering reasons are many, which can be a fault, or a driving habit or driving environment. When the power system fails, resulting in limited driving capability, the fault should be prioritized to troubleshoot, and after the fault is resolved, the problem of limited driving capability can no longer exist. Therefore, when the power system fails, no prompt of limited driving capability is made.

[0074] Optionally, determining whether the prompt information meets the arbitration condition comprises: in response to the motor driving capability not meeting the motor theoretical driving capability or the real-time state parameter not meeting the preset state parameter, controlling the electric drive system to be high-voltage powered on; in response to the completion of high-voltage powering on of the electric drive system, determining whether the power system of the vehicle is faulty; in response to the power system not being faulty, determining an effective time of the prompt information, wherein the effective time is used to represent the duration of the motor driving capability not meeting the motor theoretical driving capability or the real-time state parameter not meeting the preset state parameter; in response to the effective time being greater than or equal to a preset time, determining that the prompt information meets the arbitration condition; and in response to the electric drive system not being high-voltage powered on, or the power system being faulty, or the effective time being less than the preset time, determining that the prompt information does not meet the arbitration condition.

[0075] The preset time can be set by the user in advance to determine whether the prompt information meets the arbitration condition. The specific duration is not limited in the embodiment, and can be set by the user according to actual needs. For example, the preset time can be 2 seconds, but is not limited to this, and can also be 1 second, 3 seconds, etc.

[0076] In an optional embodiment, in a case where the motor driving capability does not meet the motor theoretical driving capability or the real-time state parameter does not meet the preset state parameter, the electric drive system can be controlled to be powered on at high voltage. In a case where the electric drive system is powered on at high voltage, it can be determined whether the power system of the vehicle fails. In a case where the power system does not fail, the effective time of the prompt information is determined. In a case where the effective time is greater than or equal to the preset time, it can be determined that the prompt information meets the arbitration condition.

[0077] In another optional embodiment, in a case where the electric drive system is not powered on at high voltage, or the power system fails, or the effective time is less than the preset time, it can be determined that the prompt information does not meet the arbitration condition.

[0078] It should be noted that when the signal effective time exceeds 2 seconds, the related human-computer interaction prompt is performed again, because the reason for the reduction of the system capability is relatively complex. There is a possibility of certain fluctuations. On the one hand, the unnecessary prompt frequency can be reduced to reduce the panic of the driver, and on the other hand, the false triggering can be prevented.

[0079] Optionally, after the prompt information is output, the method further includes: obtaining a power mode of the vehicle; determining whether the prompt information meets a release arbitration condition based on the power mode, wherein the release arbitration condition is used to represent a condition for stopping outputting the prompt information; in response to the prompt information meeting the release arbitration condition, stopping outputting the prompt information; and in response to the prompt information not meeting the release arbitration condition, continuing to output the prompt information.

[0080] The power mode can include but is not limited to a key on mode and a key off mode. The release arbitration condition can include but is not limited to a change of the power mode of the vehicle from the key on mode to the key off mode.

[0081] In an optional embodiment, after the prompt information is output, the power mode of the vehicle can be determined, and whether the prompt information meets the release arbitration condition can be determined based on the power mode of the vehicle. In a case where the prompt information meets the release arbitration condition, the output of the prompt information is stopped. In a case where the prompt information does not meet the release arbitration condition, the output of the prompt information is continued.

[0082] Optionally, based on the power mode, determining whether the prompt information meets the arbitration release condition comprises: in response to the power mode being the power-on mode, determining that the prompt information does not meet the arbitration release condition; and in response to the power mode being switched from the power-on mode to the power-off mode, determining that the prompt information meets the arbitration release condition.

[0083] In an optional embodiment, in a case where the power mode is the power-on mode, it can be determined that the prompt information does not meet the arbitration release condition, and in a case where the power mode is switched from the power-on mode to the power-off mode, it can be determined that the prompt information meets the arbitration release condition.

