CN105628396A - Automobile parking braking road test examination automatic determination system and use method thereof - Google Patents

Abstract

The invention relates to an automobile wheel displacement examination automatic determination device, especially relates to an automatic parking braking road test examination automatic determination slope bench. Firstly, an electronic automatic detection system is adopted to replace a human naked eye detection, and therefore the accuracy can be improved, the labor intensity can be reduced, and the fairness and the impartiality of the automobile examination can be realized. Secondly, according to the detection device, the detection slope bench and the detection circuit are integrated into one body, and therefore the detection device is small, the installation is convenient, and the direct connection power supply and the rechargeable battery power supply can be supported, and the detection device is suitable for different detection environments. Thirdly, the use of the slope bench is convenient, and the slope bench can be moved flexibly, and the detection result can be displayed in an on-site alarming way and a wireless alarming way, and in addition, the alarming signal is provided with an acoustic form and an optical form, and the detection result can be filed automatically, and can be transmitted to a handheld terminal by a wireless signal, and the signal is visual and reliable; the threshold value and the detection time can be set by the touch screen and the handheld terminal. Fourthly, the system has advantages of high reliability, fast response speed, strong anti-interference capability, long service lifetime, low power consumption, and ability of realizing complicated detection.

Description

A kind of automobile parking braking road examination inspection automated decision system and using method thereof

Technical field

The present invention relates to a kind of automotive wheel Displacement test automated decision system, the using method of especially a kind of automobile parking braking road examination inspection automated decision system.

Background technology

National standard 7258-2012 " motor vehicles safe and technical specification " specifies: in the unloaded state, holding brake device should ensure that motor vehicles be 20%(to the motor vehicles of less than 1.2 times that gross mass is kerb weight in the gradient is 15%), positive and negative both direction remains stationary be more than or equal on the ramp of 0.7 for attachment coefficient between tire and road surface, the time should be greater than being equal to 5min. During inspection truck combination, the holding brake device of tractor and trailer should be made to function both on.

When adopting portable motor vehicles parking braking inspection ramp to carry out parking braking inspection, draw car person vehicle sails into Examination region and parks, after reviewer receives instruction, ramp is checked to be individually positioned in each wheel above or below movable type parking braking, draw and after car person receives instruction, vehicle reached each ramp and parks, reviewer in 5 minutes with whether the wheel of eye observation vehicle slips afterwards. Within 5 minutes, observe for a long time, certain visual fatigue can be brought to reviewer, and, likely produce the dispute to assay by the artificial method judging whether wheel slips afterwards.

Summary of the invention

The invention solves the problems that the artificial problem soon of above-mentioned existence, and a kind of automobile parking braking road examination inspection automated decision system is provided, native system selects the main flow device that industrial undertaking uses, by the modules such as single-chip microcomputer (MCU) system, sensor, warning system be built into a kind of removable, flexibly, reliable, low-power consumption, in high precision, the automobile parking braking performance detecting system of fast-response.

For realizing the purpose of the present invention, it is achieved by the following technical solutions:

A kind of automobile parking braking road examination inspection automated decision system, including multiple identical inspection ramps, main corner block and auxiliary that described inspection ramp is formed integrally with one another support concaver, main corner block and auxiliary support concaver and are wherein connected with each other total one side ACHF, this face is provided with AC on one side, main corner block and auxiliary support concaver are interconnected to its bottom surface, a bottom surface to be had while being BD, the outer side bottom surface limit of main corner block is CD, limit AC and limit BD is perpendicular, the upper surface ADEF of main corner block has four limits to be AD respectively, AF, DE and EF and upper surface are rectangle, the upper surface of main corner block is covered with one layer of frictional layer, the outside of frictional layer is covered with the four interconnective protective layers in limit, one of them inspection ramp is provided with inspection and automatic judging device, and is provided with the check valve starting and stopping verifying attachment in inspection ramp, is also equipped with pressure transducer in inspection ramp.

Preferably: described inspection ramp is even numbers and minimum number is 4.

