Students from Delft University of Technology have unveiled an exoskeleton designed to help individuals with spinal cord injuries stand independently for extended periods, such as during a concert. The prototype was developed by Project MARCH, a multidisciplinary student team that works annually on innovations in exoskeleton technology.
During the unveiling at TivoliVredenburg, the students showcased an exoskeleton featuring several technical improvements. One of the most significant upgrades is an actively powered ankle joint. In addition, the motor controllers were redesigned and the software code optimized to allow stable upright standing without the use of crutches. These enhancements aim to increase user autonomy in social settings.
The exoskeleton uses Model Predictive Control, an algorithmic system that continuously monitors balance via sensors. By processing data from sources such as pressure soles and torque sensors, the system can anticipate external disturbances like a push. A new graphics processor has been integrated to handle this real-time data processing.
For walking, the students developed a so-called gait generator—software that creates walking patterns which automatically adapt to various parameters such as speed, stride length, and swing phase. The hip joints were also redesigned, and the battery capacity was increased by 20%, improving usability during longer activities.
The project aligns with broader efforts to improve accessibility, as outlined in the UN Convention on the Rights of Persons with Disabilities and the European Accessibility Act. These were ratified by the Netherlands in 2016 and 2019, respectively.
Project MARCH consists of 27 TU Delft students who spend a full year working on the design and construction of the exoskeleton. They collaborate closely with experts and partners in the field.
