CN106840471A - Active force integrated measurement system and method in a kind of intact stability and tire tread - Google Patents
Active force integrated measurement system and method in a kind of intact stability and tire tread Download PDFInfo
- Publication number
- CN106840471A CN106840471A CN201710002195.7A CN201710002195A CN106840471A CN 106840471 A CN106840471 A CN 106840471A CN 201710002195 A CN201710002195 A CN 201710002195A CN 106840471 A CN106840471 A CN 106840471A
- Authority
- CN
- China
- Prior art keywords
- tire
- measurement
- vehicle
- brake pedal
- real
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01L—MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
- G01L1/00—Measuring force or stress, in general
- G01L1/04—Measuring force or stress, in general by measuring elastic deformation of gauges, e.g. of springs
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01L—MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
- G01L3/00—Measuring torque, work, mechanical power, or mechanical efficiency, in general
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01L—MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
- G01L5/00—Apparatus for, or methods of, measuring force, work, mechanical power, or torque, specially adapted for specific purposes
- G01L5/22—Apparatus for, or methods of, measuring force, work, mechanical power, or torque, specially adapted for specific purposes for measuring the force applied to control members, e.g. control members of vehicles, triggers
- G01L5/225—Apparatus for, or methods of, measuring force, work, mechanical power, or torque, specially adapted for specific purposes for measuring the force applied to control members, e.g. control members of vehicles, triggers to foot actuated controls, e.g. brake pedals
-
- 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
Abstract
The invention discloses active force integrated measurement system and method in a kind of intact stability and tire tread, including alignment system, intact stability measuring system, tire dynamic strain measurement system and Data collection and precessing system, wherein：The alignment system is used for traveling-position information, run duration and the timing information of real time record vehicle；The intact stability measuring system is used for real-time measuring vehicle barycenter stability parameter, steering wheel steering angle parameter and brake pedal force parameter；The tire dynamic strain measurement system is used for the rotating speed of measurement tire, acceleration and wheel hub and tyre surface strain information in real time；The Data collection and precessing system is used to gather the alignment system, intact stability measuring system, the data of tire dynamic strain measurement system record, is processed and is stored.By the present invention can quick and precisely, synchronous the unstable state of detection vehicle be input under stability parameter and tire tread in active force time-varying characteristics.
Description
Technical field
The present invention relates to vehicle testing field, active force integrated measurement system in espespecially a kind of intact stability and tire tread
And method.
Background technology
Scene of the accident tire trace reflects movement locus, travel speed, tire condition and the braking of accident anterior-posterior vehicle
Measure, instantaneous velocity, collision characteristic, contact site and the point of impingement of vehicle collision anterior-posterior are can determine that by analyzing tire trace
Position.Therefore, surveying and analyzing live tire trace just turns into the most common means of accident treatment.However, road traffic accident
The tire print at scene often shows certain aobvious hidden characteristic, as shown in Figure 1.It is this with show hidden feature tire trace be
When tire contacts with rough road and Relative sliding occurs under emergency brake of vehicle operating mode, in load, contact stress and friction life
Make tread-rubber particles from getting loose and along tyre width and the performance directly perceived of the even adhesion of circumferential asymmetry under the effect of the various factors couplings such as heat
(three-dimensional global abrasion), is the result of vehicle, tire and Road System comprehensive function.Under cover abundant friendship in the middle of this trace
Logical accident information, parses the important directions that traffic accident judges after trace is with the associate feature of intact stability.
The key for analyzing tire print characteristic is to obtain active force dynamic variation characteristic in tire tread to be moved with vehicle unstable state
The association mechanism of state parameter, and how to obtain active force time-varying characteristics in vehicle unstable state dynamic parameter and tire tread simultaneously is base
Plinth.Simultaneously, it is traditional for this special field of mechanics analysis, Performance Evaluation in intact stability and tire tread
Assessment method has not been applied to.It is the development for efficiently advancing traffic accident to judge on tire print characteristic in judging, it is necessary to pin
Dynamic force in intact stability measurement and tire tread is studied.
The content of the invention
The invention provides active force integrated measurement system and method in a kind of intact stability and tire tread, can be simultaneously
Active force in intact stability and tire tread is measured in real time.
In order to reach the object of the invention, the present invention provides active force integral measuring system in a kind of intact stability and tire tread
System, including alignment system, intact stability measuring system, tire dynamic strain measurement system and data acquisition and processing (DAP) system
System, wherein：
The alignment system is used for traveling-position information, run duration and the timing information of real time record vehicle；
The intact stability measuring system is used for real-time measuring vehicle barycenter stability parameter, steering wheel steering angle parameter
With brake pedal force parameter；
The tire dynamic strain measurement system is used for the rotating speed of measurement tire, acceleration and wheel hub and tyre surface in real time and answers
Change information；
The Data collection and precessing system is used to gather the alignment system, intact stability measuring system, wheel movement of the foetus
The data of state strain measurement system record, are processed and are stored.
