Electric drive howling control method and device, electronic equipment and vehicle

Abstract

The invention relates to an electric drive howling control method and device, electronic equipment and a vehicle, and relates to the technical field of vehicles, and the method comprises the steps: obtaining the following noise of an auxiliary drive system of the vehicle and the working state of target equipment of the vehicle; the target equipment is equipment capable of influencing the sound environment in the vehicle; based on the follow-up noise of the auxiliary driving system and the working state of the target equipment, whether torque is applied to the auxiliary driving system of the vehicle or not is determined, and the torque is used for weakening howling of the auxiliary driving system. Therefore, the influence of the working state of the target equipment on the in-vehicle sound environment is considered, when the target equipment influences the in-vehicle sound environment, howling of the auxiliary driving system is not likely to be perceived, torque does not need to be applied to the auxiliary driving system of the vehicle, and then the cruising ability of the vehicle is improved.

Description

Technical Field

[0001] The present application relates to the field of vehicle technology, and in particular to an electric drive howling control method, device, electronic equipment and vehicle. Background Art

[0002] With the development of economy and the improvement of users' quality of life, cars have become an indispensable means of transportation in people's daily life. In recent years, the market share of new energy vehicles has continued to increase. Since the power source of new energy vehicles has changed from traditional fuel engines to drive motors, the low-frequency noise generated by the engine is reduced during the driving process of the vehicle. Therefore, compared with traditional vehicles, the interior environment of new energy vehicles is quieter during operation. When the vehicle whistles, new energy vehicles are easier to detect than traditional fuel vehicles.

[0003] In the related art, by determining the gear whine value of the target vehicle at the target uniform speed, when the gear whine value is greater than the preset whine value, the torque distribution ratio of the front electric drive system and the rear electric drive system is determined according to the gear whine value, and the torque distribution ratio of the front electric drive system and the rear electric drive system of the target vehicle at the target uniform speed is adjusted to reduce the gear whine value. In another related art, by obtaining the operating condition distribution map of the vehicle under different working conditions, based on the operating condition distribution map, multiple sets of engine torques at different throttle openings and different engine speeds are obtained, and then based on the multiple sets of engine torques, multiple sets of target required torques of the vehicle are determined, and through the multiple sets of target required torques, torque control boundary lines under corresponding working conditions are established, and according to the torque control boundary lines, the vehicle under the corresponding working conditions is controlled to adjust the current engine torque. These two methods only consider the impact of reducing vehicle whine by adjusting the vehicle electric drive torque, and do not consider the impact of adding or allocating torque to the vehicle on the vehicle's endurance. Summary of the invention

[0004] The purpose of the present invention is to provide an electric drive howling control method, device, electronic equipment and vehicle, aiming to solve the technical problem of the related technology that continuously adding or distributing torque to the vehicle within the full speed range of the vehicle affects the vehicle's endurance.

[0005] In order to achieve the above purpose, the technical solution adopted in the embodiment of the present application is as follows:

[0006] In a first aspect, an embodiment of the present application provides an electric drive howling control method, the method comprising: obtaining the rotational noise of the auxiliary drive system of the vehicle and the working status of a target device of the vehicle; the target device is a device that can affect the acoustic environment inside the vehicle; based on the rotational noise of the auxiliary drive system and the working status of the target device, determining whether to apply torque to the auxiliary drive system of the vehicle, the torque being used to reduce the howling of the auxiliary drive system.

[0007] According to the above technical means, based on the rotational noise of the auxiliary drive system and the working state of the target device, it is determined whether to apply torque to the auxiliary drive system of the vehicle, wherein the target device is a device that can affect the in-vehicle acoustic environment. It can be seen that the electric drive howling control method provided in the embodiment of the present application takes into account that when the in-vehicle acoustic environment is affected, it is not easy for the user to perceive the howling of the auxiliary drive system. Based on this, it is determined whether to apply torque to the auxiliary drive system of the vehicle, which can effectively reduce the number and time of applying torque to the auxiliary drive system during the vehicle's driving process, and thus can improve the vehicle's endurance without affecting the user's riding experience.

[0008] In one possible implementation, whether to apply torque to the auxiliary drive system of the vehicle is determined based on the rotational noise of the auxiliary drive system and the working state of the target device, including: when the target device is in a closed state and the rotational noise of the auxiliary drive system is greater than a preset noise value, determining that torque is applied to the auxiliary drive system.

[0009] According to the above technical means, when the target device is in a turned-off state and the rotation noise of the auxiliary drive system is greater than a preset noise value, applying torque to the auxiliary drive system can effectively control the howling of the auxiliary drive system and improve the driving comfort of the vehicle.

[0010] In one possible implementation, whether to apply torque to the auxiliary drive system of the vehicle is determined based on the rotation noise of the auxiliary drive system and the operating state of the target device, including: when the rotation noise of the auxiliary drive system is less than or equal to a preset noise value, determining not to apply torque to the auxiliary drive system; or, when the rotation noise of the auxiliary drive system is greater than the preset noise value and the target device is in an on state, determining not to apply torque to the auxiliary drive system.

[0011] According to the above technical means, when the target device is in the on state or the rotation noise of the auxiliary drive system is less than or equal to the preset noise value, the whistling of the auxiliary drive system is not easily noticeable, and torque may not be applied to the auxiliary drive system, which can improve the vehicle's endurance without affecting the user's riding experience.

[0012] In a possible implementation, the preset noise value is determined based on the driving state of the vehicle and a preset corresponding relationship; wherein the preset corresponding relationship is used to indicate a preset noise threshold value corresponding to the vehicle under different driving states.

[0013] According to the above technical means, the preset noise value is determined by the driving state of the vehicle and the preset corresponding relationship, and the preset noise threshold can be judged in real time based on the driving state of the vehicle, so as to more accurately judge whether to apply torque to the auxiliary drive system, thereby improving the accuracy of the electric drive howling control method. In addition, the present application can be applied to different driving states of the vehicle, improving the flexibility of the electric drive howling control method.

[0014] In a possible implementation, the driving state of the vehicle is determined based on the operating data of the vehicle; the operating data of the vehicle includes at least one of the following: vehicle speed, motor speed, motor torque, and accelerator pedal opening.

[0015] According to the above-mentioned technical means, the driving state of the vehicle is determined in real time through the vehicle's operating data, which can more accurately judge the driving state of the vehicle. At the same time, the vehicle's operating data includes multiple factors such as vehicle speed, motor speed, motor torque, and accelerator pedal opening, making the vehicle's driving state more comprehensive, thereby improving the accuracy of the electric drive howling control method.

[0016] In a possible implementation, the target device includes at least one of the following: a vehicle window, a speaker, an air conditioner, and a low-speed warning sound device.

