Suspension arrangement system and vehicle

Abstract

The utility model discloses a suspension arrangement system and a vehicle, and belongs to the technical field of automobile part design and manufacture, the suspension arrangement system comprises two engine suspensions and two transmission suspensions, an auxiliary frame comprises two longitudinal beams and a plurality of cross beams arranged between the two longitudinal beams, an engine is suspended at the joint of the middle cross beam in the plurality of cross beams and the longitudinal beam; the two engine suspensions are symmetrical relative to the mass center of the power assembly in the Y direction of the vehicle, and the two transmission suspensions are symmetrical relative to the mass center of the power assembly in the Y direction of the vehicle. The system forms an I-shaped structure, the connecting strength and rigidity of a suspension mounting position are improved, the stability is high, and vibration transmission is effectively reduced; lateral inclination and vertical coupling vibration can be improved, so that the lateral inclination and vertical coupling vibration can be counteracted mutually; and structural roars of dynamic total roll and pitching motion can be weakened, so that the noise, vibration and sound vibration roughness performance of the vehicle is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of automobile component design and manufacturing, in particular to a suspension arrangement system and a vehicle. Background Art

[0002] Longitudinal vehicle suspension can be categorized as the engine mount, which supports the powertrain's engine, and the transmission mount, which supports the transmission or transfer case. Longitudinal powertrain layouts typically consider the elastic center theory, primarily aiming to isolate torsional and translational motions, thereby achieving better decoupling performance for the suspension system.

[0003] The suspension arrangement system in the prior art does not significantly improve the coupled vibration in the roll and bounce directions, and produces a relatively loud structural roar. Utility Model Content

[0004] The utility model aims to at least solve the technical problems in the prior art that the suspension arrangement system has no obvious improvement on the coupled vibration in the roll and bounce directions and has a relatively large structural roar.

[0005] To this end, one object of the present invention is to provide a suspension arrangement system, comprising two engine mounts and two transmission mounts, wherein the engine mounts are mounted above a subframe, the transmission mounts are connected to the vehicle body via brackets, and the transmission mounts are located behind the engine mounts;

[0006] The subframe includes two longitudinal beams and a plurality of cross beams arranged between the two longitudinal beams, and the engine is mounted at the connection between a middle cross beam among the plurality of cross beams and the longitudinal beams;

[0007] The two engine mounts are symmetrical relative to the center of mass of the powertrain along the vehicle Y direction, and the two transmission mounts are symmetrical relative to the center of mass of the powertrain along the vehicle Y direction, wherein the powertrain includes an engine and a transmission.

[0008] Furthermore, the lines connecting the elastic center points of the two engine mounts and the elastic center points of the two transmission mounts form a trapezoidal area.

[0009] Furthermore, the center of mass of the powertrain is located at the projection center of the trapezoidal area along the Z direction of the vehicle.

[0010] Furthermore, the engine mount is arranged tilted, and the inclination angle of the engine mount relative to the vehicle Z direction is 15°-20°.

[0011] Furthermore, the bracket includes two supporting parts symmetrically arranged along the Y direction of the vehicle, the supporting part includes a horizontal connecting part and an inclined connecting part, the inclined connecting part is located on the laterally outer side of the horizontal connecting part, and the transmission suspension includes a first inner core, a second inner core and a rubber body, the first inner core and the second inner core are respectively connected to the rubber body, the first inner core is connected to the horizontal connecting part, and the second inner core is connected to the inclined connecting part.

[0012] Furthermore, the inclination angle of the inclined connection portion relative to the Z direction of the vehicle is 15°-20°.

[0013] Furthermore, the first inner core is installed above the rubber body, and the second inner core is installed below the rubber body. The first inner core, the rubber body and the horizontal connecting part are connected by a first fastener. A second fastener is provided on the side of the second inner core facing the inclined connecting part, and the second inner core is connected to the bracket through the second fastener.

[0014] Furthermore, the bracket is symmetrically provided with a suspension compartment for mounting the transmission mount, the suspension compartment is a groove-shaped structure, and the horizontal connecting portion and the inclined connecting portion are located at the bottom of the groove-shaped structure;

[0015] A first suspension mounting hole is formed on the horizontal connecting portion, the axis of which is parallel to the Z-direction of the vehicle; a fourth connecting hole is also formed on the first inner core, the axis of which is parallel to the Z-direction of the vehicle, and the fourth connecting hole, the first suspension mounting hole, and the transmission in the vehicle powertrain are integrally connected by fasteners;

[0016] A fifth connecting hole is provided on the inclined connecting portion, and the second inner core is connected to the fifth connecting hole via the second fastener.