[0084] FIG. 2 is a flowchart of an optional processing method of driving capability according to an embodiment of the present disclosure, as shown in FIG. 2, the method comprises the following steps:

[0085] Step S201, capability calculation link: determining whether the driving capability is less than a preset driving capability value, if yes, proceeding to step S202, if no, proceeding to step S206;

[0086] In the step S201, the driving system capability is calculated first, when the driving system capability decays to a low enough level, the preliminary condition for triggering the prompt is met, and the next link is entered. If the system capability does not decay to a low enough level, the detection is performed periodically.

[0087] Step S202, prompt effective arbitration: determining whether the prompt information meets the arbitration condition, if yes, proceeding to step S203, if no, returning to step S201;

[0088] In the step S202, the prompt signal does not trigger the human-computer interaction prompt immediately, but needs to meet some conditions before the prompt is performed. When the arbitration condition is met, the human-computer interaction prompt is performed. If the prompt signal does not meet the arbitration condition, the arbitration judgment is performed periodically.

[0089] Step S203, human-computer interaction prompt: outputting the human-computer interaction prompt information;

[0090] In the step S203, the prompt signal triggers the related reminder of the human-computer interaction after the arbitration in the previous step. The related reminder includes: the instrument end lighting prompt icon, the instrument end issuing the text and sound prompt, the state prompt being pushed to the mobile phone APP client remotely, the cloud server, and the storage fault code.

[0091] Step S204, prompt arbitration release: determining whether the prompt information meets the arbitration release condition, if yes, proceeding to step S205, if no, returning to step S203;

[0092] In the step S204, after the human-computer interaction prompt is triggered, the arbitration release condition judgment is performed, and when the prompt release condition is met, the human-computer interaction prompt is released. Otherwise, the periodic prompt of the human-computer interaction is still performed.

[0093] Step S205, human-computer interaction prompt release: stop outputting human-computer interaction prompt information;

[0094] Step S206, periodically calculate driving capability, and enter step S201.

[0095] Figure 3 is a flow chart of an optional processing method based on motor end and battery end driving capability according to an embodiment of the present disclosure, as shown in Figure 3, the method comprises the following steps:

[0096] Motor end judgment:

[0097] Step S301, driving motor identification, speed conversion;

[0098] Step S302, based on external characteristics and other parameters, obtain the theoretical total driving capability of each drive wheel;

[0099] Step S303, obtain the actual total required capability of each drive motor in real time;

[0100] Step S304, motor required capability is much smaller than the theoretical value, enter step S308;

[0101] Battery end judgment:

[0102] Step S305, obtain the discharge allowable capability of the current battery and the remaining energy;

[0103] Step S306, determine that the remaining energy is less than a certain value;

[0104] Step S307, determine that the battery discharge allowable capability is less than a certain value;

[0105] Step S308, determine that the driving system high voltage power-on is completed, and the power system is fault-free, and the prompt information lasts for a certain time;

[0106] Step S309, output human-computer interaction prompt.

[0107] The embodiment introduces a driving capability control and prompt method. The method is based on various parameters, real-time calculation and updating system capability, comparing it with the system capability in ideal state, judging the attenuation degree of system driving capability, and then issuing relevant human-computer interaction prompts. The method is suitable for extended-range hybrid electric vehicles and pure electric vehicles. The advantages are as follows:

[0108] The system capacity of the motor and the battery is decoupled, facilitating calibration and testing, facilitating multi-platform expansion, and improving the adaptability and flexibility of the system. Without being limited to the comparison of torque, power is also included in the relevant logical calculation, thereby avoiding zero error. Based on the SOC threshold, the discharge power of the battery is calibrated in a targeted manner to adapt to the popularization and application in cold regions. The prompts of human-computer interaction make logical arbitration of intervention and exit, reducing the frequency of false positives and reducing the panic of the driver.

