Document ID: chunk:federal_register_of_legislation:F2014C01109:body:0:p47
Version: federal_register_of_legislation:F2014C01109
Segment Type: other
Provision Reference: 
Character Range: 135497–138710

above cannot be obtained, then the minimum time tmin may be utilized.  However, the requirements of paragraph 1.3. shall still apply.

         1.1.4.  The braking forces shall be calculated from the measured braking rate and the rolling resistance of the unbraked axle which is equal to 0.015 and 0.010 of the static axle load for a driven axle and a non-driven axle, respectively.

         1.1.5.  The dynamic load on the axle shall be that given by the denominator in the formulae shown in paragraph 1.1.8. below;

         1.1.6.  The value of k shall be rounded to three decimal places.

         1.1.7.  Then, the test will be repeated for the other axle(s) as defined in paragraphs 1.1.1. to 1.1.6. above.

         1.1.8.  For example, in the case of a two-axle rear-wheel drive vehicle, with the front axle (1) being braked, the coefficient of adhesion (k) is given by:

                  The other symbols (P, h, E) are defined below;

                             i = axle index (i = 1, front axle;
    i = 2, rear axle)

                             g = acceleration due to gravity : g = 9.81 m/s2

                             P = mass of vehicle

                  h = height of centre of gravity specified by the manufacturer and agreed by the Technical Services conducting the approval test

                             E = wheelbase

         1.1.9.  One coefficient will be determined for the front axle kf and one for the rear axle kr.

NOTES

This compilation of Vehicle Standard (Australian Design Rule 35/04 – Commercial Vehicle Brake Systems) 2013 includes all the instruments set out in the Table of Instruments.  The Table of Amendments provides a history of clauses that have been amended, inserted or deleted.

Table of Instruments
Name of Instrument                                                                                   Registration Date  Commencement Date
Vehicle Standard (Australian Design Rule 35/04 – Commercial Vehicle Brake Systems) 2013              13/08/2013         14/08/2013
                                                                                                     F2013L01570
Vehicle Standard (Australian Design Rule 35/04 – Commercial Vehicle Brake Systems) 2013 Amendment 1  16/09/2014         17/09/2014
                                                                                                     F2014L01222

Table of Amendments
Clause affected  How affected  Amending instrument
2.8              ad            Vehicle Standard (Australian Design Rule 35/04 – Commercial Vehicle Brake Systems) 2013 Amendment 1

ad = added or inserted
am = amended
del = deleted or removed
rr = removed and replaced
 = clause renumbered.  This takes the format of old no.  new no.

[*] UN ECE Vehicle Categories are provided for information and as reference only. The category code may also be in the format L1, LA etc.

[1]/ An axle group shall be treated as a single axle and dual wheels shall be treated as a single wheel.

[1]/ An axle group shall be treated as a single axle and dual wheels shall be treated as a single wheel.

[2]/ The text in this appendix assumes that the vehicle steering is controlled by means of a steering