Damping attenuation compensation method and device for continuous damping adjustable shock absorber basic valve system

Abstract

The invention relates to the technical field of vehicle control, in particular to a damping attenuation compensation method and device for a basic valve system of a continuous damping adjustable shock absorber, and the method comprises the steps: collecting the current mileage of a target vehicle, so as to determine whether the target vehicle carries out the self-inspection of the continuous damping adjustable shock absorber or not; under the condition that it is determined that self-inspection of the continuous damping adjustable shock absorber is conducted, the convergence time of a target vehicle passing through a preset deceleration ridge at different vehicle speeds is obtained; correcting a damping curve of the continuous damping adjustable controller of the target vehicle according to the convergence time at different vehicle speeds to obtain a target current of the continuous damping adjustable valve, comparing the target current with a current actual current of the continuous damping adjustable valve of the target vehicle to obtain a current deviation value, and outputting the current deviation value. And performing damping compensation on the continuous damping adjustable valve according to the current deviation value. Therefore, the problems that the damping force of the basic valve system is continuously attenuated along with the increase of the driving mileage of the vehicle, and stable driving and comfort of the vehicle are ensured by conventional control software are solved.

Description

Technical Field

[0001] The present invention relates to the technical field of vehicle control, and particularly relates to a damping compensation method and device for a basic valve system of a continuously variable damping shock absorber. Background Art

[0002] With the continuous progress of automotive technology and the increasing diversification of consumer demands, users have put forward more stringent requirements for the comfort and adaptability of the whole vehicle. This trend has prompted automobile manufacturers to continuously explore and innovate technologies to improve the driving quality and riding experience of vehicles. Among them, electronically controlled shock absorbers, as key components for improving vehicle dynamic performance and comfort, are being gradually expanded in application, and the range of matching vehicle models is becoming increasingly wide.

[0003] Among many electronically controlled shock absorber technologies, the Continuous Damping Control (CDC) has been favored due to its excellent performance. The CDC shock absorber usually consists of two core parts: one is the basic valve system, whose design principle is similar to that of traditional hydraulic shock absorbers, and is responsible for absorbing and dispersing road surface impacts through the flow of oil to reduce vehicle body vibration; the other is the control software, which integrates complex algorithms and sensor feedback mechanisms, can real-time monitor the vehicle driving state (such as vehicle speed, steering angle, road surface condition, etc.), and dynamically adjust the damping force of the shock absorber according to preset comfort or sportiness strategies to achieve the best driving stability and riding comfort.

[0004] However, in the long-term use process of the basic valve system in the CDC shock absorber, wear problems will inevitably occur. As the vehicle driving mileage increases, components such as seals and valve plates inside the basic valve system will gradually wear, resulting in oil leakage or changes in flow resistance, and then causing attenuation of the damping force. Although the conventional control software can improve the high-frequency vibration of the vehicle body to a certain extent, as the damping force continues to decay, the controllable force of the control software gradually becomes weaker, and it will not be able to ensure the stable driving and comfort of the vehicle. Summary of the Invention

[0005] The present invention provides a damping attenuation compensation method and device for a basic valve system of a continuously variable damping shock absorber to solve problems such as the continuous attenuation of the damping force of the basic valve system and the conventional control software ensuring the stable driving and comfort of the vehicle as the vehicle driving mileage increases.

[0006] An embodiment of the first aspect of the present invention provides a damping attenuation compensation method for the basic valve system of a continuously variable damping shock absorber, including the following steps: collecting the current mileage of the target vehicle to determine whether to perform a self-check on the continuously variable damping shock absorber of the target vehicle according to the current mileage; in the case of determining to perform a self-check on the continuously variable damping shock absorber, obtaining the convergence time of the target vehicle passing through a preset speed bump at different vehicle speeds; correcting the damping curve of the continuously variable damping controller of the target vehicle according to the convergence time at different vehicle speeds to obtain the target current of the continuously variable damping valve; comparing the target current of the continuously variable damping valve with the current actual current of the continuously variable damping valve to obtain a current deviation value, and performing damping compensation on the continuously variable damping valve according to the current deviation value.