[0017] According to the above technical means, based on multiple devices such as windows, speakers, air conditioners, and low-speed warning sound devices, comprehensive consideration is given to factors that may affect the vehicle's sound environment, which can effectively reduce the possibility of applying torque to the auxiliary drive system and improve the vehicle's endurance.

[0018] In one possible implementation, after determining that torque is applied to the auxiliary drive system of the vehicle, the method further includes: stopping applying torque to the auxiliary drive system when a preset condition is met; wherein the preset condition includes at least one of the following: after the torque is applied to the auxiliary drive system, the vehicle speed enters a second speed range from a first speed range; after the torque is applied to the auxiliary drive system, the vehicle's driving distance is greater than or equal to a preset distance; after the torque is applied to the auxiliary drive system, the vehicle's driving time is greater than or equal to a preset time.

[0019] According to the above technical means, by setting preset conditions, the torque of the auxiliary drive system is canceled when the preset conditions are met. During the vehicle driving process, the torque of the auxiliary drive system can be canceled based on the real-time changes in vehicle speed, driving distance or driving time, thereby improving the vehicle's endurance.

[0020] In one possible implementation, the rotation noise of the auxiliary drive system of the vehicle and the working state of the target device of the vehicle are obtained, including: when the vehicle speed enters the second speed range from the first speed range, the rotation noise of the auxiliary drive system and the working state of the target device are obtained; or, the rotation noise of the auxiliary drive system and the working state of the target device are obtained at every preset time period; or, the rotation noise of the auxiliary drive system and the working state of the target device are obtained every time a preset distance is traveled.

[0021] According to the above technical means, based on the vehicle speed, preset time period or preset driving distance, the rotational noise of the auxiliary drive system and the working status of the target equipment are periodically obtained to avoid applying torque to the vehicle after the vehicle howls, thereby reducing the time for the vehicle to apply torque and further improving the vehicle's endurance.

[0022] In a possible implementation, when it is determined that torque is applied to an auxiliary drive system of the vehicle, the method further includes: determining a target torque value applied to the auxiliary drive system based on rotational noise of the auxiliary drive system.

[0023] According to the above technical means, the target torque value applied by the auxiliary drive system is determined based on the rotational noise of the auxiliary drive system, which can reduce the impact of the rotational noise on the vehicle driving experience. At the same time, the target torque value applied by the auxiliary drive system can be more accurately determined through the rotational noise of the auxiliary drive system, thereby improving the accuracy of the motor howling method.

[0024] In the second aspect, an embodiment of the present application provides an electric drive howling control device, which includes: a communication module and a processing module; the communication module is used to obtain the rotational noise of the vehicle's auxiliary drive system and the working status of the vehicle's target device; the processing module is used to determine whether to apply torque to the vehicle's auxiliary drive system based on the rotational noise of the auxiliary drive system and the working status of the target device, and the torque is used to reduce the howling of the auxiliary drive system.

[0025] In a possible implementation manner, the processing module is specifically configured to determine to apply torque to the auxiliary drive system when the target device is in a closed state and the rotation noise of the auxiliary drive system is greater than a preset noise value.

[0026] In one possible implementation, the processing module is specifically used to determine not to apply torque to the auxiliary drive system when the rotation noise of the auxiliary drive system is less than or equal to a preset noise value; or to determine not to apply torque to the auxiliary drive system when the rotation noise of the auxiliary drive system is greater than a preset noise value and the target device is in an on state.

[0027] In a possible implementation manner, the preset noise value is determined based on the driving state of the vehicle and a preset corresponding relationship; wherein the preset corresponding relationship is used to indicate a preset noise threshold value corresponding to the vehicle under different driving states.

[0028] In a possible implementation, the driving state of the vehicle is determined based on the operating data of the vehicle; the operating data of the vehicle includes at least one of the following: vehicle speed, motor speed, motor torque, and accelerator pedal opening.

[0029] In a possible implementation, the target device includes at least one of the following: a vehicle, a speaker, an air conditioner, and a low-speed warning sound device.

[0030] In one possible implementation, after determining that torque is applied to the auxiliary drive system of the vehicle, the processing module is further used to stop applying torque to the auxiliary drive system if a preset condition is met; wherein the preset condition includes at least one of the following: after the torque is applied to the auxiliary drive system, the vehicle speed enters the second speed range from the first speed range; after the torque is applied to the auxiliary drive system, the vehicle's driving distance is greater than or equal to the preset distance; after the torque is applied to the auxiliary drive system, the vehicle's driving time is greater than or equal to the preset time.

[0031] In a possible implementation, the communication module is specifically used to obtain the rotational noise of the auxiliary drive system and the working state of the target device when the vehicle speed enters the second speed range from the first speed range; or, to obtain the rotational noise of the auxiliary drive system and the working state of the target device at every preset time period; or, to obtain the rotational noise of the auxiliary drive system and the working state of the target device every time a preset distance is traveled.

[0032] In a possible implementation manner, when it is determined that torque is applied to an auxiliary drive system of the vehicle, the processing module is further configured to determine a target torque value applied to the auxiliary drive system based on the rotation noise of the auxiliary drive system.

[0033] In a third aspect, an embodiment of the present application provides an electronic device, comprising: a processor and a memory; the memory stores instructions executable by the processor; when the processor is configured to execute the instructions, the electronic device implements the method of the first aspect above.

[0034] In a fourth aspect, an embodiment of the present application provides a vehicle, which includes the electronic device of the third aspect mentioned above.

[0035] In a fifth aspect, an embodiment of the present application provides a computer-readable storage medium, on which computer program instructions are stored. When the computer program instructions are executed by a processor, the electric drive howling control method of any of the above embodiments is implemented.

[0036] In a sixth aspect, an embodiment of the present application provides a computer program product, which includes computer program instructions, and when the computer program instructions are executed by a processor, the electric drive howling control method of any of the above embodiments is implemented.

[0037] It should be noted that the technical effects brought about by any implementation method in the second to sixth aspects can refer to the technical effects brought about by the corresponding implementation method in the first aspect, and will not be repeated here.

[0038] It should be understood that the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the present application. BRIEF DESCRIPTION OF THE DRAWINGS

[0039] The drawings herein are incorporated into the specification and constitute a part of the specification, illustrate embodiments consistent with the present application, and together with the specification are used to explain the principles of the present application, and do not constitute an improper limitation on the present application.

