Masakazu Hirokawa — accepted AI-conference papers

2024

Passive Add-On Mechanism for Electric Wheelchairs to Support Step Climbing Using Rider Motion

Kento Koizumi, Modar Hassan, Masakazu Hirokawa, Kenji Suzuki

RA-L 2024

In this study, we propose a method for electric wheelchairs to climb steps using a passive add-on mechanism. The mechanism utilizes the rider's postural shift motion and canes to enable independent step climbing without the need for caregiver support. In this mechanism, auxiliary wheels are affixed

Cited by 1 Source ↗Scholar ↗

2022

Posture Control of the Passenger Based on Caregiver's Wrist Motion for a Step-Climbing Stroller

Ririka Masuda, Kai Sasaki, Masakazu Hirokawa, Taku Hachisu, Kenji Suzuki

RA-L 2022

This letter proposes a novel manually actuated mechanism to control the position and posture of a passenger for preventing accidents due to stroller tipping while ascending or descending steps. This mechanism is designed as a four-bar linkage, which uses the rotational torque applied to the stroller

Cited by 1 Source ↗Scholar ↗