Method and system for controlling effectiveness of sealing system of shock absorber

Abstract

The present application discloses a method and system for controlling the effectiveness of the sealing system of a shock absorber, and the method includes the following steps: obtaining the driving condition of the vehicle; when the vehicle is in an extreme condition, obtaining the current piston speed of the shock absorber; obtaining the ideal damping force required by the vehicle, the extreme damping force of the shock absorber, and the extreme output current; obtaining the fitting curves of the piston speed and damping force of the shock absorber with different output currents; obtaining the damping force values ​​of the upper and lower damping curves and the current values ​​of the upper and lower damping curves; comparing the required ideal damping force and the extreme damping force to obtain the comparison condition; according to the obtained comparison condition, controlling the execution of different shock absorber sealing effective current output control methods. The present application solves the problem of failure of the shock absorber sealing system of the vehicle due to very few extreme conditions through a control strategy, ensures the service life of the shock absorber and the driving stability of the vehicle, and reduces the risk of abnormal noise of the shock absorber due to excessive current jump.

Description

Technical Field

[0001] The present application relates to the technical field of vehicle shock absorbers, and in particular to a method and system for controlling the effectiveness of a sealing system of a shock absorber. Background Art

[0002] When a vehicle encounters certain extreme driving conditions, the body movement enters the resonance zone with a large amplitude. Especially for new energy vehicles, it requires a larger damping force to suppress the relative movement of the body to stabilize the body and ensure driving stability and safety. However, it is difficult to accurately give the required damping force capacity at the beginning of the design. Once the shock absorber type or specification is selected, especially the effectiveness of the sealing system of the external solenoid valve shock absorber, the compression resistance of the sealing system has been determined, and its damping force capacity has been basically determined. However, through adjustment, under some actual extreme conditions, the actual damping force required by the vehicle may exceed the damping force boundary under the premise of reliable use of the shock absorber. At this time, in order to meet the force value, either increase the specification and re-adjust, or reduce the performance and reduce the damping force requirements in each mode. If the shock absorber specification is larger in the early stage, but the damping force capacity may be excessive in the actual adjustment of the actual vehicle, this will cause space waste, cost waste, and is not conducive to lightweight.

[0003] In the case where the damping force demand exceeds the hardware capacity, if no control intervention is made, the shock absorber sealing system may fail and cause micro-leakage or leakage, resulting in a significant reduction in the damping force of the shock absorber at each current, especially in the hard mode where the damping force is too small, affecting the stability of the vehicle body and reducing the vehicle's driving maneuverability and stability. In addition, if the current jump is too large, abnormal noise may occur, reducing the vehicle's driving comfort. Summary of the invention

[0004] The purpose of this application is to overcome the deficiencies of the above-mentioned background technology and to provide a method and system for controlling the effectiveness of a sealing system of a shock absorber.

[0005] In a first aspect, a method for controlling the effectiveness of a sealing system of a shock absorber is provided, comprising the following steps:

[0006] Obtain the driving condition of the vehicle;

[0007] When the vehicle is in extreme working conditions, obtain the current piston speed of the shock absorber;

[0008] Obtain the required ideal damping force, limit damping force, and limit output current;

[0009] Obtain fitting curves of piston velocity and damping force at different output currents of the shock absorber;

[0010] According to the acquired required ideal damping force, the current piston speed and the fitting curve of the piston speed and damping force of different output currents of the shock absorber, the damping force value of the upper damping curve, the damping force value of the lower damping curve, the current value of the upper damping curve and the current value of the lower damping curve are obtained;

[0011] Compare the required ideal damping force and the limit damping force to obtain the comparison working conditions;

[0012] According to the obtained comparison working conditions and the required ideal damping force, the damping force value of the upper damping curve, the damping force value of the lower damping curve, the current value of the upper damping curve and the current value of the lower damping curve, different effective current output control methods for shock absorber seals are controlled and executed.

[0013] According to the first aspect, in a first implementation of the first aspect, the step of obtaining the damping force value of the upper damping curve, the damping force value of the lower damping curve, the current value of the upper damping curve, and the current value of the lower damping curve according to the acquired required ideal damping force, the current piston speed, and the fitting curve of the piston speed and the damping force of different output currents of the shock absorber specifically includes the following steps:

[0014] The current piston speed is used as the vertical line, and the required ideal damping force is used as the horizontal line. The vertical line intersects with the fitting curve of the piston speed and damping force of the shock absorber with different output currents. The damping force values ​​of the upper and lower intersection points near the required ideal damping force horizontal line are obtained, which are used as the damping force value of the upper damping curve and the damping force value of the lower damping curve, respectively, and the current values ​​of the two curves are used as the current value of the upper damping curve and the current value of the lower damping curve, respectively.

