Power assembly suspension system of vehicle and control method of power assembly suspension system

Abstract

The invention belongs to the technical field of vehicle engineering, and particularly relates to a power assembly suspension system of a vehicle and a control method of the power assembly suspension system. The power assembly suspension system of the vehicle comprises a visual perception unit, a judgment unit, a control unit and a plurality of suspension mechanisms with adjustable rigidity. Each suspension mechanism is connected between a power assembly and a frame of the vehicle and is used for attenuating vibration transmission between the power assembly and the frame; the visual perception unit is used for collecting road surface image information in front of a vehicle and sending the collected road surface image information to the judgment unit. The judgment unit is used for judging the road condition in front of the vehicle according to the received road surface image information and sending stable road condition information or bumpy road condition information to the control unit according to a judgment result; and the control unit is used for adjusting the rigidity of each suspension mechanism according to the received stable road condition information or bumpy road condition information.

Description

Technical Field

[0001] The present invention belongs to the technical field of vehicle engineering, and in particular relates to a vehicle powertrain suspension system and a control method thereof. Background Art

[0002] The powertrain suspension system refers to the components that connect the powertrain (engine, starter motor, etc.) and the frame. The powertrain is the main excitation source of the car. As the main system to isolate the excitation, the performance of the powertrain suspension system directly affects the NVH level of the whole vehicle. The NVH level refers to the levels of noise (Noise), vibration (Vibration) and sound roughness (Harshness), which is an important indicator for evaluating the comfort and quality of the car.

[0003] In order to ensure NVH performance, the powertrain of existing vehicles is usually softly connected to the vehicle body through a powertrain suspension system. The stiffness of the powertrain suspension system is usually not too large. However, this will cause the vehicle using the existing powertrain suspension system to be difficult to suppress the amplitude of the powertrain after the impact is transmitted from the vehicle body to the powertrain when driving on bumpy roads. It is easy to cause the powertrain to vibrate up and down, and transmit it back to the vehicle body to drive the whole vehicle to vibrate, causing the impact to be amplified and residual vibration to be generated, seriously affecting the comfort of the vehicle when driving on bumpy roads. Summary of the invention

[0004] In order to solve the defects of the above-mentioned prior art, the present invention provides a vehicle powertrain suspension system and a control method thereof to solve the problem that when a vehicle using the existing powertrain suspension system is driving on a bumpy road, after the impact is transmitted from the vehicle body to the powertrain, the existing powertrain suspension system is difficult to suppress the amplitude of the powertrain, which easily causes the powertrain to vibrate up and down, and transmits the impact in reverse to the vehicle body to drive the whole vehicle to vibrate, causing the impact to be amplified and generate residual vibration, seriously affecting the comfort of the vehicle when driving on a bumpy road.

[0005] In order to achieve the above-mentioned object, the technical solution of the present invention is as follows: a vehicle powertrain suspension system, comprising a visual perception unit, a judgment unit, a control unit, and a plurality of suspension mechanisms with adjustable stiffness;

[0006] Each of the suspension mechanisms is connected between the powertrain and the frame of the vehicle, and is used to attenuate the vibration transmission between the powertrain and the frame;

[0007] The visual perception unit is used to collect road surface image information in front of the vehicle and send the collected road surface image information to the judgment unit;

[0008] The judging unit is used to judge the road condition ahead of the vehicle according to the received road image information, and send smooth road condition information or bumpy road condition information to the control unit according to the judgment result;

[0009] The control unit is used to adjust the stiffness of each suspension mechanism according to the received smooth road condition information or the bumpy road condition information.

