Suspension control method and device, electronic device, storage medium, vehicle
By controlling the damping coefficient and height of the suspension through the wind speed equivalent coefficient, the problem of crosswinds affecting vehicle safety and stability is solved, and safety and stability are improved in crosswind environments.
Patent Information
- Application Number
- CN202410585469.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- Filing Date
- 2024-05-11
- Publication Date
- 2025-12-12
- Estimated Expiration
- 2044-05-11
AI Technical Summary
Existing technologies are insufficient to effectively address the impact of crosswinds on vehicle safety and stability, leading to safety hazards for vehicles in crosswind environments.
By using an equivalent wind speed coefficient to control the suspension, the damping coefficient and height of the suspension are determined by the rate of change of crosswind speed or wind speed. This includes adjusting the damping coefficient and height of the suspension under different wind speed conditions to maintain the lateral stability of the vehicle.
It improves the safety and stability of vehicles in crosswind environments, reduces the threat of crosswinds to vehicle safety, and enhances safety during driving.
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Figure CN118478637B_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The present application relates to the field of vehicle control, and in particular to a suspension control method and device, an electronic device, a storage medium, and a vehicle. BACKGROUND
[0002] With the increasing number of cars and car accidents, the safety performance of cars is attracting more and more attention around the world. How to improve the safety of car driving has become the common research direction. The lateral wind has a great influence on the safety and stability of the car. Based on the active suspension, when the lateral wind comes, certain measures are taken to resist the influence of the lateral wind and maintain the lateral stability of the car, which can better solve the hidden dangers and threats to the safety of the car caused by the lateral wind. SUMMARY
[0003] The present application aims to at least solve one of the technical problems in the related art. To this end, one object of the present application is to provide a suspension control method having the advantage of being able to maintain the lateral stability of the car and solve the hidden dangers and threats to the safety of the car caused by the lateral wind.
[0004] According to a first aspect of an embodiment of the present application, a suspension control method is provided, comprising:
[0005] controlling the suspension by using a wind speed equivalent coefficient;
[0006] wherein the wind speed equivalent coefficient is determined by at least a wind speed change rate or a wind speed of the lateral wind.
[0007] In an exemplary embodiment of the present disclosure, the wind speed equivalent coefficient is determined according to the wind speed change rate and the wind speed.
[0008] In an exemplary embodiment of the present disclosure, the wind speed equivalent coefficient is determined according to the weighted values of the wind speed change rate and the wind speed.
[0009] In an exemplary embodiment of the present disclosure, the controlling the suspension by using the wind speed equivalent coefficient comprises:
[0010] if the wind speed equivalent coefficient is greater than or equal to a first preset threshold and less than a second preset threshold, increasing the damping coefficient of the suspension.
[0011] In an exemplary embodiment of the present disclosure, the controlling the suspension by using the wind speed equivalent coefficient comprises:
[0012] if the wind speed equivalent coefficient is greater than or equal to a second preset threshold, adjusting the height of the suspension by using the wind speed equivalent coefficient.
[0013] In an example embodiment of the present disclosure, the adjusting the height of the suspension based on the wind speed equivalent coefficient comprises:
[0014] If the wind speed equivalent coefficient is greater than or equal to a second preset threshold value and less than a third preset threshold value, the height of all suspensions of the vehicle is set to a first preset height threshold value.
[0015] In an example embodiment of the present disclosure, the adjusting the height of the suspension based on the wind speed equivalent coefficient comprises:
[0016] If the wind speed equivalent coefficient is greater than or equal to a third preset threshold value, the height of the suspension is adjusted based on the wind direction of the crosswind.
[0017] In an example embodiment of the present disclosure, the adjusting the height of the suspension based on the wind direction of the crosswind comprises:
[0018] If the wind direction is left crosswind, the height of the left suspension is compressed to a second preset height threshold value, and the height of the right suspension is set to a first preset height threshold value, the second preset height threshold value being less than the first preset height threshold value;
[0019] If the wind direction is right crosswind, the height of the right suspension is compressed to the second preset height threshold value, and the height of the left suspension is set to the first preset height threshold value.
