CN110588271B - Automobile, chassis and self-adaptive suspension system thereof - Google Patents
Automobile, chassis and self-adaptive suspension system thereof Download PDFInfo
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- CN110588271B CN110588271B CN201910926646.5A CN201910926646A CN110588271B CN 110588271 B CN110588271 B CN 110588271B CN 201910926646 A CN201910926646 A CN 201910926646A CN 110588271 B CN110588271 B CN 110588271B
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60G—VEHICLE SUSPENSION ARRANGEMENTS
- B60G17/00—Resilient suspensions having means for adjusting the spring or vibration-damper characteristics, for regulating the distance between a supporting surface and a sprung part of vehicle or for locking suspension during use to meet varying vehicular or surface conditions, e.g. due to speed or load
- B60G17/015—Resilient suspensions having means for adjusting the spring or vibration-damper characteristics, for regulating the distance between a supporting surface and a sprung part of vehicle or for locking suspension during use to meet varying vehicular or surface conditions, e.g. due to speed or load the regulating means comprising electric or electronic elements
- B60G17/0152—Resilient suspensions having means for adjusting the spring or vibration-damper characteristics, for regulating the distance between a supporting surface and a sprung part of vehicle or for locking suspension during use to meet varying vehicular or surface conditions, e.g. due to speed or load the regulating means comprising electric or electronic elements characterised by the action on a particular type of suspension unit
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60G—VEHICLE SUSPENSION ARRANGEMENTS
- B60G17/00—Resilient suspensions having means for adjusting the spring or vibration-damper characteristics, for regulating the distance between a supporting surface and a sprung part of vehicle or for locking suspension during use to meet varying vehicular or surface conditions, e.g. due to speed or load
- B60G17/015—Resilient suspensions having means for adjusting the spring or vibration-damper characteristics, for regulating the distance between a supporting surface and a sprung part of vehicle or for locking suspension during use to meet varying vehicular or surface conditions, e.g. due to speed or load the regulating means comprising electric or electronic elements
- B60G17/0152—Resilient suspensions having means for adjusting the spring or vibration-damper characteristics, for regulating the distance between a supporting surface and a sprung part of vehicle or for locking suspension during use to meet varying vehicular or surface conditions, e.g. due to speed or load the regulating means comprising electric or electronic elements characterised by the action on a particular type of suspension unit
- B60G17/0155—Resilient suspensions having means for adjusting the spring or vibration-damper characteristics, for regulating the distance between a supporting surface and a sprung part of vehicle or for locking suspension during use to meet varying vehicular or surface conditions, e.g. due to speed or load the regulating means comprising electric or electronic elements characterised by the action on a particular type of suspension unit pneumatic unit
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60G—VEHICLE SUSPENSION ARRANGEMENTS
- B60G17/00—Resilient suspensions having means for adjusting the spring or vibration-damper characteristics, for regulating the distance between a supporting surface and a sprung part of vehicle or for locking suspension during use to meet varying vehicular or surface conditions, e.g. due to speed or load
- B60G17/015—Resilient suspensions having means for adjusting the spring or vibration-damper characteristics, for regulating the distance between a supporting surface and a sprung part of vehicle or for locking suspension during use to meet varying vehicular or surface conditions, e.g. due to speed or load the regulating means comprising electric or electronic elements
- B60G17/019—Resilient suspensions having means for adjusting the spring or vibration-damper characteristics, for regulating the distance between a supporting surface and a sprung part of vehicle or for locking suspension during use to meet varying vehicular or surface conditions, e.g. due to speed or load the regulating means comprising electric or electronic elements characterised by the type of sensor or the arrangement thereof
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Vehicle Body Suspensions (AREA)
Abstract
The invention discloses a self-adaptive suspension system, which comprises a suspension body and a cantilever, wherein the cantilever is arranged above the suspension body and used for supporting an automobile car and adjusting the height of the automobile car according to the fluctuation of the height of a road surface; the automobile suspension system is characterized by further comprising a height position sensor for detecting the height fluctuation of the road surface and a driving part for driving the cantilever to do lifting motion, so that the driving part adjusts the lifting of the cantilever according to the detection result of the height position sensor to enable the automobile car to keep horizontal. The invention also discloses a chassis comprising the self-adaptive suspension system and an automobile comprising the chassis. The self-adaptive suspension system provided by the invention can adjust the height of the car relative to the suspension body, so that the car is in a horizontal state, and the driving comfort and safety are improved.
