【摘要】 为解决混合动力商用车双重热源耦合工况下固定格栅难以动态匹配差异化散热需求的难题，该文以混动轻卡车型为例，采用计算流体力学方法（CFD）探究主动进气格栅（AGS）偏转方向和角度对其气动及热平衡性能的影响，进而提出AGS控制策略。结果表明：AGS全开显著增加冷却组件进气量，改善热平衡性能；AGS叶片下偏较上偏可引导气流至冷却组件，避开复杂底盘零件，在强化换热的同时还能降低前舱风阻；冷却组件进气量受前舱流场结构与AGS偏角的协同影响；在50 km/h爬坡和110 km/h高速工况下将AGS下偏角分别设置为60°和75°，既能满足前舱换热需求，还能分别降低风阻系数约3.21%和3.88%。因此，对混动轻卡车型进行AGS优化匹配设计，并关联AGS控制策略，是改善热平衡与能耗的重要手段。更多还原

【Abstract】 The application of active grille shutter(AGS) technology was investigated to address the challenge of traditional fixed grilles in hybrid commercial vehicles failing to dynamically adapt to differentiated thermal management demands under dual-heat-source coupling conditions. The impact of AGS de-flection orientation and angle on the aerodynamic and thermal balance performance of a hybrid light truck was analyzed using computational fluid dynamics(CFD) simulations. And an optimized AGS control strategy was proposed to enhance heat dissipation efficiency while reducing aerodynamic drag, thereby balancing energy consumption and thermal regulation requirements in complex oper-ating scenarios. The results show that the full operating condition of AGS can significantly increase the air intake of the intercooler and radiator, improving the thermal balance performance. The lower deviation of the AGS blades can guide the airflow to the cooling components, and avoid complex chassis parts, resulting to enhance the heat transfer situation and reduce the drag coefficient by about 2.85%. Under the conditions of 50 km/h climbing and 110 km/h high-speed, setting 60° and 75° grille opening can meet the heat transfer needs of the hair cabin, but also reduce the wind resistance coefficient of about 3.21% and 3.88%, respectively. Therefore, it is an important technical means to improve the thermal balance performance and energy consumption state to carry out the AGS optimal matching design and to associate the AGS control strategy on the hybrid light truck model.更多还原