October 09, 2019. Automotive lighting and electronics specialist Hella has developed an engine-like sound for vehicles without engine sound. The sound allows road users to better hear approaching vehicles and get alerts. HELLA's new acoustic vehicle warning system will be demonstrated for the first time at Busworld (Hall 1, Booth 145), a leading industry exhibition in Brussels, from October 18 to October 23.
Effective July 1, 2019, in order to protect pedestrians, cyclists, and road users with visual impairments, the European Union requires electric, hybrid, and fuel cell vehicles to be equipped with sound signals. Sound makes vehicles that are otherwise quiet recognizable by hearing. The United States and China have similar regulations. HELLA has developed this type of acoustic warning system for passenger cars, commercial vehicles and buses.
When the vehicle speed is lower than 20 km / h, the sound simulated by the acoustic vehicle warning system (AVAS) will increase as the vehicle speed increases. When reversing, AVAS will automatically generate sound signals. When the vehicle speed exceeds 20 km / h and the sound of the tire rolling on the road is loud enough, the simulated engine sound will be muted.
Standard sounds are stored in compact sensors and can be customized to the driving sounds the customer requires.