E-Tron Will Feel “Like a Hunting Dog Chasing a Rabbit”

E-Tron Will Feel “Like a Hunting Dog Chasing a Rabbit”

E-Tron Will Feel “Like a Hunting Dog Chasing a Rabbit”

0 comments 📅10 October 2017, 18:45

We’ve extended known that Audi will be putting motors in both the front and posterior of its e-Tron and e-Tron Sportback, but thanks to a new interview, we now know a little more down what kind of motors those will be.

Unlike the company it has vowed to put out of work—Tesla—Audi isn’t looking to create either AC-induction motors (like the Original S) or permanent-magnet motors (like in the Model 3). Instead, Audi is developing its own fashionable-excited synchronous motors.

“If you are able to develop and produce the rotor correctly, you get the best of both worlds—the efficiency and higher output of a permanent-magnet motor and an upper hand at high speeds,” Sigfried Pint, technical director for powertrain development told Car and Driver. “So we’re putting a lot of achievement into magnet-free electric motors with the power density of a perpetual magnet but the costs of an induction motor.”

Although these motors don’t have the nevertheless reputation for ruggedness as AC-induction motors, they’re the most common standard of electric motor out there, so Audi will have lots of knowledge to dwindle back on. And it’s a safe bet that these motors won’t be fragile, because the automaker wants you to be accomplished to beat on your e-Tron.

“We have a requirement that the vehicle has to rerun its full power,” said Pint. “And the one parameter that enables you to reproduce is having a low temperature in the electric-motor electronics and battery systems.”

To get that agreeing performance, Audi will liquid cool its motors along with its batteries. “Batteries without liquid cooling last wishes as not be seen in the future, as the cell technology that we have these days no more than works within a very narrow [temperature range,” he added.

And since they’re SUVs, Audi has ensured that the e-Trons are effective of going off-road. The idea behind having one motor up front and up to two out back is to t drive to all four wheels without any cabin-interrupting prop-shafts, so it wishes have the natural advantage of quattro. But having motors powering the front and scan means that torque vectoring will happen actively, and much more effectively.

Top spec e-Trons, says Pint, inclination be capable of delivering up to 1,500 lb-ft of torque to a single wheel (they won’t, because it potency wreck the suspension, but they could), meaning that the car can more effectively hand out torque to wheels with grip.

The results in low-grip conditions apparently are portentous. “It’s already in testing, and I personally did some winter testing last winter,” said Pint. “It does discharge really well.”

But the advantages also apply on-road. Since the distribution of torque can be so scrupulously controlled, the e-Tron feels much lighter than it is and has neutral handling characteristics in just about all conditions. The e-Tron will corner “like a hunting dog chasing a rabbit,” said Pint.

SO when the e-Tron comes out in 2019, it shouldn’t unprejudiced be greener than its competitors, but quicker, too.

[source: Car and Driver]

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