[0017] Furthermore, a mounting bracket is provided at the connection between the middle cross beam and the longitudinal beam, and a mounting position for mounting the engine suspension is provided on the mounting bracket; and flanges connected to the vehicle body are provided on both sides of the bracket.

[0018] The utility model provides a vehicle, characterized by comprising any one of the above suspension arrangement systems.

[0019] The suspension arrangement system and vehicle of the utility model have the following beneficial effects:

[0020] The utility model discloses a suspension arrangement system, in which a mounting bracket is arranged at the overlap of the middle cross beam and the left longitudinal beam and the right longitudinal beam to form an "I"-shaped structure, which improves the connection strength and rigidity of the suspension installation position, has high stability, and effectively reduces vibration transmission; the utility model can improve the roll and bounce coupling vibrations, so that the roll and bounce coupling vibrations cancel each other out; it can also weaken the structural roar of the total dynamic roll and pitch motion, thereby improving the noise, vibration and acoustic roughness performance; the elastic center points of the two engine mounts and the elastic center points of the two transmission mounts are connected to form a trapezoidal area, and the center of mass of the powertrain is located at the projection center of the trapezoidal area along the vehicle Z direction. Such a structural design can strengthen the support for the powertrain, and utilize its stable and non-deformable characteristics to effectively suppress the displacement and rotation of the center of mass of the powertrain and reduce vibration transmission; the four-point suspension arrangement of the two engine mounts and the two transmission mounts can provide a reaction force to the output torque of the powertrain, with a better torsional limiting effect and better powertrain stability. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments recorded in the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0022] Figure 1 It is a structural schematic diagram of a suspension arrangement system in an embodiment of the present utility model;

[0023] Figure 2 This is a schematic diagram of the assembly of a subframe and engine mount of a suspension arrangement system in an embodiment of the present utility model;

[0024] Figure 3 This is a schematic diagram of a subframe and mounting bracket of a suspension arrangement system in an embodiment of the present utility model. Figure 1 ;

[0025] Figure 4 This is a schematic diagram of a subframe and mounting bracket of a suspension arrangement system in an embodiment of the present utility model. Figure 2 ;

[0026] Figure 5 This is a schematic diagram of an engine mount arrangement system in an embodiment of the utility model. Figure 1 ;

[0027] Figure 6 This is a schematic diagram of an engine mount arrangement system in an embodiment of the utility model. Figure 2 ;

[0028] Figure 7 It is a schematic diagram of a bracket and a transmission mount of a suspension arrangement system in an embodiment of the present utility model;

[0029] Figure 8 This is a schematic diagram of a bracket of a suspension arrangement system in an embodiment of the present utility model. Figure 1 ;

[0030] Figure 9 This is a schematic diagram of a bracket of a suspension arrangement system in an embodiment of the present utility model. Figure 2 ;

[0031] Figure 10 It is a schematic diagram of a transmission suspension of a suspension arrangement system in an embodiment of the present utility model;

[0032] Figure 11 It is a schematic diagram of a transmission suspension of a suspension arrangement system in an embodiment of the present utility model;

[0033] Figure 12 It is a structural diagram of a suspension arrangement system in an embodiment of the present utility model.

[0034] Reference numerals:

[0035] 100. Subframe; 101. Left longitudinal beam; 102. Right longitudinal beam; 103. Middle cross beam; 200. Mounting bracket; 201. Second suspension mounting hole; 202. First connecting hole; 203. First body connection; 300. Engine suspension; 301. Third fastener; 302. Locating pin; 303. Limiting member; 304. Second connecting hole; 400. Bracket; 401. Suspension compartment; 402. Second body connection; 403. Third connecting hole; 404. First suspension mounting hole; 500. Transmission suspension; 501. First inner core; 502. Second inner core; 503. Second fastener; 504. Fourth connecting hole. DETAILED DESCRIPTION

[0036] Various aspects and features of the present invention are described herein with reference to the accompanying drawings.

[0037] It should be understood that various modifications may be made to the embodiments disclosed herein. Therefore, the above description should not be considered as limiting, but merely as an example of an embodiment. Other modifications within the scope and spirit of the present invention will occur to those skilled in the art.

[0038] The accompanying drawings, which are incorporated in and constitute a part of the specification, illustrate embodiments of the present invention and, together with the general description of the present invention given above and the detailed description of the embodiments given below, serve to explain the principles of the present invention.

