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"One-Pedal Driving" the Taycan

3731 Views 1 Reply 2 Participants Last post by  Smitty11
Like most electric car owners, "one-pedal driving" the Taycan will become a large part of our ownership experience. AutoMag got behind the wheel of Taycan Cross Turismo and were one of the first to not only share what this experience is like, but compare it to the Audi e-Tron SUV and Mercedes EQC. These are details we should pay close attention to considering what Porsche offers is unique in its own way and will get a different mix of reactions. So far I like what i'm reading in first drives.
  • "The heralded “one-pedal driving,” where you can lift off the accelerator and the regenerative function will slow the car, is one of the main attractions of driving an electric vehicle, right? In the EQC, the higher of two regeneration settings delivers substantial lift-off deceleration with no need to brake until you almost hit the stop light. The Porsche, on the other hand, offers three different behaviors in response to the driver feathering the throttle. In nine out of ten situations it will coast, because forward motion is what customers expect from a sports car. When the driver pulls the paddle though, lift-off regen will set in, eventually blending its effort with the stopping power of the brakes. Last but not least, there is an auto-recuperation mode, which is governed by the distance to the car ahead. Like the Cross Turismo, the e-tron collects electric and hydraulically generated energy under braking."
Then another automotive publication drove the Taycan "sedan," providing similar feedback and perspective of "one-pedal driving" from other car makers:
  • "Lift off the throttle in many a modern EV and you'll experience a rather dramatic deceleration effect, a conversion of the car's momentum into electricity by engaging the electric motor or motors. Most EVs allow you to tune this effect to some degree, with Nissan's latest Leaf and its E-Pedal offering the most dramatic regen, able to bring the car to a complete stop and hold it there. After a little practice in a Leaf, you can almost entirely forgo the brake pedal.
    For Taycan, Porsche went a different way. In the default mode, when you lift off the throttle the car doesn't drag you to a halt. Instead, it just coasts along. "Coasting is the most energy-efficient way to do it, because braking always goes along with a loss of energy, because no engine has a 100 percent ratio," Propfe said. "We strongly believe that the customer, if he wants to brake, he should hit the brake."
    So, what happens when you do hit the brake? Then and only then does the car begin the dance of regeneration, harvesting speed in exchange for battery juice. Dip into the brake gently and you won't engage the physical brakes. But, tuck in a little deeper and then the hydraulic system is engaged. I asked Propfe about the feel of this system, as I've driven many an electrified machine with clumsy stoppers. Propfe assured me that, thanks to the brake-by-wire system employed here (similar to that on the Acura NSX), it's impossible to feel that transition. "They have done a perfect job," he said of the car's engineers."
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This is interesting because Car and Driver published their review of the Taycan and they wrote about how there isn't "one-pedal braking" because regen only happens when you push the brake.

There's No One-Pedal Driving
Many EVs provide enough deceleration when lifting off of the throttle to bring the vehicle to a complete stop and enable true one-pedal operation. Not the Taycan. Citing the fact that the most efficient thing to do is coast, and clearly not trusting the pedal control of its buyers, Meier said they decided to not offer much regen capability and instead wait to do the majority of regen when the driver pushes the brake pedal. There are two settings, though. The default is none, but a slight amount can be enabled, if desired.
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