Document ID: chunk:federal_register_of_legislation:F2017L01221:body:0:p6
Version: federal_register_of_legislation:F2017L01221
Segment Type: other
Provision Reference: 
Character Range: 15510–18538

the presentation of a Regulation No. 13-H certificate which includes the BAS to be approved.
5.6. Provisions for the periodic technical inspection of electronic brake assist systems
5.6.1. It shall be possible at a periodic technical inspection to confirm the correct operational status by visual observation of the warning signals following a power-on.
5.6.2. At the time of type approval, the means implemented to protect against simple unauthorized modification of the operation of the warning signals shall be confidentially outlined. Alternatively, this protection requirement is fulfilled when a secondary means of checking the correct operational status is available.
  6.  Functional requirements
6.1. General performance characteristics for category "A" BAS systems
 When an emergency condition has been sensed by a relative high pedal force, the additional pedal force to cause full cycling of the ABS shall be reduced compared to the pedal force required without the BAS system in operation.
 Compliance with this requirement is demonstrated if the provisions of paragraphs 8.1. to 8.3. of this Regulation are met.
6.2. General performance characteristics for category "B" BAS systems
 When an emergency condition has been sensed, at least by a very fast application of the pedal, the BAS system shall raise the pressure to deliver the maximum achievable braking rate or cause full cycling of the ABS.
 Compliance with this requirement is demonstrated if the provisions of paragraphs 9.1. to 9.3. of this Regulation are met.
  7.  General test requirements
7.1. Variables
 While performing the tests described in this Regulation, the following variables shall be measured:
7.1.1. Brake pedal force, Fp ;
7.1.2. Vehicle velocity, vx ;
7.1.3. Vehicle deceleration, ax ;
7.1.4. Brake temperature, Td ;
7.1.5. Brake pressure, P, where applicable;

7.1.6 Brake pedal speed, vp, measured at the centre of the pedal plate or at a position on the pedal mechanism where the displacement is proportional to the displacement at the centre of the pedal plate allowing simple calibration of the measurement.
7.2. Measuring equipment
7.2.1. The variables listed in paragraph 7.1. above shall be measured by means of appropriate transducers. Accuracy, operating ranges, filtering techniques, data processing and other requirements are described in ISO Standard 15037-1: 2006.
7.2.2. Accuracy of pedal force and disc temperature measurements shall be as follows:
Variable range system  Typical operating range of the transducers  Recommended maximum recording errors
Pedal force            0 to 2,000 N                                ±10 N
Brake temperature      0 – 1,000 °C                                ±5 °C
Brake pressure*        0 – 20 MPa*                                 ±100 kPa*

*  Applicable as specified in paragraph 8.2.5.
7.2.3. Details on analogue and digital data processing of the BAS test procedures are described in Annex 4 to this Regulation. A sampling rate for data acquisition of at least 500 Hz is required.