CN104691269B - Method and system for designing stabilizer bar of automotive suspension - Google Patents
Method and system for designing stabilizer bar of automotive suspension Download PDFInfo
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- CN104691269B CN104691269B CN201310649152.XA CN201310649152A CN104691269B CN 104691269 B CN104691269 B CN 104691269B CN 201310649152 A CN201310649152 A CN 201310649152A CN 104691269 B CN104691269 B CN 104691269B
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Abstract
The invention discloses a method for designing a stabilizer bar of an automotive suspension. The method comprises the steps of: (a) setting the installing position of the suspension stabilizer bar and the length and position data of a connecting rod according to predefined shapes and installing positions of all parts of the automotive suspension; (b) building a DMU model according to the set data to generate motion envelopes; (c) laminating the motion envelopes to obtain a maximum value, setting the shape of the suspension stabilizer bar, and obtaining a gap between the suspension stabilizer bar and the maximal motion envelope; (d) judging if any value of the obtained gap is greater than a predefined safety gap, if so, operating the step (e), if not, returning to the step (b) after resetting the installing position of the suspension stabilizer bar and the length and position data of the connecting rod; and (e) finishing the design. The invention further discloses a system for designing the stabilizer bar of the automotive suspension. The method and the system simplify the design steps of the suspension stabilizer bar, shorten the design period, and improve the shape design level of the suspension stabilizer bar.
Description
Technical field
The present invention relates to automobile technical field, more particularly to a kind of method and system of design vehicle suspension stabiliser bar.
Background technology
Under normal circumstances, in order to reduce automotive suspension offset frequency improving the ride comfort of running car, can be by automotive suspension
The ratio of vertical stiffness design is relatively low so that the roll angular rigidity design of automobile also than relatively low, cause automobile in row of turning
Larger vehicle roll angle is produced when sailing affects the stability of running car.In order to solve the above problems, at present before and after automobile
Employ on suspension suspension stabiliser bar design, and by suspension stabiliser bar come adjust automobile fore suspension and rear suspension roll angular rigidity it
Than obtaining the steering characteristic for needing.
During suspension design, the parts such as control arm, amortisseur are usually first designed, is then stayed according to these parts
Space arrangement suspension stabiliser bar, be this not only suspension stabiliser bar can make more complicated shape, and in suspension design
Under state, need to check the motion of the stabiliser bar when arranging suspension stabiliser bar, if the arbitrary parts of automotive suspension with
Motion between suspension stabiliser bar is interfered, it is necessary to redesign the stable rod-shape of suspension, and the motion that tries again again
Check, till moving normally between each parts of automotive suspension and suspension stabiliser bar.The shortcoming of this method for designing exists
In：The shape of suspension stabiliser bar and position are difficult to determine, and design efforts would is big and the cycle is long.
The content of the invention
The purpose of the embodiment of the present invention is to provide a kind of method and system of design vehicle suspension stabiliser bar, can be solved
In prior art, the shape of suspension stabiliser bar and position are difficult to determine, and design efforts would is big and the problem of cycle length.
In order to solve above-mentioned technical problem, a kind of method of design vehicle suspension stabiliser bar is embodiments provided,
The method comprising the steps of：
A, according to each shape and installation site about parts of predefined automotive suspension, suspension stabiliser bar is set
The length and position data of installation site and suspension stabilizer link；
B, according to the installation position data and length of connecting rod and position data of the suspension stabiliser bar, set up DMU models,
And according to the DMU models obtain the automotive suspension it is each about parts relative to the suspension stabiliser bar motion envelope；
C, the motion envelope superposition for generating is obtained into largest motion envelope, arrange described outstanding according to the largest motion envelope
The shape of frame stabiliser bar, and the suspension stabiliser bar and the largest motion envelope are obtained according to the shape of the suspension stabiliser bar
Between gap；
D, judge whether arbitrary gap between the suspension stabiliser bar and the largest motion envelope is both greater than predefined
Safety clearance, if it is, operation next step e；If it is not, then resetting the installation site of suspension stabiliser bar and hanging
Return to step b after the length and position data of frame stabilizer link；
The length and position of e, the shape of the acquisition suspension stabiliser bar and installation site and the suspension stabilizer link
Put；
Wherein, " the motion envelope superposition for generating is obtained into largest motion envelope, according to the maximum fortune in step c
Dynamic envelope arranges the shape of the suspension stabiliser bar " include：
The motion envelope superposition for generating is obtained into largest motion envelope, is obtained according to the largest motion envelope and can be arranged institute
The space of suspension stabiliser bar is stated, the shape of the suspension stabiliser bar is set in the space.