[0015] According to the first aspect, in a second implementation method of the first aspect, in the steps of obtaining the maximum damping force of the shock absorber, the required ideal damping force, the maximum output current of the shock absorber and the minimum output current of the shock absorber, the required damping force of the vehicle's vertical working condition, the required damping force of the vehicle's roll working condition and the required damping force of the vehicle's pitch working condition are obtained to obtain the ideal damping force required by the vehicle.

[0016] According to the first aspect, in a third implementation of the first aspect, the steps of controlling the execution of different shock absorber seal effective current output control methods according to the obtained comparison working conditions and the required ideal damping force, the upper damping curve damping force value, the lower damping curve damping force value, the upper damping curve current value, the lower damping curve current value and the limit output current, further include the following steps:

[0017] When the required ideal damping force is greater than the minimum damping force and less than the maximum damping force of the shock absorber, different shock absorber sealing effective current output control methods are controlled and executed according to the obtained required ideal damping force, the damping force value of the upper damping curve, the damping force value of the lower damping curve, the damping force value of the current upper damping curve and the damping force value of the current lower damping curve.

[0018] According to the third implementation of the first aspect, in the fourth implementation of the first aspect, the steps of controlling the execution of different shock absorber sealing effective current output control methods according to the obtained comparison working conditions and the maximum damping force of the shock absorber, the required ideal damping force, the maximum output current of the shock absorber, and the minimum output current of the shock absorber specifically include the following steps:

[0019] When the required ideal damping force is greater than the maximum damping force of the shock absorber, the control outputs the maximum output current.

[0020] According to the fourth implementation of the first aspect, in the fifth implementation of the first aspect, the steps of controlling the execution of different shock absorber seal effective current output control methods according to the obtained comparison working conditions and the shock absorber maximum damping force, the required ideal damping force, the shock absorber maximum output current, and the shock absorber minimum output current further include the following steps:

[0021] When the required ideal damping force is less than the minimum damping force, the control outputs the minimum output current.

[0022] According to the first aspect, in a sixth implementation of the first aspect, the step of obtaining fitting curves of piston speed and damping force of different output currents of the shock absorber specifically includes the following steps:

[0023] Obtain the data of piston velocity and damping force of the shock absorber under different output currents;

[0024] The acquired data is subjected to curve fitting to obtain fitting curves of piston speed and damping force at different output currents of the shock absorber.

[0025] In a second aspect, the present application provides a sealing system effectiveness control system for a shock absorber, comprising:

[0026] A driving condition acquisition module, used to acquire the driving condition of the vehicle;

[0027] A piston speed acquisition module, which is in communication with the driving condition acquisition module and is used to acquire the current piston speed of the shock absorber when the vehicle is in an extreme condition;

[0028] A fitting curve acquisition module is used to obtain fitting curves of piston speed and damping force of different output currents of the shock absorber;

[0029] The first parameter acquisition module is used to obtain the required ideal damping force, the limit damping force, and the limit output current;

[0030] The second parameter acquisition module acquires the damping force value of the upper damping curve, the damping force value of the lower damping curve, the current value of the upper damping curve, and the current value of the lower damping curve according to the acquired required ideal damping force, the current piston speed, and the fitting curve of the piston speed and the damping force of different output currents of the shock absorber;

[0031] A comparison working condition acquisition module, which is in communication with the first parameter acquisition module and the second parameter acquisition module, and is used to compare the required ideal damping force and the limit damping force to acquire a comparison working condition;

[0032] The current output control module is communicatively connected with the comparison working condition, the first parameter acquisition module and the shock absorber second parameter acquisition module, and is used to control the execution of different shock absorber sealing effective current output control methods according to the acquired comparison working condition and the required ideal damping force, the upper damping curve damping force value, the lower damping curve damping force value, the upper damping curve current value and the lower damping curve current value.

[0033] According to the second aspect, in a first implementation of the second aspect, the current output control module includes:

[0034] The first current output control unit is communicatively connected with the comparison working condition, the first parameter acquisition module and the shock absorber second parameter acquisition module, and is used for controlling the execution of different shock absorber sealing effective current output control methods according to the acquired required ideal damping force, the upper damping curve damping force value, the lower damping curve damping force value, the current upper damping curve damping force value and the current lower damping curve damping force value when the required ideal damping force is greater than the minimum damping force and less than the maximum damping force of the shock absorber.