[0020] In an example embodiment of the present disclosure, the wind speed change rate is determined by using a ratio of a wind speed difference value to a time interval;
[0021] wherein the wind speed difference value is a difference between a wind speed collected at a first time and a wind speed collected at a second time, the time interval is a time interval between the first time and the second time, and the first time is later than the second time;
[0022] Alternatively, the wind speed change rate is obtained by time derivation of a wind speed function, the wind speed function being a function of wind speed change over time.
[0023] According to a second aspect of the present disclosure, a computer readable storage medium is provided, when instructions in the computer readable storage medium are executed by a processor of an electronic device, the electronic device is enabled to perform the suspension control method as any one of the first aspect.
[0024] According to a third aspect of the present disclosure, an electronic device is provided, comprising:
[0025] a processor;
[0026] a memory for storing instructions executable by the processor;
[0027] The processor is configured to execute the instructions to implement the suspension control method according to any one of the first aspect.
[0028] According to a fourth aspect of the present disclosure, a suspension control device is provided, comprising:
[0029] A suspension control module is configured to control the suspension by using a wind speed equivalent coefficient.
[0030] The wind speed equivalent coefficient is determined by at least a wind speed variation rate or a wind speed of the lateral wind.
[0031] According to a fifth aspect of the present disclosure, a vehicle is provided, comprising the suspension control device according to the third aspect or the electronic device according to the fourth aspect.
[0032] In summary, the suspension control method provided by the present disclosure can actively maintain the lateral stability of the vehicle by using the wind speed equivalent coefficient to control the suspension when the lateral wind comes, thereby reducing the hidden danger and threat of the lateral wind to the safety of the vehicle and improving the safety during driving.
[0033] Additional aspects and advantages of the present application will be given in part in the following description, become apparent from the following description, or be understood by practice of the present application. BRIEF DESCRIPTION OF DRAWINGS
[0034] Figure 1 is a flow chart of a suspension control method according to an exemplary embodiment;
[0035] Figure 2 is a structural schematic diagram of a suspension according to an exemplary embodiment;
[0036] Figure 3 is a block diagram of a suspension control device according to an exemplary embodiment;
[0037] Figure 4 is a schematic diagram of a storage medium according to an exemplary embodiment;
[0038] Figure 5 is a block diagram of an electronic device according to an exemplary embodiment. DETAILED DESCRIPTION
[0039] Embodiments of the present application are described below in detail with reference to the accompanying drawings, wherein the same or similar components or components having the same or similar functions are denoted by the same or similar reference numerals throughout. The embodiments described below by reference to the accompanying drawings are exemplary and are intended to explain the present application, and cannot be understood as a limitation of the present application.
[0040] The suspension control method of the embodiments of the present application is described below with reference to the accompanying drawings. Referring to Figure 1 The suspension control method described above can include the following steps:
[0041] S1, controlling the suspension by using a wind speed equivalent coefficient; wherein the wind speed equivalent coefficient is determined by at least a wind speed variation rate or a wind speed of the lateral wind.
[0042] In summary, the suspension control method provided by the present disclosure, since the wind speed equivalent coefficient is determined by at least the wind speed variation rate or the wind speed of the lateral wind, i.e. the wind speed equivalent coefficient can at least reflect the size of the wind speed or the trend of the wind speed of the lateral wind, therefore when the lateral wind comes, the suspension is controlled by using the wind speed equivalent coefficient, which can actively rely on the suspension to maintain the lateral stability of the vehicle, thereby reducing the hidden dangers and threats to the safety of the vehicle caused by the lateral wind and improving the safety during driving.
[0043] Next, each step in Figure 1 is described in detail in conjunction with specific embodiments:
[0044] In an exemplary embodiment of the present disclosure, the wind speed variation rate is determined by the ratio of the wind speed difference value to the time interval;
[0045] wherein the wind speed difference value is the difference between the wind speed collected at the first time and the wind speed collected at the second time, the time interval is the time interval between the first time and the second time, and the first time is later than the second time.
