CN117549956A - Steering column is adjusted to drive-by-wire steering long stroke - Google Patents
Steering column is adjusted to drive-by-wire steering long stroke Download PDFInfo
- Publication number
- CN117549956A CN117549956A CN202210938787.0A CN202210938787A CN117549956A CN 117549956 A CN117549956 A CN 117549956A CN 202210938787 A CN202210938787 A CN 202210938787A CN 117549956 A CN117549956 A CN 117549956A
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- steering
- column
- length adjustment
- steering column
- screw
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- 230000007246 mechanism Effects 0.000 claims abstract description 68
- 238000000034 method Methods 0.000 claims description 5
- 230000008569 process Effects 0.000 claims description 5
- 238000005452 bending Methods 0.000 claims 1
- 230000009347 mechanical transmission Effects 0.000 abstract description 2
- 238000010586 diagram Methods 0.000 description 6
- 230000005540 biological transmission Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000008092 positive effect Effects 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 230000004044 response Effects 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 230000007704 transition Effects 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
- B62D—MOTOR VEHICLES; TRAILERS
- B62D1/00—Steering controls, i.e. means for initiating a change of direction of the vehicle
- B62D1/02—Steering controls, i.e. means for initiating a change of direction of the vehicle vehicle-mounted
- B62D1/16—Steering columns
- B62D1/18—Steering columns yieldable or adjustable, e.g. tiltable
- B62D1/185—Steering columns yieldable or adjustable, e.g. tiltable adjustable by axial displacement, e.g. telescopically
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
- B62D—MOTOR VEHICLES; TRAILERS
- B62D1/00—Steering controls, i.e. means for initiating a change of direction of the vehicle
- B62D1/02—Steering controls, i.e. means for initiating a change of direction of the vehicle vehicle-mounted
- B62D1/16—Steering columns
- B62D1/18—Steering columns yieldable or adjustable, e.g. tiltable
- B62D1/181—Steering columns yieldable or adjustable, e.g. tiltable with power actuated adjustment, e.g. with position memory
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
- B62D—MOTOR VEHICLES; TRAILERS
- B62D1/00—Steering controls, i.e. means for initiating a change of direction of the vehicle
- B62D1/02—Steering controls, i.e. means for initiating a change of direction of the vehicle vehicle-mounted
- B62D1/16—Steering columns
- B62D1/18—Steering columns yieldable or adjustable, e.g. tiltable
- B62D1/187—Steering columns yieldable or adjustable, e.g. tiltable with tilt adjustment; with tilt and axial adjustment
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
- B62D—MOTOR VEHICLES; TRAILERS
- B62D1/00—Steering controls, i.e. means for initiating a change of direction of the vehicle
- B62D1/02—Steering controls, i.e. means for initiating a change of direction of the vehicle vehicle-mounted
- B62D1/16—Steering columns
- B62D1/18—Steering columns yieldable or adjustable, e.g. tiltable
- B62D1/19—Steering columns yieldable or adjustable, e.g. tiltable incorporating energy-absorbing arrangements, e.g. by being yieldable or collapsible
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
- B62D—MOTOR VEHICLES; TRAILERS
- B62D6/00—Arrangements for automatically controlling steering depending on driving conditions sensed and responded to, e.g. control circuits
- B62D6/008—Control of feed-back to the steering input member, e.g. simulating road feel in steer-by-wire applications
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Transportation (AREA)
- Mechanical Engineering (AREA)
- Steering Controls (AREA)
Abstract
The invention relates to a steer-by-wire long travel adjustment steering column comprising: steering mechanism, length adjustment mechanism, angle adjustment mechanism and road sense control module, steering mechanism installs on length adjustment mechanism, and steering mechanism includes: steering tube, interior tubular column, bearing, length adjustment mechanism are used for the length adjustment of steering column, and length adjustment mechanism includes: steering column casing, interior tubular column, length adjustment motor, length adjustment support, length adjustment hold support, first lead screw, first screw and energy-absorbing piece, angle adjustment mechanism are used for adjusting the angle of steering column, and angle adjustment mechanism includes: the device comprises an angle adjusting motor, an angle adjusting bracket, an angle adjusting holding bracket, a top connecting bracket, a second lead screw and a second nut; the invention has the advantages that: the intermediate shaft connected between the traditional steering column and the steering gear is omitted, mechanical transmission is replaced by electric signal control, the arrangement space of the steering column is effectively increased, and the adjusting range of the steering column is obviously enlarged.
