CN105628093A - System and method of detecting second-hand vehicle - Google Patents
System and method of detecting second-hand vehicle Download PDFInfo
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- CN105628093A CN105628093A CN201510970574.6A CN201510970574A CN105628093A CN 105628093 A CN105628093 A CN 105628093A CN 201510970574 A CN201510970574 A CN 201510970574A CN 105628093 A CN105628093 A CN 105628093A
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Abstract
The invention relates to a second-hand vehicle detection system, which comprises a vehicle body surface paint data analysis module, a vehicle chassis data analysis module, a vehicle computer data analysis module, an engine cylinder pressure data analysis module, an engine cylinder body analysis module, an engine performance analysis module and a comprehensive evaluation module, wherein the vehicle body surface paint data analysis module is used for setting the number of vehicle body surface paint data acquisition surfaces according to a different vehicle type, and each vehicle body surface paint data acquisition surface is provided with five acquisition points; vehicle body surface paint defects are judged according to the vehicle body surface paint data; and the comprehensive evaluation module is used for evaluating the comprehensive state of the vehicle according to the vehicle body surface paint defects, the vehicle chassis deformation state, the working state of each part of the vehicle, the engine cylinder body state and the engine power performance state. As each vehicle body surface paint data acquisition surface is provided with five acquisition points, the overall vehicle body surface paint detection efficiency is greatly improved, and compared with the phenomenon that four acquisition points are arranged for the original vehicle body surface paint detection, the efficiency is improved by about 30%.
Description
Technical field
The present invention relates to used car assessment technology field, particularly a kind of handcart detection system and detection method.
Background technology
Nowadays automobile has become the main traffic instrument that the mankind are indispensable, and the automobile pollution in the whole nation is according to Traffic Administration Bureau of the Ministry of Public Security by 02 04th, 2015 10:26 data announced, and China's vehicle guaranteeding organic quantity reaches 2.64 hundred million. Automobile market new car trading volume and used car trading volume ratio slowly change, 3:1 before become 3:5.
This shows that consumers in general start for used car to accept gradually. It is relatively low that purchase used car advantage for the customer is mainly derived from price, but the doubt existed is maximum is in that vehicle condition, the assessment of existing used car is mostly manual evaluation, namely judges used car vehicle current condition and vehicle present value by artificial subjective concept and experience. On this basis, the adverse consequencess such as " relationship affect value ", " experience influence result " can be caused.
The detection of existing used car vehicle body probably can gather 6 to 7 data points in each data acquisition face, and such data collection point is too much, influences whether the car load detection efficiency of used car.
Summary of the invention
The present invention provides a kind of used car detection system, too much with the data collection point solved on above-mentioned used car detection system single vehicle body data acquisition face, influences whether the technical problem of the car load detection efficiency of used car.
In order to solve above-mentioned technical problem, the present invention provides a kind of used car detection system, including:
Vehicle body lacquer painting data analysis module, for setting the quantity in vehicle body lacquer painting data acquisition face according to different vehicles, described each vehicle body lacquer painting data acquisition face is provided with five collection points of collection; According to described vehicle body lacquer painting data judging body paint planar defect;
Vehicle chassis data analysis module, for the vehicle chassis data of collection vehicle chassis difference segmentation; Judge vehicle chassis deformation condition;
Vehicle computer data analysis module, for the vehicle data stream under collection vehicle different conditions, and judges the duty of vehicle all parts according to described vehicle data stream;
Cylinder pressure of engines data analysis module, data pressed by the cylinder for collection vehicle per cylinder engine, and press data to judge the duty of described vehicle motor according to described cylinder;
Engine cylinder-body analysis module, for analyzing crackle situation and the carbon distribution situation of described engine interior, it is determined that engine cylinder-body situation according to engine cylinder-body internal image;
Engine performance analysis module, for comparing available engine performance parameter with the engine performance parameter that dispatches from the factory of vehicle, it is judged that engine power performance situation;
Comprehensive Assessment module, for according to described body paint planar defect, described vehicle chassis deformation condition, the duty of described vehicle all parts, described engine cylinder-body situation and described engine power performance status assessment vehicle integrated status.