[0046] Alternatively, the wind speed variation rate is obtained by taking the time derivative of the wind speed function, the wind speed function is a function of the wind speed changing with time, and the wind speed function can be obtained by fitting the wind speed collected at multiple times.
[0047] In the embodiments of the present disclosure, a plurality of lateral wind sensors can be provided outside the vehicle to collect the wind speed and direction of the lateral wind outside the vehicle. For example, lateral wind sensors can be installed on the top, front side, rear side, etc. of the vehicle to detect the wind speed and direction of the lateral wind in real time. For example, when the wind speed of the lateral wind collected by the lateral wind sensor is positive, it indicates that the wind direction of the lateral wind is from the left side; when the wind speed of the lateral wind collected by the lateral wind sensor is negative, it indicates that the wind direction of the lateral wind is from the right side.
[0048] In an example embodiment of the present disclosure, the wind speed variation rate can be determined based on the wind speed collected by one lateral wind sensor.
[0049] Optionally, a plurality of historical wind speed variation rates determined before the wind speed variation rate can be obtained, and the plurality of historical wind speed variation rates and the wind speed variation rate can be filtered to obtain a final wind speed variation rate.
[0050] For example, the filtering process can be to discard the maximum and minimum values in the plurality of historical wind speed variation rates and the wind speed variation rate, and then determine the average value of the remaining wind speed variation rates. The average value can be taken as the final wind speed variation rate.
[0051] In an example embodiment of the present disclosure, for each lateral wind sensor, a wind speed variation rate can be determined based on the wind speed collected by the lateral wind sensor, thereby obtaining a plurality of wind speed variation rates, and the average value of the plurality of wind speed variation rates can be determined as the final wind speed variation rate.
[0052] Optionally, for each lateral wind sensor, a plurality of historical wind speed variation rates determined before the wind speed variation rate can be obtained, and the plurality of historical wind speed variation rates and the wind speed variation rate can be filtered to obtain a wind speed variation rate corresponding to the lateral wind sensor.
[0053] In an example embodiment of the present disclosure, the wind speed equivalent coefficient is determined according to the wind speed variation rate, or the wind speed equivalent coefficient is determined according to the wind speed, or the wind speed equivalent coefficient is determined according to the wind speed variation rate and the wind speed.
[0054] Optionally, the wind speed equivalent coefficient is determined according to the wind speed variation rate and the wind speed.
[0055] In an example embodiment of the present disclosure, the wind speed equivalent coefficient can be determined by the following formula:
[0056] Fac=Kf1*Vf+Kf2*dVf (1);
[0057] Wherein, Fac represents the wind speed equivalent coefficient; Vf represents the wind speed; Kf1 represents the wind speed weight; Kf2 represents the wind speed variation rate weight; dVf represents the wind speed variation rate.
[0058] The wind speed equivalent coefficient Fac reflects the size of the current vehicle's outside lateral wind speed and the trend of the wind speed variation, and thus can better predict the future wind speed variation trend according to the wind speed and the wind speed variation rate.
[0059] Next, how to determine the wind speed Vf in formula (1) is described.
[0060] In an example embodiment of the present disclosure, for each side wind sensor, the multiple wind speeds collected by the side wind sensor are pre-processed, for example, the maximum value and the minimum value of the multiple wind speeds collected by the side sensor are discarded to obtain a more accurate wind speed. Then, the average value of the remaining wind speeds is obtained, which is the average wind speed corresponding to the side wind sensor. Further, after obtaining the average wind speed corresponding to each side wind sensor, the sum of all average wind speeds is determined, and then the ratio of the sum of the average wind speeds to the number of side wind sensors is determined, and the ratio of the sum of the average wind speeds to the number of side wind sensors is the wind speed Vf.
[0061] In step S1, the suspension is controlled using the wind speed equivalent coefficient.
[0062] Based on the above, in an example embodiment of the present disclosure, the above-mentioned control of the suspension using the wind speed equivalent coefficient comprises:
[0063] S11, if the wind speed equivalent coefficient is greater than or equal to a first preset threshold and less than a second preset threshold, the damping coefficient of the suspension is increased.
[0064] Wherein, the second preset threshold is greater than the first preset threshold.
[0065] In an example embodiment of the present disclosure, when the absolute value of the wind speed equivalent coefficient Fac is less than the first preset threshold Fac1, it is considered that the wind speed of the side wind is small and will not affect the lateral stability of the vehicle, and the working state of the suspension is not affected by the wind speed equivalent coefficient Fac, so there is no need to adjust the damping coefficient of the suspension or to intervene in the control of the suspension.
[0066] In an example embodiment of the present disclosure, when the absolute value of the wind speed equivalent coefficient Fac is greater than or equal to the first preset threshold Fac1 and less than the second preset threshold Fac2, it is considered that the wind speed of the side wind is moderate, which has a certain influence on the lateral stability of the vehicle. Considering the stability of the vehicle, the damping coefficient of the suspension is increased at this time, which can improve the stability of the vehicle. For example, the damping coefficient of the suspension is adjusted to a larger preset damping coefficient. Since the wind speed is moderate at this time, the height of the vehicle suspension can not be intervened, thereby ensuring the passability and other performances of the vehicle, so that the vehicle can stably travel at a moderate wind speed.
[0067] Based on the above, in an example embodiment of the present disclosure, the above-mentioned control of the suspension using the wind speed equivalent coefficient comprises:
[0068] S12, if the wind speed equivalent coefficient is greater than or equal to a second preset threshold, adjusting the height of the suspension using the wind speed equivalent coefficient.
[0069] Based on the above, adjusting the height of the suspension using the wind speed equivalent coefficient includes:
[0070] S121, if the wind speed equivalent coefficient is greater than or equal to a second preset threshold and less than a third preset threshold, setting the height of all suspensions of the vehicle to a first preset height threshold.
[0071] Wherein, the third preset threshold is greater than the second preset threshold.
[0072] In an exemplary embodiment of the present disclosure, when the absolute value of the wind speed equivalent coefficient Fac is greater than or equal to the second preset threshold Fac2 and less than the third preset threshold Fac3, it is considered that the wind speed of the lateral wind is relatively large, which has a great impact on the lateral stability of the vehicle. Considering the stability of the vehicle, the height of the suspension is controlled to compress to the first preset height threshold, thereby reducing the vehicle ride height and improving the driving stability of the vehicle.
[0073] Based on the above, in an exemplary embodiment of the present disclosure, adjusting the height of the suspension using the wind speed equivalent coefficient includes:
[0074] S122, if the wind speed equivalent coefficient is greater than or equal to a third preset threshold, adjusting the height of the suspension based on the wind direction of the lateral wind.
[0075] In an exemplary embodiment of the present disclosure, when the absolute value of the wind speed equivalent coefficient Fac is greater than or equal to the third preset threshold Fac3, it is considered that the wind speed of the lateral wind is very large, which will seriously affect the lateral stability of the vehicle. Different actions need to be taken on the left and right suspensions of the vehicle to improve the ability to resist lateral wind.
[0076] In an exemplary embodiment of the present disclosure, adjusting the height of the suspension based on the wind direction of the lateral wind includes:
[0077] S1221, if the wind direction is left wind, compressing the height of the left suspension to a second preset height threshold and setting the height of the right suspension to a first preset height threshold, the second preset height threshold being less than the first preset height threshold;
[0078] S1222, if the wind direction is right wind, compressing the height of the right suspension to the second preset height threshold and setting the height of the left suspension to the first preset height threshold.
[0079] When the wind direction is left wind, the height of the left suspension is continuously compressed to the second preset height threshold value, so that the left suspension is compressed to a lower attitude and remains in the lower attitude, the right suspension is maintained at the first preset height threshold value, a certain height difference is formed between the left and right sides, so that the vehicle is tilted to a certain angle to the left side while ensuring that the chassis is low; when the wind direction is right wind, the height of the right suspension is continuously compressed to the second preset height threshold value, so that the right suspension is compressed to a lower attitude and remains in the lower attitude, the left suspension is maintained at the first preset height threshold value, a certain height difference is formed between the left and right sides, so that the vehicle is tilted to a certain angle to the right side while ensuring that the chassis is low. By controlling the height of the chassis and the height difference between the left and right sides, the ability of the vehicle to resist lateral wind is improved, and the stability of the vehicle is maintained.
[0080] Next, combined with Figure 2 The control of the suspension of the vehicle is described. Figure 2 is a structural diagram of a suspension according to an exemplary embodiment. As Figure 2 shown, the suspension used in the present application is an active suspension. Among them, the first spring 203, the motor 204 and the hydraulic device 205 are arranged between the suspension 201 and the wheel 202, and the second spring 206 is arranged under the wheel. Specifically, the active force F can be applied to the motor 204, and the active force F is the active force applied to the active suspension. Further, the suspension of the vehicle is controlled by the following formula:
[0081]
[0082] Among them, Ms is the distribution mass at the mass center of the vehicle body (i.e. the spring mass), Mw is the mass of the wheel, Zs is the spring displacement, Zw is the non-spring displacement, Ks is the elastic stiffness of the suspension, C is the damping coefficient of the suspension, F is the active force applied to the active suspension, Kw is the elastic stiffness of the tire, q represents the road excitation, which is a constant, and t represents time.
[0083] That is, after the active force F is applied to the motor 204, the active force F, the spring mass Ms, the wheel mass Mw and the road excitation q are substituted into formula (2), so that the spring displacement Zs (i.e. the compression amount of the first spring), the non-spring displacement Zw (i.e. the compression amount of the second spring) and the damping coefficient C on the hydraulic device 205 can be obtained. The damping coefficient C is the damping coefficient of the suspension.
[0084] Further, according to the fact that Zs is the sprung displacement and Zw is the unsprung displacement, the height of the suspension can be determined according to the displacement. For example, before the pressing active force F, the height of the suspension is the default initial height. If it is determined according to the wind speed that the height of the suspension needs to be adjusted to the first preset height, and the damping coefficient needs to be set to the preset damping coefficient C, the total displacement corresponding to the adjustment of the height of the suspension from the initial height to the first preset height (i.e. the height difference between the initial height and the first preset height) is first determined, and the total displacement is the sum of the sprung displacement Zs and the unsprung displacement Zw, and then formula (2) is used to determine the sprung displacement Zs, the unsprung displacement Zw and F. Then, according to the determined value of F, the corresponding active force F is applied to the motor 204, so that the height of the suspension is adjusted to the first preset height, and the damping coefficient of the suspension is set to the preset damping coefficient C.
[0085] By using the above method, the damping coefficient and the active force of the active suspension can be adjusted, and the damping coefficient and the active force of the active suspension can be adjusted in response to the damping coefficient and the active force output by the lateral wind stabilization system controller, so that the height of the vehicle body, the inclination angle of the vehicle body and other parameters can be adjusted.
[0086] In summary, the suspension control method provided by the present disclosure can better predict the future wind speed trend according to the wind speed and the wind speed change rate when the wind speed equivalent coefficient is used to control the suspension, and can control the vehicle body posture in advance when controlling the suspension, thereby improving the intelligence and responsiveness of the control method. Further, the suspension control method provided by the present disclosure can control the suspension to make corresponding actions according to the determined wind speed equivalent coefficient and wind direction to resist the interference of lateral wind on the vehicle, so as to ensure that the vehicle has good lateral stability when encountering lateral wind. In addition, the suspension control method provided by the present disclosure can control the damping coefficient at a medium wind speed, reduce the height of the vehicle body at a large wind speed, and control the left and right suspensions to maintain a height difference at a very large wind speed, so that the vehicle body has a certain inclination angle, thereby better controlling the stability of the vehicle body under different degrees of lateral wind influence.
[0087] After introducing the suspension control method of the exemplary embodiment of the present application, next, with reference to Figure 3 The suspension control device of the exemplary embodiment of the present application is described.
[0088] With reference to Figure 3 The suspension control device 30 of the exemplary embodiment of the present application can include a suspension control module 301;
[0089] The suspension control module 301 is configured to control the suspension of the vehicle by using the wind speed equivalent coefficient.
[0090] The wind speed equivalent coefficient is determined according to the wind speed variation rate and the wind speed.