[0035] According to the first implementation method of the second aspect, in the second implementation method of the second aspect, the current output control module also includes a second current output control unit, which is communicatively connected with the comparison working condition, the first parameter acquisition module and the shock absorber second parameter acquisition module, and is used to control the output maximum output current when the required ideal damping force is greater than the maximum damping force of the shock absorber.

[0036] Compared with the prior art, the advantages of this application are as follows:

[0037] The method for controlling the effectiveness of the sealing system of a shock absorber provided in the present application solves the problem of failure of the sealing system of a shock absorber of a vehicle due to extremely rare extreme operating conditions through a control strategy, thereby ensuring the service life of the shock absorber and the driving stability of the vehicle, while reducing the current jump amount and reducing the risk of electromagnetic abnormal noise caused by excessive current jump amount. BRIEF DESCRIPTION OF THE DRAWINGS

[0038] Figure 1A method flow chart of a method for controlling the effectiveness of a sealing system of a shock absorber provided in an embodiment of the present application;

[0039] Figure 2 A schematic diagram of a method for obtaining a maximum output parameter of a shock absorber in a method for controlling the effectiveness of a sealing system of a shock absorber provided in an embodiment of the present application;

[0040] Figure 3 A functional module block diagram of a sealing system effectiveness control system for a shock absorber provided in an embodiment of the present application;

[0041] Figure 4 Another functional module block diagram of the sealing system effectiveness control system of the shock absorber provided in an embodiment of the present application. DETAILED DESCRIPTION

[0042] The specific embodiments of the present application will now be described in detail, examples of which are illustrated in the accompanying drawings. Although the present application will be described in conjunction with the specific embodiments, it will be understood that it is not intended to limit the present application to the described embodiments. On the contrary, it is intended to cover the changes, modifications and equivalents included in the spirit and scope of the present application as defined by the appended claims. It should be noted that the method steps described herein can be implemented by any functional block or functional arrangement, and any functional block or functional arrangement can be implemented as a physical entity or a logical entity, or a combination of the two.

[0043] In order to enable those skilled in the art to better understand the present application, the present application is further described in detail below in conjunction with the accompanying drawings and specific implementation methods.

[0044] Note: The example to be introduced below is only a specific example, and is not intended to limit the embodiments of the present application to the following specific steps, values, conditions, data, sequences, etc. Those skilled in the art can apply the concept of the present application to construct more embodiments not mentioned in the present description by reading the present description.

[0045] In the prior art, when a vehicle encounters certain extreme driving conditions, the pressure resistance of the shock absorber's sealing system is determined, and the damping capacity is basically determined. Under some actual extreme conditions, the damping force actually required by the vehicle may exceed the damping force boundary under the premise of reliable use of the shock absorber. This is to meet the force value. For the situation where the damping force demand exceeds the hardware capacity, if no control intervention is made, the shock absorber sealing system may fail to produce micro-leaks or leaks, resulting in a reduction in the damping force of the shock absorber at each current, especially the hard mode damping force cannot be increased, affecting the stability of the vehicle body and reducing the vehicle's driving maneuverability and stability.

[0046] like Figure 1 As shown, an embodiment of the present application provides a method for controlling the effectiveness of a sealing system of a shock absorber, which is applicable to current output control of a continuously damping adjustable shock absorber, and the method comprises the following steps:

[0047] Step S1, obtaining the driving condition of the vehicle;

[0048] Step S2: when the vehicle is in an extreme working condition, obtaining the current piston speed of the shock absorber;

[0049] Step S3, obtaining the required ideal damping force, the limit damping force, and the limit output current;

[0050] Step S4, obtaining fitting curves of piston speed and damping force of the shock absorber with different output currents;

[0051] Step S5, obtaining the damping force value of the upper damping curve, the damping force value of the lower damping curve, the current value of the upper damping curve, and the current value of the lower damping curve according to the acquired required ideal damping force, the current piston speed, and the fitting curve of the piston speed and the damping force of different output currents of the shock absorber;

[0052] Step S6, comparing the required ideal damping force and the limit damping force to obtain a comparison working condition;

[0053] Step S7, controlling and executing different shock absorber sealing effective current output control methods according to the obtained comparison working conditions and the required ideal damping force, the upper damping curve damping force value, the lower damping curve damping force value, the upper damping curve current value and the lower damping curve current value.

