CN111361381A - Self-adaptive damping device for commercial vehicle, suspension system for commercial vehicle and vehicle damping method - Google Patents
Self-adaptive damping device for commercial vehicle, suspension system for commercial vehicle and vehicle damping method Download PDFInfo
- Publication number
- CN111361381A CN111361381A CN202010217315.7A CN202010217315A CN111361381A CN 111361381 A CN111361381 A CN 111361381A CN 202010217315 A CN202010217315 A CN 202010217315A CN 111361381 A CN111361381 A CN 111361381A
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- China
- Prior art keywords
- vehicle
- distance sensor
- damping
- controller
- shock absorber
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Classifications
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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
- B60G17/016—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 their responsiveness, when the vehicle is travelling, to specific motion, a specific condition, or driver input
- B60G17/0165—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 their responsiveness, when the vehicle is travelling, to specific motion, a specific condition, or driver input to an external condition, e.g. rough road surface, side wind
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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
-
- 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
- B60G17/01933—Velocity, e.g. relative velocity-displacement sensors
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60G—VEHICLE SUSPENSION ARRANGEMENTS
- B60G2202/00—Indexing codes relating to the type of spring, damper or actuator
- B60G2202/20—Type of damper
- B60G2202/24—Fluid damper
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60G—VEHICLE SUSPENSION ARRANGEMENTS
- B60G2400/00—Indexing codes relating to detected, measured or calculated conditions or factors
- B60G2400/20—Speed
- B60G2400/204—Vehicle speed
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60G—VEHICLE SUSPENSION ARRANGEMENTS
- B60G2400/00—Indexing codes relating to detected, measured or calculated conditions or factors
- B60G2400/80—Exterior conditions
- B60G2400/82—Ground surface
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60G—VEHICLE SUSPENSION ARRANGEMENTS
- B60G2500/00—Indexing codes relating to the regulated action or device
- B60G2500/10—Damping action or damper
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
- F16F9/00—Springs, vibration-dampers, shock-absorbers, or similarly-constructed movement-dampers using a fluid or the equivalent as damping medium
- F16F9/32—Details
- F16F9/53—Means for adjusting damping characteristics by varying fluid viscosity, e.g. electromagnetically
- F16F9/535—Magnetorheological [MR] fluid dampers
Abstract
The invention relates to the field of automobiles, and discloses a commercial vehicle self-adaptive damping device, a commercial vehicle suspension system and a vehicle damping method. The adaptive shock absorption device of the commercial vehicle comprises a distance sensor (10), wherein the distance sensor (10) is used for measuring the distance between the distance sensor (10) and the road surface; a shock absorber (30), said shock absorber (30) for providing support to a wheel and reducing vehicle shock, said shock absorber (30) configured as a variable damping shock absorber; a controller (20), wherein the controller (20) is electrically connected with the distance sensor (10), and the damping magnitude of the shock absorber (30) is adjusted according to the measuring signal of the distance sensor (10). Through the technical scheme, the controller (20) can adjust the damping force of the shock absorber (30) according to the information fed back by the distance sensor (10), so that the vehicle can adapt to different road conditions, and the comfort of drivers and passengers is improved.
Description
Technical Field
The invention relates to the field of automobiles, in particular to a commercial vehicle self-adaptive damping device, a commercial vehicle suspension system and a vehicle damping method.
Background
Suspension systems are one of the important components of a vehicle, and suspensions are the generic term for all force-transmitting connections between the frame (or load-bearing body) and the axle (or wheels) of a motor vehicle, which serve to transmit forces and torques acting between the wheels and the frame, and to dampen the impact forces transmitted to the frame or body by rough road surfaces and to reduce the vibrations caused thereby. Only with a good-performance suspension system, the automobile can be guaranteed to have good driving smoothness, operation stability and safe reliability.
