CN206217992U - Automobile steer-by-wire system - Google Patents
Automobile steer-by-wire system Download PDFInfo
- Publication number
- CN206217992U CN206217992U CN201621263500.5U CN201621263500U CN206217992U CN 206217992 U CN206217992 U CN 206217992U CN 201621263500 U CN201621263500 U CN 201621263500U CN 206217992 U CN206217992 U CN 206217992U
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- Prior art keywords
- steering
- connecting shaft
- automobile
- ferromagnetic ring
- control mechanism
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- 230000001702 transmitter Effects 0.000 claims abstract description 11
- 230000005294 ferromagnetic Effects 0.000 claims description 33
- 229910000831 Steel Inorganic materials 0.000 claims description 20
- 239000010959 steel Substances 0.000 claims description 20
- 230000005389 magnetism Effects 0.000 claims description 16
- 230000005291 magnetic Effects 0.000 claims description 9
- 230000005540 biological transmission Effects 0.000 claims description 5
- 239000000203 mixture Substances 0.000 claims description 2
- 230000005611 electricity Effects 0.000 claims 1
- 238000005516 engineering process Methods 0.000 description 4
- 230000000875 corresponding Effects 0.000 description 3
- 210000003414 Extremities Anatomy 0.000 description 1
- 206010022114 Injury Diseases 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000006011 modification reaction Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Abstract
The utility model discloses a kind of automobile steer-by-wire system, it includes steering column, electrical control mechanism and mechanical control mechanism, electrical control mechanism includes rotary angle transmitter, steering ECU, steering motor and piston, one end of piston is connected with the left lever of automobile, the other end is connected with the output shaft of steering motor, and the output shaft of steering motor is connected with the right pull bar of automobile；Mechanical control mechanism includes jackshaft and clutch controller, and one end connection steering column of jackshaft, the other end is connected with clutch controller, and steering ECU is electrically connected with clutch controller, to control the connection of clutch controller and to disengage.The utility model has two steering control systems of electrical control mechanism and mechanical mechanism, in electronic unit normal work, turned to using electrical control mechanism, after electronic unit breaks down, mechanical mechanism is then switched to be turned to, most basic turning function is realized in guarantee, improves the reliability and security of whole steering.
Description
Technical field
The utility model is related to a kind of automobile steer-by-wire system, belongs to Automotive Steering Technology field.
Background technology
Wire-controlled steering system (Steering-by-Wire System, abbreviation SBW system) is used as the steering system of latest generation
System, compared with conventional steering system, with obvious technical advantage.Wire-controlled steering system is eliminated between steering wheel and deflecting roller
Mechanical connection, reduce the impact on road surface, reduce noise, injury of the steering column to driver when eliminating collision, increase
Driver's leg movements spaces, improve driving comfort.During Vehicular turn, traditional mechanical connection is no longer rely on, but
It is controlled by three groups of electronic control units (ECU), dynamics is rotated according to traveling road conditions and steering wheel, speed carries out comprehensive meter
Calculate, so as to command steering motor mechanism to realize turning to.
At present, electronic unit is also not reaching to mechanical part reliable degree like that, how to ensure occurring in electronic unit
After failure, system remains to realize the turning function that its is most basic, i.e., how to ensure reliable and stable, the safe work of electric steering system
Work is highly important, and this is also electric steering system presently the most distinct issues, is also to obstruct wire-controlled steering system popularization
A key factor.
The content of the invention
Technical problem to be solved in the utility model is：Overcome the deficiencies in the prior art, there is provided a kind of automobile line traffic control turns
To system, it controls ingenious combination by automatically controlled with tradition machinery formula, it is ensured that after electronic unit failure, system remains to reality
Existing its most basic turning function, improves the reliability and security of whole steering.