[0039] These and other characteristics of the invention will become apparent from the following description of a preferred form of embodiment given as a non-limiting example with reference to the accompanying drawings.

[0040] It should also be understood that although the present invention has been described with reference to certain specific examples, those skilled in the art will be able to surely realize many other equivalent forms of the present invention, which have the characteristics described in the claims and are therefore within the scope of protection defined thereby.

[0041] The above and other aspects, features and advantages of the present invention will become more apparent from the following detailed description when taken in conjunction with the accompanying drawings.

[0042] Specific embodiments of the present invention will be described hereinafter with reference to the accompanying drawings; however, it should be understood that the claimed embodiments are merely examples of the present invention, which may be implemented in a variety of ways. Well-known and / or repetitive functions and structures are not described in detail to avoid obscuring the present invention with unnecessary or redundant detail. Therefore, the specific structural and functional details claimed herein are not intended to be limiting, but rather serve merely as a basis and representative basis for the claims to teach those skilled in the art to variously employ the present invention with substantially any suitable detailed structure.

[0043] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like to indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation to the present invention.

[0044] In the description of the present invention, "first feature" and "second feature" may include one or more such features.

[0045] In the description of the present invention, “plurality” means two or more.

[0046] In the description of the present invention, a first feature being “above” or “below” a second feature may include that the first and second features are in direct contact, or may include that the first and second features are not in direct contact but are in contact via another feature therebetween.

[0047] In the description of the present invention, a first feature “above”, “above” and “above” a second feature includes the first feature being directly above and obliquely above the second feature, or simply means that the first feature is horizontally higher than the second feature.

[0048] In the description of the present invention, reference to terms such as "one embodiment," "some embodiments," "illustrative embodiments," "examples," "specific examples," or "some examples" means that the specific features, structures, materials, or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the exemplary expressions of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

[0049] Although the embodiments of the present invention have been shown and described, those skilled in the art will appreciate that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and purpose of the present invention, and that the scope of the present invention is defined by the claims and their equivalents.

[0050] It is important to note that:

[0051] The vehicle Y direction in the present invention refers to the width direction of the vehicle, that is, the left and right direction of the vehicle.

[0052] The vehicle X direction in the present invention refers to the length direction of the vehicle, that is, the front and rear direction of the vehicle.

[0053] The vehicle Z direction in the present invention refers to the height direction of the vehicle, that is, the up-down direction of the vehicle.

[0054] The roll direction in the present invention refers to the lateral inclination in the suspension system, that is, the component of the suspension mass adaptive vibration around the vehicle's X-axis angle.

[0055] The bounce direction in the present invention refers to the vertical direction in the suspension system, that is, the displacement component of the suspension mass adaptive vibration in the Z-axis direction of the vehicle.

[0056] Example 1

[0057] like Figures 1-11 As shown, this embodiment provides a suspension arrangement system, including an engine mount 300 mounted on a subframe 100 and a transmission mount 500 connected to a vehicle powertrain; the transmission mount 500 is located behind the engine mount 300, where the rear refers to the X-axis direction of the vehicle, i.e., the front-rear direction of the vehicle;

[0058] like Figure 2 、 Figure 3and Figure 4 As shown, the subframe 100 includes a left longitudinal beam 101 and a right longitudinal beam 102 arranged along the vehicle Y direction, and an intermediate cross beam 103 arranged along the vehicle X direction. The ends of the intermediate cross beam 103 are respectively connected to the left longitudinal beam 101 and the right longitudinal beam 102 via mounting brackets 200. The engine mount 300 is mounted on the mounting bracket 200, and the upper portion of the engine mount 300 is connected to the vehicle powertrain.

[0059] The mounting bracket 200 is arranged at the connection between the middle cross beam 103 and the left longitudinal beam 101 and the right longitudinal beam 102 to form an "I"-shaped structure, thereby improving the connection strength and rigidity of the suspension mounting position, increasing stability, and effectively reducing vibration transmission.

[0060] Specifically, there are two engine mounts 300 and two transmission mounts 500 . The two engine mounts 300 are symmetrical with respect to the center of mass of the powertrain along the Y direction of the vehicle, and the two transmission mounts 500 are symmetrical with respect to the center of mass of the powertrain along the Y direction of the vehicle.

[0061] The included angle between the axis of the engine mount 300 and the vehicle's Z-axis is in the range of 15-20°, which can improve the roll and bounce coupling vibrations and cancel each other out; it can also weaken the structural roar of the dynamic total roll and pitch motion, thereby improving the NVH performance of the vehicle.