[0010] The judgment unit is used to judge the road condition in front of the vehicle according to the received road image information, and the control unit is used to adjust the stiffness of each suspension mechanism according to the received smooth road condition information or the bumpy road condition information; so that the powertrain suspension system of the vehicle provided by the present invention can adjust the stiffness of each suspension mechanism according to the different road conditions (bumpy road conditions or smooth road conditions) in front of the vehicle, and when the vehicle is traveling on a smooth road, each suspension mechanism is adjusted to a smaller stiffness to ensure the NVH performance of the vehicle, and when the vehicle is traveling on a bumpy road, the stiffness of each suspension mechanism is increased to ensure the NVH performance of the vehicle. The amplitude of the powertrain is suppressed to prevent the powertrain from vibrating up and down, and transmitting the impact in reverse to the vehicle body to drive the whole vehicle to vibrate, causing the impact to be amplified and residual vibration to occur, thereby improving the comfort of the vehicle when driving on bumpy roads. The problem that when a vehicle using the existing powertrain suspension system drives on bumpy roads, after the impact is transmitted from the vehicle body to the powertrain, the existing powertrain suspension system is difficult to suppress the amplitude of the powertrain, which easily causes the powertrain to vibrate up and down, and transmits the impact in reverse to the vehicle body to drive the whole vehicle to vibrate, causing the impact to be amplified and residual vibration to occur, seriously affecting the comfort of the vehicle when driving on bumpy roads is solved.

[0011] Furthermore, each of the suspension mechanisms is symmetrically arranged on the left and right sides of the power assembly.

[0012] Furthermore, the number of the suspension mechanisms is four, and the two suspension mechanisms on the same side are arranged at intervals along the front-rear direction of the vehicle.

[0013] Further, the suspension mechanism includes a housing, an airbag, a rubber base, a connecting rod and a vibration block;

[0014] The housing is fixedly connected to the vehicle frame, and the housing is open on one side facing the power assembly;

[0015] The lower side of the rubber base is integrally formed with the lower side of the inner cavity of the shell through a vulcanization process, and the upper side of the rubber base is integrally formed with the lower side of the vibration block through a vulcanization process;

[0016] The airbag is fixedly mounted on the upper side of the inner cavity of the shell, and the airbag is used to abut against the upper side of the vibration block; the connecting rod is arranged along the left and right direction of the vehicle, and the connecting rod is fixedly connected between the power assembly and the vibration block;

[0017] The control unit includes a controller, an air-inflating and air-discharging mechanism and a plurality of air tubes; each of the shells is connected to a corresponding air tube, one end of each air tube penetrates into the inner cavity of the corresponding shell and is connected to the airbag in the shell, and the other end is connected to the air-inflating and air-discharging mechanism;

[0018] The controller is used to control the inflation and deflation mechanism to adjust the air pressure in each airbag according to the received smooth road condition information or the bumpy road condition information, so as to adjust the stiffness of each suspension mechanism.

[0019] Furthermore, the suspension mechanism further includes a first limiting rubber block, which is integrally formed with the upper side surface of the inner cavity of the shell through a vulcanization process;

[0020] An installation opening is provided on the upper side of the airbag, and the airbag is covered on the first limiting rubber through the installation opening. The outer edge of the installation opening is integrally formed with the upper side surface of the inner cavity of the shell through a vulcanization process to form a gas chamber between the inner side surface of the airbag and the first limiting rubber.

[0021] One end of the gas pipe connected to the corresponding shell penetrates into the gas chamber from the upper side of the shell;

[0022] The first limiting rubber is used to limit the upward movement of the vibration block.

[0023] By setting the first limit block, the upward movement of the vibration block can be limited, providing a limit protection function.

[0024] Furthermore, the suspension mechanism further includes a second limiting rubber block; the second limiting rubber block is integrally formed with the front side surface of the inner cavity of the shell through a vulcanization process;

[0025] The second limiting rubber is arranged on the front side of the vibration block, and the second limiting block is used to limit the forward movement of the vibration block.

[0026] By setting the second limit block, the forward movement of the vibration block can be limited, providing a limit protection function.

