CN105928657A - Vehicle centroid position measuring device and method - Google Patents

Vehicle centroid position measuring device and method Download PDF

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Publication number
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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China
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measurement
vehicle
value
module
car load
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CN201610364281.8A
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CN105928657B (en
Inventor
田雨农
金谣
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Dalian Roiland Technology Co Ltd
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Dalian Roiland Technology Co Ltd
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    • GPHYSICS
    • G01MEASURING; TESTING
    • G01MTESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
    • G01M1/00Testing static or dynamic balance of machines or structures
    • G01M1/12Static balancing; Determining position of centre of gravity
    • G01M1/122Determining position of centre of gravity

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

Vehicle centroid position-measurement device and method
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:
Z = x 2 - Δh 2 · [ x 1 - ( F B + F D ) · x / G ] / Δ h
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
Z = x 2 - Δh 2 · [ x 1 - ( F B + F D ) · x / G ] / Δ h
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:
Z = x 2 - Δh 2 · [ x 1 - ( F B + F D ) · x / G ] / Δ h
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
CN201610364281.8A 2016-05-27 2016-05-27 Vehicle centroid position-measurement device and method Active CN105928657B (en)

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Cited By (15)

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Publication number Priority date Publication date Assignee Title
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
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
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
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
CN108827535A (en) * 2018-09-26 2018-11-16 长春理工大学 A kind of mass center testing stand
CN110595688A (en) * 2019-10-18 2019-12-20 江麓机电集团有限公司 Vehicle three-dimensional centroid detection method
CN110873624A (en) * 2018-09-03 2020-03-10 中车大同电力机车有限公司 Locomotive top cover gravity center detection system and method
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

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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
CN107091713B (en) * 2017-04-28 2019-09-10 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
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
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
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
CN110873624A (en) * 2018-09-03 2020-03-10 中车大同电力机车有限公司 Locomotive top cover gravity center detection system and method
CN108827535A (en) * 2018-09-26 2018-11-16 长春理工大学 A kind of mass center testing stand
CN108827535B (en) * 2018-09-26 2021-01-01 长春理工大学 Center of mass test bench
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
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

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