Alternatively, the alignment system is further used for using general packet radio service gprses technology, receives satellite letter
Number, the running orbit of registration of vehicle, run time and braking distance by the way of difference.
Alternatively, the intact stability measuring system includes gyroscope, steering wheel angle measuring instrument and brake pedal force
Measuring instrument, wherein,
The gyroscope is located at vehicle centroid, for real-time measuring vehicle barycenter stability parameter；
The steering wheel angle measuring instrument is located at steering wheel, for real-time measurement direction disk corner and torque；
The brake pedal force measuring instrument is used to detect the power to trampling brake pedal.
Alternatively, the brake pedal force measuring instrument is further used for when the power for trampling brake pedal is detected, triggering
The alignment system, gyroscope, steering wheel angle measuring instrument and tire dynamic strain measurement system start recording.
Alternatively, the intact stability measuring system also includes that what is be connected with the brake pedal force measuring instrument wirelessly touches
Transmitting apparatus,
The wireless trigger device is used for the trigger message according to the brake pedal force measuring instrument, wirelessly sends out
Send trigger signal to the tire dynamic strain measurement system.
Alternatively, the tire dynamic strain measurement system includes：Strain transducer device, installation on wheel hub
In the PVDF devices and wheel speed sensors measurement apparatus of inside tires, wherein
The strain transducer device is used to measure wheel hub stress；
The PVDF devices are used to measure tyre surface stress；
The wheel speed sensors measurement apparatus are used to measure the rotating speed and acceleration information of tire.
Alternatively, the tire dynamic strain measurement system also includes：Data wireless transmitter,
The data wireless transmitter is used to receive trigger signal by ZigBee protocol Zigbee wireless transmission methods, and
The trigger signal is sent to strain transducer device, PVDF devices and wheel speed sensors measurement apparatus, and, pass through
The data is activation that Zigbee wireless transmission methods will be measured is to the Data collection and precessing system.
Alternatively, the tire dynamic strain measurement system also includes：Energy-autarchic device,
The energy-autarchic device is used to be the strain transducer device, PVDF devices, wheel speed sensors measurement apparatus
Powered with data wireless transmitter.
The present invention also provides a kind of active force integral measuring method in intact stability and tire tread, including：
When the power for trampling brake pedal is detected, the running orbit of real-time measuring vehicle, run time and braking distance,
And real-time measuring vehicle barycenter stability parameter, steering wheel steering angle parameter, the rotating speed of tire, acceleration and wheel hub and tire
Face strain information；
Data are obtained to measurement to be acquired, process and store.
Alternatively, it is described when the power for trampling brake pedal is detected, the running orbit of real-time measuring vehicle, run time
And braking distance, and measuring vehicle barycenter stability parameter, steering wheel steering angle parameter, the rotating speed of tire, acceleration in real time
And in the step of wheel hub and tyre surface strain information,
General packet radio service gprses technology is used by alignment system, satellite-signal is received, by the way of difference
The running orbit of registration of vehicle, run time and braking distance；
By the real-time measuring vehicle barycenter stability parameter of gyroscope at vehicle centroid；
By the real-time measurement direction disk corner of steering wheel angle measuring instrument and torque at steering wheel；
Power to trampling brake pedal is detected by brake pedal force measuring instrument；
By strain transducer measurement device wheel hub stress；
By PVDF measurement device tyre surface stress；
The rotating speed and acceleration information of tire are measured by wheel speed sensors measurement apparatus.
By the embodiment of the present invention, stability parameter that can be under detection vehicle unstable state input quick and precisely, synchronous
And active force time-varying characteristics in tire tread, there is theoretical valency very high for analysis scene of a traffic accident tire print mechanism of production
Value, while being brought great convenience to intact stability and tire action force analysis and test application.It is intact stability, tire
The research work of trace Analysis on Mechanism is laid a good foundation.
Other features and advantages of the present invention will be illustrated in the following description, also, the partly change from specification
Obtain it is clear that or being understood by implementing the present invention.The purpose of the present invention and other advantages can be by specification, rights
Specifically noted structure is realized and obtained in claim and accompanying drawing.
Brief description of the drawings
Accompanying drawing is used for providing further understanding technical solution of the present invention, and constitutes a part for specification, with this
The embodiment of application for explaining technical scheme, does not constitute the limitation to technical solution of the present invention together.
