Four Wheel Drive Queensland

Webmaster Note:  Sorry that I have taken a bit too long in getting this on the site.

Version Two of the NCOP has been officially reviewed and the link to the entire document is below.  Below is a copied section on Electronic Stability Control (ESC).  This this is one of the few changes from previous versions and 4WD QLD needs any feedback to send back to the AAAA ASAP.

It is stressed on the website and as always this is still a ‘live’ document, but it is doubted that any further changes are likely in the foreseeable future considering the first draft of version two came out 2 years ago!

Here’s the link:
http://www.infrastructure.gov.au/roads/vehicle_regulation/bulletin/vsb_ncop.aspx

2.6 MODIFICATIONS TO VEHICLES EQUIPPED WITH ESC

Many modern vehicles are now being equipped with a safety feature known as Electronic Stability Control (ESC). (ESC is also known by other terms including Vehicle Stability Control or Dynamic Stability Control). ESC provides motorists additional safety in terms of vehicle stability and handling, particularly in difficult situations where loss of control could otherwise occur. ESC uses computer technology to assist the driver in maintaining control in emergency situations – particularly when executing avoidance manoeuvres involving sudden swerving and in cases when the vehicle begins to slide and rotate sideways.

Braking is automatically applied to individual wheels, such as the outer front wheel to counter oversteer, or the inner rear wheel to counter understeer. Some ESC systems also reduce engine power until steering control is regained.

ESC is programmed by the vehicle manufacturer for the vehicle to which it is fitted taking into account a number of design parameters such as brake, engine and transmission performance, tyre specifications, steering systems, suspension (type and performance characteristics), mass of the vehicle and weight distribution.

For modification codes contained in this Section of VSB 14, evidence should be obtained either from the vehicle manufacturer or through testing to determine the impact on the ESC system. To remain within the scope of this Section of VSB 14, a vehicle fitted with ESC must not be modified if the operation of the ESC is affected unless the ESC system is adjusted accordingly.