TTXGP 2012 Technical Rules

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The revised TTXGP Technical Rules for 2012 are now released.  These have been written by the IET Technical Advisory Panel to TTXGP, the independent panel of experts that is drawn from the membership of the largest professional engineering institution in Europe. The panel is composed of specialists in control systems, electric propulsion and automotive electronics, and has assessed all entries using the system established in 2009 and refined for 2010.

It has also undertaken the technical scrutineering at all the racing events this year.

There have also been significant inputs to the rule revision process from Wiki.eGrandPrix.Com, adjudicated by Harry Mallin based in the US.

Click here to download the
TTXGP Rules and Regulations
Click here to download the
TTXGP Numbers and Boards

The panel has drawn on the experiences of racing in 2010 and 2011 at a wide range of circuits both in North America and Europe, with teams from 3 continents, to continue its mission of achieving safety and racing in a sensible and meaningful way.

HIGHLIGHTS:

      Following experience from the 2011 season, there have been some amendments to the rules for 2012.


This note accompanies the revised rules, and highlights the key changes. Note that careful reading of the rules is essential, and this note is not a substitute but simply a guideline.

Some renumbering of the rules has resulted from the insertion of the new rule 19 and the move of (new number) rule 25.

Rule 2 – TTX75 Award.

The TTX75 class has now been changed to a special award.

Furthermore, following issues with interpretation, the manufacturer’s maximum cell voltage will be accepted to calculate the energy carried on the bike. Please note the information that you need to provide in this respect and in terms of number and configuration of cells, and the pack dimensions.

Again there has been some discussion about the use of a device to monitor the amount of energy consumed on a machine in support of scrutineering this requirement. This will not be applied this season. However the Panel will continue to review this in the light of experience gained during the season.

      Rule 4 – Charging the Accumulator

      Following incidents over the past two seasons, it is required that a competent team member is always present when accumulator charging is taking place. 


Rule 19 – Battery Management System

      Again, following incidents this past season, we have added an additional rule on the requirements for a Battery Management System. This is a safety requirement and is intended to protect both people and machine. Please read this rule carefully.

 

     Rule 23 – Electrical Safety

      The maximum voltage limit has been raised from 500V to 700V. Note that this means 700V DC or a peak of 700V for AC.

 


Rule 24 – Emergency Stop & General Circuit Breaker

The rules for the Emergency Stops have been changed slightly. As previously a ‘kill switch’ is required for the rider, to be operable without moving hands from the handlebars. However this no longer has to provide complete isolation of the batteries when operated although this would be preferred. The Emergency Stop on the rear of the machine MUST comply with the full requirement to isolate all the batteries when operated, acting as a General Circuit Breaker.
The requirement for a lanyard has been removed.
 

Rule 25 – Discharge of Capacitors

This rule is unchanged from the old rule ‘Capacitors’, but has been renamed and moved to more logically follow Rule 24 – Emergency Stop.
 

Rule 26 - Power Indicator

Some clarification is added for this rule. The power indicator must operate when the bike is live. It should ONLY be switched off when the operated Emergency Stop acts as a General Circuit Breaker, i.e. the batteries are completely isolated, and then go out immediately. It should not go out when the Kill Switch is operated if this does not act as a General Circuit Breaker.
 

Rule 31 – Accumulator Fastening

The references to metal fastenings have been clarified.

/end/


*******  IF YOU HAVE ANY TECHNICAL QUESTIONS REGARDING THE RULES PLEASE CLICK HERE IN THE FIRST INSTANCE AS SOMEONE MAY HAVE ALREADY ASKED AND BEEN ANSWERED ********




Our thanks go to all contributors to the rules Wiki in 2009-2011, Harry Mallin, and to all members of the IET who form the TTXGP Technical Advisory Panel, who are listed here, and particularly to Professor Pat Wheeler of Nottingham University for his work on the TCF templates.

If you want to contribute to the thinking behind improving the rulebook for eRacing please click here  and join the debate:-