Fig. 1 is the aobvious implicit printing mark performance plot of tire；
Fig. 2 is that the composition of active force integrated measurement system in the intact stability and tire tread of the embodiment of the present invention is illustrated
Figure；
Fig. 3 is the intact stability measuring system composition schematic diagram of the embodiment of the present invention；
Fig. 4 is the tire dynamic strain measurement system composition schematic diagram of the embodiment of the present invention；
Fig. 5 (a) is PVDF devices longitudinally layout and measuring principle；
Fig. 5 (b) is PVDF thin film measuring principle；
Fig. 5 (c) is PVDF device lateral schematic layout patterns；
Fig. 6 is the energy-autarchic device composition schematic diagram of the embodiment of the present invention；
Fig. 7 is that the composition of active force integrated measurement system in the intact stability and tire tread of present invention application example is illustrated
Figure；
Fig. 8 is active force integral measuring method flow diagram in the intact stability and tire tread of the embodiment of the present invention.
Specific embodiment
To make the object, technical solutions and advantages of the present invention become more apparent, below in conjunction with accompanying drawing to the present invention
Embodiment be described in detail.It should be noted that in the case where not conflicting, in the embodiment and embodiment in the application
Feature can mutually be combined.
At present, by indoor static, dynamic test it is measurable and verify the size of the tire force based on point contact model and
Variation characteristic, is analyzed tire dynamics characteristic comprehensively by being fitted, and its Main Function is the stability for analyzing vehicle, but
The dynamic characteristic of tire changes and cannot carry out accurate measurement by laboratory test vehicle in the process of running；Using tire tread planted agent
Power test equipment (Tirescan) can carry out detailed analysis to three-dimensional active force in tire tread, but can only analyze fixed road
Transient state contact performance when section tire passes through；Although the finite element analysis model based on ABAQUS can comprehensively analyze tire force
Dynamic characteristic etc. in, tire contact plane, but acquisition tire parameter is more difficult, and some parameters still need fitting, have impact on
The precision of mechanics of tire analysis.
In recent years, the tire dynamic strain that develops into of PVDF e measurement technologies is measured there is provided possible in real time.PVDF is very soft,
Can adapt to very well rubber for tire deformation it is big the characteristics of, while because its rigidity is small, to the interference very little of rubber for tire, measure more accurate
Really.The indexs such as mechanical performance, the physical property of current PVDF thin film can meet test environment requirement in tire.Revolved from high speed
The inside tires transmission tire inner sensor measurement data for turning can only wirelessly, and WLAN communication technology is fast
Speed development makes it possible the real-time tranception of non-cpntact measurement data.Zigbee (ZigBee protocol) data transfer is a kind of low coverage
From, low-power consumption, low rate, the two-way wireless communication technology of low cost, the data transfer of 250kbps speed is capable of achieving, is adapted to wheel
The data transfer of tire inner sensor, is tire dynamic strain data transfer, vehicle stabilization performance and Force measurement in tire tread
System test platform development provides the foundation.
The embodiment of the present invention provides one kind can be while measuring and commenting to active force in intact stability and tire tread
The measuring system of valency.The features such as system has that design is simple, operand is small, is easy to implement.This system can be to vehicle stabilization
Property and tire tread in active force carry out measurement and evaluation during high-precision real, to application bring very big simplicity.
As shown in Fig. 2 active force integrated measurement system in the intact stability and tire tread of the embodiment of the present invention, can survey
Active force in tire tread is measured in real time while amount intact stability parameter, including alignment system 11, intact stability
Measuring system 12, tire dynamic strain measurement system 13 and Data collection and precessing system 14, wherein：
The alignment system 11 is used for real time record vehicle traveling-position information, run duration and timing information；
The intact stability measuring system 12 is used for real-time measuring vehicle barycenter stability parameter, steering wheel steering angle and joins
Number and brake pedal force parameter；
The tire dynamic strain measurement system 13 is used for the rotating speed of measurement tire, acceleration and wheel hub and tyre surface in real time
Strain information；
The Data collection and precessing system 14 is used to gather the alignment system, intact stability measuring system, tire
The data of dynamic strain measurement system record, are processed and are stored.
By the embodiment of the present invention, stability parameter that can be under detection vehicle unstable state input quick and precisely, synchronous
And active force time-varying characteristics in tire tread, there is theoretical valency very high for analysis scene of a traffic accident tire print mechanism of production
Value, while being brought great convenience to intact stability and tire action force analysis and test application.It is intact stability, tire
The research work of trace Analysis on Mechanism is laid a good foundation.
Each part to active force integrated measurement system in intact stability and tire tread is carried out specifically below
It is bright.
First, alignment system 11
The alignment system 11 is further used for using GPRS (General Packet Radio Service, general point
Group wireless traffic) technology, receive satellite-signal, by the way of difference registration of vehicle running orbit, run time and braking away from
From.
Braking distance is triggered by brake pedal force measuring instrument in intact stability measuring system 12, is drawn through Difference Calculation.
