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

Abstract

The application discloses a kind of processing method, device, storage medium and vehicle of vehicle driving ability, and wherein, the method relates to vehicle control field, comprising: obtaining the real-time speed of vehicle, and the real-time state parameter of battery;Based on real-time speed, determine the motor driving ability and motor theoretical driving ability of vehicle;In response to motor driving ability does not satisfy motor theoretical driving ability, or real-time state parameter does not satisfy preset state parameter, output prompt information.The application solves the technical problem that the calculation accuracy of the driving ability of the driving system of the vehicle in the prior art is low.

Description

TECHNICAL FIELD

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

[0002] When the electric vehicle is running daily, sometimes the driving capability is limited, resulting in the power of the vehicle being reduced, the acceleration being powerless, and the vehicle speed being unable to reach the expected speed of the driver. When the problem occurs, if the driver still drives according to the previous mode, the limitation of the driving capability may be aggravated or the time of the limitation may be prolonged. When the driver tries 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, based on improving the driving experience of the driver or from the perspective of complying with the national standards, it is necessary to remind the driver in time when the driving capability is limited. However, the current prompt of the driving capability of the vehicle is mainly through the calculation of the motor-battery system or only the 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 leads to 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. SUMMARY

[0005] The embodiments of the present application provide a vehicle driving capability processing method and device, a storage medium and a 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.

[0006] According to an aspect of some embodiments of the present application, 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 discharging driving capability and a residual energy; determining 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 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 a prompt information 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 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.

[0007] Optionally, the determining of the motor driving capability and the motor theoretical driving capability of the vehicle 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.

[0008] 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.

[0009] 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.

[0010] Optionally, after the determining of the motor driving capability and the motor theoretical driving capability of the vehicle 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 meet the motor theoretical driving capability in response to that the motor driving capability is less than the first threshold; and determining that the motor driving capability meets the motor theoretical driving capability in response to that the motor driving capability is greater than or equal to the first threshold.

[0011] 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.

[0012] 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.

[0013] 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 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 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.

[0014] 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 the output of the prompt information; and in response to the prompt information not meeting the release arbitration condition, continuing to output the prompt information.

[0015] 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.

[0016] According to another aspect of the embodiments of the present application, a processing device for vehicle driving capability is also provided. The electric drive system of the vehicle comprises at least one driving motor and a battery. The device comprises: an obtaining module, configured to obtain 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 residual energy; a determining module, 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 of the vehicle and the environmental factors, 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 that the motor driving capability does not meet the motor theoretical driving capability or the real-time state parameter does not meet 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.

[0017] According to another aspect of the embodiments of the present application, a vehicle is also provided. The vehicle comprises a memory storing an executable program and a processor configured to execute the program, wherein the program is executed to perform the method in the embodiments of the present application.

[0018] According to another aspect of the embodiments of the present application, a computer readable storage medium is also provided. The computer readable storage medium comprises a stored executable program, wherein the executable program is executed to control the device where the computer readable storage medium is located to perform the method in the embodiments of the present application.

[0019] According to another aspect of the embodiments of the present application, a computer program product is also provided. The computer program product comprises a computer program, and the computer program is executed by a processor to implement the method in the embodiments of the present application.

[0020] According to another aspect of the embodiments of the present application, a computer program product is also provided. The computer program product comprises a non-volatile computer readable storage medium storing a computer program, and the computer program is executed by a processor to implement the method in the embodiments of the present application.

[0021] According to another aspect of the embodiments of the present application, a computer program is also provided. The computer program is executed by a processor to implement the method in the embodiments of the present application.

[0022] In the embodiment of the present application, the real-time vehicle speed and the real-time state parameter of the battery are acquired, 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 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 zero division 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

[0023] The accompanying drawings, which are included to provide a further understanding of the present application and are incorporated in and constitute a part of this application, illustrate embodiments of the present application and serve to explain the present application. In the drawings:

[0024] Figure 1 is a flowchart of a vehicle driving capability processing method according to an embodiment of the present application;

[0025] Figure 2 is a flowchart of an optional driving capability processing method according to an embodiment of the present application;

[0026] Figure 3 is a flowchart of an optional motor end and battery end driving capability processing method according to an embodiment of the present application;

[0027] Figure 4 is a schematic diagram of a vehicle driving capability processing device according to an embodiment of the present application. DETAILED DESCRIPTION

[0028] In order to enable persons skilled in the art to better understand the present application, the technical solutions in the embodiments of the present application will be described clearly and completely below with reference to the accompanying drawings of the embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, but not all the embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by persons skilled in the art without creative labor should fall within the protection scope of the present application.

