en.Wedoany.com Reported - Recently, Weichai Power, as the lead organization, achieved a milestone technological breakthrough in China's first national key R&D project in the hydrogen internal combustion engine field—"Key Technologies for Hybrid-Dedicated Hydrogen Internal Combustion Engines for Heavy-Duty Commercial Vehicles." All test results were jointly verified by test bases in Beijing and Weifang.

Project Background: China's First National-Level R&D Project for Hydrogen Internal Combustion Engines

This project is part of the national "14th Five-Year Plan" New Energy Vehicle key special program and is also China's first national-level scientific research project specifically established for heavy-duty hybrid hydrogen internal combustion engines. Led by Weichai Power as the overall coordinator, the project involves collaborative efforts from four universities—Tsinghua University, Beijing Institute of Technology, Tianjin University, and Shandong University—alongside industry chain enterprises and research institutions such as China Automotive Engineering Research Institute, Sino-Platinum Metals Catalyst, and Sinotruk.

The R&D team focused on common industry technical challenges, conducting tens of thousands of cycle tests across four core directions: efficient and stable combustion, low in-cylinder pollutant emissions, long-life reliability of high-power hydrogen internal combustion engines, and hydrogen-electric hybrid vehicle integration. All preset project assessment indicators were achieved ahead of schedule.

Official Core Performance Data from Authoritative Tests

1. Power Parameters: The prototype delivers a rated power of 580 horsepower and a peak torque of 2750 N·m, suitable for heavy-duty commercial vehicle applications such as long-haul freight and heavy-load mining;

2. Economic Indicator: Maximum brake thermal efficiency reaches 46.8%, the highest publicly disclosed level among similar heavy-duty hydrogen internal combustion engines globally;

3. Dynamic Performance: Transient response speed of the engine is improved by 8% compared to traditional diesel engines, providing smoother power output during heavy-load starts, hill climbs, and overtaking;

4. Emission Advantage: Equipped only with a simplified after-treatment system, it demonstrates the technical potential to meet China's National VII emission regulations, reducing the cost of vehicle exhaust after-treatment systems.

Based on comprehensive performance indicators, industry experts assess that the overall technical level of this engine has entered the global first tier of heavy-duty hydrogen internal combustion engines.

Industry-Academia-Research Collaboration Overcomes Multiple Core Underlying Technologies

Leveraging a multi-site joint test platform, the R&D team achieved independent breakthroughs in several key technologies: efficient lean-burn combustion control, precise hydrogen fuel injection management, in-cylinder nitrogen oxide suppression, and sealing and long-term reliability technologies for high-power hydrogen internal combustion engines. This has established a complete independent development technology system for China's heavy-duty hybrid hydrogen internal combustion engines, filling a gap in China's R&D of high-power, zero-carbon heavy-load powertrains.

Unlike single-enterprise independent R&D models, this project opened up the entire R&D chain from "university theoretical research—component development—engine calibration—vehicle integration," covering full-dimensional technical research on hydrogen internal combustion engines, hydrogen-electric hybrid systems, and vehicle matching, forming a complete independent intellectual property technology reserve.

Mature Foundation for Industrialization in China

Leveraging Weichai's existing hydrogen internal combustion engine product platform, heavy-duty trucks equipped with hydrogen powertrains following the same technical route have been deployed in demonstration operations across multiple regions in China, including Shandong, Shanxi, Inner Mongolia, and Yunnan. These operations cover scenarios such as intercity long-haul logistics, heavy-load mining transportation, and port yard transfer, accumulating extensive real-vehicle operational validation data.

The company has now formed a full-series hydrogen internal combustion engine product matrix ranging from 8L to 15L, adaptable to diverse application scenarios including light trucks, medium and heavy-duty trucks, mining dump trucks, port tractors, and distributed power generation equipment. China's supporting industry chain for hydrogen storage, vehicle integration, and after-sales maintenance has been simultaneously improved.

Industrial Value of Project Implementation

The achievement of this milestone in the national-level project has fully established an independent and controllable technology system for China's heavy-duty hydrogen internal combustion engines, providing a new zero-carbon powertrain solution for deep decarbonization in heavy-load scenarios such as commercial vehicles, mining, and construction machinery.

Furthermore, the high-efficiency hydrogen internal combustion engine R&D data and the complete forward development system accumulated by the project will provide critical support for technology iteration across China's hydrogen industry chain and the formulation of industry standards, contributing to the high-quality and long-term development of China's hydrogen energy industry.

As a national pilot zone for green, low-carbon, and high-quality development, Shandong is accelerating the implementation of a multi-energy complementary new energy system integrating nuclear, wind, solar, hydrogen, and storage. A massive number of new projects and government-enterprise procurement demands are being intensively released. On August 15, the 2026 Shandong Clean Energy Industry Expo will be held at the Yantai Baji Bay International Convention and Exhibition Center, featuring a rare professional platform in northern China showcasing five major energy tracks in one venue, actively seeking investment from enterprises across the national industry chain.

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