By GPRS alignment systems 11, vehicle operation coordinate is carried out into real-time storage, processed by later data and be capable of achieving vehicle rail
The multi-mode of mark shows.Meanwhile, based on GPRS alignment systems 11 for whole system is provided when base, during the measurement of all measuring systems
Sequence is carried out in strict accordance with now base.
2nd, intact stability measuring system 12
As shown in figure 3, the intact stability measuring system 12 includes gyroscope 121, the and of steering wheel angle measuring instrument 122
Brake pedal force measuring instrument 123, wherein,
The gyroscope 121 is located at vehicle centroid, for real-time measuring vehicle barycenter stability parameter；
Wherein, the gyroscope 121 can use IMU02 gyroscopes；
The steering wheel angle measuring instrument 122 is located at steering wheel, for real-time measurement direction disk corner and torque；
The brake pedal force measuring instrument 123 is used to detect the power to trampling brake pedal.
In the present embodiment, by steering wheel angle measuring instrument 122 and the measuring vehicle model of brake pedal force measuring instrument 123
|input paramete, by the change of the measuring vehicle barycenter stability dynamic parameter of gyroscope 121.
In the present embodiment, the brake pedal force measuring instrument 123 is further used for working as the power for detecting and trampling brake pedal
When, trigger the alignment system 11, gyroscope 121, steering wheel angle measuring instrument 122 and tire dynamic strain measurement system 13 and open
Begin record.
The brake pedal force measuring instrument 123 is further used for, when can't detect the power for trampling brake pedal, triggering institute
State alignment system 11, gyroscope 121, steering wheel angle measuring instrument 122 and the stop recording of tire dynamic strain measurement system 13 note
Record.
In other embodiments, or when the power for trampling brake pedal is more than or equal to predetermined threshold value, touch
Send out alignment system 11, gyroscope 121, steering wheel angle measuring instrument 122 and tire dynamic strain measurement system 13 described and start note
Record, when the power for trampling brake pedal is less than predetermined threshold value, triggers the alignment system 11, gyroscope 121, steering wheel and turns
Angle measuring instrument 122 and the stop recording of tire dynamic strain measurement system 13.
The intact stability measuring system 12 may also include be connected with the brake pedal force measuring instrument 123 wireless and touch
Transmitting apparatus 124,
The wireless trigger device 124 is used for the trigger message according to the brake pedal force measuring instrument 123, by wireless
Mode sends trigger signal to the tire dynamic strain measurement system 13.
The wireless trigger device 124 can send trigger signal to tire dynamic strain using Zigbee data transfer modes
Measuring system 13.
In the present embodiment, steering wheel angle measuring instrument 122 is measured to steering wheel angle and torque, brake pedal force
123 pairs of power for trampling brake pedal of measuring instrument are measured, and the stability parameter at vehicle centroid is entered by IMU02 gyroscopes 121
Row measurement in real time, is the dynamic parameter at barycenter through Coordinate Conversion.Three measurement apparatus are touched by brake pedal force measuring instrument 123
Hair, and the storage and analysis of data are carried out as benchmark, measured data are directly transferred to Data collection and precessing system 14,
Can be through in the middle of the data storage recorder in high-speed bus technical transmission to Data collection and precessing system 14, can be further
Processed and analyzed by host computer and its software systems unification.
3rd, tire dynamic strain measurement system 13
As shown in figure 4, tire dynamic strain measurement system 13 includes：Strain transducer device 131 on wheel hub,
Installed in the PVDF devices 132 and wheel speed sensors measurement apparatus 133 of inside tires, wherein
The strain transducer device 131 is used to measure wheel hub stress；
Wherein, strain transducer device 131 may include multiple strain transducers on wheel hub.
The PVDF devices 132 are used to measure tyre surface stress；
As shown in Fig. 5 (a)~Fig. 5 (c), PVDF devices 132 may include to be arranged on multiple PVDF devices of inside tires.Its
In, LpRepresent tire ground contact length, TxSensor ground length is represented, v represents Vehicle Speed, and ω represents vehicle wheel rotation angle
Speed, r represents sensor and tire radius, and R (x, y) represents radius of curvature of the sensor in corresponding point position, and θ represents sensor sheet
Face angle, F represents stress in the x direction.When PVDF devices receive the power in x directions, PVDF thin film curvature changes, this
When can by measure PVDF thin film deflection solve stress size.
The wheel speed sensors measurement apparatus 133 are used to measure the rotating speed and acceleration information of tire.
The wheel speed sensors measurement apparatus 133 can use Kisler WPT wheel speed sensors.
In the present embodiment, by arranging strain of the strain transducer to wheel hub during intact stability around wheel hub
Measure；PVDF devices are then used the measurement of tyre surface stress, appropriate installed in inside tires, installation site such as Fig. 5 (c)
Shown, its density is determined by research purpose.In vehicle operation, tire dynamic strain measurement system 13 is in brake pedal force
Start to measure tire dynamic strain under the triggering of measuring instrument 123.
