CN105928657A - Vehicle centroid position measuring device and method - Google Patents
Vehicle centroid position measuring device and method Download PDFInfo
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- CN105928657A CN105928657A CN201610364281.8A CN201610364281A CN105928657A CN 105928657 A CN105928657 A CN 105928657A CN 201610364281 A CN201610364281 A CN 201610364281A CN 105928657 A CN105928657 A CN 105928657A
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M1/00—Testing static or dynamic balance of machines or structures
- G01M1/12—Static balancing; Determining position of centre of gravity
- G01M1/122—Determining position of centre of gravity
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Abstract
The invention relates to a vehicle centroid position measuring device and a vehicle centroid position measuring method. The vehicle centroid position measuring device includes measurement modules and height brackets; the height brackets are arranged below one group of parallel measurement modules; the other group of measurement modules are arranged on the ground or a horizontal table; the measurement modules are used for measuring the weight of the front wheel and rear wheels of a braked vehicle; based brackets in the measurement modules are adjusted, so that the four wheels of the vehicle can be in the same plane; and the height brackets are used for supporting the wheels by a certain height. With the vehicle centroid position measuring device and method of the invention adopted, complex mechanical structures are not required, and other measurement modules are not required to be adopted additionally, and vehicles with different wheel treads and wheelbases can be measured.
Description
Technical field
The invention belongs to technical field of automobile measurement, a kind of vehicle centroid position measurement
Device and method.
Background technology
Vehicle centroid position is to affect vehicle safety and handling important performance indexes, and one
Straight is all production vehicles exploitation and one of important measurement parameter in experimentation, presently used
The method equipment needed thereby that measurement barycenter is conventional is the most complex, high cost, operating process complexity
And vehicle is had certain limitation.
Summary of the invention
In order to solve current vehicle centroid measuring method complexity, high cost, and for different cars
The limitation of barycenter measured by type, the invention provides a kind of vehicle centroid position-measurement device and side
Method, it is possible to measure different wheelspan and the vehicle of different wheelbase.
On the one hand, the invention provides a kind of vehicle centroid position-measurement device, including measuring mould
Block and height bracket, height bracket is respectively placed in below one of which horizontal survey module, another
Group measurement module arranges on the ground or on horizontal stand, described measurement module is used for measuring vehicle
Taking turns weight before and after after braking, the base support adjusted in measurement module makes automobile four-wheel at one
In plane；Height bracket is for propping up certain altitude by wheel.
Further, described measurement module, particularly as follows:
Sensor, after being used for measuring car braking before and after take turns weight；
Mounting bracket, including base support and transition bracket, base support is provided with sensor,
Transition bracket is arranged on base support both sides.
Further, described measurement module, also include display device, this display device defeated
Enter end to be connected with sensor port, be used for showing measurement result.
On the other hand, present invention also offers vehicle centroid location measurement method, including:
The first step: first measurement module is placed in level according to wheelspan and the wheelbase of tested vehicle
On face, when tested vehicle the most at the uniform velocity drives on measurement module, step on rapidly braking
Pedal brake；
Second step: by being separately mounted to sensor acquisition within measurement module front-wheel now
Load data and rear wheel load data, try to achieve car load center of gravity X and Y value；
3rd step: by jack, crane or other hoisting mechanisms by one group of horizontal survey
Module is raised, and measures the stressing conditions of now automobile four-wheel, measures car load center of gravity Z value.
Concrete, measurement module position in the horizontal plane according to the different wheelspan of tested vehicle and
Wheelbase is adjusted.
Concrete, car load center of gravity X and Y value, car load center of gravity Z value are according to force system in equilibrium equation and power
Square equilibrium equation is tried to achieve.
Concrete, car load center of gravity X and Y value take level measurement, according to ∑ MX=0, ∑ MY=0
Can obtain:
X=[(FA+FC)-(FB+FD)]×AB/(2G)
Y=[(FA+FB)-(FC+FD)]×AC/(2G)
Wherein wheelbase be AB, wheelspan be AC, complete vehicle quality be G, can to measure numerical value be FA、FB、
FC、FD。
More specifically, oblique photogrammetry is taked during test car load center of gravity Z value, it is desirable to vehicle is in
In plane, whole Plane Rotation will be around a horizontal sides axle, and the car load inclined height of lifting is
Δ h, and then obtain car load center of gravity Z value.