[0062] The present invention provides a suspension arrangement system, wherein the mounting bracket 200 is arranged at the joint of the middle cross beam 103 and the left longitudinal beam 101 and the right longitudinal beam 102, forming an "I"-shaped structure, thereby improving the connection strength and rigidity of the suspension mounting position, achieving high stability, and effectively reducing vibration transmission; the present invention can improve the roll and bounce coupling vibrations, thereby canceling out the roll and bounce coupling vibrations; and can also weaken the structural roar of the dynamic total roll and pitch motion, thereby improving the NVH performance of the vehicle; Figure 12 As shown, the lines connecting the elastic center points of the two engine mounts 300 and the elastic center points of the two transmission mounts 500 form a trapezoidal area, and the center of mass of the powertrain is located at the projection center of the trapezoidal area along the Z direction of the vehicle, which can strengthen the support for the powertrain and utilize its stable and non-deformable characteristics to effectively suppress the displacement and rotation of the center of mass of the powertrain and reduce vibration transmission; the four-point suspension arrangement of the two engine mounts 300 and the two transmission mounts 500 can provide a reaction force to the output torque of the powertrain, with a better anti-torsion limiting effect and better powertrain stability.

[0063] Example 2

[0064] like Figures 1-11As shown, this embodiment provides a suspension arrangement system, including an engine mount 300 mounted on a subframe 100 and a transmission mount 500 connected to a vehicle powertrain; the transmission mount 500 is located behind the engine mount 300, where the rear refers to the X-axis direction of the vehicle, i.e., the front-rear direction of the vehicle;

[0065] The subframe 100 includes a left longitudinal beam 101 and a right longitudinal beam 102 arranged along the vehicle Y direction, and an intermediate cross beam 103 arranged along the vehicle X direction. The ends of the intermediate cross beam 103 are respectively connected to the left longitudinal beam 101 and the right longitudinal beam 102 via mounting brackets 200. The engine mount 300 is mounted on the mounting bracket 200. The upper portion of the engine mount 300 is connected to the vehicle powertrain.

[0066] The mounting bracket 200 is arranged at the joint between the middle cross beam 103 and the left longitudinal beam 101 and the right longitudinal beam 102, forming an "I"-shaped structure, which improves the connection strength and rigidity of the suspension mounting position, has high stability, and effectively reduces vibration transmission.

[0067] Specifically, there are two engine mounts 300 and two transmission mounts 500 . The two engine mounts 300 are symmetrical with respect to the center of mass of the powertrain along the Y direction of the vehicle, and the two transmission mounts 500 are symmetrical with respect to the center of mass of the powertrain along the Y direction of the vehicle.

[0068] The included angle between the axis of the engine mount 300 and the vehicle's Z-axis is in the range of 15-20°, which can improve the roll and bounce coupling vibrations and cancel each other out; it can also weaken the structural roar of the dynamic total roll and pitch motion, thereby improving the NVH performance of the vehicle.

[0069] The present invention provides a suspension arrangement system, wherein the mounting bracket 200 is arranged at the joint of the middle cross beam 103 and the left longitudinal beam 101 and the right longitudinal beam 102, forming an "I"-shaped structure, thereby improving the connection strength and rigidity of the suspension mounting position, achieving high stability, and effectively reducing vibration transmission; the present invention can improve the roll and bounce coupling vibrations, thereby canceling out the roll and bounce coupling vibrations; and can also weaken the structural roar of the dynamic total roll and pitch motion, thereby improving the NVH performance of the vehicle; Figure 12As shown, the lines connecting the elastic center points of the two engine mounts 300 and the elastic center points of the two transmission mounts 500 form a trapezoidal area, and the center of mass of the powertrain is located at the projection center of the trapezoidal area along the Z direction of the vehicle, which can strengthen the support for the powertrain and utilize its stable and non-deformable characteristics to effectively suppress the displacement and rotation of the center of mass of the powertrain and reduce vibration transmission; the four-point suspension arrangement of the two engine mounts 300 and the two transmission mounts 500 can provide a reaction force to the output torque of the powertrain, with a better anti-torsion limiting effect and better powertrain stability.

[0070] This embodiment differs from the first embodiment in that:

[0071] The present invention further includes a bracket 400 arranged along the Y direction of the vehicle. Specifically, the transmission mount 500 is connected to the vehicle body through the bracket 400.

[0072] The bracket 400 is symmetrically provided with a suspension compartment 401 for mounting the transmission mount 500;

[0073] The bracket 400 includes two supporting parts symmetrically arranged along the vehicle Y direction, and the supporting parts include a horizontal connecting part and an inclined connecting part. The inclined connecting part is located on the lateral outside of the horizontal connecting part (ie, on the outside of the vehicle Y direction).