[0109] Embodiment 2

[0110] According to another aspect of the embodiments of the present disclosure, a processing device for vehicle driving capability is also provided. The electric drive system of the vehicle includes at least one driving motor and a battery. FIG. 4 is a schematic diagram of a processing device for vehicle driving capability according to an embodiment of the present disclosure. As shown in FIG. 4, the device includes: an acquisition module 42 configured to acquire a real-time vehicle speed of the vehicle and a real-time state parameter of the battery, wherein the real-time state parameter includes a discharge driving capability and a remaining energy; a determination module 44 configured to determine a motor driving capability and a motor theoretical driving capability of the vehicle based on the real-time vehicle speed, wherein the motor driving capability is used to represent the driving capability of the driving motor corresponding to the real-time vehicle speed under the actual operating state and environmental factors of the vehicle, and the motor theoretical driving capability is used to represent the driving capability of the driving motor corresponding to the real-time vehicle speed under the fault-free state of the electric drive system; and an output module 46 configured to output a prompt information in response to the motor driving capability not satisfying the motor theoretical driving capability or the real-time state parameter not satisfying a preset state parameter, wherein the prompt information is used to prompt that the driving capability of the electric drive system is limited, and the preset state parameter is used to represent the state parameter of the battery under the fault-free state of the electric drive system.

[0111] Optionally, the determination module includes: a first determination unit configured to determine a transmission ratio of each driving motor to a wheel end of the vehicle; a second determination unit configured to determine a target speed of each driving motor based on the real-time vehicle speed and the transmission ratio of each driving motor; a third determination unit configured to determine the motor theoretical driving capability based on the target speed of each driving motor and an external characteristic curve map of the driving motor; and a fourth determination unit configured to determine the motor driving capability based on the target speed of each driving motor and a system temperature.

[0112] Optionally, the third determination unit includes: a first determination sub-unit configured to determine an external characteristic capability of each driving motor from the external characteristic curve map of the driving motor based on the target speed of each driving motor; and a first summary sub-unit configured to summarize the external characteristic capability of each driving motor based on a power system configuration of the at least one driving motor to obtain the motor theoretical driving capability.

[0113] Optionally, the fourth determining unit comprises: a second determining subunit, configured to determine the real-time driving capability of each driving motor based on the target rotating speed of each driving motor, the system temperature and the platform voltage; and a second aggregating subunit, configured to aggregate the real-time driving capability of each driving motor based on the power system configuration of the at least one driving motor to obtain the motor driving capability.

[0114] Optionally, after determining the motor driving capability and the motor theoretical driving capability of the vehicle based on the real-time vehicle speed, the determining module further comprises: an obtaining unit, configured to obtain a product of the motor theoretical driving capability and a first preset value to obtain a first threshold; a fifth determining unit, configured to determine that the motor driving capability does not meet the motor theoretical driving capability in response to the motor driving capability being less than the first threshold; and a sixth determining unit, configured to determine that the motor driving capability meets the motor theoretical driving capability in response to the motor driving capability being greater than or equal to the first threshold.

[0115] Optionally, after obtaining the real-time state parameter of the battery, the apparatus further comprises: a first parameter determining module, configured to determine that the real-time state parameter does not meet the preset state parameter in response to the residual energy being less than a second threshold and the discharging driving capability being less than a third threshold; and a second parameter determining module, configured to determine that the real-time state parameter meets the preset state parameter in response to the residual energy being greater than or equal to the second threshold or the discharging driving capability being greater than or equal to the third threshold.

[0116] Optionally, the output module comprises: a seventh determining unit, configured to determine whether the prompt information meets an arbitration condition in response to the motor driving capability not meeting the motor theoretical driving capability or the real-time state parameter not meeting the preset state parameter, wherein the arbitration condition is used to represent a condition for outputting the prompt information; an output unit, configured to output the prompt information in response to the prompt information meeting the arbitration condition; and a prohibiting unit, configured to prohibit outputting the prompt information in response to the prompt information not meeting the arbitration condition.

