CN114312191A

CN114312191A - Buffer device, buffer control method and automobile

Info

Publication number: CN114312191A
Application number: CN202011058334.6A
Authority: CN
Inventors: 董慧军
Original assignee: BYD Co Ltd
Current assignee: BYD Co Ltd
Priority date: 2020-09-30
Filing date: 2020-09-30
Publication date: 2022-04-12
Anticipated expiration: 2040-09-30
Also published as: CN114312191B

Abstract

The invention relates to the technical field of automobile buffering, and discloses a buffering device, a buffering control method and an automobile, wherein the buffering device comprises a buffering body and a mounting bracket mounted on an automobile body; a buffer adjusting space is formed on the mounting bracket, and the buffer body is mounted in the buffer adjusting space; one end, far away from the oil storage cylinder, of a piston rod of the automobile shock absorber sequentially penetrates through the buffer body and the mounting bracket and is connected with an automobile body; the damping body is movable relative to the mounting bracket to vary a distance between the damping body and a reservoir of the vehicle shock absorber. The distance between the buffer body and the oil storage cylinder of the automobile shock absorber is adjustable, the buffer force can be adjusted according to different automobile running states, the driving comfort and the stability of an automobile are better balanced, and the buffer device is simple in structure and convenient to maintain and assemble.

Description

Buffer device, buffer control method and automobile

Technical Field

The invention relates to the technical field of automobile buffering, in particular to a buffering device, a buffering control method and an automobile.

Background

The shock absorber is an indispensable part of the automobile, is mounted on an automobile body and can attenuate vibration of the frame and the automobile body, thereby improving ride comfort (comfort) of the automobile. In the prior art, the buffer body needs to be fixedly installed on the automobile body so as to prevent the shock absorber from directly colliding with the automobile body to generate noise when the shock absorber moves upwards. Thus, inconvenience may be caused in the assembly and maintenance between the shock absorber and the cushion body.

Disclosure of Invention

The embodiment of the invention provides a buffer device, a buffer control method and an automobile, and solves the problem that in the prior art, a buffer body needs to be fixedly installed on an automobile body, so that the assembly and the maintenance between a shock absorber and the buffer body are inconvenient.

The embodiment of the invention provides a buffer device, which comprises a buffer body and a mounting bracket arranged on an automobile body; a buffer adjusting space is formed on the mounting bracket, and the buffer body is mounted in the buffer adjusting space;

one end, far away from the oil storage cylinder, of a piston rod of the automobile shock absorber sequentially penetrates through the buffer body and the mounting bracket and is connected with an automobile body;

the damping body is movable relative to the mounting bracket to vary a distance between the damping body and a reservoir of the vehicle shock absorber.

Another embodiment of the present invention further provides a buffer control method, wherein the buffer control is realized by the above buffer device; the buffer control method comprises the following steps:

determining the driving state of the automobile;

determining a device to be adjusted and a buffer adjustment parameter of the device to be adjusted according to the automobile running state; the device to be regulated refers to the buffer device which needs to be subjected to buffer regulation in all the buffer devices in the automobile;

and adjusting the buffer body of the device to be adjusted according to the buffer adjustment parameter so as to enable the buffer distance of the buffer body of the device to be adjusted after the buffer body moves under the driving of the buffer upper cover to meet the buffer adjustment parameter, wherein the buffer distance is the distance between the buffer body and an oil storage cylinder of the automobile shock absorber.

The invention further provides an automobile comprising the buffer device.

The invention provides a buffer device, a buffer control method and an automobile. The distance between the buffer body and the oil storage cylinder of the automobile shock absorber is adjustable, and the maintenance and the assembly are convenient. That is, the damping force of the automobile shock absorber is not constant, and can be correspondingly adjusted according to different automobile running states, so that the driving comfort and the stability of an automobile can be better balanced; the invention has simple structure and stable operation, can bear larger impact and prolongs the service life.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the description of the embodiments of the present invention will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained based on these drawings without inventive labor.

Fig. 1 is a schematic structural diagram of a buffering device according to an embodiment of the present invention.

FIG. 2 is a cross-sectional view of a cushioning device in accordance with an embodiment of the present invention.

FIG. 3 is a schematic view of a shock absorber assembly connecting a vehicle body and a shock absorber in accordance with an embodiment of the present invention.

The reference numerals in the specification are as follows:

1. buffering the upper cover; 11. a second through hole; 12. a convex portion; 13. accommodating grooves; 2. a buffer body; 21. a first through hole; 3. an adjustment member; 4. mounting a bracket; 41. a third through hole; 5. buffering and adjusting the space; 6. an automotive shock absorber; 61. a piston rod; 62. an oil storage cylinder; 7. an automotive body; 8. an upper support; 31. a second thread; 9. a drive assembly; 91. a drive motor; 92. meshing teeth; 93. a gear.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, not all, embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

The invention provides a buffer device, as shown in fig. 1 to 3, comprising a buffer upper cover 1, a buffer body 2, an adjusting piece 3 and a mounting bracket 4 mounted on an automobile body 7 (the mounting bracket 4 is fixedly connected with the automobile body 7 through an upper support 8); a buffer adjusting space 5 is formed on the mounting bracket 4, and the buffer upper cover 1 is mounted in the buffer adjusting space 5 through the adjusting piece 3; the buffer body 2 includes, but is not limited to, polyurethane or other flexible materials. Understandably, the buffer body 2 is mainly used for providing extra rigidity when the automobile wheels jump upwards, buffering huge vertical force transmitted on a road surface, avoiding rigid collision between the shock absorber and the automobile body 7, prolonging the durable service life of the installation point of the automobile body 7 and improving the riding comfort.