As more specifically, vehicle's center of gravity height equation is:
Wherein, Δ h is by one group of parallel survey by jack, crane or other hoisting mechanisms
Amount module raises height, car load wheelbase x, x1Represent center-of-mass coordinate P of car load wheelbase x and measurement
Difference, complete vehicle quality G, can measure numerical value is FA、FB、FC、FD。
Due to the fact that the above technical method of employing, it is possible to obtain following technique effect: this
Bright according to centroid position during car braking and front and back wheel load change relation, to braking rear vehicle
Front-wheel and weight shown by trailing wheel, be firmly equilibrium equation and torque equilibrium equation principle can be asked
Obtain car load center of gravity X and Y value, take oblique photogrammetry during test car load center of gravity Z value, be different from
Existing vehicle centroid is measured, and the present invention need not the mechanical mechanism of complexity, is also not required to add other
Measurement module, it is possible to measure different wheelspan and the vehicle of different wheelbases.
Accompanying drawing explanation
For clearer explanation embodiments of the invention or the technical scheme of prior art, below
Introduce the accompanying drawing used required in embodiment or description of the prior art is done one simply, aobvious
And easy insight, the accompanying drawing in describing below is only some embodiments of the present invention, for ability
From the point of view of the those of ordinary skill of territory, on the premise of not paying creative work, it is also possible to according to this
A little accompanying drawings obtain other accompanying drawing.
Fig. 1 is the application vehicle centroid position-measurement device schematic diagram；
Fig. 2 is the application fulcrum dynamometry schematic diagram in the horizontal plane；
Fig. 3 is the application tested vehicle schematic diagram in the horizontal plane；
Fig. 4 is the schematic diagram that the application tested vehicle front-wheel is raised；
Fig. 5 is the application center of gravity Z pH-value determination pH schematic diagram on height bracket；
Fig. 6 is the application measurement module schematic diagram.
1, measurement module, 2, height bracket, 3, display device, 4, excessive support, 5,
Base support, 6, sensor, 7, horizontal plane, 8, tested vehicle.
Detailed description of the invention
For making the purpose of embodiments of the invention, technical scheme and advantage clearer, knot below
Close the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is carried out the completeest
Whole description:
Embodiment 1
As it is shown in figure 1, present embodiments provide a kind of vehicle centroid position-measurement device, bag
Including measurement module and height bracket, height bracket is respectively placed under one of which horizontal survey module
Side, this group horizontal survey module refers to two measurement modules being elevated below front vehicle wheel；Another
Group measurement module is arranged in the horizontal plane, as on ground or on horizontal stand, and this group measurement module
It is two measurement modules below rear wheel；Described measurement module is after measuring car braking
Front and back wheel weight, the base support adjusted in measurement module makes automobile four-wheel in one plane；
Height bracket for propping up certain altitude Δ h by front vehicle wheel.The weight shown according to display device
Numerical value and the front-wheel height number on height bracket is firmly equilibrium equation and equalising torque side
Cheng Yuanli, uses four fulcrum ergographies to calculate vehicle centroid position.
Described measurement module, particularly as follows:
Sensor, after being used for measuring car braking before and after take turns weight；
Mounting bracket, including base support and transition bracket, base support is provided with sensor,
Transition bracket is arranged on base support both sides, facilitates advance and the retrogressing of vehicle.
Display device, the input of this display device is connected with sensor port, is used for showing survey
Amount result.