Description
Technical Field
The invention relates to the technical field of automobile steering columns, in particular to a steering-by-wire long-stroke adjusting steering column.
Background
The automobile steering system is direct equipment for realizing automobile steering control, plays a vital role in the field of automobile active safety, and simultaneously, the quality of the performance of the automobile steering system directly determines steering feeling of a driver and the active safety of an automobile.
An automotive steering column is an element of an automotive steering system that connects a steering wheel and a steering gear, and primarily functions to transmit torque. Through the steering column, the driver transmits torque to the steering gear to drive the steering gear to realize steering. The steering is realized through jackshaft connection steering gear to traditional steering column, but because the arrangement occupation space of jackshaft is great for the steering column receives the space restriction big, thereby influences the adjustable scope of steering column, and traditional steering column adjustable adjusting scope is only + -30 mm, for example chinese patent CN 112208623a, discloses a power steering system with retractable steering column, including the steering column, the steering column is integrated with: an upper shaft and a steering shaft coaxial along a main axis, rotationally connected to each other and axially translationally movable relative to each other; however, the length of the steering column is related to the adjustment stroke, and the longer the adjustment stroke of the steering column, the longer the total length required for the steering column, that is, the larger the required whole vehicle layout space.
Disclosure of Invention
In view of the above problems, an object of the present invention is to provide a steering-by-wire long-stroke adjustment steering column, which replaces the conventional intermediate shaft connection by a wire-by-wire manner, and creates more layout space for the steering column by simulating the road feel through a road feel control module, thereby greatly increasing the adjustment stroke of the steering column to overcome the defects of the prior art.
The invention provides a steering-by-wire long-stroke adjusting steering column, which comprises a steering mechanism, an angle adjusting mechanism and a length adjusting mechanism, wherein the steering mechanism is arranged on the length adjusting mechanism;
the steering mechanism includes: the steering tube is sleeved in the inner tube column, and is rotationally connected with the inner tube column through the bearing, and the bearing is limited in the inner tube column;
the steering device comprises a steering wheel, a steering shaft, a steering wheel, a steering control module, a steering shaft, a steering pipe, a steering control module and a steering pipe, wherein the steering wheel is connected with the steering wheel through the steering control module, the steering control module is used for receiving road surface signals fed back by the steering wheel to simulate road feel and then transmitting the road feel to the steering wheel, the steering shaft at the output end of the steering control module is sleeved in the steering pipe, one end of the steering shaft is connected with the steering control module, the other end of the steering shaft is connected with the steering pipe, the steering pipe drives the steering shaft to rotate, and the steering pipe can slide back and forth along the steering shaft.
As a preferred aspect of the present invention, the length adjustment mechanism is for length adjustment of a steering column, and the length adjustment mechanism includes: the steering column comprises a steering column shell, an inner column body, a length adjusting motor, a length adjusting bracket, a length adjusting retaining bracket, a first screw rod, a first screw nut and an energy absorbing sheet, wherein the inner column body is slidably connected in the steering column shell;
as a preferred aspect of the present invention, the angle adjustment mechanism is for adjusting an angle of a steering column, and the angle adjustment mechanism includes: the angle adjusting motor is rotationally connected to the steering column shell, the angle adjusting support is rotationally connected to the front end of the top connecting support, the tail end of the top connecting support is hinged to the steering column shell, the angle adjusting support is hinged to the steering column shell, the second screw is parallel to the first screw, the second screw is connected with the angle adjusting motor, the second screw is sleeved on the second screw, the angle adjusting support is fixedly connected to the angle adjusting support, a hinge seat hinged to the second screw is formed between the angle adjusting support and the angle adjusting support, the angle adjusting motor drives the second screw to axially move through the second screw, and the second screw drives the angle adjusting support to rotate on the steering column shell.
Preferably, the length adjusting mechanism is provided with a guiding mechanism, the guiding mechanism is used for guiding when the length adjusting mechanism is in length adjustment and collapse, the inner pipe column moves along the axial direction and does not deflect, and the guiding mechanism comprises: the guide block is fixedly connected to the length adjusting support through a bolt, a limit groove is formed in the position, located on the length adjusting support, of the steering column shell, the guide bar is installed in the limit groove and in interference fit with the guide block, the baffle is installed above the guide bar to prevent the guide bar from being ejected out, and the guide block is connected in the guide bar in a sliding mode.
