CN110667361A - Suspension system for electric vehicle and electric vehicle with same - Google Patents
Suspension system for electric vehicle and electric vehicle with same Download PDFInfo
- Publication number
- CN110667361A CN110667361A CN201910882665.2A CN201910882665A CN110667361A CN 110667361 A CN110667361 A CN 110667361A CN 201910882665 A CN201910882665 A CN 201910882665A CN 110667361 A CN110667361 A CN 110667361A
- Authority
- CN
- China
- Prior art keywords
- suspension
- bushing
- suspension system
- power assembly
- sub
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
- B60K1/00—Arrangement or mounting of electrical propulsion units
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Transportation (AREA)
- Mechanical Engineering (AREA)
- Body Structure For Vehicles (AREA)
- Vehicle Body Suspensions (AREA)
Abstract
The invention discloses a suspension system for an electric vehicle and the electric vehicle with the same, wherein the suspension system comprises: power assembly, suspension, be provided with sub vehicle frame connecting bushing on the suspension, sub vehicle frame connecting bushing includes: go up bush and lower liner, go up the bush with the detachable laminating setting of lower liner, go up the bush with the lower liner all sets up in the suspension mounting hole of sub vehicle frame, the suspension mounting hole sets up this is internal for sub vehicle frame. Therefore, by adopting the suspension member, on one hand, the auxiliary frame connecting bushing which is constructed into a split structure enables the mounting of the suspension member on the auxiliary frame to be simpler and more convenient, so that the connection between the auxiliary frame and the power assembly is simpler and more convenient; on the other hand, the vibration reduction and energy dissipation effects of the auxiliary frame connecting bushing are better, the vibration reduction and torsion elimination effects of the suspension system can be improved, and the suspension system can meet the use requirements of electric vehicles.
Description
Technical Field
The invention relates to the technical field of vehicles, in particular to a suspension system for an electric vehicle and the electric vehicle with the same.
Background
In the related art, the suspension systems of the existing electric vehicles are mostly derived from the conventional vehicle suspension structures. Due to the lack of early design and later matching, the vibration isolation amount of the suspension in the driving process of the vehicle is low, and the riding comfort of people in the vehicle is reduced.
In addition, because the engine torque of the traditional vehicle has a certain climbing process, an idling working condition exists, the impact force on the suspension is small, more vibration isolation performance of the suspension is required, and the transient high-torque working condition characteristic of the electric vehicle causes great torsional impact on the suspension, so that the suspension can be broken, and potential safety hazards exist.
In addition, the electric vehicle has no idle speed, can output the maximum torque at the moment of starting, can cause great impact to the vehicle body under the working conditions of starting and braking, and is more severe in suspension stress. The arrangement form and the suspension structure of the suspension system directly using the transmission vehicle can not meet the use requirement of a pure electric vehicle.
Disclosure of Invention
The present invention is directed to solving at least one of the problems of the prior art. To this end, an object of the present invention is to propose a suspension system for an electric vehicle which can satisfy the use requirements of the electric vehicle.
The invention also provides an electric vehicle with the suspension system.
A suspension system for an electric vehicle according to an embodiment of a first aspect of the present invention includes: power assembly, suspension, be provided with sub vehicle frame connecting bushing on the suspension, sub vehicle frame connecting bushing includes: go up bush and lower liner, go up the bush with the detachable laminating setting of lower liner, go up the bush with the lower liner all sets up in the suspension mounting hole of sub vehicle frame, the suspension mounting hole sets up this is internal for sub vehicle frame.
According to the suspension system provided by the embodiment of the invention, by adopting the suspension part, on one hand, the auxiliary frame connecting bush constructed in a split structure enables the mounting of the suspension part on the auxiliary frame to be simpler and more convenient, so that the connection between the auxiliary frame and the power assembly is simpler and more convenient; on the other hand, the vibration reduction and energy dissipation effects of the auxiliary frame connecting bushing are better, the vibration reduction and torsion elimination effects of the suspension system can be improved, and the suspension system can meet the use requirements of electric vehicles.
According to some embodiments of the present invention, the subframe connection bushing has a first receiving space extending outward from an inner joint of the upper bushing and the lower bushing and penetrating through an outer sidewall of one side of the subframe connection bushing; a portion of the first receiving space is formed at the upper bushing, and another portion of the first receiving space is formed at the lower bushing.
According to some embodiments of the invention, the abutting surface of the upper bushing forms an upper accommodating space extending from the inside to the outer side wall and penetrating through the lower side wall, the abutting surface of the lower bushing forms a lower accommodating space extending from the inside to the side wall and penetrating through the upper side wall, and the upper accommodating space and the lower accommodating space define the first accommodating space.
In some embodiments, the subframe connection bushing further includes a second receiving space extending in an axial direction of the rear frame connection bushing and penetrating the subframe connection bushing, and the second receiving space is adapted to receive a link of the subframe connection bushing.
Further, the upper bushing and the lower bushing are fixedly connected with the connecting rod by a fastener passing through the second receiving space.
According to some embodiments of the invention, at least one of the upper bushing and the lower bushing has a threaded bore thereon for threadably engaging the fastener.
Further, a nut which is in threaded fit with the connecting rod is embedded in or welded and fixed on at least one of the upper bushing and the lower bushing.
