A vehicle ride comfort damping tuning method and tuning system

Abstract

The present application relates to a kind of vehicle ride comfort damping tuning method and tuning system, it includes the following steps: based on input voltage control damper's damping variation;Judge whether the acceleration of damper satisfies preset condition, if yes, the damping parameter of damper is output, otherwise the size of input voltage is adjusted to continue the above-mentioned step.This application embodiment provides a kind of vehicle ride comfort damping tuning method and tuning system, since directly adjusting the input voltage of damper can realize the change of damper damping, and then according to the acceleration value of damper, whether the damping of damper is in the optimal state can be judged, without replacing damper in the whole tuning process, the adjustment duration can be substantially reduced, in addition, since the adjustment direction does not need professional judgment, can get rid of the dependence on personal experience, the difference of debugging result is smaller using the same system.Due to be separately additional system, can be used repeatedly at one time, only need to detect the accuracy of adjustment periodically.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of vehicle debugging, in particular to a vehicle ride comfort damping tuning method and a tuning system. BACKGROUND

[0002] Currently, the ride comfort tuning of a commercial vehicle mainly optimizes the damping parameters of the chassis and cab shock absorbers to adapt to the damping needs of different road conditions. Generally, the related tuning work needs to rely on the rich experience of drivers and evaluators, and since the subjective feeling needs to be directly converted into design parameters, that is, different vibration conditions on the road are directly corresponding to the damping force of different speed points of the shock absorbers in different parts, and in addition, the necessary interval of other work such as sample modification and part replacement is also needed. When going to the vehicle again for subjective evaluation and comparison of differences, the variability is often indefinite, which requires a relatively long period and a lot of manpower and material resources. If the vibration conditions of different roads need to be considered, the tuning time will increase exponentially, and the resulting subjective evaluation standards will be inconsistent due to the prolonged period. This causes the current subjective tuning of the ride comfort of the commercial vehicle to be difficult, long, high-cost, and non-expected.

[0003] In related technologies, the ride comfort tuning of a vehicle generally hires a well-known international company such as ZF to organize a team of experts to entrust a complete set of shock absorber workshop to the scene, and to conduct a one-month special tuning, and finally to select a set of shock absorber subjective optimal damping parameters according to the tuning results.

[0004] However, the current ride comfort damping tuning is too dependent on the professionalism and proficiency of the technicians, and the differences in the tuning results of different tuning teams are obvious. In addition, the overall tuning period is long, generally about one month, and the overall cost is too high. Different tuning work has no relevance and needs to be repeated.

[0005] Therefore, it is necessary to propose a new vehicle ride comfort damping tuning method and tuning system to overcome the above problems. SUMMARY

[0006] The embodiments of the present application provide a vehicle ride comfort damping tuning method and a tuning system to solve the problems that the ride comfort damping tuning in related technologies is too dependent on the professionalism and proficiency of the technicians, and the differences in the tuning results of different tuning teams are obvious, and the tuning period is long and the cost is high.

[0007] In a first aspect, a vehicle ride comfort damping adjustment method is provided, which comprises the following steps: controlling damping variation of a shock absorber based on an input voltage; determining whether acceleration of the shock absorber meets a preset condition, and if so, outputting a damping parameter of the shock absorber, otherwise adjusting the size of the input voltage and continuing the above steps. The output damping parameter of the shock absorber is the optimal damping parameter selected after adjustment, and the damping parameter can be a damping force value and a speed point of the shock absorber, so as to form an F-V curve of the shock absorber.

[0008] In some embodiments, the controlling of the damping variation of the shock absorber based on the input voltage comprises: inputting a continuously changing voltage to an electromagnetic valve of the shock absorber; and controlling the opening degree of the electromagnetic valve based on the input voltage, so as to change the damping of the shock absorber. By adjusting the input voltage value of the shock absorber in real time to control the opening degree of the electromagnetic valve, the damping variation of the shock absorber can be realized.

[0009] In some embodiments, before the controlling of the damping variation of the shock absorber based on the input voltage, the method further comprises: collecting acceleration of the shock absorber by using an acceleration sensor arranged on the shock absorber; and adjusting the input voltage of the shock absorber based on the collected acceleration of the shock absorber. The input voltage value is adjusted according to the size of the acceleration, so as to realize stroke control closed loop, confirm whether the vibration signal (i.e. acceleration signal) after passing through the shock absorber meets the design requirement or is optimal, more accurately obtain the damping effect of the shock absorber in real time, and adjust the input voltage quickly and accurately.