[0040] Figure 1 is a structural schematic diagram of an electric drive howling control system according to an exemplary embodiment;

[0041] Figure 2 is a flow chart of an electric drive howling control method according to an exemplary embodiment;

[0042] Figure 3 is a flow chart showing another electric drive howling control method according to an exemplary embodiment;

[0043] Figure 4 is a flow chart showing another electric drive howling control method according to an exemplary embodiment;

[0044] Figure 5 is a flow chart showing another electric drive howling control method according to an exemplary embodiment;

[0045] Figure 6 is a flow chart showing another electric drive howling control method according to an exemplary embodiment;

[0046] Figure 7 is a block diagram of an electric drive howling control device according to an exemplary embodiment;

[0047] Figure 8 It is a block diagram of an electronic device according to an exemplary embodiment. DETAILED DESCRIPTION

[0048] In order to enable ordinary persons in the art to better understand the technical solution of the present application, the technical solution in the embodiments of the present application will be clearly and completely described below in conjunction with the accompanying drawings.

[0049] It should be noted that the terms "first", "second", etc. in the specification and claims of the present application and the above-mentioned drawings are used to distinguish similar objects, and are not necessarily used to describe a specific order or sequence. It should be understood that the data used in this way can be interchangeable where appropriate, so that the embodiments of the present application described herein can be implemented in an order other than those illustrated or described herein. The embodiments described in the following exemplary embodiments do not represent all embodiments consistent with the present application. On the contrary, they are merely examples of devices and methods consistent with some aspects of the present application as detailed in the attached claims.

[0050] In the present application, the terms "comprises", "comprising" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, article or device including a series of elements includes not only those elements, but also includes other elements not explicitly listed, or also includes elements inherent to such process, article or device. In the absence of further restrictions, an element defined by the sentence "comprising a ..." does not exclude the presence of other identical elements in the process, article or device including the element.

[0051] In the embodiments of the present application, words such as "exemplary" or "for example" are used to indicate examples, illustrations or descriptions. Any embodiment or design described as "exemplary" or "for example" in the embodiments of the present application should not be interpreted as being more preferred or more advantageous than other embodiments or designs. Specifically, the use of words such as "exemplary" or "for example" is intended to present related concepts in a specific way.

[0052] For new energy four-wheel drive vehicles, the auxiliary drive system does not output torque in some economic modes (Eco) or other modes with low torque. When the auxiliary drive system is in the off state, since the auxiliary drive system is not powered on, the motor does not generate output torque, resulting in the inability of the auxiliary drive system's main and auxiliary driven gears to fully fit together, and the shaft system of the auxiliary drive system can rotate freely, lacking a fixed rotation direction, and is therefore susceptible to interference from external factors. Since the meshing state of the auxiliary drive system's gears is unstable, when the electric drive receives excitation from the half-shaft or other devices connected to the auxiliary drive system, the gears will exhibit a strong nonlinear coupling vibration phenomenon of repeated contact, disengagement, and re-contact during the meshing process, which in turn causes gear meshing whine.

[0053] In the related art, the adjustment of vehicle gear noise is mostly done by modifying the torque distribution between gears. For example, the vehicle noise data is obtained, and the gear whine value of the front reducer and the gear whine value of the rear reducer are determined based on the vehicle noise data, and then the torque distribution between the front electric drive system and the rear electric drive system is determined. However, since the vehicle performs torque distribution in real time, the vehicle's endurance is reduced. In addition, the prior art only considers the optimal torque distribution ratio of the front electric drive system and the rear electric drive system at a uniform vehicle speed, which has limitations and reduces the vehicle's endurance.

[0054] In view of this, the present application provides an electric drive howling control method, which obtains the rotational noise of the auxiliary drive system of the vehicle and the working state of the target device of the vehicle, and determines whether to apply torque to the auxiliary drive system of the vehicle based on the rotational noise of the auxiliary drive system and the working state of the target device, wherein the target device is a device that can affect the in-vehicle sound environment. It can be seen that the electric drive howling control method provided in the embodiment of the present application takes into account that when the in-vehicle sound environment is affected, it is not easy for the user to perceive the howling of the auxiliary drive system. Based on this, it is determined whether to apply torque to the auxiliary drive system of the vehicle, which can effectively reduce the number and time of the auxiliary drive system applying torque during the vehicle driving process, and thus can improve the vehicle's endurance without affecting the user's riding experience.

[0055] For ease of understanding, the electric drive howling control method provided in the present application is specifically introduced below with reference to the accompanying drawings.

[0056] In some embodiments, Figure 1 As shown, the electric drive howling control method provided in the embodiment of the present application can be Figure 1 The electric drive howling control system shown is implemented, and the electric drive howling control system includes: a collector 110, a processor 120 and an actuator 130. The collector 110 is connected to the processor 120, and the processor 120 is connected to the actuator 130.

[0057] In some embodiments, the collector 110 includes a noise collector 1101 and a vehicle data collector 1102 .

[0058] Exemplarily, the noise collector 1101 is used to collect the rotation noise of the auxiliary drive system of the vehicle and send it to the processor 120 .

[0059] Exemplarily, the noise collector 1101 may be a noise sensor.

[0060] Exemplarily, the vehicle data collector 1102 may be connected to communicate with various electronic control units of the vehicle via a controller area network (CAN) bus to collect the vehicle's operating data and the working status of the target device in real time.

[0061] For example, the CAN bus is a real-time, highly reliable serial communication bus. With its high reliability, real-time performance and flexibility, the CAN bus forms an efficient information communication network inside the vehicle, enabling various electronic control units to exchange data in real time.

[0062] The vehicle operation data includes at least one of the following: vehicle speed, motor speed, motor torque, and accelerator pedal opening.

[0063] Exemplarily, the target device includes at least one of the following: a car window, a speaker, an air conditioner, and a low-speed warning sound device.

[0064] The low-speed warning sound device may be a buzzer or an engine sound simulator, etc.

[0065] In some embodiments, the processor 120 is used to determine whether to apply torque to the auxiliary drive system of the vehicle. Exemplarily, the processor 120 is used to obtain the rotation noise of the auxiliary drive system of the vehicle and the working state of the target device of the vehicle; based on the rotation noise of the auxiliary drive system of the vehicle and the working state of the target device of the vehicle, determine whether to apply torque to the auxiliary drive system of the vehicle.

[0066] Exemplarily, the processor 120 may be a server cluster composed of multiple servers, or a single server, or a computer, or a processor or processing chip in a server or computer, etc. This embodiment of the application does not limit this.

[0067] In some embodiments, actuator 130 is used to apply torque to an auxiliary drive system of the vehicle.

[0068] For example, the actuator 130 may be a motor, a hydraulic actuator, a pneumatic actuator, or an electromagnetic actuator.

[0069] It should be noted that the system architecture described in the embodiments of the present application is for more clearly illustrating the technical solutions of the embodiments of the present application, and does not constitute a limitation on the technical solutions provided in the embodiments of the present application. A person of ordinary skill in the art can know that with the evolution of the system architecture, the technical solutions provided in the embodiments of the present application are also applicable to similar technical problems.