[0027] Furthermore, the suspension mechanism further includes a third limiting rubber block; the third limiting rubber block is integrally formed with the rear side surface of the inner cavity of the shell through a vulcanization process;

[0028] The third limiting rubber is arranged at the rear side of the vibration block, and the third limiting block is used to limit the backward movement of the vibration block.

[0029] By setting the third limit block, the forward movement of the vibration block can be limited, providing a limit protection function.

[0030] Furthermore, the rubber base is in the shape of a frustum that is smaller at the top and larger at the bottom.

[0031] By configuring the rubber base to be in a truncated cone shape that is smaller at the top and larger at the bottom, the supporting stability of the rubber base on the power assembly and the vibration block can be effectively improved.

[0032] Based on the powertrain suspension system of a vehicle provided by the present invention, the present invention also provides a control method of the powertrain suspension system of a vehicle, the control method comprising:

[0033] The visual perception unit collects road surface image information in front of the vehicle and sends the collected road surface image information to the judgment unit;

[0034] The judging unit judges the road condition ahead of the vehicle according to the received road image information, and sends smooth road condition information or bumpy road condition information to the control unit according to the judgment result;

[0035] The control unit adjusts the stiffness of each suspension mechanism connected between the powertrain and the frame of the vehicle according to the received smooth road condition information or the bumpy road condition information.

[0036] Furthermore, the method for the control unit to adjust the stiffness of each suspension mechanism connected between the powertrain and the frame of the vehicle according to the received smooth road condition information or the bumpy road condition information includes:

[0037] The controller of the control unit controls the inflation and deflation mechanism of the control unit to adjust the air pressure in the airbag of each suspension mechanism according to the received smooth road condition information or the bumpy road condition information, so as to adjust the stiffness of each suspension mechanism.

[0038] Further, if the controller receives the smooth road condition information, the controller controls the inflation and deflation mechanism to adjust the air pressure in each of the airbags to a first preset air pressure value; if the controller receives the bumpy road condition information, the controller controls the inflation and deflation mechanism to adjust the air pressure in each of the airbags to a second preset air pressure value;

[0039] Wherein, the second preset air pressure value is greater than the first preset air pressure value.

[0040] Among them, the acquisition of the first preset air pressure value and the second preset air pressure value can be carried out by obtaining the mapping relationship between the air pressure in the airbag of the suspension mechanism and the stiffness of the suspension mechanism through a calibration test, that is, according to the mapping relationship and the first target stiffness of the suspension mechanism under smooth road conditions, the corresponding first preset air pressure value is obtained; according to the mapping relationship and the second target stiffness of the suspension mechanism under bumpy road conditions, the corresponding second preset air pressure value is obtained. BRIEF DESCRIPTION OF THE DRAWINGS

[0041] In order to more clearly illustrate the technical solution of the present invention, the drawings required for use in the implementation mode will be briefly introduced below. Obviously, the drawings described below are only some implementation modes of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0042] Figure 1 is a schematic diagram of the assembly structure of the powertrain suspension system, frame and powertrain of the vehicle in the embodiment;

[0043] Figure 2 is a structural schematic diagram of a suspension mechanism in an embodiment;

[0044] Among them, 1—suspension mechanism, 2—frame, 3—powertrain;

[0045] 1.1—housing, 1.2—airbag, 1.3—rubber base, 1.4—connecting rod, 1.5—vibration block, 1.6—first limit rubber, 1.7—gas chamber, 1.8—second limit rubber, 1.9—third limit rubber. DETAILED DESCRIPTION

[0046] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0047] Embodiment 1:

[0048] like Figure 1 to Figure 2 As shown, embodiment 1 provides a powertrain suspension system for a vehicle, comprising a visual perception unit, a judgment unit, a control unit, and a plurality of suspension mechanisms 1 with adjustable stiffness;

[0049] Each suspension mechanism 1 is connected between the powertrain 3 and the frame 2 of the vehicle, and is used to attenuate the vibration transmission between the powertrain 3 and the frame 2;

[0050] The visual perception unit is used to collect road surface image information in front of the vehicle and send the collected road surface image information to the judgment unit;

[0051] The judging unit is used to judge the road condition ahead of the vehicle according to the received road image information, and send the smooth road condition information or the bumpy road condition information to the control unit according to the judging result;

[0052] The control unit is used to adjust the stiffness of each suspension mechanism 1 according to the received smooth road condition information or bumpy road condition information.

