Cab shock absorber damping adjustment control system, method and engineering machine

Abstract

The application discloses a cab shock absorber damping adjustment control system and method and engineering machinery, comprising the following steps: S1, starting; S2, the controller detects the gear mode and gear of the vehicle; S3, the controller judges whether the gear selected by the user at present matches the shock absorber working mode; if matched, the controller is closed, and normal construction is carried out; if not matched, the shock absorber working mode is adjusted according to the gear selected by the user through a vibration database, and after adjustment, the construction is continued. The application has the advantages that in the initial stage of shock absorber design, it is unnecessary to repeatedly check and adjust the damping value of the shock absorber, the working efficiency of designers is improved, and the test cost is reduced; customers can select corresponding damping values of the shock absorber according to different working modes, the driving comfort of operators can be effectively improved, and the satisfaction of users is improved; the damping values of four shock absorbers of the cab can be set as different values according to specific working condition requirements, and various requirements of users are met.

Description

Technical Field

[0001] This invention relates to a damping adjustment control system and method for a cab shock absorber, as well as engineering machinery, belonging to the field of excavator technology. Background Technology

[0002] Currently, the damping of the shock absorbers in excavator cabs is fixed and not adjustable. The comfort level of the cab varies under different working conditions, making it impossible to accurately meet the comfort requirements of the cab under different working conditions. In addition, in the early stages of the design of the cab shock absorbers, the damping of the cab shock absorbers needs to be checked and calculated multiple times to meet the design requirements, which is time-consuming and labor-intensive.

[0003] Currently, there is a patent for a method and system for adjusting a seat suspension airbag (CN117068015A), which discloses that the method includes the following steps: obtaining the seat vibration amplitude; comparing the obtained seat vibration amplitude with several vibration amplitude intervals to obtain the air intake volume corresponding to the vibration amplitude interval in which the obtained vibration amplitude is located, which is then inflated into the seat airbag via an intake valve; and adjusting the intake valve to inflate the seat airbag according to the air intake volume. However, this method cannot individually adjust the damping of multiple shock absorbers in the driver's cab. Summary of the Invention

[0004] To address the problems existing in the prior art, the present invention provides a cab damper damping adjustment control system, method, and engineering machinery to improve the seat comfort of the cab.

[0005] To achieve the above objectives, the present invention employs a method for adjusting and controlling the damping of a cab shock absorber, comprising the following steps:

[0006] S1. Power on;

[0007] S2. The controller detects the vehicle's gear mode and gear position;

[0008] S3. The controller determines whether the gear mode currently selected by the user matches the working mode of the shock absorber.

[0009] If a match is found, the controller is turned off, and normal construction proceeds.

[0010] If they do not match, the vibration damper's working mode will be adjusted according to the user's selected gear mode and gear through the vibration database. Once the adjustment is in place, construction will continue.

[0011] As an improvement, in step S3, the excavator is calibrated for different working conditions, and vibration intensity tests are performed on the seven gears in each gear mode. The minimum vibration intensity is selected as the database collection value for this gear to form a vibration database.

[0012] As an improvement, the gear modes include N, P, T, and B.

[0013] In addition, the present invention also provides a cab damper damping adjustment control system for implementing the aforementioned cab damper damping adjustment control method, comprising:

[0014] Shock absorbers, a plurality of said shock absorbers are installed in the cab, located below the cab seat;

[0015] The controller is connected to the shock absorber and is used to output different vibration intensity signals to the shock absorber according to different shock absorber working modes, thereby adjusting the seat comfort in the cab.

[0016] As an improvement, the vibration damper is an electromagnetic vibration damper.

[0017] As an improvement, the shock absorber's operating modes include walking mode, digging mode, and breaking mode.

[0018] As an improvement, four shock absorbers are installed under the driver's seat, each of which is connected to and individually controlled by a controller.

[0019] Finally, the present invention also provides an engineering machine, wherein the aforementioned cab shock absorber damping adjustment and control system is installed on the engineering machine.

[0020] As an improvement, the construction machinery is an excavator.

[0021] Compared with the prior art, the present invention has the following beneficial effects:

[0022] (1) The application of this invention eliminates the need for repeated verification and adjustment of the damping value of the damper in the early stages of damper design, thereby improving the work efficiency of designers and reducing test costs.