Preferably: the height of the limit AC of described main corner block and the lenth ratio of limit CD are 1:5.

Preferably: the height of the limit AC of described main corner block and the lenth ratio of limit CD are 3:20.

Preferably: described friction layer is the attachment coefficient composite more than or equal to 0.7, the advantage of this composite is that product is through high temperature, the disposable pressing mold molding of high pressure, there are the electrical insulation capability of excellence, heat stability, chemically-resistant anti-corrosive properties, there is good flexural strength, high friction resistance, aging resistance, hardness height, light weight, the advantage such as specious. The chemistry of this composite and physical performance index can meet mobile ramp at loading more than 5 tons and life-time service.

Preferably: the limit AD length of described main corner block is 300mm-900mm, it is 300mm-1000mm that main corner block supports concaver interconnective base BD length with described auxiliary, and the limit DE width of main corner block is 100-800mm.

Preferably: described verifying attachment includes single-chip microcomputer (MCU) processor, signal detection module, signal processing module, sound and light alarm module, supply module and human-machine interface module, signal detection module connects described detection switch, signal detection module transmits signals to signal processing module, signal processing module sends single-chip microcomputer (MCU) processor to, and single-chip microcomputer (MCU) processor connects sound and light alarm module, supply module and human-machine interface module.

2nd purpose of the present invention is to provide the using method of a kind of automobile parking braking road examination inspection automated decision system, and 1) at Examination region, draw the colored lines of a plurality of next-door neighbour, line length along vehicle forward direction both sides13Rice; every lines are wide 20 centimetres, it is ensured that the outermost width of colored lines is not less than 3 meters, and most inboard width is not less than 1 meter; at Examination region along vehicle forward direction front left side and 45 �� of installation cameras of right lateral side or video, on the left of vehicle forward direction, put a convex lens at Examination region;

3) wherein an inspection ramp in front is connected with each other with verifying attachment;

4) after vehicle sails colored lines region into, wheel travels on the colored lines that both sides are identical as far as possible, and after having revised, vehicle stops, and inspection ramp is put into each wheel front, and vehicle reaches inspection ramp;

5) drawing car person during inspection and sail its straight line into Examination region, the driving trace making wheel is parallel with colored Line edge as far as possible. Treat that each wheel of vehicle has been enter into region and parks, receive instruction, movable type parking braking is checked ramp to be individually positioned in face before or after each wheel by reviewer, and make the edge of each ramp and colored lines parallel alignment, draw and after car person receives instruction, vehicle is reached each ramp and parks, checking vehicle parking performance according to pertinent regulations, vehicle is taken pictures or images by camera or video, and transfers data to supervising platform.

6) after being verified, drawing car person and vehicle slowly drives off mobile ramp and parks, after each mobile ramp is removed by reviewer, vehicle rolls Examination region away from.

Preferably described line length 4-15m.

Compared with prior art, the invention has the beneficial effects as follows: 1, electronics automatic checkout system replaces the detection of artificial naked eyes, not only increases accuracy rate, also mitigates labor intensity, embody Vehicle inspection justice, fairness. 2, this detecting device achieves and checks ramp and testing circuit to unite two into one, and detecting device is little, easy for installation, supports direct-connected power supply and rechargeable battery powered, adapts to difference detection environment. 3, native system is easy to use, can move flexibly, assay can pass through scene alarm and radio alarming two ways, two kinds of forms of alarm signal acousto-optic, assay can achieve automatically, and is sent to handheld terminal by wireless signal, signal is directly perceived, reliably, threshold value and detection time can pass through touch screen, and handheld terminal is arranged. 4, native system reliability is high, fast response time, and capacity of resisting disturbance is strong, and long service life, energy consumption is low, it may be achieved complex detection.

Accompanying drawing explanation

Fig. 1 is the structural representation of the embodiment of the present invention;

Fig. 2 is the structural representation of verifying attachment of the present invention;

Fig. 3 be different vehicle in standard parking ramp, the schematic diagram of the test data of mobile ramp and brake test bench;

Fig. 4 be shown little vehicle model in the parking ramp of 20% gradient, the schematic diagram of mobile ramp sliding force contrast test.