[0007] Optionally, the step of collecting the current mileage of the target vehicle to determine whether to perform a self-check on the continuously variable damping shock absorber of the target vehicle according to the current mileage includes: collecting the current mileage of the target vehicle and comparing the current mileage with a preset mileage library. When the current mileage reaches any mileage point in the preset mileage library, it is determined to perform a self-check on the continuously variable damping shock absorber of the target vehicle. Otherwise, there is no need to perform a self-check on the continuously variable damping shock absorber of the target vehicle.

[0008] Optionally, the step of correcting the damping curve of the continuously variable damping controller of the target vehicle according to the convergence time at different vehicle speeds to obtain the target current of the continuously variable damping valve includes: calculating the current convergence time tolerance ratio of the target vehicle according to the convergence time at different vehicle speeds and a preset standard convergence time library; comparing the current convergence time tolerance ratio with a preset reference value. If the current convergence time tolerance ratio is greater than the preset reference value, the damping curve of the continuously variable damping controller of the target vehicle is corrected to obtain the target current of the continuously variable damping valve. Otherwise, there is no need to correct the damping curve of the continuously variable damping controller of the target vehicle.

[0009] Optionally, it further includes: obtaining the current execution current of the continuously variable damping valve after damping compensation; predicting the current body convergence time of the target vehicle according to the current deviation value and the current execution current; updating the preset standard convergence time library according to the current body convergence time to obtain an updated standard convergence time library, and using the updated standard convergence time library in the next damping compensation process.

[0010] In the second aspect of the present invention, an embodiment provides a damping attenuation compensation device for a basic valve system of a continuously variable damping shock absorber, including: a determination module, configured to collect the current mileage of a target vehicle to determine whether to perform a self-check on the continuously variable damping shock absorber of the target vehicle according to the current mileage; an acquisition convergence time module, configured to, when it is determined to perform a self-check on the continuously variable damping shock absorber, acquire the convergence time of the target vehicle when passing a preset speed bump at different vehicle speeds; a correction module, configured to correct the damping curve of the continuously variable damping controller of the target vehicle according to the convergence time at different vehicle speeds to obtain the target current of the continuously variable damping valve; a compensation module, configured to compare the target current of the continuously variable damping valve with the current actual current of the continuously variable damping valve to obtain a current deviation value, and perform damping compensation on the continuously variable damping valve according to the current deviation value.

[0011] Optionally, the determination module includes:

[0012] Collect the current mileage of the target vehicle, compare the current mileage with a preset mileage library, and when the current mileage reaches any mileage point in the preset mileage library, it is determined to perform a self-check on the continuously variable damping shock absorber of the target vehicle; otherwise, there is no need to perform a self-check on the continuously variable damping shock absorber of the target vehicle.

[0013] Optionally, the correction module includes: a calculation unit, configured to calculate the current convergence time tolerance ratio of the target vehicle according to the convergence time at different vehicle speeds and a preset standard convergence time library; a comparison and correction unit, configured to compare the current convergence time tolerance ratio with a preset reference value. If the current convergence time tolerance ratio is greater than the preset reference value, correct the damping curve of the continuously variable damping controller of the target vehicle to obtain the target current of the continuously variable damping valve; otherwise, there is no need to correct the damping curve of the continuously variable damping controller of the target vehicle.

[0014] Optionally, it further includes: a current acquisition module, configured to acquire the current execution current of the continuously variable damping valve after damping compensation; a predicted convergence time module, configured to predict the current vehicle body convergence time of the target vehicle according to the current deviation value and the current execution current; an updated time library module, configured to update the preset standard convergence time library according to the current vehicle body convergence time to obtain an updated standard convergence time library, and use the updated standard convergence time library for the next damping compensation process.