The invention has the beneficial effects as follows: owing to being provided with five collection points of collection in each vehicle body lacquer painting data acquisition face, the efficiency of the vehicle body lacquer painting detection of such car load can be greatly improved, comparing its collection point that the detection of original vehicle body lacquer painting is arranged, efficiency can improve about 30%; Meanwhile, the situation of vehicle chassis is judged by segmentation, it is possible to comparatively rapidly and accurately reflect vehicle chassis situation; By available engine performance parameter is compared with the engine performance parameter that dispatches from the factory of vehicle, it is possible to accurately reflect the service condition of electromotor; Whole used car detection system, will not be introduced the factor thought, be evaluated the final mass situation of used car by final Comprehensive Assessment module.
Further, described used car detection system also includes manual input module, is used for inputting and manually estimates assay, and described artificial range estimation assay sends extremely described Comprehensive Assessment module and is used for evaluating vehicle integrated status.
Adopt above-mentioned further scheme to provide the benefit that: manually input module, artificial Glassless flaw, defect are input in detection system, it is possible to improve integrity and the accuracy of detection system.
Further, described five collection points include four collection points being distributed on four angles, described each vehicle body lacquer painting data acquisition face, and are positioned at a collection point in centre position, described each vehicle body lacquer painting data acquisition face.
Above-mentioned further scheme is adopted to provide the benefit that: the position being easier to be deformed and keep in repair in single vehicle body lacquer painting data acquisition face is normally on the position at four angles in single vehicle body lacquer painting data acquisition face, a collection point is increased again, it can be ensured that accurately measuring and objective evaluation each single vehicle body lacquer painting data acquisition face in the centre position in single vehicle body lacquer painting data acquisition face.
Further, the quantity in described vehicle body lacquer painting data acquisition face is 16 to 20.
Above-mentioned further scheme is adopted to provide the benefit that: different vehicles to set different vehicle body lacquer painting data acquisition face quantity respectively, contributes to accurately measuring the body paint planar condition of different automobile types, it is simple to system evaluation.
Further, described vehicle chassis data analysis module includes vehicle chassis data acquisition unit and vehicle chassis data comparing unit,
Described vehicle chassis data acquisition unit, is used for gathering chassis leading portion front end data, chassis center section front end data, chassis center section Back end data and chassis back segment Back end data;
Described vehicle chassis data comparing unit, for vehicle historical data corresponding with described vehicle chassis position for any one group of vehicle chassis data in described four groups of vehicle chassis data, vehicle production data or vehicle release data are compared, it is determined that described chassis deformation condition.
Above-mentioned further scheme is adopted to provide the benefit that: by gathering chassis leading portion front end data, chassis center section front end data, chassis center section Back end data and chassis back segment Back end data, then it is compared with vehicle historical data, vehicle production data or vehicle release data, it is possible to accurately determine a chassis deformation condition of vehicle.
Further, described vehicle chassis data analysis module includes also including additional measuring unit, for when described chassis center section front end data is defective, increasing additional measurement data at described chassis leading portion and described chassis center section; When described chassis center section Back end data is defective, increase additional measurement data at described chassis center section and described chassis back segment; A particular location for chassis deformation is determined according to described additional measurement data.
Above-mentioned further scheme is adopted to provide the benefit that: can accurately determine a particular location for chassis deformation by the additional measurement data of additional measuring unit, improve the accuracy of system detection.
Further, in described cylinder pressure of engines data analysis module, when the difference between the plurality of cylinder body cylinder pressure value is more than or equal to 1Kpa, described engine cylinder-body situation is defective.
Above-mentioned further scheme is adopted to provide the benefit that: by arranging 1Kpa cylinder pressure difference standard, it is possible to the cylinder body situation of accurate evaluation electromotor.
Further, described carbon distribution situation includes throttle body carbon distribution, valve carbon distribution, inlet manifold deposit and combustion-chamber deposit.