[0054] The shock absorber sealing system effectiveness control method provided in the present application considers the shock absorber limit output parameter and the shock absorber maximum output parameter matching the current shock absorber piston speed to comprehensively obtain the shock absorber output current, effectively ensures the sealing performance of the shock absorber while maximally taking into account the vehicle's damping needs, ensures the vehicle's driving maneuverability and stability, and effectively avoids abnormal noise problems caused by excessive current jumps that affect the vehicle's driving comfort.

[0055] In one embodiment, in the step S2, when the vehicle is in an extreme operating condition, the step of obtaining the current piston speed of the shock absorber, the extreme operating condition is a vehicle rapid acceleration condition, a vehicle rapid deceleration condition, a vehicle sudden braking condition, a vehicle severe roll condition, etc., in which the body speed relative to the wheel speed exceeds a speed difference threshold and the body amplitude is large, and the shock absorber is required to output a larger damping force to suppress the relative movement of the body to stabilize the driving condition of the body.

[0056] In one embodiment, the step S2, when the vehicle is in an extreme working condition, of obtaining the current piston velocity of the shock absorber, is specifically implemented by obtaining the current piston velocity of the shock absorber of the suspension through suspension output voltage calculation (Computed suspension velocity).

[0057] In one embodiment, in the step S3 of obtaining the maximum damping force of the shock absorber, the required ideal damping force, the maximum output current of the shock absorber, and the minimum output current of the shock absorber, the required damping force of the vertical working condition of the vehicle, the required damping force of the roll working condition of the vehicle, and the required damping force of the pitch working condition of the vehicle are numerically transformed according to the following formula to calculate and obtain the required ideal damping force of the vehicle:

[0058] F sus_IdFL =F Sky_HF / 4+F Sky_Roll / 4-F Sky_Pitch / 2 Formula 1;

[0059] Among them, F sus_IdFL is the ideal damping force required by the vehicle, F Sky_HF is the required damping force of the vehicle in vertical working condition, F Sky_Roll is the required damping force for vehicle roll condition, F Sky_Pitch The damping force required for the vehicle pitch condition.

[0060] Among them, F Sky_HF 、F Sky_Roll 、F Sky_Pitch The calculation formula is shown in Formula 2-Formula 4:

[0061] F Sky_HF =C H1 ×C M1 ×v H Formula 2;

[0062] In the formula, C H1 is the calibration coefficient of vertical working condition with vehicle speed and selected mode, C M1 is the calibration coefficient of vertical working condition with road roughness, v H is the vertical velocity of the vehicle body;

[0063] F Sky_Roll =C R1 ×C RM1 ×v RV Formula 3;

[0064] In the formula, C R1 is the calibration coefficient of the roll condition with vehicle speed and selected mode, C RM1 is the calibration coefficient of the roll condition with the road roughness, v RV is the body roll speed;

[0065] F Sky_Pitch =C P1 ×C PM1 ×v PV Formula 4;

[0066] In the formula, C P1 is the calibration coefficient of pitch condition with vehicle speed and selected mode, CPM1 is the calibration coefficient of pitch condition with road roughness, v PV is the body roll speed.

[0067] In one embodiment, in the step S3 of obtaining the maximum damping force of the shock absorber, the required ideal damping force, the maximum output current of the shock absorber and the minimum output current of the shock absorber, the maximum damping force of the shock absorber is calculated according to the following formula:

[0068] F max =P max *S

[0069] Among them, P max is the internal pressure of the shock absorber at the maximum piston speed, S is the piston ring area of ​​the shock absorber recovery valve, P max Corresponding to the maximum piston speed, more specifically, the maximum piston speed v=2.5 m / s.

[0070] In one embodiment, in step S3, the required ideal damping force of the vehicle or wheel and the limit damping force and limit output current of the shock absorber are obtained, wherein the required ideal damping force is the ideal damping force required under the current unstable working condition of the vehicle body, the maximum damping force, minimum damping force, maximum output current and minimum output current are inherent properties under the premise that the capacity of the shock absorber is fixed, the maximum damping force and the maximum output current are the upper limit thresholds to ensure the effectiveness of the sealing system of the shock absorber, and when the upper limit threshold is exceeded, intervention and output adjustment are required to ensure the effectiveness of the shock absorber sealing system while taking into account the driving stability and safety of the whole vehicle.

[0071] In one embodiment, the step S4, the step of obtaining fitting curves of piston speed and damping force of the shock absorber with different output currents, specifically includes the following steps:

[0072] Step S41, collecting and acquiring the piston speed and damping force of the shock absorber under different output currents to obtain collected data;

[0073] Step S42: curve fitting is performed on the acquired data to obtain fitting curves of piston speed and damping force at different output currents of the shock absorber.

