This International Standard specifies an open-loop test procedure to examine the effect of braking on course holding and directional behaviour of a vehicle. Specifically, the method determines how the steady-state circular response of a vehicle is altered by a braking action only. This International Standard applies to passenger cars as defined in ISO 3833 and to light trucks.
The open-loop manoeuvre specified in this test method is not representative of real driving conditions, but is useful to obtain measures of vehicle braking behaviour resulting from control inputs under closely controlled test conditions.
ISO 7975:2006 Referenced Document
ISO 15037-1:1998 Road vehicles - Vehicle dynamics test methods - Part 1: General conditions for passenger cars
ISO 3833 Road Vehicle Type Terms and Definitions Technical Corrigendum 1
ISO 4138 Passenger cars — Steady-state circular driving behaviour — Open-loop test methods*, 2021-09-20 Update
ISO 8855 Road vehicles - Vehicle dynamics and road-holding ability - Vocabulary*, 2011-12-01 Update
ISO 7975:2006 history
2019ISO 7975:2019 Passenger cars — Braking in a turn — Open-loop test method
2006ISO 7975:2006 Passenger cars - Braking in a turn - Open-loop test method
1996ISO 7975:1996 Passenger cars - Braking in a turn - Open-loop test procedure
1985ISO 7975:1985 Road vehicles; Braking in a turn; Open loop test procedure