As the preferable mode of the invention, the length adjusting mechanism is provided with the collapse energy absorbing structure, the head end of the energy absorbing piece is riveted on the C-shaped strip of the inner pipe column, the bent tail part of the energy absorbing piece is fixedly connected with the inner pipe column through a bolt, the inner pipe column moves downwards in the collapse process, the rivet is cut off, and the bent part of the energy absorbing piece is continuously straightened, so that the collapse function is realized.
As the preferable mode of the invention, the connecting section of the internal spline and the external spline is provided with the conformal connecting sleeve, and the connecting sleeve is used for compensating the gap between the internal spline and the external spline and reducing the friction between the internal spline and the external spline.
The invention has the advantages and positive effects that:
1. the invention carries out information transmission between the steering column and the steering gear through the electric signal, cancels the intermediate shaft connected between the steering column and the steering gear, creates more space for the arrangement of the whole vehicle, thereby increasing the length of the steering column, realizing long-stroke adjustment, and having the adjustment stroke reaching +/-100 mm. The road sense control module can feed back different torque signals to the steering wheel through different road conditions, for example, when an automobile runs at different speeds, the rotation moment required by the rotation steering wheel is different, and the road sense control module is more flexible and convenient compared with a single rotation moment for mechanical rotation. The road sense control module can effectively simulate road sense, and is more direct and rapid than mechanical transmission feedback, and driving experience is better.
2. According to the invention, the steering shaft connected to the road sense control module is divided into two parts, so that the processing difficulty of the steering shaft is effectively reduced, the assembly position degree of the steering shaft and a motor is more easily ensured due to the reduction of the steering shaft, and the clamping stagnation phenomenon in the rotating or sliding process caused by poor coaxiality of the spline matching part is avoided.
3. The length adjusting mechanism and the angle adjusting mechanism are driven by adopting a screw rod and nut mode and are matched with a stepping motor serving as a power source, so that the adjustment is more accurate and the response speed is higher.
Drawings
Other objects and attainments together with a more complete understanding of the invention will become apparent and appreciated by referring to the following description taken in conjunction with the accompanying drawings. In the drawings:
FIG. 1 is a schematic diagram of the overall structure of an embodiment of the present invention.
Fig. 2 is a schematic diagram showing a connection structure between an angle adjusting mechanism and a steering column housing in an embodiment of the present invention.
Fig. 3 is a schematic diagram of a connection structure between a steering mechanism and a length adjusting bracket in an embodiment of the present invention.
Fig. 4 is an exploded view of the steering mechanism and length adjustment bracket connection in an embodiment of the present invention.
Fig. 5 is an exploded view of the steering mechanism in the embodiment of the present invention.
Fig. 6 is a schematic structural view of a length adjusting mechanism in the embodiment of the present invention.
Fig. 7 is a schematic diagram of a connection structure between a road feel control module and a steering shaft in an embodiment of the present invention.
Fig. 8 is an exploded view of the angle adjusting mechanism in the embodiment of the present invention.
Fig. 9 is an exploded view of the steering mechanism in the embodiment of the present invention.
Fig. 10 is a schematic view of the steering shaft, the connecting sleeve and the steering tube connection structure in the embodiment of the present invention.
Description of the drawings: steering mechanism 1, steering tube 101, inner column 102, two bearings 103, two clasps 104, road feel control module 105, steering shaft 106, connection sleeve 107, angle adjustment mechanism 2, angle adjustment motor 201, angle adjustment bracket 202, angle adjustment holding bracket 203, top connection bracket 204, second lead screw 205, second nut 206, hinge mount 207, length adjustment mechanism 3, length adjustment motor 301, length adjustment bracket 302, length adjustment holding bracket 303, first lead screw 304, first nut 305, energy absorbing sheet 306, guide block 307, guide bar 308, baffle 309, nut mount 310, through hole 311, steering column housing 4.
Detailed Description
In the following description, for purposes of explanation, numerous specific details are set forth in order to provide a thorough understanding of one or more embodiments. It may be evident, however, that such embodiment(s) may be practiced without these specific details. In other instances, well-known structures and devices are shown in block diagram form in order to facilitate describing one or more embodiments.
