CN212738263U - Integrated wheel assembly with redundant steer-by-wire mechanism - Google Patents
Integrated wheel assembly with redundant steer-by-wire mechanism Download PDFInfo
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- CN212738263U CN212738263U CN202021792619.8U CN202021792619U CN212738263U CN 212738263 U CN212738263 U CN 212738263U CN 202021792619 U CN202021792619 U CN 202021792619U CN 212738263 U CN212738263 U CN 212738263U
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- bevel gear
- redundant
- steering
- wheel assembly
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Abstract
The utility model discloses an integrated form wheel assembly with redundant steer-by-wire mechanism, include: an upper swing arm and a knuckle of the suspension; a redundant steering motor fixed to the vehicle body; the upper end of the first ball pin is matched with a ball head of the upper swing arm of the suspension, and the lower end of the first ball pin is matched with the upper end of the steering knuckle through a flat key or a spline; the first bevel gear is sleeved on the rod part and is matched with the rod part of the first ball pin through a flat key or a spline; the second bevel gear is connected to an output shaft of the redundant steering motor through a universal joint; the second bevel gear is meshed with the first bevel gear; the redundant steering motor works, and the running safety of the vehicle is improved.
Description
Technical Field
The utility model relates to a car a steering system, suspension system and integrated technique between them, more specifically relate to an integrated form wheel assembly with redundant steer-by-wire mechanism.
Background
An automotive steering system is a series of devices used to change or maintain the direction of travel or reverse of an automobile. The function of the steering system of the automobile is to control the driving direction of the automobile according to the intention of the driver. The automobile steering system is important to the driving safety of the automobile, so the automobile steering system is a system which must be considered for the automobile safety.
At present, automobile steering systems are divided into two main categories: mechanical steering systems and power steering systems.
Mechanical steering systems use the driver's physical strength as the steering energy source, where all force transmitting members are mechanical. The mechanical steering system consists of three parts, namely a steering control mechanism, a steering gear and a steering transmission mechanism. The power steering system is a steering system which uses both driver physical power and engine power as steering energy. Under normal conditions, only a small portion of the energy required for steering the vehicle is provided by the driver, while the majority is provided by the engine through the power steering. However, in the event of a failure of the power steering system, the driver should generally be able to undertake the steering task of the vehicle independently. Therefore, the power steering system is formed by adding a set of power steering device to the mechanical steering system. However, as people continuously explore the unmanned technology, the power-assisted steering structure cannot meet the technical development requirements of the future intelligent vehicle.
Therefore, steer-by-wire systems have been developed. The automobile steer-by-wire system cancels the mechanical connection between a steering wheel and a steering wheel, realizes steering completely by electric transmission, gets rid of various limitations of the traditional steering system, not only can freely design the force transmission characteristic of automobile steering, but also can design the angle transmission characteristic of the automobile steering, and brings huge space for the design of the automobile steering characteristic.
SUMMERY OF THE UTILITY MODEL
The utility model relates to a developed an integrated form wheel assembly with redundant steer-by-wire mechanism, considered its mechanical structure's redundancy emphatically, improved the vehicle security of traveling.
An integrated wheel assembly with redundant steer-by-wire comprising:
an upper swing arm and a knuckle of the suspension;
a redundant steering motor fixed to the vehicle body;
the upper end of the first ball pin is matched with a ball head of the upper swing arm of the suspension, and the lower end of the first ball pin is matched with the upper end of the steering knuckle through a flat key or a spline;
the first bevel gear is sleeved on the rod part and is matched with the rod part of the first ball pin through a flat key or a spline;
the second bevel gear is connected to an output shaft of the redundant steering motor through a universal joint; the second bevel gear is meshed with the first bevel gear.
More preferably, the method further comprises the following steps:
the speed reducer bracket is fixed at the lower part of the rod part of the first ball pin through a bearing;
and the gear shaft bracket is fixedly arranged on the reducer bracket, and the shaft of the second bevel gear is rotatably supported in the hole of the gear shaft bracket.
More preferably, the method further comprises the following steps: and the first nut is sleeved on the first ball stud and fixed at the lower end of the first bevel gear.
More preferably, the method further comprises the following steps: and the second nut is sleeved on the first ball stud and fixed at the lower end of the speed reducer bracket.
More preferably, the method further comprises the following steps:
a suspension lower swing arm;
the reduction box is supported on the lower swing arm of the suspension through a second ball pin; the output shaft of the reduction gearbox is matched with the lower end of the steering knuckle through a flat key or a spline;
the motor bracket is fixed on the shell of the reduction gearbox;
and the main steering motor is fixed on the motor support, and an output shaft of the main steering motor is connected with the reduction gearbox through a coupling.
More preferably, the method further comprises the following steps: and one end of the shock absorber is supported on the suspension lower swing arm, and the other end of the shock absorber is supported on the vehicle body.
Beneficial effect:
1. the system integration level is high, and drive, turn to, braking system integration in an assembly module, simple structure.