[0053] The judgment unit is used to judge the road condition in front of the vehicle according to the received road image information, and the control unit is used to adjust the stiffness of each suspension mechanism 1 according to the received smooth road condition information or bumpy road condition information; so that the powertrain suspension system of the vehicle provided by the present invention can adjust the stiffness of each suspension mechanism 1 according to the different road conditions (bumpy road conditions or smooth road conditions) in front of the vehicle, and when the vehicle is traveling on a smooth road, each suspension mechanism 1 is adjusted to a smaller stiffness to ensure the NVH performance of the vehicle, and when the vehicle is traveling on a bumpy road, the stiffness of each suspension mechanism 1 is increased to suppress the amplitude of the powertrain 3. , avoiding the up and down vibration of the powertrain 3, and transmitting it in the reverse direction to the vehicle body to drive the whole vehicle to vibrate, causing the impact to be amplified and residual vibration to occur, thereby improving the comfort of the vehicle when driving on bumpy roads, and solving the problem that when a vehicle using the existing powertrain suspension system drives on bumpy roads, after the impact is transmitted from the vehicle body to the powertrain 3, the existing powertrain suspension system is difficult to suppress the amplitude of the powertrain 3, which easily causes the powertrain 3 to vibrate up and down, and transmits it in the reverse direction to the vehicle body to drive the whole vehicle to vibrate, causing the impact to be amplified and residual vibration to occur, seriously affecting the comfort of the vehicle when driving on bumpy roads.

[0054] like Figure 1 As shown, in this embodiment 1, each suspension mechanism 1 is symmetrically arranged on the left and right sides of the power assembly 3 .

[0055] Preferably, in this embodiment 1, the number of the suspension mechanisms 1 is four, and the two suspension mechanisms 1 on the same side are arranged at intervals along the front-rear direction of the vehicle.

[0056] In one embodiment, if Figure 1 and Figure 2 As shown, the suspension mechanism 1 includes a housing 1.1, an airbag 1.2, a rubber base 1.3, a connecting rod 1.4 and a vibration block 1.5;

[0057] The housing 1.1 is fixedly connected to the vehicle frame 2, and one side of the housing 1.1 facing the power assembly 3 is open;

[0058] The lower side of the rubber base 1.3 is integrally formed with the lower side of the inner cavity of the housing 1.1 through a vulcanization process, and the upper side of the rubber base 1.3 is integrally formed with the lower side of the vibration block 1.5 through a vulcanization process;

[0059] The airbag 1.2 is fixedly mounted on the upper side of the inner cavity of the housing 1.1, and the airbag 1.2 is used to abut against the upper side of the vibration block 1.5; the connecting rod 1.4 is arranged along the left and right direction of the vehicle, and the connecting rod 1.4 is fixedly connected between the power assembly 3 and the vibration block 1.5;

[0060] The control unit includes a controller, an air-charging and air-discharging mechanism and a plurality of air tubes; each housing 1.1 is connected to a corresponding air tube, one end of each air tube penetrates into the inner cavity of the corresponding housing 1.1 and is connected to the airbag 1.2 in the housing 1.1, and the other end is connected to the air-charging and air-discharging mechanism;

[0061] The controller is used to control the inflation and deflation mechanism to adjust the air pressure in each airbag 1.2 according to the received smooth road condition information or bumpy road condition information, so as to adjust the stiffness of each suspension mechanism 1.

