CN102092414A - Automotive steering system - Google Patents
Automotive steering system Download PDFInfo
- Publication number
- CN102092414A CN102092414A CN 201110024860 CN201110024860A CN102092414A CN 102092414 A CN102092414 A CN 102092414A CN 201110024860 CN201110024860 CN 201110024860 CN 201110024860 A CN201110024860 A CN 201110024860A CN 102092414 A CN102092414 A CN 102092414A
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- Prior art keywords
- support
- wing plate
- main body
- steering system
- steering
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- 210000005056 cell body Anatomy 0.000 claims description 13
- 238000003466 welding Methods 0.000 claims description 6
- 230000003467 diminishing effect Effects 0.000 claims description 3
- 230000015572 biosynthetic process Effects 0.000 claims description 2
- 238000000034 method Methods 0.000 abstract description 3
- 238000009434 installation Methods 0.000 abstract 1
- 230000005284 excitation Effects 0.000 description 4
- 230000002159 abnormal effect Effects 0.000 description 2
- 238000005452 bending Methods 0.000 description 2
- 230000008878 coupling Effects 0.000 description 2
- 238000010168 coupling process Methods 0.000 description 2
- 238000005859 coupling reaction Methods 0.000 description 2
- 238000000465 moulding Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000004364 calculation method Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000006870 function Effects 0.000 description 1
- 230000000977 initiatory effect Effects 0.000 description 1
- 238000011900 installation process Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000012946 outsourcing Methods 0.000 description 1
- 230000008447 perception Effects 0.000 description 1
- 230000002787 reinforcement Effects 0.000 description 1
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Abstract
The invention discloses an automotive steering system which can effectively improve the NVH (noise vibration and harshness) capability of an automobile. The automotive steering system comprises a dashboard beam, a steering wheel and a steering-wheel steering column, wherein the steering-wheel steering column is connected with the steering wheel, the two ends of the dashboard beam are connected with an automotive body by a beam-fixed support, the middle part of the dashboard beam is fixedly connected with an automotive fore-cabin and the steering-wheel steering column by a fore-cabin connecting support, and the beam-fixed support and the fore-cabin connecting support are both in a box-type structure which is provided with a main body and two wing plates arranged at the two sides of the main body. In the automotive steering system disclosed by the invention, the parts of the automotive steering system are connected and fixed by box-type supports, and the rigidity of each box-type support is larger, thereby ensuring that the natural frequency of the steering system does not significantly decrease in the process of installation so as to meet the NVH capability of the steering system in an integral automobile state.
Description
Technical field
The invention belongs to field of automobile, specially refer to a kind of automobile steering system.
Background technology
The mechanism that is used for changing travel direction on the automobile is called automotive steering, and steering swivel system generally is made up of bearing circle, steering column, dashboard cross member etc.In the vehicle ' process, chaufeur makes wheel flutter deflection certain angle to realize turning to function by controlling party to the moving steering swivel system of dribbling, so the steering system vibration characteristic can the direction of passage dish by the direct perception of chaufeur, one of particularly in idling operation, the steering system vibration characteristic is automobile NVH(Noise Vibration Harshness) key factor of performance.
Driving engine second order excitation frequency when the reason of initiation bearing circle idling vibration is idling overlaps with the model frequency of bearing circle itself, therefore, how to avoid the coupling of the natural frequency of driving source and steering swivel system own improve the key of automobile steering system NVH performance.In general, the idling exciting frequency of driving source is fixed, and the model frequency of steering swivel system itself also is easier to controlled (outsourcing piece, performance requriements control).Exciting mainly is its two-stage reciprocating inertia force during engine idle, and its frequency is relevant with vehicle boarded engine speed and number of cylinders.Second order frequency computing formula during engine idle is:
(1)
The calculation on Natural Frequency formula of bearing circle own is:
In the formula (2)
Be cireular frequency; K is a rigidity; M is a quality.
