Sound generating system for environment friendly vehicle and a method for controlling the system
US9950664B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Jun 29, 2016 |
| Grant date | Apr 24, 2018 |
| Priority date | — |
| Expiry date | Jun 29, 2036 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG10K15/02
- WIPO fieldTransport
- WIPO sectorMechanical engineering
Abstract
An environmentally-friendly vehicle sound generator apparatus. The apparatus includes a vehicle state sensing unit, a sound source storage unit, a sound source playback unit, a sound source amplification unit, a sound output unit, and a control unit. The control unit receives a sensing signal from the vehicle state sensing unit and controlling the operation of the sound source playback unit so as to play back the operating sound in different playback methods to control and change the operating sound according to the received sensing signal. The vehicle state sensing unit senses a vehicle speed, and if it is determined according to a vehicle speed signal that the vehicle speed reaches a preset speed range, the control unit fades out the output of the sound output unit at a preset ratio of the vehicle speed to a time elapsed after the vehicle speed reaches the preset speed range.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.