[0010] In some embodiments, before the outputting of the damping parameter of the shock absorber, the method further comprises: collecting a first vibration signal by using an acceleration sensor arranged on an upper end of the shock absorber, and collecting a second vibration signal by using an acceleration sensor arranged on a lower end of the shock absorber; obtaining a running speed value of the shock absorber based on the first vibration signal and the second vibration signal; and obtaining a damping force of the shock absorber based on the input voltage of the shock absorber.

[0011] In some embodiments, the obtaining of the running speed value of the shock absorber based on the first vibration signal and the second vibration signal comprises: converting the first vibration signal and the second vibration signal into accelerations respectively, and obtaining vector speeds after integral operation respectively; and obtaining the running speed value of the shock absorber by subtracting the vector speed of the upper end of the shock absorber from the vector speed of the lower end of the shock absorber.

[0012] In a second aspect, a vehicle ride comfort damping adjustment system is provided, which comprises: a shock absorber, the shock absorber is provided with an electromagnetic valve, the electromagnetic valve is used to control the damping change of the shock absorber based on an input voltage; a control unit connected with the electromagnetic valve, the control unit is used to judge whether the acceleration of the shock absorber meets a preset condition, if yes, output the damping parameter of the shock absorber, otherwise, adjust the size of the input voltage and send the adjusted input voltage to the electromagnetic valve to continue adjusting the damping of the shock absorber until the acceleration of the shock absorber meets the preset condition, and then end.

[0013] In some embodiments, the control unit is provided with a pulse width modulation module and a direct current module power supply, the pulse width modulation module is used to input a constant voltage to the direct current module power supply in real time, and the direct current module power supply is used to amplify the constant voltage input by the pulse width modulation module to obtain a continuous input voltage.

[0014] In some embodiments, the shock absorber is provided with an acceleration sensor, the acceleration sensor is connected with the control unit, the acceleration sensor is used to collect the acceleration signal of the shock absorber and convert the acceleration signal of the shock absorber into an electric signal and send the electric signal to the control unit, and the control unit is further used to adjust the input voltage of the shock absorber according to the received electric signal.

[0015] In some embodiments, the upper end and the lower end of the shock absorber are both provided with acceleration sensors, the acceleration sensors are both connected with the control unit, the acceleration sensor located at the upper end is used to collect a first vibration signal, and the acceleration sensor located at the lower end is used to collect a second vibration signal, the control unit is further used to obtain the running speed value of the shock absorber based on the first vibration signal and the second vibration signal, and the control unit is further used to obtain the damping force of the shock absorber based on the input voltage of the shock absorber.

[0016] In some embodiments, the acceleration sensor located at the upper end is further used to convert the first vibration signal into a first acceleration, and the acceleration sensor located at the lower end is further used to convert the second vibration signal into a second acceleration, the control unit is further used to obtain the tangential speed by integrating the first acceleration and the second acceleration respectively, and obtain the running speed value of the shock absorber by subtracting the tangential speed at the upper end of the shock absorber from the tangential speed at the lower end of the shock absorber.

[0017] The technical scheme provided by the application has the following beneficial effects:

[0018] The embodiment of the present application provides a vehicle smoothness damping adjustment method and an adjustment system, since the input voltage of the shock absorber is directly adjusted to change the damping of the shock absorber, and then the damping of the shock absorber can be judged according to the acceleration value of the shock absorber to determine whether the damping of the shock absorber is in the optimal state, the shock absorber does not need to be replaced in the whole adjustment process, the adjustment time can be greatly shortened, and in addition, the adjustment direction does not need to be judged by professionals, the dependence on personal experience can be avoided, and the difference of debugging results is small by using the same system.

[0019] The embodiment of the present application first adopts an automatic damping adjustment system in vehicle smoothness adjustment, and avoids excessive dependence on personal experience and repeated debugging and installation time. BRIEF DESCRIPTION OF DRAWINGS

[0020] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings needed to be used in the embodiment description will be briefly introduced as follows. Obviously, the drawings in the following description are only some embodiments of the present application, and other drawings can be obtained by those skilled in the art without creative labor on the basis of these drawings.