Although current PVDF devices can realize the real-time dynamic monitoring of deformation and acceleration information in tire, its
In deformation data it is equivalent each other with acceleration information, can mutually in inversion of phases, but measurement process by simple Mathematical treatment
Noise is larger and there is certain error.Therefore, it is that wheel acceleration is accurately measured, is sensed using Kisler wheel speeds
Device measuring system, rotating speed, corner acceleration to tire are measured and contrast verification.
In the present embodiment, the tire dynamic strain measurement system also includes：Data wireless transmitter 134,
The data wireless transmitter 134 is used to wirelessly receive trigger signal, and by the trigger signal
Send to strain transducer device 131, PVDF devices 132 and wheel speed sensors measurement apparatus 133, and, wirelessly
The data is activation that will be measured is to the Data collection and precessing system 14.
The data wireless transmitter 134 can transmit data using ZigBee protocol Zigbee Radio Transmission Technologys.
Institute's gathered data is not stored to be directly transmitted by Zigbee Radio Transmission Technologys, is filled by data wireless receiving and dispatching
Put 134 and data are transferred to Data collection and precessing system 14 in real time, thus mode completes the collection of strain information and wireless biography
It is defeated.
Alternatively, the tire dynamic strain measurement system 13 also includes：Energy-autarchic device 135,
The energy-autarchic device 135 is used to be the strain transducer device 131, PVDF devices 132, wheel speed sensors
Measurement apparatus 133 and data wireless transmitter 134 are powered.As shown in fig. 6, energy-autarchic device 135 includes what is be sequentially connected
Charge management circuit, lithium battery, discharge protection circuit and ON-OFF control circuit, charge power supply respectively with charge management circuit and open
Close control circuit to be connected, ON-OFF control circuit output voltage is the strain transducer device 131, PVDF devices 132, wheel speed biography
Sensor measurement apparatus 133 and data wireless transmitter 134 are powered.
4th, Data collection and precessing system 14
The Data collection and precessing system 14 is used to gather the alignment system, intact stability measuring system, tire
The data of dynamic strain measurement system record, are processed and are stored, it may include data acquisition and processing (DAP) module and data storage
Recorder.
Wherein, data acquisition and processing (DAP) module can use DEWEsoft, and the data collected through sensor exist certain
Noise, and data form is likely to need conversion, therefore data acquisition and processing (DAP) module need to carry out proper treatment to data.To institute
Tire dynamic parameter, intact stability parameter and the tire dynamic strain information for collecting unify to gather and process, finally
Acquisition parameter is transmitted to data storage recorder through high-speed bus technology, for the data analysis and process in later stage.Extremely
This, completes measurement and data acquisition, storage and the analysis work of whole system.
As shown in fig. 7, being active force integrated measurement system in the intact stability and tire tread of present invention application example
Composition schematic diagram.Intact stability parameter is carried out by steering wheel angle measuring instrument, brake pedal force measuring instrument and IMU02 gyroscopes
Measurement, wheel dynamic characteristic is measured by Kistler WPT wheel speed sensors, and GPRS/ big-dipper satellites measurement module implements measurement car
Running orbit, braking time and braking distance；Tire dynamic strain measuring system is carried out to wheel hub stress and tyre surface stress
Data are transmitted by measurement through local radio transmission technology in real time；All system triggers are all touched by brake pedal force measuring instrument
Clockwork spring is triggered, and measured data are transmitted to data acquisition and procession module, most afterwards through height through the when base that satellite system is provided
Fast bussing technique collects to data storage recorder, for the data analysis and research in later stage.
As shown in fig. 7, be active force integral measuring method in the intact stability and tire tread of the embodiment of the present invention, bag
Include：
Step 201, when the power for trampling brake pedal is detected, the running orbit of real-time measuring vehicle, run time and
Braking distance, and in real time measuring vehicle barycenter stability parameter, steering wheel steering angle parameter, the rotating speed of tire, acceleration with
And wheel hub and tyre surface strain information；
Wherein, in this step, GPRS technologies are used by alignment system, satellite-signal is received, by the way of difference
The running orbit of registration of vehicle, run time and braking distance.
By information such as GPRS alignment system real time record vehicle traveling-positions information, the timely bases of run duration, this is this
Technical scheme needs time reference to be processed and object.
By the real-time measuring vehicle barycenter stability parameter of gyroscope at vehicle centroid；By at steering wheel
The real-time measurement direction disk corner of steering wheel angle measuring instrument and torque；Detected to trampling braking by brake pedal force measuring instrument
The power of pedal.
Barycenter stability parameter in vehicle travel process can be carried out in real time by the IMU02 gyroscopes installed in nearly barycenter
Measurement, turning angle of steering wheel input is measured by steering wheel angle measuring instrument, and brake force is surveyed in real time by brake pedal force
Amount.
