The accident answers put:
Step on reason of important matter of brake tread out
Last year on May 14 16 when 15 minutes, jilin saves one driver to drive a liberation that is fully loaded with 57 tons of coke hangs old freight car partly, in ” of cereal of death of “ of the 8 high speed that amount to mountain paragraph, because overload badly, encounter again turn continuously declivous, he is stepping on brake for long, cause stop a car piece attenuate, brake hub char, brake piece too as big as the clearance between brake hub, stop a machine by cutting off the power is complete invalidation. Be down strong old freight car tantivy, first ahead a coach that playing 38 passengers bumps into a 70 many rice hind, cause coach four-wheel toward heaven and earth impending horizontal stroke is in of roadside defend on column, a lot of passengers in the car are swung to fall on 17 meters of deep hillsides. After this, the old freight car that still did not halt bun of a Songhua River the car knocks over, cause trailer and engine depart tilting back ward to break up, 57 tons of coke block many meters of 100 a section of a highway up dead, cause much person to suffer serious injury.
Expert analyse because:
Brake malfunction has 3 kinds of reasons
The reason that causes brake malfunction is very much. The car is in charge of the Wang Qingxiu's engineer of place to say, because lack essential maintenance to brake system,be, cause stop a car easily the impurity in total pump is sealed and too much, lax, vacuum aids force pump be no longer in force, brake oil passes dirty or oil of a few kinds of brake mixes use, vapour lock is caused after be heated, brake total pump or cent pump leakage are oily, gas tank or pipeline interface are flat; 2 because the operation is undeserved,be bring about parts malfunction, be like long declivous meeting makes brake piece grind char of hub of heat build-up, brake, brake function is complete invalidation; 3 because overload badly,be, below the action of gravitational acceleration, increased traffic motion is inertial, bring about brake malfunction directly.
Speak of brake malfunction, he still said additionally two ideas: It is time of reaction of apply the brake; The 2 travelling speed that are car.
Think commonly, the total reaction time of urgent apply the brake should be 2. 5 second.
To travelling speed, at ordinary times the driver notices speed per hour only, and carelessly second fast. Be in when car dry road surface with horary when the speed travel of 40 kilometer, every second travel 11. 111 meters; Horary when 60 kilometer speed, every second travel 16. 667 meters. According to calculating, if motor vehicle the travel of speed per hour with 90 kilometer, once brake malfunction hits a car, the harm of the accident degree is equivalent to falling down from the place with 10 tall buildings.
Friendship clew:
3 kinds beforehand case consult for you
If car produces brake suddenly in travel to be out of order, the driver answers high speed of ad cool-headed rapid come away blocks empty oil of banging one foot, block high speed change low speed to block, the drag force function that uses motor reduces speed.
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