[0074] The angle between the inclined connection part and the horizontal connection part is an obtuse angle, the inclination angle of the inclined connection part relative to the Z-axis of the vehicle is 15°-20°, and the angle range between the axis of the connection between the inclined connection part and the transmission suspension 500 and the Z-axis of the vehicle is 15-20°, which can improve the coupled vibration in the roll and bounce directions and make the coupled vibration in the roll and bounce directions offset each other; it can also weaken the structural roar of the total dynamic roll and pitch motion, thereby improving the NVH performance of the vehicle.

[0075] Example 3

[0076] like Figures 1-11 As shown, this embodiment provides a suspension arrangement system, including an engine mount 300 mounted on a subframe 100 and a transmission mount 500 connected to a vehicle powertrain; the transmission mount 500 is located behind the engine mount 300, where the rear refers to the X-axis direction of the vehicle, i.e., the front-rear direction of the vehicle;

[0077] The subframe 100 includes a left longitudinal beam 101, a right longitudinal beam 102, and a middle cross beam 103 arranged along the Y direction of the vehicle. The ends of the middle cross beam 103 are respectively connected to the left longitudinal beam 101 and the right longitudinal beam 102 via mounting brackets 200. The engine mount 300 is mounted on the mounting bracket 200. The upper portion of the engine mount 300 is connected to the vehicle powertrain.

[0078] The mounting bracket 200 is arranged at the joint between the middle cross beam 103 and the left longitudinal beam 101 and the right longitudinal beam 102, forming an "I"-shaped structure, which improves the connection strength and rigidity of the suspension mounting position, has high stability, and effectively reduces vibration transmission.

[0079] Specifically, there are two engine mounts 300 and two transmission mounts 500 . The two engine mounts 300 are symmetrical with respect to the center of mass of the powertrain along the Y direction of the vehicle, and the two transmission mounts 500 are symmetrical with respect to the center of mass of the powertrain along the Y direction of the vehicle.

[0080] The included angle between the axis of the engine mount 300 and the vehicle's Z-axis is in the range of 15-20°, which can improve the roll and bounce coupling vibrations and cancel each other out; it can also weaken the structural roar of the dynamic total roll and pitch motion, thereby improving the NVH performance of the vehicle.

[0081] The present invention provides a suspension arrangement system, wherein the mounting bracket 200 is arranged at the joint of the middle cross beam 103 and the left longitudinal beam 101 and the right longitudinal beam 102, forming an "I"-shaped structure, thereby improving the connection strength and rigidity of the suspension mounting position, achieving high stability, and effectively reducing vibration transmission; the present invention can improve the roll and bounce coupling vibrations, thereby canceling out the roll and bounce coupling vibrations; and can also weaken the structural roar of the dynamic total roll and pitch motion, thereby improving the NVH performance of the vehicle; Figure 12 As shown, the lines connecting the elastic center points of the two engine mounts 300 and the elastic center points of the two transmission mounts 500 form a trapezoidal area, and the center of mass of the powertrain is located at the projection center of the trapezoidal area along the Z direction of the vehicle, which can strengthen the support for the powertrain and utilize its stable and non-deformable characteristics to effectively suppress the displacement and rotation of the center of mass of the powertrain and reduce vibration transmission; the four-point suspension arrangement of the two engine mounts 300 and the two transmission mounts 500 can provide a reaction force to the output torque of the powertrain, with a better anti-torsion limiting effect and better powertrain stability.

[0082] This embodiment differs from the above embodiments in that:

[0083] like Figure 7 、 Figure 8 and Figure 9 As shown, the bracket 400 is a symmetrical structure along the Y axis of the vehicle.

[0084] The suspension compartment 401 is a trough-shaped structure, with the horizontal connecting portion and the inclined connecting portion located at the bottom of the trough-shaped structure. Specifically, the horizontal connecting portion of the bracket 400 is provided with a first suspension mounting hole 404, the axis of which is parallel to the vehicle's Z-direction. The transmission mount 500 is also provided with a fourth connecting hole 504, the axis of which is parallel to the vehicle's Z-direction. More specifically, the fourth connecting hole 504 is a countersunk structure. The first suspension mounting hole 404, the fourth connecting hole 504, and the transmission in the vehicle's powertrain are connected as a whole via fasteners such as bolts.

[0085] Specifically, a positioning pin 302 is provided on one side of the fourth connection hole 504 to achieve position limiting between the transmission mount 500 and the vehicle powertrain.

