CN104122022B - Vehicle axles dynamic load measuring instrument and assessment method - Google Patents
Vehicle axles dynamic load measuring instrument and assessment method Download PDFInfo
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- CN104122022B CN104122022B CN201410313740.0A CN201410313740A CN104122022B CN 104122022 B CN104122022 B CN 104122022B CN 201410313740 A CN201410313740 A CN 201410313740A CN 104122022 B CN104122022 B CN 104122022B
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Abstract
Vehicle axles dynamic load measuring instrument of the present invention, comprise and multiplely add long bolt and rotation platform, be characterised in that: also comprise mounting platform, scrambler and fixed bar, mounting platform is fixed on bearing rod rotationally by bearing; Scrambler is fixed on mounting platform, and the input shaft of scrambler is fixedly connected with bearing rod through shaft coupling, and rotation platform is provided with acceleration transducer.Assessment method of the present invention comprises a). take static shaft weight; B). loading vehicles instrument; C). vehicle travels; D). data acquisition; E). calculate dynamic load coefficient and standard deviation thereof; F). calculate dead load reduction coefficient; G). dynamic load is converted into dead load.Vehicle axles dynamic loading measuring instrument of the present invention and method, propose scientific theory and computing method that dead load is converted to dynamic load, for pavement construction proposes more realistic theoretical direction, for the damaging influence utilizing dynamic load to study vehicle road pavement has established theoretical foundation.
Description
Technical field
The present invention relates to a kind of vehicle axles dynamic load measuring instrument and assessment method, in particular, particularly relate to vehicle axles dynamic load measuring instrument and assessment method that a kind of speed by vehicle and vertical acceleration carry out analyzing.
Background technology
In China's bituminous pavement design theory, vehicular load is considered as dead load or Approximate Equivalent dead load.Through development for many years, dead load pattern Pavement Design theory is more perfect, uses comparatively wide, by project planner is accepted.This hypothesis is lower in the speed of a motor vehicle, vehicle-mounted less time, dead load pattern Pavement Structure Design is fine.But from the trend of highway in China transport development, the highway communication of China has now entered the heavy traffic stage, and running velocity is more and more faster.Travelling from function path vehicle with certain speed is certain event, and stationary vehicle is then incident.Vehicle in reality is all heavily loaded hot-short, and what it put on road surface is dynamic loads, is the dynamic load of a kind of amplitude size and action space all random variation.Due to the existence of dynamic loads, make differing greatly between the actual force of road pavement in static load pattern and vehicle travel process, the dynamics of pavement structure is also far from static characteristic and can describes, these defects and difference, cannot fundamentally solve for existing design courses, and there is the unaccountable breakoff phenomenon of many static theories in road surface, as loose in fatigue crack, material etc.The moving loads that the damage and fracture of pavement structure and heavy vehicle produce is closely related, illustrate the failure mechanism that bituminous pavement dynamic effect produces, the design of pavement structure, construction, maintenance and reconstruction work will be promoted, for the development of road subject is laid a solid foundation.
Obtain the current mainly weighing system of method of vehicular load, have static weighing and dynamic weighing system at present.When static weighing requires to weigh at every turn, vehicle must stop, thus must suspend traffic, and can not adapt to the weighing of jumbo traffic loading; Dynamic Weighing Technology (Weigh-In-MotionWIM) provides a kind of technological means automatically recording when uninterrupted traffic and process the data such as vehicle weight, vehicle classification, the speed of a motor vehicle.Highway Weigh-in-Motion Systems is a set of sensor and supports instrument, can be used to measure the appearance of a locality special time driving vehicle and Dynamic tire stressed.Dynamic weighing measure time except actual axial recast is for measuring except sensor-based system, also has the perturbed force that many factors produce, as Vehicular vibration, tire characteristics, environmental factor etc. that the speed of a motor vehicle, vehicle itself vibrates, road surface cause, during measurement, actual axial is heavy is often submerged in various perturbed force, and this will seriously affect the precision of dynamic weighing.The effect of dynamic weighing system is for the vehicle composition of driving vehicle on Current Highway, axle load spectrum and overweight degree are understood by highway communication department, analyze the influence degree that overweight vehicle road pavement is damaged, and formulate corresponding control measures and laws and regulations on the management, simultaneously also for highway operation department provides effective technological means by car weight charge.Weighing system can only one-point measurement, cannot detect the dynamic loads that vehicle is applied to road surface in real time.Vehicle dynamic load is both relevant with the load-carrying of vehicle, relevant with car speed, surface evenness and vehicle suspension parameters again, the weighing system of fixed point cannot realize the Real-Time Monitoring of the dynamic load of vehicle, so cannot reflect the relation between the temporal signatures of vehicle dynamic load and dynamic load characteristic sum surface evenness.