[0074] In one embodiment, the step S5, obtaining the damping force value of the upper damping curve, the damping force value of the lower damping curve, the current value of the upper damping curve, and the current value of the lower damping curve according to the acquired required ideal damping force, the current piston speed, and the fitting curve of the piston speed and the damping force of different output currents of the shock absorber, specifically includes the following steps:

[0075] A vertical line is drawn with the current piston speed in the coordinate system of the fitting curve of the piston speed and the damping force at different output currents of the shock absorber, and a horizontal line is drawn with the required ideal damping force. The vertical line intersects with the fitting curve of the piston speed and the damping force at different output currents of the shock absorber, and the damping force values ​​of the upper and lower intersection points adjacent to the horizontal line of the required ideal damping force are obtained, which are respectively used as the damping force value of the upper damping curve and the damping force value of the lower damping curve, and the current values ​​of the two curves are respectively used as the current value of the upper damping curve and the current value of the lower damping curve.

[0076] In a more specific embodiment, Figure 2 As shown in the figure, there are fitting curves of the shock absorber piston speed and compression and tension damping force under four output currents of 0.3A, 0.6A, 0.9A and 1.6A, among which the fitting curve with damping force greater than 0 is the fitting curve of tension damping force, and the fitting curve with damping force less than 0 is the fitting curve of compression damping force. When the piston speed of the current shock absorber is 0.2m / s, the vertical line intersects with all the fitting curves, and the intersection points closest to the upper and lower intersections of the horizontal line of the ideal damping force currently required are selected as the damping force value of the upper damping curve and the damping force value of the lower damping curve, and the current values ​​of the fitting curves at the two closest intersections are respectively used as the current value of the upper damping curve and the current value of the lower damping curve. In other embodiments of the present application, according to the different performance of the shock absorber, its preset different output current values ​​can also be implemented as other values.

[0077] In one embodiment, the step S7, according to the obtained comparison working conditions and the required ideal damping force, the damping force value of the upper damping curve, the damping force value of the lower damping curve, the current value of the upper damping curve, the current value of the lower damping curve and the limit output current, controls the execution of different shock absorber sealing effective current output control method steps, and further includes the following steps:

[0078] Step S71, when the required ideal damping force is greater than the minimum damping force and less than the maximum damping force of the shock absorber, according to the obtained required ideal damping force, the damping force value of the upper damping curve, the damping force value of the lower damping curve, the damping force value of the current upper damping curve and the damping force value of the current lower damping curve, control the execution of different shock absorber sealing effective current output control methods; and / or,

[0079] Step S72: when the required ideal damping force is greater than the maximum damping force of the shock absorber, controlling the output of the maximum output current; and / or,

[0080] Step S73: When the required ideal damping force is less than the minimum damping force, control the output to be the minimum output current.

[0081] The present application provides a method for controlling the effectiveness of a sealing system of a shock absorber. When the ideal damping force required by the shock absorber exceeds the maximum damping force of the shock absorber, the maximum output current of the shock absorber is controlled to be output, so as to avoid the situation where the required damping force exceeds the hardware capacity of the shock absorber, and the current output exceeds the maximum output current, thereby causing the shock absorber sealing system to fail and resulting in micro-leakage or leakage problems. When the required ideal damping force is between the maximum damping force and the minimum damping force, different current output control methods for effective shock absorber sealing are calculated and controlled through the maximum output parameters of the shock absorber and the required ideal damping force, so as to ensure the sealing effectiveness of the shock absorber sealing system without affecting the performance of the whole vehicle. When the required ideal damping force is less than the minimum damping force, the minimum output current is controlled to achieve the lowest damping output.

[0082] As described above, the output current control of each shock absorber of the vehicle can be achieved one by one, thereby achieving damping output control of the entire vehicle.

