Good products must be rigorously tested and optimized in order to withstand the test in a complex and changeable operating environment, and the Dayun V9 hydrogen fuel tractor is no exception. The same is true.
From the scientific and rigorous design to the meticulous review, from the ESC system calibration test to the high temperature and high cold calibration test, the Dayun V9 hydrogen fuel tractor has created a product quality that can withstand the test.
The alpine calibration test was jointly carried out by the company and the fuel cell engine manufacturer, and the test site was selected in Zhangjiakou City, Hebei Province, where the winter temperature reached minus 25 °C, mainly for the overall operating performance of the vehicle, the low temperature start and operation status of the fuel cell engine, the low temperature start and temperature rise rate of the power battery and the heating effect of the cab heating system.
At ten o'clock in the evening, the temperature reached minus 20 ° C, and we came to the test site to meet with the calibration engineers of the fuel cell engine manufacturer, ready to communicate and confirm the test content again in the evening. After nearly an hour of discussion, the test content was confirmed, and the temperature was already minus 25 ° C. We immediately set off to begin the calibration test for the evening.
The calibration test lasted about two hours, and due to the need to continuously monitor the outlet air temperature of the heating system, the air conditioner warm air has been running, and the temperature in the cab has reached 30 °C. The calibration engineer of the same company said in his mouth, "In such a cold weather, the temperature in the car can reach such a high level!" This car tested down all aspects of the performance is not bad, the operation is still so stable, this test can be much smoother than the previous test of other manufacturers' cars," said the heavy down jacket off.
After a week of calibration testing, the Dayun V9 hydrogen-fueled tractor successfully withstood the cold of minus 25 °C. During the calibration test, the vehicle was running stably, and the fuel cell engine and power battery operated very well at low temperatures.
"There has never been such a smooth, warm alpine calibration test," exclamated fellow calibration engineers. At this point, the alpine calibration test of the Dayun V9 hydrogen fuel tractor was successfully completed.