Detailed description of the invention

Below according to accompanying drawing, the specific embodiment of the present invention is made a detailed explanation.

A kind of automobile parking braking road examination inspection automated decision system, including multiple identical inspection ramps 1, main corner block 2 and auxiliary that described inspection ramp 1 is formed integrally with one another support concaver 3, main corner block 2 and auxiliary support concaver 3 and are wherein connected with each other total one side ACHF, this face is provided with AC on one side, main corner block and auxiliary support concaver are interconnected to its bottom surface, a bottom surface to be had while being BD, the outer side bottom surface limit of main corner block is CD, limit AC and limit BD is perpendicular, the upper surface ADEF of main corner block has four limits to be AD respectively, AF, DE and EF and upper surface are rectangle, the upper surface of main corner block is covered with one layer of frictional layer 4, the outside of frictional layer 4 is covered with the four interconnective protective layers 5 in limit, one of them inspection ramp 1 is connected to verifying attachment, and in inspection ramp 1, the check valve (not shown) starting and stopping verifying attachment being installed, it is also equipped with pressure transducer (not shown) in inspection ramp 1, check valve and pressure transducer are on the lower surface of inspection ramp, described inspection ramp is even numbers and minimum number is 4, the height of the limit AC of described main corner block 2 and the lenth ratio of limit CD are 1:5, the height of the limit AC of described main corner block 2 and the lenth ratio of limit CD are 3:20, described friction layer is the attachment coefficient composite more than or equal to 0.7, the limit AD length of described main corner block 2 is 300mm-900mm, it is 300mm-1000mm that main corner block 2 supports concaver interconnective base BD length with described auxiliary, the limit DE width of main corner block 2 is 100-800mm, described verifying attachment includes single-chip microcomputer (MCU) processor, signal detection module, signal processing module, sound and light alarm module, supply module and human-machine interface module, signal detection module connects described detection switch, signal detection module transmits signals to signal processing module, signal processing module sends single-chip microcomputer (MCU) processor to, single-chip microcomputer (MCU) processor connects sound and light alarm module, supply module and human-machine interface module.

Inspection using method method: 1) at Examination region; the colored lines of a plurality of next-door neighbour are drawn along vehicle forward direction both sides; line length 11-14m; every lines width 15-30cm; ensure that the outermost width of colored lines is not less than 3 meters; most inboard width is not less than 1 meter, at Examination region along vehicle forward direction front left side and 45 �� of installation cameras of right lateral side or video, puts a convex lens at Examination region on the left of vehicle forward direction;

3) wherein an inspection ramp in front is connected with each other with verifying attachment;

4) vehicle time delay after ramp is parked starts detection after 20 seconds.

5) drawing car person during inspection and sail its straight line into Examination region, the driving trace making wheel is parallel with colored Line edge as far as possible. Treat that each wheel of vehicle has been enter into region and parks, receive instruction, movable type parking braking is checked ramp to be individually positioned in face before or after each wheel by reviewer, and make the edge of each ramp and colored lines parallel alignment, draw and after car person receives instruction, vehicle is reached each ramp and parks, checking vehicle parking performance according to pertinent regulations, vehicle is taken pictures or images by camera or video, and transfers data to supervising platform.

6) after being verified, drawing car person and vehicle slowly drives off mobile ramp and parks, after each mobile ramp is removed by reviewer, vehicle rolls Examination region away from.