[0029] It is to be understood that the terms "first", "second", and the like used in the description and the claims of the present application as well as the above-described drawings do not necessarily have to connote any ordinal, sequential or priority relationship, and are merely used to differentiate and distinguish a reference from another reference. It is to be understood that the terms "comprising", "having", "including", and the like, when used in the present specification, specify the presence of stated features, steps, or components but do not preclude the presence or addition of one or more other features, steps, or components. It is to be understood that the phraseology or terminology employed herein, such as "comprising", "including", "carrying", "containing" or the like, are typically intended to be understood in an inclusive sense, as opposed to an exclusive sense.

[0030] Embodiment 1

[0031] According to an embodiment of the present application, a method for processing driving capability of a vehicle is provided. It is to be understood that the steps shown in the flowcharts of the 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 flowcharts, in some cases, the steps shown or described herein can be executed in an order different from that shown herein.

[0032] Figure 1 is a flowchart of a method for processing driving capability of a vehicle according to an embodiment of the present application, the electric drive system of the vehicle comprises at least one driving motor and a battery, as shown in Figure 1 the method comprises the following steps:

[0033] In step S102, real-time vehicle speed and real-time state parameters of the battery are obtained, wherein the real-time state parameters include discharge driving capability and residual energy.

[0034] 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 driving motor and a battery, and the electric drive system does not have a power separation device, i.e., the physical connection between the driving motor and the driving 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 residual charge amount (state of charge) of the battery. The configuration of the driving system comprising at least one driving 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.

[0035] 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.

[0036] 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.

[0037] 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 at the current vehicle speed, which is calculated by the vehicle controller (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 at different vehicle speeds under 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.

[0038] 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.

[0039] 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.

[0040] 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.

[0041] 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.

[0042] 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.

[0043] 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.

[0044] 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.

[0045] 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.

[0046] In the embodiment of the present application, 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, the technical effect of improving the calculation accuracy of the driving capability of the driving system of the vehicle 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.

[0047] Optionally, based on the real-time vehicle speed, the motor driving capability and the motor theoretical driving capability of the vehicle are determined, including: 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.

[0048] 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, wherein the unit of n is n / min:

[0049]

[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:

[0056]

[0057] 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.

[0058] 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.

[0059] 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.

[0060] In an optional embodiment, the motor driving capability a can be obtained by the following formula:

[0061]

[0062] 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.

[0063] 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.

[0064] 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.

[0065] 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, and in this embodiment, it is not specifically limited, and can be 0.2, but is not limited thereto, and can also be 0.3, 0.1, etc.

[0066] In an optional embodiment, after obtaining the motor driving capability and the motor theoretical driving capability, first, a product of the motor theoretical driving capability and a first preset value can be obtained to obtain a first threshold, and then the motor driving capability can be compared with the first threshold. In the case where 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, and in the case where 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 where the motor driving capability does not meet the motor theoretical driving capability, it can be determined that the motor driving capability is abnormal.

[0067] 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.

[0068] 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.

[0069] 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.

[0070] 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.

[0071] 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.

[0072] 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.

[0073] 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 completed, 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.

[0074] 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.

[0075] It should be noted that the completion of the 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 and the driving capability is limited, the fault should be checked first, and after the fault is eliminated, the problem of limited driving capability can no longer exist. Therefore, when the power system fails, no prompt of the limited driving capability is made.

[0076] 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 high-voltage powering on of the electric drive system being completed, 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 high-voltage powering on of the electric drive system not being completed, 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.

[0077] 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.

[0078] 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.

[0079] 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.

[0080] 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 fluctuation. 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.

[0081] 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.

[0082] 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.

[0083] 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.

[0084] Optionally, based on the power supply mode, it is determined whether the prompt information meets the arbitration release condition, including: in response to the power supply mode being the power-on mode, it is determined that the prompt information does not meet the arbitration release condition; and in response to the power supply mode being switched from the power-on mode to the power-off mode, it is determined that the prompt information meets the arbitration release condition.

[0085] In an optional embodiment, in the case where the power supply mode is the power-on mode, it can be determined that the prompt information does not meet the arbitration release condition, and in the case where the power supply 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.

[0086] Figure 2 An optional flowchart of a processing method of driving capability according to an embodiment of the application is shown in FIG. 2, which includes the following steps: Figure 2

[0087] Step S201, capability calculation link: it is determined whether the driving capability is less than a preset driving capability value, if yes, proceed to step S202, and if no, proceed to step S206;

[0088] Firstly, the calculation of the electric drive system capability can be performed, and when the driving system capability decays to a low enough level, the preliminary condition for triggering the prompt is met, and at this time, the next link is entered. If the system capability does not decay to a low enough level, the detection is periodically performed.

[0089] Step S202, prompt effective arbitration: it is determined whether the prompt information meets the arbitration condition, if yes, proceed to step S203, and if no, return to step S201;

[0090] The prompt signal does not immediately trigger the human-computer interaction prompt at the effective time, and needs to meet some conditions to perform the prompt. 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 periodically performed.

[0091] Step S203, human-computer interaction prompt: output the human-computer interaction prompt information;

[0092] After the arbitration of the prompt signal in the previous step, the human-computer interaction related reminder is triggered. This includes: the instrument end brightens the prompt icon, the instrument end issues a text and sound prompt, the state prompt is pushed to the mobile phone APP client remotely, the cloud server, and the fault code is stored.

[0093] Step S204, prompt arbitration release: it is determined whether the prompt information meets the arbitration release condition, if yes, proceed to step S205, and if no, return to step S203;

[0094] ​After a human-computer interaction prompt is triggered, a condition for prompt cancellation will be determined. If the condition is met, the human-computer interaction prompt will be cancelled. Otherwise, the periodic human-computer interaction prompt will continue.

[0095] Step S205, Human-computer interaction prompt cancellation: Stop outputting human-computer interaction prompt information;

[0096] Step S206, periodically calculate the driving capability, and proceed to step S201.

[0097] Figure 3 This is a flowchart of an optional processing method based on the driving capabilities of the motor end and the battery end according to an embodiment of the present invention, such as... Figure 3 As shown, the method includes the following steps:

[0098] Motor end judgment:

[0099] Step S301: Drive motor identification and speed conversion;

[0100] Step S302: Based on external characteristics and other parameters, obtain the theoretical total driving capability of each drive wheel;

[0101] Step S303: Obtain the actual total required capacity of each drive motor in real time;

[0102] Step S304: The required capacity of the motor is much less than the theoretical value, proceed to step S308;

[0103] Battery side judgment:

[0104] Step S305: Obtain the current battery's allowable discharge capacity and remaining energy;

[0105] Step S306: Determine that the remaining energy is less than a specific value;

[0106] Step S307: Determine that the battery's allowable discharge capacity is less than a specific value;

[0107] Step S308: Confirm that the high voltage power-on of the drive system is complete, the power system is fault-free, and the prompt message continues for a specific time;

[0108] Step S309: Output human-computer interaction prompts.

[0109] This embodiment introduces a method for controlling and prompting driving capability. Based on various parameters, this method calculates and updates the system capability in real time, compares it with the system capability under ideal conditions, determines the degree of degradation in the system's driving capability, and then issues relevant human-machine interaction prompts. This method is applicable to range-extended hybrid electric vehicles and pure electric vehicles. Its advantages are reflected in the following aspects:

[0110] Decoupling the system capabilities of the motor and battery facilitates calibration and testing, enables multi-platform expansion, and improves the system's adaptability and flexibility. It doesn't rely solely on torque comparisons; power is also incorporated into relevant logical calculations, thus avoiding division-to-zero errors. Based on the SOC threshold, the battery's discharge power is specifically calibrated to adapt to applications in cold regions. Human-machine interaction prompts incorporate intervention and exit logic arbitration, reducing false alarms and minimizing driver panic.

