ความคิดเห็นที่ 20
ลองดูคำอธิบายการเบรคแบบไม่มีABSทั้ง3แบบข้างล่าง
จาก http://www.canadiandirect.com/Auto/Safe_Driving_Tips/No_ABS.aspx
แบบ1 Wheel Lock
Never forget that if you lock-up the brakes and begin to skid, you have lost all directional control of the car. No matter what you do with the steering wheel, the car will continue straight ahead. Plus, a skidding car takes more distance to stop.
แบบ2 Best Effort or Threshold Braking
So, what do you do when faced with an emergency. First, don't "hit" or "slam" on the brakes. "Squeeze" on the brakes. It doesn't matter how fast you need to stop, squeeze the brake pedal - firmly. You will stop quicker by squeezing the pedal down than by slamming or hitting the brakes.
Then, squeeze the pedal down to the point just before the tires begin to skid - right at the limit of the tires's traction or grip.
You need to pay attention to the feel in the steering when braking. If the steering suddenly starts to feel light or insensitive, the front brakes are probably locked up. You should also notice that the car is not responding to the direction you've turned the steering wheel. And, of course, if you're driving on dry pavement you may notice the screeching of tires.
Actually, when you're braking right at the limit just before the brakes lock-up, a faint howl may be heard from the tires. Braking at this limit is called "threshold braking", and is the fastest and safest way to stop a car.
If you exceed the limit for threshold braking and begin to lock-up, ease up slightly on the pedal - curling your toes back should release enough pressure - and then smoothly reapply again. In other words, you may have to modulate the pedal pressure slightly using the tire noise, the forces on your body and the balance of the car for feedback. Abrupt, hard braking will cause the car to nose-dive, putting most of the braking effort on the front brakes, increasing your stopping distance.
แบบ3 Pumping
This does not mean "pumping" the brakes, which is definitely the least effective way of stopping a vehicle - and unfortunately, over-used. Perhaps years ago, when vehicles didn't have the sophisticated and durable braking systems we enjoy now, pumping was a useful technique. But not anymore.
จากคุณ :
akeb 
- [
6 ก.ย. 50 21:38:44
]
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