This winter in Heihe only gives people a feeling: extreme cold. Covered with ice and snow, the cold wind is biting, and the extreme low temperature has even dropped to -35°C. Even the masks are worn outdoors for a while, because the masks may freeze in a few minutes. However, such an environment is the best place to test whether hydrogen-fueled heavy trucks can start, drive, and endure stably in extremely cold weather. From January 22, 2021, SAIC Hongyan Hydrogen Fuel Heavy Truck and the calibration team of Jie Hydrogen Technology have launched a "battle" in Heihe for more than half a month.

"The Hongyan heavy truck equipped with the PROME P390 fuel cell system successfully completed the calibration of the fuel cell system at -30℃, even in the extreme environment of -35℃. This may be the most abundant vehicle model in China so far. The winter calibration of hydrogen fuel heavy trucks has been carried out.” said the engineer of the fuel cell system development department.

Start at more than minus 30℃

The battery system of SAIC Hongyan's hydrogen-fueled heavy truck has a low temperature cold start technology at -30°C without external heating, which is equivalent to the advanced level of foreign countries. Even in an outdoor low temperature environment of -35°C, it is easy to handle and can easily cope with extreme vehicle extremes. Use requirements in the environment.

"This fuel cell system does not require external heating and can be started at low temperature within 30 seconds. Compared with other hydrogen fuel vehicles on the market that require external heating preparations before starting, the product competitiveness is obvious." After successfully completing all test vehicles After the calibration work, SAIC Hongyan engineers were full of praise for the performance of the fuel cell system at low temperatures.

At the same time, thanks to the strength of independent research and development, the intelligent fuel cell system control algorithm carried by SAIC Hongyan hydrogen fuel heavy trucks can achieve rapid response and precise control. This set of algorithms can further improve and optimize the vehicle's cold start control strategy, and increase the protection of the vehicle's low temperature cold start. The excellent performance and manufacturing process of the stack also further empower the fuel cell system to respond to extremely cold environments.

One of the key advantages of hydrogen fuel heavy trucks as the "ultimate solution for new energy heavy trucks" is that hydrogen energy itself has excellent low temperature resistance, which can avoid battery attenuation and shorter battery life of pure electric power in cold environments And other issues.

At present, SAIC Hongyan's hydrogen-fueled heavy truck has taken the lead in commercial operations in the northern severe cold region. Its unique low temperature adaptability can meet the extreme environment of minus 30 degrees, which is much better than the conventional level of the electric vehicle industry.

This time the winter calibration, the dry goods are full

"The latest time, I was busy until four o'clock in the morning of the next day." During the winter calibration test for more than half a month, the engineers of SAIC Hongyan had a "non-stop" rhythm almost every day.

The PROME P390 fuel cell system, power, power density, and low-temperature start-up of the PROME P390 fuel cell system on SAIC Hongyan's hydrogen-fueled heavy trucks have reached the international first-class level. At the same time, PROME P390 can also achieve -30℃ cold start without external heating source within 30 seconds, which can meet the multi-environment application of vehicles. In addition to strong low temperature resistance, SAIC Hongyan hydrogen fuel heavy trucks also have the characteristics of long battery life, high power, zero emissions, and high safety, which can effectively help customers reduce costs and increase efficiency.

Under the guidance of SAIC's "New Four Modernizations" strategy for commercial vehicles, SAIC Hongyan will continue to make efforts in the field of hydrogen-fueled heavy trucks to help the high-quality development of China's new energy automobile industry. See Editor of Daowang Machinery Column/Ge Siyu