Understeer and oversteer are vehicle dynamics terms used to describe the sensitivity of a vehicle to steering. Simply put, oversteer is what occurs when a car turns (steers) by more than the amount commanded by the driver. Conversely, understeer is what occurs when a car steers less than the amount commanded by the driver.
Understeer happens when the front wheels start to plow straight even if you have the steering wheel turned. Front-wheel-drive cars are susceptible to understeer because power is being sent to the same wheels that steer the car, and when the tires start spinning there’s no grip to steer. If your front tire tread has ever been packed with snow or mud, you know the feeling of understeer because, as you turn the wheel, the car keeps going straight. The most common form of understeer is caused by accelerating too soon in a corner, lifting the weight distribution, and grip, off of the front tires. However turning the wheel too fast, and too far, can also cause understeer. The steering wheel is most intuitive control in the car. On the road, below the limit of the car, more wheel equals more turning. This is not so at speed. The tire wants to go straight, so the more we turn it, the less it actually wants to grip.
Oversteer is the tendency for the rear end to slide out or fishtail. In responsible everyday driving, there’s no reason oversteer should be a concern. In rain, snow or mud, however, the rear end of rear-wheel-drive cars can creep out on you. Traction and stability control can minimize that fishtailing. The exhibition sport of drifting is an activity that revolves around oversteer; drivers pitch their specially-built cars sideways and smoke the tires at high speeds. Fundamentally, the rear end of the car has lost grip, and begins to overtake the front.
Understeer happens when the front wheels start to plow straight even if you have the steering wheel turned. Front-wheel-drive cars are susceptible to understeer because power is being sent to the same wheels that steer the car, and when the tires start spinning there’s no grip to steer. If your front tire tread has ever been packed with snow or mud, you know the feeling of understeer because, as you turn the wheel, the car keeps going straight. The most common form of understeer is caused by accelerating too soon in a corner, lifting the weight distribution, and grip, off of the front tires. However turning the wheel too fast, and too far, can also cause understeer. The steering wheel is most intuitive control in the car. On the road, below the limit of the car, more wheel equals more turning. This is not so at speed. The tire wants to go straight, so the more we turn it, the less it actually wants to grip.
Oversteer is the tendency for the rear end to slide out or fishtail. In responsible everyday driving, there’s no reason oversteer should be a concern. In rain, snow or mud, however, the rear end of rear-wheel-drive cars can creep out on you. Traction and stability control can minimize that fishtailing. The exhibition sport of drifting is an activity that revolves around oversteer; drivers pitch their specially-built cars sideways and smoke the tires at high speeds. Fundamentally, the rear end of the car has lost grip, and begins to overtake the front.
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ReplyDeleteWhere used this method what the main logic and what the mater mention here plz explain
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