Above-mentioned further scheme is adopted to provide the benefit that: by detecting throttle body carbon distribution, valve carbon distribution, inlet manifold deposit and combustion-chamber deposit, it is possible to accurately reflect the carbon distribution situation of engine cylinder-body, the performance of assessment electromotor.
Further, described engine performance parameter includes maximum drawbar pull, maximum torque point speed, maximum torque point electrical power, torque power percentage ratio.
Above-mentioned further scheme is adopted to provide the benefit that: by detecting the data of maximum drawbar pull, maximum torque point speed, maximum torque point electrical power, torque power percentage ratio, it is possible to precisely judge the performance of electromotor.
The present invention also provides for a kind of used car detection method, comprises the following steps:
Step S1, sets the quantity in vehicle body lacquer painting data acquisition face according to different vehicles, and described each vehicle body lacquer painting data acquisition face is provided with five collection points; According to described vehicle body lacquer painting data judging body paint planar defect;
Step S2, the vehicle chassis data of collection vehicle chassis difference segmentation; Judge vehicle chassis deformation condition;
Step S3, the vehicle data stream under collection vehicle different conditions, and the duty of vehicle all parts is judged according to described vehicle data stream;
Step S4, the cylinder pressure data of collection vehicle per cylinder engine, and press data to judge the duty of described vehicle motor according to described cylinder;
Step S5, analyzes crackle situation and the carbon distribution situation of described engine interior, it is determined that engine cylinder-body situation according to engine cylinder-body internal image;
Step S6, compares available engine performance parameter with the engine performance parameter that dispatches from the factory of vehicle, it is judged that engine power performance situation;
Step S7, according to described body paint planar defect, described vehicle chassis deformation condition, the duty of described vehicle all parts, described engine cylinder-body situation and described engine power performance status assessment vehicle integrated status.
Used car detection method of the present invention provides the benefit that: by being provided with five collection points of collection in each vehicle body lacquer painting data acquisition face, the efficiency of the vehicle body lacquer painting detection of such car load can be greatly improved, comparing its collection point that the detection of original vehicle body lacquer painting is arranged, efficiency can improve about 30%; Meanwhile, the situation of vehicle chassis is judged by segmentation, it is possible to comparatively rapidly and accurately reflect vehicle chassis situation; By available engine performance parameter is compared with the engine performance parameter that dispatches from the factory of vehicle, it is possible to accurately reflect the service condition of electromotor; Whole used car detection system, will not be introduced the factor thought, be evaluated the final mass situation of used car by final Comprehensive Assessment module.
Further, in described step S1, five collection points include four collection points being distributed on four angles, described each vehicle body lacquer painting data acquisition face, and are positioned at a collection point in centre position, described each vehicle body lacquer painting data acquisition face.
Above-mentioned further scheme is adopted to provide the benefit that: the position being easier to be deformed and keep in repair in single vehicle body lacquer painting data acquisition face is normally on the position at four angles in single vehicle body lacquer painting data acquisition face, a collection point is increased again, it can be ensured that accurately measuring and objective evaluation each single vehicle body lacquer painting data acquisition face in the centre position in single vehicle body lacquer painting data acquisition face.
Further, described step S2 specifically includes:
Gather chassis leading portion front end data, chassis center section front end data, chassis center section Back end data and chassis back segment Back end data;
Vehicle historical data corresponding with described vehicle chassis position for any one group of vehicle chassis data in described four groups of vehicle chassis data, vehicle production data or vehicle release data are compared, when difference is more than or equal to setting value, it is determined that described chassis deformation condition;
When described chassis center section front end data is defective, increase additional measurement data at described chassis leading portion and described chassis center section; When described chassis center section Back end data is defective, increase additional measurement data at described chassis center section and described chassis back segment; A particular location for chassis deformation is determined according to described additional measurement data.
Above-mentioned further scheme is adopted to provide the benefit that: by gathering chassis leading portion front end data, chassis center section front end data, chassis center section Back end data and chassis back segment Back end data, then it is compared with vehicle historical data, vehicle production data or vehicle release data, it is possible to accurately determine a chassis deformation condition of vehicle; Can accurately determine a particular location for chassis deformation by the additional measurement data of additional measuring unit, improve the accuracy of system detection.
