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Battery Development for a Legged Robot in a ZeroG Flight
To advance the field of legged robots in low-gravity space applications, team SpaceHopper (https://spacehopper.ethz.ch/) plans to conduct a testing campaign on a parabolic flight in late 2023. For this test campaign, the robot needs to be equipped with a new battery concept that complies with the safety requirements on a ZeroG flight.
Keywords: legged robotics, batteries, power electronics
SpaceHopper is a three-legged robot designed for low-gravity space exploration. The robot uses its legs to jump and stabilize its attitude during the flight phase. To advance the technology readiness level (TRL) of legged jumping and reorientation in low gravity, we plan on testing these jumping and attitude stabilization capabilities during a parabolic flight. To enable this testing campaign, the robot needs to be equipped with batteries that comply with safety regulations and are easy to handle during testing. This thesis aims to select, test, and integrate a suitable battery setup. Close collaboration with team SpaceHopper and the European Space Agency ensures that the developed battery pack meets all the safety- and plane-integration requirements.
SpaceHopper is a three-legged robot designed for low-gravity space exploration. The robot uses its legs to jump and stabilize its attitude during the flight phase. To advance the technology readiness level (TRL) of legged jumping and reorientation in low gravity, we plan on testing these jumping and attitude stabilization capabilities during a parabolic flight. To enable this testing campaign, the robot needs to be equipped with batteries that comply with safety regulations and are easy to handle during testing. This thesis aims to select, test, and integrate a suitable battery setup. Close collaboration with team SpaceHopper and the European Space Agency ensures that the developed battery pack meets all the safety- and plane-integration requirements.
- Requirement definition
- Battery cell evaluation and selection
- Battery pack integration
- Design of an easy-to-use battery swap mechanism
- Extensive testing
- Requirement definition - Battery cell evaluation and selection - Battery pack integration - Design of an easy-to-use battery swap mechanism - Extensive testing
- Motivated, self-organized student with a problem-solving attitude
- Experience with various battery types
- Good understanding of battery modeling and limitations
- Good understanding of basic power electronic circuits
- Basic knowledge of computer-aided design (CAD)
- Motivated, self-organized student with a problem-solving attitude - Experience with various battery types - Good understanding of battery modeling and limitations - Good understanding of basic power electronic circuits - Basic knowledge of computer-aided design (CAD)