Embodiment 2
Present embodiments provide a kind of vehicle centroid location measurement method, including:
The first step: also differ according to different automobile types, wheelspan and wheelbase, it is known that the wheelspan of car load,
Wheelbase and complete vehicle weight, according to wheelspan and the wheelbase of tested vehicle, first by 4 measurement modules
1 puts in the horizontal plane according to wheelspan and the wheelbase of tested vehicle, makes tested vehicle at horizontal plane
On at the uniform velocity travel, slowly sail on 4 base supports 5 via excessive support 4, such as Fig. 2 institute
Show, when tested vehicle front wheels and rear wheels all sails on base support 5, step on rapidly braking
Pedal brake；
Second step: measure now vapour by the sensor 6 being separately mounted within measurement module 1
The stressing conditions of car four-wheel, and gather front-wheel weight data now and rear wheel load data, as
Level measurement is taked when test car load center of gravity X and Y value shown in Fig. 3；
3rd step: by jack, crane or other hoisting mechanisms by one group of horizontal survey
Module i.e. Herba Plantaginis wheel is raised, and measures the stressing conditions of now automobile four-wheel, according to force system in equilibrium side
Journey and torque equilibrium equation principle can measure car load center of gravity Z value.
Concrete, measurement module position in the horizontal plane according to the different wheelspan of tested vehicle and
Wheelbase is adjusted.
Embodiment 3
Supplementing further as embodiment 2, car load center of gravity X and Y value take level measurement,
First the value of AC in the value of AB in X-axis and Y-axis is measured, due to AB=CD, AC=BD, Gu
Four force-detecting position one rectangles of formation and ABCD are in same level, according to
∑MX=0；∑MY=0 can draw,
X=[(FA+FC)-(FB+FD)] × AB/ (2G),
Y=[(FA+FB)-(FC+FD)] × AC/ (2G),
Wherein wheelbase be AB, wheelspan be AC, complete vehicle quality be G, can to measure numerical value be FA、FB、
FC、FD；Wherein FA、FCWeight, F is taken turns for Herba PlantaginisB、FDFor back wheels of vehicle weight.
After car load center of gravity X and Y value are measured, take during test car load center of gravity Z value to tilt to survey
Mensuration, it is desirable to vehicle is in plane, whole Plane Rotation to carry around a horizontal sides axle
The car load inclined height risen is, and then obtains car load center of gravity Z value, particularly as follows:
By jack, crane or other hoisting mechanisms, lower for Herba Plantaginis wheel measurement module 1 is lifted
High Δ h, as shown in Figure 4, tested vehicle front-wheel is seated on height bracket 2, and trailing wheel is still
On measurement module 1 on horizontal plane 7, by being separately mounted to the biography within measurement module 1
Sensor 6, measures the stressing conditions of now automobile four-wheel, and tested vehicle front-wheel exists as shown in Figure 5
Raise Δ h on measurement module 1, according to vehicle's center of gravity height equation be
Known numeric value is: Δ h for by jack, crane or other hoisting mechanisms by one group
Horizontal survey module raises height, car load wheelbase x, x1Represent the barycenter of car load wheelbase x and measurement
The difference of coordinate P, i.e. x1=xCar load wheelbase-PCenter-of-mass coordinate value, x=x1+x2, complete vehicle quality G, can measure number
Value is FA、FB、FC、FD.Car load center of gravity Z value can be measured according to above-mentioned known quantity.
The above, the only present invention preferably detailed description of the invention, but the protection model of the present invention
Enclosing and be not limited thereto, any those familiar with the art is in the skill of present disclosure
In the range of art, according to technical scheme and inventive concept equivalent in addition thereof or change
Become, all should contain within protection scope of the present invention.
Claims (10)
1. vehicle centroid position-measurement device, it is characterised in that include measurement module and height bracket,
Height bracket is respectively placed in below one of which horizontal survey module, and another group measurement module is arranged
In the horizontal plane, weight, adjustment are taken turns before and after after described measurement module is used for measuring car braking
Base support in measurement module makes automobile four-wheel in one plane；Height bracket is for by car
Wheel props up certain altitude.
Vehicle centroid position-measurement device the most according to claim 1, it is characterised in that institute
Stating horizontal plane is on ground or horizontal stand.
Vehicle centroid position-measurement device the most according to claim 1, it is characterised in that institute
State measurement module, particularly as follows:
Sensor, after being used for measuring car braking before and after take turns weight；
Mounting bracket, including base support and transition bracket, base support is provided with sensor,
Transition bracket is arranged on base support both sides.
Vehicle centroid position-measurement device the most according to claim 3, it is characterised in that institute
State measurement module, also include display device, the input of this display device and sensor port phase
Even, it is used for showing measurement result.
