CN104848831B - The theoretical side tilt angle measuring method and inclination check method of vehicle cab - Google Patents
The theoretical side tilt angle measuring method and inclination check method of vehicle cab Download PDFInfo
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- CN104848831B CN104848831B CN201410707379.XA CN201410707379A CN104848831B CN 104848831 B CN104848831 B CN 104848831B CN 201410707379 A CN201410707379 A CN 201410707379A CN 104848831 B CN104848831 B CN 104848831B
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- elastic component
- cabin
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- pin joint
- tilt angle
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
- G01B21/00—Measuring arrangements or details thereof, where the measuring technique is not covered by the other groups of this subclass, unspecified or not relevant
- G01B21/22—Measuring arrangements or details thereof, where the measuring technique is not covered by the other groups of this subclass, unspecified or not relevant for measuring angles or tapers; for testing the alignment of axes
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- General Physics & Mathematics (AREA)
- Body Structure For Vehicles (AREA)
- A Measuring Device Byusing Mechanical Method (AREA)
Abstract
The present invention discloses a kind of theoretical side tilt angle measuring method of vehicle cab and rolls check method.The theoretical side tilt angle measuring method includes：Step one, the respective moving region of the pin joint of the first elastic component and the second elastic component of driver's cabin both sides is determined；Step 2, using any point in the moving region of driver's cabin side as the center of circle, draw circular arc by radius of the distance between the first elastic component of the driver's cabin both sides when driver's cabin is horizontal and the pin joint of the second elastic component, the coincidence line of the moving region of the circular arc and driver's cabin opposite side as driver's cabin opposite side the first elastic component and the second elastic component pin joint movement locus；Angle between the line and horizontal plane of arbitrfary point on step 3, the center of circle and movement locus is the theoretical side tilt angle of driver's cabin.The theoretical side tilt angle measuring method is capable of determining that the theoretical side tilt angle scope of driver's cabin, can be used for carrying out the driver's cabin of different type vehicle good inclination check accordingly.
Description
Technical field
Verification Technology field is rolled the present invention relates to vehicle cab, in particular it relates to a kind of theory of vehicle cab
Side tilt angle measuring method, and a kind of vehicle cab inclination check method.
Background technology
Generally, driver's cabin is in the assembling with vehicle frame, in order to improve comfortableness, is made by installing elastic device additional at driver's cabin
The influence of frame weaving and deformation to driver's cabin is reduced in suspension.However, this suspension is arranged on vehicle by side force
Under effect, or Ackermann steer angle, due to the effect of its centrifugal force, the driver's cabin of vehicle will occur one relative to main body of vehicle frame
The skew of degree is determined, so as to form driver's cabin down to the inclination of vehicle.
If the suspension arrangement of driver's cabin is improper, when driver's cabin is rolled, driver's cabin will be caused related to vehicle
Parts are interfered.Therefore, the suspension arrangement of driver's cabin is generally carried out by three below approach in the prior art：1) root
Set according to the practical experience of operating personnel；2) by studying mark post vehicle, mark post model data is used for reference, the later stage is in other vehicles
On suitably adjusted according to actual conditions；3) dynamic simulation is constantly carried out by the form of three-dimensional modeling, to filter out rationally
Configuration mode.
However, the result that above method is drawn is inaccurate, there is certain risk, it is, 1) and 2) being deposited in approach
In more human factors, so as to add uncertainty, and 3) need to be repeated in approach, so as to add assembly cost
And it is time-consuming.
The content of the invention
It is an object of the invention to provide a kind of theoretical side tilt angle measuring method of vehicle cab, the theoretical side tilt angle
Measuring method is capable of determining that the theoretical side tilt angle scope of driver's cabin, can be used for according to the theoretical side tilt angle scope to difference
The driver's cabin of type of vehicle carries out good inclination and checked.
