Simulated sound generator for electric vehicles

Details Simulated sound generator for electric vehicles Simulated sound generator for electric vehicles

1994-12-21

1997-06-03

Crosland, Donnie L.

Communications: electrical

Land vehicle alarms or indicators

Internal alarm or indicator responsive to a condition of the...

340692, 3403841, 3403843, 446397, 381 86, B60Q 100, G08B 300

Patent

active

056359039

ABSTRACT:
Based on detected information from a start sensor, a rotational speed sensor (or a vehicle speed sensor), and an accelerator opening sensor, a simulated sound selector device controls a simulated sound source device to generate a simulated sound signal corresponding to an operating condition of an electric vehicle when it starts, runs and is accelerated or decelerated, and also controls a sound level switcher device to adjust the level of the simulated sound signal. The simulated sound signal which is generated by the simulated sound source device and adjusted in level by the sound level switcher device is amplified by amplifiers, which drive respective loudspeakers to produce simulated sounds. The sound level switcher device is also controlled based on an ambient noise level detected by a noise sensor.

REFERENCES:
patent: 3845572 (1974-11-01), McCanney
patent: 4219962 (1980-09-01), Dankman et al.
patent: 4265047 (1981-05-01), Meyer et al.
patent: 4946416 (1990-08-01), Stern et al.
patent: 5204971 (1993-04-01), Takahashi et al.

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