CN115991069A - Automobile wheel steering structure for drive-by-wire four-wheel steering - Google Patents
Automobile wheel steering structure for drive-by-wire four-wheel steering Download PDFInfo
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- CN115991069A CN115991069A CN202211415978.5A CN202211415978A CN115991069A CN 115991069 A CN115991069 A CN 115991069A CN 202211415978 A CN202211415978 A CN 202211415978A CN 115991069 A CN115991069 A CN 115991069A
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Abstract
The invention discloses an automobile wheel steering structure for four-wheel steering by wire, which comprises wheel steering driving units respectively arranged at the front end and the rear end of a vehicle, wherein the wheel steering driving units control the steering of wheels by driving wheel knuckles, and the automobile wheel steering structure also comprises front suspension units respectively arranged at the outer sides of front longitudinal beams at the left and right sides of the front part of the vehicle and rear suspension units respectively arranged at the outer sides of rear longitudinal beams at the left and right sides of the rear part of the vehicle; the upper mounting part of the front suspension unit is matched and mounted at the upper ball pin of the wheel steering knuckle at the front part of the vehicle, and the lower mounting part of the front suspension unit is matched and mounted at the lower ball pin of the wheel steering knuckle at the front part of the vehicle; the upper mounting part of the rear suspension unit is matched and mounted at the upper ball pin of the wheel steering knuckle at the rear part of the vehicle, and the lower mounting part of the rear suspension unit is matched and mounted at the lower ball pin of the wheel steering knuckle at the rear part of the vehicle.
Description
Technical Field
The invention relates to an automobile steering structure, in particular to an automobile wheel steering structure for four-wheel steering by wire.
Background
In the prior art, in order to achieve a turning of a vehicle, the front wheels of the vehicle must be set to be steerable, and thus, in order to obtain a front wheel turning angle as large as possible, it is necessary for the front wheels to have a sufficiently large turning space, resulting in an excessively large envelope of the front wheel tires.
In order to solve the above problems, a vehicle type having four-wheel steering has appeared in the market. The rear suspension of the vehicle type is of a multi-connecting-rod structure, and the angle of the rear wheel corner of the vehicle type is still limited due to the limitation of the rubber bushing.
In the field of new energy automobiles, because of adopting a vehicle body structure which is distinct from that of a traditional fuel automobile, the rotation angle of wheels and the steering wheel are not limited by mechanical connection, so that the rotation angle of the steering wheel and the rotation angle of the wheels can be completely controlled by a system, namely, the steering ratio can be randomly adjusted through steer-by-wire. However, in the structure of simply steering the front wheels, the front wheels bear the functions of steering and driving at the same time, which brings about the disadvantage of understeer, and especially the understeer is obvious when the front wheels are over-bent at high speed. In the simple rear-drive two-wheel steering structure, when the vehicle is over-bent, the center of gravity of the vehicle moves forward due to the deceleration of the vehicle, so that the grip force of the rear wheels is reduced, and the steering is easy to be excessive.
Disclosure of Invention
The invention provides an automobile wheel steering structure for four-wheel steering by wire control aiming at the defects of the prior art.
The invention relates to an automobile wheel steering structure for four-wheel steering by wire, which comprises wheel steering driving units respectively arranged at the front end and the rear end of a vehicle, wherein the wheel steering driving units control the steering of wheels by driving wheel knuckles, and the automobile wheel steering structure also comprises front suspension units respectively arranged at the outer sides of front longitudinal beams at the left side and the right side of the front part of the vehicle and rear suspension units respectively arranged at the outer sides of rear longitudinal beams at the left side and the right side of the rear part of the vehicle;
the upper mounting part of the front suspension unit is matched and mounted at the upper ball pin of the wheel steering knuckle at the front part of the vehicle, and the lower mounting part of the front suspension unit is matched and mounted at the lower ball pin of the wheel steering knuckle at the front part of the vehicle;
the upper mounting part of the rear suspension unit is matched and mounted at the upper ball pin of the wheel steering knuckle at the rear part of the vehicle, and the lower mounting part of the rear suspension unit is matched and mounted at the lower ball pin of the wheel steering knuckle at the rear part of the vehicle.