By strain transducer measurement device wheel hub stress；By PVDF measurement device tyre surface stress；Sensed by wheel speed
Device measurement apparatus measure the rotating speed and acceleration information of tire.
Wherein, the overall contact information on the rotating speed of tire, acceleration and tire road surface, can be by Kisler wheel speed sensors
Measured in real time；The fixation of the layout and data acquisition, Transmission system of PVDF devices, composition wheel are carried out in inside tires
Movement of the foetus state strain measurement system, is measured tire action force and data is wirelessly transferred in real time in vehicle operation.
The wherein demarcation of time carries out real-time synchronization by the way of wireless trigger to data, and this wireless trigger system is by brake pedal force
Measuring instrument is triggered.
Step 202, obtains data and is acquired, processes and stores to measurement.
Real-time Collection and treatment are carried out to data by vehicle carried data collecting and processing module and data memory recorder, is led to
Cross data acquisition and processing (DAP) module and data are real-time transmitted to data storage recorder by high-speed bus technology, be easy to the later stage pair
All data in vehicle operation carry out unifying to gather, process and show.
In sum, the embodiment of the present invention has the following advantages that：
1st, effectively GPRS data is gathered, data transmission between wireless module, data processing is blended in one and is with storage
System, for active force dynamic characteristic provides a good platform in simple and effective evaluation intact stability and tire tread.
2nd, tire dynamic strain measurement system can accurately measure three during tire unsteady drying is grounded in real time
To active force variation characteristic, easy to use, certainty of measurement and real-time are high.
3rd, it is effective to have filled up the measurement in real time of intact stability and tire action force and the cavity evaluated, it is that vehicle is steady from now on
The measurement of qualitative and tire action force, the parsing of tire print mechanism are laid a good foundation.
Analyzed more than, with reference to active force in the intact stability and tire tread of tire dynamic strain measurement technology
Integrated measurement system in intact stability and tire tread active force simultaneously carry out real-time testing provide one kind it is easy and effective, fast
Fast accurately method.The method of the embodiment of the present invention extends to intact stability analysis, tire print formation, tire wear
Deng related field, have broad application prospects.
Obviously, those skilled in the art should be understood that the module or step of the above-mentioned embodiment of the present invention can use logical
With computing device realize that they can be concentrated on single computing device, or be distributed in multiple computing device institutes group
Into network on, alternatively, the program code that they can be can perform with computing device be realized, it is thus possible to they are deposited
Storage is performed by computing device in the storage device, and in some cases, can perform institute with different from order herein
The step of showing or describe, or they are fabricated to integrated circuit modules respectively, or by the multiple modules or step in them
Suddenly it is fabricated to single integrated circuit module to realize.So, the embodiment of the present invention is not restricted to any specific hardware and software
With reference to.
Although disclosed herein implementation method as above, described content be only readily appreciate the present invention and use
Implementation method, is not limited to the present invention.Technical staff in any art of the present invention, is taken off the present invention is not departed from
On the premise of the spirit and scope of dew, any modification and change, but the present invention can be carried out in the form and details implemented
Scope of patent protection, must be still defined by the scope of which is defined in the appended claims.
Claims (10)
1. active force integrated measurement system in a kind of intact stability and tire tread, it is characterised in that including alignment system, vehicle
Stability measurement system, tire dynamic strain measurement system and Data collection and precessing system, wherein：
The alignment system is used for traveling-position information, run duration and the timing information of real time record vehicle；
The intact stability measuring system is used for real-time measuring vehicle barycenter stability parameter, steering wheel steering angle parameter and system
Dynamic pedal force parameter；
The tire dynamic strain measurement system is used for the rotating speed of measurement tire, acceleration and wheel hub in real time and tyre surface strain letter
Breath；
The Data collection and precessing system dynamically should for gathering the alignment system, intact stability measuring system, tire
Become the data of measuring system record, processed and stored.
2. the system as claimed in claim 1, it is characterised in that
The alignment system is further used for, using general packet radio service gprses technology, satellite-signal being received, using difference
The running orbit of mode registration of vehicle, run time and braking distance.
3. the system as claimed in claim 1, it is characterised in that
The intact stability measuring system includes gyroscope, steering wheel angle measuring instrument and brake pedal force measuring instrument, wherein,
The gyroscope is located at vehicle centroid, for real-time measuring vehicle barycenter stability parameter；
The steering wheel angle measuring instrument is located at steering wheel, for real-time measurement direction disk corner and torque；
The brake pedal force measuring instrument is used to detect the power to trampling brake pedal.
4. system as claimed in claim 3, it is characterised in that
The brake pedal force measuring instrument is further used for, when the power for trampling brake pedal is detected, triggering the positioning system
System, gyroscope, steering wheel angle measuring instrument and tire dynamic strain measurement system start recording.