To achieve these goals, the present invention provides a kind of theoretical side tilt angle measuring method of vehicle cab, wherein,
The arranged on left and right sides of the driver's cabin respectively symmetrically is provided with suspension system, and the suspension system includes the first elastic component, second
Elastic component and lower end are fixed to the rear overhang bearing diagonal on vehicle frame, and the lower end of first elastic component is hinged on vehicle frame, described
The two ends of second elastic component are respectively correspondingly hinged on the top of first elastic component and rear overhang bearing diagonal, so that three are hinged
The line formation triangular structure of point, the measuring method includes：
Step one, according to first elastic component of described driver's cabin the same side and the motion rail of second elastic component
Mark, determines the respective motion of the pin joint of first elastic component and second elastic component of the driver's cabin both sides respectively
Region；
Step 2, with the pin joint of first elastic component of the driver's cabin side and second elastic component
Any point in moving region is the center of circle, with described the of the driver's cabin side when the driver's cabin is horizontal
First elastic component of the pin joint of one elastic component and second elastic component and the driver's cabin opposite side and described
The distance between described pin joint of second elastic component is that radius draws circular arc, described the of the circular arc and the driver's cabin opposite side
The coincidence line of the moving region of the pin joint of one elastic component and second elastic component is used as the driver's cabin opposite side
The movement locus of the pin joint of first elastic component and second elastic component；
Angle between the line and horizontal plane of step 3, the center of circle and the arbitrfary point on the movement locus is described
The theoretical side tilt angle of driver's cabin.
It is by above-mentioned technical proposal, the first elastic component, the second elastic component and rear overhang of the suspension system of driver's cabin is oblique
The annexation of support is reduced to triangular structure, and determines the first elastic component and the second elastic component of driver's cabin both sides respectively
Pin joint moving region, then using any point in the moving region of side as the center of circle, with driver's cabin be in horizontal position
The distance between pin joint of the first elastic component of driver's cabin both sides and the second elastic component radius draws circular arc when putting, and is driven with determining
The movement locus of the first elastic component of room opposite side and the pin joint of the second elastic component is sailed, so as to draw the center of circle and the fortune exactly
Theoretical between line between arbitrfary point and horizontal plane on dynamic rail mark rolls angle, and theory inclination angle is driver's cabin
Relative to the angle of heel of vehicle frame under different inclination degree, therefore, the theoretical side tilt angle determined by this method accurately may be used
Lean on, can be used in carrying out the driver's cabin of different type vehicle good inclination check.
Preferably, the center of circle is set to first elastic component and second elastic component of the driver's cabin side
Minimum point of the pin joint in its described moving region, so that described the of the minimum point and the driver's cabin opposite side
Line and the horizontal plane between the peak of the movement locus of the pin joint of one elastic component and second elastic component
Between angle be formed as the theoretical maximum side tilt angle of the driver's cabin.
Preferably, first elastic component is configured to helical spring, and second elastic component is configured to shock absorber.
Preferably, the suspension system is the rear-suspending system of the driver's cabin.
Preferably, in the step one, it is determined as follows first elasticity of described driver's cabin the same side
The moving region of the pin joint of part and second elastic component：
Pin joint using the first elastic component lower end is the center of circle, with the maximum tension length of first elastic component and most
Small reduction length is that radius draws circular arc respectively, with the first of the pin joint that forms first elastic component and second elastic component
Range of movement；
Pin joint using second elastic component and the rear overhang bearing diagonal is the center of circle, with the maximum of second elastic component
Extension elongation and the minimum length that withdraws are that radius draws circular arc respectively, to form first elastic component and second elastic component
Second range of movement of pin joint；
The coincidence part of first range of movement and second range of movement is first elastic component and described
The moving region of the pin joint of two elastic components.
In addition, the present invention also provides a kind of inclination check method of vehicle cab, the inclination check method includes：
Set up driver's cabin three-dimensional mathematical model；
The home position determined using theoretical side tilt angle measuring method in accordance with the above and the theoretical side
Degree of tilt carries out inclination action to the driver's cabin three-dimensional mathematical model and checked.
Other features and advantages of the present invention will be described in detail in subsequent embodiment part.
Brief description of the drawings
Accompanying drawing is, for providing a further understanding of the present invention, and to constitute a part for specification, with following tool
Body embodiment is used to explain the present invention together, but is not construed as limiting the invention.In the accompanying drawings：
Fig. 1 is the side structure schematic view of the suspension system for the driver's cabin that the present invention is provided；
Fig. 2 is the schematic diagram that suspension system in Fig. 1 is reduced to triangular structure；
Fig. 3 is the theoretical angle of heel that vehicle cab is measured by the triangular structure shown in Fig. 2 that the present invention is provided
The principle schematic of degree.
Description of reference numerals
The elastic components of 1- first, the elastic components of 2- second, 3- rear overhang bearing diagonals, 4- suspension systems.