[0070] Figure 2 is a flow chart of an electric drive howling control method according to an exemplary embodiment. The electric drive howling control method is applied to Figure 1 The processor 120 in Figure 2 As shown, the electric drive howling control method includes the following steps:

[0071] S201: Obtain rotation noise of an auxiliary driving system of a vehicle and an operating state of a target device of the vehicle.

[0072] The target device is a device that can affect the acoustic environment inside the vehicle.

[0073] In some embodiments, the target device includes at least one of the following: a car window, a speaker, an air conditioner, and a low-speed warning sound device.

[0074] Exemplarily, the working state of the target device includes: on and off.

[0075] It should be noted that when the in-car acoustic environment is relatively quiet, the rotation noise of the auxiliary drive system is easier to be detected and more likely to affect the driving experience of the vehicle. When the windows are open, external noise can enter the car, and the in-car acoustic environment is greatly affected by the external noise. When the windows are closed, the windows can isolate the external noise, and the external noise has less impact on the in-car acoustic environment. When the speakers are turned on, music or navigation prompts can be played, and the in-car acoustic environment is greatly affected by the sound of the speakers. When the speakers are turned off, the in-car acoustic environment is not affected. When the air conditioner is turned on, it provides cooling or heating services for the vehicle, which will generate certain noise, which has a greater impact on the in-car acoustic environment. When the air conditioner is turned off, no noise will be generated, and the in-car acoustic environment is not affected. When the low-speed warning sound device is turned on, a warning sound may be issued when the vehicle is driving, which has a greater impact on the vehicle acoustic environment. When the low-speed warning sound device is turned off, the in-car acoustic environment is not affected.

[0076] It is understandable that based on multiple devices such as windows, speakers, air conditioners, and low-speed warning sound devices, comprehensive consideration is given to factors that can affect the vehicle's sound environment, which can effectively reduce the possibility of applying torque to the auxiliary drive system and improve the vehicle's endurance.

[0077] In some embodiments, the auxiliary drive system is one or more auxiliary drive devices added to the original main drive system of the vehicle.

[0078] In some embodiments, the rotation noise is used to represent the noise generated when the auxiliary drive system of the vehicle is running during driving.

[0079] S202: Determine whether to apply torque to the auxiliary drive system of the vehicle based on the rotation noise of the auxiliary drive system and the working state of the target device.

[0080] In some embodiments, applying torque to the auxiliary drive system of the vehicle is used to reduce the whistling of the auxiliary drive system. It is understandable that applying torque to the auxiliary drive system of the vehicle can keep the contact surfaces in the transmission system of the auxiliary drive system in a stable fit state at all times, thereby reducing the whistling of the auxiliary drive system.

[0081] It should be noted that, based on the rotational noise of the auxiliary drive system and the working state of the target device, it can be determined whether the rotational noise of the auxiliary drive system will affect the driving comfort of the vehicle, and then it can be determined whether to apply torque to the auxiliary drive system of the vehicle to reduce the howling of the auxiliary drive system.

[0082] It should be understood that, in the case where it is determined to apply torque to the auxiliary drive system of the vehicle, the target torque applied to the vehicle may be a constant value and will not change due to changes in the rotational noise.

[0083] It is understandable that compared to the prior art, when the vehicle is in ECO mode and moving forward, the rear drive is responsible for driving the vehicle, and when the front drive is in a follow-up state and only outputs a very small torque (i.e., pre-torque), the front drive transmission system is in a fitted state, which reduces the front drive howling, and there is a problem that the front drive always outputs pre-torque, affecting the vehicle's endurance. This application uses a technical means to determine whether the vehicle's auxiliary drive system applies torque based on the working state of the target device and the rotation noise of the auxiliary drive system, which can effectively reduce the number and time of the auxiliary drive system applying torque during the vehicle's driving process, and thus can improve the vehicle's endurance without affecting the user's riding experience.

[0084] As a possible implementation, the above step S201 may be implemented as follows: when the vehicle speed enters the second speed range from the first speed range, the rotation noise of the auxiliary drive system and the working state of the target device are obtained.

[0085] In some embodiments, the vehicle speed is positively correlated with the rotational noise of the auxiliary drive system. For example, as the vehicle speed increases, the rotational noise of the auxiliary drive system increases.

[0086] Exemplarily, within the same speed range, the influence of the rotational noise of the auxiliary drive system on the in-vehicle acoustic environment is the same or similar.

[0087] For example, the auxiliary drive system's rotation noise corresponding to the vehicle speed in the first speed range and the vehicle speed in the second speed range has a large or medium difference in the degree of influence on the in-vehicle acoustic environment. The first speed range may be [30, 60) km / h, and the second speed range may be [60, 90) km / h, which can be divided according to actual conditions and is not limited in this application.

[0088] In some embodiments, the upper limit of the first speed interval is less than the lower limit of the second speed interval. It is understandable that as the vehicle speed increases, the vehicle speed enters the second speed interval from the first speed interval, the rotation noise of the auxiliary drive system increases, and as the vehicle travels, the working state of the target device may change. Therefore, it is necessary to obtain the rotation noise of the auxiliary drive system and the working state of the target device to improve the accuracy of the electric drive howling control method. Exemplarily, the first speed interval can be [30, 60) km / h, and the second speed interval can be [60, 90) km / h.

[0089] It should be understood that when the vehicle speed enters the second speed range from the first speed range, the rotational noise change rate of the auxiliary drive system is high, and the working state of the target device may change while the vehicle speed changes. Therefore, it is necessary to obtain the rotational noise of the auxiliary drive system and the working state of the target device to improve the accuracy of the electric drive howling control method.

[0090] In other embodiments, the lower limit of the first speed interval is greater than the upper limit of the second speed interval. It is understandable that as the vehicle speed decreases, the vehicle speed enters the second speed interval from the first speed interval, the rotation noise of the auxiliary drive system decreases, and as the vehicle travels, the working state of the target device may change. Therefore, it is necessary to obtain the rotation noise of the auxiliary drive system and the working state of the target device to improve the accuracy of the electric drive howling control method. Among them, the first speed interval can be [60, 90) km / h, and the second speed interval can be [30, 60) km / h.

[0091] It should be understood that as the rotational noise of the auxiliary drive system decreases, the rotational noise of the auxiliary drive system may not affect the acoustic environment inside the vehicle. Therefore, it is necessary to re-acquire the rotational noise of the auxiliary drive system and the working status of the target device so as to be able to change the torque of the auxiliary drive system in time, thereby improving the vehicle's endurance.