In an embodiment, the mounting bracket 4 is stamped from a steel plate, the mounting bracket 4 after stamping is recessed to form a buffer adjusting space 5, and the buffer upper cover 1 is mounted in the buffer adjusting space 5 through the adjusting piece 3, alternatively, the adjusting piece 3 may include a first thread (internal thread) provided on an inner side wall of the buffer adjusting space 5 and a second thread 31 (i.e., external thread provided at a position where the buffer upper cover 1 is mounted in the buffer adjusting space 5); thus, the damping upper cover 1 is installed in the damping adjustment space 5 by engagement of the first screw and the second screw 31. Understandably, the adjusting member 3 may also be configured to have other structures, for example, the adjusting member 3 may also be a sliding groove and a sliding block which are disposed on the inner side wall of the buffer adjusting space 5 and the buffer upper cover 1, and a positioning member for positioning the buffer upper cover 1 after adjusting the position of the buffer upper cover 1 in place, and the concrete arrangement of the sliding groove, the sliding block and the positioning member may be set according to the structural requirements.

The buffer body 2 is connected with the buffer upper cover 2 (optionally, the buffer body 2 is mounted on an end surface of the buffer upper cover 1 facing away from the mounting bracket 4); a first through hole 21 is formed in the buffer body 2, a second through hole 11 is formed in the buffer upper cover 1, and a third through hole 41 is formed in the mounting bracket 4; one end of a piston rod 61 of the automobile shock absorber 6, which is far away from the oil storage cylinder 62, sequentially penetrates through the first through hole 21, the second through hole 11 and the third through hole 41 and is connected with the automobile body 7. As shown in fig. 3, a first through hole 21 is formed in the middle of the buffer body 2; the buffer upper cover 1 is provided with a second through hole 11 corresponding to the position of the first through hole 21, and the mounting bracket 4 is provided with a third through hole 41, so that the piston rod 61 of the automobile shock absorber 6 can conveniently penetrate through the buffer body 2, and air can be conveniently discharged when the buffer body 2 is compressed. Further, the buffering upper cover 1 is formed by stamping a steel plate, the buffering upper cover 1 is recessed to form an accommodating groove 13, and the buffering body 2 is fixed in the accommodating groove 13 of the buffering upper cover 1, so that the buffering body is not easy to fall off from the buffering upper cover 1.

The buffer body can move relative to the mounting bracket through the buffer upper cover and the adjusting piece so as to change the distance between the buffer body and an oil storage cylinder of the automobile shock absorber. That is, in an aspect of this embodiment of the present invention, when the vehicle is used, a vehicle driving state may be determined (optionally, the vehicle driving state may be determined by vehicle driving information such as vehicle driving speed, a braking signal, an acceleration signal, and a steering signal parameter, and the vehicle driving state includes a braking state, an acceleration state, a steering state, and a bumping state, and it is understood that the vehicle driving state may also be determined manually by a driver, and the current vehicle driving state is selected by pressing a preset physical or virtual key, and the like), and after the buffer adjustment parameter is determined in the vehicle driving state, the position of the buffer upper cover 1 in the buffer adjustment space 5 is adjusted by the adjusting part 3 (adjusted by the driving component 9 during vehicle driving) so that the buffer distance of the buffer body 2 after being moved by the buffer upper cover 1 satisfies the buffer adjustment The damping distance is a distance between the damping body 2 and a reservoir 62 of the vehicle shock absorber 6. In another aspect of the present invention, the adjustment member can be manually adjusted to adjust the distance between the damping body 2 and the oil reservoir 62 of the vehicle damper 6 during assembly or maintenance of the vehicle, so that the assembly and maintenance of the retarder and the damping body are easier.

