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Tesla PLAID: Why It Pushes The Limits Of Physics - YouTube
Channel: Electric Future
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elon musk has said that the tesla model
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s plaid features some of the most
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advanced secret technology on earth what
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are these practically alien innovations
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he's referring to come along for a drive
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with me and let's explore the most
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interesting technical highlights of the
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vehicle
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the 2022 tesla model s plat is a
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frankenstein creation of the 0-60 ev
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arms race half grocery sedan half
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million dollar hyper car a polite
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whizzing and beeping robot on wheels
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whose acceleration outpaces human
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reaction time and humbles every other
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car on the road
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when you step into the cockpit you're
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entering a new automotive paradigm that
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will redefine your perception of time
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and space
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a universe where 120 miles per hour is
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60 miles per hour and the controls are a
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low latency human machine interface tied
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directly into your nervous system elon
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described the car as a spaceship and
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while the driving experience is out of
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this world and a yoke is normally found
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on an aircraft the tesla model s plat is
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the quickest production car on earth
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the plaid features a few key upgrades
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that push the limits of physics and make
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it different than any tesla before it
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let's first bring the car behind enemy
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lines at the drag track and explore her
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most publicized feature
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the model s plaid has a special drag
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strip mode to produce maximum
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acceleration for racing and
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demonstration select drag mode in the
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plaid tesla begins a high performance
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thermoregulation regime running glycol
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through the heat exchanger to cool
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synthetic oil which is pumped to the
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vehicle's three drive units one up front
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and two in the rear push down on the
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brake and accelerator simultaneously and
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the car's front end crouches into a
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cheetah stance in preparation for launch
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foot off the brake and the vehicle
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launches
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notice the front end lifts slightly
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skywards as the weight is
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gravimetrically transferred to the rear
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tires during peak acceleration the
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acceleration is a physical experience
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the g-force pushes your spine into your
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seat horizontally with a force over 1.2
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times your body weight this low
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vibration linear acceleration feels like
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a pulling sensation as if an invisible
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steel cable was steadily pulling you
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down the track as opposed to a
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combustion engine car which feels more
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like being pushed along by a rumbling
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rocket but what makes the plaid's
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powertrain different than any other
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electric car on the road
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[Music]
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the rear motor assembly is the plaid's
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most significant upgrade it consists of
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two souped up model 3 drive units placed
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back to back house symmetrically inside
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a precision aluminum subframe these rear
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motors are coupled directly to each
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wheel with a single speed transmission
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in electric vehicles you really only
[153]
need one gear because the motors operate
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at higher rpms and internal combustion
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engines and produce stronger torque at
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low rpms essentially the plaid needs to
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reduce the speed of rotation from the
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high speed electric motor to deliver
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optimal wheel torque tesla opted for a
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7.5 to 1 gear ratio which means that for
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every 7 and a half turns of the rotor
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the spinning component inside the motor
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the tire will complete one full rotation
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so to achieve tesla's stated top speed
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of 200 miles per hour the motor would
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need to redline at approximately 24 000
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rpm to achieve such high performance
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tesla had to think outside the box and
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incorporate some exotic materials and
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novel engineering methods
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it's hard to grok how powerful these
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little motors are at max rpms this
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whining hot mass of neodymium magnets is
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so energetically dense it's like a
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little pulsar star just like the battery
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and range equation the limitations and
[203]
constraints of ev motor performance come
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down to material science and engineering
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it's just hard to make a motor this size