[0083] Based on the same inventive concept, Figure 3 As shown, the sealing system effectiveness control system of the shock absorber provided by the present application includes a driving condition acquisition module 100, a piston speed acquisition module 200, a first parameter acquisition module 300, a fitting curve acquisition module 400, a second parameter acquisition module 500, a comparison condition acquisition module 600 and a current output control module 700, wherein the driving condition acquisition module 100 is used to acquire the driving condition of the vehicle; the piston speed acquisition module 200 is communicated with the driving condition acquisition module 100, and is used to acquire the current piston speed of the shock absorber when the vehicle is in an extreme condition; the fitting curve acquisition module 400 is used to acquire the fitting curve of the piston speed and damping force of the shock absorber with different output currents; the first parameter acquisition module 300 is used to acquire the required ideal damping force, the limit damping force, and the limit output current; the second parameter acquisition module 500 is connected to the fitting curve acquisition module 400 and the first parameter acquisition module 3 00 communication connection, used to obtain the upper damping curve damping force value, the lower damping curve damping force value, the upper damping curve current value and the lower damping curve current value according to the acquired required ideal damping force, the current piston speed and the fitting curve of the piston speed and damping force of different output currents of the shock absorber; the comparison condition acquisition module 600 is communicated with the first parameter acquisition module 400 and the second parameter acquisition module 500, used to compare the required ideal damping force and the limit damping force to obtain the comparison condition; the current output control module 700 is communicated with the first parameter acquisition module 300, the second parameter acquisition module 500 and the comparison condition 600, used to control the execution of different shock absorber seal effective current output control methods according to the acquired comparison condition and the required ideal damping force, the upper damping curve damping force value, the lower damping curve damping force value, the upper damping curve current value and the lower damping curve current value.

[0084] In one embodiment, if Figure 4 As shown, the current output control module 700 in the sealing system effectiveness control system of the shock absorber provided in the present application includes a first current output control unit 710 and / or a first current output control unit 710 and / or a third current output control unit 730, and the first current output control unit 710 is communicated with the first parameter acquisition module 300, the second parameter acquisition module 500 and the comparison working condition 600, and is used for when the required ideal damping force is greater than the minimum damping force and less than the maximum damping force of the shock absorber, according to the obtained required ideal damping force, the damping force value of the upper damping curve, the damping force value of the lower damping curve, the damping force value of the upper damping curve of the current The damping force value and the damping force value of the damping curve under the current are used to control the execution of different effective current output control methods for shock absorber seals; the second current output control unit 720 is communicated with the first parameter acquisition module 300, the second parameter acquisition module 500 and the comparison working condition 600, and is used to control the output of the maximum output current when the required ideal damping force is greater than the maximum damping force of the shock absorber; the third current output control unit 730 is communicated with the first parameter acquisition module 300, the second parameter acquisition module 500 and the comparison working condition 600, and is used to control the output of the minimum output current when the required ideal damping force is less than the minimum damping force.

[0085] Based on the same inventive concept, an embodiment of the present application further provides a computer-readable storage medium on which a computer program is stored. When the computer program is executed by a processor, all or part of the method steps of the above method are implemented.

[0086] The present application implements all or part of the processes in the above method, and can also be completed by instructing related hardware through a computer program. The computer program can be stored in a computer-readable storage medium. When the computer program is executed by the processor, the steps of each of the above method embodiments can be implemented. Among them, the computer program includes computer program code, and the computer program code can be in source code form, object code form, executable file or some intermediate form. The computer-readable medium may include: any entity or device capable of carrying computer program code, recording medium, USB flash drive, mobile hard disk, disk, optical disk, computer memory, read-only memory (ROM, Read-Only Memory), random access memory (RAM, Random Access Memory), electric carrier signal, telecommunication signal and software distribution medium. It should be noted that the content contained in the computer-readable medium can be appropriately increased or decreased according to the requirements of legislation and patent practice in the jurisdiction. For example, in some jurisdictions, according to legislation and patent practice, the computer-readable medium does not include electric carrier signals and telecommunication signals.

[0087] Based on the same inventive concept, an embodiment of the present application also provides an electronic device, including a memory and a processor, wherein the memory stores a computer program running on the processor, and when the processor executes the computer program, all or part of the method steps in the above method are implemented.

[0088] The processor may be a central processing unit (CPU), other general-purpose processors, digital signal processors (DSP), application-specific integrated circuits (ASIC), field-programmable gate arrays (FPGA) or other programmable logic devices, discrete gate or transistor logic devices, discrete hardware components, etc. A general-purpose processor may be a microprocessor or any conventional processor, etc. The processor is the control center of a computer device, and uses various interfaces and lines to connect various parts of the entire computer device.

[0089] The memory can be used to store computer programs and / or modules. The processor realizes various functions of the computer device by running or executing the computer programs and / or modules stored in the memory, and calling the data stored in the memory. The memory can mainly include a program storage area and a data storage area, wherein the program storage area can store an operating system and at least one application required for a function (such as a sound playback function, an image playback function, etc.); the data storage area can store data created according to the use of the mobile phone (such as audio data, video data, etc.). In addition, the memory can include a high-speed random access memory, and can also include a non-volatile memory, such as a hard disk, a memory, a plug-in hard disk, a smart memory card (SmartMedia Card, SMC), a secure digital (Secure Digital, SD) card, a flash card (Flash Card), at least one disk storage device, a flash memory device, or other volatile solid-state storage devices.