In the above embodiment of the present invention, the vehicle vibration damper 6 is mounted on the vehicle body 7 through the buffer device, and the buffer body 2 of the buffer device can realize automatic adjustment of the height position in the vehicle body 7, that is, the height of the buffer body 2 relative to the vehicle body 7 can be changed by adjusting the position of the buffer body 2 in the buffer adjusting space 5 of the buffer upper cover 1 through the adjusting member 3; thus, the corresponding buffer distance of the automobile shock absorber 6 (the distance between the buffer body 2 and the oil storage cylinder 62 of the automobile shock absorber 6) is adjustable, and maintenance and assembly are facilitated. Specifically, when the damper 6 is installed, the cushion body 2 can be moved as far as possible from the position where the damper 6 is to be installed, so that a larger space can be provided for installation of the damper 6. Meanwhile, under different automobile running states, the buffer distance can be adjusted differently, that is, the buffer force of the automobile shock absorber 6 of the invention is not constant (in the actual running process of the automobile, the distance between the conventional shock absorber and the buffer body is not changed to ensure that the shock absorber has constant buffer force, therefore, the same buffer force is provided aiming at different running states, the driving comfort and stability of the automobile can not be well balanced in the buffer process of the shock absorber, for example, under the condition of lower constant buffer force setting, the driving comfort can be improved, but the stability of the automobile can not be ensured, on the contrary, under the condition of higher constant buffer force setting, the stability of the automobile can be kept, but the driving comfort of the automobile can correspondingly decrease), but corresponding adjustment can be made according to different automobile running states, so as to better balance the driving comfort and stability of the automobile; the invention has simple structure and stable operation, can bear larger impact and prolongs the service life. Understandably, in the invention, different buffer distance adjusting values can be set according to requirements for different vehicle types.

In one embodiment, as shown in fig. 1 to 3, a convex portion 12 is provided on the buffer upper cover 1, and the adjusting member 3 includes a first thread (not shown) provided on an inner side wall of the buffer adjusting space 5, and a second thread 31 provided on an outer side wall of the convex portion 12; the boss 12 is installed in the damper adjusting space 5 by the first screw and the second screw 31 which are screwed. Understandably, the receiving groove 13 for mounting the cushion body 2 may be provided at a position opposite to the convex portion 12, that is, the cushion body 2 in the receiving groove 13 is mounted into the cushion adjusting space 5 together with the convex portion 12. In this embodiment, the boss 12 may be screwed into the damper adjustment space 5 by a threaded connection between a first thread (i.e., an internal thread provided on an inner side wall of the damper adjustment space 5) and a second thread 31 (i.e., an external thread provided on an outer side wall of the boss 12). Wherein the thread length of the first thread and the second thread 31, the height of the buffer adjustment space 5 and the height of the convex part 12 all influence the height position of the buffer body 2 in the buffer adjustment space 5 and the adjustable range of the height of the buffer body 2 in the buffer adjustment space 5; therefore, the thread lengths of the first and second threads 31, the height dimensions of the mounting bracket 4 and the convex portion 12, and the size of the buffering adjustment space 5 need to be designed according to the vehicle type.

In an embodiment, as shown in fig. 1 and 2, the damping device further includes a driving assembly 9 for driving the adjusting member to move the damping body relative to the mounting bracket. Optionally, the driving assembly 9 comprises a driving motor 91, engaging teeth 92 arranged on the buffering upper cover 1, and a gear 93 arranged on an output shaft of the driving motor 91 and engaged with the engaging teeth 92; under the driving of the driving motor 91, the gear 93 drives the buffer upper cover 1 to rotate through the meshing teeth 92, and the cooperation of the first thread and the second thread 31 enables the buffer upper cover 1 to drive the buffer body to move relative to the mounting bracket. That is, the driving motor 91 may move the buffering upper cover 1 between the highest adjustable position and the lowest adjustable position in the buffering adjustment space 5. The extension length of the gear edge 93 in the vertical direction, which is provided on the output shaft of the driving motor 91, determines the movement range of the buffer body, and therefore, the extension length of the gear edge 93 in the vertical direction can be adaptively adjusted as needed to meet the needs.

Optionally, the driving motor 91 is a dc synchronous motor, which facilitates accurate control of the rotation amount. In the present invention, the damping device may not be driven by the driving assembly 9; that is, when the driving assembly 9 is not present, the damping device may be manually operated, that is, the adjustment of the damping distance between the damping body 2 and the oil reservoir 62 of the shock absorber may be achieved by manually rotating the damping upper cover 1 in the forward or reverse direction.

Preferably, when the convex portion 12 of the buffer upper cover 1 is installed in the buffer adjustment space 5 through the first screw and the second screw 31 that are screwed together, the gear 93 drives the buffer upper cover 1 to rotate through the meshing teeth 92 under the driving of the driving motor 91, and further drives the first screw and the second screw 31 to rotate relatively, thereby adjusting the height position of the buffer upper cover 1 in the buffer adjustment space 5. That is, in the present embodiment, as shown in fig. 1, the outer edge of the buffer upper cover 1 is provided with the engaging teeth 92, so that the driving motor 91 drives the buffer upper cover 1 to rotate through the gear 93 engaged with the engaging teeth 92, thereby driving the first screw thread and the second screw thread 31 to rotate relatively, and further driving the height positions of the buffer upper cover 1 and the buffer body 2 to change, and further, in the buffer adjustment space 5, the height position of the buffer upper cover 1 changes, which results in a change in the space height occupied by the protrusion 12 in the buffer adjustment space 5, so that the remaining unfilled space height in the buffer adjustment space 5 also changes correspondingly; at the same time, the vertical movement of the damping body 2 changes the damping distance between the damping body 2 and the oil reservoir 62 of the vehicle damper 6. In the invention, the shape and size of the meshing teeth 92 can be designed according to requirements, but the mutual meshing of the gear 93 and the meshing teeth 92 is ensured, and the length of the meshing teeth 92 is required to meet the up-and-down movement stroke of the upper buffer cover 1 in the buffer adjusting space 5; at the same time, the driving torque and the driving power of the driving motor 91 meet the rotation requirement of the buffering upper cover 1, that is, the driving motor 91 can drive the buffering upper cover 1 to move between the highest adjustable position and the lowest adjustable position in the buffering adjustment space 5 through the gear 93 and the meshing teeth 92.

