Document ID: chunk:federal_register_of_legislation:F2021L01518:reg:60:p10
Version: federal_register_of_legislation:F2021L01518
Segment Type: reg
Provision Reference: reg 60 (pt 10/16)
Character Range: 60862–64120

or electro-hydraulic elements.

              2.4. "Complex Electronic Vehicle Control Systems" are those electronic control systems in which a function controlled by an electronic system or the driver may be over-ridden by a higher-level electronic control system/function. A function which is over-ridden becomes part of the complex system, as well as any overriding system/function within the scope of this Regulation. The transmission links to and from overriding systems/function outside of the scope of this Regulation shall also be included.

              2.5. "Higher-Level Electronic Control" systems/functions are those which employ additional processing and/or sensing provisions to modify vehicle behaviour by commanding variations in the function(s) of the vehicle control system. This allows complex systems to automatically change their objectives with a priority which depends on the sensed circumstances.

              2.6. "Units" are the smallest divisions of system components which will be considered in this annex, since these combinations of components will be treated as single entities for purposes of identification, analysis or replacement.

              2.7. "Transmission links" are the means used for inter-connecting distributed units for the purpose of conveying signals, operating data or an energy supply. This equipment is generally electrical but may, in some part, be mechanical, pneumatic or hydraulic.

              2.8. "Range of control" refers to an output variable and defines the range over which the system is likely to exercise control.

              2.9. "Boundary of functional operation" defines the boundaries of the external physical limits within which the system is able to maintain control.

              2.10. "Safety Related Function" means a function of "The System" that is capable of changing the dynamic behaviour of the vehicle. "The System" may be capable of performing more than one safety related function.

3. Documentation
              3.1. Requirements

               The manufacturer shall provide a documentation package which gives access to the basic design of "The System" and the means by which it is linked to other vehicle systems or by which it directly controls output variables. The function(s) of "The System" and the safety concept, as laid down by the manufacturer, shall be explained. Documentation shall be brief, yet provide evidence that the design and development has had the benefit of expertise from all the system fields which are involved. For periodic technical inspections, the documentation shall describe how the current operational status of "The System" can be checked.

               The Technical Service shall assess the documentation package to show that "The System":

                  (a) Is designed to operate, under non-fault and fault conditions, in such a way that it does not induce safety critical risks;

                  (b) Respects, under non-fault and fault conditions, all the appropriate performance requirements specified elsewhere in this Regulation; and,

                  (c) Was developed according to the development process/method declared by the manufacturer.

              3.1.1. Documentation shall be made available in