Fig. 1 to 10 show overall structural schematic diagrams according to embodiments of the present invention.
As shown in fig. 1 to 10, the steering-by-wire long-stroke adjustment steering column provided by the embodiment of the invention comprises: steering mechanism 1, angle adjustment mechanism 2, length adjustment mechanism 3, steering column housing 4; the steering mechanism 1 is arranged in the steering column shell 4, and the length adjusting mechanism 3 drives the steering mechanism 1 to stretch and retract in the steering column shell 4 so as to adjust the length of the steering mechanism. The angle adjusting mechanism 2 is arranged on the steering column shell 4, and the angle adjusting mechanism 2 drives the steering mechanism 1 to adjust the angle.
The steering mechanism 1 in the present embodiment includes: the steering tube 101 is sleeved in the inner tube column 102, inner rings of the two bearings 103 are arranged on the steering tube 101, outer rings of the two bearings 103 are arranged on the inner tube column 102, the steering tube 101 is rotationally connected in the inner tube column 102 through the bearings, and the two clamping rings 104 are arranged on two sides of the inner tube column 102 and used for sealing the bearings 103 and the steering tube 101. The controller of the road sensing motor 105 is connected with the steering gear and is connected with a CAN bus of the whole vehicle, the road sensing motor 105 is used for receiving road signals fed back by the steering gear, simulating road sensing and then transmitting the road signals to the steering wheel, a steering shaft 106 at the output end of the road sensing motor 105 is sleeved in the steering tube 101, one end of the steering shaft 106 is fixedly connected to the output end of the road sensing motor 105, an external spline is arranged at the other end of the steering shaft 106, an internal spline is arranged in the steering tube 101, the external spline end of the steering shaft 106 is spliced on the internal spline of the steering tube 101, a conformal connecting sleeve 107 is arranged on a connecting section of the internal spline and the external spline, and the connecting sleeve 107 is used for compensating a gap between the internal spline and the external spline. The road sensing motor 105 drives the steering tube 101 to rotate through the steering shaft 106, and the steering shaft 106 can slide back and forth in the steering tube 106.
The length adjustment mechanism 3 in the present embodiment is used for length adjustment of a steering column, the length adjustment mechanism 3 including: the length adjusting motor 301, the length adjusting bracket 302, the length adjusting holding bracket 303, the first lead screw 304, the first screw nut 305, the energy absorbing piece 306, the guide block 307, the guide strip 308 and the baffle 309, the inner tube column 102 is slidably connected in the steering column shell 4, the length adjusting motor 301 is installed at the tail position of the steering column shell 4, the first lead screw 304 is arranged in parallel with the steering column shell 4, one end of the first lead screw 304 is connected with an output shaft of the length adjusting motor 301, and the other end of the first lead screw 304 is installed on the steering column shell 4 through a bearing seat. The first nut 305 is sleeved on the first lead screw 304, and the first nut 305 is mounted on a nut seat 310 integrally connected with the length adjustment bracket 302 and the length adjustment holding bracket 303, and the first nut 305 drives the length adjustment bracket 302 and the length adjustment holding bracket 303 to reciprocate with the first lead screw 304. The length adjusting bracket 302 and the length adjusting holding bracket 303 are in transition fit and can rotate relatively, a through hole 311 for a screw seat to pass through is formed in the side surface of the top of the steering column shell 4, the head end of the energy absorbing sheet 306 is riveted on the C-shaped strip of the inner column 102, and the bent tail of the energy absorbing sheet 306 is fixedly connected with the inner column 102 through bolts. The guide mechanism consisting of the guide blocks 307, the guide strips 308 and the baffle 309 is used for guiding when the length is adjusted and the guide blocks collapse, so that the inner pipe column moves axially and does not deflect, the two guide blocks 307 are fixedly connected to the length adjusting bracket 302 through bolts, a limit groove is formed in the position of the steering column shell 4, which is located on the length adjusting bracket 302, of the steering column shell, the guide strips 308 are installed in the limit groove and are in interference fit with the guide blocks 307, the baffle 309 is installed on the limit groove and is located above the guide strips 308, ejection of the guide strips 308 is prevented, and the two guide blocks 307 are connected in the guide strips 308 in a sliding mode. The length adjustment motor 301 drives the length adjustment holding bracket 303 through a first screw nut 305 on the first screw rod 304, and the length adjustment holding bracket 303 drives the inner column 102 to stretch and retract in the steering column housing 4 through the length adjustment bracket 302, so that the length adjustment is realized.
