CN215677574U - Steering wheel limiting and supporting device for whole vehicle bench test - Google Patents
Steering wheel limiting and supporting device for whole vehicle bench test Download PDFInfo
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- CN215677574U CN215677574U CN202121335095.4U CN202121335095U CN215677574U CN 215677574 U CN215677574 U CN 215677574U CN 202121335095 U CN202121335095 U CN 202121335095U CN 215677574 U CN215677574 U CN 215677574U
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Abstract
The utility model discloses a steering wheel limiting and supporting device for a whole vehicle rack test, which at least consists of two groups of limiting and supporting mechanisms and is symmetrically clamped at two sides in the radial direction of a steering wheel; spacing supporting mechanism includes: the device comprises a locking module, a height adjusting rod, a first sleeve, a third sleeve, a supporting rod and a buffer spring; the clamping end of the locking module is connected with the steering wheel, the connecting end of the locking module is detachably installed on the height adjusting rod, the height adjusting rod is axially and fixedly connected with a third sleeve through a first sleeve, the bottom of the buffer spring is sleeved on the supporting rod in a relatively fixed mode, the third sleeve is sleeved on the outer side of the buffer spring, the top of the buffer spring is pressed in the third sleeve along the bottom surface, the top of the supporting rod is fixed with a third sleeve limiting part, and the top of the third sleeve is pressed along the bottom surface limiting to the third sleeve limiting part. The utility model provides Z-direction buffering while realizing reliable limit support for Z-direction rotation of the steering wheel, is convenient and fast to install and effectively ensures smooth performance of a complete vehicle bench test.
Description
Technical Field
The utility model belongs to the technical field of finished automobile road simulation test equipment, and particularly relates to a steering wheel limiting and supporting device for a finished automobile bench test.
Background
In the development process of automobile products, the durability is an important index. The road simulation test has good test repeatability and short test period, and plays an important role in durability evaluation of the suspension system.
At present, a road simulation test is mainly carried out on a whole vehicle, and an MTS329 type shaft coupling road simulator can accurately repeat test site road surfaces and driving road conditions. In the road simulation test process, a driver controls the steering wheel, but in the bench test, because no driver controls the steering wheel and individual road condition wheels are subjected to Z-direction torque, Z-direction torsion is easy to occur on the steering wheel, so that test equipment is over-limited, the test result is influenced, and the steering wheel is limited to rotate freely by means of external force.
In the prior art, in a bench test of a whole vehicle, a steering wheel is generally bound by a rope, and then the rope is pulled to the bottom of a seat slide rail to be wound and fixed, so that the rotation of the steering wheel is limited.
In addition, some technical solutions for limiting the steering wheel torsion, such as a limiting device or a fixing tool, exist in the prior art, but the related technical solutions still have the following disadvantages:
(1) the stress point of the limiting device is not well selected, so that the stress capacity of the limiting device is weak, the limiting device is difficult to bear large torque, and the test requirements of related working conditions cannot be met.
(2) Because the space is limited in the car for fixing device is limited in the fixed position in the car, and prior art adsorbs on window glass through the sucking disc and fixes, and this fixed mode stability is relatively poor.
(3) The existing fixing device has a complex structure and is relatively heavy, and the fixing device is extremely difficult to install in a limited space in a vehicle, so that the efficiency of a rack test of the whole vehicle is seriously influenced.
Disclosure of Invention
Aiming at the defects in the prior art, the utility model provides the steering wheel limiting and supporting device for the whole vehicle bench test, which can realize reliable limiting and supporting of the steering wheel in the Z direction, provide Z direction buffering, is convenient and fast to install and effectively ensures the smooth performance of the whole vehicle bench test.