The shock absorber is an important component of a suspension system, and is used for inhibiting the spring from absorbing shock when rebounding after shock and absorbing the energy of road surface impact so as to improve the smoothness of the automobile in running. When the shock absorber passes through the uneven road surface, although the shock absorbing spring can filter the shock of the road surface, the spring can still reciprocate, and the shock absorber is used for inhibiting the spring from jumping. Shock absorbers rely on damping forces to dampen the spring jump.
In the process of vehicle advancing, the damping of bumper shock absorber is generally unadjustable, and damping force is too little, and the automobile body will jump from top to bottom, and too big damping force will bring too big resistance, hinders the spring and normally works, influences the travelling comfort. For some vehicles, such as commercial vehicles, comfort and smoothness are important indicators for evaluating the vehicles. The damping force of the existing commercial vehicle shock absorber is generally nonadjustable, and can not actively adapt to the fluctuation situation of the road surface according to the road surface situation, and if the fluctuation situation of the road surface on which the vehicle runs is large, the shock absorption effect is not ideal.
Disclosure of Invention
Aiming at the defects in the prior art, the invention provides a self-adaptive shock absorption device for a commercial vehicle, which can adjust the damping of a shock absorber according to different road conditions, so that the comfort of drivers and passengers is improved.
In order to achieve the above object, a first aspect of the present invention provides an adaptive damping device for a commercial vehicle, comprising:
a distance sensor for measuring a distance between the distance sensor and a road surface;
a shock absorber for providing support to a wheel and reducing vehicle shock, the shock absorber configured as a variable damping shock absorber;
and the controller is electrically connected with the distance sensor and adjusts the damping of the shock absorber according to the measuring signal of the distance sensor.
Through the technical scheme, the controller can adjust the damping force of the shock absorber according to the information fed back by the distance sensor, so that the vehicle can adapt to different road conditions, and the comfort of drivers and passengers is improved.
Further, the four shock absorbers are respectively arranged on the front suspension, the rear suspension, the left suspension and the right suspension of the vehicle.
Further, the damper is configured as a magnetorheological damper.
Further, the distance sensor is mounted on the head of the vehicle.
Further, the controller is provided as an ECU.
The invention provides a commercial vehicle suspension system, which comprises the commercial vehicle adaptive damping device.
The commercial vehicle suspension system adopting the self-adaptive damping device for the commercial vehicle can adjust the damping force of the damper according to different road conditions, so that the vehicle can adapt to different road conditions, and the comfort of drivers and passengers is improved.
The third aspect of the invention provides a vehicle damping method, which comprises the self-adaptive damping device of the commercial vehicle;
the distance sensor measures the distance between the distance sensor and the road surface and transmits the measured value to the controller;
and after receiving the signal of the distance sensor, the controller adjusts the damping of the shock absorber.
Through the technical scheme, the controller can adjust the damping force of the shock absorber according to the information fed back by the distance sensor, so that the vehicle can adapt to different road conditions, and the comfort of drivers and passengers is improved.
Further, the distance sensor is used for measuring the distance between the distance sensor and the front road surface at the position of H meters.
Furthermore, an included angle between the laser emitted by the distance sensor and the road surface is set to be A;
the value measured by the distance sensor is L at the time of T, and the value measured by the distance sensor is L + Y at the time of T + X;
calculating the height difference Z of the road surface between the T time and the T + X time through the controller;
the controller adjusts the damping of the shock absorber according to the height difference Z.
Further, the self-adaptive shock absorption device for the commercial vehicle further comprises a speed sensor for detecting the traveling speed of the vehicle, wherein the speed sensor is electrically connected with the controller and transmits a speed signal to the controller;
and after the speed sensor transmits the traveling speed of the vehicle to the controller, the damping of the shock absorber is adjusted by combining the height difference Z.
Additional features and advantages of the invention will be set forth in the detailed description which follows.