In checkout procedure, signal detection module is to place several pressure transducer inside mobile ramp, sensor detect wheel of vehicle do not slip afterwards or after the change that self is under pressure in the moving process that slips, again whether pressure is changed and convert the signal of telecommunication to, through signal processing module, the signal of telecommunication converts digital signal to, it is combined with finite element analysis and the equidistant microwave effect scheduling theory of Kepler, wheel displacement size on domatic is calculated by algorithm routine, realize reporting to the police by warning system after exceeding the threshold value of setting, the processor of single chip computer module of native system, realize the digitized processing of sensor signal and the algorithm function of displacement, and testing result is locally stored, result sends to audible and visual alarm module, or simultaneously by being wirelessly transmitted to handheld terminal or computer, one-chip computer module can integrated signal change-over circuit, ingredient includes low power consumption CPU, storage, power inlet, serial ports, Ethernet interface (wired or wireless), display panel interface etc., convenience and signal processing module, audible and visual alarm module, power module, man-machine interface carries out module docking, wherein human-machine interface module can pass through the amendment of chip microcontroller threshold value and detection time, the signal detection module of native system, realize tire to domatic pressure change-detection, longitudinally uniformly sensor is equidistantly disposed by domatic inside, with realize pressure change change into the signal of telecommunication, the supply module of native system includes two kinds, one is direct-connected power supply, one is that built-in lithium battery is powered, meet daily power reguirements, audible and visual alarm module adopts ripe sound and light alarm device, realize communication by the serial ports of serial ports and single-chip microcomputer to connect, the feeding sound and light alarm device that signals when the displacement that processor of single chip computer detects exceedes the threshold value of setting is reported to the police, human-machine interface module realizes threshold value and sets, detection delay time sets, and detection starts, the controls such as stopping etc. being ordered, human-machine interface module is provided with the setting button of the threshold value of the mobile detection limit of wheel of vehicle, start button, stop button, measure trigger time setting button etc. wherein the setting button of the threshold value of the mobile detection limit of wheel of vehicle can press 0.1CM stepping setting between 3CM-5CM, and measuring trigger time setting button can be set between 1 second to 60 second.

In verifying attachment, monolithic microcomputer kernel panel 1 illustrates: single-chip microcomputer adopts ARM micro-control unit, and central processing unit adopts ARM9 embedded type low-power consumption CPU, dominant frequency 400MHz, inside saves as 64MSDRAM, XIP pattern, user's free memory 57Mbytes storage device; 256MFlash electric board extension storage; SD card stores maximum support and expands to 8G; Power consumption is low to moderate 3.7W (not taking over what peripheral hardware, 12V inputs, and surveys 310mA); Power supply input is the pressure input of DC7.5V-24V width; Interface has 2 tunnel RS-232 interface, 1 road RS-485 interface; The 2 main mouths of road USB, 1 road USB is from mouth; 1 road network interface; There is provided and drive plate and display panel interface, facilitating user to connect; Difference incremental encoder interface is provided; PWM, DAC output interface is provided. System utilizes the powerful control ability of ARM panel, is combined with finite element analysis and the equidistant microwave effect scheduling theory of Kepler, accurately calculates wheel change in location on domatic by program. Signal processing circuit 2 illustrates: signal processing circuit mainly carries out conversion process the signal of telecommunication detected from signal deteching circuit, it is transformed into the treatable signal of arm processor, and the interference of circuit is filtered anti-interference process accordingly, finally send into core control panel and be calculated and process. Signal deteching circuit 3 illustrates: signal deteching circuit adopts pressure transducer, and pressure transducer is placed in the inside on ramp inclined-plane, and vehicle is after ramp inclined-plane is parked, and pressure transducer detects the size variation signal of pressure, judges whether wheel of vehicle has displacement. May be roughly divided into 2 kinds of situations: one is that detection starts rear vehicle continuous displacement, and this situation program judges whether pressure has consecutive variations, is if it is judged as defective. The second is simply to move a segment distance after detection signal is started working, and this situation is also the change being under pressure by pressure transducer, calculates the distance of movement again through algorithm, then with the threshold value set carry out judging whether qualified. Power circuit 4 illustrates: power circuit adopts power supply capacity strong, the lithium battery power supply system that supply voltage is stable, it is ensured that power and reliable power supply during system long.

Sound light alarming circuit 5 illustrates: systems inspection to signal process after compare with the default mobile alarm amount of system again, alarm signal is amplified sending by sound light alarming circuit when needs are reported to the police.