In order to solve the above-mentioned technical problem, the technical solution of the utility model is：A kind of automobile steer-by-wire system, it is wrapped
Steering column, electrical control mechanism and mechanical control mechanism are included, the electrical control mechanism includes rotary angle transmitter, steering ECU, turns to
Motor and piston, the rotary angle transmitter are arranged on steering column, and rotary angle transmitter, steering ECU, steering motor are successively
Electrical connection, one end of piston is connected with the left lever of automobile, and the other end is connected with the output shaft of steering motor, steering motor it is defeated
Shaft is connected with the right pull bar of automobile；The mechanical control mechanism includes jackshaft and clutch controller, and one end of jackshaft connects
Steering column is connect, the other end is connected with clutch controller, clutch controller controls the left and right pull bar of automobile by gear structure
Turn to, the steering ECU is electrically connected with clutch controller, to control the connection of clutch controller and to disengage.
Further, the clutch controller includes upper connecting shaft, permanent magnetism ferromagnetic ring, electromagnetism ferromagnetic ring and lower connecting shaft group
Into permanent magnetism ferromagnetic ring is fixed on the lower end of connecting shaft, and electromagnetism ferromagnetic ring is fixed on the upper end of lower connecting shaft, steering ECU
The pole orientation of electromagnetism ferromagnetic ring is controlled, to change the magnetic force direction of permanent magnetism ferromagnetic ring and electromagnetism ferromagnetic ring, makes connecting shaft
It is connected or disengages with lower connecting shaft.
Further, the permanent magnetism ferromagnetic ring and electromagnetism ferromagnetic ring are all divided into four parts, and tetrameric structure is one by one
Correspondence, S grades therein and N grades is that oblique angle direction is symmetrical.
Further, the upper end of the lower connecting shaft is inserted in the inner chamber of connecting shaft lower end, and by being arranged at inner chamber
Spline be connected with the upper end of lower connecting shaft.
Further, the lower end of the jackshaft is provided with universal-joint fork, has spline on universal-joint fork, the upper connecting shaft
The universal-joint fork of jackshaft lower end is inserted and by above-mentioned spline connection in upper end, so that upper connecting shaft can be in the presence of magnetic force
Moved up and down along universal-joint fork inner chamber.
Further, the output shaft of the steering motor is provided with steel ball loose slot, and steel ball is provided with steel ball loose slot, living
The piston steel-ball groove matched with output shaft also is provided with plug endoporus.
Further, torque motor is also equipped with the steering column, to produce the aligning torque of steering wheel.
After employing above-mentioned technical proposal, the utility model has two steering control systems of electrical control mechanism and mechanical mechanism
System, in electronic unit normal work, is turned to using electrical control mechanism, after electronic unit breaks down, is then switched to mechanical machine
Structure is turned to, it is ensured that realize most basic turning function, improves the reliability and security of whole steering；This practicality
It is new to combine electrical control mechanism is ingenious with traditional mechanical mechanism, it is ensured that after electronic unit failure, system is still
Its most basic turning function can be realized；In addition, the utility model achieves one preferably also between reliability and cost
Balance, also alleviates the relatively costly problem for being difficult to the marketization of Fault Tolerance Control Technology to a certain extent, reduces its city
The difficulty that field is promoted.
Brief description of the drawings
Fig. 1 is overall structure diagram of the present utility model；
Fig. 2 is the profile that piston of the present utility model is connected with steering motor；
Fig. 3 is the section of structure (mechanical steering situation) of spline of the present utility model and clutch controller；
Fig. 4 is the A-A profiles of Fig. 3；
Fig. 5 is the B-B profiles of Fig. 3；
Fig. 6 is the C-C profiles of Fig. 3；
Fig. 7 is the section of structure (automatically controlled steering situation) of spline of the present utility model and clutch controller；
Fig. 8 is the D-D profiles of Fig. 7；
In figure, 1, left lever, 2, piston, 21, piston steel-ball groove, 3, steering ECU, 4, rotary angle transmitter, 5, direction
Disk, 6, steering column, 7, steering motor, 8, jackshaft, 9, clutch controller, 91, universal-joint fork, 92, upper connecting shaft, 93, forever
Magnet magnet ring, 94, electromagnetism ferromagnetic ring, 95, lower connecting shaft, 96, spline, 10, little gear, 11, right pull bar, 12, steering rack,
13rd, steering motor, 131, output shaft, 1311, steel ball loose slot, 15, steel ball.
