Handling

The handling is a badly defined expression, describing the road behavior of a vehicle (Automobile or Motocyclette primarily).

This expression tries to describe if the reactions of a vehicle to the road accidents (bumps, holes, turns, etc) is healthy or in conformity with waitings of the driver.

A certain number of phenomena can enter in account:

Geometry of the vehicle

  • footing
  • drives out
  • pinching
  • set
  • way

Suspensions

  • hardness of the Spring S
  • quality of the damping
  • distribution of the pneumatic masses
    • dimensions (width, height, etc)
    • pressure
    • form
    • sculptures
    • gum

Motricity

  • front, back or integral transmission
  • the presence of a Differential

  • rigidity of the frame

  • relationship between the suspended mass and masses it not suspended
  • the Dynamique of the vehicle
  • etc

The whole of these elements can lead to a certain number of behavior anomalies road:

  • a too long footing makes the vehicle not very handy, whereas too short, it becomes unstable

  • a too long hunting or too short has same the effects
  • too stiff suspensions cause an separation of the wheels of the ground on the bumps
  • a too weak damping causes infinite undulations on bad coating
  • all kinds of causes can cause a Guidonnage
  • a too narrow way, a too high center of gravity and an absence of system stabilizer facilitate the payment in turn
  • a bad distribution of the masses can generate an understeer or oversteer behavior (also influenced by the type of transmission)

Various systems can improve the handling:

  • systems stabilizer

  • systems antiplongée
  • shock absorber of direction

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