[0111] Example 2

[0112] According to another aspect of the present invention, a processing device for vehicle driving capability is also provided, wherein the electric drive system of the vehicle includes at least one drive motor and a battery. Figure 4 This is a schematic diagram of a vehicle driving capability processing device according to an embodiment of the present invention, as shown below. Figure 4 As shown, the device includes: an acquisition module 42, used to acquire the vehicle's real-time speed and the battery's real-time state parameters, wherein the real-time state parameters include: discharge drive capability and remaining energy; a determination module 44, used to determine the vehicle's motor drive capability and theoretical motor drive capability based on the real-time vehicle speed, wherein the motor drive capability characterizes the drive capability of the drive motor corresponding to the real-time vehicle speed under the vehicle's actual operating state and environmental factors, and the theoretical motor drive capability characterizes the drive capability of the drive motor corresponding to the real-time vehicle speed under a fault-free electric drive system; and an output module 46, used to output a prompt message in response to the motor drive capability not meeting the theoretical motor drive capability, or the real-time state parameters not meeting preset state parameters, wherein the prompt message indicates that the drive capability of the electric drive system is limited, and the preset state parameters characterize the battery's state parameters under a fault-free electric drive system.

[0113] Optionally, the determining module includes: a first determining unit for determining the transmission ratio from each drive motor to the wheel end of the vehicle; a second determining unit for determining the target speed of each drive motor based on the real-time vehicle speed and the transmission ratio of each drive motor; a third determining unit for determining the theoretical driving capability of the motor based on the target speed of each drive motor and the external characteristic curve of the drive motor; and a fourth determining unit for determining the driving capability of the motor based on the target speed of each drive motor and the system temperature.

[0114] Optionally, the third determining unit includes: a first determining subunit, used to determine the external characteristic capability of each drive motor from the external characteristic curve spectrum of the drive motor based on the target speed of each drive motor; and a first summarizing subunit, used to summarize the external characteristic capability of each drive motor based on the power system configuration of at least one drive motor to obtain the theoretical driving capability of the motor.

[0115] Optionally, the fourth determining unit includes: a second determining subunit, used to determine the real-time driving capability of each drive motor based on the target speed, system temperature and platform voltage of each drive motor; and a second summarizing subunit, used to summarize the real-time driving capability of each drive motor based on the power system configuration of at least one drive motor to obtain the motor driving capability.

[0116] Optionally, after determining the vehicle's motor drive capability and theoretical motor drive capability based on real-time vehicle speed, the determining module further includes: an acquisition unit, used to acquire the product of the theoretical motor drive capability and a first preset value to obtain a first threshold; a fifth determining unit, used to determine that the motor drive capability does not meet the theoretical motor drive capability in response to the motor drive capability being less than the first threshold; and a sixth determining unit, used to determine that the motor drive capability meets the theoretical motor drive capability in response to the motor drive capability being greater than or equal to the first threshold.

[0117] Optionally, after acquiring the real-time state parameters of the battery, the device further includes: a first parameter determination module, configured to determine that the real-time state parameters do not meet the preset state parameters in response to the remaining energy being less than a second threshold and the discharge driving capability being less than a third threshold; and a second parameter determination module, configured to determine that the real-time state parameters meet the preset state parameters 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.

[0118] Optionally, the output module includes: a seventh determining unit, used to determine whether the prompt information meets the arbitration conditions in response to the motor driving capability not meeting the theoretical driving capability of the motor, or the real-time state parameters not meeting the preset state parameters, wherein the arbitration conditions are used to characterize the conditions for outputting the prompt information; an output unit, used to output the prompt information in response to the prompt information meeting the arbitration conditions; and a prohibition unit, used to prohibit the output of the prompt information in response to the prompt information not meeting the arbitration conditions.

[0119] Optionally, the seventh determining unit includes: a control subunit, used to control the electric drive system to perform high-voltage power-on in response to the motor drive capability not meeting the theoretical drive capability of the motor, or the real-time status parameters not meeting the preset status parameters; a third determining subunit, used to determine whether the vehicle's power system has malfunctioned in response to the completion of high-voltage power-on of the electric drive system; a fourth determining subunit, used to determine the effective time of the prompt information in response to the absence of a malfunction in the power system, wherein the effective time characterizes the duration during which the motor drive capability does not meet the theoretical drive capability of the motor, or the real-time status parameters do not meet the preset status parameters; a fifth determining subunit, used to determine that the prompt information meets the arbitration conditions in response to the effective time being greater than or equal to the preset time; and a sixth determining subunit, used to determine that the prompt information does not meet the arbitration conditions in response to the incomplete high-voltage power-on of the electric drive system, the occurrence of a malfunction in the power system, or the effective time being less than the preset time.