[0091] In an example embodiment of the present disclosure, the wind speed equivalent coefficient is determined according to a weighted value of the wind speed variation rate and the wind speed.
[0092] In an example embodiment of the present disclosure, the wind speed equivalent coefficient is determined according to a weighted value of the wind speed variation rate and the wind speed.
[0093] In an example embodiment of the present disclosure, the suspension control module comprises:
[0094] The damping coefficient adjustment unit is configured to increase the damping coefficient of the suspension if the wind speed equivalent coefficient is greater than or equal to a first preset threshold value and less than a second preset threshold value.
[0095] In an example embodiment of the present disclosure, the suspension control module comprises:
[0096] The suspension height adjustment unit is configured to adjust the height of the suspension using the wind speed equivalent coefficient if the wind speed equivalent coefficient is greater than or equal to the second preset threshold value.
[0097] In an example embodiment of the present disclosure, the suspension height adjustment unit comprises:
[0098] The first suspension height adjustment sub-unit is configured to set the height of all suspensions of the vehicle to a first preset height threshold value if the wind speed equivalent coefficient is greater than or equal to the second preset threshold value and less than a third preset threshold value.
[0099] In an example embodiment of the present disclosure, the suspension height adjustment unit comprises:
[0100] The height of the suspension is adjusted based on the wind direction of the side wind if the wind speed equivalent coefficient is greater than or equal to the third preset threshold value.
[0101] In an example embodiment of the present disclosure, the suspension height adjustment unit comprises:
[0102] The first left-side suspension height adjustment unit is configured to compress the height of the left-side suspension to a second preset height threshold value if the wind direction is left-side wind.
[0103] The first right-side suspension height adjustment unit is configured to set the height of the right-side suspension to the first preset threshold value, and the second preset height threshold value is less than the first preset height threshold value.
[0104] The second left-side suspension height adjustment unit is configured to compress the height of the right-side suspension to the second preset height threshold value if the wind direction is right-side wind.
[0105] The second right suspension height adjustment unit is configured to set the height of the left suspension to the first preset threshold value.
[0106] Since the respective functional modules of the suspension control device according to the embodiments of the present application are the same as those in the above-mentioned suspension control method embodiments, no further description is given herein.
[0107] Having described the suspension control method and the suspension control device according to the exemplary embodiments of the present application, next, the storage medium according to the exemplary embodiments of the present application is described with reference to Figure 4 The storage medium according to the exemplary embodiments of the present application is described with reference to Figure 4 As shown in Fig. 4, a program product 400 for implementing the above-mentioned method according to the embodiments of the present application is described, which can take the form of a portable compact disc read-only memory (CD-ROM) and include program code, and can be run on a device, such as a personal computer. However, the program product of the present application is not limited thereto, and in this document, the readable storage medium can be any tangible medium that contains or stores a program, which can be used by or in connection with an instruction execution system, apparatus, or device.
[0108] The program product can take any combination of one or more readable media. The readable medium can be a readable signal medium or a readable storage medium. The readable storage medium, for example, can be, but is not limited to, an electronic, magnetic, optical, electromagnetic, infrared, or semiconductor system, apparatus, or device, or any combination thereof. More specific examples (a non-exhaustive list) of the readable storage medium include an electrical connection having one or more wires, a portable disc, a hard disk, a random access memory (RAM), a read-only memory (ROM), an erasable programmable read-only memory (EPROM or flash memory), an optical fiber, a portable compact disc read-only memory (CD-ROM), an optical storage device, a magnetic storage device, or any suitable combination thereof.
[0109] The computer readable signal medium can include a data signal propagated in baseband or propagated as a carrier wave in a propagated data signal, in which the readable program code is embodied. Such propagated data signal can take multiple forms, including but not limited to an electromagnetic signal, an optical signal, or any suitable combination thereof. The readable signal medium can also be any readable medium that is not a readable storage medium and that can transmit, propagate, or transport the program for use by or in connection with an instruction execution system, apparatus, or device.