In some embodiments, the suspension is configured as a rear suspension, the rear suspension further comprising: the power assembly connecting bush, the power assembly connecting bush with sub vehicle frame connecting bush passes through the connecting rod and connects, just sub vehicle frame connecting bush sets up in the suspension mounting hole of sub vehicle frame.
Further, the suspension system further comprises: front suspension, left suspension and right suspension, front suspension sets up power assembly's the place ahead and with front beam fixed connection, the back suspension sets up power assembly's rear and with electric vehicle's sub vehicle frame fixed connection, left side suspension sets up power assembly's left and with electric vehicle's left longeron fixed connection, right side suspension sets up power assembly's the right-hand right side and with electric vehicle's right longeron fixed connection.
In some embodiments, the left and right suspensions are each configured as an auxiliary anti-twist suspension; the support bushings of the left and right suspensions each include: outer tube and inner core, main spring sets up between the inner core and the outer tube, main spring includes: an upper vibration damping portion and a lower vibration damping portion opposed to and spaced apart from the inner core in the Z-direction, and a left vibration damping portion and a right vibration damping portion opposed to and spaced apart from the inner core in the X-direction; wherein the gap between the left vibration damping part and the inner core and the gap between the right vibration damping part and the inner core are both 1mm-3 mm; the gap between the lower vibration damping part and the inner core is 5-9 mm.
In some embodiments, the main spring further comprises: and one end of the connecting arm is connected with the inner core, and the other end of the connecting arm is connected with the outer pipe.
Further, the support bushing further comprises: the rigidity adjusting support is arranged on the inner wall of the outer pipe, and the rigidity adjusting support can be selectively arranged in the upper vibration damping part, the lower vibration damping part, the left vibration damping part and the right vibration damping part.
In some embodiments, the front suspension is connected to the front cross member and to the powertrain through the front suspension mounting bracket, the rear suspension is connected to the subframe and to the powertrain through the rear suspension mounting bracket, the left suspension is connected to the left side member and to the powertrain through the left suspension mounting bracket, and the right suspension is connected to the right side member and to the powertrain through the right suspension mounting bracket.
An electric vehicle according to an embodiment of a second aspect of the invention includes: the suspension system for an electric vehicle as described in the above embodiments.
Additional aspects and advantages of the invention will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the invention.
Drawings
The above and/or additional aspects and advantages of the present invention will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which:
FIG. 1 is a schematic view of a suspension system according to an embodiment of the invention;
FIG. 2 is a schematic illustration of the left suspension of the suspension system according to an embodiment of the present invention;
FIG. 3 is a schematic view of a right suspension of the suspension system according to an embodiment of the present invention;
FIG. 4 is a schematic view of a left suspension mounting bracket of the suspension system according to an embodiment of the present invention;
FIG. 5 is a schematic view of a right suspension mounting bracket of the suspension system according to an embodiment of the present invention;
FIG. 6 is a schematic view of a front suspension of the suspension system according to an embodiment of the present invention;
FIG. 7 is a schematic view of a front suspension mounting bracket of the suspension system according to an embodiment of the present invention;
FIG. 8 is a schematic view of a rear suspension and a rear suspension mounting bracket of the suspension system according to an embodiment of the present invention;
FIG. 9 is a schematic view of a rear suspension mounting bracket of the suspension system according to an embodiment of the present invention;
FIG. 10 is a broken away schematic view of the rear suspension of the suspension system according to an embodiment of the present invention;
FIG. 11 is a schematic view of bushings for the left and rear suspensions of the suspension system according to an embodiment of the present invention;
FIG. 12 is a schematic view of the bushings of the left and right suspensions of the suspension system in cooperation with the stiffness adjustment bracket according to an embodiment of the present invention;
FIG. 13 is a schematic illustration of stiffness adjustment brackets of the left and right suspensions of the suspension system according to an embodiment of the present invention;
fig. 14 is a schematic diagram of the trailing arms and connecting arms of the left and right suspensions of the suspension system according to an embodiment of the present invention.
Reference numerals:
the suspension system 100 is shown in a schematic view,
front suspension mounting bracket 40, rear suspension mounting bracket 50, left suspension mounting bracket 60, right suspension mounting bracket 70.
Detailed Description
Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the accompanying drawings are illustrative only for the purpose of explaining the present invention, and are not to be construed as limiting the present invention.
A suspension system 100 for an electric vehicle according to an embodiment of the present invention is described below with reference to fig. 1 to 14.
As shown in fig. 1, a suspension system 100 for an electric vehicle according to an embodiment of the first aspect of the present invention includes: power assembly, suspension are provided with sub vehicle frame connecting bushing 22 on the suspension, and sub vehicle frame connecting bushing 22 includes: the upper bushing 221 and the lower bushing 222 are detachably attached to each other, the upper bushing 221 and the lower bushing 222 are both arranged in a suspension mounting hole of the subframe, and the suspension mounting hole is formed in the body of the subframe.
Specifically, the suspension is disposed between the powertrain and the subframe to absorb vibration and torque transmitted from the subframe toward the powertrain during vehicle running, so that the subframe connection bushing 22 of the suspension is constructed in a split structure, and the upper bushing 221 and the lower bushing 222 are respectively mounted into the suspension mounting holes of the subframe.
In addition, the upper bushing 221 and the lower bushing 222 are respectively press-fitted into the suspension mounting holes, so that the size of the hole in the side wall of the subframe body can be made smaller, and the matching effect of the subframe connection bushing 22 and the subframe can be improved, so that the vibration reduction and energy dissipation effects of the subframe connection bushing 22 can be improved.