5. vehicle centroid location measurement method, it is characterised in that including:
The first step: first measurement module is placed in level according to wheelspan and the wheelbase of tested vehicle
On face, when tested vehicle the most at the uniform velocity drives on measurement module, step on rapidly braking
Pedal brake；
Second step: by being separately mounted to sensor acquisition within measurement module front-wheel now
Load data and rear wheel load data, try to achieve car load center of gravity X and Y value；
3rd step: by jack, crane or other hoisting mechanisms by one group of horizontal survey
Module is raised, and measures the stressing conditions of now automobile four-wheel, measures car load center of gravity Z value.
Vehicle centroid location measurement method the most according to claim 5, it is characterised in that survey
Amount module position in the horizontal plane is adjusted according to the different wheelspan of tested vehicle and wheelbase.
Vehicle centroid location measurement method the most according to claim 5, it is characterised in that car load
Center of gravity X and Y value, car load center of gravity Z value are to try to achieve according to force system in equilibrium equation and torque equilibrium equation.
Vehicle centroid location measurement method the most according to claim 7, it is characterised in that car load
Center of gravity X and Y value take level measurement, according to ∑ MX=0, ∑ MY=0 can obtain:
X=[(FA+FC)-(FB+FD)]×AB/(2G)
Y=[(FA+FB)-(FC+FD)]×AC/(2G)
Wherein wheelbase be AB, wheelspan be AC, complete vehicle quality be G, can to measure numerical value be FA、FB、
FC、FD。
Vehicle centroid location measurement method the most according to claim 7, it is characterised in that survey
Oblique photogrammetry is taked, it is desirable to vehicle is in plane, whole plane during examination car load center of gravity Z value
Rotation will be around a horizontal sides axle, and the car load inclined height of lifting is Δ h, and then obtains whole
Car weight heart Z value.
Vehicle centroid location measurement method the most according to claim 9, it is characterised in that car
Height of C.G. equation is:
Wherein, Δ h is by one group of parallel survey by jack, crane or other hoisting mechanisms
Amount module raises height, car load wheelbase x, x1Represent the center-of-mass coordinate of car load wheelbase x and measurement
The difference of P, complete vehicle quality G, can measure numerical value is FA、FB、FC、FD。
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| CN106406307A (en) * | 2016-09-20 | 2017-02-15 | 杭州南江机器人股份有限公司 | Movable platform movement control method based on load center of gravity |
| CN106768636A (en) * | 2016-12-22 | 2017-05-31 | 北奔重型汽车集团有限公司 | One kind can tumble driver's cabin center of gravity measuring method |
| CN106840519A (en) * | 2017-01-19 | 2017-06-13 | 河南理工大学 | A kind of static measurement method of two-axle car height of center of mass |
| CN107091713A (en) * | 2017-04-28 | 2017-08-25 | 中国航空工业集团公司北京长城计量测试技术研究所 | Can Moving master body and center mass measuring device calibration method |
| CN107271107A (en) * | 2017-07-04 | 2017-10-20 | 常州工学院 | A kind of method of testing of the large-scale mine rig center of gravity of three fulcrums oil cylinder support |
| CN107300446A (en) * | 2017-07-04 | 2017-10-27 | 常州工学院 | A kind of method of testing of the large-scale mine rig center of gravity of four fulcrums oil cylinder support |
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| CN108204898A (en) * | 2017-12-08 | 2018-06-26 | 宁波名泽汽车科技有限公司 | A kind of vehicle complete vehicle barycenter test device and the method tested using the device |
| CN108225668A (en) * | 2018-01-08 | 2018-06-29 | 北京斯柯特科技有限公司 | Centroid position measuring device and measuring method based on lean forward platform and wheel load instrument |