Accompanying drawing explanation
Fig. 1 is the structured flowchart of used car of the present invention detection system,
Fig. 2 is the flow chart of used car detection method of the present invention,
Fig. 3 is that engine performance analyzes result.
In accompanying drawing, the list of parts representated by each label is as follows:
100, vehicle body lacquer painting data analysis module, 200, vehicle chassis data analysis module, 201, vehicle chassis data acquisition unit, 202, vehicle chassis data comparing unit, 203, additional measuring unit, 300, vehicle computer data analysis module, 400, cylinder pressure of engines data analysis module, 500, engine cylinder-body analysis module, 600, engine performance analysis module, 700, Comprehensive Assessment module, 800, manual input module
Detailed description of the invention
Below in conjunction with drawings and embodiments, the present invention is further illustrated.
The structured flowchart of used car of the present invention detection system is referring to Fig. 1, and used car detects system, it is characterised in that including:
Vehicle body lacquer painting data analysis module 100, for setting the quantity in vehicle body lacquer painting data acquisition face according to different vehicles, each vehicle body lacquer painting data acquisition face is provided with five collection points; According to vehicle body lacquer painting data judging body paint planar defect;
Five collection points include four collection points being distributed on four angles, each vehicle body lacquer painting data acquisition face, and are positioned at a collection point in centre position, each vehicle body lacquer painting data acquisition face. The quantity in vehicle body lacquer painting data acquisition face is 16 to 20
Vehicle chassis data analysis module 200, for the vehicle chassis data of collection vehicle chassis difference segmentation; Judge vehicle chassis deformation condition;
Vehicle chassis data analysis module 200 includes vehicle chassis data acquisition unit 201 and vehicle chassis data comparing unit 202,
Vehicle chassis data acquisition unit 201, is used for gathering chassis leading portion front end data, chassis center section front end data, chassis center section Back end data and chassis back segment Back end data;
Vehicle chassis data comparing unit 202, for comparing vehicle historical data corresponding with vehicle chassis position for any one group of vehicle chassis data in four groups of vehicle chassis data, vehicle production data or vehicle release data, it is determined that a chassis deformation condition.
Vehicle chassis data analysis module 200 includes also including additional measuring unit 203, for when chassis center section front end data is defective, increasing additional measurement data at chassis leading portion and chassis center section; When chassis center section Back end data is defective, increase additional measurement data at chassis center section and chassis back segment; A particular location for chassis deformation is determined according to additional measurement data;
Vehicle computer data analysis module 300, for the vehicle data stream under collection vehicle different conditions, and judges the duty of vehicle all parts according to vehicle data stream;
Cylinder pressure of engines data analysis module 400, data pressed by the cylinder for collection vehicle per cylinder engine, and press data to judge the duty of vehicle motor according to cylinder; In cylinder pressure of engines data analysis module 400, when the difference between multiple cylinder body cylinder pressure values is more than or equal to 1Kpa, engine cylinder-body situation is defective;
Engine cylinder-body analysis module 500, for analyzing crackle situation and the carbon distribution situation of engine interior, it is determined that engine cylinder-body situation according to engine cylinder-body internal image; Carbon distribution situation includes throttle body carbon distribution, valve carbon distribution, inlet manifold deposit and combustion-chamber deposit;
Engine performance analysis module 600, for comparing available engine performance parameter with the engine performance parameter that dispatches from the factory of vehicle, it is judged that engine power performance situation; Engine performance parameter includes maximum drawbar pull, maximum torque point speed, maximum torque point electrical power, torque power percentage ratio;
Manual input module 800, is used for inputting and manually estimates assay;