Wherein, before step a, methods described also includes step：The each shape about parts of pre-defined automotive suspension
Shape and installation site and each safety clearance about between parts and suspension stabiliser bar of the automotive suspension.
Wherein, " the arbitrary gap between the suspension stabiliser bar and the largest motion envelope is judged in step d
Whether predefined safety clearance is both greater than " include：
Judge whether the arbitrary gap between the suspension stabiliser bar and the largest motion envelope is all corresponding more than pre-
The each safety clearance about between parts and suspension stabiliser bar of the automotive suspension of definition.
Wherein, each relevant parts of the automotive suspension include subframe, control arm and amortisseur.
The embodiment of the present invention additionally provides a kind of system of design vehicle suspension stabiliser bar, and the system includes：Arrange single
Unit, first acquisition unit, second acquisition unit, judging unit and the 3rd acquiring unit；Wherein,
The setting unit, for according to each shape and installation site about parts of predefined automotive suspension,
The length and position data of the installation site and suspension stabilizer link of suspension stabiliser bar are set；
The first acquisition unit, for installation position data and length of connecting rod and positional number according to the stabiliser bar
According to, DMU models are set up, and it is steady relative to the suspension according to each relevant parts of the DMU models acquisition automotive suspension
The motion envelope of fixed pole；
The second acquisition unit, for will generate motion envelope superposition obtain largest motion envelope, according to it is described most
Big motion envelope arranges the shape of the suspension stabiliser bar, and it is stable to obtain the suspension according to the shape of the suspension stabiliser bar
Gap between bar and the largest motion envelope；
The judging unit, for judging that the arbitrary gap between the suspension stabiliser bar and the largest motion envelope is
No both greater than predefined safety clearance；
3rd acquiring unit, the shape and installation site and the suspension for obtaining the suspension stabiliser bar are steady
The length of fixed pole connecting rod and position.
Wherein, the system also includes default unit；
The default unit, for pre-defining automotive suspension each shape and installation site about parts and described
The each safety clearance about between parts and suspension stabiliser bar of automotive suspension.
In embodiments of the present invention, pre-define each shape and installation site and automobile about parts of automotive suspension
The each safety clearance about between parts and suspension stabiliser bar of suspension, according to above-mentioned predefined condition, arrangement suspension is steady
Length and the position of the installation site and suspension stabilizer link of fixed pole.After the completion of arrangement, DMU (Digital Mock- are set up
Up, digital prototype) model, and drive DMU models, obtain automotive suspension it is each about parts relative to suspension stabiliser bar motion
Envelope, the motion envelope for being obtained is superimposed together and obtains largest motion envelope, and hanged according to the largest motion envelope
The arrangement space of frame stabiliser bar, and the shape of suspension stabiliser bar is designed in the space, judge the suspension stabiliser bar with maximum fortune
Arbitrary gap (gap i.e. between suspension stabiliser bar and each envelope about component movement of automotive suspension) between dynamic envelope is
It is no to meet each safety clearance about between parts and suspension stabiliser bar of predefined automotive suspension, if be unsatisfactory for, weigh
Length and the position of the shape and suspension stabilizer link of the suspension stabiliser bar are designed newly, until meet safety clearance requirement being
Only.
Implement the embodiment of the present invention, can arrange outstanding under existence conditionses due to can rapidly and accurately obtain automotive suspension
The space of frame stabiliser bar, and shape and the position of suspension stabiliser bar are determined in space, only need to judge suspension stabiliser bar and automobile
Whether the gap between each envelope about component movement of suspension meets safety clearance set in advance requires, it is not necessary in suspension
Stabiliser bar and automotive suspension are each about check of being taken exercises between parts one by one, therefore simplify the design step of suspension stabiliser bar
Suddenly, the design cycle is shortened, while also improving the design level of the stable rod-shape of suspension.
