Conquering an altitude of 4,800 meters, Kunlun Mountain Yunne Dewei Guoliu engine plateau test successfully completed

From the zero-elevation of Turpan to the Kunlun Mountain Pass at an altitude of 4,800 meters, from high temperature and hot to cold and low oxygen, the harsh environmental conditions of Kunlun Mountain are a new test for both test vehicles and test engineers. Fortunately, the engineers in the cloud persisted and successfully completed the calibration of the plateau test.

The plateau test of the dynamics in the cloud is generally followed by the summer high temperature test, which takes place in the period of August-September 2018 and lasts for one month. During this period, engineers will perform altitude calibration and testing for vehicle combustion, power performance, component application limits, emissions, and fuel injection systems, intake systems, aftertreatment systems, and OBD monitoring systems.

After the test was completed, all the personnel and vehicles participating in the calibration of the plateau test took a group photo and announced the successful completion of the calibration of the plateau test. Yunde Dewei's six-series engine successfully conquered Kunlun Mountain.

Partial test vehicle family portrait

With the blue sky defense war started, the six-emission regulation standards, known as the "world's most stringent" countries, are approaching. Although the national implementation time of the National Sixth Standard is July 1, 2020, many provinces and municipalities have announced that they will implement the National Sixth Emissions in advance, and officially implement the National Sixth Light Vehicle on July 1, 2019. Emission Standards. This is undoubtedly a huge test and challenge for domestic automakers.

For the cloud power, this is not only a challenge, but an opportunity. As one of the few engine manufacturers in China that can match the emission standards of the national six, Yunne actively promotes the matching of the whole vehicle and stepped up to participate in the “three high calibration”, intending to carry the Yunde Power Dewey together with the OEMs next year. DEV) National Six series products are put on the market and occupy a place in the market.

Test vehicle equipped with the Yunde Power Dewey (DEV) National Six series engine

Following the launch of a variety of models of the DEV's six-series engine in the cloud, after the high temperature calibration test was completed in Turpan in July and August in Turpan in 2018, the engineers of Yunnei Power continued to travel to Kunlun Mountain for Dulwich ( DEV) series of national six-engine engine calibration.

In August 2018, a variety of different brands of models equipped with the DEV six-series engine entered the Kunlun Mountains and went to Hoh Xil, opening a new round of plateau battles, starting from the cold regions above 2800 meters above sea level. Perform plateau test calibration.

The staff is checking the engine operation

The ancients called Kunlun Mountain the "ancestor of the Dragon Vein" of China, with an average elevation of 5,500-6,000 meters. The mountain is thin and the temperature is low. Generally, for every 1000 meters rise, the temperature will drop by 6 degrees, and the climate on the mountain is abnormal. It is no exaggeration to describe the weather changes in Kunlun Mountain by "three days across three seasons and ten different days."

However, such a bad climate not only did not scare the engineers, but also aroused their victorious heart. In order to obtain the test data under the extreme conditions, the engineers continued to face new challenges in the calibration process, and the altitude gradually increased from 2800 meters to 4800. Meter. From sunny days to rain and snow.

In the worst working environment, test vehicles or continuous driving, or uninterrupted test calibration, engineers in the bumpy car, constantly modify the plateau combustion parameters, and repeatedly verify at different altitudes, so that The performance of the engine is optimal at the plateau. Moreover, the cold start of the plateau is more challenging than the cold start of the plain. First of all, it is necessary to constantly adjust the optimization parameters at different altitudes. Secondly, the car needs to be placed on the mountain to be put out for a night, and the calibration test will be conducted the next morning. Despite the adverse conditions such as snow and extreme cold, the vehicle finally completed the cold start test at an altitude of 4,800 meters and zero degrees Celsius, and the start-up time was only 1.5 seconds.

Plateau cold start test

The harsh use environment is a test for the cloud-powered Deva (DEV) national six-series engine, but it is also an indispensable step.

Converting a new product into a product is not easy, it can even be said to be very difficult. Whether the product can be recognized by the user after it is put into the market, it is necessary to constantly improve its own quality before the product is launched, and to pursue the product excellence with a scientific and rigorous attitude and meticulous spirit. In the end, it will be recognized by the market and users.