[0092] As another possible implementation, the above step S201 may also be implemented as follows: obtaining the rotation noise of the auxiliary drive system and the working status of the target device at every preset time period.

[0093] In some embodiments, the preset time period is the time interval between two consecutive acquisitions of the auxiliary drive system's rotation noise and the working state of the target device, or, in the case where it is determined that the auxiliary drive system is to add torque, the preset time period can be the time interval between two consecutive adjustments of the torque of the auxiliary drive system. The preset time period can be determined based on the speed or performance of the vehicle, and the present application does not limit the range of the preset time period.

[0094] For example, as the vehicle travels for a certain period of time, the rotation noise of the auxiliary drive system and the working state of the target device may change. Therefore, it is necessary to obtain the rotation noise of the auxiliary drive system and the working state of the target device to improve the accuracy of the electric drive howling control method. The preset time period may be 30 minutes.

[0095] For example, assuming that the processor obtains the rotation noise of the auxiliary drive system and the working state of the target device at time t1, the rotation noise of the auxiliary drive system and the working state of the target device are obtained again after the vehicle travels for a preset time period △t, that is, at time t1+△t. The preset time period △t may be 30 minutes.

[0096] For example, assuming that the processor adjusts the auxiliary drive system torque at time t1, after the vehicle travels for a preset time period △t, that is, at time t1+△t, the torque of the auxiliary drive system is released, and the rotation noise of the auxiliary drive system and the working state of the target device are obtained again, and the torque to be applied to the auxiliary drive system is re-determined based on the rotation noise of the auxiliary drive system and the working state of the target device, and then the torque is applied to the auxiliary drive system. For example, the preset time period △t can be 30 minutes.

[0097] As another possible implementation, the above step S201 may also be implemented as follows: obtaining the rotation noise of the auxiliary drive system and the working status of the target device every time a preset distance is traveled.

[0098] In some embodiments, the preset driving distance is the distance traveled by the vehicle between two consecutive acquisitions of the auxiliary drive system's rotation noise and the working state of the target device, or, in the case where it is determined that the auxiliary drive system adds torque, the preset driving distance can be the distance traveled by the vehicle when the auxiliary drive system adjusts the torque twice. It can be determined based on the speed of the vehicle, and the present application does not limit the size of the preset driving distance.

[0099] For example, as the vehicle's driving distance changes, the rotational noise of the auxiliary drive system and the working state of the target device may change. Therefore, it is necessary to obtain the rotational noise of the auxiliary drive system and the working state of the target device to improve the accuracy of the electric drive howling control method.

[0100] For example, assuming that the processor obtains the rotation noise of the auxiliary drive system and the working state of the target device when the vehicle travels to L1 kilometers, the processor obtains the rotation noise of the auxiliary drive system and the working state of the target device again after the vehicle travels a preset driving distance △L kilometers, that is, at L1+△L kilometers. The preset driving distance △L may be 2.

[0101] For example, assuming that the processor adjusts the auxiliary drive system torque when the vehicle travels to L1 kilometers, after the vehicle travels a preset travel distance △L kilometers, that is, at L1+△L kilometers, the torque of the auxiliary drive system is released, and the rotation noise of the auxiliary drive system and the working state of the target device are obtained again, and the torque to be applied to the auxiliary drive system is re-determined based on the rotation noise of the auxiliary drive system and the working state of the target device, and then the torque is applied to the auxiliary drive system. For example, the preset travel distance △L can be 2.

[0102] It should be understood that the period for acquiring the rotation noise of the auxiliary drive system and the working status of the target device can be determined by setting a preset time period and a preset driving distance.

[0103] It can be understood that based on the vehicle speed, preset time period or preset driving distance, the rotation noise of the auxiliary drive system and the working status of the target device are periodically obtained, and the torque of the auxiliary drive system can be adjusted in time, thereby reducing the time for the vehicle to apply torque, thereby improving the vehicle's endurance.

[0104] In some embodiments, Figure 3 As shown, the above step S202 can be implemented by any of the following steps:

[0105] S2021. When the target device is in a closed state and the rotation noise of the auxiliary drive system is greater than a preset noise value, determine that the auxiliary drive system applies torque.

[0106] In some embodiments, the preset noise value is determined based on a driving state of the vehicle and a preset corresponding relationship.

[0107] The preset corresponding relationship is used to indicate the preset noise thresholds corresponding to the vehicle under different driving conditions. It should be noted that the preset corresponding relationship is a set of noise thresholds pre-set according to the driving conditions of the vehicle when the vehicle is designed.

[0108] Exemplarily, the preset noise value is used to represent the maximum rotational noise value that will not affect the driving experience under the current driving state of the vehicle. It is determined based on the performance of the vehicle, and this application does not limit the size of the preset noise value.

[0109] It is understandable that by determining the preset noise value through the driving state of the vehicle and the preset corresponding relationship, the preset noise threshold can be judged in real time based on the driving state of the vehicle, and then it can be more accurately judged whether to apply torque to the auxiliary drive system, thereby improving the accuracy of the electric drive howling control method. In addition, the present application can be applied to different driving states of the vehicle, improving the flexibility of the electric drive howling control method.

[0110] In some embodiments, the driving state of the vehicle is determined based on the vehicle's operating data.

[0111] Exemplarily, the vehicle operation data includes at least one of the following: vehicle speed, motor speed, motor torque, and accelerator pedal opening.

[0112] It can be understood that determining the vehicle's driving status in real time through the vehicle's operating data can more accurately judge the vehicle's driving status. At the same time, the vehicle's operating data includes multiple factors such as vehicle speed, motor speed, motor torque, and accelerator pedal opening, which makes the vehicle's driving status more comprehensive, thereby improving the accuracy of the electric drive howl control method.

[0113] In some embodiments, the driving state of the vehicle may be an ECO mode, a sports mode, or an idle state, etc. For example, when the vehicle speed is zero or close to zero, and the motor speed and torque are low, the vehicle is in an idle state.

[0114] It should be noted that when the vehicle is in ECO mode, the vehicle pursues energy saving and low noise, and the preset noise value can be relatively low to ensure that the vehicle remains quiet in a low power consumption state; when the vehicle is in sports mode, as the vehicle performance improves, the preset noise threshold may be moderately increased; when the vehicle is idling, the preset noise value can be set lower to enhance the driving experience when the vehicle is stationary or driving slowly.

[0115] It can be understood that when the target device is in the off state and the rotation noise of the auxiliary drive system is greater than the preset noise value, applying torque to the auxiliary drive system can effectively control the howling of the auxiliary drive system and improve the driving comfort of the vehicle.

[0116] S2022: When the rotation noise of the auxiliary drive system is less than or equal to a preset noise value, determine not to apply torque to the auxiliary drive system.