The angle adjustment mechanism 2 in the present embodiment is for adjusting the angle of the steering column 102: the angle adjustment mechanism 2 includes: the steering column comprises an angle adjusting motor 201, an angle adjusting bracket 202, an angle adjusting holding bracket 203, a top connecting bracket 204, a second lead screw 205 and a second screw 206, wherein the angle adjusting motor 201 is arranged on a steering column shell 4, the angle adjusting motor 201 and the steering column shell 4 can rotate relatively, the angle adjusting bracket 202 is hinged to the front end of the top connecting bracket 204, a matching hole of the top connecting bracket 204 is a long round hole, the angle adjusting bracket 202 can slide and rotate relative to the top connecting bracket 204, the tail end of the top connecting bracket 204 is hinged to the steering column shell 4, the angle adjusting bracket 202 is hinged to the steering column shell 4, the second lead screw 205 is parallel to the first lead screw 304, the second lead screw 205 is connected with an output shaft of the angle adjusting motor 201, the second screw 206 is sleeved on the second lead screw 205, the angle adjusting holding bracket 203 is fixedly connected to the angle adjusting bracket 202, a hinging seat 207 hinged to the second screw 206 is formed between the angle adjusting holding bracket 203 and the angle adjusting bracket 202, the hinging seat 207 is hinged to the second screw 206, the angle adjusting motor 201 drives the second screw 206 to axially move relative to the steering column shell 4 through the second lead screw 206, and the second screw 206 is driven to axially rotate relative to the steering column shell 4.
Working principle: the rear end of the steering tube 101 in the steering mechanism 1 is connected with the road sense control module 105, an intermediate shaft connected with a steering machine is omitted, and the road sense control module 105 receives signals of the steering machine to simulate road sense. The mode not only can realize long-stroke adjustment (the adjustment stroke reaches +/-100 mm), but also shortens the whole length of the steering structure. The length adjusting motor 301 of the length adjusting mechanism 3 drives the first screw nut 305 to axially move along the first screw nut 304 by driving the first screw nut 304 to rotate, so as to drive the inner pipe column 102 to stretch and retract, thereby realizing length adjustment. Two guide blocks 307 are fixed on the length adjusting bracket 302 through bolts, a limit groove is formed in the steering column shell 4, a guide bar 308 is arranged in the limit groove and in interference fit with the guide blocks 307, and the guide bar 308 is covered by a baffle 309 to prevent the guide bar 308 from being ejected. The guide block 307 can slide in the guide bar 308, and plays a guiding role in the length adjustment and collapse process, so that the deflection of the inner pipe column can be prevented. The angle adjusting motor 201 in the angle adjusting mechanism 2 is fixed to the steering column housing 4 by a bolt or a pin, and the angle adjusting bracket 202 and the angle adjusting holding bracket 203 are fixed together by a bolt connection to the second nut 206. The rotation points of the top connecting bracket 204 and the steering column housing 4 are fixed through bolts, the rotation points of the angle adjusting bracket 202 and the steering column housing 4 are fixed through bolts, and a sliding piece and a bolt are fixed between the top connecting bracket 204 and the angle adjusting bracket 202. In the process of angle adjustment, the angle adjustment motor 201 drives the second screw rod 205 to rotate, drives the second screw nut 206 to axially move along the second screw rod 205, and further drives the angle adjustment bracket 202 to rotate relative to the steering column housing 4, and the steering column housing 4 rotates relative to the top connection bracket 204, so that angle adjustment is realized.
The foregoing is merely illustrative embodiments of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art can easily think about variations or substitutions within the technical scope of the present invention, and the invention should be covered. Therefore, the protection scope of the invention is subject to the protection scope of the claims.