Comprehensive Assessment module 700, for according to body paint planar defect, vehicle chassis deformation condition, the duty of vehicle all parts, engine cylinder-body situation, engine power performance situation and artificial range estimation assay evaluation vehicle integrated status. Be provided with five collection points of collection in each vehicle body lacquer painting data acquisition face, the efficiency of the vehicle body lacquer painting detection of such car load can be greatly improved, and compares its collection point that the detection of original vehicle body lacquer painting is arranged, and efficiency can improve about 30%; Meanwhile, the situation of vehicle chassis is judged by segmentation, it is possible to comparatively rapidly and accurately reflect vehicle chassis situation; By available engine performance parameter is compared with the engine performance parameter that dispatches from the factory of vehicle, it is possible to accurately reflect the service condition of electromotor; Whole used car detection system, will not be introduced the factor thought, be evaluated the final mass situation of used car by final Comprehensive Assessment module. The position being easier to be deformed and keep in repair in single vehicle body lacquer painting data acquisition face is normally on the position at four angles in single vehicle body lacquer painting data acquisition face, a collection point is increased again, it can be ensured that accurately measuring and objective evaluation each single vehicle body lacquer painting data acquisition face in the centre position in single vehicle body lacquer painting data acquisition face. By gathering chassis leading portion front end data, chassis center section front end data, chassis center section Back end data and chassis back segment Back end data, then it is compared with vehicle historical data, vehicle production data or vehicle release data, it is possible to accurately determine a chassis deformation condition of vehicle. Can accurately determine a particular location for chassis deformation by the additional measurement data of additional measuring unit, improve the accuracy of system detection. By arranging 1Kpa cylinder pressure difference standard, it is possible to the cylinder body situation of accurate evaluation electromotor.
Detection data and the examining report of a specific embodiment of of the present invention used car detection system are presented herein below,
Following table is the essential information of detected vehicle.
| Brand and model | Benz C level | Table shows mileage (km) | 123 |
| Vehicle identification code | XXXXX | Motor Number | XXXXXX |
| Body color | In vain | Character of use | Domestic |
| Send part people's name | Model | The date of production | 2015/10/5 |
Detected vehicle is four, three railway carriage or compartment type of vehicle, adds up to 17 vehicle body lacquer painting data acquisition faces, and accumulative 85 collection points, following table is vehicle body lacquer painting data results.
Detection vehicle chassis leading portion front end data, chassis center section front end data, chassis center section Back end data and chassis back segment Back end data respectively, i.e. test point C, test point B, test point E and test point M, following table is vehicle chassis detection and data results.
Vehicle data stream under collection vehicle different conditions, and the duty of vehicle all parts is judged according to vehicle data stream, following table is vehicle computer data results.
| Detection | State | DTC could be removed |
| Electronic engine management system | Accessible | - |
| Security system electric-control system | Accessible | - |
| ABS anti-lock braking system | Accessible | - |
| Automatic transmission control system | Accessible | - |
| Electronic power assist steering controls system | Accessible | - |
| Electronics VSC | Accessible | - |
The cylinder pressure data of collection vehicle per cylinder engine, and press data to judge the duty of vehicle motor according to cylinder, following table is cylinder pressure of engines data results.
| Machine oil is mixed into without coolant | It is |
| Total testing result pressed by cylinder | Cylinder pressure value finds that cylinder positive pressure is normal after testing |
By peeping image in electromotor, analyzing the crackle situation within motivation and carbon distribution situation, it is determined that engine cylinder-body situation, following table is that engine cylinder-body analyzes result.
Detecting system by wheel rotating with wheel torque and coordinate detection available engine performance parameter, and it compared with the engine performance parameter that dispatches from the factory of vehicle, it is judged that engine power performance situation, Fig. 3 is that engine performance analyzes result.
According to above-mentioned individual event testing result and thermal technology's bore hole visual observation, used car being carried out Comprehensive Assessment, following table is the report of final overall merit.