Preferably, as shown in fig. 1, the gear 93 is disposed coaxially with an output shaft of the driving motor 91, and the output shaft of the driving motor 91 is disposed in parallel with the piston rod 61. Understandably, in the present invention, as long as the driving motor 91 can drive the buffer upper cover 1 to rotate through the gear 93 meshed with the meshing teeth 92, and further drive the first thread and the second thread 31 to rotate relatively, the gear 93 may not be arranged coaxially with the output shaft of the driving motor 91, but may be connected through a connecting device; similarly, the output shaft of the driving motor 91 does not necessarily need to be arranged parallel to the piston rod 61, but may be arranged according to a specific structure.

In one embodiment, an automobile is provided that includes the cushioning device. Optionally, the vehicle comprises a controller, a vehicle shock absorber 6 and one or more of the damping devices described in the above embodiments, which are all connected to the controller; specifically, the automobile shock absorber 6 includes a left front shock absorber, a right front shock absorber, a left rear shock absorber, and a right rear shock absorber; the left front shock absorber, the right front shock absorber, the left rear shock absorber and the right rear shock absorber are respectively connected with the automobile body 7 through the buffer devices. In this embodiment, the vehicle is equipped with at least four of the damping devices: the buffer device comprises a first buffer device, a second buffer device, a third buffer device and a fourth buffer device; the first buffer device is connected with the left front shock absorber, and the left front shock absorber is connected with the automobile body 7 through the first buffer device; the second buffer device is connected with the right front shock absorber, and the right front shock absorber is connected with an automobile body 7 through the second buffer device; the third buffer device is connected with the left rear shock absorber, and the left rear shock absorber is connected with the automobile body 7 through the third buffer device; the fourth buffer device is connected with the right rear shock absorber, and the right rear shock absorber is connected with the automobile body 7 through the fourth buffer device. Thus, one or more of the four buffering devices are controlled to adjust the buffering distance of the four buffering devices under different automobile running states through the mutual matching of the four buffering devices, so that the buffering force of the automobile shock absorber 6 is not constant under different automobile running states corresponding to different automobile running information, and can be correspondingly adjusted according to different automobile running states, and the driving comfort and the stability of the automobile can be better balanced; the buffer device is simple in structure and stable in operation, can bear large impact, and prolongs the service life. Understandably, in the invention, different buffer distance adjusting values of each buffer device can be set according to requirements aiming at different vehicle types and different vehicle running states.

In one embodiment, there is provided a buffer control method for realizing buffer control by the buffer device according to claim 1, when the buffer control method is the buffer control method for the above-mentioned automobile; the buffer control method is executed by the controller; the buffer control method comprises the following steps:

s10, determining the driving state of the automobile; understandably, the driving state of the automobile can be determined by the driving information of the automobile such as the driving speed of the automobile, the braking signal, the accelerating signal and the steering signal, the driving state of the automobile comprises a braking state, an accelerating state, a steering state and a bumping state (whether the current driving state of the automobile is the bumping state can be detected through vibration acceleration or a camera; for example, the current road image is shot through the camera, the current driving state of the automobile is confirmed to be the bumping state when the situation in the road image is uneven, the current vibration acceleration can be detected through an acceleration sensor, the current driving state of the automobile is confirmed to be the bumping state when the current vibration acceleration is confirmed to exceed a preset acceleration threshold value, and of course, whether the current driving state of the automobile is the bumping state can be detected through the combination of two modes of the vibration acceleration and the camera); specifically, the step S10 includes: receiving a vehicle can signal, and analyzing vehicle running information from the vehicle can signal; the automobile driving information comprises but is not limited to automobile driving speed, braking signals, acceleration signals, steering signal parameters and the like; and then, determining the automobile driving state according to the automobile driving information, namely, the controller obtains parameters such as the automobile driving speed, a braking signal, an accelerating signal, a steering signal and a bumping signal through an automobile can signal, and judging the automobile driving state according to the parameters, such as whether the automobile is in one or more of a braking state, an accelerating state or a steering state. However, in the present invention, the driving status of the vehicle may also be manually confirmed according to the road condition or real-time road condition, and the current driving status of the vehicle may be selected by the driver through a triggering manner such as pressing a preset entity or a virtual key (for example, in the case of uneven road surface, the driver may manually confirm that the vehicle enters the bumping status according to the current road condition), and then the device to be adjusted may be manually adjusted according to the driving status of the vehicle; alternatively, in the following step S20, the controller may determine the device to be adjusted and the damping adjustment parameter of the device to be adjusted according to the driving state of the vehicle.