Specific embodiment
In order that content of the present utility model is easier to be clearly understood, below according to specific embodiment and with reference to attached
Figure, is described in further detail to the utility model.
As shown in figure 1, a kind of automobile steer-by-wire system, it includes steering column 6, electrical control mechanism and mechanical controller
Structure, the electrical control mechanism includes rotary angle transmitter 4, steering ECU3, steering motor 7 and piston 2, the rotary angle transmitter 4
On steering column 6, rotary angle transmitter 4, steering ECU3, steering motor 13 are sequentially connected electrically, one end of piston 2 with
The left lever 1 of automobile is connected, and the other end is connected with the output shaft of steering motor 13, the output shaft of steering motor 13 and the right side of automobile
Pull bar 11 is connected；The mechanical control mechanism includes jackshaft 8 and clutch controller 9, one end connection steering column of jackshaft 8
6, the other end is connected with clutch controller 9, and clutch controller 9 controls the steering of the left and right pull bar of automobile, institute by gear structure
State steering ECU3 to be electrically connected with clutch controller 9, to control the connection of clutch controller 9 and to disengage.
Preferably, as shown in Figures 3 to 8, the clutch controller 9 includes upper connecting shaft 92, permanent magnetism ferromagnetic ring 93, electromagnetism
Ferromagnetic ring 94 and lower connecting shaft 95 are constituted, and permanent magnetism ferromagnetic ring 93 is fixed on the lower end of connecting shaft 92, and electromagnetism ferromagnetic ring 94 is fixed
In the upper end of lower connecting shaft 95, the pole orientation of steering ECU control electromagnetism ferromagnetic ring 94, to change permanent magnetism ferromagnetic ring 93
With the magnetic force direction of electromagnetism ferromagnetic ring 94, connecting shaft 92 is set to be connected or disengage with lower connecting shaft 95.
Preferably, as shown in Figure 5, Figure 6, the permanent magnetism ferromagnetic ring 93 and electromagnetism ferromagnetic ring 94 are all divided into four parts, and
And tetrameric structure is corresponded, S grades therein and N grades is that oblique angle direction is symmetrical.
Preferably, as shown in Figure 5, Figure 6, the upper end of the lower connecting shaft 95 is inserted in the inner chamber of the lower end of connecting shaft 92,
And be connected with the upper end of lower connecting shaft 95 by being arranged on the spline 96 at inner chamber.
Preferably, as shown in Figure 3, Figure 4, the lower end of the jackshaft 8 is provided with universal-joint fork 91, has on universal-joint fork 91
The universal-joint fork 91 of jackshaft lower end is inserted and by above-mentioned spline connection in spline, the upper end of the upper connecting shaft 92, so as to upper
Connecting shaft 92 can move up and down in the presence of magnetic force along the inner chamber of universal-joint fork 91.
Alternatively, as shown in Fig. 2 the output shaft 131 of the steering motor 13 is provided with steel ball loose slot 1311, steel ball is lived
Is provided with steel ball 15 in dynamic groove 1311, also be provided with being engaged with steel ball loose slot 1311 on the endoporus of piston 2 will pass through steel ball
The piston steel-ball groove 21 of 15 transmissions；Steering motor 13 is rotated, and power is passed from output shaft 131 via steel ball and steel ball loose slot 1311
The steel ball in piston steel-ball groove 21 is passed, and band piston 2 is moved left and right, piston 2 imparts power to left and right pull bar and is turned
To steel ball loose slot 1311 and steel ball 15 play a part of transmission, are oriented to and reduce friction.
Specifically, the lower end of clutch controller 9 is connected with a little gear 10, and steering motor 13 is provided with steering rack, small
The direct engaging of steering rack 12 in gear 10 and steering motor 13 transmission in a pair, drives left and right pull bar, is turned to.
Alternatively, as shown in figure 1, being also equipped with torque motor 7 on the steering column 6, to produce returning just for steering wheel 5
Torque.