Used car detection method of the present invention, referring to Fig. 2, comprises the following steps:
Step S1, sets the quantity in vehicle body lacquer painting data acquisition face according to different vehicles, and each vehicle body lacquer painting data acquisition face is provided with five collection points; According to vehicle body lacquer painting data judging body paint planar defect;
Step S2, the vehicle chassis data of collection vehicle chassis difference segmentation; Judge vehicle chassis deformation condition;
Step S3, the vehicle data stream under collection vehicle different conditions, and the duty of vehicle all parts is judged according to vehicle data stream;
Step S4, the cylinder pressure data of collection vehicle per cylinder engine, and press data to judge the duty of vehicle motor according to cylinder;
Step S5, analyzes crackle situation and the carbon distribution situation of engine interior, it is determined that engine cylinder-body situation according to engine cylinder-body internal image;
Step S6, compares available engine performance parameter with the engine performance parameter that dispatches from the factory of vehicle, it is judged that engine power performance situation;
Step S7, according to body paint planar defect, vehicle chassis deformation condition, the duty of vehicle all parts, engine cylinder-body situation and engine power performance status assessment vehicle integrated status.
In step S1, five collection points include four collection points being distributed on four angles, each vehicle body lacquer painting data acquisition face, and are positioned at a collection point in centre position, each vehicle body lacquer painting data acquisition face.
Step S2 specifically includes:
Gather chassis leading portion front end data, chassis center section front end data, chassis center section Back end data and chassis back segment Back end data;
Vehicle historical data corresponding with vehicle chassis position for any one group of vehicle chassis data in four groups of vehicle chassis data, vehicle production data or vehicle release data are compared, when difference is more than or equal to setting value, it is determined that a chassis deformation condition;
When chassis center section front end data is defective, increase additional measurement data at chassis leading portion and chassis center section; When chassis center section Back end data is defective, increase additional measurement data at chassis center section and chassis back segment; A particular location for chassis deformation is determined according to additional measurement data.
By being provided with five collection points of collection in each vehicle body lacquer painting data acquisition face, the efficiency of the vehicle body lacquer painting detection of such car load can be greatly improved, and compares its collection point that the detection of original vehicle body lacquer painting is arranged, and efficiency can improve about 30%; Meanwhile, the situation of vehicle chassis is judged by segmentation, it is possible to comparatively rapidly and accurately reflect vehicle chassis situation; By available engine performance parameter is compared with the engine performance parameter that dispatches from the factory of vehicle, it is possible to accurately reflect the service condition of electromotor; Whole used car detection system, will not be introduced the factor thought, be evaluated the final mass situation of used car by final Comprehensive Assessment module.
In describing the invention, it will be appreciated that, term " " center ", " length ", " width ", " on ", D score, " vertically ", " level ", " top ", " end ", the orientation of the instruction such as " interior " or position relationship be based on orientation shown in the drawings or position relationship; be for only for ease of the description present invention and simplifying and describe; rather than instruction or imply indication device or element must have specific orientation, with specific azimuth configuration and operation, be therefore not considered as limiting the invention.
In the present invention, unless otherwise clearly defined and limited, the term such as term " installation ", " being connected ", " connection ", " fixing " should be interpreted broadly, for instance, it is possible to it is fixing connection, it is also possible to be removably connect, or integral; Can be joined directly together, it is also possible to be indirectly connected to by intermediary, it is possible to be connection or the interaction relationship of two elements of two element internals. For the ordinary skill in the art, it is possible to understand above-mentioned term concrete meaning in the present invention as the case may be.
In the present invention, unless otherwise clearly defined and limited, fisrt feature second feature it " on " or D score can include the first and second features and directly contact, it is also possible to include the first and second features and be not directly contact but by the other characterisation contact between them. And, fisrt feature second feature " on ", " top " and " above " include fisrt feature directly over second feature and oblique upper, or be merely representative of fisrt feature level height higher than second feature. Fisrt feature second feature " under ", " lower section " and " below " include fisrt feature immediately below second feature and obliquely downward, or be merely representative of fisrt feature level height less than second feature.
Above the used car of the present invention being detected system and detection method is described in detail, principles of the invention and embodiment are set forth by specific case used herein. The explanation of above example is only intended to help to understand the core concept of the present invention; Simultaneously for one of ordinary skill in the art, according to the thought of the present invention, all will change in specific embodiments and applications, in sum, this specification content should not be construed as limitation of the present invention.