The technical scheme of the utility model is as follows by combining the attached drawings of the specification:
a steering wheel limiting and supporting device for a whole vehicle bench test at least comprises two groups of limiting and supporting mechanisms A, wherein the two groups of limiting and supporting mechanisms A are symmetrically clamped at two radial sides of a steering wheel B;
spacing supporting mechanism A includes: the device comprises a locking module 1, a height adjusting rod 2, a first sleeve 3, a third sleeve 6, a supporting rod 7 and a buffer spring 8;
the clamping end of the locking module 1 is connected with the steering wheel B, the connecting end of the locking module 1 is detachably mounted on the height adjusting rod 2, the height adjusting rod 2 is fixedly connected with the third sleeve 6 in the axial direction through the first sleeve 3, the bottom of the buffer spring 8 is sleeved on the support rod 7 in a relatively fixed mode, the third sleeve 6 is sleeved on the outer side of the buffer spring 8, the top of the buffer spring 8 is pressed in the third sleeve 6 along the bottom surface, the top of the support rod 7 is fixed with a third sleeve limiting part, and the top of the third sleeve 6 is pressed along the bottom surface limited in the third sleeve limiting part.
Further, the locking module 1 comprises: the clamp comprises a clamp seat 101, a clamp plate 102, a pressure plate compression bolt 103, a pressure plate locking nut 104, a jackscrew 106 and a height adjusting lantern ring 107;
the height adjusting lantern ring 107 is sleeved on the height adjusting rod 2 in a way of being matched with the upper section plane 202 of the adjusting rod, and the axial positioning of the height adjusting lantern ring 107 is realized through the jackscrew 106;
the clamping seat 101 is fixed on the outer side of the height adjusting lantern ring 107, and is fixedly connected with the clamping plate 102 through the clamping plate compression bolt 103 and the clamping plate locking nut 104, and the steering wheel is clamped and fixed on the clamping seat 101 through the clamping plate 102.
Furthermore, a limit guide block 110 is fixed on one side of the clamping plate 102, a limit guide seat 105 is fixed on the clamping seat 101 corresponding to the limit guide block 110, and the limit guide block 110 is matched with a guide groove formed on the limit guide seat 105.
Further, the holder 101 is fixedly connected to the height adjusting collar 107 through a holder connecting nut 108 and a holder connecting stud 109.
Further, the lower half section of the height adjusting rod 2 is in threaded connection with the first sleeve 3 through an adjusting rod threaded section 204 and is locked and fixed through an adjusting rod locking nut 201.
Furthermore, an adjusting rod limiting flange 203 is fixedly arranged axially above the adjusting rod threaded section 204.
Further, the third sleeve limiting part adopts a limiting bolt 5;
the limiting bolt 5 is fixed at the top of the supporting rod 7 in a threaded mode, and the top of the third sleeve 6 is pressed against the end face of the bottom of the outer edge of the limiting bolt 5.
Furthermore, the buffer spring 8 is sleeved on the support rod guide section 701 of the upper half section of the support rod 7, and a damping adjusting nut 9 is connected to the support rod thread section 702 of the upper half section of the support rod 7 in a matching manner;
the bottom of the buffer spring 8 is pressed against the top end face of the damping adjusting nut 9, and the buffer spring 8 is controlled to compress or extend by adjusting the axial position of the damping adjusting nut 9, so that the buffering rigidity of the buffer spring 8 is adjusted.
Further, a second sleeve 4 is arranged between the first sleeve 3 and the third sleeve 6;
the first sleeve 3, the second sleeve 4 and the third sleeve 6 are sequentially in threaded connection along the axial direction.
Further, a ball head support leg 10 is mounted at the bottom of the support rod 7;
the support rod 7 is supported and fixed on the floor in the vehicle through a ball head support leg 10.
Compared with the prior art, the utility model has the beneficial effects that:
1. according to the steering wheel limiting and supporting device, two sides of the steering wheel are selected as limiting and supporting points, so that a large torque load can be borne, and the limiting and supporting of the steering wheel are more reliable.
2. According to the steering wheel limiting and supporting device, the fixed supporting position of the device is selected on the floor in the vehicle, so that the whole device is more reliable in supporting.
3. According to the steering wheel limiting and supporting device, the buffering element is arranged in the Z direction for supporting the steering wheel, so that the steering wheel is buffered in the Z direction, and the steering wheel is prevented from being damaged due to Z-direction acting force in the test process.
4. According to the steering wheel limiting and supporting device, the damping adjusting nut is arranged in the Z direction for supporting the steering wheel, and the initial load of the spring can be adjusted according to the tightness of the damping adjusting nut, so that the supporting force of the steering wheel in the Z direction can be adjusted to adapt to different test working conditions.