[0015] An embodiment of the third aspect of the present invention provides an electronic device, including: a memory, a processor, and a computer program stored on the memory and executable on the processor, where the processor executes the program to implement the damping attenuation compensation method for the basic valve system of the continuously damping adjustable shock absorber as described in the above embodiments.

[0016] An embodiment of the fourth aspect of the present invention provides a computer-readable storage medium storing a computer program, and when the program is executed by a processor, it implements the damping attenuation compensation method for the basic valve system of the continuously damping adjustable shock absorber as described above.

[0017] The damping attenuation compensation method and device for the basic valve system of the continuously damping adjustable shock absorber proposed in the embodiments of the present invention dynamically adjust the damping parameters by combining mileage data with real-time road condition feedback, compensate for the performance attenuation caused by the aging or wear of the basic valve system, and ensure that the vehicle always maintains the best controllability and stability under various working conditions (such as bumpy roads, high-speed cornering); by dynamically compensating the damping characteristics of the basic valve system in real time, it is possible to avoid the failure of the shock absorber caused by excessive wear or performance attenuation, and reduce the maintenance cost and replacement frequency.

[0018] Additional aspects and advantages of the present invention will be given in part in the following description, become apparent in part from the following description, or be understood through the practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The above and / or additional aspects and advantages of the present invention will become apparent and easy to understand from the following description of the embodiments in conjunction with the drawings, where:

[0020] Figure 1 is a flowchart of a damping attenuation compensation method for the basic valve system of a continuously damping adjustable shock absorber provided by an embodiment of the present invention;

[0021] Figure 2 is a mileage setting logic block diagram of a damping attenuation compensation method for the basic valve system of a continuously damping adjustable shock absorber provided by an embodiment of the present invention;

[0022] Figure 3 is a correction logic block diagram of a damping attenuation compensation method for the basic valve system of a continuously damping adjustable shock absorber provided by an embodiment of the present invention;

[0023] Figure 4 is a block diagram of a damping attenuation compensation device for the basic valve system of a continuously damping adjustable shock absorber provided by an embodiment of the present invention;

[0024] Figure 5 is a block diagram of a vehicle provided by an embodiment of the present invention. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0025] Embodiments of the present invention will be described in detail below. Examples of the embodiments are shown in the accompanying drawings, where the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are intended to explain the present invention, and should not be construed as limiting the present invention.

[0026] The damping compensation method and device for the basic valve system of a continuously variable damping shock absorber according to an embodiment of the present invention will be described below with reference to the accompanying drawings.

[0027] Figure 1 It is a schematic flowchart of a damping compensation method for the basic valve system of a continuously variable damping shock absorber provided by an embodiment of the present invention.

[0028] As Figure 1 shown, the damping compensation method for the basic valve system of the continuously variable damping shock absorber includes the following steps:

[0029] In step S101, the current mileage of the target vehicle is collected to determine whether to perform a self-check on the continuously variable damping shock absorber of the target vehicle according to the current mileage.

[0030] In some embodiments, collecting the current mileage of the target vehicle to determine whether to perform a self-check on the continuously variable damping shock absorber of the target vehicle according to the current mileage includes:

[0031] Collect the current mileage of the target vehicle, and compare the current mileage with a preset mileage library. When the current mileage reaches any mileage point in the preset mileage library, it is determined to perform a self-check on the continuously variable damping shock absorber of the target vehicle. Otherwise, there is no need to perform a self-check on the continuously variable damping shock absorber of the target vehicle.

