The "Hard technology" behind Weichai's top production and sales of National VI Engines

"National VI" has been the hottest term in the industry in recent years. On August 17th, industry leader Weichai once again stirred up the National VI emission standards - it made a significant announcement that the production and sales of National VI engines had exceeded 400,000 units.

According to industry statistics, 400,000 units mean that Weichai has firmly held the top position in the sales volume of National VI engines. Get ahead from the start. As early as 2018, Weichai was the first in the industry to pass the official certification of National VI b for heavy-duty diesel engines. In 2021, it obtained the first non-road environmental protection information disclosure form for the fourth stage in China. Meanwhile, Weichai released the world's first commercial diesel engine with a body thermal efficiency exceeding 50%, setting a new benchmark in the global internal combustion engine industry.

400,000 units is not only a breakthrough in figures but also a demonstration of Weichai's technological hard power. Over the past decade or so, Weichai has cumulatively invested more than 30 billion yuan in research and development, comprehensively developing a full range of engines that meet emission standards in all fields. The new light-duty power represented by WP2.3N, WP2.5N, WP3H, WP3N, RA428, and WP4.1N/4.6N The brand-new medium and heavy-duty power systems represented by WP6H/7H, WP8H, WP9/10/10.5H, WP11H, WP12/13G, WP13H and WP15H efficiently meet the diverse power demands of customers and lead the industry's emission upgrade.

A sword is sharpened over ten years; when it is drawn, it will surely have a sharp edge. Weichai's full range of National VI products are positioned at the high end and have achieved a comprehensive upgrade of "more fuel-efficient, stronger power, safer and more reliable, more adaptable, more comfortable and smarter", making them highly competitive in the market. Meanwhile, compared with the National V emission standards, Weichai's National VI engines reduce NOx by 80%, PM by 90%, and CO by 15%.

Decoding "hard technology", fuel efficiency is the top priority. Weichai's National VI engines have set a new benchmark for fuel efficiency with their five major systems: efficient combustion system, low-friction and low-power consumption system, efficient intake and exhaust system, high-efficiency pulse boost system, and low back pressure after-treatment system. Compared with the National V emission standard, it saves 8% of fuel and can save 25,000 yuan in fuel costs annually. For customers, fuel efficiency is the hard truth.

Strong power is also the main advantage of Weichai engines. Weichai's National VI engines have more torque reserves, lower gear shifting frequency, and stronger climbing ability, with a 30% increase in start-up and overtaking acceleration.

In addition to power performance and economy, reliability is also a key concern for customers. Weichai has launched over 100 reliability improvement technologies. 500 complete machines have undergone a total of 450,000 hours of bench durability tests, 3,500 vehicles have undergone 150 million hours of road durability tests, and 320,000 in-use vehicles have accumulated a mileage of 50 billion kilometers... The endurance tests in all fields and at all times have forged the "Great Wall" of Weichai Power's safety and reliability. Meanwhile, the lifespan of the emission system of Weichai's National VI products can reach up to 7 years or 1 million kilometers, and the lifespan of B10 has been increased by 30%.

Weichai engines have endured the scorching heat of 50℃ in Turpan, Xinjiang, withstood the low temperature of -45℃ in Hailar, Inner Mongolia, and climbed the 5,231-meter Kunlun Pass. The rigorous tempering of the "three highs" tests has made Weichai's National VI engines more adaptable.

The "Three Highs Test Team

In the era of National VI standards, customers pay more attention to comfort. Weichai's unique all-suspension vibration isolation technology, multiple injection noise reduction technology, intake pressure stabilization noise reduction technology, low-noise gear train, and speed fluctuation control technology, among other new-generation noise reduction technologies, have reduced the overall machine noise to as low as 72dBA, allowing customers to experience the driving and riding sensation of passenger vehicles. Meanwhile, the in-vehicle intelligent control and cloud service system are interconnected and interoperable, simultaneously achieving energy-saving driving and efficient operation, making the vehicle operation more intelligent and worry-free.

Thanks to a series of "hard technologies", Weichai has outperformed its rivals, and its market has fully exploded, with sales rapidly exceeding 400,000 units. Wang Heng, a tractor driver, is a die-hard fan of Weichai. He started his transportation business over a decade ago using Weichai engines. Half a year ago, he bought a Shaanxi Automobile heavy truck equipped with a Weichai National VI engine. "Its power performance, economy and reliability are not inferior at all. It feels solid to use and is very suitable for short-distance transportation, especially in environments with poor working conditions such as construction sites where it frequently enters and leaves." "

Beijing Doudian Yaohui Automobile Sales Co., Ltd. even purchased multiple tractors equipped with Weichai's National VI engines at one go. Guan Zhen, the person in charge of the company, said, "As a new thing, the National VI products are still in their infancy. However, Weichai's products have performed outstandingly. During the more than two years of market promotion, they have fully withstood the test and are highly favored by customers in industries such as logistics and transportation."