Summary of the invention
The present invention, in order to overcome the shortcoming of above-mentioned technical matters, provides vehicle axles dynamic load measuring instrument and assessment method that a kind of speed by vehicle and vertical acceleration carry out analyzing.
Vehicle axles dynamic load measuring instrument of the present invention, comprises be fixed on vehicle hub multiple and adds long bolt and be fixed on the rotation platform added on long bolt, and the surrounding of rotation platform offers and the bolt hole adding long bolt and match; Its special feature is: also comprise mounting platform, scrambler and fixed bar, and the center position of described rotation platform offers the bolt hole matched with bearing rod, and mounting platform is fixed on bearing rod rotationally by bearing; Scrambler is fixed on mounting platform, and the input shaft of scrambler is fixedly connected with bearing rod through shaft coupling, and fixed bar and rotation platform fix, and during measurement, the upper end of fixed bar and the nonrotational position of car body fix; Rotation platform is provided with the acceleration transducer for vertical direction acceleration in measuring vehicle driving process.
Adding long bolt is fixed on vehicle hub, and rotation platform is fixed on and adds on long bolt, and rotation platform can be rotated with the rotation of wheel.Bearing rod is fixed on by bearing for mounting platform, and mounting platform is provided with the fixed bar fixing with car body, what rotation platform was rotated with the traveling of vehicle crosses in car, mounting platform becomes stationary state relative to car body, to arrange acceleration transducer on mounting platform, the acceleration of vertical direction in vehicle travel process is measured.The input shaft of scrambler fixes through shaft coupling and bearing rod, and the input shaft of scrambler is rotated with the rotation of rotation platform, and then realizes the measurement to Vehicle Speed.
Vehicle axles dynamic load measuring instrument of the present invention, described mounting platform is U-lag shape, and the two sides of U-lag mounting platform all offer through hole, and the through hole of mounting platform side matches with bearing, and the through hole of opposite side matches with scrambler.
Vehicle axles dynamic load measuring instrument of the present invention, described in add long bolt middle part be provided with boss or one end is provided with lengthening cap.
Vehicle axles dynamic load measuring instrument of the present invention, described in add long bolt and fixed by the first nut and rotation platform, bearing rod is fixed by the second nut and rotation platform.