Claims (12)
1. a used car detection system, it is characterised in that including:
Vehicle body lacquer painting data analysis module (100), for setting the quantity in vehicle body lacquer painting data acquisition face according to different vehicles, described each vehicle body lacquer painting data acquisition face is provided with five collection points; According to described vehicle body lacquer painting data judging body paint planar defect;
Vehicle chassis data analysis module (200), for the vehicle chassis data of collection vehicle chassis difference segmentation; Judge vehicle chassis deformation condition;
Vehicle computer data analysis module (300), for the vehicle data stream under collection vehicle different conditions, and judges the duty of vehicle all parts according to described vehicle data stream;
Cylinder pressure of engines data analysis module (400), data pressed by the cylinder for collection vehicle per cylinder engine, and press data to judge the duty of described vehicle motor according to described cylinder;
Engine cylinder-body analysis module (500), for analyzing crackle situation and the carbon distribution situation of described engine interior, it is determined that engine cylinder-body situation according to engine cylinder-body internal image;
Engine performance analysis module (600), for comparing available engine performance parameter with the engine performance parameter that dispatches from the factory of vehicle, it is judged that engine power performance situation;
Comprehensive Assessment module (700), for according to described body paint planar defect, described vehicle chassis deformation condition, the duty of described vehicle all parts, described engine cylinder-body situation and described engine power performance status assessment vehicle integrated status.
2. used car according to claim 1 detection system, it is characterized in that, described used car detection system also includes manual input module (800), manually estimating assay for inputting, described artificial range estimation assay sends extremely described Comprehensive Assessment module (700) and is used for evaluating vehicle integrated status.
3. used car according to claim 1 and 2 detection system, it is characterized in that, described five collection points include four collection points being distributed on four angles, described each vehicle body lacquer painting data acquisition face, and are positioned at a collection point in centre position, described each vehicle body lacquer painting data acquisition face.
4. used car according to claim 1 and 2 detection system, it is characterised in that the quantity in described vehicle body lacquer painting data acquisition face is 16 to 20.
5. used car according to claim 1 and 2 detection system, it is characterized in that, described vehicle chassis data analysis module (200) includes vehicle chassis data acquisition unit (201) and vehicle chassis data comparing unit (202)
Described vehicle chassis data acquisition unit (201), is used for gathering chassis leading portion front end data, chassis center section front end data, chassis center section Back end data and chassis back segment Back end data;
Described vehicle chassis data comparing unit (202), for vehicle historical data corresponding with described vehicle chassis position for any one group of vehicle chassis data in described four groups of vehicle chassis data, vehicle production data or vehicle release data are compared, it is determined that described chassis deformation condition.
6. used car according to claim 5 detection system, it is characterized in that, described vehicle chassis data analysis module (200) includes also including additional measuring unit (203), for when described chassis center section front end data is defective, increasing additional measurement data at described chassis leading portion and described chassis center section; When described chassis center section Back end data is defective, increase additional measurement data at described chassis center section and described chassis back segment; A particular location for chassis deformation is determined according to described additional measurement data.
7. used car according to claim 1 and 2 detection system, it is characterized in that, in described cylinder pressure of engines data analysis module (400), when the difference between the plurality of cylinder body cylinder pressure value is more than or equal to 1Kpa, described engine cylinder-body situation is defective.
8. used car according to claim 1 and 2 detection system, it is characterised in that described carbon distribution situation includes throttle body carbon distribution, valve carbon distribution, inlet manifold deposit and combustion-chamber deposit.
9. used car according to claim 1 and 2 detection system, it is characterised in that described engine performance parameter includes maximum drawbar pull, maximum torque point speed, maximum torque point electrical power, torque power percentage ratio.
