Active camber suspension system - a CCV suspension prototype

This is a suspension prototype developed in the DDL that has active suspension, active steering, and active camber. It's purpose is to explore new methods of generating tire forces, possibly allowing future cars to outhandle, outperform, and outmaneuver anything else. It currently uses a giant-sized 300/35R18 motorcycle tire on a chassis dyno and is designed so in the future it can be put on our test vehicle, X1.

Category:

Science & Technology

Tags:

• active
• suspension
• camber
• ccv
• tires
• steering
• handling
• control
• ddl
• stanford

[cbremer83]

A system like this would add a lot of weight to a car. Not to mention a large chunk of that would be un-sprung weight. One of the biggest things is handling is reducing un-sprung weight. Things like light control arms, light wheels, light brake, and hub assemblies. Lighter the weight with out compromising strength the better. All the actuators and servos in a system like this would have the opposite effect.

[Bronzer1991]

@yuds16 ok, i misinterpreted what you said, i assumed you meant neg camber rather than neg slip angle. I cant see any active suspension systems being employed practically in any drift car though. Kuroi managed to kick off the whole backwards entry craze and that was without any fancy active suspension technology, although its interesting to wonder how this sort of active camber/toe technology could be used for drifting if it was developed into a realistic package.

[yuds16]

@Bronzer1991 sorry, but i wasnt talking about the rear suspension. rather i said "negative angle" as drifting angle not the camber angle. so negative angle i.e."reverse/backward entry" will be possible to do.

[Bronzer1991]

@yuds16 oooooh dear. why would you want negative camber mid slide? static camber is added to drift cars so that the wheels level out on lock and provide grip, having camber mid slide would reduce grip which is retarded. proper drift cars dont run a huge amount of negative rear camber so as to maximise rear grip. If you do see it, its sometimes because people run tyres too large for the power so they add camber to reduce grip, or just because people think it looks cool.

[toasting]

great. great.

been done.

about 10 years ago.

in france.



[rmaltbie1]

Looks heavy, for off-road maybe

[AndrewKH85]

what do you need active parts for this for? Just about everything you need to do can be done with simple knowledge of geometry and physics .

[mrnewagemotor]

OH BOY - GOODBYE BUMPSTEER ! ! ! I can also see a great deal of other potential with this too. Like tilting wheels into turns - according to G-Forces and NOT tire rotation speeds. Also adding massive suspension lift according to terrain roughness. And that's just for starts....MrNewagemotor

[N9olan]

Only thing with that round wheel, I'm not sure if it will wear evenly, Many tires that are cambered do not wear evenly except for the tire that has built in camber.

[N9olan]

This is without a doubt awesome but seems really weighty... Would still like to see it in a car, especially one with AWD!!!