The assessment method of vehicle axles dynamic load measuring instrument of the present invention, be equivalent to principle with pavement destruction and vehicle dynamic load is scaled dead load, its special feature is, is realized: a) by following steps. take static shaft weight, select the vehicle of model experiment, weigh stationary vehicle axle weight
; B). loading vehicles instrument, the wheel hub of Vehicle Axles to be evaluated is installed vehicle axles dynamic load measuring instrument as described in claim 1, to measure the speed in vehicle travel process and acceleration; C). vehicle travels, and a certain section that chooses real road, as experiment section, allows vehicle to be evaluated travel on test section; D). data acquisition, in the process that vehicle travels, utilizes scrambler and acceleration transducer with the fixed cycle, the instantaneous velocity of continuous collection vehicle
with vertical motion acceleration
; Choose the speed of a motor vehicle
the distance that in size metastable a period of time, vehicle travels, as effectively testing section, has if effectively test in section
group instantaneous velocity
and acceleration
,
; Formula (1) is utilized to calculate the average velocity of effectively testing in section
:
（1）；
E). calculate dynamic load coefficient and standard deviation thereof, calculate vehicle dynamic load coefficient according to formula (2)
:
（2）
Wherein,
for acceleration of gravity;
Formula (3) is utilized to calculate the standard deviation of vehicle dynamic load coefficient:
（3）；
F). calculate dead load reduction coefficient, at average velocity
under condition, formula (4) calculating vehicle axles dynamic load is utilized to be scaled the conversion coefficient of dead load needed for bituminous pavement design
:
（4）
Wherein,
for dynamic load coefficient,
for dynamic load coefficient distribution probability, its size is according to following table value:
Table 1 dynamic load coefficient and distribution probability thereof
| i=1 | i=2 | i=3 | i=4 | i=5 | i=6 | i=7 | i=8 | |
| Dynamic load coefficient | 3 σ D | 2.9σ D | 2.7σ D | 2.5 σ D | 2.3σ D | 2.1σ D | 1.9σ D | 1.7σ D |
| Distribution probability % | 0.135 | 0.1205 | 0.2106 | 0.3537 | 0.5705 | 0.8847 | 1.318 | 1.8869 |
Continued 2 dynamic load coefficient and distribution probability thereof
| i=9 | i=10 | i=11 | i=12 | i=13 | i=14 | i=15 | i=16 | |
| Dynamic load coefficient | 3 σ D | 2.9σ D | 2.7σ D | 2.5 σ D | 2.3σ D | 2.1σ D | 1.9σ D | 1.7σ D |
| Distribution probability % | 0.135 | 0.1205 | 0.2106 | 0.3537 | 0.5705 | 0.8847 | 1.318 | 1.8869 |
G). dynamic load is converted into dead load, destroys equivalence principle according to prefabricate pile road pavement, at car speed be
condition under, dynamic load is converted into the dead load needed for Pavement Design according to formula (5):
（5）
Load numerical value after utilizing dynamic load to be converted into dead load is evaluated, for pavement construction proposes more realistic theoretical direction.
The assessment method of vehicle axles dynamic load measuring instrument of the present invention, steps d) described in speed to highway and Class I highway:
=60km/h, 80km/h, 100km/h, 120km/h; To two, three, Class IV highway:
=20km/h, 40km/h, 60km/h, 80km/h.
The invention has the beneficial effects as follows: vehicle axles dynamic loading measuring instrument of the present invention, rotation platform is fixed on vehicle hub by adding long bolt, bearing rod is fixed on the center position of rotation platform, scrambler is fixed by shaft coupling and bearing rod, utilizes scrambler to achieve measurement to car speed; Mounting platform is fixed on bearing rod by bearing, and mounting platform is provided with the fixed bar fixed with car body, mounting platform is not rotated with the rotation of rotation platform, is convenient to fixing acceleration transducer, vehicle is run in car the acceleration on vertical direction is measured.According to the weight of the speed of the vehicle recorded, the acceleration of vertical direction and vehicle, can analyze the wheel shaft dynamic load of vehicle, for pavement construction and maintenance provide reliable theoretical foundation.
The assessment method of vehicle axles dynamic load measuring instrument of the present invention, is equivalent to principle with pavement destruction and vehicle dynamic load is scaled dead load, first obtains the average velocity of typical vehicle in effective experiment section
, dynamic load coefficient and dynamic load coefficient standard deviation, calculate utilizing dynamic load coefficient and distribution probability thereof the conversion coefficient that dead load is converted to dynamic load
, calculate dead load finally by conversion coefficient, the load numerical value after utilizing dynamic load to be converted into dead load is evaluated.The assessment method of vehicle axles dynamic load measuring instrument of the present invention, propose scientific theory and computing method that dead load is converted to dynamic load, for pavement construction proposes more realistic theoretical direction, for the damaging influence utilizing dynamic load to study vehicle road pavement has established theoretical foundation.