5. system as claimed in claim 4, it is characterised in that the intact stability measuring system also includes and the braking
The connected wireless trigger device of pedal force measuring instrument,
The wireless trigger device is used for the trigger message according to the brake pedal force measuring instrument, wirelessly sends and touches
Signal to the tire dynamic strain measurement system.
6. the system as claimed in claim 1, it is characterised in that the tire dynamic strain measurement system includes：Installed in wheel
Strain transducer device on hub, piezoelectric film sensor PVDF devices and wheel speed sensors the measurement dress installed in inside tires
Put, wherein
The strain transducer device is used to measure wheel hub stress；
The PVDF devices are used to measure tyre surface stress；
The wheel speed sensors measurement apparatus are used to measure the rotating speed and acceleration information of tire.
7. system as claimed in claim 6, it is characterised in that the tire dynamic strain measurement system also includes：Data without
Line R-T unit,
The data wireless transmitter is used to receive trigger signal by ZigBee protocol Zigbee wireless transmission methods, and by institute
Trigger signal is stated to send to strain transducer device, PVDF devices and wheel speed sensors measurement apparatus, and, by Zigbee without
The data is activation that line transmission means will be measured is to the Data collection and precessing system.
8. system as claimed in claim 7, it is characterised in that the tire dynamic strain measurement system also includes：Energy is certainly
To device,
The energy-autarchic device is used to be the strain transducer device, PVDF devices, wheel speed sensors measurement apparatus sum
Powered according to wireless transmitter.
9. a kind of active force integral measuring method in intact stability and tire tread, including：
When the power for trampling brake pedal is detected, the running orbit of real-time measuring vehicle, run time and braking distance, and
Real-time measuring vehicle barycenter stability parameter, steering wheel steering angle parameter, the rotating speed of tire, acceleration and wheel hub and tyre surface should
Change information；
Data are obtained to measurement to be acquired, process and store.
10. method as claimed in claim 9, it is characterised in that described when the power for trampling brake pedal is detected, surveys in real time
Running orbit, run time and the braking distance of vehicle are measured, and measuring vehicle barycenter stability parameter, steering wheel are turned in real time
In the step of angular dimensions, the rotating speed of tire, acceleration and wheel hub and tyre surface strain information,
General packet radio service gprses technology is used by alignment system, satellite-signal is received, is recorded by the way of difference
The running orbit of vehicle, run time and braking distance；
By the real-time measuring vehicle barycenter stability parameter of gyroscope at vehicle centroid；
By the real-time measurement direction disk corner of steering wheel angle measuring instrument and torque at steering wheel；
Power to trampling brake pedal is detected by brake pedal force measuring instrument；
By strain transducer measurement device wheel hub stress；
By PVDF measurement device tyre surface stress；
The rotating speed and acceleration information of tire are measured by wheel speed sensors measurement apparatus.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710002195.7A CN106840471B (en) | 2017-01-03 | 2017-01-03 | Integrated measurement system and method for vehicle stability and acting force in tire surface |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710002195.7A CN106840471B (en) | 2017-01-03 | 2017-01-03 | Integrated measurement system and method for vehicle stability and acting force in tire surface |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106840471A true CN106840471A (en) | 2017-06-13 |
| CN106840471B CN106840471B (en) | 2020-03-27 |
Family
ID=59117195
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710002195.7A Active CN106840471B (en) | 2017-01-03 | 2017-01-03 | Integrated measurement system and method for vehicle stability and acting force in tire surface |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106840471B (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109540013A (en) * | 2018-10-12 | 2019-03-29 | 东南大学 | A kind of intelligent tire monitoring method and system based on long gauge length optical fibre sensing |
| CN111127883A (en) * | 2019-12-17 | 2020-05-08 | 长安大学 | Method and system for measuring and calculating safe driving speed of intelligent vehicle by considering road surface state |
| WO2020259044A1 (en) * | 2019-06-26 | 2020-12-30 | 麦德荣 | Monitoring system and monitoring method for measuring gross vehicle weight in real time |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201362249Y (en) * | 2009-03-04 | 2009-12-16 | 长安大学 | Four-wheel steering vehicle stability controlling system |
| CN101710027A (en) * | 2009-11-24 | 2010-05-19 | 江苏大学 | Non-linear dynamic characteristic monitoring system and method of vehicle tyre |
| CN102692297A (en) * | 2012-06-13 | 2012-09-26 | 吉林大学 | Braking process-based dynamic automobile gravity position detector and method |
