Nantong Nantong urea solution where diesel exhaust treatment liquid car without disassembly detection and diagnosis workstation applications in automobile emissions testing of Recognized as one of the most contaminated urban air pollution, vehicle exhaust emission pollution has been well received by the people's attention, How to control the rise in automobile exhaust emission pollution has become a major global environmental issues. Reduce pollution caused by automobile exhaust emissions, in addition to the source of automotive design, manufacturing, production control is started, the more pressing is carried out in car emission pollution monitoring and appropriate treatment. Because the largest and a growing number of emission sources from around the world to run thousands of vehicles every day vehicle. Through the operation of the car exhaust testing and conduct regular maintenance not only make the vehicle scientific save energy and reduce emissions, but also allows the vehicle to run in a more normal and healthy state. But Mihara Technology by car without disassembly detection and diagnosis workstation think as a practical application of diverse, intelligent, automated detection, detection result information and network diagnostic automotive testing equipment can solve the problem in one of the above. Mihara Technology automobile diagnostic workstation is not detected by the engine disintegration comprehensive analysis and detection components; automotive electronic control fault diagnosis system components; vehicle exhaust smoke opacity measurement module and chassis suspension system detects the components of four components, not to the disintegration of the "Diagnostic room "systems integration software as the core. Mihara Technology car without disassembly detection and diagnosis workstation after completing the detection and diagnosis of the vehicle for data collection, processing, analysis and generate reports automatically detect the document, and then connect to the Internet via the multi-information platform uploads the collected data to three of the original technology the car does not disintegration detection and diagnosis information control center, thus achieving with government, business and other multi-party resource online sharing. Resource sharing not only provides a comprehensive, efficient, accurate and effective technical guidance for various models of incurable diseases treatment capacity, but also in the car inspection / maintenance system (I / M system) to monitor and control the formation of emissions a powerful tool. In this paper, the author describes the main use of the device in the use of science and technology Mihara car without disassembly detection and diagnosis workstation car exhaust and smoke opacity measurement assembly process for an automobile engine exhaust emissions were detected and gives the vehicle is not in accordance with the disintegration of detection and diagnosis information control center troubleshooting guide troubleshooting procedures vehicle failure. Detection and diagnosis workstation without disassembly of car exhaust, smoke opacity measurement module as a car without disassembly detection and diagnosis workstation can be an important part of the detection of an automobile engine exhaust emissions in order to make accurate judgments of their working conditions and operating performance, If the car engine can be faulty as a basis for preliminary determining the direction of the fault. It has the following features: 1, car exhaust, smoke opacity measurement module can use spark ignition or compression-ignition engines are two types of auto exhaust testing. Ignition engines for use in automotive exhaust measurements: (1) measuring the concentration of CO, HC, CO2 gas is opaque infrared method, using an electrochemical concentration measurement of O2 and NO gas, the measurement accuracy of the international OIML R990 class standard, fully meet all the requirements of national standard GB18285-2005 for two-speed idle measurements; (2) dual-idling measurement mode with a standard and efficient universal measurement mode, can meet the needs of different occasions measure; and (3) two-speed idle measurement, The new national standard six cars limit index and the measured value with the screen display can be different types of vehicle emissions is excessive direct judgment; (4) the use of the battery charging speed measurement as a reference signal amplitude vibration signal sampling and engine operation can be high accuracy of real-time display of the actual speed of the engine; (5) can be automatically calculated as λ value of gasoline, natural gas, ethanol, liquefied petroleum gas, such as different fuel engine; you can immediately measure (6) after power, warm-up time of less than 60 seconds; (7) automatically calculates the "air dilution ratio" is measured to avoid human transformation of exhaust pipes, air poured into the detection channel, resulting in grossly test results "false qualified" Cheating common; (8) of the exhaust gas measurement instrument treatment or graphing, when the measured value changes can be compared with the normal preliminary judgment of the engine failure; for the use of compression-ignition engine vehicle exhaust measurements: (1) Test operation procedures, according to a new national standard GB3847- 2005 provides that the free-acceleration mode setting program measurement; (2) Split sampling measuring diesel smoke opacity and absorption coefficient of the two indicators; (3) has a free acceleration and instantaneous measurement function, can automatically handle data and display the measurement results; (4) the use of "air curtain" technology to protect the optical system from pollution; (5) the degree of opacity of smoke detection, the chassis dynamometer can load full load smoke test. 2, two measurements have separate detection function, follow the menu prompts, the user can enter the corresponding interface, the data can be detected by the results of both the online sharing. It excludes benefits in