[0032] As Figure 2 shown, in the actual execution process, the current mileage of the vehicle is obtained through the vehicle CAN network, and the current mileage is compared with different mileage points (such as 10k, 20k, 30k, 40k) in the preset mileage library. If the current mileage reaches any mileage point, it means that the current wear change of the basic valve system of the vehicle causes obvious damping attenuation, affecting the stable driving of the vehicle and the overall vehicle comfort. It is necessary to perform a self-check on the continuously variable damping shock absorber of the target vehicle, that is, it is necessary to start the damping correction process in the following steps to ensure the stability of the driving performance of the vehicle. Otherwise, it means that the current wear change of the basic valve system of the vehicle will not cause obvious damping attenuation and has no obvious impact on the stable driving of the vehicle and the overall vehicle comfort, and there is no need to perform a self-check on the continuously variable damping shock absorber of the target vehicle.

[0033] In step S102, when it is determined to perform a self-check on the continuously variable damping shock absorber, obtain the convergence time of the target vehicle passing through a preset speed bump at different vehicle speeds.

[0034] As Figure 2 shown, during the actual execution process, vehicle manufacturers need to pass the same speed bump with each vehicle at different vehicle speeds (e.g., 5 kph, 10 kph, 20 kph, 30 kph, 40 kph, 50 kph, 60 kph, 70 kph) in advance, collect the convergence time after the vehicle body passes over the bump, store the convergence time after the vehicle body passes over the bump in the in-vehicle memory, and extract the convergence time after the vehicle body passes over the bump from the in-vehicle memory through the vehicle CAN network when it is determined to perform a self-check on the continuously variable damping shock absorber.

[0035] In step S103, the damping curve of the continuously variable damping controller of the target vehicle is corrected according to the convergence time at different vehicle speeds to obtain the target current of the continuously variable damping valve.

[0036] In some embodiments, correcting the damping curve of the continuously variable damping controller of the target vehicle according to the convergence time at different vehicle speeds to obtain the target current of the continuously variable damping valve includes:

[0037] Calculating the current convergence time tolerance ratio of the target vehicle according to the convergence time at different vehicle speeds and the preset standard convergence time library;

[0038] Comparing the current convergence time tolerance ratio with a preset reference value. If the current convergence time tolerance ratio is greater than the preset reference value, the damping curve of the continuously variable damping controller of the target vehicle is corrected to obtain the target current of the continuously variable damping valve. Otherwise, there is no need to correct the damping curve of the continuously variable damping controller of the target vehicle.

[0039] As Figure 2 and 3 shown, during the actual execution process, the convergence time at different vehicle speeds is compared with the convergence time threshold at different vehicle speeds in the preset standard convergence time library to obtain the current convergence time tolerance ratio, that is, the ratio of the convergence time exceeding the convergence time threshold. When the current convergence time tolerance ratio exceeds 25% or more, it indicates that the vehicle body shaking intensifies, and the damping curve of the continuously variable damping needs to be corrected by the preset correction coefficient K, and then the target current of the continuously variable damping valve can be obtained. When the current convergence time tolerance ratio does not exceed 25%, there is no need to correct.

[0040] In step S104, the target current of the continuously variable damping valve is compared with the current actual current of the continuously variable damping valve to obtain a current deviation value, and the continuously variable damping valve is damped and compensated according to the current deviation value.

[0041] As Figure 3As shown, during the actual execution process, after obtaining the target current of the continuously variable damping valve, the actual current of the continuously variable damping valve is obtained through the PID current closed-loop control algorithm, and the target current and the actual current of the continuously variable damping valve are compared to obtain the current offset difference. The electromagnetic coil in the continuously variable damping valve is driven by the current offset difference to generate a magnetic force to push the spool to move. The displacement of the spool changes the opening of the valve port, thereby controlling the oil flow area, and finally realizing the stepless adjustment of the damping force, that is, realizing the damping compensation for the continuously variable damping valve.

[0042] Further, after completing the damping compensation, the current execution current of the continuously variable damping valve after damping compensation is obtained. According to the current deviation value, the current execution current and the corrected current of the preset continuously variable damping controller, the current body convergence time of the target vehicle after damping compensation is predicted. The preset standard convergence time library is updated according to the current body convergence time to obtain the updated standard convergence time library, and the updated standard convergence time library is used for the next damping compensation process, thereby realizing the automatic damping compensation ability of the target vehicle.

