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<p>In response to the current contradictory situation where aerodynamic braking and lift control systems are studied independently, this paper proposes, for the first time, an integrated intelligent aerodynamic control equipment (IIACE) that combines an aerodynamic braking device (ABD) with an aerodynamic lift wing (ALW) and is compatible with high-speed trains operating at 400 km/h and above. IIACE features an integrated aerodynamic shape that merges aerodynamic braking plates with the lift wing. By leveraging intelligent mechanism transformations and attitude adjustments, the proposed IIACE fulfills the practical requirements for both aerodynamic braking and lift control operations. Research shows that when equipped with IIACE and operating in emergency braking, the braking distance of a high-speed train starting at 350 km/h can be reduced to under 4000 m, demonstrating a remarkably effective braking performance. In lift control mode, the designed minimum traction power for a high-speed train equipped with multiple IIACE units is calculated to be 13935 kW, with the increase of IIACE deployment sets. However, under the same speed conditions, rather than achieving energy savings and consumption reduction, it actually increases the traction burden of the train and decreases both train speed and traction quality under conditions of equal power output performance.</p>

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Integrated synergistic design and performance evaluation of aerodynamic braking and aerodynamic lift control system for high-speed trains

  • 期刊论文

  • 发表日期：

    2026年7月22日

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  • Hong-tai Xie,
  • Hong Wang,
  • Peng Yue

摘要

In response to the current contradictory situation where aerodynamic braking and lift control systems are studied independently, this paper proposes, for the first time, an integrated intelligent aerodynamic control equipment (IIACE) that combines an aerodynamic braking device (ABD) with an aerodynamic lift wing (ALW) and is compatible with high-speed trains operating at 400 km/h and above. IIACE features an integrated aerodynamic shape that merges aerodynamic braking plates with the lift wing. By leveraging intelligent mechanism transformations and attitude adjustments, the proposed IIACE fulfills the practical requirements for both aerodynamic braking and lift control operations. Research shows that when equipped with IIACE and operating in emergency braking, the braking distance of a high-speed train starting at 350 km/h can be reduced to under 4000 m, demonstrating a remarkably effective braking performance. In lift control mode, the designed minimum traction power for a high-speed train equipped with multiple IIACE units is calculated to be 13935 kW, with the increase of IIACE deployment sets. However, under the same speed conditions, rather than achieving energy savings and consumption reduction, it actually increases the traction burden of the train and decreases both train speed and traction quality under conditions of equal power output performance.