Accompanying drawing explanation
Fig. 1 is the structural representation of vehicle axles dynamic load measuring instrument of the present invention and assessment method;
Fig. 2 is the explosive view of vehicle axles dynamic load measuring instrument of the present invention and assessment method;
Fig. 3 is the structural representation being applied to vehicle axles dynamic load measuring instrument on cargo vehicle and assessment method;
Fig. 4 is the structural representation of rotation platform in the present invention;
Fig. 5 is the structural representation of mounting platform in the present invention.
In figure: 1 adds long bolt, 2 bearing rods, 3 rotation platforms, 4 first nuts, 5 second nuts, 6 bearings, 7 mounting platforms, 8 shaft couplings, 9 fixed bars, 10 scramblers, 11 boss, 12 long nuts, 13 through holes.
Embodiment
Below in conjunction with accompanying drawing and embodiment, the invention will be further described.
As depicted in figs. 1 and 2, give structural representation and the explosive view of vehicle axles dynamic load measuring instrument of the present invention and assessment method, it comprises and adds long bolt 1, bearing rod 2, rotation platform 3, mounting platform 7, shaft coupling 8, fixed bar 9, scrambler 10; The shown quantity adding long bolt 1 was individual, the wheel hub of one end and vehicle of adding long bolt 1 fixes, and the other end and rotation platform 3 fix, as shown in Figure 4, give the structural representation of rotation platform, the surrounding of shown rotation platform 3 offers and the through hole 13 adding long bolt 1 and match.By the first nut 4 with add coordinating of long bolt 1, rotation platform 3 can be firmly fixed at and add on long bolt 1.The center position of rotation platform 3 offers the through hole matched with bearing rod 2, and bearing rod 2 is fixed on the center position of rotation platform 3 by the second nut 5, and like this in the process of rotation platform 3 rotation, bearing rod 2 can rotate with it.
Shown mounting platform 7 is U-lag shape, the biside plate of the mounting platform 7 of U-lag shape all offers logical 13, give the structural representation of mounting platform as shown in Figure 5, be provided with the bearing 6 matched with bearing rod 2 in the through hole of mounting platform 7 side, scrambler 10 is fixed on the through hole of the opposite side of mounting platform 7.The input shaft of scrambler 10 fixes through shaft coupling 8 and bearing rod 2 through after through hole, and like this, in the process that rotation platform 3 rotates with vehicle, bearing rod 2 can drive the input shaft of scrambler 10 to rotate together, realizes the measurement to Vehicle Speed.
Shown fixed bar 9 fixes with mounting platform 7, is that fixed bar 9 fixes with the nonrotational position of vehicle, to ensure that mounting platform 7 becomes stationary state relative to car body using.Shown mounting platform 7 one-tenth horizontality is arranged, mounting platform is fixed with the acceleration transducer due to vertical direction acceleration in measuring vehicle driving process, acceleration transducer can adopt 3-axis acceleration sensor, carry out the acceleration analysis on three directions, the acceleration value of a vertical direction of only picking up the car.On the basis obtaining the speed of vehicle, the acceleration of vertical direction, in conjunction with the weight of vehicle, can carry out computation and analysis to the wheel shaft dynamic loading of vehicle, and then the stress of road pavement is analyzed, for the construction on road surface, maintenance process simulation provide the reference frame of science.
The middle part adding long bolt 1 in Fig. 1 and Fig. 2 is provided with boss 11, to realize the position-limiting action to rotation platform 3, this kind of version add the measurement that long bolt 1 is applicable to car wheel shaft dynamic loading.In figure 3, shown one end adding long bolt 1 is fixed with long nut 12, this structure add long bolt 1 for matching with the wheel hub of truck, in order to realize measurement to truck wheel shaft dynamic loading.