According to the suspension system 100 of the embodiment of the invention, with the above suspension members, on one hand, the subframe connection bushing 22 constructed in a split structure makes the mounting of the suspension member on the subframe simpler and more convenient, so that the connection of the subframe and the power assembly is simpler and more convenient; on the other hand, the vibration damping and energy dissipation effects of the subframe connection bushing 22 are better, and the vibration damping and torque reducing effects of the suspension system 100 can be improved, so that the suspension system 100 meets the use requirements of the electric vehicle.
It can be understood that, the suspension mounting hole sets up at the sub vehicle frame originally internally, on the one hand, makes the position of suspension mounting hole more reasonable, and processing is convenient, and on the other hand when sub vehicle frame connection bush 22 is installed in the suspension mounting hole, based on the reasonable setting of suspension mounting hole, makes sub vehicle frame connection bush 22's radial atress and axial atress all more even to can improve sub vehicle frame connection bush 22's job stabilization nature and damping, the effect of turning round that disappears.
In some embodiments, the subframe connection bushing 22 has a first receiving space extending outward from the inner joint of the upper bushing 221 and the lower bushing 222 and penetrating through an outer sidewall of one side of the subframe connection bushing 22, a portion of the first receiving space is formed in the upper bushing 221, and another portion of the first receiving space is formed in the lower bushing 222.
Specifically, the upper bushing 221 and the lower bushing 222 are disposed oppositely, and the upper bushing and the lower bushing 221 are respectively press-fitted onto the subframe, so that the powertrain is connected to the powertrain connection bushing 22 through another component (the connecting rod 21), and the powertrain connection bushing 22 is press-fitted to the subframe, thereby connecting the powertrain to the subframe.
Therefore, the upper bushing 221 and the lower bushing 222 are respectively pressed on the auxiliary frame, the auxiliary frame connecting bushing 22 is simple in structure and better in damping and torsion eliminating effects, and the power assembly and the auxiliary frame are simpler and more convenient to assemble.
In some embodiments, the abutting surface of the upper bushing 221 is formed with an upper receiving space extending from the inside to the sidewall and penetrating through the lower sidewall, the abutting surface of the lower bushing 222 is formed with a lower receiving space extending from the inside to the sidewall and penetrating through the upper sidewall, and the upper receiving space and the lower receiving space define a first receiving space.
An upper receiving space and a lower receiving space are respectively formed in the upper bushing 221 and the lower bushing 222, the upper receiving space extends outwards from the inside of the upper bushing to penetrate through the side wall and the lower side wall of the upper bushing, and the lower receiving space extends outwards from the inside of the lower bushing to penetrate through the side wall and the lower side wall of the lower bushing, so that a first receiving space is defined.
Therefore, the structure of the first accommodating space is more reasonable, one part of the first accommodating space is formed into the upper accommodating space, and the other part of the first accommodating space is formed into the lower accommodating space, so that the stress of the upper bushing 221 and the stress of the lower bushing 222 are both more reasonable, the stress of the upper bushing and the stress of the lower bushing are approximately the same, and the service life of the bushings can be effectively prolonged.
As shown in fig. 10, further, the subframe connection bushing 22 further includes: a second receiving space extending in the axial direction of the subframe connection bushing 22 and penetrating the subframe connection bushing 22, and adapted to receive the link 21 of the subframe connection bushing 22. In this way, the connecting rod 21 extending into the first receiving space can be fastened by the fastening member passing through the second receiving space, thereby improving the connection stability of the connecting rod 21 extending into the first receiving space and the sub frame connection bushing 22.
Specifically, the upper bushing 221 and the lower bushing 222 are connected with the link 21 by a fastener passing through the second receiving space.
It will be appreciated that the upper bushing 221 is disposed opposite the lower bushing 222 and defines a first receiving space therebetween, the general contour of which is slightly larger than the geometric dimension of the end of the connecting rod 21 facing the receiving space, so that the connecting rod 21 can be inserted into the first receiving space and fixed by a fastener passing through the second receiving space. This can further improve the effect of fixing the link 21 to the subframe.
Here, it should be noted that, in the connection process of the powertrain and the subframe, the upper bushing 221 and the lower bushing 222 may be first press-fitted onto the subframe, and then the connecting rod 21 is inserted into the first receiving space, and is fixedly connected to the upper bushing 221 and the lower bushing 222, so that the assembly between the powertrain and the subframe is simpler and more convenient, and meanwhile, the size of the via hole corresponding to the connecting rod 21 on the subframe may be made smaller, and the structural strength of the subframe may be effectively improved.
In some embodiments, at least one of the upper bushing 221 and the lower bushing 222 is provided with a threaded hole for threadedly engaging a fastener.
In other words, the upper bushing 221 is provided with an upper through hole for matching with the fastener, the lower bushing 222 is provided with a lower through hole for matching with the fastener, the upper through hole or/and the lower through hole are threaded holes, and the upper through hole and the lower through hole together define the second accommodating space.
Thus, the fastener can pass through the upper through hole, the connecting rod 21 and into the lower through hole in sequence. So that the fastening member can be screw-fastened to the upper through hole or/and the lower through hole configured as the screw hole to make the connection of the connecting rod 21 to the subframe connecting bushing 22 more firm and reliable.
