Core Viewpoint - The study by Geotab indicates that driving speed significantly impacts the range of electric vehicles (EVs) more than high temperatures, especially during long-distance travel [3][4][12]. Group 1: Impact of Speed on EV Range - Geotab's research shows that in the speed range of 50-80 mph (80-128 km/h), the reduction in range can be as high as 39% due to increased air resistance compared to the impact of air conditioning [8][10]. - For a vehicle with a 65 kWh battery, driving at 50 mph (80 km/h) in 86°F (30°C) conditions results in a range of 143 miles (approximately 230 km), which decreases to 88 miles (141 km) at 80 mph (128 km/h) [8][10]. - Aerodynamically efficient electric sedans experience a 28% reduction in range within the same speed range under similar temperature conditions [10]. Group 2: Physics Behind Energy Consumption - The increase in energy consumption at higher speeds is attributed to the square relationship of air resistance to speed, meaning that doubling the speed requires four times the energy to overcome wind resistance [11]. - Geotab's sustainability manager emphasizes that reducing speed by 10-15 mph (16-24 km/h) can extend the range by 20% to 30%, depending on the vehicle type [11]. Group 3: Temperature Effects on EV Range - High temperatures have a more pronounced effect on range at lower speeds, where air resistance is less significant, making the energy consumption of air conditioning more impactful [12]. - At 95°F (35°C), the average range of EVs can decrease by 17% compared to 75°F (24°C) [12]. Group 4: Practical Tips for Extending Range - Geotab suggests several methods to extend range without sacrificing comfort, such as reducing speed, pre-conditioning the vehicle while plugged in, and using air conditioning efficiently [15][16][17]. - Avoiding rapid acceleration and deceleration, parking in shaded areas, and refraining from fast charging in extreme heat can also help maintain battery performance [19][20]. Group 5: Addressing Range Anxiety - The findings aim to alleviate range anxiety among EV users by providing insights into factors affecting range and practical strategies to manage them [22].

设 计 / 琚 佳 来 源 / w w w. c o n s u m e r r e p o r ts. o r g , i n si d e e v s. c o m 即便是最狂热的电动汽车支持者也会告诉你，通常情况下，你所预期的续航里程与电动汽车实际续 航里程之间往往存在很大差距。电动汽车的实际续航里程会受到许多因素的影响，比如外界温度、 轮胎状况、加速的平顺程度以及在公路上的行驶速度等。 许多电动汽车的宣传续航里程与它们在公路长途旅行中实际能行驶的里程之间存在显著差异，正如 《消费者报告（Consumer Reports）》的测试所显示的那样。当以70英里/时（112公里/时）的恒定 速度行驶时，CR测试的一些车辆的实际续航里程比其宣传的续航里程短达50英里（约80公里）， 而另一些车辆则超过了其宣传的EPA预估值——有的甚至超过70英里（112公里）。 "当你远离家乡且没有可靠的充电设施时，续航里程就显得尤为重要。"CR汽车测试开发部门的副 总监亚历克斯·克尼泽克（Alex Knizek）说道。"如果在公路上没电了，你可能就需要被拖走，这既 不方便又成本高昂。" 但与传统汽车和混合动力车的里程估算不同 ...