S20, determining a device to be adjusted and a buffer adjustment parameter of the device to be adjusted according to the automobile running state; the device to be regulated refers to the buffer device which needs to be subjected to buffer regulation in all the buffer devices in the automobile; specifically, the devices to be adjusted may be different according to the driving state of the automobile; for example, when the driving state of the automobile is a braking state, the devices to be adjusted are a first buffer device and a second buffer device; when the automobile running state is an acceleration state, the devices to be adjusted are a third buffer device and a fourth buffer device; when the automobile driving state is a right steering state, the devices to be adjusted are a first buffer device and a third buffer device; when the automobile driving state is a left steering state, the device to be adjusted is a second buffer device and a fourth buffer device. When the automobile driving state is a bumping state, the device to be adjusted can be one or more of all the buffer devices. It is understood that the braking state, the accelerating state, the steering state or the bumping state may exist simultaneously, and in an embodiment, for different state combinations (for example, a combination of the accelerating state and the steering state or other possible combinations), the device to be adjusted corresponding to the state combination may be set, and then the buffering distance corresponding to the set device to be adjusted may be adjusted. In another embodiment, the device to be adjusted mentioned in the above description may be set only for each vehicle driving state (each of the braking state, the acceleration state, the steering state, or the bumping state), then the priority of each vehicle driving state may be set when a plurality of vehicle driving states coexist, and then the device to be adjusted corresponding to the vehicle driving state with the highest priority order may be selected as the device to be adjusted corresponding to the combination of the states.

And S30, adjusting the adjusting piece 3 of the device to be adjusted according to the buffering adjustment parameter to adjust the position of the buffering upper cover 1 of the device to be adjusted in the buffering adjustment space 5, so that the buffering distance of the buffering body 2 of the device to be adjusted after the buffering body moves under the drive of the buffering upper cover 1 meets the buffering adjustment parameter, wherein the buffering distance is the distance between the buffering body and an oil storage cylinder of the automobile shock absorber. That is, in the present invention, through the mutual cooperation of the plurality of buffering devices, the device to be adjusted in the plurality of buffering devices is controlled to adjust the buffering distance thereof in different driving states of the vehicle, so that the buffering distance after the buffering body 2 of the device to be adjusted is moved under the driving of the buffering upper cover 1 satisfies the buffering adjustment parameter. Therefore, under different automobile running states corresponding to different automobile running information, the buffering force of the automobile shock absorber 6 is not constant, but can be correspondingly adjusted according to different automobile running states, and the driving comfort and the stability of the automobile can be better balanced; the buffer device is simple in structure and stable in operation, can bear large impact, and prolongs the service life.

In one embodiment, the step S20 includes:

when the automobile driving state is a braking state, recording a first buffer device and a second buffer device as the devices to be adjusted, and simultaneously determining buffer adjustment parameters as reducing the buffer distance corresponding to the devices to be adjusted to a first distance; the first buffer device is a buffer device connected with a left front shock absorber of the automobile; the second buffer device is connected with a front right shock absorber of the automobile;

the step S30 includes:

the position of the upper buffer cover 1 in the buffer adjusting space 5 is lowered through the adjusting piece 3 of the device to be adjusted, so that the buffer body 2 of the device to be adjusted is driven by the upper buffer cover 1 to move downwards until the first buffer distance and the second buffer distance are both reduced to the first distance; the first damping distance is a distance between the oil cylinder 62 of the front left shock absorber and the damping body 2 of the first damping device, and the second damping distance is a distance between the oil cylinder 62 of the front right shock absorber and the damping body 2 of the second damping device.

That is, when the controller determines that the vehicle is in the braking state, it indicates that the vehicle starts to brake from the normal driving state; understandably, when the automobile is in a normal driving state, the buffer distance of each buffer device is a preset distance value; therefore, the damping distance between the damping body 2 and the oil reservoir 62 of the shock absorber is also fixed; after entering the braking state, the buffer bodies 2 of the first buffer device and the second buffer device (the first buffer device connected with the left front shock absorber and the second buffer device connected with the right front shock absorber which are respectively positioned at the left side and the right side of the front of the automobile) are required to move downwards so as to shorten the buffer distance of the two buffer devices (devices to be adjusted) to a first distance; understandably, first distance can be set according to the demand, but first distance is less than above-mentioned preset distance value, at above-mentioned in-process, treat that adjusting device's buffering upper cover 1 all moves down under driving motor 91's drive, so, buffering upper cover 1 drives buffering body 2 and moves down for the buffering distance between buffering body 2 and the oil storage section of thick bamboo 62 of shock absorber diminishes, reduces to first distance until the buffering distance, so, can touch buffering body 2 in advance when the suspension jumps, reduces the first angle of car brake point.