Embodiment
The embodiment of the present invention is described in detail below in conjunction with accompanying drawing.It should be appreciated that this place is retouched
The embodiment stated is merely to illustrate and explain the present invention, and is not intended to limit the invention.
In the present invention, in the case where not making opposite explanation, such as " upper and lower, left and right " will be with the present invention for the noun of locality used
Interface shown in the drawings for reference.
As shown in Figure 1,2 and 3, the invention provides a kind of theoretical side tilt angle measuring method of vehicle cab, wherein,
The arranged on left and right sides of the driver's cabin respectively symmetrically is provided with suspension system 4, wherein, Fig. 1 shows the side view of the suspension system
Structure, suspension system 4 includes the rear overhang bearing diagonal 3 that the first elastic component 1, the second elastic component 2 and lower end are fixed on vehicle frame, the
The lower end of one elastic component 1 is hinged on the vehicle frame, and the two ends of the second elastic component 2 are respectively correspondingly hinged on the first elastic component 1
With the top of rear overhang bearing diagonal 3 so that the line formation triangular structure of three pin joints, as shown in Figures 2 and 3, in driver's cabin
Left side three triangle structures of pin joint A, B and C point, three pin joint a, b and c points on the right side of driver's cabin constitute
Triangular structure, the measuring method includes：
Step one, according to first elastic component 1 of described driver's cabin the same side and the movement locus of the second elastic component 2, respectively
The first elastic component 1 of the driver's cabin both sides and the respective moving region of pin joint of the second elastic component 2 are determined, it is,
The moving region of B points and b points as shown in dash area in Fig. 2 and 3；
Step 2, with the motor area of the first elastic component 1 of the driver's cabin side and the pin joint of the second elastic component 2
Any point in domain is the center of circle, such as using the arbitrfary point in the moving region of B points as the center of circle, to be in water in the driver's cabin
First elastic component 1 of driver's cabin side when prosposition is put and the pin joint (B points) of the second elastic component 2 and the driver's cabin
The distance between first elastic component 1 of opposite side and the pin joint (b points) of the second elastic component 2 are that radius draws circular arc, the circle
The weight of the moving region of the pin joint (b points) of the first elastic component 1 and the second elastic component 2 of arc and the driver's cabin opposite side
Zygonema as the driver's cabin opposite side the first elastic component 1 and the second elastic component 2 the pin joint (b points) motion rail
Mark；
Angle α between the line and horizontal plane of step 3, the center of circle and the arbitrfary point on the movement locus is institute
State the theoretical side tilt angle of driver's cabin.
So, by the company of the first elastic component, the second elastic component and rear overhang bearing diagonal of the suspension system of driver's cabin homonymy
The relation of connecing is reduced to triangular structure, and determines the first elastic component of driver's cabin both sides and the pin joint of the second elastic component respectively
Moving region, then using any point in the moving region of side as the center of circle, driven when being horizontal with driver's cabin
The distance between first elastic component of room both sides and the pin joint of the second elastic component radius draw circular arc, to determine that driver's cabin is another
The movement locus of first elastic component of side and the pin joint of the second elastic component, so as to draw exactly on the center of circle and the movement locus
Arbitrfary point between line and horizontal plane between it is theoretical roll angle, theory inclination angle is driver's cabin in not homonymy
Relative to the angle of heel of vehicle frame under degree of inclining, therefore, the theoretical side tilt angle determined by this method accurately and reliably, Neng Gouyong
Good inclination is carried out in the driver's cabin to different type vehicle to check.
Further, in order to determine the maximum of the theoretical side tilt angle α, as shown in figure 3, B points can be moved to
B1 points, it is, the center of circle is set to the first elastic component 1 of the driver's cabin side and the described of the second elastic component 2 is hinged
Minimum point B1s of the point B in its described moving region, so that the first elastic component 1 of the minimum point and the driver's cabin opposite side
And second elastic component 2 the pin joint b movement locus peak b1 between line and the horizontal plane between folder
The angular theoretical maximum side tilt angle as the driver's cabin.So, because the theoretical maximum side tilt angle have ignored driver's cabin
The influence of front-suspension system, therefore, the pin joint B are in minimum point B1, the pin joint b and are in the highest of its movement locus
During point b1 states, the first elastic component 1 and the second elastic component 2 are in extreme position when driver's cabin is rolled, and in the reality of driver's cabin
Border is in use, being put the QS of system due to cabin front suspension and driver's cabin is rolled has certain inhibitory action, therefore,
The theoretical maximum side tilt angle is the most badness that driver's cabin is rolled, and driver's cabin is entered according to the theoretical maximum side tilt angle
Row rolls check and correction, it can be ensured that it is dry that the inclination of driver's cabin in a particular state can't cause the part between vehicle part to occur
Relate to.