[0117] It should be noted that when the rotational noise of the auxiliary drive system is less than or equal to the preset noise value, the rotational noise of the auxiliary drive system will not affect the acoustic environment inside the vehicle, and therefore will not affect the driving experience of the vehicle, and torque may not be applied to the auxiliary drive system.

[0118] S2023: When the rotation noise of the auxiliary drive system is greater than a preset noise value and the target device is in an on state, determine not to apply torque to the auxiliary drive system.

[0119] It should be noted that when the target device is in the on state, the target device will affect the sound environment inside the vehicle. At this time, when the rotational noise of the auxiliary drive system is greater than the preset noise value, the rotational noise of the auxiliary drive system has a much smaller impact on the sound environment inside the vehicle than the impact of the target device. Therefore, it will not affect the driving experience of the vehicle, and torque does not need to be applied to the auxiliary drive system.

[0120] It can be understood that by determining that the target device is in the off state and the rotation noise of the auxiliary drive system is greater than the preset noise value, and applying torque to the auxiliary drive system, the howling of the auxiliary drive system can be effectively controlled to improve the driving comfort of the vehicle. At the same time, when the target device is in the on state or the rotation noise of the auxiliary drive system is less than or equal to the preset noise value, the howling of the auxiliary drive system is not easy to be detected, and torque can be omitted from the auxiliary drive system, which can improve the vehicle's endurance without affecting the user's riding experience.

[0121] In some embodiments, Figure 4 As shown, after determining that the torque is applied to the auxiliary drive system of the vehicle, the electric drive howling control method provided by the present application further includes the following steps:

[0122] S401: When a preset condition is met, stop applying torque to the auxiliary drive system.

[0123] In some embodiments, the preset condition includes at least one of the following:

[0124] Condition 1: After the torque is applied to the auxiliary drive system, the vehicle speed enters the second speed interval from the first speed interval.

[0125] It should be understood that when the vehicle speed enters the second speed range from the first speed range, the rotation noise of the auxiliary drive system and the working state of the target device may change. Therefore, it is necessary to cancel the torque of the auxiliary drive system first and then re-determine whether to apply torque to the auxiliary drive system.

[0126] Condition 2: After applying torque to the auxiliary drive system, the vehicle travels a distance greater than or equal to a preset distance.

[0127] It should be understood that when the vehicle's driving distance is greater than or equal to the preset distance, the rotational noise of the auxiliary drive system and the working state of the target device may change. Therefore, it is necessary to first cancel the torque of the auxiliary drive system and then re-determine whether to apply torque to the auxiliary drive system.

[0128] Condition 3: After torque is applied to the auxiliary drive system, the vehicle's driving time is greater than or equal to a preset time.

[0129] It should be understood that when the vehicle's driving time is greater than or equal to the preset time, the rotational noise of the auxiliary drive system and the working state of the target device may change. Therefore, it is necessary to cancel the torque of the auxiliary drive system first and then re-determine whether to apply torque to the auxiliary drive system.

[0130] It can be understood that by setting up preset conditions and stopping applying torque to the auxiliary drive system when the preset conditions are met, the torque of the auxiliary drive system can be canceled based on real-time changes in vehicle speed, driving distance or driving time during vehicle driving, thereby improving the vehicle's endurance.

[0131] In some embodiments, Figure 5 As shown, in the case where it is determined that the auxiliary drive system of the vehicle applies torque, the electric drive howling control method provided by the present application further includes the following steps:

[0132] S501 . Determine a target torque value applied to the auxiliary drive system based on the rotation noise of the auxiliary drive system.

[0133] In some embodiments, the target torque value may be determined based on a large number of experiments.

[0134] It should be understood that determining the target torque value includes: selecting a flat test road, collecting various operating data of the vehicle on the selected road surface, collecting rotation noise, and adjusting the torque applied to the auxiliary drive system in real time, and comparing the auxiliary drive system howling results to determine the target torque value to be applied. Among them, the test road can be a performance road of a test site, etc.; the vehicle's operating data can include at least one of the following: vehicle speed, motor speed, motor torque, and accelerator pedal opening.

[0135] It should be noted that the rotation noise of the auxiliary drive system is positively correlated with the target torque value. For example, as the rotation noise of the auxiliary drive system increases, the target torque value that needs to be applied to the auxiliary drive system increases.

[0136] It can be understood that by determining the target torque value applied by the auxiliary drive system through the rotational noise of the auxiliary drive system, the optimal torque applied by the auxiliary drive system can be determined, thereby maximizing the cruising range of the vehicle.

[0137] Figure 6 is a flow chart of another electric drive howling control method according to an exemplary embodiment. Figure 6 As shown, the electric drive howling control method includes the following steps:

[0138] S601: Obtain rotation noise of an auxiliary driving system of a vehicle, operation data of the vehicle, and operating status of a target device of the vehicle.

[0139] Exemplarily, the target device is a device that can affect the acoustic environment inside the vehicle.

[0140] The target device includes at least one of the following: a vehicle, a speaker, an air conditioner, and a low-speed warning sound device.

[0141] S602: Determine whether the target device is in an on state.

[0142] Exemplarily, when the target device is in an on state, jump to step S604; when the target device is in an off state, jump to step S603.

[0143] S603: Determine whether the rotation noise of the auxiliary drive system is greater than a preset noise value.

[0144] Exemplarily, when the rotation noise of the auxiliary drive system is greater than a preset noise value, the process jumps to step S607 ; when the rotation noise of the auxiliary drive system is less than or equal to the preset noise value, the process jumps to step S604 .

[0145] S604: Determine not to apply torque to the auxiliary drive system.

[0146] S605: Determine whether the vehicle speed enters a second speed interval from a first speed interval.

[0147] Exemplarily, when the vehicle speed enters the second speed interval from the first speed interval, the process jumps to step S601 ; when the vehicle speed does not enter the second speed interval from the first speed interval, the process jumps to step S606 .

[0148] S606: Determine whether the vehicle has traveled for a preset time period or a preset travel distance.

[0149] Exemplarily, after the vehicle has traveled a preset time period or a preset driving distance, the process jumps to step S601 ; when the vehicle has not traveled a preset time period or a preset driving distance, the process jumps to step S604 .

[0150] S607: Determine to apply torque to the auxiliary drive system.

[0151] S608: Determine whether a preset condition is met.

[0152] Exemplarily, when the preset condition is met, jump to step S609; when the preset condition is not met, jump to step S607.

[0153] Among them, the preset conditions include at least one of the following: after torque is applied to the auxiliary drive system, the vehicle speed enters the second speed range from the first speed range; after torque is applied to the auxiliary drive system, the vehicle's driving distance is greater than or equal to the preset distance; after torque is applied to the auxiliary drive system, the vehicle's driving time is greater than or equal to the preset time.