[0086] A third connection hole 403 is formed on the inclined connection portion, and the axis of the third connection hole 403 has an inclination angle of 15°-20° relative to the Z direction of the vehicle;

[0087] like Figure 10 and Figure 11 As shown, the transmission mount 500 is provided with a second fastener 503 installed in the third connection hole 403. The axis of the second fastener 503 is inclined at an angle of 15°-20° relative to the vehicle's Z-direction. A nut is screwed into the end of the second fastener 503 to connect the transmission mount 500 and the bracket 400. This structural design can improve the roll and bounce coupled vibrations, allowing the roll and bounce coupled vibrations to offset each other. It can also weaken the structural roar caused by the total dynamic roll and pitch motions, thereby improving the vehicle's NVH performance.

[0088] Specifically, the transmission mount 500 includes a rubber body, which can reduce vehicle vibration.

[0089] The transmission mount 500 includes a first inner core 501 disposed above a rubber body and a second inner core 502 disposed below the rubber body. The fourth connection hole 504 is located on the first inner core 501 , and the second fastener 503 is located on the second inner core 502 . Positioning pins 302 are provided on the first and second inner cores 501 and 502 .

[0090] The first inner core 501 is connected to the horizontal connecting part, and the second inner core 502 is connected to the inclined connecting part; specifically, the angle between the first inner core 501 and the second inner core 502 is an obtuse angle, and its size is the same as the angle between the horizontal connecting part and the inclined connecting part.

[0091] The bracket 400 is provided with flanges on both sides for connecting to the vehicle body, and the plane where the flanges are located is higher than the plane where the first suspension mounting hole 404 and the third connection hole 403 are located;

[0092] The flange is provided with a plurality of connection holes, and the connection holes are connected to the vehicle body as a whole by bolts, thereby realizing the supporting function of the transmission suspension 500.

[0093] Example 4

[0094] like Figures 1-11 As shown, this embodiment provides a suspension arrangement system, including an engine mount 300 mounted on a subframe 100 and a transmission mount 500 connected to a vehicle powertrain; the transmission mount 500 is located behind the engine mount 300, where the rear refers to the X-axis direction of the vehicle, i.e., the front-rear direction of the vehicle;

[0095] The subframe 100 includes a left longitudinal beam 101 and a right longitudinal beam 102 arranged along the vehicle Y direction, and an intermediate cross beam 103 arranged along the vehicle X direction. The ends of the intermediate cross beam 103 are respectively connected to the left longitudinal beam 101 and the right longitudinal beam 102 via mounting brackets 200. The engine mount 300 is mounted on the mounting bracket 200. The upper portion of the engine mount 300 is connected to the vehicle powertrain.

[0096] The mounting bracket 200 is arranged at the joint between the middle cross beam 103 and the left longitudinal beam 101 and the right longitudinal beam 102, forming an "I"-shaped structure, which improves the connection strength and rigidity of the suspension mounting position, has high stability, and effectively reduces vibration transmission.

[0097] Specifically, there are two engine mounts 300 and two transmission mounts 500 . The two engine mounts 300 are symmetrical with respect to the center of mass of the powertrain along the Y direction of the vehicle, and the two transmission mounts 500 are symmetrical with respect to the center of mass of the powertrain along the Y direction of the vehicle.

[0098] The included angle between the axis of the engine mount 300 and the vehicle's Z-axis is in the range of 15-20°, which can improve the roll and bounce coupling vibrations and cancel each other out; it can also weaken the structural roar caused by the dynamic total roll and pitch motion, thereby improving the vehicle's noise, vibration and harshness (NVH) performance.

[0099] The present invention provides a suspension arrangement system, wherein the mounting bracket 200 is arranged at the joint of the middle cross beam 103 and the left longitudinal beam 101 and the right longitudinal beam 102, forming an "I"-shaped structure, thereby improving the connection strength and rigidity of the suspension mounting position, achieving high stability, and effectively reducing vibration transmission; the present invention can improve the roll and bounce coupling vibrations, thereby canceling out the roll and bounce coupling vibrations; and can also weaken the structural roar of the dynamic total roll and pitch motion, thereby improving the NVH performance of the vehicle; Figure 12 As shown, the lines connecting the elastic center points of the two engine mounts 300 and the elastic center points of the two transmission mounts 500 form a trapezoidal area, and the center of mass of the powertrain is located at the projection center of the trapezoidal area along the Z direction of the vehicle, which can strengthen the support for the powertrain and utilize its stable and non-deformable characteristics to effectively suppress the displacement and rotation of the center of mass of the powertrain and reduce vibration transmission; the four-point suspension arrangement of the two engine mounts 300 and the two transmission mounts 500 can provide a reaction force to the output torque of the powertrain, with a better anti-torsion limiting effect and better powertrain stability.