[0120] Optionally, after outputting the prompt information, the output module further includes: an acquisition subunit for acquiring the vehicle's power mode; a seventh determination subunit for determining, based on the power mode, whether the prompt information meets the arbitration release condition, wherein the arbitration release condition is used to characterize the condition for stopping the output of the prompt information; a stop subunit for stopping the output of the prompt information in response to the prompt information meeting the arbitration release condition; and an output subunit for continuing to output the prompt information in response to the prompt information not meeting the arbitration release condition.

[0121] Optionally, the seventh determining subunit is further configured to: determine that the prompt message does not meet the conditions for terminating arbitration in response to the power mode being power-on mode; and determine that the prompt message meets the conditions for terminating arbitration in response to the power mode switching from power-on mode to power-off mode.

[0122] Example 3

[0123] Embodiments of this application also provide a vehicle, including: a memory storing an executable program; and a processor for running the program, wherein the program executes the methods of various embodiments of the present invention during runtime.

[0124] Example 4

[0125] Embodiments of this application also provide a computer-readable storage medium including a stored executable program, wherein, when the executable program is running, it controls the device where the computer-readable storage medium is located to perform the methods of various embodiments of the present invention.

[0126] Example 5

[0127] Embodiments of this application also provide a computer program product, including a computer program that, when executed by a processor, implements the methods of various embodiments of the present invention.

[0128] Example 6

[0129] Embodiments of this application also provide a computer program product, including a non-volatile computer-readable storage medium for storing a computer program that, when executed by a processor, implements the methods in various embodiments of the present invention.

[0130] Example 7

[0131] Embodiments of this application also provide a computer program that, when executed by a processor, implements the methods described in the various embodiments of the present invention.

[0132] The sequence numbers of the above embodiments of the present invention are for descriptive purposes only and do not represent the superiority or inferiority of the embodiments.

[0133] In the above embodiments of the present invention, the descriptions of each embodiment have different focuses. For parts not described in detail in a certain embodiment, please refer to the relevant descriptions of other embodiments.

[0134] In the several embodiments provided in this application, it should be understood that the disclosed technical content can be implemented in other ways. The device embodiments described above are merely illustrative; for example, the division of units can be a logical functional division, and in actual implementation, there may be other division methods. For instance, multiple units or components may be combined or integrated into another system, or some features may be ignored or not executed. Furthermore, the displayed or discussed mutual coupling, direct coupling, or communication connection may be through some interfaces; the indirect coupling or communication connection between units or modules may be electrical or other forms.

[0135] The units described as separate components may or may not be physically separate. The components shown as units may or may not be physical units; that is, they may be located in one place or distributed across multiple units. Some or all of the units can be selected to achieve the purpose of this embodiment according to actual needs.

[0136] Furthermore, the functional units in the various embodiments of the present invention can be integrated into one processing unit, or each unit can exist physically separately, or two or more units can be integrated into one unit. The integrated unit can be implemented in hardware or as a software functional unit.

[0137] If the integrated unit is implemented as a software functional unit and sold or used as an independent product, it can be stored in a computer-readable storage medium. Based on this understanding, the technical solution of the present invention, in essence, or the part that contributes to the prior art, or all or part of the technical solution, can be embodied in the form of a software product. This computer software product is stored in a storage medium and includes several instructions to cause a computer device (which may be a personal computer, server, or network device, etc.) to execute all or part of the steps of the methods described in the various embodiments of the present invention. The aforementioned storage medium includes various media capable of storing program code, such as USB flash drives, read-only memory (ROM), random access memory (RAM), portable hard drives, magnetic disks, or optical disks.

[0138] The above description is only a preferred embodiment of the present invention. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the principle of the present invention, and these improvements and modifications should also be considered within the scope of protection of the present invention.