Claims (6)
1. A steer-by-wire long travel adjustment steering column comprising: the road sense control system is characterized by also comprising a road sense control module connected with the length adjusting mechanism and the steering mechanism;
the steering mechanism includes: the steering tube is sleeved in the inner tube column, and is rotationally connected with the inner tube column through the bearing, and the bearing is limited in the inner tube column;
the steering device comprises a steering wheel, a steering shaft, a steering wheel, a steering control module, a steering shaft, a steering pipe, a steering control module and a steering pipe, wherein the steering wheel is connected with the steering wheel through the steering control module, the steering control module is used for receiving road surface signals fed back by the steering wheel to simulate road feel and then transmitting the road feel to the steering wheel, the steering shaft at the output end of the steering control module is sleeved in the steering pipe, one end of the steering shaft is connected with the steering control module, the other end of the steering shaft is connected with the steering pipe, the steering pipe drives the steering shaft to rotate, and the steering pipe can slide back and forth along the steering shaft.
2. A steering-by-wire long travel adjustment steering column according to claim 1, wherein the length adjustment mechanism is for length adjustment of the steering column, the length adjustment mechanism comprising: steering column casing, interior tubular column, length adjustment motor, length adjustment support, length adjustment holder, first lead screw, first screw and energy-absorbing piece, interior tubular column sliding connection is in the steering column casing, length adjustment motor installs in steering column casing afterbody position, first lead screw rotates to be connected on the steering column casing and with steering column casing parallel arrangement, first lead screw and length adjustment motor's output shaft, first screw suit is on first lead screw and with length adjustment holder rotation connection, length adjustment holder links firmly with length adjustment support, length adjustment support links firmly with the energy-absorbing piece, the energy-absorbing piece links firmly in the tubular column outside, length adjustment motor drives length adjustment support through first screw on the first lead screw and moves to drive interior tubular column and stretch out and draw back in the steering column casing.
3. A steering-by-wire long-stroke adjustment steering column according to claim 1, wherein the angle adjustment mechanism is for adjusting the angle of the steering column, the angle adjustment mechanism comprising: the angle adjusting motor is rotationally connected to the steering column shell, the angle adjusting support is rotationally connected to the front end of the top connecting support, the tail end of the top connecting support is hinged to the steering column shell, the angle adjusting support is hinged to the steering column shell, the second screw is parallel to the first screw, the second screw is connected with the angle adjusting motor, the second screw is sleeved on the second screw, the angle adjusting support is fixedly connected to the angle adjusting support, a hinge seat hinged to the second screw is formed between the angle adjusting support and the angle adjusting support, the angle adjusting motor drives the second screw to axially move through the second screw, and the second screw drives the angle adjusting support to rotate on the steering column shell.
4. A steer-by-wire long travel adjustment steering column according to claim 2, wherein the length adjustment mechanism is provided with a guide mechanism for guiding the inner column in the axial direction without deflection during length adjustment and collapse, the guide mechanism comprising: the guide block is fixedly connected to the length adjusting support through a bolt, a limit groove is formed in the position, located on the length adjusting support, of the steering column shell, the guide bar is installed in the limit groove and in interference fit with the guide block, the baffle is installed above the guide bar to prevent the guide bar from being ejected out, and the guide block is connected in the guide bar in a sliding mode.
5. The steering-by-wire long-stroke adjusting steering column according to claim 2, wherein the length adjusting mechanism is provided with a collapsing energy absorbing structure, the head end of the energy absorbing piece is riveted on a C-shaped strip of the inner pipe column, the bent tail part of the energy absorbing piece is fixedly connected with the inner pipe column through a bolt, the inner pipe column moves downwards in the collapsing process, the pulling rivet is cut off, and the bending part of the energy absorbing piece is continuously straightened, so that the collapsing function is realized.
6. The steering-by-wire long-stroke adjusting steering column according to claim 1, wherein a connecting sleeve which is shaped along with the shape is arranged on a connecting section of the internal spline and the external spline, and the connecting sleeve is used for compensating a gap between the internal spline and the external spline and reducing friction between the internal spline and the external spline.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210938787.0A CN117549956A (en) | 2022-08-05 | 2022-08-05 | Steering column is adjusted to drive-by-wire steering long stroke |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210938787.0A CN117549956A (en) | 2022-08-05 | 2022-08-05 | Steering column is adjusted to drive-by-wire steering long stroke |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN117549956A true CN117549956A (en) | 2024-02-13 |
Family
ID=89813439
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210938787.0A Pending CN117549956A (en) | 2022-08-05 | 2022-08-05 | Steering column is adjusted to drive-by-wire steering long stroke |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN117549956A (en) |
-
2022
- 2022-08-05 CN CN202210938787.0A patent/CN117549956A/en active Pending
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