[0043] In summary, according to the damping attenuation compensation method of the basic valve system of the continuously variable damping shock absorber proposed by the embodiments of the present invention, the damping parameters are dynamically adjusted by combining mileage data with real-time road condition feedback to compensate for the performance attenuation caused by the aging or wear of the basic valve system, ensuring that the vehicle always maintains the best handling performance and stability under various working conditions (such as bumpy roads, high-speed cornering); by dynamically compensating the damping characteristics of the basic valve system in real time, the failure of the shock absorber caused by excessive wear or performance attenuation can be avoided, reducing the maintenance cost and replacement frequency.

[0044] Next, a damping attenuation compensation device for the basic valve system of a continuously variable damping shock absorber according to an embodiment of the present invention will be described with reference to the accompanying drawings.

[0045] Figure 4 It is a block diagram of a damping attenuation compensation device for the basic valve system of a continuously variable damping shock absorber according to an embodiment of the present invention.

[0046] As Figure 4 shown, the damping attenuation compensation device 40 for the basic valve system of the continuously variable damping shock absorber includes: a determination module 401, a convergence time acquisition module 402, a correction module 403, and a compensation module 404.

[0047] Among them, the determination module 401 is used to collect the current mileage of the target vehicle to determine whether to perform a self-check on the continuously variable damping shock absorber of the target vehicle according to the current mileage. The convergence time acquisition module 402 is used to acquire the convergence time of the target vehicle passing through a preset speed bump at different vehicle speeds when it is determined to perform a self-check on the continuously variable damping shock absorber. The correction module 403 is used to correct the damping curve of the continuously variable damping controller of the target vehicle according to the convergence time at different vehicle speeds to obtain the target current of the continuously variable damping valve. The compensation module 404 is used to compare the target current of the continuously variable damping valve with the current actual current of the continuously variable damping valve of the target vehicle to obtain a current deviation value, and perform damping compensation on the continuously variable damping valve according to the current deviation value.

[0048] In some embodiments, the determination module 401 includes:

[0049] Collect the current mileage of the target vehicle, compare the current mileage with a preset mileage database, and when the current mileage reaches any mileage point in the preset mileage database, it is determined to perform a self-check on the continuously variable damping shock absorber of the target vehicle; otherwise, there is no need to perform a self-check on the continuously variable damping shock absorber of the target vehicle.

[0050] In some embodiments, the correction module 403 includes:

[0051] A calculation unit for calculating the current convergence time tolerance ratio of the target vehicle according to the convergence time at different vehicle speeds and a preset standard convergence time database;

[0052] A comparison and correction unit for comparing the current convergence time tolerance ratio with a preset reference value. If the current convergence time tolerance ratio is greater than the preset reference value, the damping curve of the continuously variable damping controller of the target vehicle is corrected to obtain the target current of the continuously variable damping valve; otherwise, there is no need to correct the damping curve of the continuously variable damping controller of the target vehicle.

[0053] In some embodiments, it further includes:

[0054] A current acquisition module for acquiring the current execution current of the continuously variable damping valve after damping compensation;

[0055] A predicted convergence time module for predicting the current body convergence time of the target vehicle according to the current deviation value and the current execution current;

[0056] An updated time database module for updating the preset standard convergence time database according to the current body convergence time to obtain an updated standard convergence time database, and using the updated standard convergence time database for the next damping compensation process.

[0057] It should be noted that the foregoing explanatory description of the damping attenuation compensation method embodiment of the basic valve system of the continuously variable damping shock absorber is also applicable to the damping attenuation compensation device of the basic valve system of the continuously variable damping shock absorber in this embodiment, and will not be repeated here.