The engine idle rotating speed is generally 700-1000RPM, 4 cylinder engines the idling exciting frequency be about 20-35Hz, the exciting frequency of 6 cylinders is about 35-50Hz, excitation frequency under the engine idling condition is higher than the road excitation frequency when travelling, for avoiding steering swivel system under idling, to produce resonance, be greater than high idle speed exciting frequency (35Hz or 50Hz) to the requirement of its natural frequency.
But in actual production, steering swivel system and body contact zone (crossbeam two ends and front deck connection location) the bending and molding spares that adopt more, this connection mode has following shortcoming: 1, the steering swivel system natural frequency can produce significantly and descend, and might produce the idling jitter phenomenon; 2, whole steering swivel system also has local mode, and abnormal sound can appear in driving process; 3, steering system stiffness is low, causes well return of bearing circle.
Summary of the invention
The objective of the invention is to propose a kind of automobile steering system that can effectively improve automobile NVH performance.
Automobile steering system of the present invention comprises that dashboard cross member, bearing circle reach and bearing circle bonded assembly wheel steering tubing string, the two ends of described dashboard cross member are connected with auto body by the crossbeam fixed support, the middle part of dashboard cross member connects support and automobile front chamber and wheel steering tubing string by front deck and is connected and fixed, and key is that described crossbeam fixed support is connected support and is the box structure that has main body and be arranged on the wing plate of main body both sides with front deck.
Compare with traditional bending and molding spare, the connection support of box structure is not when weight can obviously increase, increased sectional area greatly, the coupling stiffness height, therefore mode is higher, can effectively reduce situations such as steering swivel system local mode and various vibration abnormal sounds, promptly can significantly not reduce the natural frequency of steering swivel system own, it can be coupled with the excitation frequency under the engine idling condition because of connection; Also improve the rigidity of whole steering swivel system simultaneously, helped improving the bearing circle return.
The support bracket fastened main body of described crossbeam and wing plate form cell body, and the edge of described wing plate is provided with fixed orifice, a side wing be provided with can hold, the recess of spacing dashboard cross member, described recess is vertical with the bearing of trend of described cell body.The setting of recess not only can spacing dashboard cross member, and it is vertical with the bearing of trend of described cell body to also help reinforcement integral rigidity, particularly recess, can more firmly support, fixer dash board crossbeam.
The support bracket fastened wing plate welding of the two ends of described dashboard cross member and crossbeam is fixing, and both form an integral body, help improving integral rigidity.
Main body and wing plate that described front deck connects support form the diminishing cell body of sectional area, and the edge of described wing plate is provided with flanging.The direction of flanging is approximate parallel with main body, and the box structure of flanging, wing plate and main body formation is just more firm like this, and rigidity is stronger.
Be expendable weight, satisfy the body lightening designing requirement, the main body that described front deck connects support is provided with lightening hole.
For improving rigidity, the main body of described front deck connection support and wing plate are by being bent to form several reinforced ribs.
Described wheel steering tubing string is installed in the cell body that main body that front deck connects support and wing plate form, and front deck connects the flanging of the wing plate of support to be fixed with dashboard cross member, automobile front chamber welding respectively.Be welded with and be beneficial to the raising integral rigidity.
Automobile steering system of the present invention is connected and fixed each parts by cassette rack, and himself rigidity is bigger, can guarantee that the natural frequency of steering swivel system can significantly not descend in installation process, to satisfy the NVH performance of steering swivel system under whole vehicle state.
Description of drawings
Fig. 1 is the integral structure scheme drawing of automobile steering system of the present invention.
Fig. 2, the 3rd, the structural representation of support bracket fastened two angles of the crossbeam of automobile steering system of the present invention.
Fig. 4 is the structural representation that the front deck of automobile steering system of the present invention connects support.
The specific embodiment
Describe the present invention in detail below in conjunction with specific embodiments and the drawings.