In one embodiment, the step S20 includes:

when the automobile driving state is an acceleration state, recording a third buffer device and a fourth buffer device as the devices to be adjusted, and simultaneously determining the buffer adjustment parameters as reducing the buffer distance corresponding to the devices to be adjusted to a second distance; the third buffer device is connected with a left rear shock absorber of the automobile; the fourth buffer device is a buffer device connected with a right rear shock absorber of the automobile;

the step S30 includes:

the position of the upper buffer cover 1 in the buffer adjusting space 5 is lowered through the adjusting piece 3 of the device to be adjusted, so that the buffer body 2 of the device to be adjusted is driven by the upper buffer cover 1 to move downwards until the third buffer distance and the fourth buffer distance are both reduced to the second distance; the third damping distance is a distance between the oil reservoir 62 of the left rear shock absorber and the damping body 2 of the third damping device, and the fourth damping distance is a distance between the oil reservoir 62 of the right rear shock absorber and the damping body 2 of the fourth damping device.

That is, when the controller determines that the vehicle is in the acceleration state, it indicates that the vehicle starts to accelerate from the normal driving state; understandably, when the automobile is in a normal driving state, the buffer distance of each buffer device is a preset distance value; therefore, the damping distance between the damping body 2 and the oil reservoir 62 of the shock absorber is also fixed; after entering the acceleration state, the buffer bodies 2 of the third buffer device and the fourth buffer device (the third buffer device connected with the left rear shock absorber and the fourth buffer device connected with the right rear shock absorber which are respectively positioned at the left side and the right side behind the automobile) are required to move downwards so as to shorten the buffer distance between the two buffer devices (devices to be adjusted) to a second distance; understandably, the second distance can be set according to the requirement, but the second distance is smaller than the preset distance value, in the process, the buffer upper cover 1 of the adjusting device is driven by the driving motor 91 to move downwards, so that the buffer upper cover 1 drives the buffer body 2 to move downwards, the buffer distance between the buffer body 2 and the oil storage cylinder 62 of the shock absorber is reduced until the buffer distance is reduced to the second distance, and thus, the buffer body 2 can be touched in advance when the suspension jumps up, and the acceleration head raising angle of the automobile is reduced.

In one embodiment, the step S20 includes:

when the automobile driving state is a steering state, if the current steering state is a right steering state, recording a first buffer device and a third buffer device as the devices to be adjusted, and simultaneously determining the buffer adjustment parameters as reducing the buffer distance corresponding to the devices to be adjusted to a third distance; the first buffer device is a buffer device connected with a left front shock absorber of the automobile; the third buffer device is connected with a left rear shock absorber of the automobile;

the step S30 includes:

the position of the upper buffer cover 1 in the buffer adjusting space 5 is lowered through the adjusting piece 3 of the device to be adjusted, so that the buffer body 2 of the device to be adjusted is driven by the upper buffer cover 1 to move downwards until the first buffer distance and the third buffer distance are both reduced to a third distance; the first damping distance is a distance between the oil cylinder 62 of the front left shock absorber and the damping body 2 of the first damping device, and the third damping distance is a distance between the oil cylinder 62 of the rear left shock absorber and the damping body 2 of the third damping device.

That is, when the controller determines that the vehicle is in the right steering state, it indicates that the vehicle starts to perform right steering from the normal driving state; understandably, when the automobile is in a normal driving state, the buffer distance of each buffer device is a preset distance value; therefore, the damping distance between the damping body 2 and the oil reservoir 62 of the shock absorber is also fixed; after entering the right steering state, the buffer bodies 2 of the first buffer device and the third buffer device (the first buffer device connected with the left front shock absorber and the third buffer device connected with the left rear shock absorber which are respectively positioned at the front side and the rear side of the left side of the automobile) are required to move downwards so as to shorten the buffer distance between the two buffer devices (devices to be adjusted) to a third distance; understandably, the third distance can be set according to the requirement, but the third distance is less than the preset distance value, in the process, the buffer upper cover 1 of the adjusting device is driven by the driving motor 91 to move downwards, so the buffer upper cover 1 drives the buffer body 2 to move downwards, the buffer distance between the buffer body 2 and the oil storage cylinder 62 of the shock absorber is reduced until the buffer distance is reduced to the third distance, and thus the buffer body 2 can be touched in advance when the suspension jumps, and the turning side inclination angle of the automobile is reduced.

In one embodiment, the step S20 includes:

when the automobile driving state is a steering state, if the current steering state is a left turn, recording a second buffer device and a fourth buffer device as the devices to be adjusted, and simultaneously determining the buffer adjustment parameters as reducing the buffer distance corresponding to the devices to be adjusted to a fourth distance; the second buffer device is connected with a front right shock absorber of the automobile; the fourth buffer device is a buffer device connected with a right rear shock absorber of the automobile;

the step S30 includes:

the position of the upper buffer cover 1 in the buffer adjusting space 5 is lowered through the adjusting piece 3 of the device to be adjusted, so that the buffer body 2 of the device to be adjusted is driven by the upper buffer cover 1 to move downwards until the second buffer distance and the fourth buffer distance are both reduced to a fourth distance; the second damping distance is a distance between the oil cylinder 62 of the front right shock absorber and the damping body 2 of the second damping device, and the fourth damping distance is a distance between the oil cylinder 62 of the rear right shock absorber and the damping body 2 of the fourth damping device.