[0062] Preferably, in this embodiment 1, Figure 2 As shown, the suspension mechanism 1 further includes a first limit rubber 1.6, which is integrally formed with the upper side surface of the inner cavity of the housing 1.1 through a vulcanization process;

[0063] An installation opening is provided on the upper side of the airbag 1.2, and the airbag 1.2 is covered on the outside of the first limiting rubber 1.6 through the installation opening. The outer edge of the installation opening is integrally formed with the upper side surface of the inner cavity of the shell 1.1 through a vulcanization process, so as to form a gas chamber 1.7 between the inner side surface of the airbag 1.2 and the first limiting rubber 1.6;

[0064] One end of the gas pipe connected to the corresponding housing 1.1 penetrates into the gas chamber 1.7 from the upper side of the housing 1.1;

[0065] The first limiting rubber 1.6 is used to limit the upward movement of the vibration block 1.5.

[0066] By setting the first limit block, the upward movement of the vibration block 1.5 can be limited, providing a limit protection function.

[0067] Preferably, in this embodiment 1, Figure 2 As shown, the suspension mechanism 1 also includes a second limiting rubber 1.8; the second limiting rubber 1.8 is integrally formed with the front side of the inner cavity of the shell 1.1 through a vulcanization process; the second limiting rubber 1.8 is arranged on the front side of the vibration block 1.5, and the second limiting block is used to limit the forward movement of the vibration block 1.5.

[0068] By setting the second limit block, the forward movement of the vibration block 1.5 can be limited, providing a limit protection function.

[0069] Preferably, in this embodiment 1, Figure 2As shown, the suspension mechanism 1 also includes a third limiting rubber 1.9; the third limiting rubber 1.9 is integrally formed with the rear side of the inner cavity of the shell 1.1 through a vulcanization process; the third limiting rubber 1.9 is arranged on the rear side of the vibration block 1.5, and the third limiting block is used to limit the backward movement of the vibration block 1.5.

[0070] By setting the third limit block, the forward movement of the vibration block 1.5 can be limited, providing a limit protection function.

[0071] Preferably, in this embodiment 1, Figure 2 As shown, the rubber base 1.3 is in the shape of a frustum that is smaller at the top and larger at the bottom.

[0072] By configuring the rubber base 1.3 to be in a truncated cone shape that is smaller at the top and larger at the bottom, the supporting stability of the rubber base 1.3 on the power assembly 3 and the vibration block 1.5 can be effectively improved.

[0073] Embodiment 2:

[0074] Based on the powertrain mounting system of a vehicle provided in Example 1, Example 2 provides a control method for the powertrain mounting system of a vehicle, and the control method includes:

[0075] The visual perception unit collects road surface image information in front of the vehicle and sends the collected road surface image information to the judgment unit;

[0076] The judging unit judges the road condition ahead of the vehicle according to the received road image information, and sends the smooth road condition information or the bumpy road condition information to the control unit according to the judging result;

[0077] The control unit adjusts the stiffness of each suspension mechanism 1 connected between the powertrain 3 and the frame 2 of the vehicle according to the received smooth road condition information or bumpy road condition information.

[0078] Specifically, in this embodiment 2, the method for the control unit to adjust the stiffness of each suspension mechanism 1 connected between the powertrain 3 and the frame 2 of the vehicle according to the received smooth road condition information or bumpy road condition information includes:

[0079] The controller of the control unit controls the inflation and deflation mechanism of the control unit to adjust the air pressure in the airbag 1 . 2 of each suspension mechanism 1 according to the received smooth road condition information or bumpy road condition information, so as to adjust the stiffness of each suspension mechanism 1 .

[0080] Specifically, in the second embodiment, if the controller receives smooth road condition information, the controller controls the inflation and deflation mechanism to adjust the air pressure in each airbag 1.2 to the first preset air pressure value; if the controller receives bumpy road condition information, the controller controls the inflation and deflation mechanism to adjust the air pressure in each airbag 1.2 to the second preset air pressure value;

[0081] The second preset air pressure value is greater than the first preset air pressure value.