Acceleration transducer can adopt 3-axis acceleration sensor, and as adopted model to be the sensor of GY-521, its function and feature are: power supply: the voltage stabilizing of 3-5v(internal low-voltage difference); Communication mode: standard I IC communication protocol; Built-in chip type 16bitAD converter, 16 bit data export; Power supply: 3-5v.Scrambler 10 can adopt model to be the incremental-rotating coder of 400P/R, is produced the counting pulse signal in identifiable design direction by the grating disc that rotates and optocoupler; Performance: 400 pulses often turn; Operating voltage: 5-24V, maximum machine rotating speed 1000 revs/min.
Vehicle axles dynamic load measuring instrument of the present invention and assessment method installation method are (to detect car):
(1) fastening screw in car hub is replaced with add long bolt 1, thus lengthen vehicle tyre fastening screw;
(2) rotation platform 3 is installed adding on long bolt 1, and carries out fastening with the first nut 4;
(3) bearing rod 2 is installed on rotation platform, and carries out fastening with the second nut 5;
(5) bearing 6 is arranged on the through hole of mounting platform 7 side;
(6) mounting platform 7 installing bearing 6 is arranged on bearing rod 2;
(7) scrambler 10 is installed in other one end of mounting platform 7, and with fastened by screw;
(8) be arranged on bearing rod 2 by one end of shaft coupling 8, one end is installed on the input shaft of scrambler 10 in addition, realizes the synchronous axial system of bearing rod 2 and scrambler 10, thus can measure faster rotating wheel;
(9) on mounting platform 7, acceleration transducer is installed, and with fastened by screw; In order to prevent the short circuit of sensor and mounting platform 7, need to smear one deck epoxy resin on mounting platform 7;
(10) fixed bar 9 is arranged on assembling platform 7, and fastening with nut;
(11) be connected on compartment by fixed bar 9, meeting fixed bar can slide up and down, but can not the requirement of translation, reaches acceleration transducer mounting platform Vertical Free Vibration but the object that can not rotate;
(12) degree of will speed up sensor is connected with the computing machine with computing function with scrambler 10 data line;
(13) degree of will speed up signal is converted into vibration acceleration, then is converted into axletree oscillatory load, and code device signal is converted to vehicle velocity signal, thus the real time correlation that can realize car speed and axletree dynamic load is measured.
The assessment method of vehicle axles dynamic load measuring instrument of the present invention, is equivalent to principle with pavement destruction and vehicle dynamic load is scaled dead load, realized by following steps:
A). take static shaft weight, select the vehicle of model experiment, weigh stationary vehicle axle weight
;
B). loading vehicles instrument, the wheel hub of Vehicle Axles to be evaluated is installed vehicle axles dynamic load measuring instrument as described in claim 1, to measure the speed in vehicle travel process and acceleration;
In this step, described speed is to highway and Class I highway:
=60km/h, 80km/h, 100km/h, 120km/h; To two, three, Class IV highway:
=20km/h, 40km/h, 60km/h, 80km/h.
C). vehicle travels, and a certain section that chooses real road, as experiment section, allows vehicle to be evaluated travel on test section;
D). data acquisition, in the process that vehicle travels, utilizes scrambler and acceleration transducer with the fixed cycle, the instantaneous velocity of continuous collection vehicle
with vertical motion acceleration
;
Choose the speed of a motor vehicle
the distance that in size metastable a period of time, vehicle travels, as effectively testing section, has if effectively test in section
group instantaneous velocity
and acceleration
,
; Formula (1) is utilized to calculate the average velocity of effectively testing in section
:
（1）；
