Wide-Bandwidth Soft Vibrotactile Interface Using Electrohydraulic Actuator for Haptic Steering Wheel Application

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This letter presents a novel soft vibrotactile interface with a wide acceleration bandwidth that can be applied to a curved surface, such as a steering wheel. This haptic interface utilizes the surface charge-inducing characteristic of polyvinyl chloride (PVC) gel and adopts a design where hydraulic pressure is induced upon actuation. This working principle significantly increases the output force of the device, which enables a high-performance haptic interface. In addition, the small contact angle due to its curved shape was analyzed as an important parameter for high-frequency performance. Results showed that the proposed haptic interface can generate sufficient acceleration performance (>3 G) over a broad frequency range (90-700 Hz) with a maximum value near 6 G. Due to this high performance, user test participants could certainly feel the generated vibration with a sensation level of 22.5-44.8 dB from 10-360 Hz at 3 kV.
Publisher
IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC
Issue Date
2021-10
Language
English
Article Type
Article
Citation

IEEE ROBOTICS AND AUTOMATION LETTERS, v.6, no.4, pp.8245 - 8252

ISSN
2377-3766
DOI
10.1109/LRA.2021.3102630
URI
http://hdl.handle.net/10203/287749
Appears in Collection
ME-Journal Papers(저널논문)
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