Description of the drawings
In order to be illustrated more clearly that the embodiment of the present invention or technical scheme of the prior art, below will be to embodiment or existing
Accompanying drawing to be used needed for having technology description is briefly described, it should be apparent that, drawings in the following description are only this
Some embodiments of invention, for those of ordinary skill in the art, without having to pay creative labor, according to
These accompanying drawings obtain other accompanying drawings and still fall within scope of the invention.
Fig. 1 is the flow chart of the method for design vehicle suspension stabiliser bar provided in an embodiment of the present invention；
Fig. 2 is the structural representation of the system of design vehicle suspension stabiliser bar provided in an embodiment of the present invention.
Specific embodiment
In order that the objects, technical solutions and advantages of the present invention become more apparent, it is below in conjunction with drawings and Examples, right
The present invention is further elaborated.It should be appreciated that specific embodiment described herein is only to explain the present invention, and
It is not used in the restriction present invention.
As shown in figure 1, in the embodiment of the present invention, proposing a kind of method of design vehicle suspension stabiliser bar, methods described bag
Include following steps：
Step S101, according to each shape and installation site about parts of predefined automotive suspension, suspension is set
The length and position data of the installation site and suspension stabilizer link of stabiliser bar；
Before step S101, also including each shape and installation site about parts of predefined automotive suspension with
And each safety clearance about between parts and suspension stabiliser bar of automotive suspension, i.e. suspension stabiliser bar are each with automotive suspension relevant
The non-interference minimum clearance of parts.Wherein, each relevant parts of automotive suspension include subframe, control arm and amortisseur etc.
Parts, each safety clearance about between parts and suspension stabiliser bar of automotive suspension may not phases according to actual needs
Together.
Automotive wheel is fixed under a certain state, all parts of automotive suspension are all geo-stationaries, are defined
The shape of above-mentioned these automotive suspension parts, length, position coordinateses etc. and automotive suspension are each steady about parts and suspension
Safety clearance between fixed pole, then carries out the arrangement work of suspension stabiliser bar, set suspension stabiliser bar installation site and
The length and position data of suspension stabilizer link.
Step S102, according to it is described arrange suspension stabiliser bar installation site and suspension stabilizer link length and position
Data are put, DMU models is set up, and each relevant parts of the automotive suspension is obtained relative to described outstanding according to the DMU models
The motion envelope of frame stabiliser bar；
According to the length of the installation site and suspension stabilizer link of suspension stabiliser bar set in step S101 and
Position data, sets up DMU models in design software and is analyzed, and runs DMU models, obtains each relevant parts of automotive suspension
Relative to the motion envelope of suspension stabiliser bar.Wherein, design software not only includes CATIA (Computer Aided Tri-
Dimensional Interactive Application, computer-aided three-dimensional interactive application) software, also including other
The design software of same or similar function can be realized with CATIA softwares.
In embodiments of the present invention, it is possible to use CATIA design softwares set up DMU models, record automotive suspension is each relevant
Each position of parts in motor process can obtain the motion envelope of the sprung parts, the now fixation in motor process
Part is suspension stabiliser bar, and the fixture of other common DMU models is vehicle body.
Step S103, by generate motion envelope superposition obtain largest motion envelope, set according to the largest motion envelope
The shape of the suspension stabiliser bar is put, and the suspension stabiliser bar and the maximum are obtained according to the shape of the suspension stabiliser bar
Gap between motion envelope；
The motion envelope of generation is superimposed and obtains largest motion envelope, maximum fortune is analyzed by DMU models
Dynamic envelope, and the space that can arrange suspension stabiliser bar is obtained, designer can arrange the shape of suspension stabiliser bar in the space
Shape, when suspension stabiliser bar shape design complete after, using the survey tool in design software measure suspension stabiliser bar with
The each gap about between parts and suspension stabiliser bar in each gap between largest motion envelope, i.e. automotive suspension.
Step S104, judge whether the arbitrary gap between the suspension stabiliser bar and the largest motion envelope is both greater than
Predefined safety clearance, if it is, operation next step S105, if it is not, then returning step after operation next step S106
Rapid S102.