2. The steer-by-wire system cancels the mechanical connection among all the components, adopts electric signals to link all the components, and is convenient for the intelligent development of the future automobile.
3. The main steering motor and the redundant steering motor are respectively arranged, so that the backup of a mechanical structure is realized, and when the main steering motor fails, the redundant steering motor works, so that the running safety of the vehicle is improved.
Drawings
Fig. 1 is a schematic diagram of an integrated wheel module with redundant steer-by-wire mechanism according to the present invention;
fig. 2 is a schematic view of a knuckle for an integrated wheel module with redundant steer-by-wire.
Fig. 3 is a schematic diagram of a customized ball stud for an integrated wheel module with redundant steer-by-wire.
Fig. 4 is an assembly schematic diagram of a bevel gear shaft, a bevel gear shaft bracket and a reducer bracket of an integrated wheel module with a redundant steer-by-wire mechanism according to the present invention.
1. The brake comprises an electric wheel, 2, a brake caliper, 3, a reducer bracket, 4, a bevel gear, 5, a ball pin, 6, two nuts, 7, a bevel gear shaft, 8, a bevel gear shaft bracket, 9, a universal joint, 10, an upper cross arm, 11, a redundant steering motor, 12, a spring shock absorber, 13, a main steering motor, 14, a main steering motor bracket, 15, a lower cross arm, 16, two ball pins, 17, a reduction gearbox, 18, a nut, 19, a steering knuckle, 20, a brake disc, 21, a first connecting hole, 22, two second connecting holes, 23, a third connecting hole, 24, a fourth connecting hole, 25, a key groove, 26, a vertical shaft, 27, a bevel gear shaft, 28, a bevel gear shaft bracket and 29, and a bearing.
Detailed Description
The present invention is further described in detail below with reference to the drawings so that those skilled in the art can implement the invention with reference to the description.
As shown in fig. 1 to 4, in order to achieve the above-mentioned functions, the present invention provides an integrated wheel assembly with a redundant steer-by-wire mechanism.
In the figure, a motor shaft of the electric wheel 1 is matched and connected with a fourth connecting hole 24 of the steering knuckle 19 through flat key matching, and the tail end of the motor shaft of the electric wheel 1 is provided with threads and is fastened and limited through a nut 18. The brake disk 20 is fixed to a motor housing of the electric wheel 1 by a bolt and rotates as the electric wheel 1 rotates. The brake caliper 2 is fixed to the knuckle 19 at two second attachment holes 22 by bolting. The ball stud 5 is fitted into the first connection hole 21 of the knuckle 19 and is fitted through a flat key. The bevel gear 4 is sleeved on a vertical shaft 26 of the ball stud 5, connected through a flat key in the key groove 25 and limited and fixed by the nut 6. A bearing 29 is arranged in a bulge of the speed reducer bracket 3, the upper edge of the bearing 29 is limited by a stepped shaft of the vertical shaft 26, and the lower edge of the bearing is fixed by a nut 6. The bevel gear shaft support 8 is fixed on the speed reducer support 3, the bevel gear shaft 7 is sleeved in the bevel gear shaft support 8, and the bevel gear 4 is meshed with the bevel gear shaft 7. The redundant steering motor 11 is fixed on the vehicle body, and a motor shaft of the redundant steering motor is connected with the bevel gear shaft 7 through the universal joint 9 to realize transmission. One end of the upper cross arm 10 is connected with a steering knuckle 19 through a ball stud 5, and the other end is hinged with a vehicle body. An output shaft of the reduction gearbox 17 penetrates through a third connecting hole 23 of the steering knuckle 19, and the lower end of the output shaft is fixed and limited through a nut, so that relative rotation with the steering knuckle 19 is realized. The main steering motor 13 is fixed on the shell of the reduction gearbox 17 through a main steering motor bracket 14, and the power is output to the reduction gearbox through a coupler. One end of the lower cross arm 15 is hinged with a reduction gearbox 17 through two ball pins 16, and the other end is hinged with a vehicle body. One end of the spring damper 12 is provided on the lower cross arm 15.
An integrated wheel module with redundant steer-by-wire of the present invention is described in detail below with reference to fig. 1:
referring to fig. 1, when a driver intends to steer the vehicle and the main steering motor 13 normally works, the power of the main steering motor 13 is output through the reduction gearbox 17 and transmitted to the steering knuckle 19, and the output shaft of the reduction gearbox 17 drives the steering knuckle 19 to rotate, so that the steering of the wheels is realized. The redundant steering motor 11 is not active at this time. When the main steering motor 13 fails, the redundant steering motor 11 works, power is transmitted to the bevel gear shaft 7 through the universal joint 9, and the bevel gear shaft support 8 ensures that the bevel gear shaft 7 can rotate in the bevel gear shaft and plays a role in supporting. The bevel gear shaft 7 transmits power to the bevel gear 4, the direction of which is changed by 90 °. Because the bevel gear 4 and the steering knuckle 19 are respectively matched with the ball pin 5 through flat keys, the rotation of the bevel gear can drive the steering knuckle to rotate, and therefore the steering of the wheel is achieved. The bearing 29 arranged in the bulge of the speed reducer bracket 3 can ensure the relative rotation between the speed reducer bracket and the vertical shaft 26 of the ball stud 5. The ball stud 5 and the two ball studs 16 enable the wheel to jump up and down when the vehicle is travelling on uneven road surfaces. The angle between the motor shaft of the redundant steering motor 11 and the bevel gear shaft 7 changes, and the universal joint 9 can ensure the steering power transmission.
