Summary
- Automakers have made the electric vehicle driving experience very similar to that of combustion vehicles, with the main difference being stronger deceleration when lifting off the accelerator pedal in an EV.
- EVs with high brake regeneration settings can decelerate so strongly that the brake lights come on when lifting off the accelerator.
- The level of brake regeneration in an EV depends on the type of motor and whether it can decouple its motors from the wheels, with the ability for drivers to adjust the level of regen.
- Newer EV models offer automatic regen settings that adjust based on road conditions, but this feature may lack consistency.
- One-pedal driving, where lifting off the accelerator slows down the vehicle significantly, is useful in certain situations such as stop-and-go traffic, but not all drivers may prefer it.
Article
Automakers have made efforts to make the electric vehicle driving experience similar to a combustion vehicle, with the main difference being what happens when you lift off the accelerator pedal. In an EV, lifting off results in immediate and strong deceleration, much more than in a combustion vehicle. The brake regeneration in an EV allows for driving with just the accelerator pedal, bringing the vehicle to a stop in some cases or requiring the use of friction brakes in others. The level of brake regeneration can be adjusted in EVs, offering flexibility to drivers.
Newer EV models feature automatic regen systems, like the i-Pedal 3.0 in the Kia EV3, which adjust regen levels based on traffic situations and road conditions. While these systems show promise for the future, they are not yet perfect and lack consistency. The Tesla Model 3’s automatic regen system is noted for anticipating the driver’s intentions accurately, making driving in town effortless and intuitive. New EV drivers may need to adapt to keeping the accelerator pedal partially pressed to allow for coasting and manage deceleration when lifting off.
One-pedal driving is most useful in stop-and-go traffic situations, where it feels natural and helps drivers practice brake pedal control. While some drivers prefer one-pedal driving with strong regen for added range and brake longevity, others, particularly manufacturers of sporty cars, may prefer a more traditional driving experience reminiscent of combustion engine vehicles. Adjusting the strength of regen manually or keeping it off entirely are options for drivers to customize their driving experience.
In addition to offering increased range and longer brake lifespan, high levels of regen in an EV allow for the possibility of in-drive brakes in future vehicle designs. Driving an EV down a mountain road demonstrates the added mileage that can be obtained through regen braking, showcasing the efficiency and cost-effectiveness of utilizing this feature. While one-pedal driving may not be suitable for all drivers or vehicle types, it offers a unique and efficient way to control an EV and maximize its capabilities.
Overall, the transition from combustion vehicles to EVs involves adapting to the different deceleration and regen characteristics of electric motors. With advancements in automatic regen systems and one-pedal driving modes, EV manufacturers are providing drivers with more options to customize their driving experience. Whether drivers choose to utilize full regen, coast, or adjust regen levels manually, the benefits of regenerative braking in terms of range, brake longevity, and efficiency are clear. Ultimately, the choice of how to utilize regen in an EV comes down to personal preference and driving habits.
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