Drawings
FIG. 1 is a schematic structural diagram of an embodiment of the adaptive damping device for a commercial vehicle according to the present invention;
FIG. 2 is a schematic structural diagram of one embodiment of a suspension system for a commercial vehicle according to the present invention;
FIG. 3 is a schematic structural diagram of another embodiment of the adaptive damping device for a commercial vehicle according to the invention;
FIG. 4 is a schematic view of the working principle of the adaptive damping device of the commercial vehicle according to the invention;
fig. 5 is a schematic diagram of how the distance sensor measures the distance between the road surface and the distance sensor.
Description of the reference numerals
10 distance sensor 20 controller
30 damper 40 speed sensor
Detailed Description
The following describes in detail specific embodiments of the present invention. It should be understood that the detailed description and specific examples, while indicating the present invention, are given by way of illustration and explanation only, not limitation.
In the present invention, the use of the terms of orientation such as "upper and lower" in the case where no description is made to the contrary generally means the orientation in the assembled and used state. "inner and outer" refer to the inner and outer contours of the respective component itself.
In a first aspect of the present invention, there is provided a self-adaptive damping device for a commercial vehicle, as shown in fig. 1, the self-adaptive damping device for a commercial vehicle, comprising:
a distance sensor 10, the distance sensor 10 being for measuring a distance between the distance sensor 10 and a road surface;
a shock absorber 30, said shock absorber 30 for providing support to a wheel and reducing vehicle shock, said shock absorber 30 configured as a variable damping shock absorber;
and the controller 20 is electrically connected with the distance sensor 10, and the damping of the shock absorber 30 is adjusted according to the measuring signal of the distance sensor 10.
In the above, it is preferable that the distance sensor 10 is mounted at a head position of the vehicle and is positioned in front of wheels of the vehicle, as shown in fig. 5.
Through the technical scheme, the controller 20 can adjust the damping force of the shock absorber 30 according to the information fed back by the distance sensor 10 and different road conditions, so that the vehicle can adapt to different road conditions, and the comfort of drivers and passengers is improved.
The shock absorbers 30 may be provided only on the rear wheel suspensions and the front wheels may be general shock absorbers (shock absorbers having non-adjustable damping force), and in order to improve the comfort of the entire vehicle, in a preferred embodiment of the present invention, as shown in fig. 2, the shock absorbers 30 are provided in four numbers, and the four shock absorbers 30 are respectively mounted on the front, rear, left and right suspensions of the vehicle.
In the above, preferably, the damper 30 is provided as a magnetorheological damper. Since the magnetorheological damper belongs to the prior art, the magnetorheological damper is adopted by some vehicles at present, and the structure and the working principle of the magnetorheological damper can be known in the prior published information by those skilled in the art, so that the specific structure and the working principle of the magnetorheological damper are not explained in the application. Preferably, the controller 20 is provided as an ecu (electronic Control unit) (also called "driving computer", "on-board computer", etc.). Since the ECU is also of the prior art and is already widely used in current vehicles, the specific structure of the ECU and its specific procedures and operating principles for processing data and controlling the shock absorber 30 will not be described in this application.
According to a second aspect of the invention, a suspension system of a commercial vehicle is provided, as shown in fig. 2, and comprises the adaptive shock absorption device of the commercial vehicle.
The commercial vehicle suspension system adopting the self-adaptive shock absorption device of the commercial vehicle can adjust the damping force of the shock absorber 30 according to different road conditions, so that the vehicle can adapt to different road conditions, and the comfort of drivers and passengers is improved.
In a third aspect, the invention provides a vehicle damping method, as shown in fig. 1-5, the vehicle damping method includes the adaptive damping device for the commercial vehicle; the distance sensor 10 measures the distance from the road surface and transmits the measured value to the controller 20; the controller 20 adjusts the damping of the shock absorber 30 after receiving the signal from the distance sensor 10.
