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Road test engineers eat instant noodles in their own work shed "In the absence of a service station, we can only set up the site by ourselves. In Turpan, which is more than 40 degrees, the computer sometimes can't work..." From the casual words of Luo Wenzheng engineers, you can see the hardship of the whole test work. In the six months period, what are the unknown “three highs†stories of the cold, high temperature and high altitude that they have experienced?
Rest assured story: "Three high" test, safety first
Some of the engineers in this test participated in the “Three Highs†test for the first time, so Cummins paid special attention to the protection of employees. Before the high temperature test, the test team prepared for three months, facing the high temperature of 40 degrees or more, to ensure that the car is ready for cold drinks, to do the cooling work at any time, to prevent heat stroke, the field staff and the test vehicle two The driver should be rotated frequently to avoid long-term high-temperature operation. Under such operation, the temperature of the Turpan is 43-44 degrees in summer and the temperature of the flame mountain is 70 degrees. The entire test team does not have a heatstroke.
In order to cope with the plateau test in the “Three Highsâ€, the service vehicle will pull the staff to the mountain in advance to see if they can adapt to the plateau operation. Once the altitude sickness occurs, they will be arranged to go downhill. The plateau is thin and the medicines, water and food are also available in the service car. Oxygen is also a must, and the hotel where you live can add oxygen to ensure sufficient oxygen. If there is a high-reaction situation in the middle of the road, the test team will take timely measures to protect personnel safety in the first place.
Faced with the cold weather of Heilongjiang below 30 degrees below zero, there is no other way to do the minimum warmth work. Even if many jobs are to be operated outdoors, no one is frostbitten in the whole process.
To force the story: the product is stable enough, the staff is professional enough
In the successive high-cold Heilongjiang, Turpan high temperature, Kunlun mountain high altitude test, PEMS road test, bench test and OBD related test, the stability of Cummins VI products made the whole test process very smooth. Especially in the PEMS road test, Cummins further improved the hardware technology to enhance the stability to ensure that the vehicle's emissions within the effective life cycle are up to standard. In terms of software values, there should be a margin, as low as possible. To leave room for testing and the actual road operation of more vehicles, which requires engineers to follow up tests for dozens of hours to monitor the implementation status.
In order to ensure the smooth test, the road test engineers must always check and repair the vehicle. 
Dealing with so many cables every day, professional engineers can guarantee that one can't be wrong.
In addition to the stability of the product itself, according to Luo Gong, the entire country's six product testing work can be completed so smoothly, the solidarity of all parties is the key. In the absence of a service station, build the site by yourself, and work closely with the service station in the place where there is a service station, and do your utmost to ensure the smooth progress of the test.
On average, the staff involved in the test worked more than 15 hours a day. In order to complete the plan, overtime is a common thing. Tests are conducted during the day, reports are analyzed at night, meetings are held, discussions are made, and the next step is made. At 12 o'clock in the middle of the night, everyone is used to it at 5 o'clock in the morning. As the representative of the only female engineer Peng Mengxi on the team, the first time to participate in the test, from the beginning of the test to the end, one day is not absent.
Peng Mengyu, the only female engineer in the road test team
The story of unity: work together, save the danger
In other words, the "three high" test was originally to test the performance of the product under the three most extreme natural conditions. Therefore, it means that there is a high possibility of risk. However, the test team relies on mutual support and encouragement between the teams, and the engineering team works closely with the joint venture and the OEM to resolve the risk.
Once, the test vehicle could not continue to drive due to the failure in the altitude test. At night, the mountain could not provide rescue and the road was closed. Testers can only be on duty at the high altitude Kunlun Mountains. Because the oxygen is scarce, the temperature difference between day and night is very great, the test team does not dare to sleep, on the one hand to protect the test equipment, on the other hand, to protect themselves against accidents. With everyone's mutual encouragement and support, I finally waited until the next day the rescue team arrived.
In addition, in the test, encountering sandstorms, blizzards are frequent, team members always keep focused. It can be said that the test data collected under some extreme conditions is exchanged by engineers with perseverance.
CES China Engineering Department, one of the participating departments of the road test team, took a group photo
Cummins can become the pioneer of the Sixth product, not only in the development of technology, but also inseparable from the hardships of the testers behind it. The high temperature of 40 degrees, the cold of minus 30 degrees, the high altitude of more than 4,000 meters, and the possibility of facing each Extreme weather and unexpected situations, all of which were overcome by Cummins' test team. Cummins' test report for each category contains their hard work to challenge the limits of the human body, as well as more "three high" stories that are not known to everyone.
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