[0117] Optionally, the seventh determining unit comprises: a control subunit, configured to control the electric drive system to be powered on at high voltage in response to the motor driving capability not meeting the motor theoretical driving capability or the real-time state parameter not meeting the preset state parameter; a third determining subunit, configured to determine whether the power system of the vehicle has a fault in response to the electric drive system being powered on at high voltage being completed; a fourth determining subunit, configured to determine an effective time of the prompt information in response to the power system not having the fault, wherein the effective time is used to represent a duration of the motor driving capability not meeting the motor theoretical driving capability or the real-time state parameter not meeting the preset state parameter; a fifth determining subunit, configured to determine that the prompt information meets the arbitration condition in response to the effective time being greater than or equal to a preset time; and a sixth determining subunit, configured to determine that the prompt information does not meet the arbitration condition in response to the electric drive system not being powered on at high voltage, the power system having the fault, or the effective time being less than the preset time.

[0118] Optionally, after outputting the prompt information, the output module further comprises: an acquisition subunit configured to acquire a power mode of the vehicle; a seventh determination subunit configured to determine whether the prompt information satisfies an arbitration release condition based on the power mode, wherein the arbitration release condition is used to represent a condition for stopping outputting the prompt information; a stop subunit configured to stop outputting the prompt information in response to the prompt information satisfying the arbitration release condition; and an output subunit configured to continue outputting the prompt information in response to the prompt information not satisfying the arbitration release condition.

[0119] Optionally, the seventh determination subunit is further configured to: determine that the prompt information does not satisfy the arbitration release condition in response to the power mode being a power-on mode; and determine that the prompt information satisfies the arbitration release condition in response to the power mode being switched from the power-on mode to a power-off mode.

[0120] Embodiment 3

[0121] Embodiments of the present disclosure further provide a vehicle, comprising: a memory storing an executable program; and a processor configured to run the program, wherein the program performs the method in the embodiments of the present disclosure when running.

[0122] Embodiment 4

[0123] Embodiments of the present disclosure further provide a computer-readable storage medium, which comprises a stored executable program, wherein the computer-readable storage medium controls a device where the computer-readable storage medium is located to perform the method in the embodiments of the present disclosure when the executable program runs.

[0124] Embodiment 5

[0125] Embodiments of the present disclosure further provide a computer program product, which comprises a computer program, wherein the computer program implements the method in the embodiments of the present disclosure when executed by a processor.

[0126] Embodiment 6

[0127] Embodiments of the present disclosure further provide a computer program product, which comprises a non-volatile computer-readable storage medium for storing a computer program, wherein the computer program implements the method in the embodiments of the present disclosure when executed by a processor.

[0128] Embodiment 7

[0129] Embodiments of the present disclosure further provide a computer program, which implements the method in the embodiments of the present disclosure described above when executed by a processor.

[0130] The above-mentioned serial numbers of the embodiments of the present disclosure are only for description, and do not represent the advantages or disadvantages of the embodiments.

[0131] In the above-described embodiments of the present disclosure, the description of each embodiment focuses on different aspects, and the parts not described in detail in a certain embodiment can be referred to the relevant description of other embodiments.

[0132] In several embodiments provided by the present disclosure, it should be understood that the disclosed technology can be implemented in other manners. The described embodiments of the device are merely exemplary, and the unit division is merely logical function division, and there can be other division manners in actual implementation. For example, a plurality of units or components can be combined or integrated into another system, or some features can be ignored or not executed. In addition, the displayed or discussed mutual couplings or direct couplings or communication connections can be indirect couplings or communication connections through some interfaces, and electrical or mechanical couplings or communication connections.

[0133] The units described as separate components can or can not be physically separate, and the components displayed as units can or can not be physical units, i.e., can be located in one place, or can be distributed on a plurality of units. Some or all of the units can be selected according to actual needs to achieve the purposes of the embodiments of the present disclosure.

[0134] In addition, each functional unit in the various embodiments of the present disclosure can be integrated in a processing unit, or each unit can exist physically, or two or more units can be integrated in one unit. The integrated unit can be implemented in the form of hardware, or in the form of a software functional unit.