Claims

1. A method for processing vehicle driving capability, characterized in that, The electric drive system of the vehicle includes at least one drive motor and a battery, and the method includes: The vehicle's real-time speed and the battery's real-time status parameters are obtained, including discharge drive capability and remaining energy. Based on the real-time vehicle speed, the vehicle's motor drive capability and theoretical motor drive capability are determined. The motor drive capability is used to characterize the drive capability of the drive motor corresponding to the real-time vehicle speed under the actual operating state and environmental factors of the vehicle. The theoretical motor drive capability is used to characterize the drive capability of the drive motor corresponding to the real-time vehicle speed under the fault-free state of the electric drive system. In response to the motor driving capability not meeting the theoretical driving capability of the motor, or the real-time status parameters not meeting the preset status parameters, a prompt message is output, wherein the prompt message is used to indicate that the driving capability of the electric drive system is limited, and the preset status parameters are used to characterize the status parameters of the battery when the electric drive system is in a fault-free state; The configuration of the electric drive system includes at least one of the following: a distributed four-wheel drive configuration, a dual-motor four-wheel drive configuration, and a single-motor four-wheel drive configuration; Based on the real-time vehicle speed, the motor drive capability of the vehicle is determined, including: determining the transmission ratio from each drive motor to the wheel end of the vehicle; determining the target speed of each drive motor based on the real-time vehicle speed and the transmission ratio corresponding to each drive motor; and determining the motor drive capability based on the target speed of each drive motor and the system temperature, wherein each drive motor in different configurations corresponds to the system temperature. In response to the motor drive capability not meeting the theoretical drive capability of the motor, or the real-time status parameters not meeting the preset status parameters, a prompt message is output, including: controlling the electric drive system to perform high-voltage power-on in response to the motor drive capability not meeting the theoretical drive capability of the motor, or the real-time status parameters not meeting the preset status parameters; determining whether the electric drive system has malfunctioned in response to the completion of high-voltage power-on of the electric drive system; determining the effective time of the prompt message in response to the absence of a malfunction in the electric drive system, wherein the effective time is used to characterize the duration for which the motor drive capability does not meet the theoretical drive capability of the motor, or the duration for which the real-time status parameters do not meet the preset status parameters; and determining that the prompt message meets arbitration conditions in response to the effective time being greater than or equal to the preset time, and outputting the prompt message, wherein the arbitration conditions are used to characterize the conditions for outputting the prompt message.

2. The method for processing vehicle driving capability according to claim 1, characterized in that, Based on the real-time vehicle speed, the theoretical driving capability of the vehicle's motor is determined, including: Based on the target speed and external characteristic curve of each drive motor, the theoretical driving capability of the motor is determined.

3. The method for processing vehicle driving capability according to claim 2, characterized in that, Based on the target speed and external characteristic curve of each drive motor, the theoretical driving capability of the motor is determined, including: Based on the target speed of each drive motor, the external characteristic capability of each drive motor is determined from the external characteristic curve spectrum of the drive motor; Based on the configuration of the electric drive system with at least one drive motor, the external characteristic capabilities of each drive motor are summarized to obtain the theoretical driving capability of the motor.

4. The method for processing vehicle driving capability according to claim 2, characterized in that, The driving capability of each motor is determined based on its target speed and system temperature, including: The real-time driving capability of each drive motor is determined based on the target speed of each drive motor, the system temperature, and the platform voltage. Based on the configuration of the electric drive system with at least one drive motor, the real-time drive capability of each drive motor is summarized to obtain the motor drive capability.

5. The method for processing vehicle driving capability according to claim 1, characterized in that, After determining the vehicle's motor drive capability and theoretical motor drive capability based on the real-time vehicle speed, the method further includes: The first threshold is obtained by multiplying the theoretical driving capability of the motor by a first preset value. In response to the motor driving capability being less than the first threshold, it is determined that the motor driving capability does not meet the theoretical driving capability of the motor. In response to the motor driving capability being greater than or equal to the first threshold, it is determined that the motor driving capability meets the theoretical driving capability of the motor.

6. The method for processing vehicle driving capability according to claim 1, characterized in that, After obtaining the real-time status parameters of the battery, the method further includes: In response to the remaining energy being less than a second threshold and the discharge driving capability being less than a third threshold, it is determined that the real-time state parameters do not meet the preset state parameters; 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, it is determined that the real-time state parameters satisfy the preset state parameters.

7. The method for processing vehicle driving capability according to any one of claims 1 to 6, characterized in that, The method further includes: In response to the prompt message not meeting the arbitration conditions, the output of the prompt message is prohibited.