That is, when the controller determines that the vehicle is in the left steering state, it indicates that the vehicle starts to turn left from the normal driving state; understandably, when the automobile is in a normal driving state, the buffer distance of each buffer device is a preset distance value; therefore, the damping distance between the damping body 2 and the oil reservoir 62 of the shock absorber is also fixed; after entering the left steering state, the buffer bodies 2 of the second buffer device and the fourth buffer device (the second buffer device connected with the right front shock absorber and the fourth buffer device connected with the right rear shock absorber which are respectively positioned at the front side and the rear side of the right side of the automobile) are required to move downwards so as to shorten the buffer distance between the two buffer devices (devices to be adjusted) to a fourth distance; understandably, the fourth distance can be set according to the requirement, but the fourth distance is less than the above-mentioned preset distance value, in the above-mentioned process, treat that adjusting device's buffering upper cover 1 all moves down under driving motor 91's drive, so, buffering upper cover 1 drives buffering body 2 and moves down for the buffering distance between buffering body 2 and the oil storage cylinder 62 of shock absorber diminishes, until the buffering distance reduces to the fourth distance, so, can touch buffering body 2 in advance when the suspension jumps, reduce the car and turn the heeling angle.

In one embodiment, the step S20 includes:

when the automobile driving state is a bumping state, selecting at least one buffer device of the automobile as the device to be adjusted, and determining the buffer adjustment parameter as increasing the buffer distance corresponding to the device to be adjusted to a fifth distance;

the step S30 includes:

the position of the buffer upper cover in the buffer adjusting space is lifted through the adjusting piece of the device to be adjusted, so that the buffer body of the device to be adjusted is driven by the buffer upper cover to move upwards until the buffer distance between the buffer body of the device to be adjusted and the oil storage cylinder of the automobile shock absorber is increased to a fifth distance.

That is, when the controller determines that the vehicle is in the buffering state, it indicates that the vehicle starts to bump from the normal driving state; understandably, when the automobile is in a normal driving state, the buffer distance of each buffer device is a preset distance value; therefore, the damping distance between the damping body 2 and the oil reservoir 62 of the shock absorber is also fixed; after entering a bumping state, one or more of all the buffering devices are selected as devices to be adjusted, and then the selected devices to be adjusted are moved upwards to increase the buffering distance of the devices to be adjusted to a fifth distance; understandably, the fifth distance can be set according to the demand, but the fifth distance is greater than the above-mentioned preset distance value, in the above-mentioned process, treat that adjusting device's buffering upper cover 1 all upwards moves under driving motor 91's drive, thus, buffering upper cover 1 drives buffering body 2 and moves up, make the buffering distance grow between buffering body 2 and the oil storage section of thick bamboo 62 of shock absorber, increase to the fifth distance until the buffering distance, so, can make the motion stroke increase of shock absorber, can reduce the steady of maintaining the car under the relatively poor road conditions of road surface injustice, promote car passenger's comfort level.

Understandably, the sizes of the first distance, the second distance, the third distance and the fourth distance can be set to be the same or different according to requirements; but the fifth distance is greater than any of the first distance, the second distance, the third distance, and the fourth distance.

The controller comprises a plurality of modules, wherein each module can be completely or partially realized by software, hardware and a combination thereof. The modules can be embedded in a hardware form or independent from a processor in the computer device, and can also be stored in a memory in the computer device in a software form, so that the processor can call and execute operations corresponding to the above buffer control method.

It will be understood by those of ordinary skill in the art that all or part of the processes of the methods of the embodiments described above can be implemented by hardware associated with computer readable instructions, which can be stored in a non-volatile computer readable storage medium, and when executed, can include processes of the embodiments of the methods described above. Any reference to memory, storage, databases, or other media used in embodiments provided herein may include non-volatile and/or volatile memory. Non-volatile memory can include read-only memory (ROM), Programmable ROM (PROM), Electrically Programmable ROM (EPROM), Electrically Erasable Programmable ROM (EEPROM), or flash memory. Volatile memory can include Random Access Memory (RAM) or external cache memory. By way of illustration and not limitation, RAM is available in a variety of forms such as Static RAM (SRAM), Dynamic RAM (DRAM), Synchronous DRAM (SDRAM), Double Data Rate SDRAM (DDRSDRAM), Enhanced SDRAM (ESDRAM), Synchronous Link DRAM (SLDRAM), Rambus Direct RAM (RDRAM), Direct Rambus Dynamic RAM (DRDRAM), and Rambus Dynamic RAM (RDRAM).

It will be apparent to those skilled in the art that, for convenience and brevity of description, only the above-mentioned division of each functional unit or module is illustrated, and in practical applications, the above-mentioned function distribution may be performed by different functional units or modules according to needs, that is, the internal structure of the system is divided into different functional units or modules to perform all or part of the above-mentioned functions.

The above-mentioned embodiments are only used for illustrating the technical solutions of the present invention, and not for limiting the same; although the present invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; such modifications and substitutions do not substantially depart from the spirit and scope of the embodiments of the present invention, and are intended to be included within the scope of the present invention.