In the steering structure of the automobile wheel for the four-wheel steering by wire, the front suspension unit comprises an upper swing arm, a lower swing arm and a shock absorber;
the upper end parts of the fork arms of the upper swing arm protrude forwards are respectively connected to the upper parts of the front longitudinal beams, and the upper end parts of the shock absorbers are arranged on the upper parts of the front longitudinal beams and are positioned on the front sides of the fork arms of the upper swing arm; an end part of the upper swing arm protruding backwards forms an upper mounting part which is matched and mounted with an upper ball pin of a wheel steering knuckle at the front part of the vehicle, and a vertical mounting hole position is arranged in the center of the upper mounting part;
the two front ends of the fork arms of the lower swing arm protruding forwards are respectively connected to the lower parts of the front longitudinal beams, and the lower ends of the shock absorbers penetrate through the lower swing arm and are mounted on the bottom surface mounting seats of the lower swing arm; the end part of the lower swing arm protruding backwards forms a lower installation part which is matched and installed with a lower ball pin of a wheel steering knuckle at the front part of the vehicle, and the center of the lower installation part is provided with a vertical installation hole site.
In the steering structure of the automobile wheel for the four-wheel steering by wire, the fork arm of the upper swing arm comprises a first fork arm protruding from the front side of the upper swing arm, the front end part of the first fork arm is provided with an upper longitudinal beam inner mounting part used for connecting the upper part of the front longitudinal beam, and the center of the upper longitudinal beam inner mounting part is provided with a horizontal mounting hole site;
the fork arm of the upper swing arm further comprises a second fork arm protruding obliquely and rightwards from the front side of the upper swing arm, the front end part of the second fork arm is provided with an upper longitudinal beam flexible section inner mounting part used for being connected with the upper part of the front longitudinal beam, and the center of the upper longitudinal beam flexible section inner mounting part is provided with a horizontal mounting hole site.
In the steering structure of the automobile wheel for the four-wheel steering by wire, the fork arm of the lower swing arm comprises a first fork arm protruding from the left front side of the lower swing arm, the front end part of the first fork arm is provided with a lower longitudinal beam inner mounting part used for connecting the lower part of the front longitudinal beam, and the center of the lower longitudinal beam inner mounting part is provided with a horizontal mounting hole site;
the fork arm further comprises a second fork arm protruding from the right front side of the lower swing arm, the front end portion of the second fork arm is provided with a lower longitudinal beam flexible section inner mounting portion used for being connected with the lower portion of the front longitudinal beam, and the center of the lower longitudinal beam flexible section inner mounting portion is provided with a horizontal mounting hole position.
In the steering structure of the automobile wheel for the four-wheel steering by wire, the middle part of the lower swing arm is provided with the inserting hole for the lower end part of the shock absorber to pass through, and the bottom surface mounting seat is arranged on the bottom surface of the lower swing arm and is respectively arranged at two sides of the inserting hole;
the side of lower swing arm still is provided with the stabilizer bar mount pad.
In the steering structure of the automobile wheel for the four-wheel steering by wire, the rear suspension unit comprises an upper swing arm, a lower swing arm and a shock absorber;
the upper end parts of the fork arms of the upper swing arm protrude forwards are respectively connected to the upper parts of the rear longitudinal beams, and the upper end parts of the shock absorbers are arranged on the upper parts of the rear longitudinal beams and are positioned on the rear sides of the fork arms of the upper swing arm; an end part of the upper swing arm protruding backwards forms an upper mounting part which is matched and mounted with an upper ball pin of a wheel steering knuckle at the rear part of the vehicle, and a vertical mounting hole position is arranged in the center of the upper mounting part;
the two front ends of the fork arms of the lower swing arm protruding forwards are respectively connected to the lower parts of the rear longitudinal beams, and the lower ends of the shock absorbers penetrate through the lower swing arm and are mounted on the bottom surface mounting seats of the lower swing arm; the end part of the lower swing arm protruding backwards forms a lower installation part which is matched and installed with a lower ball pin of a wheel steering knuckle at the rear part of the vehicle, and the center of the lower installation part is provided with a vertical installation hole site.