Man-machine interface circuit 6 illustrates: man-machine interface circuit includes input through keyboard and LCD MODULE. By keyboard, the parameter of system can be configured, it is also possible to carry out the amendment of parameter, display, setting by liquid crystal touch screen. Liquid crystal display screen adopts 7, and " TFT TFT True Color LCD (16:9 ratio), resolution 800 �� 480 touch specification: reach more than 1,000,000 times (nib 0.8m keystroke loading 250 gram force, keystroke speed 2 time/second).

Test effect and contrast thereof be: in order to whether proof theory calculates consistent with practice result, on November 28th, 2015, cloudy, and we come Suichang of Zhejiang Province county masses motor vehicles measuring stations company limited again. Before test, we contact with detection systems provider personnel, when determining to test vehicle parking power on brake test bench, the many vehicle of hand brake ratchet wheel lattice number is adopted equipment calibration mode (but computer can not automatic printing report, can only manual record data. ). Therefore, we in standard parking brake inspection ramp, 3 vehicles in use carry out parking braking inspection and compare by brake test bench and mobile ramp. On standard parking brake inspection ramp and mobile ramp, adjust in turn for three times respectively hand brake ratchet wheel lattice number make Zhejiang KF9413 vehicle be in park and after the critical state slipped, on brake test bench (use equipment calibration mode), finally also adjust the identical lattice number of hand brake ratchet wheel respectively for three times in turn test parking braking force data. Zhejiang KF1841 motorbus now drags the end owing to front overhang and rear overhang relatively grow and can not go up standard parking ramp, and we can only test and comparison on mobile ramp and brake test bench. For the artic that Zhejiang KJ1729 and Zhejiang KJ616 semitrailer form, it is contemplated that the distance between axles of semitrailer three axle is not suitable for the spacing of the detection free cylinder of Devices in Workshop, detection of therefore cannot reaching the standard grade. Certainly, owing to standard parking ramp length only has 10 meters, artic length exceedes ramp length, can not reach standard parking ramp, only carries out park test (with reference to Fig. 3) at mobile ramp.

Above-mentioned comparison of test results shows, the hand brake ratchet wheel lattice number corresponding with parking braking critical point when confirming vehicle parks on mobile ramp in standard parking brake inspection ramp is identical, and variation tendency is also basically identical, simultaneously, under vehicle hand brake ratchet wheel lattice number is identical, on brake test bench, the brake force data of the vehicle parking critical point of test also demonstrate above-mentioned conclusion, and the performance of parking brake therefore moving ramp inspection vehicle is reliable. Operation is convenient, and is all very safe to personnel and vehicle.

It is dolly contrast experiment, afternoon on January 7th, 2016, cloudy, we do a little vehicle model certainly, little vehicle model is individually placed on parking ramp and the mobile ramp of 20% gradient, whether accurate measurement dolly sliding force, prove with the parking ramp of 20% gradient identical with mobile ramp inspection vehicle parking performance further by contrast test. The vulcanie wheel of the less rolling frictional resistance of dolly model selection. Strain gauge: Yi Lai section ELK 500 digital display type push-and-pull meter, precision: 0.5%, the scale division value 0.1N of load, result of the test (with reference to Fig. 4).

On November 5th, 2015, we have done load test at information of safety inspection for motor vehicles station, Suichang of Zhejiang Province county, the middle board cement pump truck that kerb weight is 32300kg, are placed on our six mobile ramps. Estimation obtains acting on trailing wheel the weight of each ramp more than 6 tons, it does not have find that ramp has deformation or damages phenomenon.

Use portable parking braking inspection ramp combinatorial test vehicle parking performance, it is feasible in theory, in actual tests process, easy to operate, safe and reliable, it is applicable to go up motor vehicles and multiaxis, long wheelbase vehicle and the three-wheeled motor car etc. of check-out console detection, a kind of new method is provided, it is possible to save the land resource of millions of square metres of high prices and hundreds of millions of construction funds for country and society for improving the motor vehicles parking braking method of inspection.