It should be noted that the upper through hole or/and the lower through hole is a threaded hole, which means that: in some embodiments, the upper through-hole is configured as a threaded hole; in other embodiments, the lower through-hole is configured as a threaded hole; in further embodiments, the upper and lower through-holes are each configured as threaded holes.
Further, in a preferred embodiment, a nut engaged with the fastener is embedded or welded on at least one of the upper bushing 221 or the lower bushing 222. It will be appreciated that the nut is identical in effect to the threaded bore described above and will not be described in detail here.
As shown in fig. 8 and 10, the suspension is configured as a rear suspension 20, and the rear suspension 20 further includes: the powertrain connecting bushing 23, the powertrain connecting bushing 23 and the subframe connecting bushing 22 are connected by the connecting rod 21, and the subframe connecting bushing 22 is disposed in the suspension mounting hole of the subframe.
In other words, the powertrain connection bushing 23 is disposed at one end of the connecting rod 21 and adapted to be connected to a powertrain of an electric vehicle, the subframe connection bushing 22 is disposed therein with a first receiving space for receiving the other end of the connecting rod 21, and the subframe connection bushing 22 is fixedly connected to the other end of the connecting rod 21 by a fastener.
It is understood that the subframe structure to which the rear suspension 20 of the present embodiment is applied differs from the subframe structure of the related art in that the subframe to which the rear suspension 20 of the present embodiment is applied is fixedly connected to the subframe connection bushing 22 in one direction, and the link 21 is fixedly connected to the subframe connection bushing 22 in the other direction.
It should be noted that, according to some embodiments of the present invention, the subframe connecting bushing 22 is fixedly connected to one end of the connecting rod 21 by a fastener.
Specifically, the subframe connection bushing 22 is press-fitted into the subframe, and then one end of the connecting rod 21 is inserted into the subframe, and is fastened by a fastener passing through the subframe connection bushing 22 and the connecting rod 21 in this order. Like this, improve the structural strength of rear suspension 20, improve the fixed effect's of rear suspension 20 and sub vehicle frame prerequisite under, can carry on spacingly to connecting rod 21 through the fastener to improve the cooperation effect of connecting rod 21 and sub vehicle frame connecting bush 22.
According to the rear suspension 20 for the electric vehicle of the embodiment of the invention, the connecting rod 21 is connected with the subframe connecting bush 22 through the fastener, and the connecting rod 21 is detachably connected with the subframe connecting bush 22, so that the interference between the connecting rod 21 and the subframe can be avoided in the connection process of the subframe and the rear suspension 20, the matching performance of the rear suspension 20 and the subframe is better, and the assembly is simpler and more convenient; and the structural strength of the rear suspension 20 can be improved, so that the rear suspension 20 meets the use requirement.
In other words, the powertrain connection bushing 23 is provided at one end of the connecting rod 21 and adapted to be connected with a powertrain of an electric vehicle; a subframe connection bushing 22 is detachably provided at the other end of the link 21 and adapted to be connected to a subframe of the electric vehicle.
Further, the rear suspension 20 is constructed in a split structure, and a powertrain connection bushing 23 adapted to be connected to the powertrain and a subframe connection bushing 22 adapted to be connected to the subframe are fixedly connected by a link 21, and the link 21 is detachably connected to the subframe connection bushing 22.
Thus, during the connection of the rear suspension 20 to the subframe, the subframe connection bushing 22 may be fixed to the subframe, and the link 21 may be mounted to the subframe connection bushing 22.
Therefore, the connecting rod 21 and the auxiliary frame connecting bush 22 are detachably connected, so that the connecting rod 21 and the auxiliary frame can be prevented from interfering in the connection process of the auxiliary frame and the rear suspension 20, the matching performance of the rear suspension 20 and the auxiliary frame is better, and the assembly is simpler and more convenient; but also the use requirements of the rear suspension 20.
It will be appreciated that the rear suspension 20 of the present embodiment is also applicable to a conventional subframe, and the rear suspension 20 of the present embodiment can be selectively disassembled and assembled, so that the rear suspension 20 can be assembled and then assembled to the subframe or the subframe connecting bushing 22 can be assembled to the subframe and then the connecting rod 21 can be assembled to the subframe according to different subframe installation requirements.
Further, as shown in fig. 1, the suspension system 100 further includes: a front suspension 10, a left suspension 30a and a right suspension 30 b.
The front suspension 10 is disposed in front of the power assembly and fixedly connected to the front cross member (see fig. 6), the rear suspension 20 is disposed behind the power assembly and fixedly connected to a subframe of the electric vehicle, the left suspension 30a is disposed on the left of the power assembly and fixedly connected to a left side member of the electric vehicle, and the right suspension 30b is disposed on the right of the power assembly and fixedly connected to a right side member of the electric vehicle.
In which the front suspension 10 and the rear suspension 20 are oppositely disposed in the front-rear direction, and the left suspension 30a and the right suspension 30b are oppositely disposed in the left-right direction, so that the powertrain is fixed to the vehicle body in a four-point fixing manner, and the sub-frame connecting bushing 22, which connects the powertrain to the sub-frame, is constructed in a split structure of the upper bushing 221 and the lower bushing 222, so that the upper bushing 221 and the lower bushing 222 can be respectively fitted to the sub-frame.