5. The steering wheel limiting and supporting device can adjust the Z-direction height of the steering wheel support, and is suitable for steering wheels with different heights corresponding to different vehicle types.
6. The steering wheel limiting and supporting device is ingenious in structural design, simple in structure, convenient and fast to install in a limited space in a vehicle, and high in universality.
Drawings
FIG. 1 is a schematic view of the steering wheel limiting support device according to the present invention in a working state;
FIG. 2 is a schematic view of an overall exploded structure of the steering wheel limiting support device according to the present invention;
FIG. 3 is a schematic view of a partially exploded structure of the steering wheel support device according to the present invention;
FIG. 4 is a partial cross-sectional view of a cushioning portion of the steering wheel support spacer assembly of the present invention;
fig. 5 is a schematic view of a partially exploded structure of a buffering portion of the steering wheel limiting and supporting device according to the present invention. In the figure:
a-a limit support mechanism and B-a steering wheel;
1-a locking module, 2-a height adjusting rod, 3-a first sleeve,
4-a second sleeve, 5-a limit bolt, 6-a third sleeve,
7-supporting rod, 8-buffer spring, 9-damping adjusting nut,
10-ball feet;
101-clamping seat, 102-clamping plate, 103-pressing plate pressing bolt,
104-pressing plate locking nut, 105-limiting guide seat, 106-jackscrew,
107-a height adjusting lantern ring, 108-a clamping seat connecting nut, 109-a clamping seat connecting stud,
110-a limit guide block;
201-adjusting rod locking nut, 202-adjusting rod upper section plane, 203-adjusting rod limiting flange,
204-adjusting rod thread section;
601-third sleeve thread segment;
701-support rod guide section and 702-support rod thread section.
Detailed Description
For clearly and completely describing the technical scheme and the specific working process thereof, the specific implementation mode of the utility model is as follows by combining the attached drawings of the specification:
in the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can, for example, be fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.
In the present invention, unless otherwise expressly stated or limited, the first feature "on" or "under" the second feature may be directly contacting the first and second features or indirectly contacting the first and second features through an intermediate. Also, a first feature "on," "over," and "above" a second feature may be directly or diagonally above the second feature, or may simply indicate that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature may be directly under or obliquely under the first feature, or may simply mean that the first feature is at a lesser elevation than the second feature.
In the description herein, references to the description of the term "one embodiment," "some embodiments," "an example," "a specific example," or "some examples," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the utility model. In this specification, the schematic representations of the terms used above are not necessarily intended to refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, various embodiments or examples and features of different embodiments or examples described in this specification can be combined and combined by one skilled in the art without contradiction.
The embodiment discloses a spacing strutting arrangement of steering wheel for whole car bench test, as shown in fig. 1, the spacing strutting arrangement of steering wheel comprises two sets of spacing supporting mechanism A, two sets of spacing supporting mechanism A symmetries set up the both sides at steering wheel B, spacing supporting mechanism A's top exposed core centre gripping is in steering wheel B's the radial both sides of level, the realization is to steering wheel B reliable support and reliable spacing along Z to the direction of rotation ascending in Z, spacing supporting mechanism A's bottom supported end supports on the floor in the car, can provide firm support for the device, and convenient installation in the limited space in the car.
As shown in fig. 2, the limit support mechanism a includes: the device comprises a locking module 1, a height adjusting rod 2, a first sleeve 3, a second sleeve 4, a limiting bolt 5, a third sleeve 6, a support rod 7, a buffer spring 8, a damping adjusting nut 9 and a ball head support leg 10; wherein: locking module 1 is installed in 2 upper ends of altitude mixture control pole, and 2 suit connections of altitude mixture control pole are in first sleeve 3, and 3 suits of first sleeve are connected in second sleeve 4, and the suit of second sleeve 4 is in the 6 outsides of third sleeve, and buffer spring 8 suit is between third sleeve 6 and bracing piece 7, and damping adjusting nut 9 is installed at bracing piece 7 lower extreme, and 7 bottoms of bracing piece are passed through bulb stabilizer blade 10 and are supported on the floor in the car.