[0090] Those skilled in the art will appreciate that the embodiments of the present application may be provided as methods, systems, servers or computer program products. Therefore, the present application may adopt the form of a complete hardware embodiment, a complete software embodiment, or an embodiment in combination with software and hardware. Moreover, the present application may adopt the form of a computer program product implemented on one or more computer-usable storage media (including but not limited to disk storage and optical storage, etc.) that contain computer-usable program code.

[0091] The present application is described with reference to the flowcharts and / or block diagrams of the methods, devices (systems), servers, and computer program products according to the embodiments of the present application. It should be understood that each process and / or box in the flowchart and / or block diagram, as well as the combination of the processes and / or boxes in the flowchart and / or block diagram, can be implemented by computer program instructions. These computer program instructions can be provided to a processor of a general-purpose computer, a special-purpose computer, an embedded processor, or other programmable data processing device to generate a machine, so that the instructions executed by the processor of the computer or other programmable data processing device generate instructions for implementing the processes in the flowchart and / or block diagram. Figure 1 A process or multiple processes and / or boxes Figure 1 A device that provides the functions specified in a block or multiple blocks.

[0092] These computer program instructions may also be stored in a computer-readable memory capable of directing a computer or other programmable data processing device to operate in a specific manner, so that the instructions stored in the computer-readable memory produce an article of manufacture comprising an instruction device, which implements the process Figure 1 A process or multiple processes and / or boxes Figure 1 A function specified in one or more boxes.

[0093] These computer program instructions can also be loaded onto a computer or other programmable data processing device so that a series of operating steps are executed on the computer or other programmable device to produce a computer-implemented process, thereby providing instructions for implementing the process. Figure 1 A process or multiple processes and / or boxes Figure 1 The steps for the functions specified in one or more boxes.

[0094] Obviously, those skilled in the art can make various changes and modifications to the present application without departing from the spirit and scope of the present application. Thus, if these modifications and variations of the present application fall within the scope of the claims of the present application and their equivalents, the present application is also intended to include these modifications and variations.

Claims

1. A method for controlling the effectiveness of a sealing system of a shock absorber, characterized in that: The steps include: Obtain the driving condition of the vehicle; When the vehicle is in extreme working conditions, obtain the current piston speed of the shock absorber; Obtain the required ideal damping force, the limit damping force of the shock absorber and the limit output current; Obtain fitting curves of piston velocity and damping force at different output currents of the shock absorber; According to the acquired required ideal damping force, the current piston speed and the fitting curve of the piston speed and damping force of different output currents of the shock absorber, the damping force value of the upper damping curve, the damping force value of the lower damping curve, the current value of the upper damping curve and the current value of the lower damping curve are obtained; Compare the required ideal damping force and the limit damping force to obtain the comparison working conditions; According to the obtained comparison working conditions and the required ideal damping force, the damping force value of the upper damping curve, the damping force value of the lower damping curve, the current value of the upper damping curve, the current value of the lower damping curve and the limit output current, different effective current output control methods for shock absorber seals are controlled and executed.

2. The sealing system effectiveness control method of the shock absorber according to claim 1, characterized in that: The step of obtaining the damping force value of the upper damping curve, the damping force value of the lower damping curve, the current value of the upper damping curve and the current value of the lower damping curve according to the acquired required ideal damping force, the current piston speed and the fitting curve of the piston speed and damping force of different output currents of the shock absorber specifically includes the following steps: The current piston speed is used as the vertical line, and the required ideal damping force is used as the horizontal line. The vertical line intersects with the fitting curve of the piston speed and the damping force of the shock absorber with different output currents. The damping force values ​​of the upper and lower intersection points adjacent to the required ideal damping force horizontal line are obtained, and are used as the damping force value of the upper damping curve and the damping force value of the lower damping curve, respectively. The current values ​​of the fitting curves where the damping force value of the upper damping curve and the damping force value of the lower damping curve are located are used as the current value of the upper damping curve and the current value of the lower damping curve, respectively.