[0154] S609: Stop applying torque to the auxiliary drive system.

[0155] Exemplarily, after stopping applying torque to the auxiliary drive system, jump to step S601.

[0156] The above mainly introduces the solution provided by the embodiment of the present application from the perspective of the method. In order to achieve the above functions, the electric drive howling control device or electronic device includes hardware structures and / or software modules corresponding to the execution of each function. Those skilled in the art should easily realize that, in combination with the units and algorithm steps of each example described in the embodiments disclosed in this document, the present application can be implemented in the form of hardware or a combination of hardware and computer software. Whether a function is executed in the form of hardware or computer software driving hardware depends on the specific application and design constraints of the technical solution. Professional and technical personnel can use different methods to implement the described functions for each specific application, but such implementation should not be considered to exceed the scope of this application.

[0157] The embodiments of the present application can exemplarily divide the functional modules of the electric drive howling control device or the electronic device according to the above method. For example, the electric drive howling control device or the electronic device may include various functional modules corresponding to the various functional divisions, or two or more functions may be integrated into one processing module. The above integrated modules can be implemented in the form of hardware or in the form of software functional modules. It should be noted that the division of modules in the embodiments of the present application is schematic and is only a logical functional division. There may be other division methods in actual implementation.

[0158] Figure 7 A block diagram of an electric drive howling control device according to an exemplary embodiment is shown. Figure 7 The electric drive howling control device 700 includes: a communication module 701 and a processing module 702.

[0159] The communication module 701 is used to obtain the rotational noise of the auxiliary drive system of the vehicle and the working status of the target device of the vehicle; the target device is a device that can affect the acoustic environment inside the vehicle; the processing module 702 is used to determine whether to apply torque to the auxiliary drive system of the vehicle based on the rotational noise of the auxiliary drive system and the working status of the target device, and the torque is used to reduce the howling of the auxiliary drive system.

[0160] In a possible implementation, the processing module 702 is specifically configured to determine that the auxiliary drive system applies torque when the target device is in a closed state and the rotation noise of the auxiliary drive system is greater than a preset noise value.

[0161] In one possible implementation, the processing module 702 is specifically used to determine not to apply torque to the auxiliary drive system when the rotation noise of the auxiliary drive system is less than or equal to a preset noise value; or to determine not to apply torque to the auxiliary drive system when the rotation noise of the auxiliary drive system is greater than a preset noise value and the target device is in an on state.

[0162] In a possible implementation manner, the preset noise value is determined based on the driving state of the vehicle and a preset corresponding relationship; wherein the preset corresponding relationship is used to indicate a preset noise threshold value corresponding to the vehicle under different driving states.

[0163] In a possible implementation, the driving state of the vehicle is determined based on the operating data of the vehicle; the operating data of the vehicle includes at least one of the following: vehicle speed, motor speed, motor torque, and accelerator pedal opening.

[0164] In a possible implementation, the target device includes at least one of the following: a vehicle, a speaker, an air conditioner, and a low-speed warning sound device.

[0165] In one possible implementation, after determining that torque is applied to the auxiliary drive system of the vehicle, the processing module 702 is further used to stop applying torque to the auxiliary drive system if a preset condition is met; wherein the preset condition includes at least one of the following: after torque is applied to the auxiliary drive system, the vehicle speed enters a second speed range from a first speed range; after torque is applied to the auxiliary drive system, the vehicle's driving distance is greater than or equal to a preset distance; after torque is applied to the auxiliary drive system, the vehicle's driving time is greater than or equal to a preset time.

[0166] In a possible implementation, the communication module 701 is specifically used to obtain the rotational noise of the auxiliary drive system and the working state of the target device when the vehicle speed enters the second speed range from the first speed range; or, to obtain the rotational noise of the auxiliary drive system and the working state of the target device at every preset time period; or, to obtain the rotational noise of the auxiliary drive system and the working state of the target device every time a preset distance is traveled.

[0167] In a possible implementation manner, when it is determined that the auxiliary drive system of the vehicle applies torque, the processing module 702 is further configured to determine a target torque value applied to the auxiliary drive system based on the rotation noise of the auxiliary drive system.

[0168] Figure 8 FIG. 1 is a block diagram of an electronic device according to an exemplary embodiment. Figure 8 As shown, the electronic device 800 includes but is not limited to: a processor 801 and a memory 802 .

[0169] The memory 802 is used to store executable instructions of the processor 801. It can be understood that the processor 801 is configured to execute instructions to implement the electric drive howling control method in the above embodiment.

[0170] It should be noted that those skilled in the art can understand that Figure 8 The electronic device structure shown in the figure does not constitute a limitation on the electronic device, and the electronic device may include Figure 8 More or fewer components may be shown, or certain components may be combined, or the components may be arranged differently.

[0171] The processor 801 is the control center of the electronic device. It uses various interfaces and lines to connect various parts of the entire electronic device. By running or executing software programs and / or modules stored in the memory 802, and calling data stored in the memory 802, it performs various functions of the electronic device and processes data, thereby monitoring the electronic device as a whole. The processor 801 may include one or more processing units. Optionally, the processor 801 may integrate an application processor and a modem processor, wherein the application processor mainly processes the operating system, user interface, and application programs, and the modem processor mainly processes wireless communications. It is understandable that the above-mentioned modem processor may not be integrated into the processor 801.

[0172] The memory 802 may be used to store software programs and various data. The memory 802 may mainly include a program storage area and a data storage area, wherein the program storage area may store an operating system, an application program required by at least one functional module (such as a determination unit, a processing unit, etc.), etc. In addition, the memory 802 may include a high-speed random access memory, and may also include a non-volatile memory, such as at least one disk storage device, a flash memory device, or other volatile solid-state storage devices.

[0173] In an exemplary embodiment, a computer-readable storage medium including instructions is also provided, such as a memory 802 including instructions. The above instructions can be executed by a processor 801 of an electronic device 800 to implement the electric drive howling control method in the above embodiment.

[0174] In actual implementation, Figure 7 The functions of the communication module 701 and the processing module 702 in the embodiment can be represented by Figure 8 The processor 801 in the embodiment calls the computer program stored in the memory 802. The specific execution process can refer to the description of the method part in the above embodiment, which will not be repeated here.

[0175] Optionally, the computer-readable storage medium may be a non-temporary computer-readable storage medium, for example, the non-temporary computer-readable storage medium may be a read-only memory (ROM), a random access memory (RAM), a CD-ROM, a magnetic tape, a floppy disk, an optical data storage device, etc.

