The braking deceleration , also negative acceleration , indicates how much a body is braked. The braking deceleration is given in the unit m / s².
The mean deceleration of braking from speed v 2 to speed v 1 with braking distance s is:
Example: starting speed v 2 = 20 m / s, remaining speed v 1 = 10 m / s, braking distance s = 100 m:
The braking delay is z. Sometimes also given in fractions or multiples of the acceleration due to gravity .
The braking deceleration is an important criterion for the safety of vehicles and ships and should be as high as possible. When spacecraft re- enters, however, it must not exceed certain values depending on the payload and thermal load.
- Heinz Burg, Andreas Moser (ed.): Handbook of traffic accident reconstruction. Accident recording - vehicle dynamics - simulation, 3rd edition, Springer Verlag, Berlin / Heidelberg 2017, ISBN 978-3-658-16142-2 .
- Horst Bauer: Driving safety systems. 2nd edition, Friedrich Vieweg & Sohn Verlagsgesellschaft mbH, Braunschweig 1998, ISBN 978-3-322-91815-4 .
- Diedrich Lütjen, Manfred Müller: Automobile computing. BG Teubner Verlag, Stuttgart 1984, ISBN 978-3-519-06721-4 .
- List of typical braking delays of vehicles on different lanes
- Calculation of the stopping distance (accessed on November 16, 2017)
- Braking delays and induction of falls of motorcycles (accessed November 16, 2017)
- Brake deceleration and extrapolation (accessed on November 16, 2017)
- Interactive table that can be used to determine the initial speed, the brake track length or the final speed (collision speed) of a vehicle depending on the deceleration and braking threshold time - via juratexte.de .