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Zorluk: OrtaSkid Control and Recovery

When recovering from a drive-wheel skid on a slippery roadway, what must a driver do the moment the vehicle begins to straighten out?

  1. A
    Keep the steering wheel turned firmly in the direction of the initial skid until all motion stops.
  2. B
    Apply hard, continuous service braking to lock the wheels and force the vehicle into a straight slide.
  3. Counter-steer by quickly turning the steering wheel back in the opposite direction.Cevap
  4. D
    Engage the engine retarder to help slow the drive axle through engine compression.

Cevap

Counter-steer by quickly turning the steering wheel back in the opposite direction.
The correct recovery procedure requires counter-steering by turning the wheel quickly back the other way as soon as the vehicle begins to realign. Because a commercial vehicle develops rotational momentum during a skid, failing to counter-steer will cause the vehicle to swing past center and skid out in the opposite direction.

Adım Adım Çözüm

1
Recognize the transition point during drive-wheel skid recovery where the vehicle begins to realign with the roadway.
Vehicle body begins swinging back toward the intended path of travel.
Initial steering into the skid stops the slide, but rotational inertia will carry the vehicle past center.
2
Counter-steer by turning the steering wheel promptly in the opposite direction.
Front wheels arrest rotational momentum and center the vehicle in the travel lane.
Without rapid counter-steering, the vehicle will over-rotate and skid in the opposite direction (counter-skid).

Anahtar Kavram

Counter-steering during drive-wheel skid recovery to prevent secondary skids
Tahmini Süre:1m 0s
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Konular

Skid Control and Recovery

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