[0176] In an exemplary embodiment, the embodiment of the present application further provides a computer program product including one or more instructions, and the one or more instructions can be executed by the processor 801 of the electronic device to implement the electric drive howling control method in the above embodiment.

[0177] It should be noted that when the instructions in the above-mentioned computer-readable storage medium or one or more instructions in the computer program product are executed by the processor of the electronic device, the various processes of the above-mentioned method embodiment are implemented, and the same technical effect as the above-mentioned method can be achieved. To avoid repetition, they will not be repeated here.

[0178] Through the description of the above implementation methods, technical personnel in the relevant field can clearly understand that for the convenience and simplicity of description, only the division of the above-mentioned functional modules is used as an example. In actual applications, the above-mentioned functions can be assigned to different functional modules as needed, that is, the internal structure of the device can be divided into different functional modules to complete all or part of the functions described above.

[0179] In the several embodiments provided in the present application, it should be understood that the disclosed devices and methods can be implemented in other ways. For example, the device embodiments described above are only schematic, for example, the division of modules or units is only a logical function division, and there may be other division methods in actual implementation, such as multiple units or components can be combined or integrated into another device, or some features can be ignored or not executed. Another point is that the mutual coupling or direct coupling or communication connection shown or discussed can be through some interfaces, indirect coupling or communication connection of devices or units, which can be electrical, mechanical or other forms.

[0180] The units described as separate components may or may not be physically separated, and the components shown as units may be one physical unit or multiple physical units, that is, they may be located in one place or distributed in multiple different places. Some or all of the units may be selected according to actual needs to achieve the purpose of the present embodiment.

[0181] In addition, each functional unit in each embodiment of the present application may be integrated into one processing unit, or each unit may exist physically separately, or two or more units may be integrated into one unit. The above-mentioned integrated unit may be implemented in the form of hardware or in the form of software functional units.

[0182] If 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 readable storage medium. Based on this understanding, the technical solution of the embodiment of the present application is essentially or the part that contributes to the prior art or the full classification part or part of the technical solution can be embodied in the form of a software product, which is stored in a storage medium, including a number of instructions to enable a device (which can be a single-chip microcomputer, chip, etc.) or a processor (processor) to execute the full classification part or part of the steps of each embodiment method of the present application. The aforementioned storage medium includes: U disk, mobile hard disk, ROM, RAM, disk or CD and other media that can store program code.

[0183] The above are only specific implementations of the present application, but the protection scope of the present application is not limited thereto, and any changes or substitutions within the technical scope disclosed in the present application should be included in the protection scope of the present application. Therefore, the protection scope of the present application should be based on the protection scope of the claims.

Claims

1. A method for controlling electric drive howling, characterized in that: The electric drive howling control method comprises: Acquiring the rotation noise of the auxiliary drive system of the vehicle and the working state of the target device of the vehicle; the target device is a device that can affect the acoustic environment inside the vehicle; Based on the rotation noise of the auxiliary drive system and the working state of the target device, it is determined whether to apply torque to the auxiliary drive system of the vehicle, wherein the torque is used to reduce the whistling of the auxiliary drive system.

2. The electric drive howling control method according to claim 1, characterized in that: The determining whether to apply torque to the auxiliary drive system of the vehicle based on the rotation noise of the auxiliary drive system and the working state of the target device includes: When the target device is in a closed state and the rotation noise of the auxiliary drive system is greater than a preset noise value, it is determined that the auxiliary drive system applies torque.

3. The electric drive howling control method according to claim 1, characterized in that: The determining whether to apply torque to the auxiliary drive system of the vehicle based on the rotation noise of the auxiliary drive system and the working state of the target device includes: In a case where the rotation noise of the auxiliary drive system is less than or equal to a preset noise value, determining not to apply torque to the auxiliary drive system; or, When the rotation noise of the auxiliary drive system is greater than a preset noise value and the target device is in an on state, it is determined that no torque is applied to the auxiliary drive system.

4. The electric drive howling control method according to claim 2 or 3, characterized in that: The preset noise value is determined based on the driving state of the vehicle and a preset corresponding relationship; wherein the preset corresponding relationship is used to indicate the preset noise threshold value corresponding to the vehicle under different driving states.

5. The electric drive howling control method according to claim 4, characterized in that: The driving state of the vehicle is determined based on the operating data of the vehicle; the operating data of the vehicle includes at least one of the following: vehicle speed, motor speed, motor torque, and accelerator pedal opening.

6. The electric drive howling control method according to any one of claims 1 to 3, characterized in that: The target device includes at least one of the following: a car window, a speaker, an air conditioner, and a low-speed warning sound device.

7. The electric drive howling control method according to any one of claims 1 to 3, characterized in that: After determining to apply torque to the auxiliary drive system of the vehicle, the electric drive howling control method further includes: When a preset condition is met, stop applying torque to the auxiliary drive system; wherein the preset condition includes at least one of the following: After applying torque to the auxiliary drive system, the vehicle speed enters a second speed interval from a first speed interval; After applying torque to the auxiliary drive system, the vehicle travels a distance greater than or equal to a preset distance; After applying torque to the auxiliary drive system, the vehicle travels for a time greater than or equal to a preset time.

8. The electric drive howling control method according to any one of claims 1 to 3, characterized in that: The obtaining of the rotation noise of the auxiliary driving system of the vehicle and the working state of the target equipment of the vehicle includes: When the vehicle speed enters the second speed interval from the first speed interval, obtaining the rotation noise of the auxiliary drive system and the working state of the target device; or Acquire the rotation noise of the auxiliary drive system and the working state of the target device at every preset time interval; or The rotation noise of the auxiliary drive system and the working state of the target device are obtained every time a preset distance is traveled.

9. The electric drive howling control method according to claim 1, characterized in that: In the case where it is determined that the torque is applied to the auxiliary drive system of the vehicle, the electric drive howling control method further includes: A target torque value applied to the auxiliary drive system is determined based on the rotational noise of the auxiliary drive system.

10. An electric drive howling control device, characterized in that: The electric drive howling control device comprises: a communication module and a processing module; A communication module, used to obtain the rotation noise of the auxiliary drive system of the vehicle and the working state of the target equipment of the vehicle; The processing module is used to determine whether to apply torque to the auxiliary drive system of the vehicle based on the rotation noise of the auxiliary drive system and the working state of the target device, wherein the torque is used to reduce the whistling of the auxiliary drive system.

11. An electronic device, characterized in that: It comprises a processor and a memory, the processor is coupled to the memory; the memory is used to store computer instructions, the computer instructions are loaded and executed by the processor so that the computer device implements the electric drive howling control method as described in any one of claims 1 to 9.

12. A vehicle, characterized in that: Comprising the electronic device as claimed in claim 11.

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