Claims (9)

1. an automobile parking braking road examination inspection automated decision system, including multiple identical inspection ramps, it is characterized in that, main corner block and auxiliary that described inspection ramp is formed integrally with one another support concaver, main corner block and auxiliary support concaver and are wherein connected with each other total one side ACHF, this face is provided with AC on one side, main corner block and auxiliary support concaver are interconnected to its bottom surface, a bottom surface to be had while being BD, the outer side bottom surface limit of main corner block is CD, limit AC and limit BD is perpendicular, the upper surface ADEF of main corner block has four limits to be AD respectively, AF, DE and EF and upper surface are rectangle, the upper surface of main corner block is covered with one layer of frictional layer, the outside of frictional layer is covered with the four interconnective protective layers in limit, one of them inspection ramp is provided with inspection automatic judging device, and is provided with the check valve starting and stopping verifying attachment in inspection ramp, is also equipped with pressure transducer in inspection ramp.

2. a kind of automobile parking braking road examination inspection automated decision system according to claim 1, it is characterised in that: described inspection ramp is even numbers and minimum number is 4.

3. a kind of automobile parking braking road examination inspection automated decision system according to claim 1, it is characterised in that: the height of the limit AC of described main corner block and the lenth ratio of limit CD are 1:5.

4. a kind of automobile parking braking road examination inspection automated decision system according to claim 1, it is characterised in that: the height of the limit AC of described main corner block and the lenth ratio of limit CD are 3:20.

5. a kind of automobile parking braking road examination inspection automated decision system according to claim 1, it is characterised in that: described friction layer is the attachment coefficient composite more than or equal to 0.7.

6. a kind of automobile parking braking road examination inspection automated decision system according to claim 1, the limit AD length of described main corner block is 300mm-900mm, it is 300mm-1000mm that main corner block supports concaver interconnective base BD length with described auxiliary, and the limit DE width of main corner block is 100-800mm.

7. a kind of automobile parking braking road examination inspection automated decision system according to claim 1, it is characterized in that: described verifying attachment includes single-chip microcomputer (MCU) processor, signal detection module, signal processing module, sound and light alarm module, supply module and human-machine interface module, signal detection module connects described detection switch, signal detection module transmits signals to signal processing module, signal processing module sends single-chip microcomputer (MCU) processor to, and single-chip microcomputer (MCU) processor connects sound and light alarm module, supply module and human-machine interface module.

8. the using method of a kind of automobile parking braking road examination inspection automated decision system according to claim 1-7; it is characterized in that: 1) at Examination region; the colored lines of a plurality of next-door neighbour are drawn along vehicle forward direction both sides; ensure that the outermost width of colored lines is not less than 3 meters; most inboard width is not less than 1 meter; at Examination region along vehicle forward direction front left side and 45 �� of installation cameras of right lateral side or video, on the left of vehicle forward direction, put a convex lens at Examination region;

3) one of them inspection ramp is connected with each other with verifying attachment;

4) vehicle time delay after ramp is parked starts detection after 20 seconds;

5) drawing car person during inspection and sail its straight line into Examination region, the driving trace making wheel is parallel with colored Line edge as far as possible;

Treat that each wheel of vehicle has been enter into region and parks, receive instruction, movable type parking braking is checked ramp to be individually positioned in face before or after each wheel by reviewer, and make the edge of each ramp and colored lines parallel alignment, draw and after car person receives instruction, vehicle is reached each ramp and parks, checking vehicle parking performance according to pertinent regulations, vehicle is taken pictures or images by camera or video, and transfers data to supervising platform;

6) after being verified, drawing car person and vehicle slowly drives off mobile ramp and parks, after each mobile ramp is removed by reviewer, vehicle rolls Examination region away from.

9. the using method of a kind of automobile parking braking road according to claim 8 examination inspection automated decision system, it is characterised in that: the line length of described colored lines4-15m��