Design and Experimental Verification of a Wheeled Mobile System with a Spring-Based Regenerative Brake
Takahiro Sakuraba, Naoki Uchiyama, Shigenori Sano, and Tatsuhiko Sakaguchi
Toyohashi University of Technology
1-1 Hibarigaoka, Tenpaku-cho, Toyohashi, Aichi 441-8580, Japan
In human-operated mechanical systems such as automobiles, electric bicycles, and electric wheelchairs, energy saving is an important criterion. Hybrid systems consisting of combustion engines and electric motors have found successful applications in automobiles. However, it is difficult to apply this type of hybrid system to personal mobilities and industrial machines in a factory, as there is a requirement to reduce their energy consumption owing to recent environmental and energy resource problems. Therefore, a previous study has focused on the use of a mechanical spring as a regenerative brake in a hybrid bicycle. This study, however, presents a new type of hybrid system that includes the use of a mechanical spring. An experimental wheeled mobile system is designed, and its effectiveness is confirmed through comparative experiments in which a reduction of more than 30% in the consumed energy is achieved in acceleration periods as compared to a conventional system.
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