[0082] Specifically, in the present embodiment 2, the first preset air pressure value and the second preset air pressure value can be obtained by obtaining the mapping relationship between the air pressure in the airbag 1.2 of the suspension mechanism 1 and the stiffness of the suspension mechanism 1 through a calibration test, that is, according to the mapping relationship and the first target stiffness of the suspension mechanism 1 under smooth road conditions, the corresponding first preset air pressure value can be obtained; according to the mapping relationship and the second target stiffness of the suspension mechanism 1 under bumpy road conditions, the corresponding second preset air pressure value can be obtained.

[0083] The vehicle powertrain suspension system and control method thereof provided by the present invention have at least the following technical effects or advantages:

[0084] 1. Using a judgment unit to judge the road condition in front of the vehicle according to the received road image information, and using a control unit to adjust the stiffness of each suspension mechanism 1 according to the received smooth road condition information or bumpy road condition information; so that the powertrain suspension system of the vehicle provided by the present invention can adjust the stiffness of each suspension mechanism 1 according to different road conditions (bumpy road conditions or smooth road conditions) in front of the vehicle, and when the vehicle is traveling on a smooth road, each suspension mechanism 1 is adjusted to a smaller stiffness to ensure the NVH performance of the vehicle, and when the vehicle is traveling on a bumpy road, the stiffness of each suspension mechanism 1 is increased to suppress the vibration of the powertrain 3. The vibration amplitude of the powertrain 3 is prevented, and the vibration is transmitted back to the vehicle body to drive the whole vehicle to vibrate, causing the impact to be amplified and residual vibration to occur, thereby improving the comfort of the vehicle when driving on bumpy roads. The problem that when a vehicle using the existing powertrain suspension system drives on a bumpy road, after the impact is transmitted from the vehicle body to the powertrain 3, the existing powertrain suspension system is difficult to suppress the amplitude of the powertrain 3, which easily causes the powertrain 3 to vibrate up and down, and transmits it back to the vehicle body to drive the whole vehicle to vibrate, causing the impact to be amplified and residual vibration to occur, seriously affecting the comfort of the vehicle when driving on a bumpy road is solved.

[0085] 2. By setting the first limit block, the upward movement of the vibration block 1.5 can be limited, providing a limit protection function.

[0086] 3. By setting the second limit block, the forward movement of the vibration block 1.5 can be limited, providing a limit protection function.

[0087] 4. By setting the third limit block, the forward movement of the vibration block 1.5 can be limited, providing a limit protection function.

[0088] 5. By setting the rubber base 1.3 to be a truncated cone with a small top and a large bottom, the supporting stability of the rubber base 1.3 on the power assembly 3 and the vibration block 1.5 can be effectively improved.

[0089] The above are only specific application examples of the present invention and do not constitute any limitation to the protection scope of the present invention. Any technical solutions formed by equivalent transformation or equivalent replacement shall fall within the protection scope of the present invention.

Claims

1. A vehicle powertrain suspension system, characterized in that: It includes a visual perception unit, a judgment unit, a control unit, and a plurality of suspension mechanisms with adjustable stiffness; Each of the suspension mechanisms is connected between the powertrain and the frame of the vehicle, and is used to attenuate the vibration transmission between the powertrain and the frame; The visual perception unit is used to collect road surface image information in front of the vehicle and send the collected road surface image information to the judgment unit; The judging unit is used to judge the road condition ahead of the vehicle according to the received road image information, and send smooth road condition information or bumpy road condition information to the control unit according to the judgment result; The control unit is used to adjust the stiffness of each suspension mechanism according to the received smooth road condition information or the bumpy road condition information.

2. The vehicle powertrain suspension system according to claim 1, characterized in that: The suspension mechanisms are symmetrically arranged on the left and right sides of the power assembly.