The upper bushing 221 and the lower bushing 222 are arranged oppositely, the upper bushing 221 and the lower bushing 222 are respectively pressed on the subframe, and a component connected with the subframe connection bushing 22 extends into the first accommodating space, so that the component which needs vibration isolation and energy dissipation through the subframe connection bushing 22 is mounted on the subframe (namely, at least part of the power assembly is fixed on the subframe through the rear suspension 20).
Therefore, on one hand, the front suspension 10, the rear suspension 20, the left suspension 30a and the right suspension 30b respectively fix the power assembly in the front, the rear and the left and right directions of the power assembly, so that the fixing effect of the power assembly of the electric vehicle on the vehicle body can be improved; on the other hand, the subframe connecting bushing 22 for connecting the subframe and the powertrain is constructed in a split structure, so that not only can interference between the subframe and the rear suspension 20 be avoided in the connection process of the subframe and the rear suspension 20, but also the rear suspension 20 and the subframe are better in matching performance and simpler and more convenient to assemble; and the structural strength of the rear suspension 20 can be improved, so that the rear suspension 20 meets the use requirement.
Further, it is understood that the embodiment of the present invention configures the front suspension 10 and the rear suspension 20 as auxiliary support suspensions, the left suspension 30a and the right suspension 30b as auxiliary anti-twist suspensions, and the auxiliary anti-twist suspensions are adapted to support the power assembly, and the auxiliary anti-twist power assembly, and the auxiliary support suspensions are adapted to the anti-twist power assembly, and the auxiliary support suspensions are adapted to support the power assembly.
It should be noted that the left suspension 30a and the right suspension 30b in this embodiment have a certain anti-twisting effect in addition to the original supporting effect, and the front suspension 10 and the rear suspension 20 have a certain supporting effect in addition to the original anti-twisting effect.
The suspension system 100 for an electric vehicle according to the embodiment of the present invention configures the left and right suspensions 30a and 30b as auxiliary anti-twist suspensions, and the front and rear suspensions 10 and 20 as auxiliary support suspensions. In this way, the left suspension 30a and the right suspension 30b share the torsional impact, so that the front suspension 10 and the rear suspension 20 can be prevented from being subjected to an excessive torsional impact, the failure of the front suspension 10 or the rear suspension 20 can be avoided, and the working stability of the suspension system 100 can be improved.
As shown in fig. 2, 3, 11 and 12, in some embodiments, the left and right suspensions 30a and 30b are each configured as an auxiliary anti-twist suspension, and the support bushings 31 of the left and right suspensions 30a and 30b each include: an outer tube 311 and an inner core 312, a main spring 313, the main spring 313 being disposed between the inner core 312 and the outer tube 311, the main spring 313 including: upper and lower vibration absorption portions 3131 and 3132 opposite and spaced apart from the inner core 312 in the Z direction, and left and right vibration absorption portions 3133 and 3134 opposite and spaced apart from the inner core 312 in the X direction; wherein, the gap between the upper vibration damping portion 3131 and the inner core 312, the gap between the left vibration damping portion 3133 and the inner core 312, and the gap between the right vibration damping portion 3134 and the inner core 312 are all 1mm-3 mm; the gap between the lower vibration absorption portion 3132 and the inner core 312 is 6mm to 9 mm.
Specifically, the main spring 313 is installed between the outer tube 311 and the inner core 312 to perform vibration damping and energy dissipation by the main spring 313, and the clearances between the main spring 313 and the upper, lower, left, and right vibration damping portions 3131, 3132, 3133, 3134 and 3131 of the main spring 313 satisfy the above-mentioned usage range, so that the clearance between at least part of the main spring 313 and the inner core 312 is smaller than the clearance of the conventional support bush 31, and the support bush 31 of the present embodiment has higher torsion resistance.
According to the support bush 31 of the embodiment of the present invention, the clearances between the upper, lower, left, and right vibration damping portions 3131, 3132, 3133, 3134 and the main spring 313 are more reasonable, so that the support bush 31 has higher torsion resistance on the premise that the support bush 31 has sufficient energy dissipation effects, and the left, right, front, and rear suspensions 30a, 30b of the support bush 31 have certain torsion resistance, so that the torsion resistance of the suspension system 100 can be effectively improved by the left, right, front, and rear suspensions 30a, 30b, 10, and 20.
Preferably, the gap between the upper vibration absorption portion 3131 and the inner core 312 is 1mm to 2 mm; the gap between the lower vibration damping portion 3132 and the inner core 312 is 5mm to 7 mm; the gap between the right vibration damping portion 3134 and the inner core 312 is 2mm-3 mm. After a number of production experiments and simulation calculations, the inventors of the present application have found that the clearances between the upper, lower, left, and right damping portions 3131, 3132, 3133, 3134 and the main spring 313 satisfy the required standards, and that the torsional resistance is higher.
In the particular embodiment shown in fig. 11 and 12, main spring 313 further comprises: and a support arm 3135, one end of the support arm 3135 being connected to the inner core 312, and the other end of the support arm 3135 being connected to the outer tube 311.
Specifically, in one specific embodiment, the support arms 3135 are two, wherein one support arm 3135 is disposed between the left and lower damping portions 3133, 3132 and the other support arm 3135 is disposed between the right and lower damping portions 3134, 3132. As described above, the vibration damping and energy dissipation effects of the support sleeve 31 are improved, and the stability of connection between the main spring 313 and the inner core 312 and between the main spring 313 and the outer pipe 311 is further improved, thereby improving the structural strength of the support sleeve 31.