3. The sealing system effectiveness control method of a shock absorber according to claim 1, characterized in that: In the steps of obtaining the maximum damping force of the shock absorber, the required ideal damping force, the maximum output current of the shock absorber and the minimum output current of the shock absorber, the required ideal damping force of the vehicle is obtained by obtaining the required damping force of the vehicle vertical working condition, the required damping force of the vehicle roll working condition and the required damping force of the vehicle pitch working condition.

4. The sealing system effectiveness control method of a shock absorber according to claim 1, characterized in that: The method of controlling and executing different effective current output control methods for shock absorber seals according to the obtained comparison working conditions and the required ideal damping force, the damping force value of the upper damping curve, the damping force value of the lower damping curve, the current value of the upper damping curve, the current value of the lower damping curve and the limit output current also includes the following steps: When the required ideal damping force is greater than the minimum damping force and less than the maximum damping force of the shock absorber, different shock absorber sealing effective current output control methods are controlled and executed according to the obtained required ideal damping force, the damping force value of the upper damping curve, the damping force value of the lower damping curve, the damping force value of the current upper damping curve and the damping force value of the current lower damping curve.

5. The sealing system effectiveness control method of a shock absorber according to claim 1 or 4, characterized in that: The method of controlling and executing different shock absorber sealing effective current output control methods according to the obtained comparison working conditions and the maximum damping force of the shock absorber, the required ideal damping force, the maximum output current of the shock absorber and the minimum output current of the shock absorber specifically includes the following steps: When the required ideal damping force is greater than the maximum damping force of the shock absorber, the control outputs the maximum output current.

6. The sealing system effectiveness control method of a shock absorber according to claim 5, characterized in that: The method of controlling and executing different shock absorber seal effective current output control methods according to the obtained comparison working conditions and the maximum damping force of the shock absorber, the required ideal damping force, the maximum output current of the shock absorber and the minimum output current of the shock absorber also includes the following steps: When the required ideal damping force is less than the minimum damping force, the control outputs the minimum output current.

7. The sealing system effectiveness control method of a shock absorber according to claim 1, characterized in that: The step of obtaining the fitting curve of the piston speed and the damping force of the shock absorber with different output currents specifically comprises the following steps: Obtain the data of piston velocity and damping force of the shock absorber under different output currents; The acquired data is subjected to curve fitting to obtain fitting curves of piston speed and damping force at different output currents of the shock absorber.

8. A sealing system effectiveness control system for a shock absorber, characterized in that: include: A driving condition acquisition module, used to acquire the driving condition of the vehicle; A piston speed acquisition module, which is in communication with the driving condition acquisition module and is used to acquire the current piston speed of the shock absorber when the vehicle is in an extreme condition; The first parameter acquisition module is used to obtain the required ideal damping force, the limit damping force, and the limit output current; A fitting curve acquisition module is used to obtain fitting curves of piston speed and damping force of different output currents of the shock absorber; The second parameter acquisition module acquires the damping force value of the upper damping curve, the damping force value of the lower damping curve, the current value of the upper damping curve, and the current value of the lower damping curve according to the acquired required ideal damping force, the current piston speed, and the fitting curve of the piston speed and the damping force of different output currents of the shock absorber; A comparison working condition acquisition module, which is in communication with the first parameter acquisition module and the second parameter acquisition module, and is used to compare the required ideal damping force and the limit damping force to acquire a comparison working condition; The current output control module is communicatively connected with the comparison working condition, the first parameter acquisition module and the second parameter acquisition module, and is used to control the execution of different effective current output control methods for shock absorber sealing according to the obtained comparison working condition and the required ideal damping force, the damping force value of the upper damping curve, the damping force value of the lower damping curve, the current value of the upper damping curve and the current value of the lower damping curve.

9. The sealing system effectiveness control system of a shock absorber according to claim 8, characterized in that: The current output control module comprises: The first current output control unit is communicatively connected with the comparison working condition, the first parameter acquisition module and the second parameter acquisition module, and is used for controlling the execution of different effective current output control methods for shock absorber sealing according to the acquired required ideal damping force, the damping force value of the upper damping curve, the damping force value of the lower damping curve, the damping force value of the current upper damping curve and the damping force value of the current lower damping curve when the required ideal damping force is greater than the minimum damping force and less than the maximum damping force of the shock absorber.

10. The sealing system effectiveness control system of a shock absorber according to claim 9, characterized in that: The current output control module also includes: The second current output control unit is communicatively connected with the comparison working condition, the first parameter acquisition module and the second parameter acquisition module, and is used for controlling the output of the maximum output current when the required ideal damping force is greater than the maximum damping force of the shock absorber.

Images