In this step, if due between each parts and suspension stabiliser bar predefined safety clearance it is different, need
Judge whether the arbitrary gap between the suspension stabiliser bar and the largest motion envelope is all corresponding more than predefined institute
State each safety clearance about between parts and suspension stabiliser bar of automotive suspension.
The length of step S105, the shape of the acquisition suspension stabiliser bar and installation site and the suspension stabilizer link
Degree and position.
The length and positional number of step S106, the installation site for resetting suspension stabiliser bar and suspension stabilizer link
According to.
In embodiments of the present invention, judge whether the arbitrary gap between suspension stabiliser bar and largest motion envelope all meets
Safety clearance set in advance requires, wherein needing between relevant component movement envelope each to suspension stabiliser bar and automotive suspension
Gap investigated correspondingly, if wherein have a gap less than safety clearance set in advance be accomplished by operation step
Rapid S106：Return to after the length and position data of the installation site and suspension stabilizer link that reset suspension stabiliser bar
Step S102, then arrange suspension stabiliser bar, the shape of suspension stabiliser bar is set again and suspension stabiliser bar and automotive suspension is reexamined
Gap between each envelope about component movement, until arbitrary gap of all acquisitions is all more than predefined automobile accordingly
The each safety clearance about between parts and suspension stabiliser bar of suspension, that is, meet suspension stabiliser bar each with automotive suspension relevant zero
The requirement of all non-interference minimum clearance of part, therefore the cycle is shorter and can quickly determine the shape of suspension stabiliser bar
And position.And the fixture of other common DMU models is vehicle body, therefore judging suspension stabiliser bar each with automotive suspension relevant zero
When part motion envelope is superimposed the gap between the largest motion envelope for obtaining, needs respectively have in suspension stabiliser bar and automotive suspension
Close and take exercises one by one checks between parts, workload is greatly and the shape and position of cycle length and suspension stabiliser bar is difficult to really
It is fixed.
In embodiments of the present invention, pre-define each shape and installation site and automobile about parts of automotive suspension
The each safety clearance about between parts and suspension stabiliser bar of suspension, according to above-mentioned predefined condition, arrangement suspension is steady
Length and the position of the installation site and suspension stabilizer link of fixed pole.After the completion of arrangement, DMU (Digital Mock- are set up
Up, digital prototype) model, and drive DMU models, obtain automotive suspension it is each about parts relative to suspension stabiliser bar motion
Envelope, the motion envelope for being obtained is superimposed together and obtains largest motion envelope, and hanged according to the largest motion envelope
The arrangement space of frame stabiliser bar, and the shape of suspension stabiliser bar is designed in the space, judge the suspension stabiliser bar with maximum fortune
Arbitrary gap (gap i.e. between the suspension stabiliser bar and each envelope about component movement of automotive suspension) between dynamic envelope
Whether predefined automotive suspension each safety clearance about parts and suspension stabiliser bar between is all met, if be unsatisfactory for,
Length and the position of the shape and suspension stabilizer link of the suspension stabiliser bar are redesigned then, until meet safety clearance will
Till asking.
Implement the embodiment of the present invention, can arrange outstanding under existence conditionses due to can rapidly and accurately obtain automotive suspension
The space of frame stabiliser bar, and shape and the position of suspension stabiliser bar are determined in space, only need to judge suspension stabiliser bar and automobile
Whether the gap between each envelope about component movement of suspension meets safety clearance set in advance requires, it is not necessary in suspension
Stabiliser bar and automotive suspension are each about check of being taken exercises between parts one by one, therefore simplify the design step of suspension stabiliser bar
Suddenly, the design cycle is shortened, while also improving the design level of the stable rod-shape of suspension.
