将火星车驱动转向系统移入机身保温舱，提升极端环境下的可靠性。
The DISTANT Design for Remote Transmission and Steering Systems for Planetary Robotics
- 把电机和转向装置移到车身内受保护区域，避免热循环与尘埃损伤。
- 支持独立轮驱、转向与悬架控制，可实现50公里无性能衰减行驶。
- 适合长周期深空探测任务，尤其适用于高温低温交替的行星表面。
行星探测任务需要能在极端环境下长期运行的可靠移动系统。本文提出一种名为DISTANT（远距离传动与转向系统）的新设计，将火星车的牵引和转向执行器从车轮处移至位于车身内部的温控保护舱中。该设计通过全面权衡分析，采用双横臂悬架搭配万向节和卷扬机驱动转向结构，解决了远距离巡视任务中的关键挑战。系统在保护舱内完成全部电机驱动，实现各轮独立牵引、转向及悬架管理，具备集成防尘机制和热管理方案。设计满足50公里行驶里程要求，且性能不下降。计划于2026年第一季度开展原型机（1:3比例）制造后的测试验证工作。
原文摘要 · Abstract (English)
Planetary exploration missions require robust locomotion systems capable of operating in extreme environments over extended periods. This paper presents the DISTANT (Distant Transmission and Steering Systems) design, a novel approach for relocating rover traction and steering actuators from wheel-mounted positions to a thermally protected warm box within the rover body. The design addresses critical challenges in long-distance traversal missions by protecting sensitive components from thermal cycling, dust contamination, and mechanical wear. A double wishbone suspension configuration with cardan joints and capstan drive steering has been selected as the optimal architecture following comprehensive trade-off analysis. The system enables independent wheel traction, steering control, and suspension management whilst maintaining all motorisation within the protected environment. The design meets a 50 km traverse requirement without performance degradation, with integrated dust protection mechanisms and thermal management solutions. Testing and validation activities are planned for Q1 2026 following breadboard manufacturing at 1:3 scale.
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