Description
Technical Field
The invention relates to the technical field of vehicle manufacturing, in particular to a self-adaptive suspension system. The invention also relates to a chassis comprising the adaptive suspension system and an automobile comprising the chassis.
Background
The vibration reduction is a link which cannot be ignored in the design and manufacture process of the automobile, and the quality of the vibration reduction performance of the automobile relates to the driving comfort and safety.
Conventional automobiles typically employ a suspension system with hydraulic cylinders or springs for damping, which is a stiff steel structural system. When the height fluctuation appears on the road surface, the car can swing up and down and sway left and right, the vibration reduction is realized by slowing down the up-and-down swinging speed through a spring or a hydraulic cylinder, and the passive suspension can be called as a passive suspension. However, when the amplitude of the oscillation reaches a certain degree, not only the driving comfort is greatly limited, but also the vehicle has the risk of overturning or rolling, which is very easy to happen under the off-road condition.
Therefore, how to improve the driving comfort and safety becomes a technical problem to be solved by those skilled in the art.
Disclosure of Invention
The invention aims to provide an adaptive suspension system which can adjust the height of an automobile car, so that the automobile car is kept in a horizontal state, and the driving comfort and safety of an automobile are improved. It is another object of the present invention to provide a chassis including the adaptive suspension system described above. It is a further object of the present invention to provide an automobile comprising the above-mentioned chassis.
In order to achieve the aim, the invention provides a self-adaptive suspension system which comprises a suspension body and a cantilever, wherein the cantilever is arranged above the suspension body and used for supporting an automobile car and adjusting the height of the automobile car according to the fluctuation of the height of a road surface;
the automobile suspension system is characterized by further comprising a height position sensor for detecting the height fluctuation of the road surface and a driving part for driving the cantilever to do lifting motion, so that the driving part adjusts the lifting of the cantilever according to the detection result of the height position sensor to enable the automobile car to keep horizontal.
Optionally, the height position sensors and the cantilevers are four, the four height position sensors are used for being respectively arranged at four hubs of an automobile, the four cantilevers are respectively arranged at four sides of the suspension body close to the four hubs, any one cantilever is connected with one driving part, and the driving part and the height position sensors are both used for being connected to a central control center of the automobile.
Optionally, the cantilever is a gas spring, and the driving part is a compressor connected to the gas spring.
Optionally, the cantilever is a hydraulic rod, and the driving part is an oil pump connected with the hydraulic rod.
Optionally, a first kinematic pair for driving the cantilever to move along the front-back direction of the suspension body is arranged between the suspension body and the cantilever, and the suspension further includes a first driving motor for driving the first kinematic pair to drive the cantilever to move and a front-back position sensor connected to the first driving motor.
Optionally, a second kinematic pair for driving the cantilever to move along the left-right direction of the suspension body is arranged between the suspension body and the cantilever, and the suspension further includes a second driving motor for driving the second kinematic pair to drive the cantilever to move and a left-right position sensor connected to the second driving motor.
The invention provides a chassis comprising an adaptive suspension system as described in any one of the preceding claims.
The invention further provides an automobile which comprises the automobile car and the chassis, wherein the automobile car is arranged above the chassis and is connected with the suspension body through the cantilever.
Optionally, the hub motor is used for driving the hub to rotate, and an output shaft of the hub motor is connected with the hub.
Optionally, the in-wheel motor is connected to a central control center of the automobile, and the in-wheel motor further comprises an energy storage unit connected to the in-wheel motor, and the energy storage unit is connected to the driving portion.
Compared with the background technology, the self-adaptive suspension system provided by the invention comprises a suspension body, wherein a cantilever used for supporting and adjusting the height of the car is arranged above the suspension body, the self-adaptive suspension system also comprises a height position sensor used for detecting the height fluctuation condition of the road surface and a suspension arm driven to move up and down according to the detection result of the height position sensor, so that the car is adjusted to be always kept in a horizontal or approximately horizontal state, the car is effectively prevented from rolling over, and the driving comfort and safety are improved.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the provided drawings without creative efforts.
Fig. 1 is a schematic diagram of an automobile with an adaptive suspension system according to an embodiment of the present invention.
Wherein:
firstly, inputting energy, 1-cantilever, 2-driving part, 3-height position sensor, 4-central control center, 5-energy storage unit and 6-sensor interface.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
In order that those skilled in the art will better understand the disclosure, the invention will be described in further detail with reference to the accompanying drawings and specific embodiments.
Referring to fig. 1, fig. 1 is a schematic diagram illustrating an operation of an automobile with an adaptive suspension system according to an embodiment of the present invention.
Wherein, the input energy is represented by the formula (I), and comprises the input energy of an automobile engine or a generator and the energy generated by braking. The invention provides a self-adaptive suspension system, which comprises a suspension body, wherein a cantilever 1 for supporting an automobile car is arranged above the suspension body, the cantilever 1 can do lifting motion under the driving action of a driving part 2, the self-adaptive suspension system also comprises a height position sensor 3 for sensing the fluctuation change of the road height, when the road height fluctuates, the height position sensor 3 detects the fluctuation value and sends the detection result to the driving part 2, and the driving part 2 drives the cantilever 1 to ascend or descend to ensure that the automobile car is in the horizontal position, so that the side rollover is prevented, and the driving comfort and the safety of the automobile are improved.
The adaptive suspension system provided by the present invention will be described in more detail with reference to the accompanying drawings and specific embodiments.
In a specific embodiment provided by the present invention, referring to fig. 1, the adaptive suspension system includes four height position sensors 3 and four cantilevers 1, the four height position sensors 3 are respectively installed at four hubs, the four cantilevers 1 are installed at four directions of the suspension body near the four hubs, positions of the four cantilevers 1 above the suspension can form a rectangle, so as to cooperate with each other to jointly complete support of the car, any one of the cantilevers 1 is further connected with a driving portion 2 for driving the cantilever 1 to perform a lifting motion, the four height position sensors 3 and the four driving portions 2 are connected to a central control center 4 of the car, the motion control of the cantilever 1 is realized through the central control center 4, and the height position sensor 3 is connected to the central control center 4 through a sensor interface 6.
The automobile is in the condition that the road surface is undulant unavoidably meeting in the in-process of traveling, wheel hub is along with the undulation motion of road surface, height position sensor 3 detects the undulation value and transmits the undulation value for drive division 2, drive division 2 receives 1 elevating movement of cantilever of height position sensor 3's testing result adjustment correspondence wheel hub department, four cantilevers 1 cooperate jointly to keep car at the automobile in-process all the time and keep the level or approximate horizontality, the effectual automobile that prevents takes place to turn on one's side, improve the travelling comfort of driving simultaneously.
In other words, the cantilevers 1, the height position sensors 3 and the driving parts 2 are in one-to-one correspondence, the movement of any one cantilever 1 is only driven by the driving part 2 corresponding to the cantilever 1, the driving part 2 is controlled by the height position sensor 3 connected with the cantilever 1, the cantilevers 1 can simultaneously perform lifting movement, the movement is independent, the movement results of the cantilevers 1 are coordinated with each other, and the horizontal position of the car is maintained through common adjustment.
Of course, the working principle of the adaptive suspension system provided by the present invention is described in the above embodiment by taking four suspension arms 1 as an example, and the number of the suspension arms 1, the height position sensor 3, and the driving unit 2 is not limited to four. For example, when the vehicle body is long and the number of hubs is large, one height position sensor 3 may be provided at each hub, and correspondingly, one suspension arm 1 is installed at the suspension body near the hub, as long as the height position sensors 3, the suspension arms 1, and the driving parts 2 are maintained in one-to-one correspondence.
Further, the cantilever 1 in the above embodiment may be an air spring, the driving portion 2 is a compressor, the air spring is connected to the compressor, and the air is pumped into or pumped out of the air spring through the compressor to control the expansion and contraction of the air spring, so as to control the car to lift along with the expansion and contraction of the air spring. For example, when the height position sensor 3 detects that the hub is lowered by a certain height value, the height value of the air spring with the same extension is required to compensate, the height corresponds to a certain air inflow of the air spring, the air inflow corresponds to the work of the compressor, the control of the expansion amount of the air spring can be realized only by adjusting the work of the compressor, the corresponding relation is stored in the central control center 4 of the automobile in advance, and the control of each compressor and the corresponding air spring is completed through the central control center 4.