[0023] (2) The application of this invention makes it convenient for customers to select the corresponding damper damping value according to different working modes, which can effectively improve the operator's driving comfort and improve user satisfaction.

[0024] (3) The application of the present invention allows the damping values ​​of the four shock absorbers in the cab to be set to different values ​​according to specific working conditions, so as to meet the various needs of users. Attached Figure Description

[0025] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0026] Figure 1 This is a schematic diagram of the structure of the present invention;

[0027] Figure 2 This is a control principle diagram of the present invention;

[0028] In the diagram: 1. Driver's cab; 2. Electromagnetic vibration damper; 3. Controller. Detailed Implementation

[0029] To make the objectives, technical solutions, and advantages of this invention clearer, the technical solutions of this application will be described in detail below with reference to the accompanying drawings and specific embodiments. It should be understood that the embodiments of this application and the specific features in the embodiments are detailed descriptions of the technical solutions of this application, rather than limitations on the technical solutions of this application. In the absence of conflict, the embodiments of this application and the technical features in the embodiments can be combined with each other.

[0030] Example 1

[0031] like Figure 1 As shown, a cab damper damping adjustment control system includes:

[0032] Shock absorbers, a plurality of said shock absorbers are installed in the cab 1, located below the cab seat;

[0033] The controller 3 is connected to the shock absorber and is used to output different vibration intensity signals to the shock absorber according to different shock absorber working modes, thereby adjusting the seat comfort of the cab 1.

[0034] As an improvement to the embodiment, such as Figure 1 As shown, the shock absorber is an electromagnetic shock absorber 2, which is used to adjust the damping value of the shock absorber through the controller 3 to adapt to the changing working conditions of the excavator and improve vehicle handling and working comfort.

[0035] As an improvement to the embodiment, the vibration damper's operating modes include a walking mode, a digging mode, and a breaking mode. When the excavator is walking, the overall vibration amplitude is small; under digging conditions, the overall vibration of the excavator is relatively large; under breaking conditions, the excavator operates under harsh conditions. The comfort level of the excavator cab varies depending on the working conditions. For example, in breaking conditions, the large vibrations provide the operator with a poor driving experience, affecting the customer's driving comfort.

[0036] As an improvement to the embodiment, such as Figure 1As shown, four shock absorbers are installed under the driver's seat. Each shock absorber is connected to and controlled independently by the controller 3. The controller 3 can set the damping values ​​of the four shock absorbers in the driver's cab to different values ​​according to specific working conditions, so as to meet various user needs and better adjust the comfort of the driver's seat.

[0037] Example 2

[0038] like Figure 2 As shown, a method for adjusting and controlling the damping of a cab shock absorber includes the following steps:

[0039] S1. Power on;

[0040] S2. The user selects the appropriate gear mode and gear according to the excavator's on-site working conditions, such as traveling, digging, or crushing.

[0041] S3, Controller 3 detects the vehicle's gear mode and gear;

[0042] S4, Controller 3 determines whether the vibration damper working mode is matched by checking the excavator gear mode and the correspondence between the gear and the vibration damper working mode in the vibration database.

[0043] S401. If matched, controller 3 is turned off, and normal construction can proceed.

[0044] S402. If there is a mismatch, the vibration damper's operating mode is adjusted according to the user-selected gear mode and gear position through a vibration database. Specifically, by calibrating the excavator under different working conditions, vibration intensity tests are performed on the seven gear positions within each gear mode. The minimum vibration intensity value is selected as the database acquisition value for that gear position, forming a vibration database. The correspondence between the excavator gear mode and gear position and the vibration damper's operating mode in the vibration database is as follows:

[0045] A1 is the damping value of the shock absorber in walking mode; A2 is the damping value of the shock absorber in digging mode; A3 is the damping value of the shock absorber in breaking mode.