[0100] This embodiment differs from the above embodiments in that:

[0101] Specifically, the line connecting the elastic center points of the two engine mounts 300 and the elastic center points of the two transmission mounts 500 forms a trapezoidal area.

[0102] The center of mass of the powertrain is located at the projection center of the trapezoidal area along the vehicle Z direction, which can strengthen the support for the powertrain and utilize its stability and non-deformation properties to effectively suppress the displacement and rotation of the center of mass of the powertrain and reduce vibration transmission.

[0103] The mounting bracket 200 is provided with a second mounting hole 201 for accommodating the engine mount 300;

[0104] The mounting bracket 200 is further provided with a first connection hole 202, and the engine mount 300 is provided with a second connection hole 304, and the second connection hole 304 is connected to the first connection hole 202 via a fastener;

[0105] Specifically, the engine mount 300 is provided with a limiting member 303 installed inside the first connection hole 201 , so that the connection between the mounting bracket 200 and the engine mount 300 is more stable.

[0106] like Figure 5 and Figure 6As shown, a third fastener 301 is provided on the upper portion of the engine mount 300 , and the engine mount 300 is connected to the vehicle powertrain via the third fastener 301 ;

[0107] Specifically, a locating pin 302 is further provided on the side of the third fastener 301 , and the locating pin 302 is used to limit the position of the engine mount 300 and the vehicle powertrain.

[0108] The included angle between the axis of the third fastener 301 of the engine mount 300 and the vehicle's Z-axis is in the range of 15-20°, which can improve the roll and bounce coupling vibrations and make the roll and bounce coupling vibrations offset each other; it can also weaken the structural roar caused by the dynamic total roll and pitch motion, thereby improving the vehicle's NVH performance.

[0109] Example 5

[0110] like Figures 1-11 As shown, this embodiment provides a suspension arrangement system, including an engine mount 300 mounted on a subframe 100 and a transmission mount 500 connected to a vehicle powertrain; the transmission mount 500 is located behind the engine mount 300, where the rear refers to the X-axis direction of the vehicle, i.e., the front-rear direction of the vehicle;

[0111] The subframe 100 includes a left longitudinal beam 101, a right longitudinal beam 102, and a middle cross beam 103 arranged along the Y direction of the vehicle. The ends of the middle cross beam 103 are respectively connected to the left longitudinal beam 101 and the right longitudinal beam 102 via mounting brackets 200. The engine mount 300 is mounted on the mounting bracket 200. The upper portion of the engine mount 300 is connected to the vehicle powertrain.

[0112] The mounting bracket 200 is arranged at the joint between the middle cross beam 103 and the left longitudinal beam 101 and the right longitudinal beam 102, forming an "I"-shaped structure, which improves the connection strength and rigidity of the suspension mounting position, has high stability, and effectively reduces vibration transmission.

[0113] Specifically, there are two engine mounts 300 and two transmission mounts 500 . The two engine mounts 300 are symmetrical with respect to the center of mass of the powertrain along the Y direction of the vehicle, and the two transmission mounts 500 are symmetrical with respect to the center of mass of the powertrain along the Y direction of the vehicle.

[0114] The included angle between the axis of the engine mount 300 and the vehicle's Z-axis is in the range of 15-20°, which can improve the roll and bounce coupling vibrations and cancel each other out; it can also weaken the structural roar of the dynamic total roll and pitch motion, thereby improving the NVH performance of the vehicle.

[0115] The present invention provides a suspension arrangement system, wherein the mounting bracket 200 is arranged at the joint of the middle cross beam 103 and the left longitudinal beam 101 and the right longitudinal beam 102, forming an "I"-shaped structure, thereby improving the connection strength and rigidity of the suspension mounting position, achieving high stability, and effectively reducing vibration transmission; the present invention can improve the roll and bounce coupling vibrations, thereby canceling out the roll and bounce coupling vibrations; and can also weaken the structural roar of the dynamic total roll and pitch motion, thereby improving the NVH performance of the vehicle; Figure 12 As shown, the lines connecting the elastic center points of the two engine mounts 300 and the elastic center points of the two transmission mounts 500 form a trapezoidal area, and the center of mass of the powertrain is located at the projection center of the trapezoidal area along the Z direction of the vehicle, which can strengthen the support for the powertrain and utilize its stable and non-deformable characteristics to effectively suppress the displacement and rotation of the center of mass of the powertrain and reduce vibration transmission; the four-point suspension arrangement of the two engine mounts 300 and the two transmission mounts 500 can provide a reaction force to the output torque of the powertrain, with a better anti-torsion limiting effect and better powertrain stability.