In the steering structure of the automobile wheel for the four-wheel steering by wire, the fork arm of the upper swing arm comprises a first fork arm protruding from the front side of the upper swing arm, the front end part of the first fork arm is provided with an upper longitudinal beam inner mounting part used for connecting the upper part of the rear longitudinal beam, and the center of the upper longitudinal beam inner mounting part is provided with a horizontal mounting hole site;
the fork arm of the upper swing arm further comprises a second fork arm protruding from the front side of the upper swing arm obliquely to the right, the front end part of the second fork arm is provided with an upper longitudinal beam flexible section inner mounting part used for being connected with the upper part of the rear longitudinal beam, and the center of the upper longitudinal beam flexible section inner mounting part is provided with a horizontal mounting hole site.
In the steering structure of the automobile wheel for the four-wheel steering by wire, the fork arm of the lower swing arm comprises a first fork arm protruding from the left front side of the lower swing arm, the front end part of the first fork arm is provided with a lower longitudinal beam inner mounting part used for connecting the lower part of the rear longitudinal beam, and the center of the lower longitudinal beam inner mounting part is provided with a horizontal mounting hole site;
the fork arm further comprises a second fork arm protruding from the right front side of the lower swing arm, the front end portion of the second fork arm is provided with a lower longitudinal beam flexible section inner mounting portion used for being connected with the lower portion of the rear longitudinal beam, and the center of the lower longitudinal beam flexible section inner mounting portion is provided with a horizontal mounting hole position.
In the steering structure of the automobile wheel for the four-wheel steering by wire, the middle part of the lower swing arm is provided with the inserting hole for the lower end part of the shock absorber to pass through, and the bottom surface mounting seat is arranged on the bottom surface of the lower swing arm and is respectively arranged at two sides of the inserting hole;
the side of lower swing arm still is provided with the stabilizer bar mount pad.
The steering structure of the automobile wheel for the four-wheel steering by wire control enables the rear wheel to break through the angle limitation and achieve any deflection angle. The convenience and parking agility of the vehicle can be ensured when the vehicle is bent at a low speed, and the control stability can be improved when the vehicle is bent at a high speed. And through rear wheel steering, can be under the forward premise of rear wheel steering, the front wheel only need carry out relative small angle, can realize under certain turning radius environment, reaches the effect of same turning radius. Moreover, through control of the drive-by-wire system, the front and rear wheel steering angles can be balanced, a certain turning radius is met, the tire envelope is better optimized, and more choices are provided for peripheral space arrangement. Under the condition that the actual rotation angle requirement of the wheels is reduced, the arrangement of the driving shafts can be more probable, and the angle limitation on the driving shafts is reduced; moreover, because the periphery of the wheel package is not required to be subjected to interference design, the wheel package is reduced, the distance between longitudinal beams is increased, the indoor space of the vehicle is increased, and the increase of the vehicle arrangement space inevitably brings better cabin arrangement experience.
Drawings
FIG. 1 is a schematic view of a front wheel portion of a four-wheel-by-wire steering architecture for a vehicle in accordance with the present invention;
FIG. 2 is an exploded schematic view of a front wheel portion of a four-wheel-by-wire steering architecture for an automobile in accordance with the present invention;
FIG. 3 is a further exploded schematic view of the front wheel portion of the four-wheel steer-by-wire vehicle wheel steering architecture of the present invention;
FIG. 4 is an enlarged schematic view of a front wheel portion of a four-wheel-by-wire steering vehicle wheel steering architecture in accordance with the present invention;
FIG. 5 is a schematic view of a front wheel portion of a four-wheel-by-wire steering architecture for a vehicle in accordance with the present invention;
fig. 6 is a schematic view of a rear wheel portion in a steering structure for a four-wheel-by-wire vehicle according to the present invention.
Detailed Description
The present invention is described in further detail below with reference to the drawings to enable those skilled in the art to practice the invention by referring to the description.
As shown in fig. 1, 2, 3, 4, 5 and 6, the steering structure for four-wheel-by-wire steering of an automobile according to the present invention includes wheel steering driving units 1 provided at a front end and a rear end of the vehicle, respectively, and the wheel steering driving units 1 control steering of wheels by driving wheel knuckles 3. The steering structure for four-wheel-by-wire steering of the automobile further comprises a front suspension unit 5 respectively arranged outside a front longitudinal beam 21 on the left side of the front part of the automobile and a front longitudinal beam 22 on the right side of the front part of the automobile, and a rear suspension unit 6 respectively arranged outside rear longitudinal beams on the left side and the right side of the rear part of the automobile. In this embodiment, the front suspension unit 5 and the rear suspension unit 6 have the same structure, and in practical application, the front suspension unit 5 and the rear suspension unit 6 can be commonly used only by adjusting the corresponding mounting angle. The front suspension units respectively arranged on the left side and the right side of the front part of the vehicle have the same structure, and the front suspension units are only required to be symmetrically assembled in practical application; similarly, the rear suspension units respectively disposed on the left and right sides of the rear portion of the vehicle are correspondingly identical in structure, and only need to be symmetrically assembled in practical applications.