[0021] Figure 1 A flowchart of a vehicle smoothness damping adjustment method provided by the embodiment of the present application is shown. DETAILED DESCRIPTION

[0022] In order to make the purpose, technical solutions and advantages of the embodiments of the present application more clear, the technical solutions in the embodiments of the present application will be clearly and completely described below in combination with the drawings of the embodiments of the present application. Obviously, the described embodiments are only some of the embodiments of the present application, not all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor are within the protection scope of the present application.

[0023] The embodiment of the present application provides a vehicle smoothness damping adjustment method and an adjustment system, which can solve the problems that the smoothness damping debugging in the related art is too dependent on the professionalism and proficiency of technicians, and the debugging results of different debugging teams are obviously different, the debugging period is long, and the cost is high.

[0024] Referring to Figure 1 The vehicle smoothness damping adjustment method provided by the embodiment of the present application can include the following steps:

[0025] S1: controlling the damping change of the shock absorber based on the input voltage, that is, the damping change of the shock absorber can be realized by adjusting the input voltage of the shock absorber.

[0026] S2: judging whether the acceleration of the damper meets a preset condition, if yes, outputting a damping parameter of the damper, otherwise adjusting the size of the input voltage and continuing to execute the above steps. The output damping parameter of the damper is the optimal damping parameter selected after adjustment, and the damping parameter can be a damping force value and a speed point of the damper, so as to form an F-V curve of the damper.

[0027] Further, in step S1, the method of controlling the damping change of the damper based on the input voltage can include: inputting a continuously changing voltage to an electromagnetic valve of the damper; and controlling the opening degree of the electromagnetic valve based on the input voltage, so as to change the damping of the damper. Specifically, the damper is provided with an electromagnetic valve, and the opening degree of the electromagnetic valve is controlled by adjusting the input voltage value of the damper in real time, so as to realize the change of the damping of the damper.

[0028] In some embodiments, before step S1, before the damping change of the damper is controlled based on the input voltage, the method can further include: collecting the acceleration of the damper by using an acceleration sensor arranged on the damper; and adjusting the input voltage of the damper based on the collected acceleration of the damper. Compared with the adjustment of the input voltage based on the subjective evaluation feedback of the evaluator, in this embodiment, the acceleration at the upper end of the damper can be collected by using the acceleration sensor arranged at the upper end of the damper, and the input voltage value is adjusted according to the size of the acceleration by collecting the acceleration of the damper, so as to realize stroke control closed loop, confirm whether the vibration signal (i.e. acceleration signal) after passing through the damper meets the design requirement or the optimum, more accurately and in real time acquire the damping effect of the damper, and adjust the input voltage quickly and accurately.

[0029] In some optional embodiments, when the input voltage of the damper is adjusted based on the collected acceleration of the damper, there is no absolute requirement for the adjustment rule.

[0030] Preferably, the input voltage can be adjusted by a pulse width modulation module (PWM) and a direct current module power supply (DC-DC Converter). The pulse width modulation module (PWM) can input a constant voltage in real time, and then output different voltages through the direct current module power supply (DC-DC Converter). The direct current module power supply (DC-DC Converter) can amplify the constant voltage input by the pulse width modulation module (PWM) to obtain a continuous input voltage, so as to realize stable control of a large device by a small device. The voltage output by the direct current module power supply (DC-DC Converter) is discontinuous, and there may be a leakage value in the middle, so that the desired voltage cannot be obtained. In addition, the voltage output by the direct current module power supply (DC-DC Converter) can be linear or nonlinear, and the voltage output by the direct current module power supply (DC-DC Converter) continuously changes within a set voltage range.

[0031] In some embodiments, the upper end and the lower end of the shock absorber can be arranged with acceleration sensors. Before the output of the damping parameter of the shock absorber, the method can further include: collecting a first vibration signal using the acceleration sensor arranged at the upper end of the shock absorber, and collecting a second vibration signal using the acceleration sensor arranged at the lower end of the shock absorber; obtaining a running speed value of the shock absorber based on the first vibration signal and the second vibration signal; and obtaining a damping force of the shock absorber based on the input voltage of the shock absorber. When the acceleration of the shock absorber meets the preset condition, that is, the feedback adjustment reaches a suitable input voltage, the shock absorber has an optimal damping parameter. The real-time damping force of the shock absorber can be obtained according to the adjusted input voltage through a designed parameter matching matrix, and the running speed value of the shock absorber can be calculated according to the first vibration signal and the second vibration signal. Thus, the F-V curve of the shock absorber can be obtained, that is, the damping parameter of the output shock absorber.

