Abstract: The wheel-end braking system serves as a critical chassis subsystem whose thermal management performance directly governs vehicle handling stability and operational safety. This study implements multidisciplinary co-optimization of wheel-end braking system cooling for the "INNOVATION6" formula society of automotive engineers (FSAE) racing car. Utilizing CATIA for 3D parametric modeling and ANSYS for thermal-fluid coupling simulations, heat dissipation bottlenecks are systematically identified. These analyses are integrated with a VI-Grade-based driver-in-the-loop (DIL) simulation platform to holistically quantify dynamic performance impacts. Post-optimization results confirm a 36% enhancement in heat dissipation efficiency that substantially mitigates brake thermal fade risks, accompanied by a 10% increase in braking efficiency. Closed-loop simulation tests further demonstrate a 3% reduction in lap time. These validated improvements underscore the efficacy of thermal optimization in enhancing wheel-end braking system performance. The proposed methodology provides a robust theoretical foundation and practical design guidelines for developing lightweight, high-efficiency heat dissipation, and reliable design of wheel-end braking systems in FSAE racing applications.

Key words: FSAE racing car; wheel-end braking system; modal analysis; simulation optimization; thermal management

摘要： 轮边制动系统作为赛车底盘的核心系统之一，其热管理性能直接影响整车操纵稳定性 与行驶安全。因此，文章针对某高校车队“INNOVATION6”大学生方程式汽车大赛（FSAE） 赛车，进行轮边制动系统散热优化分析与研究。基于 CATIA 构建三维模型，通过 ANSYS 进 行热-流体耦合仿真，识别散热瓶颈；结合 VI-Grade 搭建驾驶员在环（DIL）仿真平台，量化 轮边制动系统优化对整车动态性能的影响。研究结果表明，优化后轮边制动系统散热效率提 升 36%，显著降低了制动器热衰退风险；制动效率提高 10%；在闭环仿真测试中，单圈成绩 提升 3%，成功验证了热管理优化对赛车轮边制动系统性能的显著增益，为大学生方程式赛车 轮边制动系统的轻量化、高效散热及可靠性设计提供了有效理论依据与工程参考。

关键词: FSAE 赛车；轮边制动系统；模态分析；仿真优化；热管理