Claims

1. The damping device is characterized by comprising a damping body and a mounting bracket mounted on an automobile body; a buffer adjusting space is formed on the mounting bracket, and the buffer body is mounted in the buffer adjusting space;

2. The damper of claim 1, further comprising a drive assembly for driving movement of the damper relative to the mounting bracket.

3. The buffering device as claimed in claim 1, further comprising a buffering upper cover, wherein the buffering body is connected with the buffering upper cover, and the buffering upper cover is installed in the installation space;

the buffer body is provided with a first through hole, the buffer upper cover is provided with a second through hole, and the mounting bracket is provided with a third through hole; one end, far away from the oil storage cylinder, of a piston rod of the automobile shock absorber sequentially penetrates through the first through hole, the second through hole and the third through hole.

4. The damping device according to claim 3, wherein the first screw thread on the inner side wall of the damping adjustment space, the second screw thread on the outer side wall of the damping upper cover; the buffering upper cover is installed in the buffering adjusting space through the first thread and the second thread which are connected in a threaded mode.

5. The damper of claim 4, further comprising a drive assembly for driving movement of the damper relative to the mounting bracket;

the driving assembly comprises a driving motor, meshing teeth arranged on the buffer upper cover and a gear which is arranged on an output shaft of the driving motor and meshed with the meshing teeth; the driving motor is used for driving the buffer upper cover to rotate, and the buffer upper cover is driven to move by the rotation of the buffer upper cover through the matching of the first threads and the second threads.

6. A buffer control method, characterized in that the buffer control method realizes buffer control by the buffer device according to claim 1; the buffer control method comprises the following steps:

determining the driving state of the automobile;

7. The buffer control method according to claim 6, wherein the determining the vehicle running state includes:

receiving a vehicle can signal, and analyzing vehicle running information from the vehicle can signal; the automobile running information comprises automobile running speed, braking signals, acceleration signals and steering signal parameters;

and determining the driving state of the automobile according to the driving information of the automobile, wherein the driving state of the automobile comprises a braking state, an accelerating state, a steering state and a bumping state.

8. The damping control method according to claim 6, wherein the determining a device to be adjusted and a damping adjustment parameter of the device to be adjusted according to the driving state of the vehicle includes:

the adjusting the buffer body of the device to be adjusted according to the buffer adjustment parameter so that the buffer distance of the buffer body of the device to be adjusted after the buffer body moves under the driving of the buffer upper cover meets the buffer adjustment parameter, and the adjusting method comprises the following steps:

the buffer body of the first buffer device and the buffer body of the second buffer device move downwards until the first buffer distance and the second buffer distance are reduced to the first distance; the first buffer distance is a distance between the oil storage cylinder of the front left shock absorber and the buffer body of the first buffer device, and the second buffer distance is a distance between the oil storage cylinder of the front right shock absorber and the buffer body of the second buffer device.

9. The damping control method according to claim 6, wherein the determining a device to be adjusted and a damping adjustment parameter of the device to be adjusted according to the driving state of the vehicle includes:

the buffer body of the third buffer device and the buffer body of the fourth buffer device move downwards until the third buffer distance and the fourth buffer distance are reduced to the second distance; the third buffer distance is a distance between the oil storage cylinder of the left rear shock absorber and the buffer body of the third buffer device, and the fourth buffer distance is a distance between the oil storage cylinder of the right rear shock absorber and the buffer body of the fourth buffer device.

10. The damping control method according to claim 6, wherein the determining a device to be adjusted and a damping adjustment parameter of the device to be adjusted according to the driving state of the vehicle includes:

the buffer body of the first buffer device and the buffer body of the third buffer device move downwards until the first buffer distance and the third buffer distance are reduced to a third distance; the first buffer distance is a distance between the oil storage cylinder of the front left shock absorber and the buffer body of the first buffer device, and the third buffer distance is a distance between the oil storage cylinder of the rear left shock absorber and the buffer body of the third buffer device.

11. The damping control method according to claim 6, wherein the determining a device to be adjusted and a damping adjustment parameter of the device to be adjusted according to the driving state of the vehicle includes:

the buffer body of the second buffer device and the buffer body of the fourth buffer device move downwards until the second buffer distance and the fourth buffer distance are reduced to a fourth distance; the second buffer distance is a distance between the oil storage cylinder of the front right shock absorber and the buffer body of the second buffer device, and the fourth buffer distance is a distance between the oil storage cylinder of the rear right shock absorber and the buffer body of the fourth buffer device.

12. The damping control method according to claim 6, wherein the determining a device to be adjusted and a damping adjustment parameter of the device to be adjusted according to the driving state of the vehicle includes:

when the automobile driving state is a bumping state, selecting at least one buffer device in the automobile as the device to be adjusted, and determining the buffer adjustment parameter as increasing the buffer distance corresponding to the device to be adjusted to a fifth distance;

and moving the buffer body upwards until the buffer distance between the buffer body of the device to be adjusted and an oil storage cylinder of the automobile shock absorber is increased to a fifth distance.

13. An automobile, characterized by comprising a damping device according to any one of claims 1 to 5.