CN115352236A - Electric vehicle suspension and electric automobile - Google Patents
Electric vehicle suspension and electric automobile Download PDFInfo
- Publication number
- CN115352236A CN115352236A CN202211153056.1A CN202211153056A CN115352236A CN 115352236 A CN115352236 A CN 115352236A CN 202211153056 A CN202211153056 A CN 202211153056A CN 115352236 A CN115352236 A CN 115352236A
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- 239000000725 suspension Substances 0.000 title claims abstract description 81
- 230000009467 reduction Effects 0.000 abstract description 2
- 238000013461 design Methods 0.000 description 9
- 238000010586 diagram Methods 0.000 description 6
- 238000013016 damping Methods 0.000 description 5
- 230000001133 acceleration Effects 0.000 description 4
- 230000005540 biological transmission Effects 0.000 description 4
- 230000000694 effects Effects 0.000 description 4
- 230000005284 excitation Effects 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- 230000005484 gravity Effects 0.000 description 3
- 238000002485 combustion reaction Methods 0.000 description 2
- 238000001914 filtration Methods 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 238000010521 absorption reaction Methods 0.000 description 1
- 238000013459 approach Methods 0.000 description 1
- 230000000712 assembly Effects 0.000 description 1
- 238000000429 assembly Methods 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 230000002542 deteriorative effect Effects 0.000 description 1
- 210000001145 finger joint Anatomy 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 239000013585 weight reducing agent Substances 0.000 description 1
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60G—VEHICLE SUSPENSION ARRANGEMENTS
- B60G13/00—Resilient suspensions characterised by arrangement, location or type of vibration dampers
- B60G13/001—Arrangements for attachment of dampers
- B60G13/003—Arrangements for attachment of dampers characterised by the mounting on the vehicle body or chassis of the damper unit
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60G—VEHICLE SUSPENSION ARRANGEMENTS
- B60G13/00—Resilient suspensions characterised by arrangement, location or type of vibration dampers
- B60G13/001—Arrangements for attachment of dampers
- B60G13/005—Arrangements for attachment of dampers characterised by the mounting on the axle or suspension arm of the damper unit
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60G—VEHICLE SUSPENSION ARRANGEMENTS
- B60G15/00—Resilient suspensions characterised by arrangement, location or type of combined spring and vibration damper, e.g. telescopic type
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Vehicle Body Suspensions (AREA)
- Arrangement Or Mounting Of Propulsion Units For Vehicles (AREA)
Abstract
The invention discloses an electric vehicle suspension and an electric automobile. The electric vehicle suspension includes: the wheel hub motor is arranged on the inner side of the wheel rim; a first spring and damper assembly, one end of the first spring and damper assembly being mechanically connected to the in-wheel motor; the other end of the first spring and damper assembly is connected with the vehicle body; the tuned mass dampers of the batteries are positioned on two sides of the vehicle body and above the wheels; one end of the battery tuned mass damper is mechanically connected with the unsprung portion of the vehicle, and the other end of the battery tuned mass damper is connected with the vehicle body. The suspension structure provided by the embodiment can inhibit vibration of the unsprung structure, reduce vibration amplitude of the unsprung structure, reduce the influence caused by reduction of vehicle bumping and increase of unsprung mass of the vehicle, improve vertical dynamic performance, driving comfort and road operability of the vehicle, and reduce dynamic load of vehicle tires.
Description
Technical Field
The invention relates to the technical field of automobiles, in particular to an electric vehicle suspension and an electric vehicle.
Background
Compared with the traditional internal combustion engine automobile, the new energy automobile is more environment-friendly and energy-saving, so that people pay attention to the new energy automobile. Compared with the traditional internal combustion engine vehicle, the new energy vehicle has the advantages that the power source of the new energy vehicle is changed into the motor from the gasoline engine. The hub motor has the advantages of compact structure, high power transmission efficiency, vehicle chassis space saving and vehicle weight reduction, and therefore, the hub motor is concerned in electric vehicles.
However, since the in-wheel motor is disposed in the wheel, unsprung mass of the vehicle increases, which affects the operating state of the suspension of the vehicle, and the vibration filtering effect of the suspension is not rational, thereby deteriorating the driving comfort and road handling performance of the vehicle.
Disclosure of Invention
The invention provides an electric vehicle suspension and an electric automobile, and aims to solve the problem that the increase of unsprung mass of a vehicle affects the driving comfort and road operability of the vehicle.
According to an aspect of the present invention, there is provided an electric vehicle suspension comprising:
the hub motor is arranged on the inner side of the rim;
a first spring and damper assembly, one end of the first spring and damper assembly being mechanically connected to the in-wheel motor; the other end of the first spring and damper assembly is connected with the vehicle body;
the tuned mass dampers of the batteries take the batteries as mass blocks, and are positioned on two sides of the vehicle body and above the wheels; one end of the battery tuned mass damper is mechanically connected with the unsprung portion of the vehicle, and the other end of the battery tuned mass damper is connected with the vehicle body.
Optionally, the battery tuned mass damper comprises a battery mass and a second spring and damper assembly;
wherein one end of the second spring and damper assembly is mechanically connected to the vehicle unsprung portion and the other end of the second spring and damper assembly is mechanically connected to the battery mass portion.
Optionally, the first spring and damper assembly comprises a first spring and a first damper in parallel; the second spring and damper assembly includes a second damper of a second spring in parallel.
Optionally, the battery mass is located on both sides of the vehicle body longitudinal axis.
Optionally, the battery mass section includes a battery structure and a tuned mass damper shaft, the battery structure being mechanically coupled to the second spring and damper assembly, and the tuned mass damper shaft being coupled between the battery structure and the vehicle body.
Optionally, the other end of the second spring and damper assembly is pivotally connected to the battery structure.
Optionally, the unsprung portion includes: the suspension upper arm, the suspension knuckle and the suspension lower arm are connected in sequence;
wherein the suspension knuckle is mechanically connected with the hub motor, and the battery tuned mass damper is mechanically connected with the suspension lower arm.
Optionally, one end of the first spring and damper assembly is mechanically connected to the lower suspension arm; the other end of the first spring and damper assembly is mechanically coupled to the chassis pivot.
Optionally, the vehicle body is a chassis.
According to another aspect of the present invention, there is provided an electric vehicle including: the vehicle body and the electric vehicle suspension described in any of the above embodiments.
According to the technical scheme of the embodiment of the invention, the suspension structure formed by connecting the in-wheel motor 110, the first spring and damper assembly 120 and the battery tuned mass damper 150 can effectively filter vibration generated when a vehicle runs. The tuned mass damper 150 of the battery generates an inertial force in a direction opposite to the vibration direction of the unsprung mass structure when the unsprung mass structure of the vehicle vibrates, and applies the reverse inertial force to the unsprung mass structure to suppress the vibration of the unsprung mass structure, reduce the vibration amplitude of the unsprung mass structure, and reduce the vehicle bump. The first-order estimation result shows that the root mean square value of the vertical acceleration of the vehicle body of the suspension structure of the embodiment is reduced by 20%, the root mean square value of the pitching acceleration of the gravity center point of the vehicle body is reduced by 40%, and the dynamic load of the tire is reduced by 4.5% under the excitation of a random road surface. Therefore, the embodiment can reduce the influence of the increase of the unsprung mass of the vehicle, improve the vertical dynamic performance, the riding comfort and the road operability of the vehicle, and reduce the dynamic load of the vehicle tire 130.
It should be understood that the statements in this section do not necessarily identify key or critical features of the embodiments of the present invention, nor do they necessarily limit the scope of the invention. Other features of the present invention will become apparent from the following description.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without creative efforts.
FIG. 1 is a schematic structural diagram of an electric vehicle suspension provided by an embodiment of the invention;
FIG. 2 is a schematic structural diagram of an outer portion of a suspension of an electric vehicle according to an embodiment of the present invention;
fig. 3 is a schematic structural diagram of another electric vehicle suspension provided by the embodiment of the invention.
Detailed Description
In order to make the technical solutions of the present invention better understood, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be obtained by a person skilled in the art without making any creative effort based on the embodiments in the present invention, shall fall within the protection scope of the present invention.
It should be noted that the terms "first," "second," and the like in the description and claims of the present invention and in the drawings described above are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It is to be understood that the data so used is interchangeable under appropriate circumstances such that the embodiments of the invention described herein are capable of operation in sequences other than those illustrated or described herein. Furthermore, the terms "comprises," "comprising," and "having," and any variations thereof, are intended to cover a non-exclusive inclusion, such that a process, method, system, article, or apparatus that comprises a list of steps or elements is not necessarily limited to those steps or elements expressly listed, but may include other steps or elements not expressly listed or inherent to such process, method, article, or apparatus.
Fig. 1 is a schematic structural diagram of an electric vehicle suspension provided in an embodiment of the present invention. The electric vehicle suspension comprises:
the hub motor 110, the hub motor 110 is arranged on the inner side of the rim 130;
a first spring and damper assembly 120, one end of the first spring and damper assembly 120 being mechanically connected to the in-wheel motor 110; the other end of the first spring and damper assembly 120 is mechanically connected to the vehicle body 140;
at least two tuned mass dampers 150 for the battery, the tuned mass dampers 150 for the battery being located at both sides of the vehicle body 140 and above the wheels; one end of tuned mass damper 150 is mechanically coupled to the unsprung portion of the vehicle and the other end of tuned mass damper 150 is coupled to the cabin portion of the vehicle.
Specifically, the automobile damper is a device for reducing mechanical vibration and consuming kinetic energy by using damping characteristics, and can quickly attenuate vibration of a frame and an automobile body and improve the smoothness and comfort of automobile driving. It should be noted that the vehicle suspension in this embodiment includes a first spring and damper assembly 120 and a tuned mass damper 150. First spring and damper assembly 120 and battery tuned mass damper 150 are mechanically coupled to in-wheel motor 110. Illustratively, the first spring and damper assembly 120, the battery tuned mass damper 150 may be mechanically coupled to the in-wheel motor 110 via suspension knuckles. The first spring and damper assembly 120 and the battery tuned mass damper 150 are used to dampen vibrations caused by road excitation while the vehicle is traveling, dispersing the vibrations through the vehicle body 140 to the various first spring and damper assemblies 120 and battery tuned mass dampers 150 equipped on the vehicle. The hub motor 110 is disposed inside and connected to the rim 130, however, the placement of the motor within the hub results in an increase in the unsprung mass of the vehicle. In the prior art, the automobile industry adopts a design scheme of an in-wheel motor suspension for taking driving comfort and road maneuverability into consideration, but the in-wheel motor suspension transmits vehicle power through a flexible transmission structure, so that power loss exists in the vehicle power transmission process, and the transmission efficiency is low; and because the in-wheel motor suspension is formed by arranging a suspension structure in a wheel, the unsprung mass of the vehicle is further increased by the design. Since the ratio of sprung to unsprung masses of an automobile has a greater effect on the vibration of the automobile, the vibration of the automobile when passing through a bumpy road section is smaller when the ratio is larger. Thus, the increase in unsprung mass of an automobile can have a severe impact on the ride comfort and road handling of the vehicle.
The suspension structure of the in-wheel motor 110, the first spring and damper assembly 120 and the tuned mass damper 150 of the battery used in this embodiment can effectively filter the vibration generated during the running of the vehicle. The tuned mass damper 150 of the battery generates an inertial force in a direction opposite to the vibration direction of the unsprung mass structure when the unsprung mass structure of the vehicle vibrates, and applies the reverse inertial force to the unsprung mass structure to suppress the vibration of the unsprung mass structure, reduce the vibration amplitude of the unsprung mass structure, and reduce the vehicle bump. The first-order estimation result shows that the root mean square value of the vertical acceleration of the gravity center point of the vehicle body is reduced by 20%, the root mean square value of the pitch acceleration of the gravity center point of the vehicle body is reduced by 40% and the dynamic load of the tire is reduced by 4.5% under the excitation of a random road surface. Therefore, the embodiment can reduce the influence of the increase of unsprung mass of the vehicle, improve the vertical dynamic performance, the riding comfort and the road operability of the vehicle, and reduce the dynamic load of the vehicle tire 130.
Optionally, on the basis of the above embodiment, the battery tuned mass damper 150 comprises a battery mass part 160 and a second spring and damper assembly 170;
wherein one end of the second spring and damper assembly 170 is mechanically connected to the vehicle unsprung portion and the other end of the second spring and damper assembly 170 is mechanically connected to the battery mass portion 160.