[0032] In some optional embodiments, obtaining the running speed value of the shock absorber based on the first vibration signal and the second vibration signal can include: converting the first vibration signal and the second vibration signal into accelerations respectively, and then performing integral operation to obtain a vector speed. That is, the acceleration sensor at the upper end of the shock absorber obtains an upper end vector speed, and the acceleration sensor at the lower end of the shock absorber obtains a lower end vector speed. The difference between the upper end vector speed and the lower end vector speed of the shock absorber can obtain the running speed value of the shock absorber.

[0033] In the vehicle ride comfort damping adjustment method of the embodiment, the input voltage of the shock absorber can be directly adjusted to change the damping of the shock absorber, and then the acceleration value of the shock absorber can be used to determine whether the damping of the shock absorber is in an optimal state. The adjustment system can theoretically realize the exhaustive method to obtain the actual optimal value. Since the shock absorber does not need to be replaced during the entire adjustment process, the adjustment time can be greatly reduced. In addition, since the adjustment direction does not need to be judged by professionals, the dependence on personal experience can be eliminated. The adjustment can be performed by any user on different road surfaces to obtain the optimal value, and the same system is used to obtain the best value with little difference.

[0034] The embodiment of the present application also provides a vehicle ride comfort damping adjustment system, which can directly adjust the ride comfort damping of the front and rear suspensions. The vehicle ride comfort damping adjustment system can include: a shock absorber, the shock absorber is provided with an electromagnetic valve, the electromagnetic valve is used to control the damping change of the shock absorber based on the input voltage; the opening degree of the electromagnetic valve can be controlled in real time by artificially or automatically adjusting the input voltage of the electromagnetic valve, so that the damping of the shock absorber can be changed; and a control unit, the control unit can be signal connected with the electromagnetic valve, wherein the control unit can send the input voltage to the electromagnetic valve to control the damping of the shock absorber, and the control unit is used to determine whether the acceleration of the shock absorber meets a preset condition, if yes, the damping parameter of the shock absorber is output, otherwise the size of the input voltage is adjusted, and the adjusted input voltage is sent to the electromagnetic valve. That is, the control unit can obtain the acceleration value of the shock absorber and judge the acceleration of the shock absorber in real time. When it is determined that the acceleration of the shock absorber meets the condition, it means that the damping parameter of the shock absorber is optimal at this time, and the optimal damping parameter can be output at this time. If the acceleration of the shock absorber does not meet the preset condition, it means that the damping parameter of the shock absorber has not reached the optimal state, and the adjustment needs to be continued. At this time, the input voltage of the shock absorber can be adjusted and sent to the electromagnetic valve to continue adjusting the damping of the shock absorber until the acceleration of the shock absorber meets the preset condition, and then the adjustment is ended.

[0035] Preferably, the control unit can be provided with a pulse width modulation module (PWM) and a direct current module power supply (DC-DC Converter), the pulse width modulation module (PWM) can input constant voltage in real time, and then output different voltages through the direct current module power supply (DC-DC Converter), the direct current module power supply (DC-DC Converter) can amplify the constant voltage input by the pulse width modulation module (PWM) to obtain continuous input voltage, so as to realize stable control of large by small; the voltage output by the direct current module power supply (DC-DC Converter) is not continuous, there may be a leakage value in the middle, and the desired voltage may not be obtained; and the voltage output by the direct current module power supply (DC-DC Converter) can be linear or nonlinear, and the voltage output by the direct current module power supply (DC-DC Converter) continuously changes within a set voltage range.

[0036] In some optional embodiments, the shock absorber can be provided with an acceleration sensor connected with the control unit, wherein the connection can be wired or wireless, the acceleration sensor can be used to collect the acceleration signal of the shock absorber, convert the acceleration signal of the shock absorber into an electric signal and send it to the control unit; the control unit is also used to adjust the input voltage of the shock absorber according to the received electric signal. That is, the control unit can know how much acceleration is collected by the acceleration sensor according to the electric signal, and judge how to adjust the input voltage value according to the size of the acceleration, such as increasing or decreasing the voltage value, and then the control unit can also determine the adjustment amount of the input voltage according to the size of the acceleration.