As shown in fig. 13, the support bush 31 further includes: the stiffness adjusting bracket 314, the stiffness adjusting bracket 314 is disposed on the inner wall of the outer tube 311, and the stiffness adjusting bracket 314 is disposed in each of the upper, lower, left, and right vibration damping portions 3131, 3132, 3133, and 3134. Thus, the stiffness of the support bush 31 can be adjusted by selectively providing the stiffness-adjusting bracket 314 in the upper, lower, left and right vibration-damping portions 3131, 3132, 3133 and 3134 according to the use requirements.
As shown in fig. 14, each of the left and right suspensions 30a and 30b further includes: the connecting arm 33 is connected with the inner core 312, one end of the supporting arm 32 is connected with the power assembly, and the other end of the supporting arm 32 is connected with the connecting arm 33. Accordingly, the powertrain is connected to the vehicle body by the bracket arm 32 connected to the inner core 312, so that the stability of the connection between the powertrain and the vehicle body can be effectively improved, and vibration isolation and torsion elimination can be effectively performed by the support bush 31 located in the powertrain connection portion at one end of the bracket arm 32.
In the particular embodiment shown in fig. 14, the connecting arm 33 is constructed as a hollow structure, at least part of which is provided with reinforcing ribs arranged in a staggered manner. In this way, the structural strength of the left suspension 30a or the right suspension 30b can be effectively improved to improve the structural strength of the suspension system 100.
As shown in fig. 12 and 14, a limiting protrusion 331 is formed on the connecting arm 33 in the circumferential direction, and a limiting groove 3121 is correspondingly formed on the inner core 312; the connecting arm 33 is axially provided with a second limit protrusion 332, and the inner core 312 is correspondingly formed with a second limit groove 3122. Like this, carry out axial spacing through spacing arch 331 and second spacing recess 3122 to the trailing arm 32, carry out ascending spacing circumferentially through the cooperation of second spacing arch 332 and second spacing recess 3122 to the trailing arm 32 to improve the stability of being connected of trailing arm 32 and inner core 312, reach and prevent that trailing arm 32 and inner core 312 from breaking away from the technological effect of complex.
As shown in fig. 4, 5, 7, 8, and 9, the suspension system 100 further includes: the front suspension 10 is connected with a front cross beam through the front suspension mounting bracket 40, the rear suspension 20 is connected with a sub-frame through the rear suspension mounting bracket 50, the left suspension 30a is connected with a left longitudinal beam through the left suspension mounting bracket 60, and the right suspension 30b is connected with a right longitudinal beam through the right suspension mounting bracket 70. In this way, the connection stability of the front suspension 10 and the front cross beam, the rear suspension 20 and the rear cross beam, the left suspension 30a and the left side member, and the right suspension 30b and the right side member can be improved, and the fixing stability of the suspension system 100 on the vehicle body can be further improved.
It will be appreciated that in some embodiments, the front suspension 10 is connected to the front cross member, the other end of the front suspension 10 is connected to the front suspension mounting bracket 40, and the front suspension mounting bracket 40 is connected to the powertrain; the rear suspension 20 is connected with the auxiliary frame, the other end of the rear suspension 20 is connected with a rear suspension mounting bracket 50, and the rear suspension mounting bracket 50 is connected with the power assembly; the left suspension 30a is connected with the left longitudinal beam, the other end of the left suspension 30a is connected with the left suspension mounting bracket 60, the left suspension mounting bracket 60 is connected with the power assembly, the right suspension 30b is connected with the right longitudinal beam, the other end of the right suspension 30b is connected with the right suspension mounting bracket 70, and the right suspension mounting bracket 70 is connected with the power assembly.
As shown in fig. 5-10, the left suspension mounting bracket 60, the right suspension mounting bracket 70, the front suspension mounting bracket 40 and the rear suspension mounting bracket 50 are provided with first lightening holes; the front suspension 10, the rear suspension 20, the left suspension 30a and the right suspension 30b are all provided with second lightening holes. Thus, the weight of the suspension system 100 can be effectively reduced, and the suspension system 100 can meet the requirement of light weight.
An electric vehicle according to an embodiment of a second aspect of the invention includes: the suspension system 100 for an electric vehicle as in the above embodiment.
According to the electric vehicle of the embodiment of the invention, the suspension system 100 for the electric vehicle has the technical effect consistent with that of the suspension system 100, and the details are not repeated herein.
In the description of the present invention, it is to be understood that the terms "central," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," "circumferential," and the like are used in the orientations and positional relationships indicated in the drawings for convenience in describing the invention and to simplify the description, and are not intended to indicate or imply that the referenced device or element must have a particular orientation, be constructed and operated in a particular orientation, and are not to be considered limiting of the invention.
In the description of the present invention, "a feature" or "a second feature" may include one or more of the features.
In the description of the present invention, "a plurality" means two or more.
In the description of the present invention, a feature "on" or "under" a second feature may include direct contact with the second feature, and may also include contact with the second feature not directly but through another feature therebetween.
In the description of the invention "over", "above" and "above" a feature in a second feature includes the feature being directly above and obliquely above the second feature, or simply indicating that the feature is at a higher level than the second feature.
In the description herein, references to the description of the term "one embodiment," "some embodiments," "an illustrative embodiment," "an example," "a specific example," or "some examples" or the like mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
While embodiments of the invention have been shown and described, it will be understood by those of ordinary skill in the art that: various changes, modifications, substitutions and alterations can be made to the embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the claims and their equivalents.