a car because of excessive emissions and process to fully feel the results of the test data brought online sharing. A 2009 production of Dongfeng Honda CRV car. Using K20A4 engine displacement of 2.0 l DOHC VTEC electronic control program using sequential multi-point fuel injection engine equipped with catalytic converters. Mileage of 64,320 km. Vehicle to vehicle safety performance test station for routine vehicles examined. Display value exceeded the annual review process when the vehicle exhaust testing. The results of this detection skeptical owners to find the author. I first routine inspection of the vehicles. The car MIL work lamp is lit and extinguished, indicating not set DTC. Normal engine start, during operation under a variety of speed smooth, powerful acceleration, no clear-cut sense, with the naked eye view exhaust situation is no exception. By using the car without disassembly detection and diagnosis of automotive electronic control station fault diagnosis system components during operation of the engine to check the data stream, in addition to the data flow associated with abnormal emissions than the rest of the data flow were normal. So I use the car without disassembly detection and diagnosis workstation exhaust smoke opacity measurement module for vehicle exhaust emissions testing. Screen shots are as follows: According to the owner described, in order to allow vehicles to pass vehicle detection line, had specifically to a 4S shop for vehicle maintenance, and vehicle exhaust emissions were examined when the detected emissions are less than the limit value. But the measured data with the standard limit value by comparing the displayed screen, the car did not pass emissions testing. In order to solve this confusion, then top of the screen according to the service instructions that affect emissions exceeding the system following inspection. 1. Check the spark plug: car. Asked the owner that the spark plug brand and model selection are appropriate to the current use of nearly 20,000 kilometers, it is still within the range of the normal use, and the gap is normal, but slightly due to poor combustion black color slightly (after Use spark plug special cleaning device for cleaning); 2. Check the fuel pressure, the pressure between the 330-380kPa, is normal; 3. Check EVAP emission control system is working properly; 4. Check the three-way catalytic converter (TWC) is not blocked, and the catalytic converter in good condition; 5. Check each cylinder injector, the injector circuit is normal, and the performance checks are normal; 6. Cylinder pressure check of each cylinder, each cylinder pressure values ??are greater than the engine manuals required 930kPa or more and each cylinder cylinder pressure less than 200kPa, normal; 7. Check the toothed belt and the timing valve timing case It was also normal. After a few more excessive pollution emissions related systems checks (test) after we did not find abnormalities. In addition in the end is caused due to a variety of reasons and the vehicle overall "feel" normal while the actual running of "sub-healthy" state? After the disintegration of the author is not detected by auto diagnostic workstation detected data to the control center through its information reporting form, the information control center will soon be uploaded consolidate data combined with the local car without disassembly detection diagnostic workstation It was analyzed after the data collection control center, to the author used car without disassembly detection diagnostic station transmitting the next inspection program. Check the direction of the information given in the control center are: the quality of the fuel currently used vehicles to be checked. Immediately to the owner after the car situation inquiries petrol. Sure enough, the car in the car inspection station arrived a day before a gas station charge plus a 93 # gasoline, was also listen to the station's staff recommended a bottle of a certain brand of fuel additives to him. Retest after because of the limited conditions, no special testing equipment to test the quality of the fuel, it can only fuel emissions clean tank after filling another gas stations 93 # gasoline, and let the engine run for some time. After testing found that, after the replacement of fuel derived data values ??within a defined range. Conclusion Analysis: comparison by replacing the fuel before and after the two test data to prove that emissions of fuel or fuel additive quality exceeding the pollution associated with the use of the car. In this case the fault process, I use the car without disassembly detection and diagnosis workstation exhaust and smoke opacity measurement module for vehicle emissions in real time, fast and accurate detection of the data from the workstation through the intelligent post-test The collation and comprehensive analysis of the author to provide scientific, reasonable troubleshooting recommendations and further help I found the problem quickly and accurately. Fault detection and diagnosis process, the author also based on practical problems encountered in the car does not disintegrate information control center detection diagnostic workstation exclusion method for a variety of failures counseling through the network. The information is collected by the control center of each car from all over the country and the world does not come to the disintegration of detection and diagnosis of a variety of workstation upload statistical information, draw conclusions, give a more accurate troubleshooting advice based on the actual situation rigorous scientific process. All in all, as a comprehensive diagnostic automotive testing equipment, automotive diagnostic workstation can be detected without disassembly of the vehicle to detect and correct a comprehensive analysis of the data, so as to better help control vehicle pollution damage caused to the environment and good help owners and vehicle maintenance technician understand the operation of the vehicle and make timely maintenance and proper maintenance decisions.