[0058] According to the damping attenuation compensation device of the basic valve system of the continuously variable damping shock absorber proposed by the embodiment of the present invention, the damping parameters are dynamically adjusted by combining mileage data with real-time road condition feedback to compensate for the performance attenuation caused by the aging or wear of the basic valve system, ensuring that the vehicle always maintains the best handling performance and stability under various working conditions (such as bumpy roads, high-speed cornering); by dynamically compensating the damping characteristics of the basic valve system in real time, it is possible to avoid the failure of the shock absorber caused by excessive wear or performance attenuation, reducing the maintenance cost and replacement frequency.

[0059] Figure 5 It is a schematic structural diagram of a vehicle provided by an embodiment of the present invention. The vehicle may include:

[0060] A memory 501, a processor 502, and a computer program stored on the memory 501 and executable on the processor 502.

[0061] When the processor 502 executes the program, it implements the damping attenuation compensation method of the basic valve system of the continuously variable damping shock absorber provided in the foregoing embodiment.

[0062] Further, the electronic device further includes:

[0063] A communication interface 503 for communication between the memory 501 and the processor 502.

[0064] The memory 501 is used to store a computer program executable on the processor 502.

[0065] The memory 501 may include a high-speed RAM memory and may also include a non-volatile memory, such as at least one disk memory.

[0066] If the memory 501, the processor 502, and the communication interface 503 are implemented independently, the communication interface 503, the memory 501, and the processor 502 may be interconnected through a bus and communicate with each other. The bus may be an Industry Standard Architecture (ISA) bus, a Peripheral Component Interconnect (PCI) bus, or an Extended Industry Standard Architecture (EISA) bus, etc. The bus may be divided into an address bus, a data bus, a control bus, etc. For ease of representation,Figure 5 It is represented by only one thick line, but it does not mean that there is only one bus or one type of bus.

[0067] Optionally, in a specific implementation, if the memory 501, the processor 502, and the communication interface 503 are integrated on a single chip, the memory 501, the processor 502, and the communication interface 503 can complete the communication with each other through an internal interface.

[0068] The processor 502 may be a central processing unit (CPU for short), or an application specific integrated circuit (ASIC for short), or one or more integrated circuits configured to implement the embodiments of the present invention.

[0069] The embodiments of the present invention also provide a computer-readable storage medium, on which a computer program is stored, and when the program is executed by a processor, the damping attenuation compensation method of the continuous damping adjustable shock absorber base valve system as described above is implemented.

[0070] In the description of this specification, the descriptions with reference to the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples", etc. mean that the specific features, structures, materials, or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials, or characteristics described can be combined in any one or N embodiments or examples in a suitable manner. In addition, without contradiction, those skilled in the art can combine and combine the different embodiments or examples described in this specification and the features of different embodiments or examples.

[0071] In addition, the terms "first" and "second" are only used for descriptive purposes, and cannot be understood as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include at least one of the features. In the description of the present invention, the meaning of "N" is at least two, such as two, three, etc., unless otherwise specifically defined.

[0072] Any process or method description represented in a flowchart or otherwise described herein can be understood to represent a module, segment, or portion of code including one or N executable instructions for implementing a customized logical function or process, and the scope of the preferred embodiments of the present invention includes additional implementations, where functions may be performed in a substantially simultaneous manner or in a reverse order according to the functions involved, rather than in the order shown or discussed, which should be understood by those skilled in the art to which the embodiments of the present invention pertain.