| CN108303212A (en) * | 2018-03-16 | 2018-07-20 | 哈尔滨理工大学 | Vehicle mass barycenter parameter detecting system demarcating module |
| CN108414143A (en) * | 2018-04-28 | 2018-08-17 | 江铃控股有限公司 | Vehicle's center of gravity measurement method |
| CN108801548A (en) * | 2018-06-29 | 2018-11-13 | 北京汽车股份有限公司 | Vehicle centroid survey tool and measurement method |
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| CN107782500A (en) * | 2016-08-25 | 2018-03-09 | 大连楼兰科技股份有限公司 | Automobile center mass measuring device and measuring method |
| CN106406307A (en) * | 2016-09-20 | 2017-02-15 | 杭州南江机器人股份有限公司 | Movable platform movement control method based on load center of gravity |
| CN106768636A (en) * | 2016-12-22 | 2017-05-31 | 北奔重型汽车集团有限公司 | One kind can tumble driver's cabin center of gravity measuring method |
| CN106840519A (en) * | 2017-01-19 | 2017-06-13 | 河南理工大学 | A kind of static measurement method of two-axle car height of center of mass |
| CN107091713A (en) * | 2017-04-28 | 2017-08-25 | 中国航空工业集团公司北京长城计量测试技术研究所 | Can Moving master body and center mass measuring device calibration method |
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| CN107300446A (en) * | 2017-07-04 | 2017-10-27 | 常州工学院 | A kind of method of testing of the large-scale mine rig center of gravity of four fulcrums oil cylinder support |
| CN107271107A (en) * | 2017-07-04 | 2017-10-20 | 常州工学院 | A kind of method of testing of the large-scale mine rig center of gravity of three fulcrums oil cylinder support |
| CN108204898A (en) * | 2017-12-08 | 2018-06-26 | 宁波名泽汽车科技有限公司 | A kind of vehicle complete vehicle barycenter test device and the method tested using the device |
| CN108225668A (en) * | 2018-01-08 | 2018-06-29 | 北京斯柯特科技有限公司 | Centroid position measuring device and measuring method based on lean forward platform and wheel load instrument |
| CN108303212A (en) * | 2018-03-16 | 2018-07-20 | 哈尔滨理工大学 | Vehicle mass barycenter parameter detecting system demarcating module |
| CN108414143A (en) * | 2018-04-28 | 2018-08-17 | 江铃控股有限公司 | Vehicle's center of gravity measurement method |
| CN108801548A (en) * | 2018-06-29 | 2018-11-13 | 北京汽车股份有限公司 | Vehicle centroid survey tool and measurement method |
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| CN108827535B (en) * | 2018-09-26 | 2021-01-01 | 长春理工大学 | Center of mass test bench |
| CN110060484A (en) * | 2019-05-16 | 2019-07-26 | 武汉理工大学 | A kind of real-time early warning system and method violating the regulations of the highway passenger transportation based on block chain |
| CN111645688A (en) * | 2019-09-19 | 2020-09-11 | 摩登汽车有限公司 | Method and device for calculating vehicle weight and gravity center in real time, electronic equipment and vehicle |
| CN111645688B (en) * | 2019-09-19 | 2022-05-17 | 摩登汽车有限公司 | Method and device for calculating vehicle weight and gravity center in real time, electronic equipment and vehicle |
| CN110595688A (en) * | 2019-10-18 | 2019-12-20 | 江麓机电集团有限公司 | Vehicle three-dimensional centroid detection method |
| CN110595688B (en) * | 2019-10-18 | 2021-06-25 | 江麓机电集团有限公司 | Vehicle three-dimensional centroid detection method |
| CN111638004A (en) * | 2020-06-10 | 2020-09-08 | 东风汽车股份有限公司 | Vehicle mass center position measuring tool and measuring method thereof |
| CN111638004B (en) * | 2020-06-10 | 2022-06-03 | 东风汽车股份有限公司 | Vehicle mass center position measuring tool and measuring method thereof |
| CN111766015A (en) * | 2020-06-30 | 2020-10-13 | 三一汽车制造有限公司 | Vehicle gravity center height measuring device and method |
| CN111855080A (en) * | 2020-07-28 | 2020-10-30 | 北京三快在线科技有限公司 | Centroid position measuring device for vehicle |
| CN114235279A (en) * | 2021-11-30 | 2022-03-25 | 北京航天新立科技有限公司 | Method for measuring three-dimensional mass center of super-long large vehicle |
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