Embodiment 1:
As shown in the figure, the automobile steering system of present embodiment comprises that dashboard cross member 1, bearing circle 2 reach and bearing circle bonded assembly wheel steering tubing string 3, the two ends of dashboard cross member 1 are connected with auto body by crossbeam fixed support 4, the middle part of dashboard cross member 1 connects support 5 by front deck and is connected and fixed with automobile front chamber and wheel steering tubing string 3, and crossbeam fixed support 4 is connected support 5 and is the box structure that has main body and be arranged on the wing plate of main body both sides with front deck.
The main body 41 of crossbeam fixed support 4 forms cell body with wing plate 42, the edge of wing plate 42 is provided with fixed orifice 43, one side wing be provided with can hold, the recess 44 of spacing dashboard cross member, recess 44 is vertical with the bearing of trend of described cell body, support bracket fastened wing plate 42 welding of the two ends of dashboard cross member 1 and crossbeam are fixing, both form an integral body, help improving integral rigidity.
The main body 51 that front deck connects support 5 forms the diminishing cell body of sectional area with wing plate 52, and the edge of wing plate 52 is provided with flanging 53.The direction of flanging 53 is approximate parallel with main body 51, and main body 51 is provided with lightening hole 54, and main body 51 and wing plate 52 are by being bent to form several reinforced ribs 55.
Wheel steering tubing string 3 is installed in the cell body that main body 51 that front deck connects support and wing plate 52 form, and it is fixing with dashboard cross member 1, automobile front chamber welding respectively that front deck connects the flanging 53 of wing plate of support.
Claims (7)
1. automobile steering system, comprise that dashboard cross member, bearing circle reach and bearing circle bonded assembly wheel steering tubing string, the two ends of described dashboard cross member are connected with auto body by the crossbeam fixed support, the middle part of dashboard cross member connects support and automobile front chamber and wheel steering tubing string by front deck and is connected and fixed, and it is characterized in that described crossbeam fixed support is connected support and is the box structure that has main body and be arranged on the wing plate of main body both sides with front deck.
2. automobile steering system according to claim 1, it is characterized in that support bracket fastened main body of described crossbeam and wing plate form cell body, the edge of described wing plate is provided with fixed orifice, one side wing be provided with can hold, the recess of spacing dashboard cross member, described recess is vertical with the bearing of trend of described cell body.
3. automobile steering system according to claim 1 and 2 is characterized in that the two ends of described dashboard cross member and the support bracket fastened wing plate welding of crossbeam are fixing.
4. automobile steering system according to claim 1 is characterized in that described front deck connects the main body and the diminishing cell body of wing plate formation sectional area of support, and the edge of described wing plate is provided with flanging.
5. automobile steering system according to claim 4 is characterized in that the main body of described front deck connection support is provided with lightening hole.
6. automobile steering system according to claim 5 is characterized in that described front deck connects the main body of support and wing plate by being bent to form several reinforced ribs.
7. according to claim 4 or 5 or 6 described automobile steering systems, it is characterized in that described wheel steering tubing string is installed in the cell body that main body that front deck connects support and wing plate form, front deck connects the flanging of the wing plate of support to be fixed with dashboard cross member, automobile front chamber welding respectively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110024860 CN102092414A (en) | 2011-01-24 | 2011-01-24 | Automotive steering system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110024860 CN102092414A (en) | 2011-01-24 | 2011-01-24 | Automotive steering system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102092414A true CN102092414A (en) | 2011-06-15 |