As described in Figure 2, in the embodiment of the present invention, it is also proposed that a kind of system of design vehicle suspension stabiliser bar, the system bag
Include：Setting unit 220, first acquisition unit 230, second acquisition unit 240, judging unit 250 and the 3rd acquiring unit 260；
Wherein,
The setting unit 220, for according to each shape and the installation position about parts of predefined automotive suspension
Put, the length and position data of the installation site and suspension stabilizer link of suspension stabiliser bar is set；
The first acquisition unit 230, for installation position data and length of connecting rod according to the suspension stabiliser bar
And position data, DMU models are set up, and each relevant parts of the automotive suspension are obtained relative to institute according to the DMU models
State the motion envelope of suspension stabiliser bar；
The second acquisition unit 240, the motion envelope superposition for generating obtain largest motion envelope, according to described
Largest motion envelope arranges the shape of the suspension stabiliser bar, and it is steady to obtain the suspension according to the shape of the suspension stabiliser bar
Gap between fixed pole and the largest motion envelope；
The judging unit 250, for judge between the suspension stabiliser bar and the largest motion envelope it is arbitrary between
Whether gap is both greater than predefined safety clearance；
3rd acquiring unit 260, for obtaining the shape and installation site of the suspension stabiliser bar and described outstanding
The length of frame stabilizer link and position.
The system also includes：Default unit 210, for pre-defining each shape and the installation about parts of automotive suspension
Position and each safety clearance about between parts and suspension stabiliser bar of the automotive suspension.
In embodiments of the present invention, the system of design vehicle suspension stabiliser bar is pre-defined first in default unit 210
The each shape and installation site and automotive suspension about parts of automotive suspension it is each about parts and suspension stabiliser bar it
Between safety clearance, according to each shape and installation site about parts of predefined automotive suspension, in setting unit 220
The length and position data of the middle installation site and suspension stabilizer link that suspension stabiliser bar is set；Secondly, according to above-mentioned institute
The data of setting, set up system DMU models, and automotive suspension each relevant zero are obtained in first acquisition unit 230 according to DMU models
Motion envelope of the part relative to suspension stabiliser bar；Then, the motion envelope of above-mentioned generation being superimposed, acquisition is maximum to transport
Dynamic envelope, arranges the shape of suspension stabiliser bar according to above-mentioned largest motion envelope, and according to the shape of suspension stabiliser bar second
The gap between suspension stabiliser bar and largest motion envelope is obtained in acquiring unit 240；Then, judged according to judging unit 250
Whether the arbitrary gap between suspension stabiliser bar and largest motion envelope is both greater than predefined safety clearance, if it is,
The length and position of the shape and installation site and suspension stabilizer link of suspension stabiliser bar are obtained in 3rd acquiring unit 260
Put, if it is not, then after resetting the length and position data of installation site and suspension stabilizer link of suspension stabiliser bar
Return first acquisition unit 230, until the gap between suspension stabiliser bar and each envelope about component movement of automotive suspension all
Till meeting predefined safety clearance requirement.
It should be noted that in said system embodiment, each included system unit simply enters according to function logic
What row was divided, but above-mentioned division is not limited to, as long as corresponding function can be realized；In addition, each functional unit
Specific name is also only to facilitate mutually differentiation, is not limited to protection scope of the present invention.
One of ordinary skill in the art will appreciate that all or part of step in realizing above-described embodiment method can be
Instruct related hardware to complete by program, described program can be stored in a computer read/write memory medium,
Described storage medium, such as ROM/RAM, disk, CD etc..
Presently preferred embodiments of the present invention is the foregoing is only, not to limit the present invention, all essences in the present invention
Any modification, equivalent and improvement made within god and principle etc., should be included within the scope of the present invention.
Claims (6)
1. a kind of method of design vehicle suspension stabiliser bar, it is characterised in that methods described includes：
A, the installation that suspension stabiliser bar according to each shape and installation site about parts of predefined automotive suspension, is set
Position and the length and position data of suspension stabilizer link；
B, according to the installation position data and length of connecting rod and position data of the suspension stabiliser bar, set up DMU models, and root
According to the DMU models obtain the automotive suspension it is each about parts relative to the suspension stabiliser bar motion envelope；
C, the motion envelope superposition for generating is obtained into largest motion envelope, the suspension is arranged according to the largest motion envelope steady
The shape of fixed pole, and obtained between the suspension stabiliser bar and the largest motion envelope according to the shape of the suspension stabiliser bar
Gap；
D, judge the whether both greater than predefined safety in arbitrary gap between the suspension stabiliser bar and the largest motion envelope
Gap, if it is, operation next step e；If it is not, then the installation site and suspension that reset suspension stabiliser bar are stable
Return to step b after the length and position data of bar connecting rod；
The length and position of e, the shape of the acquisition suspension stabiliser bar and installation site and the suspension stabilizer link；
Wherein, " the motion envelope superposition for generating is obtained into largest motion envelope, according to the largest motion bag in step c
Network arranges the shape of the suspension stabiliser bar " include：
The motion envelope superposition for generating is obtained into largest motion envelope, is obtained according to the largest motion envelope and can be arranged described outstanding
The space of frame stabiliser bar, arranges the shape of the suspension stabiliser bar in the space.
