BS AU 256:1994

National foreword
Committees responsible
Introduction
Method
1. Scope
2. Normative references
3. Principle
4. Variable
5. Measuring equipment
6. Test conditions
7. Test procedure
8. Data evaluation and presentation of results
Annexes
A. (normative) Test report - General data
B. (normative) Test report - Presentation of results
Table
1. Measured variables, their typical operating ranges
     and recommended maximum errors
Figures
1. Required characteristics of phaseless digital filters
2. Plotting of variable delta sY
B.1 Mean longitudinal deceleration - aX,tn during the
     time interval t0 to tn as a function of the initial
     lateral acceleration aY,0
B.2 Maximum value of sideslip angle beta max during the
     observation period 0 to 3 s, as a function of the
     initial lateral acceleration aY,0
B.3 Difference between the maximum value of the sideslip
     angle beta max during the observation period 0 to 3 s
     and the initial value of the sideslip angle beta 0,
     as a function of the initial lateral acceleration
     aY,0
B.4 Difference between the value of the sideslip angle
     at actual time beta tn and the initial value of the
     sideslip angle beta 0 as a function of the initial
     lateral acceleration aY,0
B.5 Ratio between the values of the path radius of the
     vehicle reference point at actual time Rtn and the
     initial radius R0 as a function of the initial
     lateral acceleration aY,0
B.6 At actual time tn, the difference between the value
     of the yaw angle psi tn, and the reference value of
     the yaw angle psi tn,ref as a function of the initial
     lateral acceleration aY,0
B.7 At actual time tn, the ratio between the value of
     the yaw velocity psi tn and the reference value of
     the yaw velocity psi tn,ref as a function of the
     initial lateral acceleration aY,0
B.8 Ratio between the maximum value of the yaw velocity
     during the observation period psi max and the initial
     value of the yaw velocity psi 0 as a function of the
     initial lateral acceleration
B.9 At actual time tn, the ratio between the value of the
     lateral acceleration aY,tn and the reference value
     of the lateral acceleration aY,tn,ref as a function
     of the initial lateral acceleration aY,0
B.10 Time lag delta tA between power-off initiation and
     the instant at which a 1 m path deviation of the
     reference point is obtained, as a function of the
     initial lateral acceleration aY,0
B.11 Path deviation of the reference point at actual time
     delta sY,tn as a function of the initial lateral
     acceleration aY,0
B.12 Projected path of the reference point in the
     XEYE-plane of the earth-fixed axis system

Defines an open loop test method for determining the power off reactions of vehicle in a turn. Coverage includes variables, measuring equipment, and data evaluation and presentation of results. Also gives detailed diagrams and annexes.