In the steering structure for four-wheel steering by wire of the present invention, the upper mounting portion 54 of the front suspension unit 5 is mounted on the upper ball pin 31 of the wheel knuckle 3 in front of the vehicle, and the lower mounting portion 55 of the front suspension unit 5 is mounted on the lower ball pin 32 of the wheel knuckle 3 in front of the vehicle. Similarly, the upper mounting portion of the rear suspension unit 6 is mounted on the upper ball pin of the wheel knuckle at the rear of the vehicle in a matching manner, and the lower mounting portion of the rear suspension unit is mounted on the lower ball pin of the wheel knuckle at the rear of the vehicle in a matching manner.
The steering structure of the automobile wheel for the four-wheel steering by wire control enables the rear wheel to break through the angle limitation and achieve any deflection angle. The convenience and parking agility of the vehicle can be ensured when the vehicle is bent at a low speed, and the control stability can be improved when the vehicle is bent at a high speed. And through rear wheel steering, can be under the forward premise of rear wheel steering, the front wheel only need carry out relative small angle, can realize under certain turning radius environment, reaches the effect of same turning radius. Moreover, through control of the drive-by-wire system, the front and rear wheel steering angles can be balanced, a certain turning radius is met, the tire envelope is better optimized, and more choices are provided for peripheral space arrangement. Under the condition that the actual rotation angle requirement of the wheels is reduced, the arrangement of the driving shafts can be more probable, and the angle limitation on the driving shafts is reduced; moreover, because the periphery of the wheel package is not required to be subjected to interference design, the wheel package is reduced, the distance between longitudinal beams is increased, the indoor space of the vehicle is increased, and the increase of the vehicle arrangement space inevitably brings better cabin arrangement experience.
As shown in the following table, it can be seen that, with the steering structure of the vehicle wheel for four-wheel steering by wire according to the present invention, under the same minimum turning radius (for example, the turning radius is 4.24 meters), the control strategy of front wheel steering and rear wheel steering is adopted at the same time, so that when the front wheel rotates only 24.3 degrees and the rear wheel rotates 18 degrees, the turning control effect that the rear wheel is stationary and the front wheel rotates 45 degrees can be achieved.
Specifically, in the steering structure for four-wheel-by-wire steering of the present invention, the front suspension unit 5 includes an upper swing arm 51, a lower swing arm 52, and a shock absorber 53. Wherein, two front ends of the fork arm of the upper swing arm 51 protruding forward are respectively connected to the upper portion of the front side member 21, and an upper end 531 of the damper 53 is mounted to the upper portion of the front side member 21 and located at the front side (closer to the head) of the fork arm of the upper swing arm 51; the end of the upper swing arm 51 protruding backward forms an upper mounting portion 54 mounted in cooperation with the upper ball pin 31 of the wheel knuckle 3 at the front of the vehicle, and a vertical mounting hole 516 is provided at the center of the upper mounting portion 54. The two front ends of the fork arms of the lower swing arm 52 protruding forward are respectively connected to the lower part of the front longitudinal beam 21, and the lower end 532 of the shock absorber 53 passes through the lower swing arm 52 and is mounted on the bottom mounting seat 520 of the lower swing arm 52; the end of the lower swing arm 52 protruding backward forms a lower mounting portion 55 mounted in cooperation with the lower ball pin 32 of the wheel knuckle 3 at the front of the vehicle, and a vertical mounting hole is provided at the center of the lower mounting portion 55.