2. the method for claim 1, it is characterised in that before step a, methods described also include step：It is fixed in advance
The each shape and installation site and the automotive suspension about parts of adopted automotive suspension is each stable about parts and suspension
Safety clearance between bar.
3. method as claimed in claim 2, it is characterised in that in step d " judge the suspension stabiliser bar with it is described
Whether the arbitrary gap between largest motion envelope is both greater than predefined safety clearance " include：
Judge whether the arbitrary gap between the suspension stabiliser bar and the largest motion envelope is all corresponding more than predefined
The each safety clearance about between parts and suspension stabiliser bar of the automotive suspension.
4. method as claimed in claim 2, it is characterised in that each relevant parts of the automotive suspension include subframe, control
Arm processed and amortisseur.
5. a kind of system of design vehicle suspension stabiliser bar, it is characterised in that the system includes：Setting unit, first obtain
Unit, second acquisition unit, judging unit and the 3rd acquiring unit；Wherein,
The setting unit, for according to each shape and installation site about parts of predefined automotive suspension, arranging
The length and position data of the installation site and suspension stabilizer link of suspension stabiliser bar；
The first acquisition unit, for installation position data and length of connecting rod and positional number according to the suspension stabiliser bar
According to, DMU models are set up, and it is steady relative to the suspension according to each relevant parts of the DMU models acquisition automotive suspension
The motion envelope of fixed pole；
The second acquisition unit, the motion envelope superposition for generating obtain largest motion envelope, according to the maximum fortune
Dynamic envelope arranges the shape of the suspension stabiliser bar, and according to the shape of the suspension stabiliser bar obtain the suspension stabiliser bar with
Gap between the largest motion envelope；
The judging unit, for whether all to judge the arbitrary gap between the suspension stabiliser bar and the largest motion envelope
More than predefined safety clearance；
3rd acquiring unit, for obtaining the shape and installation site and the suspension stabiliser bar of the suspension stabiliser bar
The length of connecting rod and position.
6. system as claimed in claim 5, it is characterised in that the system also includes default unit；
The default unit, for pre-defining each shape and installation site and the automobile about parts of automotive suspension
The each safety clearance about between parts and suspension stabiliser bar of suspension.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201310649152.XA CN104691269B (en) | 2013-12-06 | 2013-12-06 | Method and system for designing stabilizer bar of automotive suspension |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310649152.XA CN104691269B (en) | 2013-12-06 | 2013-12-06 | Method and system for designing stabilizer bar of automotive suspension |
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| CN104691269A CN104691269A (en) | 2015-06-10 |
| CN104691269B true CN104691269B (en) | 2017-04-19 |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN105082925B (en) * | 2015-09-18 | 2017-06-06 | 北汽福田汽车股份有限公司 | Stabilizer bar connecting bar and its manufacture method and vehicle |
| CN112339884B (en) * | 2020-09-25 | 2021-10-29 | 广州汽车集团股份有限公司 | Stabilizer bar arrangement position determining method and device and readable storage medium |
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| JP2003167940A (en) * | 2001-11-29 | 2003-06-13 | Nissan Motor Co Ltd | Design method of positioning tool |
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| JP2003167940A (en) * | 2001-11-29 | 2003-06-13 | Nissan Motor Co Ltd | Design method of positioning tool |
| JP2003228595A (en) * | 2002-02-05 | 2003-08-15 | Matsushita Electric Ind Co Ltd | Database and method for designing integrated circuit device |
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