Electric vehicles (EVs) are more prone to sliding on slopes and rear-end collisions in snowy conditions compared to internal combustion engine (ICE) vehicles, primarily due to their powertrain design, weight distribution, and regenerative braking systems. First, many EVs use a strong regenerative braking mode or single-pedal driving, which causes rapid deceleration when the accelerator is released. On icy roads, this sudden slowdown can catch following drivers off guard, increasing the risk of rear-end collisions. Second, EVs are generally heavier than comparable ICE vehicles due to their large battery packs. While added weight can improve traction, excessive torque delivered instantly to the drive wheels during acceleration—especially on inclines—can cause wheel spin and slippage, leading to rollback on hills. Additionally, many EVs use front- or rear-wheel drive layouts, which may lose traction more easily on low-grip surfaces. Cold temperatures also harden tire rubber, reducing grip, and the EV’s high instant torque can overwhelm available traction if drivers don’t adjust their habits. To enhance safety in snow, EV drivers should disable aggressive regenerative braking, accelerate and brake gently, and ensure their tires are suitable for winter conditions.
在雪天，电动车相较于燃油车更容易出现溜坡和追尾现象，主要原因与其动力系统、重量分布及能量回收机制有关。首先，电动车普遍采用单踏板模式或强动能回收系统，在冰雪路面上松开电门时会迅速减速，这种突兀的制动力容易导致后车反应不及，从而引发追尾。其次，电动车因搭载大容量电池，整车重量通常比同级别燃油车更重，虽然理论上增加抓地力，但在起步或爬坡时，若驱动轮扭矩输出过大，反而容易打滑，造成溜坡。此外，部分电动车默认使用前驱或后驱布局，在低附着力路面上，驱动轮更容易失去牵引力。最后，冬季低温会降低轮胎橡胶硬度，减少摩擦系数，而电动车瞬时扭矩大，起步迅猛，若驾驶者未及时调整驾驶习惯，就更容易失控。因此，雪天驾驶电动车应关闭强动能回收、采用缓加速缓刹车的方式，并确保轮胎具备良好雪地性能，以提升行车安全。
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