http://www.thetruthaboutcars.com/2018/06/single-motor-electric-vehicles-lame-says-jaguar/
Single-motor Electric Vehicles? Lame, Says Jaguar
June 9, 2018  Steph Willems

[image  
http://www.thetruthaboutcars.com/wp-content/uploads/2018/03/Jaguar-I-Pace-Hero-e1519938553141-610x348.jpg
Jaguar I-Pace Hero  Image: Jaguar Land Rover
]

Jaguar’s I-Pace seems to be Tesla’s greatest threat, if pre-orders in Europe
(and glowing reviews) are anything to go on. The electric SUV, which arrives
in the U.S. later this year, features twin motors and a combined output of
394 horsepower and 512 lb-ft of torque funnelled to all four wheels.

This is the only way to build a sporty electric car, Jaguar claims. Speaking
at the model’s recent global launch, Jaguar Land Rover’s head of vehicle
development, Wolfgang Zeibart, said the company threw out any ideas for a
two-wheel drive version.

“If you really want a lame duck then you can do it,” he said. This mantra
applies to future Jaguar electrics, which will almost certainly appear with
the I-Pace’s platform underneath.

According to Wheels, Zeibart made sure to slam Tesla as he rhymed off the
vehicle’s attributes. Features, it should be noted, that required a
dual-motor setup to pull off. These include handling, traction, regenerative
braking, wheelbase, and interior volume.

“The Tesla S was a single-motor design initially, and what that means is if
you have only one driven axle you cannot put the wheel into this (I-Pace)
position,” he said. “You must move it forward as you need load on the driven
axle. When it moves forward you reduce the interior space and the available
space for the battery. It’s one compromise after the other and therefore we
decided two motors – full stop.”

To recoup maximum energy during regenerative braking, you’d want the
electric motor mounted in the front, Zeibart said, but that would impact the
car’s launch abilities.

“If you accelerate, the rear motor is the better motor,” he said. “If you
want to recuperate, the front motor is the one. We can recuperate up to 150
kW, but if you only do it on the rear axle you are limited to about 60 kW.
If you recover (only) from the front, any longitudinal force you apply
reduces your available side force. This then makes the car unstable.”

The I-Pace’s purpose-built platform is “definitely scaleable,” Zeibart
added, meaning we’ll likely see a range of vehicles built off the I-Pace’s
bones. Perhaps a flagship sedan will be among those future models?

But back to Tesla, which Zeibart took every opportunity to poke in the eye.

“The Tesla has a disadvantage as the battery cooling is so poor,” he said.
“They have round cells that are basically cooled by air and then they have a
water plate underneath. Here (I-Pace), the cells are standing on a water
plate so the cooling is much better.”

Tesla apparently refutes this assertion, but Zeibart doesn’t seem to care.

“What we have seen on the Nurburgring, the Tesla degrades rather quickly
whereas this car runs the full lap,” he said.

When the I-Pace appears on these shores, it will carry a base sticker of
$70,495 (after delivery). Food for thought for luxury EV buyers, as that’s
$10k less than Tesla’s Model X. All Teslas stand to see their federal tax
credit diminish before too long, too, thus widening the price gap between
the two rivals.
[© thetruthaboutcars.com]


+
https://www.thesun.co.uk/motors/6523778/spencer-11-joins-his-dad-rob-45-to-test-new-electric-jaguar-i-pace/
Spencer, 11, joins his dad Rob, 45, to test new electric Jaguar I-Pace
13th June 2018  Here's my son Spencer, 11, driving the all-electric Jaaaaag.
... “And I like the Mars red seats . . . and the little Jaguar labels . . .
and the clever air-con switches ...
https://www.thesun.co.uk/wp-content/uploads/2018/06/NINTCHDBPICT000412786204.jpg




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