Recently, the CA6HV3 heavy-duty hydrogen internal combustion engine independently developed by FAW trucks has successfully passed national environmental emission certification tests, making it the industry’s first hydrogen engine featuring dual-zero emissions. It has also completed over 100,000 kilometers of vehicle reliability verification, securing an industry-leading dual milestone of both complete engine environmental certification and full vehicle durability validation. This landmark achievement signals that heavy-duty hydrogen ICE technology has advanced from single certification to a fully commercialized stage balancing both certification and real-condition verification, granting FAW trucks a first-mover advantage in the industrialization of heavy-duty hydrogen internal combustion engines.
The CA6HV3 hydrogen ICE overcomes multiple core technical bottlenecks, including self-developed long-lifespan fuel supply systems and low-cost high-efficiency SCR aftertreatment. Its NOₓ emissions stand at merely 5% of the National VI limit and an estimated 14% of the upcoming National VII limit, truly delivering dual environmental goals: zero carbon emissions and near-zero pollutant emissions.
Highly tailored for market rollout, the engine is fully interchangeable with conventional powertrains and compatible with existing vehicle thermal management architectures without structural modifications. This drastically shortens vehicle adaptation cycles and cuts retrofit costs, paving the way for rapid commercial adoption of hydrogen internal combustion engines.
The FAW Xingyi J6V 49-ton tractor equipped with the CA6HV3 hydrogen ICE has finished 100,000 kilometers of real-scenario testing across diverse operating conditions: long-haul logistics, heavy-load hill climbing, extreme high and low temperatures, and frequent start-stop cycles. The technical route combining hydrogen ICE and high-efficiency SCR aftertreatment has proven exceptional adaptability to complex working conditions, with consistent compliant emissions throughout the full vehicle service life.
FAW trucks has invested years in hydrogen ICE development. In June 2024, it unveiled the Xingyi J6V 49-ton heavy-duty hydrogen tractor in Qingdao, Shandong. In December the same year, the world’s first dedicated production line for hydrogen internal combustion engines went into operation at FAW trucks Dachai Plant, with the first batch of CA6HV3 engines rolling off the line. This established FAW trucks as the industry pioneer with core manufacturing capacity for hydrogen ICE industrialization.
As an industry leader, FAW trucks actively shoulders its guiding responsibilities. It provides abundant real-world vehicle operation data to accelerate the formulation of national vehicle standards, takes concrete actions to speed up the industrialization of hydrogen ICE commercial vehicles, and injects fresh momentum into the high-quality development of China’s automotive sector.