E). calculate dynamic load coefficient and standard deviation thereof, calculate vehicle dynamic load coefficient according to formula (2)
:
（2）
Wherein,
for acceleration of gravity;
Formula (3) is utilized to calculate the standard deviation of vehicle dynamic load coefficient:
（3）；
F). calculate dead load reduction coefficient, at average velocity
under condition, formula (4) calculating vehicle axles dynamic load is utilized to be scaled the conversion coefficient of dead load needed for bituminous pavement design
:
（4）
Wherein,
for dynamic load coefficient,
for dynamic load coefficient distribution probability, its size is according to following table value:
Table 1 dynamic load coefficient and distribution probability thereof
| i=1 | i=2 | i=3 | i=4 | i=5 | i=6 | i=7 | i=8 | |
| Dynamic load coefficient | 3 σ D | 2.9σ D | 2.7σ D | 2.5 σ D | 2.3σ D | 2.1σ D | 1.9σ D | 1.7σ D |
| Distribution probability % | 0.135 | 0.1205 | 0.2106 | 0.3537 | 0.5705 | 0.8847 | 1.318 | 1.8869 |
Continued 2 dynamic load coefficient and distribution probability thereof
| i=9 | i=10 | i=11 | i=12 | i=13 | i=14 | i=15 | i=16 | |
| Dynamic load coefficient | 3 σ D | 2.9σ D | 2.7σ D | 2.5 σ D | 2.3σ D | 2.1σ D | 1.9σ D | 1.7σ D |
| Distribution probability % | 0.135 | 0.1205 | 0.2106 | 0.3537 | 0.5705 | 0.8847 | 1.318 | 1.8869 |
G). dynamic load is converted into dead load, destroys equivalence principle according to prefabricate pile road pavement, at car speed be
condition under, dynamic load is converted into the dead load needed for Pavement Design according to formula (5):
（5）
Load numerical value after utilizing dynamic load to be converted into dead load is evaluated, for pavement construction proposes more realistic theoretical direction.
The assessment method of vehicle axles dynamic load measuring instrument of the present invention, be equivalent to principle with pavement destruction and vehicle dynamic load is scaled dead load, propose scientific theory and computing method that dead load is converted to dynamic load, for pavement construction proposes more realistic theoretical direction, for the damaging influence utilizing dynamic load to study vehicle road pavement has established theoretical foundation.
Claims (6)
1. a vehicle axles dynamic load measuring instrument, comprise be fixed on vehicle hub multiple to add long bolt (1) and be fixed on the rotation platform (3) added on long bolt, the surrounding of rotation platform offers and the bolt hole adding long bolt and match; It is characterized in that: also comprise mounting platform (7), scrambler (10) and fixed bar (9), the center position of described rotation platform offers the bolt hole matched with bearing rod (2), and mounting platform is fixed on bearing rod rotationally by bearing (6); Scrambler is fixed on mounting platform, and the input shaft of scrambler is fixedly connected with bearing rod through shaft coupling (8), and fixed bar and mounting platform fix, and during measurement, the upper end of fixed bar and the nonrotational position of car body fix; Rotation platform is provided with the acceleration transducer for vertical direction acceleration in measuring vehicle driving process.
2. vehicle axles dynamic load measuring instrument according to claim 1, it is characterized in that: described mounting platform (7) is U-lag shape, the two sides of U-lag mounting platform all offer through hole (13), the through hole of mounting platform side matches with bearing (6), and the through hole of opposite side matches with scrambler (10).
3. vehicle axles dynamic load measuring instrument according to claim 1 and 2, is characterized in that: described in add long bolt (1) middle part be provided with boss (11) or one end and be provided with and lengthen cap (12).
4. vehicle axles dynamic load measuring instrument according to claim 1 and 2, it is characterized in that: described in add long bolt (1) and fixed by the first nut (4) and rotation platform (3), bearing rod (2) is fixed by the second nut (5) and rotation platform.
