## Slip ratio during cornering?

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Hello,

today i try to learn a littel bit of tire data and Slip ratio.

I KNOW.
A slip ratio of -1 means full braking lock; a ratio of 0 means the tire is spinning free and 1 is full slip. Also i read the ideal slip ratio for maximum deceleration is 10 to 30%.

But how i can define the Slip ratio for conering? Is it also zero? I think not, or?

But how can i define it?

Hope you can help me.

Thank you
Dean4.0

Joined: 10 Aug 2010

Anyone?
Dean4.0

Joined: 10 Aug 2010

Think you answered your own question. Free rolling the longitudinal slip is 0.
Grip is a four letter word.

2 is the new #1.
Jersey Tom

Joined: 29 May 2006
Location: Huntersville, NC

Ok Thank you.
Dean4.0

Joined: 10 Aug 2010

Slip ratio for cornering.. aren't you referring to slip angle?
Come back 747, we miss you!!
Caito

Joined: 16 Jun 2009
Location: Argentina

Believe he indeed meant slip ratio.. or more correctly still, longitudinal slip.
Grip is a four letter word.

2 is the new #1.
Jersey Tom

Joined: 29 May 2006
Location: Huntersville, NC

So, if a car is cornering+braking, to say something..

You could define the tire state by slip angle and slip ratio, or, longitudinal slip and lateral slip?

Meaning the first would be like polar coordinates and the second cartesian coordinates?
Come back 747, we miss you!!
Caito

Joined: 16 Jun 2009
Location: Argentina

Caito wrote:So, if a car is cornering+braking, to say something..

You could define the tire state by slip angle and slip ratio, or, longitudinal slip and lateral slip?

Meaning the first would be like polar coordinates and the second cartesian coordinates?

Slip ratio and longitudinal slip are slightly different ways of measuring the same thing, yes. One is zero while free-rolling, the other isn't necessarily.
Grip is a four letter word.

2 is the new #1.
Jersey Tom

Joined: 29 May 2006
Location: Huntersville, NC

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