Specifically, a tuned mass damper consists of a mass, a spring, and a damping system. When the tuned mass damper is connected with a main structure to be protected as a substructure, the tuned mass damper will approach the natural frequency or excitation frequency of the main structure as close as possible. When the main structure is excited to vibrate, the sub-structure will produce one inertial force in the direction opposite to the main structure vibration to act on the main structure to damp the main structure vibration reaction and thus to realize the vibration damping effect. Referring to fig. 1, the battery mass part 160 is formed of a battery structure, and the battery tuned mass damper 150 combines the battery mass part 160 with the second spring and damper assembly 170, and uses the battery mass part 160 as a mass of the battery tuned mass damper 150, so that it is not necessary to additionally provide a mass of the tuned mass damper, which is equivalent to subtracting the mass of the mass in the tuned mass damper. The battery mass 160 is disposed at the upper end of the second spring and damper assembly 170 and is connected thereto, and due to the design of the combination of the battery mass 160 and the tuned mass damper, the battery structure and the tuned mass damper are disposed together outside the vehicle cabin, such a design reduces the space occupied by the chassis and the combination of the two makes the vehicle design more modular. The arrangement reduces the weight of the vehicle body, enlarges the space of the vehicle chassis, and can ensure that the design of the vehicle is more flexible.
Optionally, the first spring and damper assembly 120 comprises a first spring and a first damper in parallel; the second spring and damper assembly 170 includes a second damper of the second spring in parallel.
Specifically, the first spring and the first damper in the first spring and damper assembly 120 are installed in parallel. The second spring and the second damper in the second spring and damper assembly 170 are installed in parallel. For example, the spring and the damper may be installed in parallel by sleeving the spring on the damper, or may be installed in parallel in other forms, which is not limited in this embodiment.
When the vehicle jolts, the wheels are impacted, the spring can convert kinetic energy during impact into deformation absorption, the spring can deform for many times after the kinetic energy is absorbed, and the damper is used for reducing the deformation times of the spring. In the compression stroke of the suspension, the damping force of the damper is small, and the elasticity of the spring can be fully utilized to relax the impact. In the suspension frame stretching stroke, the damping force of the damper is large, and vibration can be quickly reduced. The arrangement that the spring and the damper are installed in parallel can achieve a better vibration reduction effect. On the other hand, the spring and the damper are installed in parallel, so that the occupied space of the automobile suspension can be saved. It should be noted that the springs include a first spring in the first spring and damper assembly 120 and a second spring in the second spring and damper assembly 170, and the dampers include a first damper in the first spring and damper assembly 120 and a second damper in the second spring and damper assembly 170.
Alternatively, on the basis of the above embodiment, the battery mass parts 160 are located on both sides of the longitudinal axis of the vehicle body 140.
For example, with continued reference to fig. 1, the battery mass 160 may be disposed above the wheels of the vehicle. The battery mass part 160 may be disposed above all wheels of the vehicle, or may be disposed only above the front or rear wheels of the vehicle, which is not limited in this embodiment. The battery mass part 160 is arranged on the two sides of the vehicle body, the battery is moved to the outer side of the vehicle, namely, part of the battery is moved outwards, the design is convenient for combining the battery mass part 160 with the second spring and damper assembly 170, the weight of the battery is used as the mass part of the tuned mass damper, a mass block of the tuned mass damper does not need to be additionally arranged, the weight of the vehicle is reasonably configured, and the additional weight increase of the vehicle is avoided. Because the battery of electric automobile sets up on the chassis of vehicle, the design that part battery moved outward has enlarged vehicle chassis space, and because the combination of battery and harmonious mass damper has reduced vehicle weight.
Fig. 2 is a schematic structural diagram of an outer portion of a suspension of an electric vehicle according to an embodiment of the present invention. Referring to fig. 1 and 2, battery mass 160 includes a battery structure mechanically coupled to second spring and damper assembly 170, and a tuned mass damper shaft 220 coupled between body shell 210 and body 140.
Specifically, the second spring and damper assembly 170 is mechanically coupled between the battery structure and the unsprung structure and bears a majority of the weight of the battery structure. For example, the second spring and damper assembly 170 may be mounted vertically between the unsprung structure and the battery structure. The battery mass section 160 is connected to the vehicle body cover 210. It should be noted that the battery structure may have a separate housing structure, or the vehicle body housing 210 may be directly used as the battery housing, which is not limited in this embodiment. Tuned mass damper shaft 220 is used to connect body shell 210 to body 140. Most of the weight of the battery structure is carried by the second spring and damper assembly 170 and the remaining small portion of the weight is conducted through the vehicle body shell 210 connected to the battery mass 160 to the tuned mass damper shaft 220 and carried by the tuned mass damper shaft 220. The battery mass 160 is mechanically coupled to a second spring and damper assembly 170, which when coupled together form a battery tuned mass damper 150. On the other hand, battery tuned mass damper 150 is connected to body shell 210, and body shell 210 is connected to body 140 by tuned mass damper shaft 220. This arrangement also strengthens the connection between battery tuned mass damper 150 and vehicle body 140, and distributes the weight of the battery structure. Openings are formed in the lower end of one side of the vehicle body shell 210 close to the cab and the positions of the two sides of the vehicle body 140 close to the tires, a bearing structure is arranged in the opening of the vehicle body 140, and the tuned mass damper shaft 220 penetrates through the opening of the vehicle body 140 and the opening of the vehicle body shell 210. Tuned mass damper shaft 220 has one end inserted into a bearing structure in an opening in body 140 and the other end fixedly attached to body shell 210. Such an arrangement allows body shell 210 to be rotated open about tuned mass damper axis 220 through a small range of rotation, and the rotatable open configuration of body shell 210 is designed to facilitate installation and maintenance of the vehicle suspension structure.
Optionally, the other end of the second spring and damper assembly 170 is pivotally connected to the battery structure.
Fig. 3 is a schematic structural diagram of another electric vehicle suspension provided by the embodiment of the invention. Referring to fig. 3, the unsprung portion includes: an upper suspension arm 310, a finger joint 320 and a lower suspension arm 330 which are connected in sequence;
wherein suspension knuckle 320 is mechanically coupled to hub motor 110 and battery tuned mass damper 150 is mechanically coupled to suspension lower arm 330.
Specifically, vehicle body 140 is mechanically connected to suspension upper arm 310, suspension upper arm 310 is mechanically connected to suspension knuckle 320, and suspension lower arm 330 is mechanically connected to suspension knuckle 320. Battery tuned mass damper 150 is connected to suspension lower arm 330 and is connected to in-wheel motor 110 via suspension lower arm 330. Wheel hub motor 110 is connected to vehicle body 140 via suspension lower arm 330. Vibrations generated while the automobile is running are transmitted to tuned mass damper 150 and body 140 via lower suspension arm 330. The tuned mass damper 150 vibrates under the influence of the conducted vibration, and at this time, the tuned mass damper 150 generates an inertia force to react with the unsprung structure, so that the vibration amplitude of the unsprung structure is reduced, and the structural comfort of the vehicle body 140 is improved. On the other hand, the wheel outer suspension structure is simpler in structural arrangement relative to the in-wheel motor suspension structure, and parts required by the wheel outer suspension structure are fewer. Due to the arrangement, the mass of the unsprung structure is reduced, the number of automobile parts is reduced, the reliability of the automobile suspension is improved, and the automobile suspension is easy to realize. In another aspect, the suspension structure outside the wheel is arranged outside the wheel, so that the occupation of the space in the automobile hub is reduced, the space is provided for the installation of the hub motor, and the complexity of the suspension of the vehicle is also reduced.
Alternatively, with continued reference to fig. 3 on the basis of the above embodiment, one end of the first spring and damper assembly 120 is mechanically connected to the lower suspension arm 330; the other end of the first spring and damper assembly 120 is mechanically coupled to the chassis pivot.
Specifically, vibrations generated during vehicle operation are transmitted through the lower suspension arm 330 to the first spring and damper assembly 120, the first spring and damper assembly 120 assists the battery tuned mass damper 150 in filtering vibrations to further improve ride comfort, and the structural arrangement of the first spring and damper assembly 120 mechanically coupled between the lower suspension arm 330 and the chassis also strengthens the connection between the lower suspension arm 330 and the chassis.
Alternatively, on the basis of the above embodiment, vehicle body 140 is a chassis.
It should be noted that the suspension structures in the above embodiments are all mechanically connected to the chassis of the vehicle, which is an important part for supporting and mounting various parts of the vehicle. In an electric vehicle, the chassis also plays a role of loading a battery, and vibration generated during running of the vehicle is transmitted to the chassis. Therefore, it is important for the automobile to reduce the chassis vibration.
An embodiment of the present invention further provides an electric vehicle, including: vehicle body 140 and the electric vehicle suspension of any of the above embodiments. The vehicle suspension arrangement in the embodiment overcomes the influence of the non-yellow load increase of the vehicle on the vehicle, and provides a solution for the balance between the driving comfort and the road maneuverability of the vehicle. Such a suspension arrangement can dynamically decouple the sprung and unsprung masses of the vehicle and can control the battery tuned mass damper 150, the first spring and damper assembly 120 on the vehicle to vibrate independently. The vehicle dynamic performance can be further improved by taking the road maneuverability of the vehicle into consideration while taking the comfort of the sprung mass of the vehicle into consideration.
