Global Vehicle Vibration Enhancement Using Circular Force Technology

2025-01-0015

05/05/2023

Event
Noise & Vibration Conference & Exhibition
Authors Abstract
Content
In addition to safety advantages, sound and vibration are being utilized to enhance the driver experience in Electric Vehicles (EVs). Significant interest and investment continue to grow in utilizing interior and exterior sound for pedestrian safety and driver awareness of vehicle state, as well as enabling a unique personal EV audio experience for brand recognition both inside and external to the vehicle. Several automakers are also using audio to simulate virtual gear shifting and as well as manual transmissions in EVs. According to several automotive industry articles and market research, the audio enhancements alone, without the vibration that drivers are accustomed to in combustion engine vehicles, are not sufficient to meet the engagement, excitement, and emotion that driving enthusiasts expect. In this paper, we introduce the use of new automotive high-force compact light-weight circular force generators for globally shaking vehicles. The technology was developed originally for use in aerospace applications, has been recently tested in various vehicles, and demonstrates the effectiveness for providing a real haptic feel in the entire vehicle. Shaking the vehicle globally provides a unique capability for EVs, as well as including Hybrid EVs (smooth transition between Gas and Electric, for example). The technology can be used to generate and emulate high-performance, high power, combustion engine feel, including idle, engine run-up/acceleration, simulated gear shifts, and ADAS haptic indicators. The optional and customizable vibration can also mask road vibration which becomes very noticeable in otherwise smooth EVs. The technology coupled with acoustic enhancement provides an extremely unique sound and feel both inside and outside the vehicle. It is the perfect supplement to those existing audio and gear shifting features. This paper will introduce the technology and describe how the force generating device can be packaged in a light-weight, compact, low-power manner. The technology will be compared to other force generating technology and discusses the advantages and disadvantages of the technology relative to other methods.
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Citation
Norris, M., Orzechowski, J., Sanderson, B., Swanson, D. et al., "Global Vehicle Vibration Enhancement Using Circular Force Technology," SAE Technical Paper 2025-01-0015, 2023, .
Additional Details
Publisher
Published
May 5, 2023
Product Code
2025-01-0015
Content Type
Technical Paper
Language
English