What exactly is under-steer and over-steer?

Answer 1

Understeer: You turn the steering wheel and the car doesn't want to turn.

Oversteer: You turn the steering wheel and the car turns further or faster than the driver expected.

Answer 2

Understeer is when you turn the steering wheel and the vehicle moves less than you inputted and oversteer is when you turn the steering wheel and the vehicle moves more than you inputted.Understeer is built into most every vehicle ever made to prevent the vehicle from running away from the drivers control in a panic situation though it can usually be dealt with by carefully applying the throttle to power the vehicle through the turn. Where as oversteer can usually be overcome by a carefull application of the brakes .For a example of oversteer out of hand watch a inexperienced driver in a high power vehicle like a rear engine Porsche trying to turn the vehicle while keeping his foot on the accelerator the rear end of the vehicle tries to swap ends with the front end.Ideally you want neutral steering but the cost to achieve that on a regular production vehicle would be prohibitive so vehicle manufactures error on the side of safety and dial understeer into the suspension If you ever watch a car race and hear someone say their car is tight then it's understeering and if they say it's loose it's oversteering. hope that helps.

Answer 3

Under steer is caused by lack of grip at the front end causing the car to want to carry on in a straight line when you are trying to turn. Over steer is caused by a lack of grip at the back end causing the rear of the car to slip outwards pointing the nose of the car deeper into the corner.

Answer 4

Under-steer or a tight car is when the front tires won`t grip and the car goes up the track. Over-steer or a loose car is when the rear tires don`t grip causing the car to want to wipe out.

Answer 5

Technically speaking, oversteer is when the slip angle of the front wheels is greater than that of the rear wheels. Conversely, oversteer is when the slip angle of the rear wheels is greater than those of the front.

Practically, this means that a car that is understeer slides out towards the 'outside' of a corner, as the front [steering] wheels are unable to retain grip. In oversteer, the back of the vehicle 'steps out' towards the 'outside' of a corner, pushing the nose 'into' the corner and the back outwards.

A driver generally corrects understeer by letting off the throttle gently to get the front wheels gripping again. Oversteer is corrected by steering briefly into the direction of the skid [applying opposite lock] and then swiftly turning back into the corner, while NOT suddlenly backing off the throttle [which will cause a car to spin].

Generally speaking, front wheel drive cars understeer, and rear wheel drive cars oversteer. However, manufacturers tend to tune the suspension of rear wheel drive cars so that prior to oversteering, they actually understeer. This makes them easier and safer to drive for the average driver, who would not intuatively be able to resolve oversteer: It serves as a 'warning'.

Answer 6

Understeer and oversteer is a a handling characteristic of an automotive vehicle:
UNDERSTEER: happens when the front of the car does not have as much grip as the driver wants, and the car has a tendency to plough straight on at a corner, which makes the car feel to slip away at the front, when cornering. It wears out the front tyres and slows the car down.
OVERSTEER: happens when the front of the car has more grip than the rear. It creates a feeling that the car is trying to spin, because the tail tends to swing wide: the slip angles of the rear tires are greater than the slip angles of the front tires.

Answer 7

it is something to do with the way in which you steer the car under steer makes the car if turning a corner too slowly and over steering makes you have to struggle to straighten the car up

Answer 8

If the car understeers, and no correction is made the result is a wider corner than intended, but the car remains stable.

If the car oversteers, the turn made has smaller radius than intended. The smaller radius produces higher cornering forces bring the required traction even closer to the limit of the rear wheels, and thus causing even more oversteer.

Answer 9

Sorry approximately in the previous. in case you nevertheless desire the respond, Graham suggested his automobile grew to become into pushing like a PIG. i think of Graham might desire to have had slightly oversteer because of the fact his back end got here visiting and hit the wall. The wing configurations of the nostril and back wing and weight jackers interior the automobile can result the fewer than/oversteer. OVERSTEER: additionally suggested as "unfastened." Describes a topic wherein the rear of the automobile is volatile simply by a loss of aerodynamic downforce or mechanical grip. Oversteer could be brought about by using a loss of rear downforce, too lots front downforce or inadequate rear grip. --------------------------------------... UNDERSTEER: additionally suggested as "push" or "tight." Describes a topic wherein the automobile does not desire to instruct interior the corners simply by a loss of aerodynamic downforce or mechanical grip. Understeer could be brought about by using a loss of front downforce, too lots rear downforce or inadequate front grip.

Answer 10

it's the NASCAR equivelant to tight and loose