[0046] In N, P, T, and B gear modes, gear 1, 2, and 3 correspond to the damper damping value A1;

[0047] In N, P, T, and B gear modes, gears 4 and 5 correspond to damper damping values ​​A2;

[0048] In N, P, T, and B gear modes, gears 6 and 7 correspond to damper damping values ​​A3;

[0049] When the excavator is traveling, the overall vibration amplitude of the excavator is small. The controller 3 identifies the gear mode and gear selected by the user. Based on the correspondence between the excavator gear mode and gear and the vibration damper working mode in the vibration database, the controller 3 adjusts the damping value of the electromagnetic vibration damper 2 to A1 to realize the adjustment of the vibration damper working mode (travel mode).

[0050] When the excavator is in digging condition, the excavator vibrates a lot. The controller 3 identifies the gear mode and gear selected by the user. Based on the correspondence between the excavator gear mode and gear and the vibration damper working mode in the vibration database, the controller 3 adjusts the damping value of the electromagnetic vibration damper 2 to A2 to adjust the vibration damper working mode (digging mode).

[0051] When the excavator is in crushing condition, the excavator is in a harsh working condition. The controller 3 identifies the gear mode and gear selected by the user. Based on the correspondence between the excavator gear mode and gear and the shock absorber working mode in the vibration database, the controller 3 adjusts the damping value of the electromagnetic shock absorber 2 to A3 to adjust the shock absorber working mode (crushing mode).

[0052] Example 3

[0053] Finally, the present invention also provides an engineering machine, which is an excavator equipped with the cab damper damping adjustment control system.

[0054] The application of this invention eliminates the need for repeated verification and adjustment of damper damping values ​​in the early stages of damper design, improving the efficiency of designers and reducing testing costs. This invention also allows customers to select appropriate damper damping values ​​according to different operating modes, effectively improving operator comfort and user satisfaction. Furthermore, this invention allows the damping values ​​of the four dampers in the cab to be set to different values ​​according to specific operating conditions, meeting various user needs.

[0055] Furthermore, those skilled in the art will understand that although some embodiments described herein include certain features found in other embodiments but not others, combinations of features from different embodiments are also within the scope of protection of this invention and form different embodiments. For example, in the embodiments described above, those skilled in the art can use them in combination based on known technical solutions and the technical problems to be solved by this application.

Claims

1. A method for adjusting and controlling the damping of a driver's cab shock absorber, characterized in that, Includes the following steps: S1. Power on; S2, The controller (3) detects the vehicle's gear mode and gear; the gear mode includes N, P, T, and B; S3, Controller (3) determines whether the gear mode currently selected by the user and the gear mode match the working mode of the shock absorber. The working modes of the shock absorber include walking mode, digging mode and breaking mode. If a match is found, controller (3) is turned off, and normal construction proceeds. If there is a mismatch, the vibration damper's working mode is adjusted according to the user's selected gear mode and gear position through the vibration database. After adjustment, construction continues. By calibrating the excavator under different working conditions, vibration intensity tests are conducted on the seven gear positions in each gear mode. The minimum vibration intensity value is selected as the database acquisition value for that gear position, forming a vibration database. The correspondence between the excavator gear mode and gear position and the vibration damper working mode in the vibration database is as follows: A1 is the damper damping value in the walking mode; A2 is the damper damping value in the digging mode; A3 is the damper damping value in the breaking mode; in the N, P, T, B gear modes, gears 1, 2, and 3 correspond to the damper damping value A1; in the N, P, T, B gear modes, gears 4 and 5 correspond to the damper damping value A2; in the N, P, T, B gear modes, gears 6 and 7 correspond to the damper damping value A3. Four shock absorbers are installed under the driver's seat, each of which is connected to and individually controlled by the controller (3).

2. A damping adjustment control system for a driver's cab shock absorber, characterized in that, The method for implementing the cab damper damping adjustment control method of claim 1 includes: Shock absorbers, a plurality of said shock absorbers are installed in the cab (1) and located below the cab seat; The controller (3) is connected to the shock absorber and is used to output different vibration intensity signals to the shock absorber according to different shock absorber working modes, so as to adjust the seat comfort of the cab (1).

3. The cab damper damping adjustment control system according to claim 2, characterized in that, The vibration damper is an electromagnetic vibration damper (2).

4. An engineering machinery, characterized in that, The engineering machinery is equipped with the cab damper damping adjustment control system as described in any one of claims 2-3.

5. The engineering machinery according to claim 4, characterized in that, The construction machinery in question is an excavator.

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