Operation principle of the present utility model is as follows：
When steering wheel 5 is rotated, the driver that rotary angle transmitter 4 will be measured turns to intention and is transformed into data signal input
To steering ECU3, steering ECU3 is analyzed treatment to the signal for gathering, and differentiates the motion state of automobile, and to turn
Sent to motor 13 and ordered, control steering motor 13, with the knuckle arm on motor car wheel, is gone to by left lever 1 and right pull bar 11
It is required that front wheel angle, complete driver steering be intended to, realize the steering of wheel；Control moment motor 7 rotates simultaneously, produces
The aligning torque of steering wheel 5, corresponding road feel information is provided to driver；
Specifically, as shown in Figure 7 and Figure 8, after opening ignition switch, automobile is in transport condition, now steering
ECU3 output signals, electromagnetism ferromagnetic ring 94 is powered, and its electromagnet poles is identical with the corresponding magnetic pole of permanent magnetism ferromagnetic ring 93 respectively, the same sex
Repel each other, under the magneticaction of permanent magnetism ferromagnetic ring 93, permanent magnetism ferromagnetic ring 93 drives upper connecting shaft 92 upwards along universal-joint fork 91
Inner chamber is moved, and the inner chamber of the lower end of upper connecting shaft 92 disengages with the top of lower connecting shaft 95, is now in automatically controlled steering work
Pattern, now, mechanical control mechanism does not work；
As shown in Fig. 3,5,6, when automobile is in not actuated or vehicle the extremity of power-off occurs, lighted a fire when opening
Switch, after automobile starting, the no power of electromagnetism ferromagnetic ring 94, its electromagnet poles magnetic pole phase corresponding with permanent magnetism ferromagnetic ring 93 respectively
Instead, there is a natural attraction between the sexes, and in the presence of gravity and magnetic force, the top of lower connecting shaft 95 is with the inner chamber of the lower end of upper connecting shaft 92 by flower
Key 96 links together, and now steering reverts to mechanical steering mode of operation, turning in little gear 10 and steering motor 13
To the direct engaging of tooth bar transmission in a pair, the steering force of driver passes through steering wheel 5, steering column 6, jackshaft 8
Little gear 10 is passed to clutch controller 9, and is driven by steering rack, drive left and right pull bar, turned to.
The utility model has two steering control systems of electrical control mechanism and mechanical mechanism, in electronic unit normal work
When, turned to using electrical control mechanism, after electronic unit breaks down, then it is switched to mechanical mechanism and is turned to, it is ensured that realizes most
Basic turning function, improves the reliability and security of whole steering；The utility model by electrical control mechanism with tradition
Mechanical mechanism ingenious combine, it is ensured that after electronic unit failure, system remains to realize the steering that its is most basic
Function；In addition, the utility model achieves a preferably balance also between reliability and cost, also delay to a certain extent
The relatively costly problem for being difficult to the marketization of Fault Tolerance Control Technology has been solved, the difficulty of its marketing has been reduced.
Particular embodiments described above, the technical problem solved to the utility model, technical scheme and beneficial effect are entered
Go further description, should be understood that and the foregoing is only specific embodiment of the utility model, and without
It is all within spirit of the present utility model and principle in limitation the utility model, any modification, equivalent substitution and improvements done
Deng should be included within protection domain of the present utility model.
Claims (7)
1. a kind of automobile steer-by-wire system, it is characterised in that：It includes steering column (6), electrical control mechanism and mechanical controller
Structure, the electrical control mechanism includes rotary angle transmitter (4), steering ECU (3), steering motor (7) and piston (2), the corner
Sensor (4) is on steering column (6), and rotary angle transmitter (4), steering ECU (3), steering motor (13) are electric successively
Connection, one end of piston (2) is connected with the left lever (1) of automobile, and the other end is connected with the output shaft of steering motor (13), turns to
The output shaft of motor (13) is connected with the right pull bar (11) of automobile；The mechanical control mechanism includes jackshaft (8) and clutch control
Device (9) processed, one end of jackshaft (8) connects steering column (6), and the other end is connected with clutch controller (9), clutch controller
(9) steering of the left and right pull bar of automobile is controlled by gear structure, the steering ECU (3) is electrically connected with clutch controller (9)
Connect, to control the connection of clutch controller (9) and to disengage.