In another embodiment, the cantilever 1 preferably adopts a hydraulic rod, the driving part 2 adopts an oil pump, the oil pump is connected with the hydraulic rod, oil is pumped into or out of the hydraulic rod, the expansion of the hydraulic rod is adjusted, and then the car is controlled to lift along with the expansion of the hydraulic rod. For example, when the height position sensor 3 detects that the automobile hub descends for a certain distance, the hydraulic rod needs to ascend for the same distance to compensate the distance, and the automobile car is guaranteed to be in a horizontal state. The telescopic quantity of the hydraulic rod corresponds to the variable quantity of oil in the hydraulic rod, and the variable quantity of the oil corresponds to the pumping or extracting quantity of the oil by the oil pump and corresponds to the acting of the oil pump. In other words, the corresponding relationship between the work of the oil pump and the amount of extension and retraction of the hydraulic rod is stored in the central control center 4 of the automobile in advance, and the control of each oil pump and even the hydraulic rod can be completed through the central control center 4.
Of course, the suspension arm 1 and the driving portion 2 may also adopt an electric push rod or the like, as long as the height of the car can be adjusted, and the details are not described herein.
In order to better ensure the stability of the car and improve the driving comfort and safety, the invention makes the following improvements on the basis of the embodiment. Set up first motion pair between suspension body and cantilever 1, first motion pair is the sliding pair for drive cantilever 1 moves along the fore-and-aft direction of suspension body, still includes the first driving motor of the motion of drive first motion pair and connects first driving motor's front and back position sensor. The front and rear position sensors detect the movement amount of the car relative to the suspension body, control the first driving motor to drive the moving pair to move, and drive the car to reset through the cantilever 1, so that the situation that the front and rear positions of the car relative to the suspension body are not changed excessively is ensured. The sliding pair can adopt a linear guide rail structure, a guide rail of the linear guide rail and the first driving motor can be connected through a gear and a rack, and the guide rail is connected with the cantilever 1. For those skilled in the art, there are various ways to realize that the first driving motor drives the first kinematic pair and thus the cantilever 1 to move back and forth, and the details are not repeated herein.
Furthermore, a second kinematic pair is arranged between the suspension body and the cantilever 1, the second kinematic pair also adopts a moving pair to drive the cantilever 1 to move along the left and right directions of the suspension body, and the suspension further comprises a second driving motor for driving the second kinematic pair to move and a left and right position sensor connected with the second driving motor. The left and right position sensors detect the movement amount of the car relative to the left and right directions of the suspension body, control the second driving motor to drive the moving pair to move, and drive the car to reset through the cantilever 1, so that the car is ensured not to generate overlarge change relative to the left and right positions of the suspension body. The second kinematic pair, the second driving motor and the connection relationship with the cantilever 1 may be mutually referred to the connection relationship with the first kinematic pair, the first driving motor and the cantilever 1, and details are not repeated herein. The front and rear position sensors and the left and right position sensors can be connected to a central control center 4 of the automobile, so that the central control center 4 can uniformly adjust the position of the automobile car relative to the suspension body.
As for the height position sensor 3, the front-rear position sensor, the left-right position sensor and the control method thereof provided in the above embodiments, which belong to the prior art, the present invention does not make specific improvements thereto, and thus, detailed descriptions of the above various sensors are omitted.
The present invention provides a chassis comprising an adaptive suspension system as described in the above embodiments, and reference is made to the prior art for the remainder of the chassis.
The invention also provides an automobile which comprises the automobile lift car and the chassis, wherein the automobile lift car is arranged above the suspension body of the chassis through the cantilever 1, the automobile lift car further comprises a hub motor for driving the hub of the chassis to rotate, and the hub motor is directly connected with the hub, so that a transmission mechanism is omitted, and the transmission efficiency is improved. In addition, the hub motor is connected with a central control center 4 of the automobile, the automobile is further provided with an energy storage unit 5 connected with the hub motor, and the energy storage unit 5 is connected with a driving part 2 for driving the cantilever 1 to move. The central control center 4 of the automobile adopts a four-quadrant motor control method for the hub motor, so that the hub motor is in a power generation or electric state under different working conditions, the energy stored in the power generation state by the energy storage unit 5 is supplied to the driving part 2 to drive the cantilever 1 to move up and down, and the energy utilization is optimal. As to the control method of the four quadrant motor, which belongs to a mature prior art, a detailed description thereof is omitted.
