Research on intelligent control strategy of active grille shutters of hybrid vehicle based on low energy consumption

IF 6.6 2区工程技术 Q1 THERMODYNAMICS

Case Studies in Thermal Engineering Pub Date : 2026-04-07 DOI:10.1016/j.csite.2026.108026

Yingchao Zhang, Ruizhuo Zhou, Guohua Wang, Mingzhe Liu, Xiaowen Zang, Zhe Zhang

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引用次数: 0

Abstract

How to coordinate the heat dissipation and heating requirements of each subsystem of the thermal management system and its components is an important research direction of the hybrid electric vehicle. Active Grille Shutters (AGS) can reduce the internal flow resistance, balance the heat dissipation requirements of thermal management system and reduce the wind resistance to reduce fuel consumption, and has become an important component of vehicle thermal management system (TMS). Although AGS control strategies have been applied in the automotive industry, there is still a lack of mature and comprehensive control solutions for energy efficiency optimization. In this paper, three-dimensional Computational Fluid Dynamics (CFD) simulation software STAR-CCM+ is used to establish a three-dimensional vehicle model and analyze the changes of the flow field in the engine compartment under the steady-state condition of full open and full closed active grille. Then, a one-dimensional engine compartment model is introduced into the vehicle TMS of GT-SUITE, and a new AGS opening control strategy considering the coupling of aerodynamic and thermal management is proposed for low SOC initial value. The results show that when the initial SOC values are 0.2 and 0.3, the average resistance coefficient of the AGS control strategy is significantly lower than that without active grid, and the fuel consumption can be reduced by 0.65% and 0.89%, respectively.

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基于低能耗的混合动力汽车主动格栅百叶窗智能控制策略研究

如何协调热管理系统各分系统及其部件的散热和制热要求是混合动力汽车的一个重要研究方向。主动格栅百叶窗（AGS）可以降低内部流动阻力，平衡热管理系统的散热要求，降低风阻以降低油耗，已成为汽车热管理系统（TMS）的重要组成部分。虽然AGS控制策略已经在汽车行业得到应用，但目前还缺乏成熟、全面的能效优化控制解决方案。本文利用三维计算流体动力学（CFD）仿真软件STAR-CCM+建立三维车辆模型，分析了主动格栅全开和全闭稳态条件下发动机舱内流场的变化。然后，将一维发动机舱模型引入到GT-SUITE车辆TMS中，针对低SOC初始值，提出了一种考虑气动与热管理耦合的AGS开口控制策略。结果表明，当初始荷电状态为0.2和0.3时，AGS控制策略的平均阻力系数显著低于无主动电网时，油耗分别降低0.65%和0.89%。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Case Studies in Thermal Engineering Chemical Engineering-Fluid Flow and Transfer Processes

CiteScore

8.60

自引率

11.80%

发文量

812

审稿时长

76 days

期刊介绍： Case Studies in Thermal Engineering provides a forum for the rapid publication of short, structured Case Studies in Thermal Engineering and related Short Communications. It provides an essential compendium of case studies for researchers and practitioners in the field of thermal engineering and others who are interested in aspects of thermal engineering cases that could affect other engineering processes. The journal not only publishes new and novel case studies, but also provides a forum for the publication of high quality descriptions of classic thermal engineering problems. The scope of the journal includes case studies of thermal engineering problems in components, devices and systems using existing experimental and numerical techniques in the areas of mechanical, aerospace, chemical, medical, thermal management for electronics, heat exchangers, regeneration, solar thermal energy, thermal storage, building energy conservation, and power generation. Case studies of thermal problems in other areas will also be considered.