The vast expanse of the Aksai Desert, the imposing Kunlun Mountains, and the frozen Heihe River are just a few examples of the frontier scenery that young graduating young employee Zhang Weigang once yearned before undergoing the Weichai “three-high” experiment.

Weichai "Three High" Test Series Report: Welcome to Tide

On September 30, the tanned 24-year-old boy, after experiencing high temperatures and high altitude tests, once again talked about Dunhuang and Kunlun Mountains, countless scenery were already being tested behind the water at a temperature of 45 degrees. After drinking, it immediately evaporated, and even a sweat was invisible; each time from Golmud at an altitude of 2,800 meters to the Kunlun Mountain Pass at 4,767 meters, eight hours back and forth, experiencing four seasons of reincarnation, accompanied by the aftershocks of Golmud at any time, driving in a narrow steep On the mountain road, sheltered from the stones that suddenly fell from the mountain, suffered from dust storms, hail, rain and snow at any time of the bad weather, as well as rapid heartbeat, headache, brain, sore, and can not sleep all night, etc. Strong altitude sickness. These hardships left an indelible impression on Zhang Weigang, who first participated in the “three high” experiments of Weichai.

The 150-kilometer section of the Qinghai-Tibet Highway between the Golmud-Kunlun Pass is a must-have for the plateau trials of numerous vehicle and engine manufacturers. With a strong team of vehicle manufacturers including Weichai, Shaanxi Automobile and Beiben, we conducted tests on various engines and vehicles such as WP4, WP5 and WP7. On September 10, the car followed by Zhang Weigang suffered dust storms at the plateau. The visibility was very low. A small stone was added to the middle of the tire while the car was driving. The whole car could not move forward. The stone was tightly clamped and could not be opened for a moment. To avoid breaking the tires, everyone had to adopt the most primitive method, took a small hammer, and several people took turns to take turns. Carefully smashing the stone bit by bit, he had been busy for two hours, and the test vehicle finally drove off the Kunlun Mountains. .

In the three-high test, there are usually some minor problems that are particularly troublesome to solve here. The vast expanse of the desert is boundless. The iron will burn when touched. On the mountain of Kunlun at an altitude of 4,800 meters, the noodles will not cook for half an hour. The engine fan connection flange can be replaced in one hour at ordinary times. 4 Hours to complete; hotel living in Golmud, there was a blackout, and everyone had to carry a computer to climb the stairs, walking legs, like carrying a few dozen kilos of heavy things, climb to the fifth floor is already panting, eat The strength of dinner was gone; Heihe, with a temperature of -40°C, turned into ice. In order to determine the coldest time of the day, the testers usually measure the ambient temperature once every hour at night; during the cold start test, due to the low temperature, long start-up time, frequent start-up times, and low battery loss, the experimenter Every day, many batteries are prepared and transported, recharged and disassembled. It is very hard.

Designer Lu Zhijin, speaking of the hardships of the plateau experiment on the Kunlun Mountains, had a bad memory of the environment. He suffered hail, rain, and snow several times in the experiment. Because the test line connected to the engine was relatively short, he had to open the window. , From here, in this kind of weather, the driver was wet for eight hours.

For Pan Fengwen, who has participated in the “three-high” experiment for three consecutive years, the “three-high” test is an ordeal every year. When the temperature is as high as 55 degrees on the Gobi Desert, the hot sun is used for experiments under the Flaming Mountain. The dazzling and dazzling light that escaped, the bituminous soft shoes on the road, took an egg on it, and it took a while to make an egg cake. In order to block the glare of the sun, some people also bought shade lenses. On the plateau, each time after bathing, the skin will be peeled off, and everyone will try to take a bath as little as possible. Even so, when they come back, they will blistering and even fade away a layer of skin.

Compared with these, the plateau test in the “Three High” experiment was particularly hard. At four or five o'clock in the morning, when the temperature was lowest, I experimented and climbed into the icy cab. Although I didn't wear long shoes for a long time, my feet would be sore, then hemp, and finally it would be Perceived, we can only keep crappy feet; we can't wear gloves when operating notebooks, and everyone's tips are red and painful. At low temperatures, the reliability and stability of many components can be problematic, and often there are unexpected things that can make people unprepared. When a problem arises with the engine, several people take turns in order to set off the cab and live in the laboratory for half an hour, two or three hours in the wild.

In Pan Fengwen’s mind, the most profound impression was the cold-area trial in January 2008. Vehicles were transported from Harbin to Heihe. In the morning, service vehicles could not start normally. In the morning, the engine was leaked by fuel filter. At 9 o'clock in the morning, they drove on the national highway. Clutch booster pump suddenly failed. After the middle of the night, the service car stalled and stalled. It was already 5 am when it arrived in Heihe. The road of more than 500 companies can usually be completed in less than 10 hours. More than 20 hours. In order to find an inflator for draining the gas in the hydraulic circuit behind the clutch booster pump, the service car was looking for a repair site at night on a road full of snow. That night, the field temperature measured during maintenance was -33°C. In less than ten minutes, the cold clothes were freeze-dried. Everyone then took turns holding the flashlight to illuminate, hand tools, and wrenches.

The “three-high” test of the Gobi, the Kunlun, the ice and the snow, and Weichai each year not only test the engine of the vehicle, but also test the personnel who participated in the test. They are not afraid of difficulties, overcome difficulties, and march forward courageously, leaving the footprints of the Weichai people in deserts, mountains, and snow that are rarely found in these deserts. They also write this spirit of fearlessness, selfless dedication, and mesmerizing Weichai forever at the highest temperatures. Dunhuang, the highest elevation of the Kunlun Mountains, and the 40 degree below Heihe.

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