[0135] When the integrated unit is implemented in the form of a software functional unit and sold or used as an independent product, it can be stored in a computer-readable storage medium. Based on such an understanding, the technical solutions of the present disclosure essentially, or the part that contributes to the prior art, or all or a part of the technical solutions can be embodied in the form of a software product. The computer software product is stored in a storage medium, and includes several instructions for causing a computer device (which can be a personal computer, a server, or a network device, etc.) to execute all or part of the steps of the methods described in the various embodiments of the present disclosure. The foregoing storage medium includes: U disk, read-only memory (ROM, Read-Only Memory), random access memory (RAM, Random Access Memory), mobile hard disk, magnetic disk or optical disk, and various other media that can store program codes.

[0136] The above only describes the preferred embodiments of the present disclosure, and it should be pointed out that, for those skilled in the art, without departing from the principles of the present disclosure, a number of improvements and refinements can be made, and these improvements and refinements should be considered as the protection scope of the present disclosure.

Claims

A processing method of driving capability of a vehicle, an electric drive system of the vehicle comprising at least one driving motor and a battery, the method comprising: obtaining a real-time vehicle speed of the vehicle and a real-time state parameter of the battery, wherein the real-time state parameter comprises a discharging driving capability and a residual energy; determining a motor driving capability of the vehicle and a motor theoretical driving capability based on the real-time vehicle speed, wherein the motor driving capability is used to represent a driving capability of the driving motor corresponding to the real-time vehicle speed under actual operating conditions and environmental factors of the vehicle, and the motor theoretical driving capability is used to represent a driving capability of the driving motor corresponding to the real-time vehicle speed under a fault-free state of the electric drive system; in response to the motor driving capability not satisfying the motor theoretical driving capability or the real-time state parameter not satisfying a preset state parameter, outputting prompt information, wherein the prompt information is used to prompt that the driving capability of the electric drive system is limited, and the preset state parameter is used to represent a state parameter of the battery under the fault-free state of the electric drive system. The method of claim 1, wherein determining the motor driving capability of the vehicle and the motor theoretical driving capability based on the real-time vehicle speed comprises: determining a transmission ratio of each driving motor to a wheel end of the vehicle; determining a target speed of each driving motor based on the real-time vehicle speed and the transmission ratio of each driving motor; determining the motor theoretical driving capability based on the target speed of each driving motor and an external characteristic curve map of the driving motor; determining the motor driving capability based on the target speed of each driving motor and a system temperature. The method of claim 2, wherein determining the motor theoretical driving capability based on the target speed of each driving motor and an external characteristic curve map of the driving motor comprises: determining an external characteristic capability of each driving motor from the external characteristic curve map of the driving motor based on the target speed of each driving motor; summarizing the external characteristic capability of each driving motor to obtain the motor theoretical driving capability based on a power system configuration of the at least one driving motor. The method of claim 2, wherein determining the motor driving capability based on the target speed of each driving motor and a system temperature comprises: determining a real-time driving capability of each driving motor based on the target speed of each driving motor, a system temperature and a platform voltage; summarizing the real-time driving capability of each driving motor to obtain the motor driving capability based on a power system configuration of the at least one driving motor. after determining the motor driving capability of the vehicle and the motor theoretical driving capability based on the real-time vehicle speed, the method further comprises: The method of claim 1, wherein obtaining a product of the motor theoretical driving capability and a first preset value to obtain a first threshold value; in response to the motor driving capability being less than the first threshold value, determining that the motor driving capability does not satisfy the motor theoretical driving capability; in response to the motor driving capability being greater than or equal to the first threshold value, determining that the motor driving capability satisfies the motor theoretical driving capability. after obtaining the real-time state parameter of the battery, the method further comprises: The method of claim 1, wherein ​ determining that the real-time state parameter does not meet the preset state parameter in response to the remaining energy being less than a second threshold value and the discharge driving capability being less than a third threshold value; determining that the real-time state parameter meets