Jah, potem bi tut na suhem asfaltu avto najbol pospeseval, ko bi se izpod gum polno kadilo in bi se kolesa vrtela ko nora in bi imela masina obrate na rdecem. Zakaj potem taka znanost z 4WDjem , omejevalci moci, ASRjem, etc?
Si kdaj slisal za wheel-spin? Na suhem asfaltu se kolo vrti ko zmesano, guma se trga in kuri, pospeska pa skoraj nobenega. Ko zaviras je razlika le v predznaku pospeska. Namesto pozitivnega je ta negativen. Fizika na delu je pa ista. Ce guma drsi je pospesek po absolutni vrednosti bistveno manjsi, kot pa ce guma ne drsi.
http://www.abs-education.org/faqs/faqindex.htm
In what circumstances might conventional brakes have an advantage over ABS?
There are some conditions where stopping distance may be shorter without ABS. For example, in cases where the road is covered with loose gravel or freshly fallen snow, the locked wheels of a non-ABS car build up a wedge of gravel or snow, which can contribute to a shortening of the braking distance.
Ta primer sem zasledil ze na mnogih koncih, ki se jim da vrjet. Da pa je na suhem asfaltu ABS slabsi kot "ne-ABS" ker se guma trga in podobno - pa je slisat le od ...
Se citat s
http://www.nhtsa.dot.gov/cars/problems/ ... rakes.html
Do cars with ABS stop more quickly than cars without?
ABS is designed to help the driver maintain control of the vehicle during emergency braking situations, not make the car stop more quickly. ABS may shorten stopping distances on wet or slippery roads and many systems will shorten stopping distances on dry roads. On very soft surfaces, such as loose gravel or unpacked snow, an ABS system may actually lengthen stopping distances. In wet or slippery conditions, you should still make sure you drive carefully, always keep a safe distance behind the vehicle in front of you, and maintain a speed consistent with the road conditions.