Beijing raises the bar: weak range extenders won't survive China's new EREV rulebook

Beijing replaces the 2017 framework with measurable performance, durability and EMC requirements for range-extended electric vehicles starting November 2026.

China is tightening the rules for electric vehicles with a range extender — cars where the wheels are driven by an electric motor while the combustion engine works only as a generator. The new industry standard QC/T 1086-2026 is set to take effect in November 2026, replacing the 2017 document.

The key change is a shift from broad wording to concrete, measurable requirements. For systems with a rated power of up to 50 kW, the deviation in generator power control must not exceed ±1.5 kW. For more powerful units, the tolerance is capped at ±3%. The requirements for electromagnetic compatibility, noise and vibration have also been tightened.

A separate block deals with durability. The new checks include a 750-hour variable-load test and 100,000 start-stop cycles. According to the source, such tests are meant to simulate roughly 300,000 km of operation, including urban driving with frequent switching of the petrol generator on and off. The standard also accounts for more modern integrated layouts, in which generator and traction functions are combined within a single transmission system.

For China, this is a logical step: the EREV market is growing rapidly. In 2024, more than 1 million such cars were sold in the country, and in 2025 the figure was expected to exceed 1.2 million. Among the active players are Li Auto, Leapmotor, Deepal, Seres, Zeekr, IM Motors and HIMA. Chinese hybrids with extended range are turning from a temporary compromise into a distinct technological segment with stricter standards.