Preferably, in theoretical side tilt angle measuring method of the invention, the first elastic component 1 is configured to helical spring, second
Elastic component 2 is configured to shock absorber.
Further, the suspension system 4 is configured to the rear-suspending system of the driver's cabin.
In the theoretical side tilt angle measuring method described in the present invention, it is preferable that pin joint B and b moving region can
So to determine, it is, in the step one, being determined as follows first elastic component of described driver's cabin the same side
1 and second elastic component 2 pin joint (B and b points) the moving region：
As shown in Figures 2 and 3, pin joint C or the c point using the lower end of the first elastic component 1 is the center of circle, with the first elastic component 1 most
Big tensile elongation and minimum compressed length are that radius draws circular arc respectively, to form being hinged for the first elastic component 1 and the second elastic component 2
First range of movement of point (namely B and b)；
Pin joint A or a using the second elastic component 2 and rear overhang bearing diagonal 3 is stretched out as the center of circle with the maximum of the second elastic component 2
Length and the minimum length that withdraws are that radius draws circular arc respectively, with formed the first elastic component 1 and the second elastic component 2 pin joint (
It is exactly B and the second range of movement b)；
So, the coincidence part of first range of movement and second range of movement is the first elastic component 1 and second
The moving region of the pin joint of elastic component 2, that is to say the dash area shown in Fig. 3.
So, the fortune of the pin joint (namely B and b) of the first elastic component 1 and the second elastic component 2 can reasonably be determined
Dynamic region.
In addition, the present invention also provides a kind of inclination check method of vehicle cab, the inclination check method includes：
Set up driver's cabin three-dimensional mathematical model；
The home position determined using theoretical side tilt angle measuring method in accordance with the above and the theoretical side
Degree of tilt carries out inclination action to the driver's cabin three-dimensional mathematical model and checked.
So, driver's cabin three-dimensional mathematical model roll by the home position and the theoretical side tilt angle and moved
Check, can accurately and reliably determine the various parameters that driver's cabin is rolled, accurately and reliably be counted so as to be provided for actual production
Supported according to analysis, the driver's cabin of vehicle is met specific inclination demand.
The preferred embodiment of the present invention is described in detail above in association with accompanying drawing, still, the present invention is not limited to above-mentioned reality
The detail in mode is applied, in the range of the technology design of the present invention, a variety of letters can be carried out to technical scheme
Monotropic type, these simple variants belong to protection scope of the present invention.
It is further to note that each particular technique feature described in above-mentioned embodiment, in not lance
In the case of shield, it can be combined by any suitable means.In order to avoid unnecessary repetition, the present invention to it is various can
The combination of energy no longer separately illustrates.
In addition, various embodiments of the present invention can be combined randomly, as long as it is without prejudice to originally
The thought of invention, it should equally be considered as content disclosed in this invention.
Claims (6)
1. a kind of theoretical side tilt angle measuring method of vehicle cab, it is characterised in that the arranged on left and right sides of the driver's cabin point
Suspension system (4) is not symmetrically provided with, and the suspension system includes the first elastic component (1), the second elastic component (2) and lower end
Fixed to the rear overhang bearing diagonal (3) on vehicle frame, the lower end of first elastic component (1) is hinged on vehicle frame, second elasticity
The two ends of part (2) are respectively correspondingly hinged on the top of first elastic component (1) and rear overhang bearing diagonal (3), so that three hinges
The line formation triangular structure of contact, the measuring method includes：
Step one, according to first elastic component (1) of described driver's cabin the same side and the motion rail of second elastic component (2)
Mark, determine respectively the driver's cabin both sides first elastic component (1) and second elastic component (2) pin joint each
Moving region；
Step 2, with first elastic component (1) of the driver's cabin side and the pin joint of second elastic component (2)
Moving region in any point be the center of circle, with described in the driver's cabin side when the driver's cabin is horizontal
First elasticity of the pin joint of first elastic component (1) and second elastic component (2) and the driver's cabin opposite side
The distance between described pin joint of part (1) and second elastic component (2) is that radius draws circular arc, the circular arc and the driver's cabin
The coincidence line of the moving region of first elastic component (1) of opposite side and the pin joint of second elastic component (2) is made
The motion rail of the pin joint of first elastic component (1) and second elastic component (2) for the driver's cabin opposite side
Mark；
Angle between the line and horizontal plane of step 3, the center of circle and the arbitrfary point on the movement locus is the driving
The theoretical side tilt angle of room.