Claims (14)
1. A suspension system (100) for an electric vehicle, comprising:
a power assembly;
suspension, be provided with sub vehicle frame connecting bushing (22) on the suspension, sub vehicle frame connecting bushing (22) includes: the auxiliary frame comprises an upper bushing (221) and a lower bushing (222), wherein the upper bushing (221) and the lower bushing (222) are detachably attached to each other relatively, the upper bushing (221) and the lower bushing (222) are arranged in a suspension mounting hole of the auxiliary frame, and the suspension mounting hole is formed in the body of the auxiliary frame.
2. The suspension bushing (100) for an electric vehicle according to claim 1, wherein the sub-frame connection bushing (22) has a first receiving space extending outward from an inner junction of the upper bushing (221) and the lower bushing (222) and penetrating through an outer sidewall of one side of the sub-frame connection bushing (22); a part of the first receiving space is formed at the upper bushing (221), and another part of the first receiving space is formed at the lower bushing (222).
3. The suspension system (100) for electric vehicles according to claim 2, characterized in that: the binding face of going up bush (221) is formed with the last accommodation space that extends to the lateral wall and link up lower lateral wall from inside, the binding face of lower bush (222) is formed with the lower accommodation space that extends to the lateral wall and link up upper side wall from inside, go up accommodation space with lower accommodation space limits first accommodation space.
4. The suspension system (100) for electric vehicles according to claim 3, characterized in that: the sub-frame connection bushing (22) further includes: a second receiving space extending in an axial direction of the sub frame connection bushing (22) and penetrating the sub frame connection bushing (22), and adapted to receive a link (21) of the sub frame connection bushing (22).
5. The suspension system (100) for electric vehicles according to claim 4, characterized in that the upper bushing (221) and the lower bushing (222) are fixedly connected with the link (21) by a fastener passing through the second receiving space.
6. The suspension system (100) for electric vehicles according to claim 2, characterized in that at least one of the upper bushing (221) and the lower bushing (222) is provided with a threaded hole that threadedly mates with the fastener.
7. The suspension system (100) for electric vehicles according to claim 2, wherein a nut threadedly engaged with the link (21) is fitted or welded to at least one of the upper bushing (221) and the lower bushing (222).
8. The suspension system (100) for electric vehicles according to any one of claims 1-7, characterized in that the suspension is configured as a rear suspension (20), the rear suspension (20) further comprising: power assembly connects bush (23), power assembly connect bush (23) with sub vehicle frame connect bush (22) and pass through connecting rod (21) and connect, just sub vehicle frame connect bush (22) set up in the suspension mounting hole of sub vehicle frame.
9. The suspension system (100) for electric vehicles according to claim 8, characterized in that the suspension system (100) further comprises: front suspension (10), left suspension (30a) and right suspension (30b), front suspension (10) set up the place ahead of power assembly and with front beam fixed connection, back suspension (20) set up power assembly's rear and with sub vehicle frame fixed connection, left side suspension (30a) set up power assembly's left and with electric vehicle's left longeron fixed connection, right side suspension (30b) set up power assembly the right-hand and with electric vehicle's right longeron fixed connection.
10. The suspension system (100) for electric vehicles according to claim 9, characterized in that the left suspension (30a) and the right suspension (30b) are configured as auxiliary anti-twist suspensions;
the support bushes (31) of the left and right suspensions (30a, 30b) each comprise:
an outer tube (311) and an inner core (312);
a main spring (313), the main spring (313) disposed between the inner core (312) and the outer tube (311), the main spring (313) comprising: an upper vibration absorption portion (3131) and a lower vibration absorption portion (3132) opposite to and spaced apart from the inner core (312) in a Z direction, a left vibration absorption portion (3133) and a right vibration absorption portion (3134) opposite to and spaced apart from the inner core (312) in an X direction;
wherein a gap between the left vibration absorption portion (3133) and the inner core (312) and a gap between the right vibration absorption portion (3134) and the inner core (312) are both 1mm-3 mm; the gap between the lower vibration absorption part (3132) and the inner core (312) is 5mm-9 mm.
11. The suspension system (100) for electric vehicles according to claim 10, characterized in that the main spring (313) further comprises: the connecting arm (33), the one end of connecting arm (33) with inner core (312) are connected, the other end of connecting arm (33) with outer tube (311) are connected.
12. The suspension system (100) for electric vehicles according to claim 10, characterized in that the support bushing (31) further comprises: a stiffness-adjusting bracket (314), the stiffness-adjusting bracket (314) being disposed on an inner wall of the outer tube (311), and the stiffness-adjusting bracket (314) being selectively disposed within the upper damping portion (3131), the lower damping portion (3132), the left damping portion (3133), and the right damping portion (3134).
13. The suspension system (100) for electric vehicles according to claim 9, further comprising: front suspension installing support (40), back suspension installing support (50), left suspension installing support (60) and right suspension installing support (70), front suspension (10) with the front beam is connected, and passes through front suspension installing support (40) with the power assembly is connected, back suspension (20) with sub vehicle frame is connected, and passes through back suspension installing support (50) with the power assembly is connected, left side suspension (30a) with left side longeron is connected, and passes through left side suspension installing support (60) with the power assembly is connected, right side suspension (30b) with right side longeron is connected, and passes through right side suspension installing support (70) with the power assembly is connected.