It is noted that, in this specification, relational terms such as first and second, and the like are used solely to distinguish one entity from another entity without necessarily requiring or implying any actual such relationship or order between such entities.
The automobile, the chassis and the adaptive suspension system thereof provided by the invention are described in detail above. The principles and embodiments of the present invention are explained herein using specific examples, which are presented only to assist in understanding the method and its core concepts. It should be noted that, for those skilled in the art, it is possible to make various improvements and modifications to the present invention without departing from the principle of the present invention, and those improvements and modifications also fall within the scope of the claims of the present invention.
Claims (7)
1. An adaptive suspension system is characterized by comprising a suspension body and a cantilever (1) which is arranged above the suspension body and used for supporting an automobile car and adjusting the height of the automobile car according to the fluctuation of the height of a road surface;
the automobile lift control system is characterized by further comprising a height position sensor (3) used for detecting height fluctuation of a road surface and a driving part (2) used for driving the cantilever (1) to move up and down, so that the driving part (2) can adjust the cantilever (1) to move up and down according to the detection result of the height position sensor (3) to enable the automobile lift car to be kept horizontal;
the height position sensors (3) and the cantilevers (1) are four in number, the four height position sensors are respectively arranged at four wheel hubs of an automobile, the four cantilevers (1) are respectively arranged on four sides of the suspension body close to the four wheel hubs, any one cantilever (1) is connected with one driving part (2), and the driving part (2) and the height position sensors (3) are both used for being connected to a central control center (4) of the automobile;
a first kinematic pair for driving the cantilever (1) to move along the front-back direction of the suspension body is arranged between the suspension body and the cantilever (1), and the suspension further comprises a first driving motor for driving the first kinematic pair to drive the cantilever (1) to move and a front-back position sensor connected with the first driving motor;
and a second kinematic pair for driving the cantilever (1) to move along the left and right directions of the suspension body is arranged between the suspension body and the cantilever (1), and the suspension further comprises a second driving motor for driving the second kinematic pair to drive the cantilever (1) to move and a left and right position sensor connected with the second driving motor.
2. An adaptive suspension system according to claim 1, wherein the suspension arm (1) is a gas spring and the drive (2) is a compressor connected to the gas spring.
3. The adaptive suspension system according to claim 1, characterized in that the suspension arm (1) is a hydraulic lever and the drive section (2) is an oil pump connected to the hydraulic lever.
4. A chassis comprising an adaptive suspension system according to any one of claims 1 to 3.
5. An automobile, characterized in that it comprises an automobile car and a chassis according to claim 4, said car being arranged above said chassis and being connected to said suspension body by means of said suspension arm (1).
6. The vehicle of claim 5, further comprising an in-wheel motor for driving the wheel hub to rotate, wherein an output shaft of the in-wheel motor is coupled to the wheel hub.
7. The automobile according to claim 6, characterized in that the in-wheel motor is connected with a central control center (4) of the automobile, and further comprises an energy storage unit (5) connected with the in-wheel motor, wherein the energy storage unit (5) is connected with the driving part (2).
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910926646.5A CN110588271B (en) | 2019-09-27 | 2019-09-27 | Automobile, chassis and self-adaptive suspension system thereof |
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| CN201910926646.5A CN110588271B (en) | 2019-09-27 | 2019-09-27 | Automobile, chassis and self-adaptive suspension system thereof |
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| CN110588271B true CN110588271B (en) | 2021-06-29 |
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| DE19804005A1 (en) * | 1997-04-03 | 1998-10-08 | Mando Machine Co Ltd | Active control of suspension of car |
| CN205009910U (en) * | 2015-08-31 | 2016-02-03 | 方磅礴 | Anti hydraulic system that heels, leans forward of initiative |
| CN106114116A (en) * | 2016-08-11 | 2016-11-16 | 方勇海 | A kind of active balancing formula automobile suspension system |
| CN107199841A (en) * | 2017-07-04 | 2017-09-26 | 农业部南京农业机械化研究所 | The hydraulic pressure independent suspension and its control method of a kind of horizontal automatic adjusument |
| CN108944327A (en) * | 2018-07-25 | 2018-12-07 | 农业部南京农业机械化研究所 | A kind of bilayer suitable for Hills can automatically adjust suspension |
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| CN110588271A (en) | 2019-12-20 |
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