[0073] Logic and / or steps represented in a flowchart or otherwise described herein, for example, can be considered a sequenced list of executable instructions for implementing a logical function, and can be embodied specifically in any computer-readable medium for use by or in connection with an instruction execution system, apparatus, or device, such as a computer-based system, a system including a processor, or other systems that can fetch and execute instructions from the instruction execution system, apparatus, or device. For the purposes of this specification, a "computer-readable medium" can be any device that can contain, store, communicate, propagate, or transport the program for use by or in connection with the instruction execution system, apparatus, or device. More specific examples (a non-exhaustive list) of the computer-readable medium include the following: an electrical connection having one or N wires (electronic device), a portable computer diskette (magnetic device), a random access memory (RAM), a read-only memory (ROM), an erasable programmable read-only memory (EPROM or flash memory), an optical fiber device, and a portable compact disc read-only memory (CDROM). Additionally, the computer-readable medium can even be paper or other suitable medium on which the program can be printed, as the program can be obtained electronically by optically scanning the paper or other medium, followed by editing, interpretation, or other suitable processing as necessary, and then stored in a computer memory.

[0074] It should be understood that various parts of the present invention can be implemented by hardware, software, firmware, or a combination thereof. In the above-described embodiments, the N steps or methods can be implemented by software or firmware stored in a memory and executed by a suitable instruction execution system. If implemented in hardware, as in another embodiment, any one or a combination of the following technologies well known in the art can be used: discrete logic circuits having logic gate circuits for implementing logical functions on data signals, application specific integrated circuits having suitable combinational logic gate circuits, programmable gate arrays (PGAs), field programmable gate arrays (FPGAs), etc.

[0075] Those of ordinary skill in the art can understand that all or part of the steps carried out in the methods of the above embodiments can be completed by instructing relevant hardware through a program, and the program can be stored in a computer-readable storage medium. When the program is executed, it includes one or a combination of the steps of the method embodiments.

[0076] In addition, in each embodiment of the present invention, each functional unit can be integrated into a processing module, can exist separately physically for each unit, or two or more units can be integrated into a module. The above integrated module can be implemented in the form of hardware or in the form of a software functional module. When the above integrated module is implemented in the form of a software functional module and sold or used as an independent product, it can also be stored in a computer-readable storage medium.

[0077] The above-mentioned storage medium can be a read-only memory, a magnetic disk, an optical disc, etc. Although the embodiments of the present invention have been shown and described above, it can be understood that the above embodiments are exemplary and should not be construed as limiting the present invention. Those of ordinary skill in the art can make changes, modifications, substitutions, and variations to the above embodiments within the scope of the present invention.

Claims

1. A damping attenuation compensation method for a basic valve system of a continuously damping adjustable shock absorber, characterized in that: The following steps are involved: Collecting the current mileage of the target vehicle to determine whether the target vehicle performs a self-check of a continuously damping adjustable shock absorber according to the current mileage; When it is determined to perform a self-check of the continuously damped adjustable shock absorber, the convergence time of the target vehicle passing through a preset speed bump at different vehicle speeds is obtained; Correcting a damping curve of a continuously damped adjustable controller of the target vehicle according to convergence times at different vehicle speeds to obtain a target current of a continuously damped adjustable valve; The target current of the continuously damping adjustable valve is compared with the current actual current of the continuously damping adjustable valve to obtain a current deviation value, and damping compensation is performed on the continuously damping adjustable valve according to the current deviation value.

2. The damping attenuation compensation method of the basic valve system of the continuously damping adjustable shock absorber according to claim 1 is characterized in that: The collecting of the current mileage of the target vehicle to determine whether the target vehicle performs a self-check of a continuously damping adjustable shock absorber according to the current mileage includes: The current mileage of the target vehicle is collected and compared with a preset mileage library. When the current mileage reaches any mileage point in the preset mileage library, it is determined that a continuous damping adjustable shock absorber self-check is performed on the target vehicle. Otherwise, there is no need to perform a continuous damping adjustable shock absorber self-check on the target vehicle.

3. The damping attenuation compensation method of the basic valve system of the continuously damping adjustable shock absorber according to claim 1 is characterized in that: The step of correcting the damping curve of the continuously damped adjustable controller of the target vehicle according to the convergence time at different vehicle speeds to obtain the target current of the continuously damped adjustable valve includes: Calculating a current convergence time tolerance ratio of the target vehicle according to the convergence time at different vehicle speeds and a preset standard convergence time library; The current convergence time tolerance ratio is compared with a preset reference value. If the current convergence time tolerance ratio is greater than the preset reference value, the damping curve of the continuous damping adjustable controller of the target vehicle is corrected to obtain the target current of the continuous damping adjustable valve. Otherwise, there is no need to correct the damping curve of the continuous damping adjustable controller of the target vehicle.