| CN202511943U (en) * | 2012-04-16 | 2012-10-31 | 吉林大学 | Articulated loader dynamic barycenter position monitoring system |
| CN202631193U (en) * | 2012-06-13 | 2012-12-26 | 吉林大学 | Dynamic detector for automotive center-of-gravity position based on brake process |
| CN103786533A (en) * | 2014-02-28 | 2014-05-14 | 安徽农业大学 | System and method for monitoring loads on tires in real time in automobile driving process |
| CN106017941A (en) * | 2016-05-11 | 2016-10-12 | 吉林大学 | Testing system and method for automobile control stability |
-
2017
- 2017-01-03 CN CN201710002195.7A patent/CN106840471B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201362249Y (en) * | 2009-03-04 | 2009-12-16 | 长安大学 | Four-wheel steering vehicle stability controlling system |
| CN101710027A (en) * | 2009-11-24 | 2010-05-19 | 江苏大学 | Non-linear dynamic characteristic monitoring system and method of vehicle tyre |
| CN202511943U (en) * | 2012-04-16 | 2012-10-31 | 吉林大学 | Articulated loader dynamic barycenter position monitoring system |
| CN102692297A (en) * | 2012-06-13 | 2012-09-26 | 吉林大学 | Braking process-based dynamic automobile gravity position detector and method |
| CN202631193U (en) * | 2012-06-13 | 2012-12-26 | 吉林大学 | Dynamic detector for automotive center-of-gravity position based on brake process |
| CN103786533A (en) * | 2014-02-28 | 2014-05-14 | 安徽农业大学 | System and method for monitoring loads on tires in real time in automobile driving process |
| CN106017941A (en) * | 2016-05-11 | 2016-10-12 | 吉林大学 | Testing system and method for automobile control stability |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109540013A (en) * | 2018-10-12 | 2019-03-29 | 东南大学 | A kind of intelligent tire monitoring method and system based on long gauge length optical fibre sensing |
| CN109540013B (en) * | 2018-10-12 | 2020-05-05 | 东南大学 | Intelligent tire monitoring method and system based on long-gauge-length optical fiber sensing |
| WO2020259044A1 (en) * | 2019-06-26 | 2020-12-30 | 麦德荣 | Monitoring system and monitoring method for measuring gross vehicle weight in real time |
| CN111127883A (en) * | 2019-12-17 | 2020-05-08 | 长安大学 | Method and system for measuring and calculating safe driving speed of intelligent vehicle by considering road surface state |
| US11904865B2 (en) | 2019-12-17 | 2024-02-20 | Chang'an University | Intelligent safe vehicle speed measurement method and system capable of considering state of road surface |
Also Published As
| Publication number | Publication date |
|---|---|
| CN106840471B (en) | 2020-03-27 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| Erdogan et al. | Estimation of tire-road friction coefficient using a novel wireless piezoelectric tire sensor | |
| CN104790283B (en) | A kind of surface evenness rapid detection system based on vehicle-mounted accelerometer | |
| CN208635810U (en) | System and vehicle for land vehicle navigation | |
| CN107289941A (en) | A kind of indoor orientation method and device based on inertial navigation | |
| Xiong et al. | A review on in-tire sensor systems for tire-road interaction studies | |
| CN106840471A (en) | Active force integrated measurement system and method in a kind of intact stability and tire tread | |
| CN110000813A (en) | Robot skidding detection method, system and device | |
| CN103162971B (en) | Electric motor car driving process wireless test system | |
| CN205950750U (en) | Transformer station inspection robot control system that navigates based on inertial navigation | |
| CN113183973B (en) | Tire pressure monitoring and road surface information intelligent sensing platform and method based on CAN (controller area network) | |
| CN102529850A (en) | Safe state monitoring method of motor vehicle based on wheel load type intelligent sensing | |
| CN103134683B (en) | The system and method for vehicle motor exhaust brake test is carried out in indoor | |
| CN103884514A (en) | Multifunctional motor vehicle detecting instrument and detecting method thereof | |
| CN107764229A (en) | Intelligent amendment type surface evenness detection device | |
| CN113654566A (en) | Positioning performance evaluation method of road side system, storage medium and vehicle-road cooperative system | |
| EP2992425A1 (en) | Methods and systems for monitoring roadway parameters | |
| CN103499354A (en) | Neyman-Pearson criterion-based zero speed detection method | |
| CN105059318B (en) | A kind of portable railway detector | |
| CN104111095A (en) | Fuel consumption analysis method and system based on automobile traveling state | |
| CN110231179A (en) | A kind of vehicle cross-wind stability test method | |
| CN109506619A (en) | A kind of road surface elevation detection system and its detection method | |
| Breglio et al. | Feel-tire unina: development and modeling of a sensing system for intelligent tires | |
| CN110264741A (en) | Road conditions detection method, device, equipment and medium based on motion sensor | |
| CN206114004U (en) | Synchronous sampling and device of handling vehicle operation information and operating information | |
| CN108828068A (en) | Raceway surface undulatory wear and hurt detection device and method |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |