ANNEX VIIIU.K.MEASURES CONCERNING THE ACOUSTIC VEHICLE ALERTING SYSTEM (AVAS)
This Annex sets out measures concerning the Acoustic Vehicle Alerting System (AVAS) for hybrid electric and pure electric vehicles.
AVASU.K.
1.System performanceU.K.
If AVAS is installed on a vehicle, it shall comply with the requirements referred to below.
2.Operation conditionsU.K.
(a)Sound generation methodU.K.
The AVAS shall automatically generate a sound in the minimum range of vehicle speed from start up to approximately 20 km/h and during reversing. Where the vehicle is equipped with an internal combustion engine that is in operation within the vehicle speed range defined above, the AVAS shall not generate a sound.
For vehicles having a reversing sound warning device, it is not necessary for the AVAS to generate a sound whilst reversing.
(b)SwitchU.K.
The AVAS shall be fitted with a switch which is easily accessible by the vehicle driver in order to allow engaging and disengaging. Upon restarting the vehicle, AVAS shall default to the switched on position.
(c)AttenuationU.K.
The AVAS sound level may be attenuated during periods of vehicle operation.