Document ID: chunk:federal_register_of_legislation:F2021C01192:body:0:p6
Version: federal_register_of_legislation:F2021C01192
Segment Type: other
Provision Reference: 
Character Range: 16446–19450

with a means of limiting the pressure to a maximum value. This value shall be specified by the manufacturer.
2.16. "Actuation" means both application and release of the control.
2.17. "Electric regenerative braking" means a braking system which, during deceleration, provides for the conversion of vehicle kinetic energy into electrical energy.
2.17.1. "Electric regenerative braking control" means a device which modulates the action of the electric regenerative braking system;
2.17.2. "Electric regenerative braking system of category A" means an electric regenerative braking system which is not part of the service braking system;
2.17.3. "Electric regenerative braking system of category B" means an electric regenerative braking system which is part of the service braking system;
2.17.4. "Electric state of charge" means the instantaneous ratio of electric quantity of energy stored in the traction battery relative to the maximum quantity of electric energy which could be stored in this battery;
2.17.5. "Traction battery" means an assembly of accumulators constituting the storage of energy used for powering the traction motor(s) of the vehicle.
2.18. "Phased braking" is a means which may be used where two or more sources of braking are operated from a common control, whereby one source may be given priority by phasing back the other source(s) so as to make increased control movement necessary before they begin to be brought into operation.
2.19. "Nominal value" definitions for braking reference performance are required to put a value on the transfer function of the braking system, relating output to input for vehicles individually.
2.19.1. "Nominal value" is defined as the characteristic which can be demonstrated at type approval and which relates the braking rate of the vehicle on its own to the level of the braking input variable.
2.20. "Automatically commanded braking" means a function within a complex electronic control system where actuation of the braking system(s) or brakes of certain axles is made for the purpose of generating vehicle retardation with or without a direct action of the driver, resulting from the automatic evaluation of on-board initiated information.
2.21. "Selective braking" means a function within a complex electronic control system where actuation of individual brakes is made by automatic means in which vehicle retardation is secondary to vehicle behaviour modification.
2.22. "Braking signal": logic signal indicating brake activation as specified in paragraph 5.2.22. of this Regulation.
2.23. "Emergency braking signal": logic signal indicating emergency braking as specified in paragraph 5.2.23. of this Regulation.
2.24. "Identification code" identifies the brake discs or brake drums covered by the braking system approval according to this regulation. It contains at least the manufacturer's trade name or trademark and an identification number.
  3.  Application for approval
3.1. The application for approval of a vehicle type with