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Robotics · Hardware · 2026

Cars4Mars rover

A 6-wheel rocker-bogie rover built with the DUT SSC Mars Rover Team for the national Cars4Mars competition: terrain-adaptive drive, an 80 m wireless link, and onboard vision for target detection.

Role
Power and electronics, team contributor
Year
2026
Discipline
Robotics, Hardware
Status
Competition platform · next-generation rover in design
Index
03 / 10
6-wheel rocker-bogie chassis with a modular electronics bay and forward camera mast.

6wheels

Independent drive, rocker-bogie link

80m

Wireless control and video range

400pts

Traversal plus autonomy mission total

3classes

Hammer, tennis ball, traffic cone

The platform

The rover is a 6-wheel, independently driven chassis with a rocker-bogie inspired suspension that keeps the wheels loaded across sand, rock and slope transitions. It is built in-house with a modular, repairable layout so a failed module can be swapped between runs rather than ending the day.

It is wirelessly controlled to about 80 m with an onboard camera feed, and runs object detection for the three competition targets: a hammer, a tennis ball and a traffic cone.

Mission profile

  • Launch stage: technical report, video and presentation before the field runs.
  • Mars stage: traversal for 250 points, then autonomous operation for 150 points.
  • Video streaming is scored as infrastructure: losing the feed carries a 60% penalty, so the link budget and encoder settings matter as much as the drive train.
  • Balloon detection and sequential waypoint navigation under competition time pressure.

Electronics and power

The electronics bay carries motor drive, power distribution and the compute module for vision. The design tension is always the same: more compute means more current, and more current means less runtime on a battery pack that has to stay inside the mass budget.

Power distribution is built around replaceable modules with current-limited rails, so a shorted sensor does not take out the drive. Telemetry and video share the wireless link, which is why the video path is treated as a first-class subsystem rather than an accessory.

Next rover

The follow-on design moves from competition prototype to research platform: a larger chassis and payload bay for scientific instruments, AI and SLAM navigation instead of waypoint following, a power system sized for longer missions, and ruggedisation for harsher terrain and greater range.

Figures

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SAST --:--:--v2026.10