the preset state parameter in response to the remaining energy being greater than or equal to the second threshold value or the discharge driving capability being greater than or equal to the third threshold value. The method for processing vehicle driving capability according to any one of claims 1 to 6, wherein, in response to the motor driving capability not meeting the motor theoretical driving capability or the real-time state parameter not meeting the preset state parameter, outputting prompt information, including: determining whether the prompt information meets an arbitration condition in response to the motor driving capability not meeting the motor theoretical driving capability or the real-time state parameter not meeting the preset state parameter, wherein the arbitration condition is used to represent a condition for outputting prompt information; outputting the prompt information in response to the prompt information meeting the arbitration condition; inhibiting the output of the prompt information in response to the prompt information not meeting the arbitration condition. The method of claim 7, wherein, determining whether the prompt information meets an arbitration condition, including: controlling the electric drive system to perform high-voltage power-up in response to the motor driving capability not meeting the motor theoretical driving capability or the real-time state parameter not meeting the preset state parameter; determining whether a power system of the vehicle has failed in response to the electric drive system completing high-voltage power-up; determining an effective time of the prompt information in response to the power system not having failed, wherein the effective time is used to represent a duration of the motor driving capability not meeting the motor theoretical driving capability or the real-time state parameter not meeting the preset state parameter; determining that the prompt information meets the arbitration condition in response to the effective time being greater than or equal to a preset time; determining that the prompt information does not meet the arbitration condition in response to the electric drive system not completing high-voltage power-up, the power system failing, or the effective time being less than the preset time. The method for processing vehicle driving capability according to any one of claims 1 to 6, wherein, after outputting the prompt information, the method further includes: obtaining a power supply mode of the vehicle; determining whether the prompt information meets a de-arbitration condition based on the power supply mode, wherein the de-arbitration condition is used to represent a condition for stopping the output of prompt information; stopping the output of the prompt information in response to the prompt information meeting the de-arbitration condition; continuing to output the prompt information in response to the prompt information not meeting the de-arbitration condition. The method of claim 9, wherein, determining whether the prompt information meets a de-arbitration condition based on the power supply mode, including: determining that the prompt information does not meet the de-arbitration condition in response to the power supply mode being a power-up mode; determining that the prompt information meets the de-arbitration condition in response to the power supply mode being switched from the power-up mode to a power-down mode. A processing device for vehicle driving capability, an electric drive system of the vehicle comprising at least one driving motor and a battery, the device comprising: an acquisition module configured to acquire a real-time vehicle speed of the vehicle and a real-time state parameter of the battery, wherein the real-time state parameter comprises a discharge driving capability and a remaining energy; determining, based on the real-time vehicle speed, a motor driving capability of the vehicle and a motor theoretical driving capability, wherein the motor driving capability is used to represent a driving capability of a driving motor corresponding to the real-time vehicle speed under actual operating conditions and environmental factors of the vehicle, and the motor theoretical driving capability is used to represent a driving capability of the driving motor corresponding to the real-time vehicle speed under a fault-free state of the electric drive system the driving capability of the driving motor corresponding to the real-time vehicle speed under the fault-free state of the electric drive system; outputting prompt information in response to the motor driving capability not satisfying the motor theoretical driving capability or the real-time state parameter not satisfying a preset state parameter, wherein the prompt information is used to prompt that the driving capability of the electric drive system is limited, and the preset state parameter is used to represent a state parameter of the battery under the fault-free state of the electric drive system. A vehicle comprises: a memory storing an executable program; a processor configured to execute the program, wherein the program, when executed, performs the method of any one of claims 1 to 10. A computer-readable storage medium comprising a stored executable program, wherein, A device in which the storage medium is located is controlled to perform the method of any one of claims 1 to 10 when the executable program is executed. A computer program product comprising a computer program which, when executed by a processor, implements the method of any one of claims 1 to 10.

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