Family
ID=44125729
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201110024860 Pending CN102092414A (en) | 2011-01-24 | 2011-01-24 | Automotive steering system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102092414A (en) |
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102411651A (en) * | 2011-08-11 | 2012-04-11 | 奇瑞汽车股份有限公司 | Test method for optimizing parking steering-force fluctuation performance of vehicle |
| CN102490778A (en) * | 2011-11-21 | 2012-06-13 | 奇瑞汽车股份有限公司 | Automobile steering column installation structure |
| CN102963441A (en) * | 2012-11-30 | 2013-03-13 | 芜湖市顺昌汽车配件有限公司 | Automobile dashboard beam assembly |
| CN104736422A (en) * | 2012-06-07 | 2015-06-24 | 标致·雪铁龙汽车公司 | Dashboard cross member with pared-down steering column attachment |
| CN105667603A (en) * | 2016-03-04 | 2016-06-15 | 北京长安汽车工程技术研究有限责任公司 | Automobile steering support assembly |
| CN105946982A (en) * | 2016-06-30 | 2016-09-21 | 奇瑞商用车（安徽）有限公司 | Automobile instrument crossbeam mounting support assembly structure |
| CN107719460A (en) * | 2017-11-17 | 2018-02-23 | 观致汽车有限公司 | Vibration damping steering column mounting bracket and the CCB systems and automobile for including it |
| CN107867335A (en) * | 2016-09-23 | 2018-04-03 | 铃木株式会社 | Turn to the peripheral structure of supporting member |
| CN108082268A (en) * | 2017-12-15 | 2018-05-29 | 重庆长安汽车股份有限公司 | Automobile steering supporting Guan Liang |
| CN112550477A (en) * | 2020-12-11 | 2021-03-26 | 奇瑞汽车股份有限公司 | Instrument board crossbeam fixed bolster |
| CN115195876A (en) * | 2022-08-23 | 2022-10-18 | 浙江吉利控股集团有限公司 | Instrument board crossbeam structure and vehicle |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3863731A (en) * | 1973-04-19 | 1975-02-04 | Toyota Motor Co Ltd | Instrument panel supporting construction of vehicles |
| US4826234A (en) * | 1986-09-26 | 1989-05-02 | Mazda Motor Corporation | Steering assembly supporting structure of a motor vehicle |
-
2011
- 2011-01-24 CN CN 201110024860 patent/CN102092414A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3863731A (en) * | 1973-04-19 | 1975-02-04 | Toyota Motor Co Ltd | Instrument panel supporting construction of vehicles |
| US4826234A (en) * | 1986-09-26 | 1989-05-02 | Mazda Motor Corporation | Steering assembly supporting structure of a motor vehicle |
Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102411651A (en) * | 2011-08-11 | 2012-04-11 | 奇瑞汽车股份有限公司 | Test method for optimizing parking steering-force fluctuation performance of vehicle |
| CN102490778A (en) * | 2011-11-21 | 2012-06-13 | 奇瑞汽车股份有限公司 | Automobile steering column installation structure |
| CN104736422A (en) * | 2012-06-07 | 2015-06-24 | 标致·雪铁龙汽车公司 | Dashboard cross member with pared-down steering column attachment |
| CN104736422B (en) * | 2012-06-07 | 2016-12-21 | 标致·雪铁龙汽车公司 | Simplify the dashboard cross member that steering column is fixing |
| CN102963441A (en) * | 2012-11-30 | 2013-03-13 | 芜湖市顺昌汽车配件有限公司 | Automobile dashboard beam assembly |
| CN105667603A (en) * | 2016-03-04 | 2016-06-15 | 北京长安汽车工程技术研究有限责任公司 | Automobile steering support assembly |
| CN105946982A (en) * | 2016-06-30 | 2016-09-21 | 奇瑞商用车（安徽）有限公司 | Automobile instrument crossbeam mounting support assembly structure |
| CN107867335A (en) * | 2016-09-23 | 2018-04-03 | 铃木株式会社 | Turn to the peripheral structure of supporting member |
| CN107719460A (en) * | 2017-11-17 | 2018-02-23 | 观致汽车有限公司 | Vibration damping steering column mounting bracket and the CCB systems and automobile for including it |
| CN108082268A (en) * | 2017-12-15 | 2018-05-29 | 重庆长安汽车股份有限公司 | Automobile steering supporting Guan Liang |
| CN112550477A (en) * | 2020-12-11 | 2021-03-26 | 奇瑞汽车股份有限公司 | Instrument board crossbeam fixed bolster |
| CN115195876A (en) * | 2022-08-23 | 2022-10-18 | 浙江吉利控股集团有限公司 | Instrument board crossbeam structure and vehicle |
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Application publication date: 20110615 |