8. The method for processing vehicle driving capability according to claim 7, characterized in that, Determining that the prompt message does not meet the arbitration conditions includes: In response to the failure of the electric drive system to complete high-voltage power-on, the electric drive system malfunctioning, or the effective time being less than the preset time, it is determined that the prompt message does not meet the arbitration conditions.

9. The method for processing vehicle driving capability according to any one of claims 1 to 6, characterized in that, After outputting the prompt message, the method further includes: Obtain the power mode of the vehicle; Based on the power mode, determine whether the prompt message meets the arbitration release condition, wherein the arbitration release condition is used to characterize the condition for stopping the output of the prompt message; In response to the prompt message meeting the conditions for terminating arbitration, the output of the prompt message is stopped; If the prompt message does not meet the conditions for terminating arbitration, the prompt message will continue to be output.

10. The method for processing vehicle driving capability according to claim 9, characterized in that, Based on the power mode, determining whether the prompt message meets the conditions for releasing the arbitration includes: In response to the power mode being power-on mode, it is determined that the prompt message does not meet the conditions for releasing the arbitration. In response to the power mode switching from power-on mode to power-off mode, it is determined that the prompt message meets the conditions for releasing arbitration.

11. A processing device for vehicle driving capability, characterized in that, The electric drive system of the vehicle includes at least one drive motor and a battery, and the device includes: The acquisition module is used to acquire the vehicle's real-time speed and the battery's real-time status parameters, wherein the real-time status parameters include: discharge driving capability and remaining energy. The determination module is used to determine the motor drive capability and the theoretical motor drive capability of the vehicle based on the real-time vehicle speed. The motor drive capability is used to characterize the drive capability of the drive motor corresponding to the real-time vehicle speed under the actual operating state and environmental factors of the vehicle. The theoretical motor drive capability is used to characterize the drive capability of the drive motor corresponding to the real-time vehicle speed under the fault-free state of the electric drive system. The output module is used to output a prompt message in response to the motor driving capability not meeting the theoretical driving capability of the motor, or the real-time status parameters not meeting the preset status parameters. The prompt message is used to indicate that the driving capability of the electric drive system is limited, and the preset status parameters are used to characterize the status parameters of the battery when the electric drive system is fault-free. The configuration of the electric drive system includes at least one of the following: a distributed four-wheel drive configuration, a dual-motor four-wheel drive configuration, and a single-motor four-wheel drive configuration; The determining module is further configured to perform the following steps: determining the motor drive capability of the vehicle based on the real-time vehicle speed, including: determining the transmission ratio from each drive motor to the wheel end of the vehicle; determining the target speed of each drive motor based on the real-time vehicle speed and the transmission ratio corresponding to each drive motor; determining the motor drive capability based on the target speed of each drive motor and the system temperature, wherein each drive motor in different configurations corresponds to the system temperature; The output module is further configured to perform the following steps: in response to the motor drive capability not meeting the theoretical drive capability of the motor, or the real-time status parameter not meeting the preset status parameter, outputting a prompt message, including: in response to the motor drive capability not meeting the theoretical drive capability of the motor, or the real-time status parameter not meeting the preset status parameter, controlling the electric drive system to perform high-voltage power-on; in response to the completion of high-voltage power-on of the electric drive system, determining whether the electric drive system has malfunctioned; in response to the electric drive system not malfunctioning, determining the effective time of the prompt message, wherein the effective time is used to characterize the duration for which the motor drive capability does not meet the theoretical drive capability of the motor, or the duration for which the real-time status parameter does not meet the preset status parameter; in response to the effective time being greater than or equal to the preset time, determining that the prompt message meets the arbitration condition, and outputting the prompt message, wherein the arbitration condition is used to characterize the condition for outputting the prompt message.

12. A vehicle, characterized in that, include: Memory, which stores executable programs; A processor for running the program, wherein the program, when running, performs the method according to any one of claims 1 to 10.

13. A computer-readable storage medium, characterized in that, The computer-readable storage medium includes a stored executable program, wherein, when the executable program is executed, it controls the device on which the storage medium is located to perform the method according to any one of claims 1 to 10.

14. A computer program product, characterized in that, Includes a computer program that, when executed by a processor, implements the method according to any one of claims 1 to 10.

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