As shown in fig. 3, the locking module 1 is adjustably mounted on the upper half section of the height adjusting rod 2, and the locking module 1 includes: the clamp comprises a clamp seat 101, a clamp plate 102, a clamp plate compression bolt 103, a clamp plate locking nut 104, a limiting guide seat 105, a jackscrew 106, a height adjusting lantern ring 107, a clamp seat connecting nut 108, a clamp seat connecting stud 109 and a limiting guide block;
the height adjusting lantern ring 107 is sleeved on the upper half shaft section of the height adjusting rod 2, the main body of the upper half shaft section of the height adjusting rod 2 is an optical axis, an adjusting rod upper section plane 202 is axially processed on the upper half shaft section of the height adjusting rod 2, the height adjusting lantern ring 107 is sleeved on the upper half section of the height adjusting rod 2 and matched with the adjusting rod upper section plane 202, the height adjusting lantern ring 107 can only linearly slide along the axial direction of the height adjusting rod 2 and cannot rotate along the axial direction of the height adjusting rod 2, and the axial rotation limiting along the height adjusting rod 2 is realized; the jackscrew 106 vertically penetrates through the side wall of the height adjusting lantern ring 107 and is in threaded connection with the height adjusting lantern ring 107, and the end part of the jackscrew is jacked and pressed on the upper section plane 202 of the adjusting rod of the height adjusting rod 2, so that the height adjusting lantern ring 107 is relatively fixed at the specified height position of the height adjusting rod 2, and further the height position of the locking module 1 relative to the height adjusting rod 2 is adjusted;
the clamp seat connecting stud 109 is vertically fixed on the outer side wall of the height adjusting lantern ring 107, a connecting block is arranged at one end of the clamp seat 101, the clamp seat connecting stud 109 penetrates through a connecting hole formed in the connecting block of the clamp seat 101 and is in threaded fit connection with the clamp seat connecting stud 109 through a clamp seat connecting nut 108, so that the clamp seat 101 is fixedly connected to the height adjusting lantern ring 107;
the clamp plate 102 is arranged above the clamp seat 101 in parallel, press-fitting through holes are formed in the matched and corresponding positions of the clamp seat 101 and the clamp plate 102, the press-fitting bolt 103 sequentially penetrates through the press-fitting through holes in the clamp seat 101 and the clamp plate 102 from bottom to top, and then is in threaded fit connection with the press-fitting bolt 103 through the press-fitting locking nut 108, so that the clamp plate 102 is fixed on the clamp seat 101 in a press-fitting manner, one side of the steering wheel is arranged between the clamp plate 102 and the clamp seat 101, the steering wheel is fixed on the locking module 1 in a press-fitting manner by screwing the press-fitting locking nut 108, and further rotation limiting of the steering wheel in the Z direction is realized;
in addition, a limiting guide block 110 is fixed on one side of the clamping plate 102, a limiting guide seat 105 is fixed on the clamping seat 101 corresponding to the limiting guide block 110, the limiting guide block 110 is matched with a guide groove formed in the limiting guide seat 105, the limiting guide block 110 slides downwards along the guide groove of the limiting guide seat 105 when the clamping plate 102 is pressed downwards on the clamping seat 101, and the clamping stability of the steering wheel is prevented from being influenced by the fact that the clamping plate 102 rotates relative to the clamping seat 101 while the clamping plate 102 is guided downwards.
As shown in fig. 2 and fig. 3, the height adjusting rod 2 is divided into an upper half section and a lower half section by an adjusting rod limiting flange 203 arranged at the axial middle position, wherein, as mentioned above, the upper half section of the height adjusting rod 2 is an optical axis with an adjusting rod upper section plane 202 processed along the axial direction, the lower half section of the height adjusting rod 2 is an adjusting rod thread section 204 processed with external threads, the upper half section of the height adjusting rod 2 is connected with the locking module 1 in a matching way, the lower half section of the height adjusting rod 2 is sleeved in the first sleeve 3 and is connected with the first sleeve 3 in a threaded way, through adjusting the screwing length between the height adjusting rod 2 and the first sleeve 3, the further adjustment of the height adjusting rod 2 is realized, and the relative locking between the height adjusting rod 2 and the first sleeve 3 is realized through a locking nut 201.
