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Why not a self jacking option

Why not a self jacking option

With the air suspension would it be possible to design into the system the ability to lift one tire.

Basically raise the car to full ride height then have the ability to retract the air shock on one wheel. May require adding a small vacume pump and control to allow pulling up individual wheels. Could be a first and unique feature for the model S.

Might require a large friend tasked to sit on the opposite corner of the car.

The things that pop into your head on long road trips. No jack needed with the self jacking air suspension option.

Joshua Burstyn | 17 gennaio 2014

Many people already have a "self jacking" option. ;-)

J.T. | 17 gennaio 2014

Could be a first and unique feature for the model S.

I thought the Citroen did that.

tezzla.SoCal | 17 gennaio 2014

@Jewsh lol

Brian H | 17 gennaio 2014

Vibrators help.

Roamer@AZ USA | 17 gennaio 2014

Someone will always find a way to use features in an inappropriate way...... Gotta love humans.

Joshua Burstyn | 17 gennaio 2014

@Roamer:

"Someone will always find a way to use features in an inappropriate way."

Meh, Tesla is all about pleasing the customer, so this is just an "extension" of that philosophy.

Dramsey | 17 gennaio 2014

@Roamer: "With the air suspension would it be possible to design into the system the ability to lift one tire."

No, it wouldn't. Even if you were able to pull a perfect vacuum on the air shock, external air pressure would not be enough to lift the very heavy wheel-tire combination.

The main problem with this idea is that the air shock doesn't have enough surface area for external air to press against-- it's a vertical tube, not a broad flat plate.

Also, right now the air pump only pushes air into the shock. To lower the car, they don't pump air out: they just open a valve and let the car's weight do the work.

As @jtodtman mentioned, some Citroens could in fact do this, but their hydropneumatic suspensions were quite different from the Tesla's air suspension.

Roamer@AZ USA | 17 gennaio 2014

Dramsey

If the shock can be designed to support several thousand pounds of weight on the down stroke it could also be designed to lift several hundred pounds on the up stroke. Would obviously require design changes since as you correctly stated it is currently designed to apply force in one direction.

Pneumatic actuators currently provide bidirectional force so it's not difficult but would obviously require design changes to operate and control.

The vacuum concept was proposed as a less complex design. Without knowing the air piston surface area it is difficult to determine the lifting force possible using a vacuum pump.

Using air pressure would easily lift it but would require a bi directional actuator rather than the current single direction.

Roamer@AZ USA | 17 gennaio 2014

The harder problem is the balance point of the vehicle weight distribution.

tes-s | 17 gennaio 2014

And then what. There is no spare. :)

Roamer@AZ USA | 17 gennaio 2014

Maybe with the self jack option they could include a spare tire option. Great thought.

Or you can take the tire off get it repaired and put it back on.

Roamer@AZ USA | 17 gennaio 2014

So many trailer hitches laying in the road these days flats are going to happen.

Brian H | 17 gennaio 2014

Citroen flashback?