10. the used car detection method adopting the arbitrary used car detection system of claim 1 to 9, it is characterised in that comprise the following steps:
Step S1, sets the quantity in vehicle body lacquer painting data acquisition face according to different vehicles, and described each vehicle body lacquer painting data acquisition face is provided with five collection points; According to described vehicle body lacquer painting data judging body paint planar defect;
Step S2, the vehicle chassis data of collection vehicle chassis difference segmentation; Judge vehicle chassis deformation condition;
Step S3, the vehicle data stream under collection vehicle different conditions, and the duty of vehicle all parts is judged according to described vehicle data stream;
Step S4, the cylinder pressure data of collection vehicle per cylinder engine, and press data to judge the duty of described vehicle motor according to described cylinder;
Step S5, analyzes crackle situation and the carbon distribution situation of described engine interior, it is determined that engine cylinder-body situation according to engine cylinder-body internal image;
Step S6, compares available engine performance parameter with the engine performance parameter that dispatches from the factory of vehicle, it is judged that engine power performance situation;
Step S7, according to described body paint planar defect, described vehicle chassis deformation condition, the duty of described vehicle all parts, described engine cylinder-body situation and described engine power performance status assessment vehicle integrated status.
11. used car detection method according to claim 10, it is characterized in that, in described step S1, five collection points include four collection points being distributed on four angles, described each vehicle body lacquer painting data acquisition face, and are positioned at a collection point in centre position, described each vehicle body lacquer painting data acquisition face.
12. the used car detection method according to claim 10 or 11, it is characterised in that described step S2 specifically includes:
Gather chassis leading portion front end data, chassis center section front end data, chassis center section Back end data and chassis back segment Back end data;
Vehicle historical data corresponding with described vehicle chassis position for any one group of vehicle chassis data in described four groups of vehicle chassis data, vehicle production data or vehicle release data are compared, when difference is more than or equal to setting value, it is determined that described chassis deformation condition;
When described chassis center section front end data is defective, increase additional measurement data at described chassis leading portion and described chassis center section; When described chassis center section Back end data is defective, increase additional measurement data at described chassis center section and described chassis back segment; A particular location for chassis deformation is determined according to described additional measurement data.
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN109084998A (en) * | 2018-09-18 | 2018-12-25 | 深圳易嘉恩科技有限公司 | Vehicle safety automatic checkout system and method |
| CN109470487A (en) * | 2017-09-08 | 2019-03-15 | 邹强 | SUC performance detecting system and its method |
| CN109632341A (en) * | 2019-01-23 | 2019-04-16 | 中永（苏州）信息技术有限公司 | A method of suitable for detecting, analyzing used car performance |
| CN109883725A (en) * | 2019-01-23 | 2019-06-14 | 中永（苏州）信息技术有限公司 | A kind of detection of used car, evaluation analysis and residual value assessment system |
| CN110108245A (en) * | 2019-05-22 | 2019-08-09 | 优信拍（北京）信息科技有限公司 | Detection method, device and the equipment of vehicle lacquer painting situation |
| CN115496440A (en) * | 2022-09-15 | 2022-12-20 | 广东数鼎科技有限公司 | Method and device for determining second-hand car inventory |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN109470487A (en) * | 2017-09-08 | 2019-03-15 | 邹强 | SUC performance detecting system and its method |
| CN109084998A (en) * | 2018-09-18 | 2018-12-25 | 深圳易嘉恩科技有限公司 | Vehicle safety automatic checkout system and method |
| CN109632341A (en) * | 2019-01-23 | 2019-04-16 | 中永（苏州）信息技术有限公司 | A method of suitable for detecting, analyzing used car performance |
| CN109883725A (en) * | 2019-01-23 | 2019-06-14 | 中永（苏州）信息技术有限公司 | A kind of detection of used car, evaluation analysis and residual value assessment system |
| CN110108245A (en) * | 2019-05-22 | 2019-08-09 | 优信拍（北京）信息科技有限公司 | Detection method, device and the equipment of vehicle lacquer painting situation |
| CN110108245B (en) * | 2019-05-22 | 2021-04-13 | 优信拍（北京）信息科技有限公司 | Method, device and equipment for detecting vehicle paint surface condition |
| CN115496440A (en) * | 2022-09-15 | 2022-12-20 | 广东数鼎科技有限公司 | Method and device for determining second-hand car inventory |
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