It should be understood that various forms of the flows shown above, reordering, adding or deleting steps, may be used. For example, the steps described in the present invention may be executed in parallel, sequentially, or in different orders, and are not limited herein as long as the desired result of the technical solution of the present invention can be achieved.
The above-described embodiments should not be construed as limiting the scope of the invention. It should be understood by those skilled in the art that various modifications, combinations, sub-combinations and substitutions may be made in accordance with design requirements and other factors. Any modification, equivalent replacement, and improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (10)
1. An electric vehicle suspension, comprising:
the hub motor is arranged on the inner side of the rim;
a first spring and damper assembly, one end of the first spring and damper assembly being mechanically connected to the in-wheel motor; the other end of the first spring and damper assembly is connected with the vehicle body;
the tuned mass dampers of the batteries take the batteries as mass blocks, and are positioned on two sides of the vehicle body and above the wheels; one end of the battery tuned mass damper is mechanically connected with the unsprung portion of the vehicle, and the other end of the battery tuned mass damper is connected with the vehicle body.
2. The electric vehicle suspension of claim 1, wherein the battery tuned mass damper includes a battery mass and a second spring and damper assembly;
wherein one end of the second spring and damper assembly is mechanically connected to the vehicle unsprung portion and the other end of the second spring and damper assembly is mechanically connected to the battery mass portion.
3. The electric vehicle suspension of claim 2, wherein the first spring and damper assembly comprises a first spring and a first damper in parallel; the second spring and damper assembly includes a second damper of the second spring in parallel.
4. The electric vehicle suspension of claim 2, wherein the battery mass is located on both sides of the longitudinal axis of the vehicle body.
5. The electric vehicle suspension of claim 2, wherein the battery mass section includes a battery structure and a tuned mass damper shaft, the battery structure is mechanically coupled with the second spring and damper assembly, and the tuned mass damper shaft is coupled between the battery structure and the vehicle body.
6. The electric vehicle suspension of claim 5, wherein the other end of the second spring and damper assembly is pivotally connected to the battery structure.
7. The electric vehicle suspension of claim 1, wherein the unsprung portion comprises: the suspension upper arm, the suspension knuckle and the suspension lower arm are connected in sequence;
wherein the suspension knuckle is mechanically connected with the hub motor, and the battery tuned mass damper is mechanically connected with the suspension lower arm.
8. The electric vehicle suspension of claim 7, wherein one end of the first spring and damper assembly is mechanically connected to the lower suspension arm; the other end of the first spring and damper assembly is mechanically coupled to the chassis pivot.
9. The electric vehicle suspension of claim 1, wherein the vehicle body is a chassis.
10. An electric vehicle, characterized by comprising: vehicle body and electric vehicle suspension according to any of claims 1-9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211153056.1A CN115352236A (en) | 2022-09-21 | 2022-09-21 | Electric vehicle suspension and electric automobile |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211153056.1A CN115352236A (en) | 2022-09-21 | 2022-09-21 | Electric vehicle suspension and electric automobile |
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| CN115352236A true CN115352236A (en) | 2022-11-18 |
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| CN202211153056.1A Pending CN115352236A (en) | 2022-09-21 | 2022-09-21 | Electric vehicle suspension and electric automobile |
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Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2005178438A (en) * | 2003-12-16 | 2005-07-07 | Toyota Motor Corp | Vehicle vibration attenuation device |
| WO2007142479A1 (en) * | 2006-06-07 | 2007-12-13 | Hae Jin Lee | Shock absorber apparatus for reducing weight and vibration of vehicle |
| WO2022055002A1 (en) * | 2020-09-14 | 2022-03-17 | 엘지전자 주식회사 | Robot |
-
2022
- 2022-09-21 CN CN202211153056.1A patent/CN115352236A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2005178438A (en) * | 2003-12-16 | 2005-07-07 | Toyota Motor Corp | Vehicle vibration attenuation device |
| WO2007142479A1 (en) * | 2006-06-07 | 2007-12-13 | Hae Jin Lee | Shock absorber apparatus for reducing weight and vibration of vehicle |
| CN101505981A (en) * | 2006-06-07 | 2009-08-12 | 李海珍 | Shock absorber apparatus for reducing weight and vibration of vehicle |
| WO2022055002A1 (en) * | 2020-09-14 | 2022-03-17 | 엘지전자 주식회사 | Robot |
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