In the steering structure for four-wheel-by-wire steering of the present invention, the yoke of the upper swing arm 51 specifically includes a first yoke 511 protruding from the front side of the upper swing arm 51, the front end of the first yoke 511 has an upper rail inner mounting portion 513 for connecting to the upper portion of the front rail 21, and a horizontal mounting hole is provided at the center of the upper rail inner mounting portion, and can be mounted on the upper portion of the front rail 21 through the horizontal mounting hole. The yoke of the upper swing arm 51 further includes a second yoke 512 protruding obliquely rightward from the front side of the upper swing arm 51, the front end of the second yoke 512 has an upper rail flexible section inner mounting portion 514 for connecting the upper portion of the front rail 21, and a horizontal mounting hole 515 is provided in the center of the upper rail flexible section inner mounting portion 514, and can be mounted on the upper portion of the front rail 21 through the horizontal mounting hole 515.
In the steering structure for four-wheel-by-wire steering of the present invention, the yoke of the lower swing arm 52 specifically includes a first yoke 523 protruding from the left front side of the lower swing arm 52, the front end of the first yoke 523 has a lower side member inner mounting portion 521 for connecting to the lower portion of the front side member 21, and a horizontal mounting hole is provided at the center of the lower side member inner mounting portion 521, and can be mounted on the lower portion of the front side member 21 through the horizontal mounting hole. The yoke further includes a second yoke 524 protruding from the right front side of the lower swing arm 52, a front end portion of the second yoke 524 has a lower side rail flexible section inner mounting portion 522 for connecting the lower portion of the front side rail 21, and a horizontal mounting hole position is provided at the center of the lower side rail flexible section inner mounting portion 522, through which the lower portion of the front side rail 21 can be mounted.
In order to set up the shock absorber, also set up the insertion hole 525 that the underpart 532 of the said shock absorber 52 wears and establishes in the middle part of the said lower swing arm 52, the said bottom surface mount pad 520 is set up in the bottom surface of the said lower swing arm 52, and locate at the both sides of the said insertion hole 525 separately; a stabilizer bar mounting seat 526 for mounting the stabilizer bar 9 is also provided beside the lower swing arm 52.
As in the front suspension unit described above, in the steering structure for a four-wheel-by-wire vehicle according to the present invention, as shown in fig. 6, the rear suspension unit 6 includes an upper swing arm 61, a lower swing arm 62, and a shock absorber 63. Wherein, two front ends of the fork arm of the upper swing arm 61 protruding forward are respectively connected to the upper part of the rear longitudinal beam (not shown), and the upper end of the shock absorber 63 is mounted on the upper part of the rear longitudinal beam and is positioned at the rear side (closer to the tail part) of the fork arm of the upper swing arm 61; the end of the upper swing arm 61 protruding backward forms an upper mounting part which is mounted in cooperation with an upper ball pin of a wheel knuckle at the rear of the vehicle, and a vertical mounting hole position is arranged at the center of the upper mounting part. The two front ends of the fork arms of the lower swing arm 62 protruding forward are respectively connected to the lower part of the rear longitudinal beam, and the lower end of the shock absorber 63 passes through the lower swing arm 62 and is mounted on a bottom surface mounting seat of the lower swing arm 62; the end of the lower swing arm 62 protruding rearward forms a lower mounting portion mounted in cooperation with a lower ball pin of a wheel knuckle at the rear of the vehicle, and a vertical mounting hole is provided at the center of the lower mounting portion.
Still referring to fig. 6, the yoke of the upper swing arm 61 includes a first yoke protruding from a front side of the upper swing arm 61, a front end portion of the first yoke having an upper rail inner mounting portion 613 for connecting an upper portion of the rear rail, and a horizontal mounting hole position is provided at a center of the upper rail inner mounting portion 613. The fork arm of the upper swing arm 61 further comprises a second fork arm protruding obliquely and rightwards from the front side of the upper swing arm 61, the front end part of the second fork arm is provided with an upper longitudinal beam flexible section inner mounting part 614 used for connecting the upper part of the rear longitudinal beam, and the center of the upper longitudinal beam flexible section inner mounting part 614 is provided with a horizontal mounting hole site.
Still referring to fig. 6, the yoke of the lower swing arm 62 includes a first yoke protruding from a left front side of the lower swing arm, a front end portion of the first yoke having a lower side sill inner mounting portion 621 for connecting a lower portion of the rear side sill, and a horizontal mounting hole position provided at a center of the lower side sill inner mounting portion 621. The yoke further comprises a second yoke protruding from the right front side of the lower swing arm 62, the front end of the second yoke is provided with a lower longitudinal beam flexible section inner mounting part 622 for connecting the lower part of the rear longitudinal beam, and the center of the lower longitudinal beam flexible section inner mounting part 622 is provided with a horizontal mounting hole site. The middle part of the lower swing arm 62 is also provided with an inserting hole 625 for the lower end part of the shock absorber 63 to penetrate, the bottom surface mounting seat is arranged on the bottom surface of the lower swing arm and is respectively arranged on two sides of the inserting hole, and the side of the lower swing arm is also provided with a stabilizer bar mounting seat.
Although embodiments of the present invention have been disclosed above, it is not limited to the details and embodiments shown and described, it is well suited to various fields of use for which the invention would be readily apparent to those skilled in the art, and accordingly, the invention is not limited to the specific details and illustrations shown and described herein, without departing from the general concepts defined in the claims and their equivalents.
Claims (9)
1. The steering driving unit controls the steering of the wheels by driving the wheel knuckles, and is characterized by further comprising front suspension units respectively arranged on the outer sides of front longitudinal beams on the left side and the right side of the front part of the vehicle and rear suspension units respectively arranged on the outer sides of rear longitudinal beams on the left side and the right side of the rear part of the vehicle;
the upper mounting part of the front suspension unit is matched and mounted at the upper ball pin of the wheel steering knuckle at the front part of the vehicle, and the lower mounting part of the front suspension unit is matched and mounted at the lower ball pin of the wheel steering knuckle at the front part of the vehicle;
the upper mounting part of the rear suspension unit is matched and mounted at the upper ball pin of the wheel steering knuckle at the rear part of the vehicle, and the lower mounting part of the rear suspension unit is matched and mounted at the lower ball pin of the wheel steering knuckle at the rear part of the vehicle.
2. The vehicle wheel steering structure for four-wheel-by-wire steering according to claim 1, wherein the front suspension unit includes an upper swing arm, a lower swing arm, and a shock absorber;
the upper end parts of the fork arms of the upper swing arm protrude forwards are respectively connected to the upper parts of the front longitudinal beams, and the upper end parts of the shock absorbers are arranged on the upper parts of the front longitudinal beams and are positioned on the front sides of the fork arms of the upper swing arm; an end part of the upper swing arm protruding backwards forms an upper mounting part which is matched and mounted with an upper ball pin of a wheel steering knuckle at the front part of the vehicle, and a vertical mounting hole position is arranged in the center of the upper mounting part;
the two front ends of the fork arms of the lower swing arm protruding forwards are respectively connected to the lower parts of the front longitudinal beams, and the lower ends of the shock absorbers penetrate through the lower swing arm and are mounted on the bottom surface mounting seats of the lower swing arm; the end part of the lower swing arm protruding backwards forms a lower installation part which is matched and installed with a lower ball pin of a wheel steering knuckle at the front part of the vehicle, and the center of the lower installation part is provided with a vertical installation hole site.
3. The vehicle wheel steering structure for four-wheel-by-wire steering according to claim 2, wherein the yoke of the upper swing arm includes a first yoke protruding from a front side of the upper swing arm, a front end portion of the first yoke having an upper rail inner mounting portion for connecting an upper portion of the front rail, a center of the upper rail inner mounting portion being provided with a horizontal mounting hole site;
the fork arm of the upper swing arm further comprises a second fork arm protruding obliquely and rightwards from the front side of the upper swing arm, the front end part of the second fork arm is provided with an upper longitudinal beam flexible section inner mounting part used for being connected with the upper part of the front longitudinal beam, and the center of the upper longitudinal beam flexible section inner mounting part is provided with a horizontal mounting hole site.
4. The vehicle wheel steering structure for four-wheel-by-wire steering according to claim 2, wherein the yoke of the lower swing arm includes a first yoke protruding from a left front side of the lower swing arm, a front end portion of the first yoke having a lower side sill inner mounting portion for connecting a lower portion of the front side sill, a center of the lower side sill inner mounting portion being provided with a horizontal mounting hole site;
the fork arm further comprises a second fork arm protruding from the right front side of the lower swing arm, the front end portion of the second fork arm is provided with a lower longitudinal beam flexible section inner mounting portion used for being connected with the lower portion of the front longitudinal beam, and the center of the lower longitudinal beam flexible section inner mounting portion is provided with a horizontal mounting hole position.