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spin that fast without it blowing apart
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or overheating all three permanent
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magnet synchronous reluctance motors
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contain an innovative carbon fiber
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sleeved rotor instead of a traditional
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metal sleeved rotor this carbon fiber
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sleeve constrains the copper rotor from
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expanding due to radial acceleration
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permitting higher rpms and creating a
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stronger electromagnetic field this
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gives the car very linear power band
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with peak horsepower 80 miles per hour
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all the way up to 200 miles per hour
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although the current top speed is
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electronically limited to 163 miles per
[238]
hour to keep things reasonable but the
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incredible thing about modern evs is
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that they're fundamentally controlled by
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software and massive performance gains
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can be unlocked with over-the-air
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updates but why is uncle elon holding
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back is he scared to give tesla
[251]
customers more card than they can handle
[256]
it appears a software update can unlock
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double sentry speed but you might need
[260]
some hardware upgrades if you want to be
[262]
able to stop a curious listing for a
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plaid carbon ceramic brake kit popped up
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on tesla's website
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and it seems tesla is waiting to ship
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this improved stopping power before they
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unlock 200 miles per hour to regular
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customers
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[Music]
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elon frequently argues that building a
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factory is about 100 times harder than
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building a car and it's the machine that
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builds the machine that represents the
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greatest engineering challenge for the
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carbon sleeved rotor this proved true
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yet again on twitter elon said the plaid
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carbon rat motor is arguably the most
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advanced motor on earth outside of maybe
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a lab somewhere we have to keep some
[293]
secrets elon is referring to the
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manufacturing process tesla found a way
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to tightly wrap the rotor in carbon
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fiber without the use of heat which
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could weaken the magnets they
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accomplished this by winding the fiber
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over the rotor at a high tension load
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with a custom machine designed by tesla
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automation it's incredible how all this
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engineering work happens on the back end
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but let's talk about the differences you
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can actually see
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in terms of design notice the wider
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fender flares to accommodate wider
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wheels different rear paneling a
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reworked hood plus a carbon fiber
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spoiler the bulging bodywork signals the
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vehicle's more powerful internals but in
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electric vehicles there's no need for a
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long sweeping hood massive air intake or
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a big shiny grille cargo cult relics of
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125 years of luxury heat engine design
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tradition the tesla plaid maintains an
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understated appearance with subtle hints
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that it contains something extraordinary
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but somehow still manages the lowest
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drag coefficient of any production car
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ever built
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[Music]
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this car i'm running about 9.5 seconds
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yeah the stock completely stopped yes
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type it right what do you think about
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electric cars
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i think that's a bad thing what is this
[365]
thing wrong
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it's a girl's car so you know it's
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time that the girl's got some
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racial money
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oh okay
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but um i see the records 9 16 of those
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right now right yeah i believe so
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that's fine man i think tesla did a
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great job in these cars
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i like them i like i really like them
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the record quarter mile speed for the
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plaid is nine seconds at 154 miles per
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hour and the car produces 1020
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horsepower and 1050 pound feet of torque
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but there's a lot more to a car than
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just driving fast in a straight line
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normally a yoke is found on aircraft
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where a pilot can actually pull up to
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control altitude pitch and roll on the
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tesla it's just a steering wheel with
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the top half cut off it can be a bit
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disorienting at low speeds until you get
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used to it and it takes a bit of
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practice tesla is setting the table for
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fully autonomous driving with a smaller
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more compact steering profile that
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reduces central gauge cluster
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obstruction it's a spooky sight to see
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that yoke moving all on its own while
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cornering sharp turns but how does it