[0110] The program code embodied on the computer readable medium can be transmitted using any appropriate medium, including but not limited to wireless, wired, optical fiber cable, RF, etc., or any suitable combination of the foregoing. Computer program code for carrying out operations for aspects of the present application can be written in any combination of one or more programming languages, including an object oriented programming language such as Java, C++ or the like and conventional procedural programming languages, such as the "C" programming language or similar programming languages. The program code can execute entirely on the user's computing device, partly on the user's computing device, as a stand-alone software package, partly on the user's computing device and partly on a remote computing device or entirely on the remote computing device or server. In the latter scenario, the remote computing device can be connected to the user's computing device through any type of network, including a local area network (LAN) or a wide area network (WAN), or the connection can be made to an external computing device, such as through the Internet using an Internet Service Provider.
[0111] Having introduced the storage medium of the exemplary embodiments of the present application, next, the exemplary embodiments of the present application will be described with reference to Figure 5 An electronic device of the exemplary embodiments of the present application will be described.
[0112] Figure 5 The electronic device 50 shown is merely an example and should not limit the function and scope of use of the embodiments of the present application.
[0113] As Figure 5 shown, the electronic device 50 is in the form of a general purpose computing device. Components of the electronic device 50 can include, but are not limited to, the at least one processing unit 510 described above, the at least one storage unit 520 described above, a bus 530 that connects the various system components, including the storage unit 520 and the processing unit 510, a display unit 540. The storage unit stores program code that can be executed by the processing unit 510, causing the processing unit 510 to perform the steps described in the "Exemplary Methods" section of this specification according to various exemplary embodiments of the present application. For example, the processing unit 510 can perform the steps S1 to S3 as shown in Figure 1
[0114] The storage unit 520 can include volatile storage units, such as random access memory (RAM) 5201 and / or cache memory 5202, and non-volatile storage units, such as read-only memory (ROM) 5203. The storage unit 520 can also include removable storage units, such as a floppy disk drive, a hard disk drive, or a CD-ROM drive, and / or a storage unit interface providing access to the removable storage units. The storage unit 520 can further include a program / utility 5204 having a set of program modules 5205 that include, but are not limited to, an operating system, one or more application programs, other program modules, and program data, each of which can include an implementation of a networking environment.
[0115] Bus 530 can include a data bus, an address bus, and a control bus.
[0116] Electronic device 50 can also communicate with one or more external devices 60 such as a keyboard or pointing device, a Bluetooth device, etc. through input / output (I / O) interface 550. Electronic device 50 also includes a display unit 540, which is coupled to input / output (I / O) interface 550 for displaying information to a user. In addition, electronic device 50 can communicate with one or more networks, such as a local area network (LAN), a wide area network (WAN), and / or a public network, such as the Internet, through network adapter 560. As depicted, network adapter 560 communicates with the other modules of electronic device 50 through bus 530. It should be appreciated that other hardware and / or software modules can be used in conjunction with electronic device 50, including but not limited to, microcode, device drivers, redundant processing units, external disk drive arrays, RAID systems, tape drives, and data backup storage systems, etc. It should be noted that although several modules or sub-modules of the suspension control device are mentioned in the foregoing detailed description, such division is merely exemplary and not mandatory. Indeed, features and functions of two or more units / modules described above can be embodied in one unit / module according to embodiments of the present application. Conversely, features and functions of one unit / module described above can be further divided into units / modules.
[0117] The present application also provides a vehicle comprising a suspension control device as shown in Figure 3 or an electronic device as shown in Figure 5 .
[0118] Furthermore, although the operations of the method(s) of the present application are described in a particular, sequential order for purposes of illustration, this is not intended to be a requirement. Rather, the operations of the method(s) can be performed in any order, or in parallel, or in any suitable formation. In addition, or alternatively, certain of the steps can be rendered unnecessary or can be performed in a different order by, for example, using hardware or software configured to operate in a different manner, or by using a different arrangement of the structures illustrated in the figures. Also, the description and illustrations are by way of example only, and several things can change from the described arrangement without departing from the scope of the present application.