Through the technical scheme, the controller 20 can adjust the damping force of the shock absorber according to the information fed back by the distance sensor 10, so that the vehicle can adapt to different road conditions, and the comfort of drivers and passengers is improved.
The distance sensor 10 can be used for measuring the distance between the distance sensor and the front road surface at H meters, and can also be used for measuring the vertical distance between the distance sensor and the road surface. In a preferred embodiment of the present invention, the distance sensor 10 is used to measure its distance H meters from the road surface ahead, which allows more data processing time for the controller 20 to adjust the damping of the shock absorber 30 more properly.
The distance sensor 10 may be an ultrasonic distance measuring sensor or a laser distance measuring sensor. Based on the advantages of wide measurement range, high response speed, no need of a reflector for remote measurement and high measurement precision and range of the laser ranging sensor. In the present invention, preferably, a laser ranging sensor is selected.
The damping force of the shock absorber 30 is adjusted according to different road conditions, so that the comfort of drivers and passengers is improved, and the specific implementation mode is as follows: the included angle between the laser emitted by the distance sensor 10 and the horizontal plane is set to be A. And when the time is T, the value measured by the distance sensor 10 is L, and when the time is T + X, the value measured by the distance sensor 10 is L + Y. The height difference Z between the T time and the T + X time road surface is calculated by the controller 20. The controller 20 adjusts the damping of the shock absorber 30 according to the height difference Z. The larger the absolute value of Z is, the controller 20 controls to reduce the damping force of the shock absorber 30; the smaller the absolute value of Z, the controller 20 controls to increase the damping force of the shock absorber 30. The calculation formula of the Z value is as follows: z ═ LsinA- (L + X) sinA |.
In consideration of the traveling speed of the vehicle, preferably, as shown in fig. 3, the adaptive damping device for a commercial vehicle is further equipped with a speed sensor 40 for detecting the traveling speed of the vehicle, and the speed sensor 40 is electrically connected to the controller 20 and can transmit a speed signal to the controller 20; the speed sensor 40 transmits the traveling speed of the vehicle to the controller 20, and then adjusts the damping of the shock absorber 30 in conjunction with the height difference Z (as shown in fig. 4). Specifically, when the road surface is relatively flat, that is, when the absolute value of Z is small, the controller 20 increases the damping of the shock absorber 30, so that the vehicle becomes smooth while running; when the road surface is rough, i.e., when the absolute value of Z is large, the controller 20 reduces the damping of the shock absorber 30. Different riders have different definitions for "larger absolute value of Z", "smaller absolute value of Z", "gentle", "bumpy", "faster" and "slower" etc. In this regard, the user may specifically quantify these values according to his or her own needs and input these values to the controller 20.
The preferred embodiments of the present invention have been described in detail, however, the present invention is not limited to the specific details of the above embodiments, and various simple modifications may be made to the technical solution of the present invention within the technical idea of the present invention, and these simple modifications are within the protective scope of the present invention.
It should be noted that the various features described in the above embodiments may be combined in any suitable manner without departing from the scope of the invention. The invention is not described in detail in order to avoid unnecessary repetition.
In addition, any combination of the various embodiments of the present invention is also possible, and the same should be considered as the disclosure of the present invention as long as it does not depart from the spirit of the present invention.
Claims (10)
1. The utility model provides a commercial car self-adaptation damping device which characterized in that includes:
a distance sensor (10), the distance sensor (10) being configured to measure a distance between the distance sensor (10) and a road surface;
a shock absorber (30), said shock absorber (30) for providing support to a wheel and reducing vehicle shock, said shock absorber (30) configured as a variable damping shock absorber;
a controller (20), wherein the controller (20) is electrically connected with the distance sensor (10), and the damping magnitude of the shock absorber (30) is adjusted according to the measuring signal of the distance sensor (10).
2. Active adjustment system of the rear wheel suspension of a motor vehicle according to claim 1, characterized in that the shock absorbers (30) are provided in four numbers, mounted on the front, rear, left and right suspension of the vehicle, respectively.