3. The vehicle powertrain suspension system according to claim 2, characterized in that: The number of the suspension mechanisms is four, and two suspension mechanisms on the same side are arranged at intervals along the front-rear direction of the vehicle.

4. The vehicle powertrain suspension system according to claim 2, characterized in that: The suspension mechanism comprises a housing, an air bag, a rubber base, a connecting rod and a vibration block; The housing is fixedly connected to the vehicle frame, and the housing is open on one side facing the power assembly; The lower side of the rubber base is integrally formed with the lower side of the inner cavity of the shell through a vulcanization process, and the upper side of the rubber base is integrally formed with the lower side of the vibration block through a vulcanization process; The airbag is fixedly mounted on the upper side of the inner cavity of the shell, and the airbag is used to abut against the upper side of the vibration block; the connecting rod is arranged along the left and right direction of the vehicle, and the connecting rod is fixedly connected between the power assembly and the vibration block; The control unit includes a controller, an air-inflating and air-discharging mechanism and a plurality of air tubes; each of the shells is connected to a corresponding air tube, one end of each air tube penetrates into the inner cavity of the corresponding shell and is connected to the airbag in the shell, and the other end is connected to the air-inflating and air-discharging mechanism; The controller is used to control the inflation and deflation mechanism to adjust the air pressure in each airbag according to the received smooth road condition information or the bumpy road condition information, so as to adjust the stiffness of each suspension mechanism.

5. The vehicle powertrain suspension system according to claim 4, characterized in that: The suspension mechanism further includes a first limiting rubber block, which is integrally formed with the upper side surface of the inner cavity of the shell through a vulcanization process; An installation opening is provided on the upper side of the airbag, and the airbag is covered on the first limiting rubber through the installation opening. The outer edge of the installation opening is integrally formed with the upper side surface of the inner cavity of the shell through a vulcanization process to form a gas chamber between the inner side surface of the airbag and the first limiting rubber. One end of the gas pipe connected to the corresponding shell penetrates into the gas chamber from the upper side of the shell; The first limiting rubber is used to limit the upward movement of the vibration block.

6. The vehicle powertrain suspension system according to claim 4, characterized in that: The suspension mechanism also includes a second limiting rubber block; the second limiting rubber block is integrally formed with the front side of the inner cavity of the shell through a vulcanization process; the second limiting rubber is arranged on the front side of the vibration block, and the second limiting block is used to limit the forward movement of the vibration block.

7. The vehicle powertrain suspension system according to claim 4, characterized in that: The suspension mechanism also includes a third limiting rubber block; the third limiting rubber block is integrally formed with the rear side of the inner cavity of the shell through a vulcanization process; the third limiting rubber is arranged on the rear side of the vibration block, and the third limiting block is used to limit the backward movement of the vibration block.

8. The vehicle powertrain suspension system according to claim 4, characterized in that: The rubber base is in the shape of a truncated cone that is small at the top and large at the bottom.

9. A control method for a powertrain suspension system of a vehicle, characterized in that: According to the powertrain suspension system of a vehicle according to any one of claims 1 to 8, the control method comprises: The visual perception unit collects road surface image information in front of the vehicle and sends the collected road surface image information to the judgment unit; The judging unit judges the road condition ahead of the vehicle according to the received road image information, and sends smooth road condition information or bumpy road condition information to the control unit according to the judgment result; The control unit adjusts the stiffness of each suspension mechanism connected between the powertrain and the frame of the vehicle according to the received smooth road condition information or the bumpy road condition information.

10. The control method of the vehicle powertrain suspension system according to claim 9, characterized in that: The method for the control unit to adjust the stiffness of each suspension mechanism connected between the powertrain and the frame of the vehicle according to the received smooth road condition information or the bumpy road condition information includes: The controller of the control unit controls the inflation and deflation mechanism of the control unit to adjust the air pressure in the airbag of each suspension mechanism according to the received smooth road condition information or the bumpy road condition information, so as to adjust the stiffness of each suspension mechanism.

Images