Yuchai YCK09LN-200kW Flywheel Range Extender System Cuts Gas Use

Yuchai Completes Model Expansion Filing for New Range Extender System

Guangxi Yuchai Machinery Group Co Ltd (Yuchai Group) announced that a 49-ton FAW Jiefang tractor equipped with the Yuchai YCK09LN-200kW Flywheel Range Extender System has completed the model expansion filing process. The system represents an upgraded version of the YCK08N-170kW flywheel range extender platform, combining a higher-output gas engine with a higher-power flywheel range extender. The filing marks the latest application of Yuchai’s range-extending technology in a heavy-duty tractor configuration intended for demanding commercial transportation operations.

Higher-Output Powertrain Combines Gas Engine and Flywheel Technology

The upgraded system incorporates several major components designed to work together as an integrated range-extending powertrain. According to Guangxi Yuchai Machinery Group Co Ltd, the configuration consists of an efficient motor controller, a dedicated gas engine for range extension, FAW Jiefang dual eAxles, and a 117kWh battery. Compared with the YCK08N-170kW platform, the new system increases both gas-engine output and flywheel range-extender power, providing a higher-output configuration for the 49-ton tractor application.

System Targets Long-Distance Commercial Transportation

The range extender system is designed for resource transportation, logistics, express delivery, and other commercial applications involving transport distances exceeding 500 kilometers. This operating profile places emphasis on maintaining long-distance capability while improving energy consumption. The 117kWh battery works alongside the gas-engine range extender and other powertrain components, while the dual eAxles provide the vehicle propulsion architecture. The configuration is therefore aimed at heavy-duty transportation requirements where extended operating distances are an important consideration for vehicle deployment and fleet utilization.

User Testing Shows Lower Gas Consumption

According to user testing cited by Guangxi Yuchai, the vehicle’s gas consumption can be reduced by up to 31%, while overall gas consumption reduction reaches 15% to 25%. These results indicate the potential efficiency benefit of the upgraded range extender configuration in heavy-duty transportation applications. The reported figures are based on user testing and describe the observed reduction associated with the system rather than a universal result for every operating condition. Actual consumption performance can vary according to vehicle operation, transportation routes, payload, and other application factors.

Frequently Asked Questions

What is the Yuchai YCK09LN-200kW Flywheel Range Extender System?
The Yuchai YCK09LN-200kW Flywheel Range Extender System is an upgraded heavy-duty range-extending powertrain designed for long-distance commercial transportation, combining a higher-output gas engine, higher-power flywheel range extender, motor controller, dual eAxles, and a 117kWh battery. It is intended for applications including resource transportation, logistics, and express delivery where transport distances exceed 500 kilometers. User testing cited by Yuchai indicates that gas consumption can be reduced by up to 31%, with overall reductions reported at 15% to 25% depending on operating conditions.