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actually work mechanically first a word
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[436]
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[438]
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[440]
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[442]
its aluminum casing is well suited for
[443]
indoor or outdoor usage and it's
[445]
certified to operate between the
[446]
temperature ranges of negative 40
[448]
degrees fahrenheit to 122 degrees
[450]
fahrenheit providing a smooth home
[451]
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[453]
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[457]
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[458]
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[460]
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[462]
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[463]
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[465]
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[467]
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[468]
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[470]
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[475]
the model s plaid uses a rack and pinion
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steering system when you turn the yoke
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you're engaging a gear which translates
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the rotational motion into linear motion
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moving the direction of the wheels from
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side to side with a little electric
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assist all pretty standard so far but
[489]
here's where things get autonomous
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there's a simple brushless dc motor and
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control board mounted right on the
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steering rack inside the front subframe
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when autopilot is engaged this motor
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drives a belt connected directly to the
[501]
input shaft turning the yoke just like a
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human driver would this elegant
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belt-driven steering rack is robust
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enough to handle the maneuvering demands
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of any real-life scenario as soon as the
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software can catch up to this crazy
[512]
simulation we call reality
[517]
on the road the car feels balanced and
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sporty but you can sense the power
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assisted steering compensating for the
[522]
extra weight of the battery the plan's
[524]
ride height is a bit lower than previous
[526]
models which improves handling and it's
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bolstered by tesla's new air suspension
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with adaptive damping a computer is
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pinging sensors on the car's suspension
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a thousand times per second making rapid
[536]
adjustments to minimize body roll and
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isolate road imperfections on the rear
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wheels all torque vectoring is done
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electronically by controlling the
[543]
frequency of power supplied to the
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motors with silicon carbide mosfets in
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the inverter stability control systems
[549]
measure your steering and pedal inputs
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against each wheel's available grip
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adjusting torque to give you the best
[554]
traction by using precise torque
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factoring on the two rear electric
[557]
motors located on the same axle launch
[560]
and handling characteristics are
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improved
[562]
the car's performance and handling is
[564]
undisputed as demonstrated by way better
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drivers than me
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the nurburgring race track in germany
[571]
has emerged as the ultimate proving
[572]
ground to test the performance of
[574]
electric vehicles and provides perfect
[575]
real-world conditions to test attributes
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such as speed acceleration braking and
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handling in september of 2021 an
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unmodified tesla model s plaid set a new
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lap record for electric production cars
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at the nurburgring with an official lap
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time of 7 minutes and 35 seconds with an
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average speed of 103 miles per hour
[597]
these performance figures are impressive
[598]
and it makes sense that electric cars
[600]
are beating combustion engine vehicles
[602]
fundamentally electric propulsion
[604]
operates at far greater thermal
[605]
efficiency than combustion engines which
[607]
lose lots of energy as excess heat but
[609]
evs do come with their own unique
[610]
challenges when thinking about electric
[612]
cars the heating and cooling system
[614]
might not be the first thing to come to
[615]
mind but this seemingly insignificant
[617]
detail has a big effect on the vehicle's
[619]
range because electric cars can lose up
[621]
to 40 percent of their range in cold
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weather if you turn the heat on full
[624]
blast the new hvac system on the model s
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plaid uses a heat pump which provides 30
[629]
longer range and requires 50 less energy
[632]
in cold weather than the previous
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generation model s
[637]
there's one thing on the 2022 tesla
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model s plaid that hasn't changed since
[640]
the original tesla roadster was released
[642]
in 2008. the battery pack still consists
[645]
of standard cylindrical 18650 cells not
[648]
yet the larger 4680 cells revealed
[650]
during tesla's battery day in may of
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2021. in the plaid s they've scaled down
[655]
the battery capacity from 104 kilowatt
[657]
hours to a slightly smaller 100 kilowatt
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hour pack with improved cooling and
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electrical architecture the goal is to
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ensure the battery can meet the high
[665]
performance requirements of the plaid
[666]
without overheating or losing power the
[668]
pack contains 7920 cells arranged into
[672]
five modules separated by a cooling
[674]
manifold that channels glycol in a
[675]
zigzag pattern across the entire pack
[677]
this allows impressive charge times the
[680]
car can add up to 187 miles of range in
[682]
just 15 minutes at a supercharger
[684]
eventually instead of using modules
[686]
tesla plans to structurally integrate
[688]
the battery cells directly into the
[689]
platform of the vehicle this design will
[691]
reduce the total mass of the battery
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pack and improve efficiency you can make
[694]
improvements to the thermal regulation
[696]
and architecture of a battery pack for
[698]
greater efficiency and faster charging
[700]
speeds but the car's modest 396 mile
[703]
range is really limited fundamentally by
[704]
the chemical power to weight ratio of
[706]
the lithium-ion battery cells this might
[708]
be the last plaid tesla we see with the
[710]
old cells before tesla makes a switch to
[712]
those big soda cans currently slotted
[714]
for the model y semi and cyber truck the
[717]
jumbo 4680s are expected to achieve a
[719]
five times increase in energy storage a
[721]
sixteen percent increase in range and a
[724]
six times increase in power on a tesla
[726]
earnings call elon outlined his plan to
[728]
consolidate tesla's batteries down to
[730]
two or three form factors one with a
[732]
nickel based cathode for high powered
[734]
vehicles and the other iron based for
[736]
mass-market cars like the tesla model 3.