As shown in fig. 2, the upper half section of the second sleeve 4 is provided with an internal thread and is fixedly connected with the lower end thread of the first sleeve 3 axially above the second sleeve; the lower half section of the second sleeve 4 is provided with internal threads and is fixedly connected with the upper end threads of a third sleeve 6 axially below the second sleeve.
As shown in fig. 4 and 5, the support rod 7 is provided with a support rod guide section 701 in the axial direction, a support rod thread section 702 is arranged below the support rod in the axial direction, the top of the support rod 7 is fixedly connected with a limit bolt 5 through a thread, a ball head support leg 10 is arranged at the bottom of the support rod 7, and the ball head support leg 10 with a ball head structure can adjust the support angle at the bottom of the support rod 7 in multiple directions, so that self-leveling is realized according to the support point of the floor in the vehicle, and the steering wheel is limited and supported in a limited vehicle energy space environment;
the damping adjusting nut 9 is in threaded connection with the supporting rod threaded section 702 of the supporting rod 7, and the axial position of the damping adjusting nut 9 on the supporting rod 7 is adjusted by rotating the damping adjusting nut 9;
the buffer spring 8 is sleeved outside the support rod guide section 701 of the support rod 7, the third sleeve 6 is sleeved outside the buffer spring 8, the bottom of the buffer spring 8 is pressed against the top end face of the damping adjusting nut 9, the top of the buffer spring 8 is pressed against the annular inner edge end face of the inner side of the third sleeve 6, and the third sleeve 6 achieves energy absorption and buffering under the action of the elastic force of the buffer spring 8 in the process of moving up and down under the action of the axial external force;
in addition, the top of the third sleeve 6 is pressed against the bottom end face of the annular limiting outer edge of the limiting bolt 5, and the buffer spring 8 can be compressed or extended by screwing the axial position of the damping adjusting nut 9 on the supporting rod thread section 702 of the supporting rod 7, so that the buffer rigidity of the spring is improved or reduced.
The lower extreme inboard of second sleeve 4 is opened there is the internal thread to with the third sleeve screw thread section 601 screw thread fixed connection of third sleeve 6 upper end, in the test process, the Z that the locking module 1 that is used for the spacing steering wheel of centre gripping will receive is to the exogenic force through adjusting pole 2, first sleeve 3 and second sleeve 4 transmission to third sleeve 6 in proper order, the axial external force that third sleeve 6 received, realize the energy-absorbing buffering through buffer spring 8, and then avoid reverse damage to the steering wheel.
Although embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention, and that variations, modifications, substitutions and alterations can be made to the above embodiments by those of ordinary skill in the art within the scope of the present invention.
The above-described embodiments of the present invention should not be construed as limiting the scope of the present invention. Any other corresponding changes and modifications made according to the technical idea of the present invention should be included in the protection scope of the claims of the present invention.
Claims (10)
1. The utility model provides a spacing strutting arrangement of steering wheel for whole car bench test which characterized in that:
the steering wheel support mechanism is characterized by at least comprising two groups of limiting support mechanisms (A), wherein the two groups of limiting support mechanisms (A) are symmetrically clamped at two radial sides of a steering wheel (B);
the limit support mechanism (A) comprises: the device comprises a locking module (1), a height adjusting rod (2), a first sleeve (3), a third sleeve (6), a supporting rod (7) and a buffer spring (8);
the clamping end of the locking module (1) is connected with the steering wheel (B), the connecting end of the locking module (1) is detachably installed on the height adjusting rod (2), the height adjusting rod (2) is connected with the third sleeve (6) in an axial fixed mode through the first sleeve (3), the bottom of the buffer spring (8) is sleeved on the supporting rod (7) in a relatively fixed mode, the third sleeve (6) is sleeved on the outer side of the buffer spring (8), the top of the buffer spring (8) is pressed in the third sleeve (6) along the bottom surface, the top of the supporting rod (7) is fixed with a third sleeve limiting portion, and the top of the third sleeve (6) is pressed along the bottom surface limiting the third sleeve limiting portion.