While the embodiments of the invention have been described above, it is not intended to be limited to the details shown, or described, but rather to cover all modifications, which would come within the scope of the appended claims, and all changes which come within the meaning and range of equivalency of the art are therefore intended to be embraced therein.
Claims (6)
1. An integrated wheel assembly with redundant steer-by-wire, comprising:
an upper swing arm and a knuckle of the suspension;
a redundant steering motor fixed to the vehicle body;
the upper end of the first ball pin is matched with a ball head of the upper swing arm of the suspension, and the lower end of the first ball pin is matched with the upper end of the steering knuckle through a flat key or a spline;
the first bevel gear is sleeved on the rod part and is matched with the rod part of the first ball pin through a flat key or a spline;
the second bevel gear is connected to an output shaft of the redundant steering motor through a universal joint; the second bevel gear is meshed with the first bevel gear.
2. The integrated wheel assembly with redundant steer-by-wire of claim 1, further comprising:
the speed reducer bracket is fixed at the lower part of the rod part of the first ball pin through a bearing;
and the gear shaft bracket is fixedly arranged on the reducer bracket, and the shaft of the second bevel gear is rotatably supported in the hole of the gear shaft bracket.
3. The integrated wheel assembly with redundant steer-by-wire of claim 1, further comprising: and the first nut is sleeved on the first ball stud and fixed at the lower end of the first bevel gear.
4. The integrated wheel assembly with redundant steer-by-wire of claim 2, further comprising: and the second nut is sleeved on the first ball stud and fixed at the lower end of the speed reducer bracket.
5. The integrated wheel assembly with redundant steer-by-wire of claim 1, 2, 3 or 4, further comprising:
a suspension lower swing arm;
the reduction box is supported on the lower swing arm of the suspension through a second ball pin; the output shaft of the reduction gearbox is matched with the lower end of the steering knuckle through a flat key or a spline;
the motor bracket is fixed on the shell of the reduction gearbox;
and the main steering motor is fixed on the motor support, and an output shaft of the main steering motor is connected with the reduction gearbox through a coupling.
6. The integrated wheel assembly with redundant steer-by-wire of claim 5, further comprising: and one end of the shock absorber is supported on the suspension lower swing arm, and the other end of the shock absorber is supported on the vehicle body.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021792619.8U CN212738263U (en) | 2020-08-25 | 2020-08-25 | Integrated wheel assembly with redundant steer-by-wire mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021792619.8U CN212738263U (en) | 2020-08-25 | 2020-08-25 | Integrated wheel assembly with redundant steer-by-wire mechanism |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212738263U true CN212738263U (en) | 2021-03-19 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021792619.8U Expired - Fee Related CN212738263U (en) | 2020-08-25 | 2020-08-25 | Integrated wheel assembly with redundant steer-by-wire mechanism |
Country Status (1)
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|---|---|
| CN (1) | CN212738263U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113524999A (en) * | 2021-09-07 | 2021-10-22 | 吉林大学 | Double-cross-arm suspension integrated with steering mechanism |
| CN113690701A (en) * | 2021-07-21 | 2021-11-23 | 长城信息股份有限公司 | Rotary spacing and hidden wiring type universal joint connector |
| CN113815722A (en) * | 2021-11-11 | 2021-12-21 | 吉林大学 | Double-motor steering mechanism and redundancy control method thereof |
| CN114179605A (en) * | 2021-12-29 | 2022-03-15 | 吉林大学 | Motor redundancy multifunctional integrated wheel module and control method thereof |
-
2020
- 2020-08-25 CN CN202021792619.8U patent/CN212738263U/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113690701A (en) * | 2021-07-21 | 2021-11-23 | 长城信息股份有限公司 | Rotary spacing and hidden wiring type universal joint connector |
| CN113690701B (en) * | 2021-07-21 | 2024-05-31 | 长城信息股份有限公司 | Rotary limiting and concealed wiring type universal joint connector |
| CN113524999A (en) * | 2021-09-07 | 2021-10-22 | 吉林大学 | Double-cross-arm suspension integrated with steering mechanism |
| CN113815722A (en) * | 2021-11-11 | 2021-12-21 | 吉林大学 | Double-motor steering mechanism and redundancy control method thereof |
| CN114179605A (en) * | 2021-12-29 | 2022-03-15 | 吉林大学 | Motor redundancy multifunctional integrated wheel module and control method thereof |
| CN114179605B (en) * | 2021-12-29 | 2024-03-01 | 吉林大学 | Multifunctional integrated wheel module with motor redundancy and control method thereof |
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| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20210319 Termination date: 20210825 |