2. automobile steer-by-wire system according to claim 1, it is characterised in that：The clutch controller (9) is including upper
Connecting shaft (92), permanent magnetism ferromagnetic ring (93), electromagnetism ferromagnetic ring (94) and lower connecting shaft (95) composition, permanent magnetism ferromagnetic ring (93) are fixed
In the lower end of upper connecting shaft (92), electromagnetism ferromagnetic ring (94) is fixed on the upper end of lower connecting shaft (95), steering ECU control electricity
The pole orientation of magnet magnet ring (94), to change the magnetic force direction of permanent magnetism ferromagnetic ring (93) and electromagnetism ferromagnetic ring (94), makes
Connecting shaft (92) is connected or disengages with lower connecting shaft (95).
3. automobile steer-by-wire system according to claim 2, it is characterised in that：The permanent magnetism ferromagnetic ring (93) and electromagnetism
Ferromagnetic ring (94) is all divided into four parts, and tetrameric structure is corresponded, and S grades therein and N grades is oblique angle direction pair
Claim.
4. automobile steer-by-wire system according to claim 3, it is characterised in that：Insert the upper end of the lower connecting shaft (95)
In the inner chamber of upper connecting shaft (92) lower end, and connected with the upper end of lower connecting shaft (95) by being arranged on the spline (96) at inner chamber
Connect.
5. the automobile steer-by-wire system according to Claims 2 or 3 or 4, it is characterised in that：Under the jackshaft (8)
End is provided with universal-joint fork (91), and jackshaft (8) is inserted in the upper end on universal-joint fork (91) with spline, the upper connecting shaft (92)
The universal-joint fork (91) of lower end and by above-mentioned spline connection, so that upper connecting shaft (92) can be in the presence of magnetic force along ten thousand
Moved up and down to section fork (91) inner chamber.
6. automobile steer-by-wire system according to claim 1, it is characterised in that：The output shaft of the steering motor (13)
(131) it is provided with steel ball loose slot (1311), steel ball loose slot (1311) and is provided with steel ball (15), on piston (2) endoporus
It is provided with the piston steel-ball groove (21) will pass through steel ball (15) transmission being engaged with steel ball loose slot (1311).
7. automobile steer-by-wire system according to claim 1, it is characterised in that：Also installed on the steering column (6)
Strong torque motor (7), to produce the aligning torque of steering wheel (5).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621263500.5U CN206217992U (en) | 2016-11-23 | 2016-11-23 | Automobile steer-by-wire system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621263500.5U CN206217992U (en) | 2016-11-23 | 2016-11-23 | Automobile steer-by-wire system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206217992U true CN206217992U (en) | 2017-06-06 |
Family
ID=58791506
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621263500.5U Expired - Fee Related CN206217992U (en) | 2016-11-23 | 2016-11-23 | Automobile steer-by-wire system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206217992U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106428191A (en) * | 2016-11-23 | 2017-02-22 | 常州机电职业技术学院 | Automobile steering-by-wire system |
| CN110104057A (en) * | 2019-04-24 | 2019-08-09 | 浙江吉利控股集团有限公司 | Vehicular turn power assist control method, device, equipment and storage medium |
| CN113212545A (en) * | 2021-04-22 | 2021-08-06 | 中煤科工开采研究院有限公司 | Electric power steering device for explosion-proof rubber-tyred vehicle |
-
2016
- 2016-11-23 CN CN201621263500.5U patent/CN206217992U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106428191A (en) * | 2016-11-23 | 2017-02-22 | 常州机电职业技术学院 | Automobile steering-by-wire system |
| CN110104057A (en) * | 2019-04-24 | 2019-08-09 | 浙江吉利控股集团有限公司 | Vehicular turn power assist control method, device, equipment and storage medium |
| CN113212545A (en) * | 2021-04-22 | 2021-08-06 | 中煤科工开采研究院有限公司 | Electric power steering device for explosion-proof rubber-tyred vehicle |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20170606 Termination date: 20201123 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |