hydrualic or electric power assisted R&P steering system

[autocrazy]

hey guys
i have one question to all please tell me which one is better hydraulic or electric rack & pinion steering system and why??
thanks
peeyush

[autocrazy]

hey guys
i have one question to all please tell me which one is better hydraulic or electric rack & pinion steering system and why??
thanks
peeyush

[Dash]

I prefer jet turbine steering. Its a lot faster!
Plus it will be super easy to steer the car with all that power to assist you!

[AxelRipper]

well a hydraulic system has better on center feedback, and you can more easily spot problems in your lines than electric, but electric would probably be a tad lighter and you can program your own motion ratios.

In reality, I think an electro-hydraulic setup would probably work the best. Use electronic sensors to tell the hydraulic system when to add pressure. Then when it gets close to center, you can use less pressure so you know where center is, but you can easily manipulate the steering feel and feedback by changing the computer's parameters

hope this helps

[Zac]

I think the ideal solution here is a CVT.

[TMichaels]

I recommend wireless steer-by-wire, saves a lot of weight!

Regards,

Tobias

[autocrazy]

First of all thanks for ur opinion
one more question,can u just tell me if i am making a fsae car(600 cc) then which type of steering system i will prefer first and which is more efficieny,cheap and compact ??

[Zac]

what are your scrub radius, kingpin offset, caster, camber, and steer ratio?

ultimately you'll have to make your design decisions for yourself, but do you really need power steering? Lots of production cars, many race cars, and virtually all FSAE cars use a manual steering box.

My suggestion would be that you develop a simple vehicle model with a steering system, combine that with some tire data (you can probably just borrow the F3 tire that comes with CarSim if you aren't a member of the TTC), and figure out what you need to do to keep the max steering effort reasonable.

be an engineer.

[Dash]

Well if you are truly making an FSAE car to take to competition, both of those are not allowed ( take a peek at the rules and you will find that out ). Now, I don't know if there is anything against power assist though. That you would have to take up with the rules committee by sending them an email.

[Adambomb]

Power-assist steering is legal as far as I know. But the better question is, why? Aside from race cars, a lot of compact cars and trucks weighing 2500+ lbs don't have power steering from the factory.

In fact, I even converted my '89 Sentra from power steering to manual steering. Why? Because it leaked everywhere, only cost $35 for a manual rack, and the power assist was completely unnecessary on a 2200 lb car.