3. Adaptive damping device for commercial vehicles according to claim 2, characterized in that the damper (30) is provided as a magnetorheological damper.
4. The adaptive damping device for commercial vehicles according to claim 1, characterized in that: the distance sensor (10) is mounted on the head of the vehicle.
5. The adaptive damping device for commercial vehicles according to claim 1, characterized in that: the controller (20) is provided as an ECU.
6. A suspension system for a commercial vehicle, characterized in that it comprises an adaptive damping device for a commercial vehicle according to any one of claims 1 to 5.
7. A vehicle damping method, characterized in that the vehicle damping method comprises the adaptive commercial vehicle damping device of any one of claims 1-5;
the distance sensor (10) measures the distance between the distance sensor and the road surface and transmits the measured value to the controller (20);
and after receiving the signal of the distance sensor (10), the controller (20) adjusts the damping of the shock absorber (30).
8. A vehicle damping method according to claim 8, characterised in that the distance sensor (10) is arranged to measure its distance H metres from the road surface in front.
9. The vehicle shock absorption method according to claim 9, wherein an angle between the laser light emitted from the distance sensor (10) and the road surface is set to a;
the value measured by the distance sensor (10) is L at the time of T, and the value measured by the distance sensor (10) is L + Y at the time of T + X;
calculating a height difference Z of the road surface between the T time and the T + X time by the controller (20);
the controller (20) adjusts the damping of the shock absorber (30) according to the height difference Z.
10. The vehicle damping method according to claim 1, characterized in that the adaptive damping device for commercial vehicles further comprises a speed sensor (40) for detecting the vehicle traveling speed, the speed sensor (40) being electrically connected with the controller (20) and transmitting a speed signal to the controller (20);
the speed sensor (40) transmits the traveling speed of the vehicle to the controller (20), and then adjusts the damping of the shock absorber (30) in combination with the height difference Z.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010217315.7A CN111361381A (en) | 2020-03-25 | 2020-03-25 | Self-adaptive damping device for commercial vehicle, suspension system for commercial vehicle and vehicle damping method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010217315.7A CN111361381A (en) | 2020-03-25 | 2020-03-25 | Self-adaptive damping device for commercial vehicle, suspension system for commercial vehicle and vehicle damping method |
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| Publication Number | Publication Date |
|---|---|
| CN111361381A true CN111361381A (en) | 2020-07-03 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010217315.7A Pending CN111361381A (en) | 2020-03-25 | 2020-03-25 | Self-adaptive damping device for commercial vehicle, suspension system for commercial vehicle and vehicle damping method |
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| CN (1) | CN111361381A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113665310A (en) * | 2021-10-22 | 2021-11-19 | 徐州铁手五金工具制造有限公司 | Small-size mine is with drawing car damping device |
| US20230086480A1 (en) * | 2021-09-17 | 2023-03-23 | Rivian Ip Holdings, Llc | Active suspension damping |
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| CN110614894A (en) * | 2019-08-21 | 2019-12-27 | 南京航空航天大学 | Active suspension control system and control method for complex road conditions |
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| DE3002765A1 (en) * | 1980-01-26 | 1981-07-30 | Christoph Dipl.-Phys. 2283 Wenningstedt Schlobies | Control system which adjusts position of vehicle wheels - measures distance between vehicle and ground and uses computer to make adjustments according to type of terrain |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20230086480A1 (en) * | 2021-09-17 | 2023-03-23 | Rivian Ip Holdings, Llc | Active suspension damping |
| CN113665310A (en) * | 2021-10-22 | 2021-11-19 | 徐州铁手五金工具制造有限公司 | Small-size mine is with drawing car damping device |
| CN113665310B (en) * | 2021-10-22 | 2021-12-28 | 徐州铁手五金工具制造有限公司 | Small-size mine is with drawing car damping device |
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