Zhong Guo Qi Che Bao Wang·2025-11-26 09:33Core Insights - Dongfeng Motor Corporation's "Key Technologies for Energy Saving and Emission Reduction in Complete Vehicles" project has been recognized as "internationally advanced" by a panel of eight experts at a recent technical appraisal meeting in Wuhan [1][3]. Group 1: Engine Technology - The M9T hybrid engine, with a displacement of 2.3 liters, has improved its effective thermal efficiency from 41.3% to 46.2%, addressing a core challenge in the new diesel engine technology iteration [3]. - The M9T engine is designed to reduce fuel consumption by 20%-30% per 100 kilometers when integrated into vehicles [4]. Group 2: Transmission Efficiency - The planetary gear coupling assembly, developed independently by Dongfeng, achieves a transmission efficiency of 91.22%, significantly reducing transmission losses and placing it at an internationally advanced level [4]. - The integration of this assembly is expected to lower fuel consumption by 2% per 100 kilometers and enhance vehicle range by 1% [4]. Group 3: Vehicle Control Innovations - The 4.5T hybrid light truck features innovative fuel consumption simulation and real vehicle energy flow testing, achieving a fuel consumption rate as low as 6.8L/100km under CHTC-LT conditions [4]. - This development provides an efficient solution for the integration of hybrid systems in the light commercial vehicle sector [4]. Group 4: Production and Future Plans - The first hybrid light truck equipped with the M9T engine and planetary gear coupling assembly has successfully rolled off the production line at Dongfeng's Xiangyang factory, with plans to achieve mass production of 500 units by the end of 2025 [7]. - Dongfeng aims to enhance its R&D investment to support energy-saving and carbon reduction initiatives, contributing to the green transformation of the industry [7].