5. The steering structure for four-wheel-by-wire steering of an automobile according to claim 4, wherein an insertion hole through which the lower end portion of the shock absorber passes is formed in the middle portion of the lower swing arm, and the bottom surface mounting seat is disposed on the bottom surface of the lower swing arm and is disposed on both sides of the insertion hole;
the side of lower swing arm still is provided with the stabilizer bar mount pad.
6. The vehicle wheel steering structure for four-wheel-by-wire steering according to claim 1, wherein the rear suspension unit includes an upper swing arm, a lower swing arm, and a shock absorber;
the upper end parts of the fork arms of the upper swing arm protrude forwards are respectively connected to the upper parts of the rear longitudinal beams, and the upper end parts of the shock absorbers are arranged on the upper parts of the rear longitudinal beams and are positioned on the rear sides of the fork arms of the upper swing arm; an end part of the upper swing arm protruding backwards forms an upper mounting part which is matched and mounted with an upper ball pin of a wheel steering knuckle at the rear part of the vehicle, and a vertical mounting hole position is arranged in the center of the upper mounting part;
the two front ends of the fork arms of the lower swing arm protruding forwards are respectively connected to the lower parts of the rear longitudinal beams, and the lower ends of the shock absorbers penetrate through the lower swing arm and are mounted on the bottom surface mounting seats of the lower swing arm; the end part of the lower swing arm protruding backwards forms a lower installation part which is matched and installed with a lower ball pin of a wheel steering knuckle at the rear part of the vehicle, and the center of the lower installation part is provided with a vertical installation hole site.
7. The vehicle wheel steering structure for four-wheel-by-wire steering according to claim 6, wherein the yoke of the upper swing arm includes a first yoke protruding from a front side of the upper swing arm, a front end portion of the first yoke having an upper rail inner mounting portion for connecting an upper portion of the rear rail, a center of the upper rail inner mounting portion being provided with a horizontal mounting hole site;
the fork arm of the upper swing arm further comprises a second fork arm protruding from the front side of the upper swing arm obliquely to the right, the front end part of the second fork arm is provided with an upper longitudinal beam flexible section inner mounting part used for being connected with the upper part of the rear longitudinal beam, and the center of the upper longitudinal beam flexible section inner mounting part is provided with a horizontal mounting hole site.
8. The vehicle wheel steering structure for four-wheel-by-wire steering according to claim 6, wherein the yoke of the lower swing arm includes a first yoke protruding from a left front side of the lower swing arm, a front end portion of the first yoke having a lower side sill inner mounting portion for connecting a lower portion of the rear side sill, a center of the lower side sill inner mounting portion being provided with a horizontal mounting hole site;
the fork arm further comprises a second fork arm protruding from the right front side of the lower swing arm, the front end portion of the second fork arm is provided with a lower longitudinal beam flexible section inner mounting portion used for being connected with the lower portion of the rear longitudinal beam, and the center of the lower longitudinal beam flexible section inner mounting portion is provided with a horizontal mounting hole position.
9. The steering structure for four-wheel-by-wire steering of an automobile according to claim 8, wherein an insertion hole through which the lower end portion of the shock absorber passes is formed in the middle portion of the lower swing arm, and the bottom surface mounting seat is disposed on the bottom surface of the lower swing arm and is disposed on both sides of the insertion hole;
the side of lower swing arm still is provided with the stabilizer bar mount pad.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211415978.5A CN115991069A (en) | 2022-11-12 | 2022-11-12 | Automobile wheel steering structure for drive-by-wire four-wheel steering |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211415978.5A CN115991069A (en) | 2022-11-12 | 2022-11-12 | Automobile wheel steering structure for drive-by-wire four-wheel steering |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN115991069A true CN115991069A (en) | 2023-04-21 |
Family
ID=85994387
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202211415978.5A Pending CN115991069A (en) | 2022-11-12 | 2022-11-12 | Automobile wheel steering structure for drive-by-wire four-wheel steering |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN115991069A (en) |
-
2022
- 2022-11-12 CN CN202211415978.5A patent/CN115991069A/en active Pending
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