[0119] While the principles and spirit of the application have been described with reference to several specific embodiments, it is to be understood that the application is not limited to the disclosed embodiments, and that aspects can be combined to benefit from the features thereof, such division being made for the convenience of description only. The application is intended to cover any and all modifications and equivalent arrangements within the scope and spirit of the claims appended hereto.
Claims
1. A suspension control method characterized by, The method comprises: controlling the suspension by using a wind speed equivalent coefficient; wherein the wind speed equivalent coefficient is determined by at least a wind speed variation rate or a wind speed of the crosswind; the controlling the suspension by using the wind speed equivalent coefficient comprises: if the wind speed equivalent coefficient is greater than or equal to a second preset threshold, adjusting a height of the suspension by using the wind speed equivalent coefficient; the adjusting the height of the suspension by using the wind speed equivalent coefficient comprises: if the wind speed equivalent coefficient is greater than or equal to a third preset threshold, adjusting the height of the suspension based on a wind direction of the crosswind; the adjusting the height of the suspension based on the wind direction of the crosswind comprises: if the wind direction is left crosswind, compressing a height of a left suspension to a second preset height threshold and setting a height of a right suspension to a first preset height threshold, the second preset height threshold being less than the first preset height threshold; if the wind direction is right crosswind, compressing the height of the right suspension to the second preset height threshold and setting the height of the left suspension to the first preset height threshold.
2. The method of claim 1, wherein, The wind speed equivalent coefficient is determined according to the wind speed variation rate and the wind speed.
3. The method of claim 2, wherein, The wind speed equivalent coefficient is determined according to a weighted value of the wind speed variation rate and the wind speed.
4. The method of claim 1, wherein, The controlling the suspension by using the wind speed equivalent coefficient comprises: if the wind speed equivalent coefficient is greater than or equal to a first preset threshold and less than a second preset threshold, increasing a damping coefficient of the suspension.
5. The method of claim 1, wherein, The adjusting the height of the suspension by using the wind speed equivalent coefficient comprises: if the wind speed equivalent coefficient is greater than or equal to the second preset threshold and less than a third preset threshold, setting the height of all suspensions of the vehicle to a first preset height threshold.
6. The method according to any one of claims 1 to 5, characterized in that, The wind speed variation rate is determined by a ratio of a wind speed difference value to a time interval; wherein the wind speed difference value is a difference between a wind speed collected at a first time and a wind speed collected at a second time, and the time interval is a time interval between the first time and the second time, the first time being later than the second time; or, the wind speed variation rate is obtained by time derivation of a wind speed function, the wind speed function being a function of wind speed change over time.
7. A computer readable storage medium characterized in that, When the instructions in the computer readable storage medium are executed by the processor of the electronic device, the electronic device is enabled to perform the suspension control method as claimed in any one of claims 1 to 5.
8. A suspension control device characterized by comprising: The method comprises: controlling the suspension by using a wind speed equivalent coefficient by a suspension control module; wherein the wind speed equivalent coefficient is determined by at least a wind speed variation rate or a wind speed of the crosswind; the controlling the suspension by using the wind speed equivalent coefficient comprises: if the wind speed equivalent coefficient is greater than or equal to a second preset threshold, adjusting a height of the suspension by using the wind speed equivalent coefficient; the adjusting the height of the suspension by using the wind speed equivalent coefficient comprises: if the wind speed equivalent coefficient is greater than or equal to a third preset threshold, adjusting the height of the suspension based on a wind direction of the crosswind; the adjusting the height of the suspension based on the wind direction of the crosswind comprises: if the wind direction is left wind, compress the height of the left suspension to a second preset height threshold, and set the height of the right suspension to a first preset height threshold, the second preset height threshold being less than the first preset height threshold; if the wind direction is right wind, compress the height of the right suspension to the second preset height threshold, and set the height of the left suspension to the first preset height threshold.
9. An electronic device, comprising: comprising: a processor; a memory for storing instructions executable by the processor; wherein the processor is configured to execute the instructions to implement the suspension control method of any one of claims 1 to 5.
10. A vehicle characterized by comprising: comprising: the suspension control apparatus of claim 8, or the electronic device of claim 9.
Citation Information
Patent Citations
Automobile road condition safety servo system
CN203221963U