[0037] In some embodiments, the upper end and the lower end of the shock absorber can be arranged with an acceleration sensor, and the acceleration sensors can be in signal connection with the control unit, so that the acceleration sensors and the control unit can communicate with each other, wherein the acceleration sensor at the upper end can be used to collect a first vibration signal, and the acceleration sensor at the lower end can be used to collect a second vibration signal; the control unit is further configured to obtain a running speed value of the shock absorber based on the first vibration signal and the second vibration signal; and the control unit is further configured to obtain a damping force of the shock absorber based on an input voltage of the shock absorber. When the acceleration of the shock absorber meets a preset condition, that is, the feedback adjustment reaches a suitable input voltage, the shock absorber has optimal damping parameters at this time, and the real-time damping force of the shock absorber can be obtained according to the adjusted input voltage and a designed parameter matching matrix, and the running speed value of the shock absorber can be calculated according to the first vibration signal and the second vibration signal, so that the F-V curve of the shock absorber can be obtained, that is, the damping parameters of the shock absorber can be output.

[0038] Further, the acceleration sensor at the upper end is further configured to convert the first vibration signal into a first acceleration, and the acceleration sensor at the lower end is further configured to convert the second vibration signal into a second acceleration; the control unit is further configured to obtain a vertical speed by integrating the first acceleration and the second acceleration respectively, and obtain a running speed value of the shock absorber by subtracting the vertical speed at the upper end of the shock absorber from the vertical speed at the lower end of the shock absorber; that is, the acceleration sensor at the upper end of the shock absorber can obtain a vertical speed at the upper end, and the acceleration sensor at the lower end of the shock absorber can obtain a vertical speed at the lower end; and the running speed value of the shock absorber can be obtained by subtracting the vertical speed at the upper end of the shock absorber from the vertical speed at the lower end of the shock absorber.

[0039] The current way of hiring a famous company to debug the smoothness of the shock absorber is too dependent on the professionalism and proficiency of the technician, and the difference in the debugging results of different debugging teams is obvious. In addition, the overall debugging period is very long, basically about a month, and the overall cost is too high, and different debugging work has no relevance and needs to be repeated. The vehicle smoothness damping adjustment method and adjustment system provided by the embodiment of the application can well solve the above problems. The embodiment of the application can directly adjust the input voltage of the shock absorber to change the damping of the shock absorber, and then determine whether the damping of the shock absorber is in the optimal state according to the acceleration value of the shock absorber. The adjustment system can theoretically realize the exhaustive method to find the actual optimal value. Since the shock absorber does not need to be replaced during the entire adjustment process, the adjustment time can be greatly reduced. In addition, since the adjustment direction does not need to be judged professionally, it can be free from dependence on personal experience, and the best value can be obtained by any user on different road surfaces, and the difference between the debugging results of the same system is small.

[0040] In addition, since it is a separately added system, it can be used repeatedly at one time, and only the accuracy of the adjustment needs to be detected periodically. The application first uses an automatic damping adjustment system in vehicle smoothness adjustment to avoid excessive dependence on personal experience and repeated debugging and installation time.

[0041] In the description of the application, it should be noted that the positions or position relationships indicated by the terms "upper", "lower", etc. are based on the positions or position relationships shown in the drawings, and are only for the convenience of describing the application and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the application. Unless otherwise specified and limited, the terms "mounting", "connection", "connection" should be understood broadly, for example, it can be a fixed connection, or a detachable connection, or an integral connection; it can be a mechanical connection, or an electrical connection; it can be directly connected, or indirectly connected through an intermediate medium, or the communication between two elements. For those skilled in the art, the specific meaning of the above terms in the application can be understood according to the specific circumstances.

[0042] It should be noted that, in the present application, the relational terms such as "first" and "second", and the like, are used solely to distinguish one from another entity or action, without necessarily requiring or implying any actual relationship or order between such entities or actions. Moreover, the terms "comprises", "comprising", or any other variations thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but can also include other elements not expressly listed or inherent to such process, method, article, or apparatus. An element proceeded by "comprises... a" does not, without more constraints, exclude the existence of additional identical elements in the process, method, article, or apparatus that comprises the element.