14. An electric vehicle, characterized by comprising: the suspension system (100) for an electric vehicle of any of claims 1-13.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910882665.2A CN110667361A (en) | 2019-09-18 | 2019-09-18 | Suspension system for electric vehicle and electric vehicle with same |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910882665.2A CN110667361A (en) | 2019-09-18 | 2019-09-18 | Suspension system for electric vehicle and electric vehicle with same |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110667361A true CN110667361A (en) | 2020-01-10 |
Family
ID=69078102
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910882665.2A Pending CN110667361A (en) | 2019-09-18 | 2019-09-18 | Suspension system for electric vehicle and electric vehicle with same |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110667361A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113561747A (en) * | 2021-08-31 | 2021-10-29 | 岚图汽车科技有限公司 | Motor suspension system, positioning support structure and vehicle |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105946534A (en) * | 2016-06-30 | 2016-09-21 | 奇瑞商用车（安徽）有限公司 | Integrated electric vehicle suspension system |
| WO2017019584A1 (en) * | 2015-07-29 | 2017-02-02 | Fca Us Llc | Split bushing torque strut isolator assembly |
| CN207241399U (en) * | 2017-09-21 | 2018-04-17 | 比亚迪股份有限公司 | Power assembly of electric automobile suspension system arrangement and electric automobile |
| CN208021173U (en) * | 2018-03-30 | 2018-10-30 | 北京新能源汽车股份有限公司 | A kind of left suspension, suspension system and automobile |
| CN108773250A (en) * | 2018-06-08 | 2018-11-09 | 浙江零跑科技有限公司 | A kind of double bushing pull rod suspended structures of electric vehicle |
| CN209063876U (en) * | 2018-10-19 | 2019-07-05 | 重庆长安汽车股份有限公司 | A kind of rear suspension structure |
| CN209395565U (en) * | 2018-12-19 | 2019-09-17 | 海马新能源汽车有限公司 | A kind of electric car suspension system and electric car |
-
2019
- 2019-09-18 CN CN201910882665.2A patent/CN110667361A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2017019584A1 (en) * | 2015-07-29 | 2017-02-02 | Fca Us Llc | Split bushing torque strut isolator assembly |
| CN105946534A (en) * | 2016-06-30 | 2016-09-21 | 奇瑞商用车（安徽）有限公司 | Integrated electric vehicle suspension system |
| CN207241399U (en) * | 2017-09-21 | 2018-04-17 | 比亚迪股份有限公司 | Power assembly of electric automobile suspension system arrangement and electric automobile |
| CN208021173U (en) * | 2018-03-30 | 2018-10-30 | 北京新能源汽车股份有限公司 | A kind of left suspension, suspension system and automobile |
| CN108773250A (en) * | 2018-06-08 | 2018-11-09 | 浙江零跑科技有限公司 | A kind of double bushing pull rod suspended structures of electric vehicle |
| CN209063876U (en) * | 2018-10-19 | 2019-07-05 | 重庆长安汽车股份有限公司 | A kind of rear suspension structure |
| CN209395565U (en) * | 2018-12-19 | 2019-09-17 | 海马新能源汽车有限公司 | A kind of electric car suspension system and electric car |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113561747A (en) * | 2021-08-31 | 2021-10-29 | 岚图汽车科技有限公司 | Motor suspension system, positioning support structure and vehicle |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US7413050B2 (en) | Device and method for mounting and assembling power unit | |
| US20180172135A1 (en) | Low porosity solid electrolyte membrane and method for manufacturing the same | |
| US20070131469A1 (en) | Power train mounting apparatus of vehicle | |
| US9090159B2 (en) | Vibration dampened engine mounted radiator assembly | |
| CN210733804U (en) | Suspension system for electric vehicle and electric vehicle with same | |
| CN110667361A (en) | Suspension system for electric vehicle and electric vehicle with same | |
| JP4163666B2 (en) | Subframe for vehicle | |
| JP2007302084A (en) | Torque rod | |
| KR102397177B1 (en) | Transmission mount type of side assembling | |
| CN209888635U (en) | Anti-torsion pull rod and mounting structure thereof | |
| CN111845313B (en) | Torsion-resistant pull rod and mounting structure thereof | |
| KR20100056707A (en) | Mounting bush unit | |
| CN213007585U (en) | Anti-torsion pull rod and automobile comprising same | |
| KR100527784B1 (en) | engine mounting system for automotive vehicles | |
| KR20100056953A (en) | Dynamic damping apparatus | |
| CN110667360A (en) | Bushing, suspension and electric vehicle with same | |
| CN205059215U (en) | Vehicle engine left side suspension assembly | |
| KR102237071B1 (en) | Subframe bush | |
| KR100992815B1 (en) | Trailing arm mounting unit for vehicle | |
| CN217435500U (en) | Power assembly of vehicle and vehicle | |
| CN220517974U (en) | Suspension assembly and automobile with same | |
| CN218140952U (en) | Compressor bracket with vibration reduction structure | |
| CN210733805U (en) | Bushing, suspension and electric vehicle | |
| KR20110058465A (en) | Sub-frame for front suspension of automobile device for vehicle | |
| KR100868606B1 (en) | Subframe for mcpherson strut type suspension and vehicle comprising the same |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20200110 |
|
| RJ01 | Rejection of invention patent application after publication |