电动汽车在低速时会人为产生噪音,为了让行人能听见,否则太安静,容易被行人忽视。
为了安全。
Electric vehicle warning sounds.
Electric vehicle warning sounds are sounds designed to alert pedestrians to the presence of electric drive vehicles such as hybrid electric vehicles (HEVs), plug-in hybrid electric vehicles (PHEVs), and all-electric vehicles (EVs) travelling at low speeds.