[0116] This embodiment differs from the above embodiments in that:

[0117] The subframe 100 is a frame-shaped structure, and the front and rear sides of the frame-shaped structure are provided with first body connection parts 104 for connecting with the vehicle body;

[0118] The bracket 400 is provided with second body connection parts 402 on both sides thereof for connection with the body.

[0119] The included angle between the axis of the second fastener 503 of the transmission mount 500 and the Z-axis of the vehicle is in the range of 15-20°, which can improve the coupled vibrations in the roll and bounce directions and make the coupled vibrations in the roll and bounce directions cancel each other out; it can also weaken the structural roar of the dynamic total roll and pitch motion, thereby improving the NVH performance of the vehicle.

[0120] Example 6

[0121] This embodiment provides a vehicle, comprising the suspension arrangement system described in any of the above embodiments.

Claims

1. A suspension arrangement system, characterized in that: It includes two engine mounts and two transmission mounts, wherein the engine mounts are mounted above the subframe, the transmission mounts are connected to the vehicle body via brackets, and the transmission mounts are located behind the engine mounts; The subframe includes two longitudinal beams and a plurality of cross beams arranged between the two longitudinal beams, and the engine is mounted at the connection between a middle cross beam among the plurality of cross beams and the longitudinal beams; The two engine mounts are symmetrical relative to the center of mass of the powertrain along the vehicle Y direction, and the two transmission mounts are symmetrical relative to the center of mass of the powertrain along the vehicle Y direction, wherein the powertrain includes an engine and a transmission.

2. The suspension arrangement system according to claim 1, characterized in that A line connecting the elastic center points of the two engine mounts and the elastic center points of the two transmission mounts forms a trapezoidal area.

3. The suspension arrangement system according to claim 2, characterized in that The center of mass of the powertrain is located at the projection center of the trapezoidal area along the Z direction of the vehicle.

4. The suspension arrangement system according to claim 1, characterized in that The engine mount is arranged tilted, and the inclination angle of the engine mount relative to the vehicle Z direction is 15°-20°.

5. The suspension arrangement system according to claim 1, wherein: The bracket includes two supporting parts symmetrically arranged along the Y direction of the vehicle, and the supporting parts include a horizontal connecting part and an inclined connecting part. The inclined connecting part is located laterally outside the horizontal connecting part. The transmission suspension includes a first inner core, a second inner core and a rubber body. The first inner core and the second inner core are respectively connected to the rubber body. The first inner core is connected to the horizontal connecting part, and the second inner core is connected to the inclined connecting part.

6. The suspension arrangement system according to claim 5, characterized in that The inclination angle of the inclined connection portion relative to the Z direction of the vehicle is 15°-20°.

7. The suspension arrangement system according to claim 5, characterized in that The first inner core is installed above the rubber body, and the second inner core is installed below the rubber body. The first inner core, the rubber body and the horizontal connecting part are connected by a first fastener. A second fastener is provided on the side of the second inner core facing the inclined connecting part, and the second inner core is connected to the bracket through the second fastener.

8. The suspension arrangement system according to claim 7, characterized in that The bracket is symmetrically provided with suspension compartments for mounting the transmission mount, the suspension compartments being a groove-shaped structure, the horizontal connecting portion and the inclined connecting portion being located at the bottom of the groove-shaped structure; A first suspension mounting hole is formed on the horizontal connecting portion, the axis of which is parallel to the Z direction of the vehicle; a fourth connecting hole is also formed on the first inner core, the axis of which is parallel to the Z direction of the vehicle, and the fourth connecting hole, the first suspension mounting hole, and the transmission in the powertrain are connected as a whole via fasteners; A fifth connecting hole is provided on the inclined connecting portion, and the second inner core is connected to the fifth connecting hole via the second fastener.

9. The suspension arrangement system according to claim 1, characterized in that A mounting bracket is provided at the connection between the middle cross beam and the longitudinal beam, and a second suspension mounting hole for mounting the engine mount is provided on the mounting bracket; flanges for connecting to the vehicle body are provided on both sides of the bracket.

10. A vehicle, characterized in that: A suspension arrangement system comprising the suspension arrangement system according to any one of claims 1 to 9.

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