2. theoretical side tilt angle measuring method according to claim 1, it is characterised in that the center of circle is set to described drive
First elastic component (1) of room side and the pin joint of second elastic component (2) are sailed in its described moving region
Minimum point so that the minimum point and first elastic component (1) of the driver's cabin opposite side and second elastic component
(2) angle between line and the horizontal plane between the peak of the movement locus of the pin joint is formed as described and driven
Sail the theoretical maximum side tilt angle of room.
3. theoretical side tilt angle measuring method according to claim 1, it is characterised in that first elastic component (1) is matched somebody with somebody
Helical spring is set to, second elastic component (2) is configured to shock absorber.
4. theoretical side tilt angle measuring method according to claim 1, it is characterised in that the suspension system is driven to be described
Sail the rear-suspending system of room.
5. theoretical side tilt angle measuring method according to any one of claim 1 to 4, it is characterised in that in the step
In rapid one, first elastic component (1) and second elastic component (2) of described driver's cabin the same side are determined as follows
Pin joint the moving region：
Pin joint using the first elastic component (1) lower end as the center of circle, with the maximum tension length of first elastic component (1) and
Minimum compressed length is that radius draws circular arc respectively, to form being hinged for first elastic component (1) and the second elastic component (2)
First range of movement of point；
Pin joint using second elastic component (2) and the rear overhang bearing diagonal (3) is the center of circle, with second elastic component (2)
Maximum extension elongation and the minimum length that withdraws be that radius draws circular arc respectively, to form first elastic component (1) and described the
Second range of movement of the pin joint of two elastic components (2)；
The coincidence part of first range of movement and second range of movement is first elastic component (1) and described second
The moving region of the pin joint of elastic component (2).
6. the inclination check method of a kind of vehicle cab, it is characterised in that the inclination check method includes：
Set up driver's cabin three-dimensional mathematical model；
The home position determined using the theoretical side tilt angle measuring method according to any one in claim 1-5
Inclination action is carried out to the driver's cabin three-dimensional mathematical model with the theoretical side tilt angle to check.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201410707379.XA CN104848831B (en) | 2014-11-28 | 2014-11-28 | The theoretical side tilt angle measuring method and inclination check method of vehicle cab |
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| CN201410707379.XA CN104848831B (en) | 2014-11-28 | 2014-11-28 | The theoretical side tilt angle measuring method and inclination check method of vehicle cab |
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| CN104848831A CN104848831A (en) | 2015-08-19 |
| CN104848831B true CN104848831B (en) | 2017-09-15 |
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| CN201410707379.XA Active CN104848831B (en) | 2014-11-28 | 2014-11-28 | The theoretical side tilt angle measuring method and inclination check method of vehicle cab |
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Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN111024015B (en) * | 2019-12-17 | 2021-05-11 | 东风商用车有限公司 | Method and system for measuring space displacement for automobile |
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| DE102006003622A1 (en) * | 2006-01-26 | 2007-08-02 | Daimlerchrysler Ag | Measuring device for measuring the spring movement of a wheel of a vehicle comprises an angle measuring sensor arranged on part of a wheel suspension whilst one element of an operating unit is fixed to another part of the suspension |
| CN102358359A (en) * | 2011-09-21 | 2012-02-22 | 东风汽车有限公司 | Strong damping type rear suspension device for automobile cab |
| CN103661599A (en) * | 2013-12-04 | 2014-03-26 | 奇瑞汽车股份有限公司 | System and method for predicting turning path of vehicle |
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| JP2001174289A (en) * | 1999-12-17 | 2001-06-29 | Alps Electric Co Ltd | Detector for angular rotation |
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| DE102006003622A1 (en) * | 2006-01-26 | 2007-08-02 | Daimlerchrysler Ag | Measuring device for measuring the spring movement of a wheel of a vehicle comprises an angle measuring sensor arranged on part of a wheel suspension whilst one element of an operating unit is fixed to another part of the suspension |
| CN102358359A (en) * | 2011-09-21 | 2012-02-22 | 东风汽车有限公司 | Strong damping type rear suspension device for automobile cab |
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