4. The damping attenuation compensation method of the basic valve system of the continuously damping adjustable shock absorber according to claim 1 is characterized in that: Also includes: Obtaining the current execution current of the continuously damping adjustable valve after damping compensation; Predicting a current vehicle body convergence time of the target vehicle according to the current deviation value and the current execution current; The preset standard convergence time library is updated according to the current vehicle body convergence time to obtain an updated standard convergence time library, and the updated standard convergence time library is used in the next damping compensation process.

5. A damping attenuation compensation device for a basic valve system of a continuously damping adjustable shock absorber, characterized in that: include: A determination module, used for collecting the current mileage of the target vehicle, so as to determine whether the target vehicle performs a self-check of the continuously damping adjustable shock absorber according to the current mileage; A convergence time acquisition module is used to acquire the convergence time of the target vehicle passing through a preset speed reduction bump at different vehicle speeds when it is determined to perform a self-check of the continuously damped adjustable shock absorber; A correction module, used for correcting the damping curve of the continuous damping adjustable controller of the target vehicle according to the convergence time at different vehicle speeds, so as to obtain a target current of the continuous damping adjustable valve; The compensation module is used to compare the target current of the continuous damping adjustable valve with the current actual current of the continuous damping adjustable valve to obtain a current deviation value, and perform damping compensation on the continuous damping adjustable valve according to the current deviation value.

6. The damping attenuation compensation device of the basic valve system of the continuously damping adjustable shock absorber according to claim 5, characterized in that: The determination module comprises: The current mileage of the target vehicle is collected and compared with a preset mileage library. When the current mileage reaches any mileage point in the preset mileage library, it is determined that a continuous damping adjustable shock absorber self-check is performed on the target vehicle. Otherwise, there is no need to perform a continuous damping adjustable shock absorber self-check on the target vehicle.

7. The damping attenuation compensation device of the basic valve system of the continuously damping adjustable shock absorber according to claim 5, characterized in that: The correction module comprises: A calculation unit, used for calculating the current convergence time tolerance ratio of the target vehicle according to the convergence time at different vehicle speeds and a preset standard convergence time library; A comparison and correction unit is used to compare the current convergence time tolerance ratio with a preset reference value. If the current convergence time tolerance ratio is greater than the preset reference value, the damping curve of the continuous damping adjustable controller of the target vehicle is corrected to obtain the target current of the continuous damping adjustable valve. Otherwise, there is no need to correct the damping curve of the continuous damping adjustable controller of the target vehicle.

8. The damping attenuation compensation device of the basic valve system of the continuously damping adjustable shock absorber according to claim 5, characterized in that: Also includes: A current acquisition module is used to acquire the current execution current of the continuous damping adjustable valve after damping compensation; A convergence time prediction module, used for predicting a current vehicle body convergence time of the target vehicle according to the current deviation value and the current execution current; The updating time library module is used to update the preset standard convergence time library according to the current vehicle body convergence time to obtain an updated standard convergence time library, and use the updated standard convergence time library for the next damping compensation process.

9. A vehicle, characterized in that: include: A memory, a processor, and a computer program stored in the memory and executable on the processor, wherein the processor executes the program to implement the damping attenuation compensation method for the basic valve system of a continuously damping adjustable shock absorber as described in any one of claims 1 to 4.

10. A computer-readable storage medium having a computer program stored thereon, characterized in that: The program is executed by a processor to implement the damping attenuation compensation method of the basic valve system of the continuously damping adjustable shock absorber as described in any one of claims 1 to 4.

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