·Car companies should strengthen product consistency and arrange for door warnings

Recently, a news that “Beijing Municipal Environmental Protection Bureau penalized Changan CS75 1.8T and Chang’an Rui’s tail gas emissions exceeded the standard” caused public debate. Does Chang'an deliberately make a fake like a mass discharge door? Is the Changan exhaust emission exceeding the standard a common problem in the industry? Why did Changan, as a central enterprise that established a factory in Beijing, give up its right to justify it?

The author has consulted an engineer who has worked for many years in American car companies and Chinese car companies on technical puzzles. The original words of this engineer to the author are: "Changan has no technical strength and deliberately falsified. As far as Beijing's current emission standards are concerned, there may be problems in the self-owned brands and some foreign-funded brands."

As we all know, Beijing implemented the first, II, III, IV and V emission standards and corresponding oil standards in 1999, 2002, 2005, 2008 and 2013, respectively, all three years ahead of the national. about. At the end of last year, Beijing proposed to take the lead in implementing the VI-level local standards for motor vehicle emissions (hereinafter referred to as Beijing VI) on December 1, 2017. This standard is known as the world's most stringent motor vehicle emission standards and management measures. It is precisely because Beijing is superior to other countries in the country's emission standards, car sales consultants have been using this to fool foreign consumers "to Beijing to buy a better car."
In fact, simply speaking, if a car wants to meet emission standards, it is only necessary to control the cost of the three-way catalyst and the OBD (automobile online diagnostic system). The former belongs to the hardware cost, the enterprise can control; the latter belongs to the software cost, and the Chinese brand enterprise has no ability to control. Most of the Chinese brand car enterprises OBD are purchased from Bosch and provide technical support (the OBD of Changan two models is from Lian Automotive Electronics Co., Ltd. and the German Bosch joint venture offer).

The author noticed that Changan uses EFI data optimization to solve the problem. It can be seen that Changan is not interested in cutting the material on the three-way catalytic converter, so the problem lies in the OBD, especially the OBD system and the engine control system and the transmission control system. Integration. As the engineer said, the independent brand does not have the ability to modify the OBD, so only the product calibration limit is too conservative, coupled with poor product production consistency, resulting in excessive emissions under the special conditions of individual products.

As mentioned by the above engineers, Changan Automobile (microblogging) originally had a leading production and manufacturing strength among its own brands. If Changan would have excessive emissions, the consistency of other independent brand products would be even less flattering.
The CS75 1.8T and Ruiqi vehicles with excessive emissions were produced at the Fangshan plant in Chang'an, Beijing. The reason why Changan, which is a central enterprise and contributes to local taxation, is not justified. The author speculates that this may be a rule, and it is unlucky to catch it. The author noticed that in 2014, the new imported car 3.0L version of the modern imported car was also punished because of excessive emissions. Hyundai Motor did not say anything, and paid a fine. It can be seen that excessive emissions are not patents of Chinese brands, as are imported cars and joint venture cars.

The author thinks that in this incident, Changan Automobile, which is "advancing, closer to you", has the style of a big company. Less than a week after the Beijing Municipal Environmental Protection Bureau issued a notice of punishment, Changan Automobile took out the solution and claimed that 90% of the 2,186 vehicles involved had completed the recall and upgrade work. The company responded quickly and the work was in place. The author remembers that Changan Automobile was involved in the public opinion storm last year because of the “emulsifier turmoil” in 2013. At that time, a team of experts consisting of technology, quality, marketing services and other departments was set up to go to various places to investigate and diagnose, and rushed to “3.15”. "Publish the solution before."

The whole thing, the author of the Beijing Environmental Protection Agency likes, does not smuggle, does not protect the short-term to protect the public interest; Second, the consumer praise, can timely cooperate with the enterprise to upgrade the software, does not blindly defend the rights; the third is the Chinese brand Changan like, Can immediately admit mistakes, promptly explain and remedy the problem, to face up and down.

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