[738]
now let's hop in the cabin and briefly
[740]
discuss the car's interior
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[Music]
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the plaid's interior is totally reworked
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from previous models and not to
[749]
disappoint but the interior does not
[751]
actually contain any plaid fabric in
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fact the seats are made out of vegan
[755]
leather the term plaid comes from the
[757]
science fiction movie spaceballs when
[759]
their spaceship travels beyond ludicrous
[761]
speed the stars warp and create a plaid
[763]
pattern the nomenclature is starting to
[765]
make more sense now right the car has
[767]
very strong noise vibration and
[769]
harshness dampening which
[770]
counter-intuitively is very important
[772]
for electric cars because they don't
[774]
have a rumbling motor to mask squeaks
[776]
and creaks
[778]
the cabin is like being inside a pair of
[780]
noise-cancelling headphones the car
[782]
features active noise-cancelling
[783]
microphones that detect ambient sounds
[785]
and the car's speakers generate opposite
[787]
sound waves that collide and eliminate
[789]
the unwanted noise that said pretty much
[791]
everything inside is brand new for 2022.
[793]
the center console gets a new landscape
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oriented 17-inch touchscreen and from
[797]
there you control all aspects of
[798]
operation powered by an amd ryzen
[801]
processor it's responsive and packed
[803]
with tesla's signature entertainment
[804]
features new for 22 is tesla's
[806]
predictive touchscreen gear selector
[808]
tesla believes all input is error and
[810]
the car is meant to predict what
[812]
direction you want to go based on the
[813]
environment for example if there's a
[815]
wall in front of you you probably want
[817]
to back up tesla plans to keep
[818]
minimizing input until the car can
[820]
eventually read your mind maybe
[822]
literally
[823]
lastly the two inductive cell phone
[825]
chargers are a nice touch as wires are
[827]
the last impediment to civilized
[828]
computing
[831]
[Music]
[833]
if you're accustomed to the sound of a
[834]
rumbling motor and the noxious aroma of
[836]
burning hydrocarbons in your nostrils
[838]
it's tough to accept that the tesla
[840]
model s plat is the quickest production
[841]
car in the world but the car was made to
[843]
prove a point to demonstrate electric
[845]
cars can be the fastest and safest cars
[847]
on the road as elon put it the plat is
[850]
safer than a volvo and faster than a
[852]
porsche tesla isn't stopping with just
[854]
the sedan they're even going beyond
[856]
ludicrous in the suv form factor too
[858]
with a plaid tesla model x the tesla
[861]
model s plaid is a car for practical
[862]
folks that appreciate performance over
[864]
showiness and want to ride on the
[866]
bleeding edge of technological progress
[868]
and when all comparisons to your daily
[870]
driver sedan are with seven figure hyper
[872]
cars you know you're in good company
[874]
thanks to try a tesla for loaning me the
[876]
black and white tesla for this video if
[878]
you're ever in the south florida area
[880]
and want to try a tesla visit try a
[882]
tesla dot com
[885]
we showcase cutting edge sustainable
[886]
technology if you enjoyed this video
[888]
please give it a like and if you believe
[890]
in an electric future please subscribe
[892]
to our channel you may be interested in
[894]
watching one of these videos next thanks
[896]
for watching and let the volts be with
[897]
you
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