5., based on an assessment method for vehicle axles dynamic load measuring instrument according to claim 1, be equivalent to principle with pavement destruction and vehicle dynamic load be scaled dead load, it is characterized in that, realized by following steps:
A). take static shaft weight, select the vehicle of model experiment, weigh the heavy G of stationary vehicle axle
s;
B). loading vehicles instrument, the wheel hub of Vehicle Axles to be evaluated is installed vehicle axles dynamic load measuring instrument as described in claim 1, to measure the speed in vehicle travel process and acceleration;
C). vehicle travels, and a certain section that chooses real road, as experiment section, allows vehicle to be evaluated travel on test section;
D). data acquisition, in the process that vehicle travels, utilizes scrambler and acceleration transducer with the fixed cycle, the instantaneous velocity v of continuous collection vehicle and vertical motion acceleration a;
Choose the distance of vehicle traveling in speed of a motor vehicle v size metastable a period of time as effectively testing section, if effectively test total n group instantaneous velocity v in section
jwith acceleration a
j, j=0,1,2 ..., n; Formula (1) is utilized to calculate the average velocity V effectively tested in section:
E). calculate dynamic load coefficient and standard deviation thereof, calculate vehicle dynamic load coefficient D according to formula (2)
i:
Wherein, g is acceleration of gravity;
Formula (3) is utilized to calculate the standard deviation of vehicle dynamic load coefficient:
F). calculate dead load reduction coefficient, under average velocity V condition, utilize formula (4) calculating vehicle axles dynamic load to be scaled the conversion coefficient k of dead load needed for bituminous pavement design:
Wherein, a
ifor dynamic load coefficient, p
ifor dynamic load coefficient distribution probability, its size is according to following table value:
Table 1 dynamic load coefficient and distribution probability thereof
Continued 2 dynamic load coefficient and distribution probability thereof
G). dynamic load is converted into dead load, and destroying equivalence principle according to prefabricate pile road pavement, is under the condition of V at car speed, dynamic load is converted into the dead load needed for Pavement Design according to formula (5):
G
D＝k×Gs(5)
Load numerical value after utilizing dynamic load to be converted into dead load is evaluated, for pavement construction proposes more realistic theoretical direction.
6. the assessment method of vehicle axles dynamic load measuring instrument according to claim 5, is characterized in that: steps d) described in speed to highway and Class I highway: v=60km/h or 80km/h or 100km/h or 120km/h; To two, three, Class IV highway: v=20km/h or 40km/h or 60km/h or 80km/h.
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|---|---|---|---|
| CN201410313740.0A CN104122022B (en) | 2014-07-03 | 2014-07-03 | Vehicle axles dynamic load measuring instrument and assessment method |
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|---|---|---|---|
| CN201410313740.0A CN104122022B (en) | 2014-07-03 | 2014-07-03 | Vehicle axles dynamic load measuring instrument and assessment method |
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Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1226986A1 (en) * | 2001-01-29 | 2002-07-31 | Ford Global Technologies, Inc. | Load estimator |
| EP2602602A1 (en) * | 2011-12-08 | 2013-06-12 | Joachim Hug | Vehicle test status |
| CN103292944A (en) * | 2013-06-17 | 2013-09-11 | 哈尔滨工业大学 | Device for measuring vehicle dynamic load |
| CN103837362A (en) * | 2014-03-11 | 2014-06-04 | 哈尔滨工业大学 | Method for measuring vehicle dynamic load |
| CN103852149A (en) * | 2012-11-28 | 2014-06-11 | 西安正昌电子有限责任公司 | Automobile loading capacity self-measuring sensor |
| CN203929301U (en) * | 2014-07-03 | 2014-11-05 | 山东交通学院 | Vehicle axles dynamic load measuring instrument |
-
2014
- 2014-07-03 CN CN201410313740.0A patent/CN104122022B/en not_active Expired - Fee Related
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1226986A1 (en) * | 2001-01-29 | 2002-07-31 | Ford Global Technologies, Inc. | Load estimator |
| EP2602602A1 (en) * | 2011-12-08 | 2013-06-12 | Joachim Hug | Vehicle test status |
| CN103852149A (en) * | 2012-11-28 | 2014-06-11 | 西安正昌电子有限责任公司 | Automobile loading capacity self-measuring sensor |
| CN103292944A (en) * | 2013-06-17 | 2013-09-11 | 哈尔滨工业大学 | Device for measuring vehicle dynamic load |
| CN103837362A (en) * | 2014-03-11 | 2014-06-04 | 哈尔滨工业大学 | Method for measuring vehicle dynamic load |
| CN203929301U (en) * | 2014-07-03 | 2014-11-05 | 山东交通学院 | Vehicle axles dynamic load measuring instrument |
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