[0043] The foregoing is considered as illustrative only of the principles of the application. Numerous modifications and changes will readily occur to those skilled in the art, and the generic principles defined herein can be applied to other embodiments without departing from the spirit or scope of the application. Accordingly, the scope of the application is intended to be defined only as set forth in the claims.

Claims

1. A method of vehicle ride comfort damping tuning, characterized by, It comprises the following steps: controlling the damping change of the shock absorber based on the input voltage; judging whether the acceleration of the shock absorber meets a preset condition, and outputting the damping parameter of the shock absorber if yes, otherwise adjusting the size of the input voltage and continuing to execute the above steps; controlling the damping change of the shock absorber based on the input voltage, comprising: inputting a continuously changing voltage to the electromagnetic valve of the shock absorber; controlling the opening of the electromagnetic valve based on the input voltage to change the damping of the shock absorber; before the outputting of the damping parameter of the shock absorber, further comprising: collecting a first vibration signal using an acceleration sensor arranged at the upper end of the shock absorber and collecting a second vibration signal using an acceleration sensor arranged at the lower end of the shock absorber; obtaining the running speed value of the shock absorber based on the first vibration signal and the second vibration signal; obtaining the damping force of the shock absorber based on the input voltage of the shock absorber.

2. The method of vehicle ride quality damper tuning of claim 1, wherein, before the controlling of the damping change of the shock absorber based on the input voltage, further comprising: collecting the acceleration of the shock absorber using an acceleration sensor arranged at the shock absorber; adjusting the input voltage of the shock absorber based on the collected acceleration of the shock absorber.

3. The method of vehicle ride quality damper tuning of claim 1, wherein, the obtaining of the running speed value of the shock absorber based on the first vibration signal and the second vibration signal, comprising: converting the first vibration signal and the second vibration signal into accelerations respectively, and obtaining the vector speed after integral operation respectively; obtaining the running speed value of the shock absorber by subtracting the vector speed at the upper end of the shock absorber from the vector speed at the lower end of the shock absorber.

4. A vehicle ride damping tuning system, characterized by, It comprises: a shock absorber, the shock absorber is provided with an electromagnetic valve, the electromagnetic valve is used for controlling the damping change of the shock absorber based on the input voltage; a control unit, the control unit is connected with the electromagnetic valve, the control unit is used for judging whether the acceleration of the shock absorber meets a preset condition, and outputting the damping parameter of the shock absorber if yes, otherwise adjusting the size of the input voltage and sending the adjusted input voltage to the electromagnetic valve; the upper end and the lower end of the shock absorber are both provided with an acceleration sensor, the acceleration sensor is connected with the control unit, the acceleration sensor at the upper end is used for collecting a first vibration signal, and the acceleration sensor at the lower end is used for collecting a second vibration signal; the control unit is further used for obtaining the running speed value of the shock absorber based on the first vibration signal and the second vibration signal; the control unit is further used for obtaining the damping force of the shock absorber based on the input voltage of the shock absorber.

5. The whole vehicle ride comfort damping tuning system according to claim 4, wherein: a pulse width modulation module and a direct current module power supply are arranged in the control unit, the pulse width modulation module is used for inputting a constant voltage to the direct current module power supply in real time, and the direct current module power supply is used for amplifying the constant voltage input by the pulse width modulation module to obtain a continuous input voltage.

6. The whole vehicle ride comfort damping tuning system according to claim 4, wherein: the shock absorber is provided with an acceleration sensor, the acceleration sensor is connected with the control unit, the acceleration sensor is used for collecting an acceleration signal of the shock absorber and converting the acceleration signal of the shock absorber into an electric signal and sending the electric signal to the control unit; The control unit is further configured to adjust the input voltage of the shock absorber according to the received electric signal. 7.The whole vehicle ride comfort damping tuning system of claim 4, wherein: The acceleration sensor at the upper end is further configured to convert the first vibration signal into a first acceleration, and the acceleration sensor at the lower end is further configured to convert the second vibration signal into a second acceleration. The control unit is further configured to integrate the first acceleration and the second acceleration respectively to obtain a vertical velocity, and to obtain a running speed value of the shock absorber by subtracting the vertical velocity at the upper end of the shock absorber from the vertical velocity at the lower end of the shock absorber.

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