2. The steering wheel limiting and supporting device for the whole vehicle bench test is characterized in that:
the locking module (1) comprises: the clamp comprises a clamp seat (101), a clamp plate (102), a clamp plate compression bolt (103), a clamp plate locking nut (104), a jackscrew (106) and a height adjusting lantern ring (107);
the height adjusting lantern ring (107) is sleeved on the height adjusting rod (2) in a way of being matched with the upper section plane (202) of the adjusting rod, and the axial positioning of the height adjusting lantern ring (107) is realized through a jackscrew (106);
the clamping seat (101) is fixed on the outer side of the height adjusting lantern ring (107), and is fixedly connected with the clamping plate (102) through a clamping plate compression bolt (103) and a clamping plate locking nut (104), and the steering wheel is clamped and fixed on the clamping seat (101) through the clamping plate (102).
3. The steering wheel limiting and supporting device for the whole vehicle rack test as claimed in claim 2, wherein:
a limiting guide block (110) is fixed on one side of the clamping plate (102), a limiting guide seat (105) is fixed on the clamping seat (101) corresponding to the limiting guide block (110), and the limiting guide block (110) is matched with a guide groove formed in the limiting guide seat (105).
4. The steering wheel limiting and supporting device for the whole vehicle rack test as claimed in claim 2, wherein:
the clamping seat (101) is fixedly connected with the height adjusting lantern ring (107) through a clamping seat connecting nut (108) and a clamping seat connecting stud (109).
5. The steering wheel limiting and supporting device for the whole vehicle bench test is characterized in that:
the lower half section of the height adjusting rod (2) is in threaded connection with the first sleeve (3) through an adjusting rod threaded section (204) and is locked and fixed through an adjusting rod locking nut (201).
6. The steering wheel limiting and supporting device for the whole vehicle bench test is characterized in that:
an adjusting rod limiting flange (203) is fixedly arranged axially above the adjusting rod threaded section (204).
7. The steering wheel limiting and supporting device for the whole vehicle bench test is characterized in that:
the third sleeve limiting part adopts a limiting bolt (5);
the limiting bolt (5) is fixed to the top of the supporting rod (7) in a threaded mode, and the top of the third sleeve (6) is pressed on the end face of the bottom of the outer edge of the limiting bolt (5).
8. The steering wheel limiting and supporting device for the whole vehicle bench test is characterized in that:
the buffer spring (8) is sleeved on the support rod guide section (701) of the upper half section of the support rod (7), and the damping adjusting nut (9) is connected to the support rod thread section (702) of the upper half section of the support rod (7) in a matching manner;
the bottom of the buffer spring (8) is pressed against the top end face of the damping adjusting nut (9), and the buffer spring (8) is controlled to compress or extend by adjusting the axial position of the damping adjusting nut (9), so that the buffer stiffness of the buffer spring (8) is adjusted.
9. The steering wheel limiting and supporting device for the whole vehicle bench test is characterized in that:
a second sleeve (4) is arranged between the first sleeve (3) and the third sleeve (6);
the first sleeve (3), the second sleeve (4) and the third sleeve (6) are sequentially in threaded connection along the axial direction.
10. The steering wheel limiting and supporting device for the whole vehicle bench test is characterized in that:
a ball head support leg (10) is arranged at the bottom of the support rod (7);
the support rod (7) is supported and fixed on the floor in the vehicle through a ball head support leg (10).
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121335095.4U CN215677574U (en) | 2021-06-16 | 2021-06-16 | Steering wheel limiting and supporting device for whole vehicle bench test |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121335095.4U CN215677574U (en) | 2021-06-16 | 2021-06-16 | Steering wheel limiting and supporting device for whole vehicle bench test |
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| CN215677574U true CN215677574U (en) | 2022-01-28 |
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| CN202121335095.4U Active CN215677574U (en) | 2021-06-16 | 2021-06-16 | Steering wheel limiting and supporting device for whole vehicle bench test |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114814421A (en) * | 2022-04-20 | 2022-07-29 | 中国第一汽车股份有限公司 | Vehicle speed adjusting device and method |
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2021
- 2021-06-16 CN CN202121335095.4U patent/CN215677574U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114814421A (en) * | 2022-04-20 | 2022-07-29 | 中国第一汽车股份有限公司 | Vehicle speed adjusting device and method |
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