- complex electronic vehicle control system
means an electronic control system in which a function controlled by an electronic system or the driver may be over-ridden by a higher level electronic control system/function, thus becoming part of the complex system, as well as any overriding of the system, including the transmission links to and from the overriding systems/function outside of the scope of this Regulation;
- control strategy
means a strategy to ensure robust and safe operation of the function(s) of an electronic control system in response to a specific set of ambient and/or operating conditions (such as road surface condition, traffic intensity and other road users, adverse weather conditions, etc.), which may include the automatic deactivation of a function or temporary performance restrictions (e.g. a reduction in the maximum operating speed, etc.);
- corrective directional control function (CDCF)
means a control function within an electronic control system whereby, for a limited duration, changes to the steering angle of one or more wheels and/or braking of individual wheels may result from the automatic evaluation of signals initiated on-board the vehicle optionally enriched by data provided off-board the vehicle, in order to correct lane departure, e.g. to avoid crossing lane markings, leaving the road;
- distance to lane marking (DTLM)
means the remaining lateral distance (perpendicular to the lane marking) between the inner side of the lane marking and most outer edge of the tyre before the subject vehicle crosses the inner side of the lane marking;
- dry road
means a road with a nominal peak braking coefficient of 0,9;
- electronic control system
means a combination of units, designed to cooperate in the production of a vehicle control function by electronic data processing;
- flat road
means a road with a slope less than 1 % in the longitudinal direction and for the lateral direction, less than 2 % for half a lane width either side of the centreline and less than 3 % for the outer half of the lane;
- safety concept
means a description of the measures designed into the system, for instance within the electronic units, so as to address system integrity and ensure safe operation under fault and non-fault conditions, including in the event of an electrical failure.
- subject vehicle
means the vehicle being tested;
- The System
means the electronic control system and complex electronic control systems that provide or form part of the control transmission of the emergency lane-keeping system, including the transmission links to or from other vehicle systems that act on the emergency lane-keeping system;
- transmission links
means any electric, mechanic, pneumatic or hydraulic equipment used for inter-connecting distributed units for the purpose of conveying signals, operating data or energy supply;
- units
means the smallest divisions of system components which will be considered, since these combinations of components will be treated as single entities for purposes of identification, analysis or replacement;
- vehicle type with regard to its emergency lane-keeping system
means a category of vehicles which do not differ in such essential aspects as: